HKC Corporation Limited

China

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Date
New (last 4 weeks) 30
2024 April (MTD) 17
2024 March 28
2024 February 35
2024 January 30
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IPC Class
G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals 890
G02F 1/1362 - Active matrix addressed cells 410
G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors 336
G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix 243
H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body 229
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NICE Class
09 - Scientific and electric apparatus and instruments 16
07 - Machines and machine tools 1
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Pending 159
Registered / In Force 2,787
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1.

DISPLAY PANEL, DISPLAY MODULE AND DISPLAY DEVICE

      
Application Number CN2023094770
Publication Number 2024/077950
Status In Force
Filing Date 2023-05-17
Publication Date 2024-04-18
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Li, Rongrong

Abstract

A display panel (13), a display module (10) comprising the display panel (13), and a display device (100). The display panel (13) comprises a plurality of pixel units (15) arranged in an array. During display of two consecutive image frames, any pixel unit (15) receives a data signal (Data+) of a first polarity for image display when the first image frame (F1) is displayed, and receives a data signal (Data-) of a second polarity for image display when the second image frame (F2) is displayed. Each pixel unit (15) comprises a first driving module (151), a second driving module (152) and a light-emitting module (153). The first driving module (151) is used for receiving the data signal (Data+) of the first polarity and controlling the light-emitting module (153) to emit light according to the data signal (Data+) of the first polarity. The second driving module (152) is used for receiving the data signal of the second polarity (Data-) and controlling the light emitting module (153) to emit light according to the data signal (Data-) of the second polarity. By driving the pixel unit (15) to emit light by means of the data signals of the two polarities, the continuous working period of a control module in the pixel unit (15) is effectively reduced, and the heat of the pixel unit (15) is reduced.

IPC Classes  ?

  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]

2.

DRIVE CIRCUIT, DISPLAY PANEL, AND DISPLAY DEVICE

      
Application Number CN2023100389
Publication Number 2024/077992
Status In Force
Filing Date 2023-06-15
Publication Date 2024-04-18
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Li, Rongrong

Abstract

The present application provides a drive circuit, a display panel, and a display device. A first light emission control sub-circuit (110) and a second light emission control sub-circuit (120) of the drive circuit (100) both drive a light-emitting unit (140) to emit light; an operation sub-circuit (160) compares a reference voltage with the voltage at the electrical connection point between an energy storage element (150) and the operation sub-circuit (160) so as to obtain an output signal; a first data input sub-circuit (180) transmits, when connected and according to the output signal, a first data signal to the first light emission control sub-circuit (110) and the second light emission control sub-circuit (120), so as to drive the light-emitting unit (140) to emit light; the second data input sub-circuit (190) transmits, when connected and according to the output signal, a second data signal to the first light emission control sub-circuit (110) and the second light emission control sub-circuit (120), so as to drive the light-emitting unit (140) to emit light, thereby switching direct-current driving to alternating-current driving, and improving the display life of TFTs.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
  • G09G 3/3225 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix

3.

PIXEL DRIVING CIRCUIT AND DRIVING METHOD THEREFOR, AND DISPLAY APPARATUS

      
Application Number CN2023095574
Publication Number 2024/077961
Status In Force
Filing Date 2023-05-22
Publication Date 2024-04-18
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Zheng, Haoxuan

Abstract

A pixel driving circuit, a driving method, and a display panel (40). The pixel driving circuit comprises a driving transistor (T0), a storage capacitor (C), a trigger (U1), a first response switch (T1) and a second response switch (T2), a first end of the driving transistor (T0) being connected to a power supply end (10), a second end being connected to a light-emitting unit (20), a control end being connected to a first end of the storage capacitor (C), a second end of the storage capacitor (C) being connected to the power supply end (10), a first end of the first response switch (T1) being connected to a data line (data), a control end being connected to a scan line (scan), a second end being connected to the first end of the storage capacitor (C), an input end of the trigger (U1) being connected to the scan line (scan), a first end of the second response switch (T2) being connected to the second end of the driving transistor (T0), a second end of the second response switch (T2) being connected to an initial voltage end (30), and a control end of the second response switch (T2) being connected to an output end (Q, Q') of the trigger (U1).

IPC Classes  ?

  • G09G 3/3225 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix

4.

DISPLAY STRUCTURE AND DISPLAY APPARATUS

      
Application Number CN2023095257
Publication Number 2024/077958
Status In Force
Filing Date 2023-05-19
Publication Date 2024-04-18
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Pu, Yang
  • Kang, Baohong

Abstract

The present application provides a display structure and a display apparatus. The display structure comprises a pixel area (101); a viewing angle adjusting area is provided on at least one side of the pixel area (101); a light emitting part is provided in the pixel area (101); the light emitting part is used for emitting light; the viewing angle adjusting area is provided with a viewing angle adjusting part; the viewing angle adjusting part comprises a light shielding part and an adjusting electrode (140); the light shielding part has a narrow viewing angle position for shielding the light from the light emitting part and a wide viewing angle position for avoiding the light from the light emitting part; the adjusting electrode (140) is arranged corresponding to the light shielding part; the adjusting electrode (140) forms an electric field; and the electric field drives the light shielding part to move between the narrow viewing angle position and the wide viewing angle position.

IPC Classes  ?

  • H10K 50/86 - Arrangements for improving contrast, e.g. preventing reflection of ambient light
  • H01L 33/58 - Optical field-shaping elements
  • H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
  • G02F 1/1676 - Electrodes
  • G02F 1/167 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
  • H10K 59/126 - Shielding, e.g. light-blocking means over the TFTs

5.

PIXEL DRIVE CIRCUIT AND DISPLAY PANEL

      
Application Number CN2023109156
Publication Number 2024/078091
Status In Force
Filing Date 2023-07-25
Publication Date 2024-04-18
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Fan, Tao
  • Yuan, Haijiang

Abstract

A pixel drive circuit (100) and a display panel (1000). The pixel drive circuit (100) comprises: a scanning line (101), which is used for providing a scanning voltage, wherein the scanning voltage is at a first level in a sampling stage (T1), and is at a second level in a data writing stage (T2); a data line (102), which is used for providing a data voltage, wherein the data voltage is at a high level in the sampling stage (T1), and is at a low level in the data writing stage (T2); a capacitor (20), a first capacitor end (21) of which is electrically connected to the data line (102) in both the sampling stage (T1) and the data writing stage (T2); and a driving transistor (30), a source electrode end (32) of which is electrically connected to the scanning line (101), a gate electrode end (31) of which is electrically connected to a second capacitor end (22), and a drain electrode end (33) of which is electrically connected to the gate electrode end (31) in the sampling phase (T1) and is disconnected from the gate electrode end (31) in the data writing stage (T2). The pixel drive circuit (100) can improve the display uniformity of the display panel (1000).

IPC Classes  ?

  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]

6.

PIXEL DRIVE CIRCUIT, DISPLAY PANEL, AND DISPLAY DEVICE

      
Application Number CN2023102793
Publication Number 2024/078014
Status In Force
Filing Date 2023-06-27
Publication Date 2024-04-18
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Zheng, Haoxuan

Abstract

A pixel drive circuit (100), a display panel, and a display device. A first drive module (10) of the pixel drive circuit (100) receives a first scan signal (Scan1) and a data signal (Data), and according to same, selectively receives a first voltage from a first power supply end (Vodd) and receives a second voltage from a second power supply end (Veven); the second drive module (20) receives a second scan signal (Scan2) and the data signal (Data), and according to same, selectively receives a second voltage from the first power supply end (Vodd) and receives a first voltage from the second power supply end (Veven). The first voltage and the second voltage received by the first drive module (10) and the second drive module (20) are alternately applied to two ends of a light-emitting unit (30) so as to drive the light-emitting unit (30) to emit light. The drive components in the pixel drive circuit (100) are driven by an alternating current, so the pixel drive circuit can operate intermittently, facilitating the timely release of the heat generated when the drive components are in operation, thus effectively reducing the working temperature of the drive components and prolonging the service life.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

7.

BACKLIGHT MODULE AND DISPLAY DEVICE

      
Application Number CN2023095382
Publication Number 2024/077960
Status In Force
Filing Date 2023-05-19
Publication Date 2024-04-18
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Wan, Ye
  • Zheng, Haoxuan

Abstract

Provided in the present application are a backlight module (100) and a display device (500). The backlight module (100) comprises a back plate (1), light bars (2), a dimming diaphragm (3) and a driving assembly (4), wherein the back plate (1) comprises a bottom plate (12); the light bars (2) are disposed on one side of the bottom plate (12), and each light bar comprises a circuit board (21), and a plurality of first light-emitting units (22) and a plurality of second light-emitting units (23) which are arranged on the circuit board (21); the dimming diaphragm (3) is disposed on the side of the light bar (2) away from the bottom plate (12) and has a diffusion mode and a transparent mode; and the driving assembly (4) is disposed on the bottom plate (12), is connected to the light bars (2), and is configured to drive the light bars (2) to rotate. The first light-emitting units (22), which are capable of generating diffused light, and the second light-emitting units (23), which are capable of generating collimated light, are arranged on the rotatable light bars (2), such that the positions of the first light-emitting units (22) and the second light-emitting units (23) are continuously changed as the light bars (2) rotate, such that the region where the collimated light is transmitted to a display panel (200) can be changed, thereby achieving local dynamic anti-peeking of the display panel (200).

IPC Classes  ?

8.

DISPLAY APPARATUS, CONTROL CIRCUIT, PEEP-PROOF DISPLAY METHOD AND STORAGE MEDIUM

      
Application Number CN2023095381
Publication Number 2024/077959
Status In Force
Filing Date 2023-05-19
Publication Date 2024-04-18
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Wan, Ye
  • Kang, Baohong

Abstract

Provided in the present application are a display apparatus (500), a control circuit (300), a peep-proof display method and a storage medium (400). The display apparatus (500) comprises a display panel (200) and a backlight module (100). The peep-proof display method comprises: determining a peep-proof area; controlling a dimming diaphragm (3) to alternately switch between a transparent mode and a diffusion mode; in response to the dimming diaphragm (3) being switched to the transparent mode, controlling a first light-emitting unit (22), which rotates to the peep-proof area, to not emit light and controlling a second light-emitting unit (23), which rotates to the peep-proof area, to emit light; and in response to the dimming diaphragm (3) being switched to the diffusion mode, controlling the first light-emitting unit (22) and second light-emitting unit (23), which rotate to the peep-proof area, to not emit light. In different modes of the dimming diaphragm (3), the first light-emitting unit (22) and the second light-emitting unit (23) continuously change positions and adjust light-emitting situations along with the rotation of a light bar, such that an area of the display panel (200) to which collimated light is transmitted can be changed, thereby making the display panel (200) locally dynamically peep-proof.

IPC Classes  ?

9.

DRIVING CIRCUIT AND DRIVING DEVICE FOR DISPLAY PANEL

      
Application Number 18002341
Status Pending
Filing Date 2021-12-30
First Publication Date 2024-04-11
Owner HKC CORPORATION LIMITED (China)
Inventor
  • He, Jing
  • Kang, Baohong

Abstract

A driving circuit and a driving device for a display panel, and the driving circuit for the display panel includes: a stretching circuit, a control circuit, a bootstrapping circuit, and an output circuit; the control circuit is respectively electrically connected with the stretching circuit, the bootstrapping circuit, and the output circuit, and the bootstrapping circuit is electrically connected with the output circuit. The stretching signal generated by the stretching circuit can enable the bootstrapping circuit to have enough time to be charged, and ensure that the output circuit can reach or exceed the preset potential when receiving the bootstrap signal, thereby the voltage being not stable when the gate driving signal is output is avoided, and the phenomenon that the gate driving signal is stopped in advance is avoided.

IPC Classes  ?

  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

10.

Backplane assembly, backlight module and display

      
Application Number 18446794
Grant Number 11953717
Status In Force
Filing Date 2023-08-09
First Publication Date 2024-04-09
Grant Date 2024-04-09
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Chen, Qinglin
  • Yuan, Haijiang

Abstract

Disclosed are a backplane assembly, a backlight module and a display. The backplane assembly includes a bottom backplane, an upper frame, a locking assembly, a bearing body and a first elastic member; the bottom backplane has a bottom wall, and the upper frame is arranged above the bottom backplane; the upper frame has opposite first and second sides; a connecting line from the first side to the second side is parallel to the bottom wall of the bottom backplane, and the first side is provided with a rotating shaft extending toward the bottom backplane.

IPC Classes  ?

  • F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
  • H05K 5/00 - Casings, cabinets or drawers for electric apparatus

11.

Display panel driving method, drive circuit, and LED display apparatus

      
Application Number 18238277
Grant Number 11955055
Status In Force
Filing Date 2023-08-25
First Publication Date 2024-04-09
Grant Date 2024-04-09
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Huang, Peidi
  • Gu, Tao
  • Kang, Baohong

Abstract

A display panel driving method includes: obtaining a target grayscale value of each pixel unit in picture data of a frame to be displayed; determining, based on the target grayscale value of the pixel unit in the picture data of the frame to be displayed, a target pixel unit row that needs luminance compensation in the frame to be displayed; and if a display panel is driven to display a picture of the frame to be displayed, when a non-target pixel unit row is scanned, outputting, through scanning lines corresponding to the non-target pixel unit row, scanning signals with turn-on voltages each equal to a first turn-on voltage; and when a target pixel unit row is scanned, outputting, through scanning lines corresponding to the target pixel unit row, scanning signals with turn-on voltages higher than the first turn-on voltage.

IPC Classes  ?

  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

12.

LED CHIP TRANSFER METHOD AND DISPLAY PANEL

      
Application Number 18330332
Status Pending
Filing Date 2023-06-06
First Publication Date 2024-04-04
Owner HKC Corporation Limited (China)
Inventor
  • Pu, Yang
  • Yuan, Haijiang

Abstract

A LED chip transfer method comprises: providing a driving substrate having at least one set of binding points, the set of binding points comprising a first and second binding points; forming a compensation layer covering the first and second binding points; providing a chip substrate comprising a substrate and chips; performing a first alignment treatment to form a first groove and a second groove on the compensation layer; forming a first and second via holes spaced from each other by the first groove and the second groove, forming a first transfer electrode and a second transfer electrode disconnected from each other on the compensation layer, inserting the first pin and the second groove into the first groove and the second groove to bind with the first transfer electrode and the second transfer electrode; and stripping the substrate from the chip.

IPC Classes  ?

  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices all the devices being of a type provided for in the same subgroup of groups , or in a single subclass of , , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

13.

DISPLAY PANEL, DISPLAY MODULE, AND DISPLAY APPARATUS

      
Application Number CN2023094775
Publication Number 2024/066394
Status In Force
Filing Date 2023-05-17
Publication Date 2024-04-04
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Zheng, Haoxuan

Abstract

A display panel (13), a display module (10), and a display apparatus (100). The display panel (13) comprises a plurality of pixel units (15), which are arranged in a matrix, wherein the pixel units (15) comprise a first display unit (151) and a second display unit (152), the first display unit (151) and the second display unit (152) being connected in parallel between a first drive voltage end and a second drive voltage end, and receiving a first drive voltage (V1) and a second drive voltage (V2), respectively. During the display process of two consecutive frames of images, when a first frame of image is displayed, the first drive voltage (V1) is greater than the second drive voltage (V2), and the first drive voltage (V1) and the second drive voltage (V2) cooperate to drive the first display unit (151) to perform image display; and when a second frame of image is displayed, the second drive voltage (V2) is greater than the first drive voltage (V1), and the first drive voltage (V1) and the second drive voltage (V2) cooperate to drive the second display unit (152) to perform image display.

IPC Classes  ?

  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
  • G09G 3/3258 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element

14.

GROWTH SUBSTRATE, DISPLAY PANEL AND MANUFACTURING METHOD THEREFOR

      
Application Number CN2023097432
Publication Number 2024/066431
Status In Force
Filing Date 2023-05-31
Publication Date 2024-04-04
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Pu, Yang
  • Kang, Baohong

Abstract

The present invention relates to a growth substrate, a display panel and a manufacturing method therefor. The growth substrate comprises a substrate (11). The substrate (11) comprises a plurality of chip growth regions (111) which are arranged at intervals in an array and a non-growth region (112) located among the plurality of chip growth regions. The growth substrate further comprises a refractive structure (13) arranged on the substrate (11). The orthographic projection of the refractive structure (13) on the substrate (11) covers the non-growth region (112) and does not overlap with at least part of each chip growth region (111). The refractive structure (13) is used for refracting light corresponding to the non-growth region (112) to positions corresponding to the chip growth regions (111).

IPC Classes  ?

  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 21/67 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components
  • G09F 9/33 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

15.

DISPLAY PANEL, DRIVING METHOD AND DISPLAY DEVICE

      
Application Number CN2023095143
Publication Number 2024/066401
Status In Force
Filing Date 2023-05-18
Publication Date 2024-04-04
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Mancheng
  • Li, Rongrong

Abstract

A display panel, a driving method and a display device. The driving method comprises: generating a gating signal by means of a delay component, and sending the gating signal to a corresponding micron-level light-emitting component (S10); and on the basis of the micron-level light-emitting component, when it is detected that the gating signal satisfies a voltage condition, intercepting a column data signal in a column tube control component according to the gating signal, and driving a sub-pixel according to the column data signal (S20). By connecting a delay component to a single row channel (30) extending out from a row tube control component, it is possible for the row tube control component to control a plurality of micron-level light-emitting components corresponding to the single row channel (30) by means of the single row channel.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

16.

LED CHIP TRANSFER METHOD AND DISPLAY PANEL

      
Application Number CN2023097427
Publication Number 2024/066430
Status In Force
Filing Date 2023-05-31
Publication Date 2024-04-04
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Pu, Yang
  • Yuan, Haijiang

Abstract

An LED chip transfer method and a display panel. The chip transfer method comprises: providing a driving substrate (10) provided with at least one group of binding points, one group of binding points comprising a first binding point (101) and a second binding point (102); forming, on the driving substrate (10), a compensation layer (103) covering the first binding point (101) and the second binding point (102); providing a chip substrate, the chip substrate comprising a base substrate (201) and a plurality of chips (30); performing first alignment processing, and forming first recesses (103a) and second recesses (103b) on the compensation layer (103), the second recesses (103b) and the first recesses (103a) being spaced apart from each other; forming, on the compensation layer (103), first vias (103c) and second vias (103d) spaced apart from the first recesses (103a) and the second recesses (103b); forming, on the compensation layer (103), first transfer electrodes (401) and second transfer electrodes (402) disconnected from each other; inserting first pins (302) into the first recesses (103a) and binding the first pins (302) to the first transfer electrodes (401), and inserting second pins (303) into the second recesses (103b) and binding the second pins (303) to the second transfer electrodes (402); and peeling off the base substrate (201) from the chips (30).

IPC Classes  ?

  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/48 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor body packages
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof

17.

Display panel and display device

      
Application Number 18334940
Grant Number 11947224
Status In Force
Filing Date 2023-06-14
First Publication Date 2024-04-02
Grant Date 2024-04-02
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhang, Jianying
  • Kang, Baohong

Abstract

A display panel is provided. The display panel includes a display region and a non-display region surrounding a periphery of the display region. The non-display region includes a multiple corner regions and multiple linear regions. The display panel further includes a first substrate, a second substrate, a liquid crystal layer, and a bezel assembly. The bezel assembly includes multiple support members and multiple sealant. At least one of the multiple support members is disposed in the corner region and the sealant is disposed in the linear region. The support member and the sealant bonds the first substrate and the second substrate. Two opposite ends of the sealant are respectively connected with one of the support members in two corner regions, and the liquid crystal layer is sealed between the first substrate and the second substrate. A display device having the display panel is also provided.

IPC Classes  ?

18.

DISPLAY PANEL AND DISPLAY DEVICE

      
Application Number CN2023100249
Publication Number 2024/060707
Status In Force
Filing Date 2023-06-14
Publication Date 2024-03-28
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Li, Zeyao
  • Li, Rongrong

Abstract

A display panel (100) and a display device. The display panel comprises a drive substrate (1), a bonding layer (30) and a plurality of light-emitting elements (40). The drive substrate (1) comprises a plurality of groups of bonding pads (20), wherein each group of bonding pads (20) comprises a first bonding pad (21) and a second bonding pad (22); the bonding layer (30) is arranged on the plurality of groups of bonding pads (20); and each of the light-emitting elements (40) comprises a semiconductor light-emitting layer (43), a first electrode (41) and a second electrode (42), wherein the first electrode (41) and the second electrode (42) are respectively arranged at two opposite ends of the semiconductor light-emitting layer (43), the first electrode (43) is electrically connected to the corresponding first bonding pad (21) by means of the bonding layer (30), the second electrode (42) is electrically connected to the corresponding second bonding pad (22) by means of the bonding layer (30), the second electrodes (42) of at least some of the adjacent light-emitting elements (40) are close to each other, and the second electrodes (42) close to each other are short-circuited by means of the same bonding layer (30) and/or the same second bonding pad (22). By means of the display panel (100), a limitation of the transfer precision of the light-emitting elements (40) can be overcome, thereby effectively increasing the resolution.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
  • G09F 9/33 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

19.

TOUCH PANEL AND ELECTRONIC DEVICE

      
Application Number 18329026
Status Pending
Filing Date 2023-06-05
First Publication Date 2024-03-28
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Li, Wang
  • Yuan, Haijiang

Abstract

A touch panel and an electronic device are provided in the disclosure. The touch panel includes multiple touch units spaced apart from each other. Each touch unit includes a driving electrode and detection electrodes. The driving electrode includes a first driving branch and multiple second driving branches spaced apart from each other. The multiple second driving branches are connected with the first driving branch. Two adjacent second driving branches and the first driving branch define at least one receiving space. Each receiving space receives at least one of the detection electrodes. Each detection electrode is electrically connected with a touch-detection signal line, and different detection electrodes are electrically connected with different touch-detection signal lines, respectively.

IPC Classes  ?

  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

20.

PIXEL CIRCUIT, DISPLAY PANEL, AND DISPLAY APPARATUS

      
Application Number CN2023095018
Publication Number 2024/060647
Status In Force
Filing Date 2023-05-18
Publication Date 2024-03-28
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Ning, Xueqiang
  • Li, Jianlei
  • Huang, Peidi
  • Chen, Jie
  • Li, Kelin
  • Gu, Tao
  • Yuan, Haijiang

Abstract

A pixel circuit (40), a display panel (1, 10), and a display apparatus (100). The pixel circuit (40) comprises a control unit (50), a light-emitting unit (60) and a driving unit (70), the control unit (50) controlling a first light-emitting element (A) and/or a second light-emitting element (B) of the light-emitting unit (60) to be electrically connected to a first power supply ELVSS so as to emit light. In the pixel circuit (40), the first light-emitting element (A) and the second light-emitting element (B) are arranged, and the control unit (50) controls one light-emitting element of the light-emitting unit (60) to emit light, and controls the other light-emitting element to receive a second cathode voltage so as to release charges accumulated therein, thereby prolonging the display life of the light-emitting unit (60) and reducing the risk of screen burn-in.

IPC Classes  ?

  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]

21.

Pixel driving circuit, pixel driving method and display panel

      
Application Number 18327265
Grant Number 11942038
Status In Force
Filing Date 2023-06-01
First Publication Date 2024-03-26
Grant Date 2024-03-26
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Fan, Tao
  • Yuan, Haijiang

Abstract

Disclosed are a pixel driving circuit, a pixel driving method and a display panel. The pixel driving circuit includes the first thin film transistor, the second thin film transistor, the third thin film transistor, the fourth thin film transistor, the fifth thin film transistor, the sixth thin film transistor and the capacitor. The pixel driving circuit can be regarded as a 3 T0.5C circuit structure, so that two adjacent light-emitting devices on the same column can share a pixel driving circuit, and the threshold voltage of the driving thin film transistor and a voltage drop of the supply voltage can be compensated, thus the influence of the threshold voltage defect of the driving thin film transistor and the voltage drop of the supply voltage on the current flowing through the light-emitting device can be eliminated, to improve the display uniformity of the self-light-emitting display panel.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

22.

Pixel driving circuit, driving method thereof and display device

      
Application Number 18330273
Grant Number 11942039
Status In Force
Filing Date 2023-06-06
First Publication Date 2024-03-26
Grant Date 2024-03-26
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Zheng, Haoxuan

Abstract

A pixel driving circuit comprises a driving transistor, a storage capacitor, a trigger, a first response switch and a second response switch. The driving transistor has a first terminal connected to a power source, a second terminal connected to a light emitting unit, and a control terminal connected to the storage capacitor, and a second terminal of the storage capacitor is connected to the power source. The first response switch has a first terminal connected to a data line, a control terminal connected to a scan line, a second terminal connected to the first terminal of the storage capacitor, an input terminal of the trigger is connected to the scan line. The second response switch has a first terminal connected to the second terminal of the drive transistor, a second terminal connected to an initial voltage terminal, and a control terminal connected to an output terminal of the trigger.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

23.

DRIVE CURRENT ADJUSTMENT CIRCUIT, COLOR CAST CORRECTION METHOD, DEVICE AND STORAGE MEDIUM

      
Application Number CN2023094616
Publication Number 2024/055619
Status In Force
Filing Date 2023-05-16
Publication Date 2024-03-21
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Kang, Baohong

Abstract

A drive current adjustment circuit, a color cast correction method, a device and a storage medium. The drive current adjustment circuit comprises a current input module (10), a current adjustment module (20) and a current output module (30). The color cast correction method comprises: determining switched-on switch tubes (M1, M2) in a current adjustment module (20) according to a loading operation of resistors (R1, R2) in a current input module (10), and adjusting an input voltage (Vup) on the basis of the switch tubes (M1, M2), so as to obtain a drive voltage (S10); and outputting the drive voltage to a source electrode of a first transistor (T1) of a current output module (30), and compensating for a drive current, which is outputted to a light-emitting diode (OLED) of the current output module (30) via the first transistor (T1), so as to correct the color cast of the light-emitting diode (OLED).

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

24.

ORGANIC LIGHT-EMITTING DISPLAY PANEL, DISPLAY DEVICE AND DISPLAY PANEL ENCAPSULATION METHOD

      
Application Number CN2023095088
Publication Number 2024/055621
Status In Force
Filing Date 2023-05-18
Publication Date 2024-03-21
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Geng, Miao
  • Yuan, Haijiang

Abstract

An organic light-emitting display panel (100), a display device (10), and a display panel encapsulation method. The organic light-emitting display panel (100) comprises a cover plate (110), a substrate (120), an encapsulation layer (130), and a touch circuit (140). The edge of the cover plate (110) is provided with a touch bonding pin (141). The touch bonding pin (141) is connected to the touch circuit (140), and two sides of the touch binding pin (141) are respectively provided with multiple shielding terminals (150). The touch bonding pin (141) and the shielding terminal (150) are arranged in correspondence to the encapsulation layer (130).

IPC Classes  ?

  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

25.

DISPLAY PANEL, METHOD OF MANUFACTURING DISPLAY PANEL, AND DISPLAY DEVICE

      
Application Number 18092205
Status Pending
Filing Date 2022-12-30
First Publication Date 2024-03-21
Owner HKC CORPORATION LIMITED (China)
Inventor
  • He, Hailong
  • Yuan, Haijiang

Abstract

The disclosure relates to a display panel, a method of manufacturing a display panel, and a display device. The display panel includes a first polarizer, an array substrate and a color film substrate that are sequentially stacked. The array substrate includes a binding region. A first sealing adhesive is filled between the binding region and the first polarizer, covers an end of a flexible circuit board away from a mainboard, and covers the binding region, which avoids using a decorative member, reduces a wide frame of a fourth side of the display panel, and increases a real frameless display effect.

IPC Classes  ?

  • G02F 1/1339 - Gaskets; Spacers; Sealing of cells
  • G02F 1/1333 - Constructional arrangements
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F 1/1345 - Conductors connecting electrodes to cell terminals

26.

THIN FILM TRANSISTOR STRUCTURE, DISPLAY PANEL AND DISPLAY DEVICE

      
Application Number 18327217
Status Pending
Filing Date 2023-06-01
First Publication Date 2024-03-14
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Yang, Keming
  • Xu, Yizhen
  • Ren, Chunhui
  • Jiang, Feng
  • He, Liu
  • Leng, Qiang
  • Li, Rongrong

Abstract

Disclosed are a thin film transistor structure, a display panel and a display device. The thin film transistor structure includes a base, a source electrode, a drain electrode configured to connect to a pixel electrode and a grid electrode. The source electrode, the drain electrode and the grid electrode are provided on the base. and a channel is formed between the source electrode and the drain electrode. The thin film transistor structure further includes an insulating layer and a slow-release electrode. The insulating layer is provided on a side of the source electrode and the drain electrode, and filled in the channel. The slow-release electrode is provided in the insulating layer. At least a part of the slow-release electrode is provided inside the channel.

IPC Classes  ?

  • H01L 29/786 - Thin-film transistors
  • G02F 1/1362 - Active matrix addressed cells
  • G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device
  • H01L 29/417 - Electrodes characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched

27.

DRIVING CIRCUIT, DRIVING METHOD, AND DISPLAY PANEL

      
Application Number 18339051
Status Pending
Filing Date 2023-06-21
First Publication Date 2024-03-14
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Kang, Baohong

Abstract

Disclosed are a driving circuit, a driving method, and a display panel. The method includes: turning on the first thin film transistor to control the voltage of the first node to be an initialization voltage; then controlling the voltage of the second node to be a threshold voltage based on the respective voltage difference between the initialization voltage and the turned-on second and the fourth thin film transistor; turning on the third thin film transistor to compensate the threshold voltage to obtain a driving voltage; turning on the fifth thin film transistor to access the driving current by the driving voltage, the driving current is controlled to pass through the turned-on sixth thin film transistor to drive the light-emitting diode.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

28.

DISPLAY PANEL AND DISPLAY DEVICE

      
Application Number 18355643
Status Pending
Filing Date 2023-07-20
First Publication Date 2024-03-14
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Xu, Liao
  • Kang, Baohong

Abstract

A display panel and a display device, related to the field of display technology. The display panel includes a first sub-pixel, a first pixel circuit, a second sub-pixel and a second pixel circuit. The first sub-pixel and the second sub-pixel have the same luminous color. When the display panel is configured to display a same frame of image, the first sub-pixel is driven by the first pixel circuit to emit light, or the second sub-pixel is driven by the second pixel circuit to emit light. In this case, when multiple frames of images are continuously displayed by the display panel, the first sub-pixel and the second sub-pixel can emit light alternately, such that the service life of the display panel can be prolonged, and the performance and competitiveness of the product can be improved.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • H10K 59/121 - Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements

29.

DRIVING CIRCUIT, DRIVING METHOD, AND DISPLAY PANEL

      
Application Number CN2023094615
Publication Number 2024/051204
Status In Force
Filing Date 2023-05-16
Publication Date 2024-03-14
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Kang, Baohong

Abstract

A driving circuit, a driving method, and a display panel. The driving method comprises: after a first thin-film transistor (T1) is turned on and the voltage at a first node (A) is controlled to be an initialization voltage (Vref), controlling the voltage at a second node (B) to be a threshold voltage on the basis of the initialization voltage (Vref) and respective voltage differences of a second thin-film transistor (T2) and a fourth thin-film transistor (T4), which are turned on; turning on a third thin-film transistor (T3) and compensating for the threshold voltage to obtain a driving voltage; turning on a fifth thin-film transistor (T5) by means of the driving voltage to input a driving current; and controlling the driving current to flow through a sixth thin-film transistor (T6), which is turned on, so as to drive a light-emitting diode (D1).

IPC Classes  ?

  • G09G 3/3225 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix

30.

DRIVING METHOD AND CIRCUIT FOR DISPLAY PANEL, AND DISPLAY APPARATUS

      
Application Number CN2023099938
Publication Number 2024/051243
Status In Force
Filing Date 2023-06-13
Publication Date 2024-03-14
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhu, Long
  • Yuan, Haijiang

Abstract

A driving method and circuit for a display panel (1), and a display apparatus. In the driving method for the display panel (1), a bandpoint voltage is first measured and a voltage difference between the bandpoint voltage and a common electrode voltage is calculated; and when the voltage difference between the bandpoint voltage and the common electrode voltage is less than a preset voltage difference, it is indicated that the display panel (1) has the problem of bright and dark lines, a data voltage waveform exhibits climbing, and the charging rate of blue pixels or green pixels is insufficient. At this time, by raising the bandpoint voltage, i.e., raising the charging voltage of red pixels, the charging loss during a climbing process is reduced, and the charging rate is improved, thus improving the bright and dark lines of the display panel (1), and enhancing the display effect.

IPC Classes  ?

  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

31.

DRIVE CURRENT REGULATING CIRCUIT, COLOR DEVIATION CORRECTION METHOD, DEVICE AND STORAGE MEDIUM

      
Application Number 18332229
Status Pending
Filing Date 2023-06-09
First Publication Date 2024-03-14
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Kang, Baohong

Abstract

Disclosed are a drive current regulating circuit, a color deviation correction method, a display device and a storage medium. The color deviation correction method includes: determining that the switching tube is turned on in the current regulating module in response to that a resistor in the current input module is turned on, and regulating the input voltage in response to that the switching tube is turned on to obtain a drive voltage, and outputting the drive voltage to a source of the first transistor in the current output module, and compensating for a drive current of the light-emitting diode in the current output module output from the first transistor, to correct a color deviation of the light-emitting diode.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

32.

DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF

      
Application Number 18336086
Status Pending
Filing Date 2023-06-16
First Publication Date 2024-03-14
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Huang, Hao
  • Li, Rongrong

Abstract

The present disclosure provides a display device and a manufacturing method thereof. The display device includes a display module and a function module. The display module includes a first substrate and a plurality of light emitting units. The plurality of light emitting units are located on a side of the first substrate. A light emitting direction of the light emitting units are oriented towards the first substrate. The function module is located on a surface of the first substrate away from the light emitting units. The function module and the light emitting units share the first substrate. A surface of the function module close to the first substrate is in direct contact with the surface of the first substrate away from the light emitting units.

IPC Classes  ?

  • G02F 1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
  • G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices all the devices being of a type provided for in the same subgroup of groups , or in a single subclass of , , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group

33.

DRIVING METHOD AND DRIVING CIRCUIT OF DISPLAY PANEL, AND DISPLAY DEVICE

      
Application Number 18337607
Status Pending
Filing Date 2023-06-20
First Publication Date 2024-03-14
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhu, Long
  • Yuan, Haijiang

Abstract

A driving method and a driving circuit for a display panel, and a display device. In the driving method, a binding-point voltage is first detected and a voltage difference between the binding-point voltage and a common-electrode voltage is obtained through a calculation. In case that the voltage difference between the binding-point voltage and the common-electrode voltage is smaller than a preset voltage difference, an existence of a problem of bright and dark lines on the display panel is indicated, the data voltage waveform has a ramp-up, and a charging rate of a blue pixel or a green pixel is insufficient, in this case, the binding-point voltage, i.e., a charging voltage of the red pixel is boosted to reduce a charging loss during a ramp-up process, and to increase the charging rate, so that the bright and dark lines of the display panel can be improved, thereby improving the display effect.

IPC Classes  ?

  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

34.

PIXEL DRIVING CIRCUIT AND ELECTROWETTING DISPLAY

      
Application Number 18513646
Status Pending
Filing Date 2023-11-20
First Publication Date 2024-03-14
Owner
  • Mianyang HKC Optoelectronics Technology Co., Ltd. (China)
  • HKC CORPORATION LIMITED (China)
Inventor
  • Fan, Tao
  • Yuan, Haijiang

Abstract

The pixel driving circuit includes a sequential control unit, a first switch unit, a second switch unit, and a power supply unit. The power supply unit provides a constant driving voltage. In one control period, a voltage difference between a first electrode and a second electrode of the electrowetting pixel device is flipped to prevent the first electrode and the second electrode of the electrowetting pixel device from problems of charge trapping and ink splitting due to charge accumulation.

IPC Classes  ?

  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source

35.

PIXEL CIRCUIT, DISPLAY PANEL AND DISPLAY APPARATUS

      
Application Number CN2023093568
Publication Number 2024/051200
Status In Force
Filing Date 2023-05-11
Publication Date 2024-03-14
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Kang, Baohong

Abstract

The present application relates to a pixel circuit, a display panel, and a display apparatus. A first transistor (41) of the pixel circuit (40) receives a data signal (Data) and a first scanning signal (Scan1), and the first scanning signal (Scan1) controls the first transistor (41) to be turned on or turned off. A third transistor (44) receives a second power supply voltage (VDD), and a light-emitting element (45) receives a first power supply voltage (VSS). A second transistor (42) and the third transistor (44) of the pixel circuit (40) are in mirror connection with respect to a storage capacitor (43), optimizing and improving the structure of the pixel circuit (40), and preventing uneven brightness or image retention of displayed images of display panels.

IPC Classes  ?

  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]

36.

DISPLAY CIRCUIT OF SPECIAL-SHAPED SCREEN AND DISPLAY DEVICE

      
Application Number CN2023094633
Publication Number 2024/051205
Status In Force
Filing Date 2023-05-17
Publication Date 2024-03-14
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Shen, Tingting
  • Li, Rongrong

Abstract

A display circuit (22) of a special-shaped screen and a display device (20), capable of effectively weakening the jagged effect during the display of a special-shaped screen and improving the display effect of the special-shaped screen. The display circuit (22) of the special-shaped screen comprises: a plurality of pixel circuits (10) arranged in a special-shaped region (A) of the special-shaped screen in a non-rectangular array, the pixel circuits (10) located at both ends of each row of the plurality of pixel circuits (10) being edge pixel circuits, wherein one of two adjacent edge pixel circuits is connected to an Nth-level gate signal line, and the other one of the two adjacent edge pixel circuits is connected to an (N+1)th-level gate signal line, N being a natural number greater than 0; and a voltage-dividing circuit (13) respectively connected to the two adjacent edge pixel circuits, so that the storage voltages of the two adjacent edge pixel circuits are equal, a control end of the voltage-dividing circuit (13) being connected to an (N+M)th-level gate signal line, M being a natural number greater than 2.

IPC Classes  ?

  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

37.

DISPLAY DEVICE AND PREPARATION METHOD THEREFOR, AND ELECTRONIC APPARATUS

      
Application Number CN2023100191
Publication Number 2024/051251
Status In Force
Filing Date 2023-06-14
Publication Date 2024-03-14
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Huang, Hao
  • Li, Rongrong

Abstract

A display device and a preparation method therefor. The display device (1) comprises a display module (11) and a function module (12). The display module (11) comprises a first substrate (111) and a plurality of light-emitting units (112). The plurality of light-emitting units (112) are arranged on one side of the first substrate (111), and the light-emitting units (112) emit light towards the first substrate (111). The function module (12) is arranged on the side surface of the first substrate (111) facing away from the light-emitting units (112). The function module (12) and the light-emitting units (112) share the first substrate (111), and the surface of the function module (12) close to the first substrate (111) is in direct contact with the surface of the first substrate (111) facing away from the light-emitting unit (112).

IPC Classes  ?

  • G09F 9/33 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
  • G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells

38.

Backlight module and display apparatus

      
Application Number 18343177
Grant Number 11929044
Status In Force
Filing Date 2023-06-28
First Publication Date 2024-03-12
Grant Date 2024-03-12
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Qiu, Bin
  • Li, Rongrong

Abstract

The disclosure provides a backlight module. The backlight module has a first light-emitting region and a second light-emitting region encircling the first light-emitting region. The backlight module further includes at least one first light-emitting module and at least one second light-emitting module, the at least one second light-emitting module is arranged on a peripheral side of the first light-emitting module, the at least one first light-emitting module is located in the first light-emitting region, and the at least one second light-emitting module is located in the second light-emitting region. The first light-emitting module includes multiple first light strings, the second light-emitting module includes multiple second light strings, and the multiple first light strings has a layout density greater than the multiple second light strings.

IPC Classes  ?

  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source

39.

PIXEL CIRCUIT, DISPLAY PANEL, AND DISPLAY APPARATUS

      
Application Number CN2022137569
Publication Number 2024/045406
Status In Force
Filing Date 2022-12-08
Publication Date 2024-03-07
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Wang, Danrong
  • He, Tian
  • Wang, Mengting
  • Cao, Xue
  • Jiu, Kaikai
  • Li, Xiaobing
  • Fu, Gangwei
  • Zheng, Haoxuan

Abstract

The present application provides a pixel circuit (110), a display panel (10), and a display apparatus. The pixel circuit (110) comprises: a light-emitting unit (113); a drive transistor (111) driving the light-emitting unit (113) to emit light; a light-emitting control subcircuit (112) controlling the light-emitting unit (113) to emit light; a first reset subcircuit (114) writing a reference voltage into a gate of the drive transistor (111) and an energy storage element (117); a switch subcircuit (115) changing a gate voltage of the drive transistor (111); a second reset subcircuit (116) responding to a first reset signal; the energy storage element (117) changing the gate voltage of the drive transistor (111); a third reset subcircuit (118) responding to a second reset signal; and a data write subcircuit (119) writing a data voltage into the energy storage element (117). The present application eliminates the effect of a threshold voltage on a drive current, and improves the overall brightness uniformity and stability of display apparatuses.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

40.

VOLTAGE REGULATING CIRCUIT AND DISPLAY PANEL

      
Application Number CN2022142430
Publication Number 2024/045443
Status In Force
Filing Date 2022-12-27
Publication Date 2024-03-07
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Kang, Baohong

Abstract

A voltage regulating circuit and a display panel, relating to the technical field of display. The voltage regulating circuit comprises: a light-emitting module (10), a driving module (20), a comparison module (30), a selection module (40), a first switch module (50) and a second switch module (60). The driving module (20) is used for providing a driving voltage (Vdd) to the light-emitting module (10). The comparison module (30) is used for comparing the driving voltage (Vdd) with a reference voltage (Vref) and generating an output signal. The selection module (40) is used for outputting a forward high voltage (VGH) or a reverse low voltage (VGL).

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

41.

GATE DRIVE CIRCUIT AND DISPLAY APPARATUS

      
Application Number CN2022143459
Publication Number 2024/045452
Status In Force
Filing Date 2022-12-29
Publication Date 2024-03-07
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Shen, Tingting
  • Li, Rongrong

Abstract

A gate drive circuit and a display apparatus. The gate drive circuit comprises: an output module (10), a coupling capacitor C, a pre-charging module (20) and a boost module (30), wherein the output module (10) is used for outputting a gate drive signal Gn; a first end of the coupling capacitor C is connected to the output module (10); the pre-charging module (20) is connected to the first end of the coupling capacitor C, the pre-charging module (20) is used for providing a first voltage Vdd for the first end of the coupling capacitor C, and the output module (10) outputs the gate drive signal Gn in response to the first voltage Vdd; and the boost module (30) is connected to a second end of the coupling capacitor C, and the boost module (30) is used for providing a second voltage for the second end of the coupling capacitor C, so as to couple and boost the first voltage Vdd. By means of the present drive circuit, the influence of aging of a TFT device can be reduced.

IPC Classes  ?

  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

42.

DRIVE CIRCUIT AND DISPLAY PANEL

      
Application Number CN2022142985
Publication Number 2024/045449
Status In Force
Filing Date 2022-12-28
Publication Date 2024-03-07
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Kang, Baohong

Abstract

A drive circuit and a display panel (100). The drive circuit comprises a light emission module (10), a switch module (20), a data drive module (30), a protection module (40) and a compensation module (50), wherein an output end of the switch module (20) is connected to the light emission module (10), an output end of the data drive module (30) is connected to an input end of the switch module (20), an output end of the protection module (40) is connected to the data drive module (30), and an output end of the compensation module (50) is connected to the output end of the data drive module (30) and the input end of the switch module (20).

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

43.

E-INK SCREEN AND CONTROL METHOD AND APPARATUS THEREFOR, AND COMPUTER READABLE STORAGE MEDIUM

      
Application Number CN2022143541
Publication Number 2024/045453
Status In Force
Filing Date 2022-12-29
Publication Date 2024-03-07
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Mancheng
  • Tang, Hao
  • Kang, Baohong

Abstract

An E-ink screen (10) and a control method and apparatus therefor, and a computer readable storage medium. The control method for the E-ink screen (10) comprises: within a preset time period, enabling a difference value between the number of times of a positive voltage refresh process and the number of times of a negative voltage refresh process corresponding to a target capsule (111) to be not greater than a preset difference value threshold. The positive voltage refresh process comprises: increasing the amplitude of a control voltage signal to a preset maximum positive voltage value, and then decreasing the amplitude of the control voltage signal, such that the target capsule (111) performs color display on the basis of the control voltage signal to complete refreshing of one frame. The negative voltage refresh process comprises: decreasing the amplitude of the control voltage signal to a preset maximum negative voltage value, and then increasing the amplitude of the control voltage signal, such that the target capsule (111) performs color display on the basis of the control voltage signal to complete refreshing of one frame. On the basis of the method, the afterimages of the E-ink screen (10) can be effectively reduced, and the display effect of the E-ink screen (10) is improved.

IPC Classes  ?

  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
  • G02F 1/1685 - Operation of cells; Circuit arrangements affecting the entire cell
  • G02F 1/16757 - Microcapsules

44.

Growth substrate, display panel, and manufacturing method of display panel

      
Application Number 18331279
Grant Number 11923489
Status In Force
Filing Date 2023-06-08
First Publication Date 2024-03-05
Grant Date 2024-03-05
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Pu, Yang
  • Kang, Baohong

Abstract

A growth substrate and the display panel include a substrate, including chip growth regions arranged at intervals and in an array and a non-growth region located among chip growth regions. The growth substrate includes a refraction structure disposed on the substrate. An orthographic projection of the refraction structure on the substrate covers the non-growth region without overlapping with at least parts of the chip growth regions. The refraction structure is configured to refract light corresponding to the non-growth region to positions corresponding to the chip growth regions. The substrate has a first surface and a second surface and light emitting chips are grown in the chip growth regions of the first surface. The refraction structure is disposed on the second surface, an orthographic projection on the substrate covers the non-growth region, and one side, away from the substrate, of the refraction structure is a light incident side.

IPC Classes  ?

  • H01L 33/58 - Optical field-shaping elements
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices all the devices being of a type provided for in the same subgroup of groups , or in a single subclass of , , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group

45.

Array substrate and display panel

      
Application Number 18334950
Grant Number 11922896
Status In Force
Filing Date 2023-06-14
First Publication Date 2024-03-05
Grant Date 2024-03-05
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Li, Zhiwei
  • Li, Rongrong

Abstract

An array substrate is provided. The array substrate includes a first surface and a second surface opposite to the first surface. The array substrate further includes multiple first common lines and multiple second common lines. The multiple first common lines extend along a first direction and are arranged on the first surface at intervals of a first distance along a second direction, the multiple second common lines extend along the second direction and are arranged on the second surface at intervals of a second distance along the first direction. The first common line and the second common line are electrically connected to each other through the array substrate, and the first common line and the second common line are configured to transmit a common voltage to the pixel unit, the pixel unit is driven to display an image by the common voltage and the data signal.

IPC Classes  ?

  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals

46.

Irregularly-shaped display panel and display device

      
Application Number 18145808
Grant Number 11953792
Status In Force
Filing Date 2022-12-22
First Publication Date 2024-02-29
Grant Date 2024-04-09
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Lv, Li
  • Shen, Tingting
  • Liu, Yunyang
  • Xu, Yuchun
  • Zhang, Guangchen
  • Li, Zhiwei
  • Yuan, Haijiang

Abstract

The irregularly-shaped display panel comprises a plurality of pixel units arranged in an array and a shielding layer. some of the pixel units are shielded by the shielding layer to form irregularly-shaped pixel units, and each of the irregularly-shaped pixel unit at least comprises a first irregularly-shaped pixel unit; in the first irregularly-shaped pixel unit, the areas of opening regions of at least two sub-pixels shielded by the shielding layer are different, and the sub-pixel having a larger area of an opening region shielded by the shielding layer has a greater pixel pressure difference.

IPC Classes  ?

  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F 1/1362 - Active matrix addressed cells
  • G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device

47.

DISPLAY PANEL AND PREPARATION METHOD THEREOF

      
Application Number 18386274
Status Pending
Filing Date 2023-11-02
First Publication Date 2024-02-29
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Li, Zeyao
  • Zheng, Haoxuan

Abstract

The present application provides a display panel and a method for making the display panel. The display panel includes a substrate, a driving circuit layer, multiple light emitting units, and a black matrix layer. The black matrix layer is located between two adjacent light emitting units. The multiple light emitting units are staggered with driving elements, common electrodes and signal lines. A light emitting element emits light towards a quantum dot layer, thereby exciting the quantum dot layer to emit light. The embodiments of the present application provide a full-color display panel emitting light towards the substrate, and improve electrodes of the driving transistor and/or electrodes of the switching transistor.

IPC Classes  ?

  • H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
  • H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/50 - Wavelength conversion elements

48.

Pixel circuit having a reset sub-circuit for resetting a plurality of sub-pixels and driving method thereof

      
Application Number 18069376
Grant Number 11961482
Status In Force
Filing Date 2022-12-21
First Publication Date 2024-02-29
Grant Date 2024-04-16
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Lu, Zhaoyang
  • Zheng, Haoxuan

Abstract

A pixel circuit and a pixel drive method. The pixel circuit includes at least two sub-pixel drive sub-circuits, the sub-pixel drive sub-circuits include an input component, a compensation component, a drive component, a first light-emitting control component and a first light-emitting element, the input component is configured to receive a data voltage signal and a first scan signal. The compensation component is configured to receive a second scan signal. The first light-emitting control component is configured to receive a power supply signal and a first control signal. An output of the drive component in the plurality of sub-pixel drive sub-circuits is coupled to an output of a first reset sub-circuit, and the first reset sub-circuit is configured to receive an initial voltage signal and a third scan signal.

IPC Classes  ?

  • G09G 3/3291 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] - Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
  • G09G 3/3266 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] - Details of drivers for scan electrodes

49.

BACKLIGHT MODULE AND DISPLAY DEVICE

      
Application Number CN2022135752
Publication Number 2024/040780
Status In Force
Filing Date 2022-12-01
Publication Date 2024-02-29
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhao, Junyi
  • Kang, Baohong

Abstract

Disclosed in the present application are a backlight module (20) and a display device (10). The backlight module (20) comprises a supporting frame (100), a lamp plate (200) and a plurality of LEDs (300), wherein the supporting frame (100) is provided with a lamp plate mounting recess (110); a heat dissipation port (120) is formed in each of at least two sides of the supporting frame (100); the lamp plate (200) is mounted in the lamp plate mounting recess (110); a cavity (210) is formed inside the lamp plate (200), and the cavity (210) is in communication with the heat dissipation ports (120); the LEDs (300) are arranged on the lamp plate (200); pins of the LEDs (300) extend into the cavity (210); and the supporting frame (100) and the lamp plate (200) form a supporting structure of the backlight module (20).

IPC Classes  ?

50.

ARRAY SUBSTRATE, DISPLAY PANEL, AND DISPLAY APPARATUS

      
Application Number CN2022142462
Publication Number 2024/040832
Status In Force
Filing Date 2022-12-27
Publication Date 2024-02-29
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Chang, Hongyan
  • Kang, Baohong

Abstract

An array substrate (100), a display panel and a display apparatus. The array substrate (100) comprises a base substrate (10). The base substrate (10) comprises a display area (1) and a measurement area (3) located at the periphery of the display area (1). The display area (1) is provided with a plurality of color resists arranged in a first direction (X), one column of color resists among any two adjacent columns of color resists extending in a second direction (Y) to the measurement area (3), so as to form redundant color resists (31) in the measurement area (3), and the first direction (X) and the second direction (Y) being perpendicular to each other. The measurement area (3) is further provided with a reference identifier, and the reference identifier is arranged to determine an offset in the first direction (X) of the redundant color resists (31) relative to the reference identifier. The present application solves the problem in the prior art that widths and offsets of color resist blocks in display areas (1) cannot be accurately measured.

IPC Classes  ?

51.

DRIVING CIRCUIT OF DISPLAY PANEL, AND DISPLAY APPARATUS

      
Application Number CN2022142509
Publication Number 2024/040833
Status In Force
Filing Date 2022-12-27
Publication Date 2024-02-29
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Li, Rongrong

Abstract

A driving circuit (2000) of a display panel, and a display apparatus (1), the driving circuit (2000) comprising voltage output modules (10, 10', 11). The voltage output modules (10, 10', 11) comprise voltage input ends (210, 211), voltage output ends (220, 221), detection modules (300, 301) and isolation modules (200, 201). The detection modules (300, 301) are electrically connected to the voltage input ends (210, 211), and the detection modules (300, 301) are used for outputting second control signals when voltage signals received by the voltage input ends (210, 211) are less than a preset voltage threshold. In response to the second control signals, the isolation modules (200, 201) cut off the electrical connection between the voltage input ends (210, 211) and the voltage output ends (220, 221), which can prevent the screen flickering phenomena during startup and shutdown.

IPC Classes  ?

  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]

52.

DRIVE CIRCUIT AND DISPLAY PANEL

      
Application Number 18066853
Status Pending
Filing Date 2022-12-15
First Publication Date 2024-02-29
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Kang, Baohong

Abstract

Disclosed are a drive circuit and a display panel, relates to the technical field of display. The drive circuit includes a light-emitting module, a switch module, a data drive module, a protection module and a compensation module, an output end of the switch module is connected with the light-emitting module, the switch module is accessed to a first scan signal, the switch module is for switching between an on-state and an off-state under a control of the first scan signal; and an output end of the data driver is connected with an input end of the switch module, and the data drive module is accessed to a data drive voltage and the first scan signal, the data drive module is for transporting the data drive voltage to the light-emitting module through the switch module under the control of the first scan signal.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

53.

VOLTAGE STABILIZING CIRCUIT AND DISPLAY PANEL

      
Application Number 18068326
Status Pending
Filing Date 2022-12-19
First Publication Date 2024-02-29
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Kang, Baohong

Abstract

Disclosed are a voltage stabilizing circuit and a display panel. A voltage stabilizing circuit includes a light emitting module, a driving module, a comparison module, a selection module, a first switch module and a second switch module. Since the delay of on-off of each LED in the display panel is difficult to be detected by the eyes, the present application combines the above modules, can change the on-off timing of the LED in the entire display panel by setting the reference voltage as the judgment threshold of the driving voltage, to provide more ample time for the driving voltage of the remote end to climb or fall, to turn the LED on and light it up until the driving voltage meets the conditions.

IPC Classes  ?

  • G05F 1/59 - Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices including plural semiconductor devices as final control devices for a single load
  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

54.

DISPLAY DEVICE, DISPLAY PANEL AND METHOD OF PREPARING THE SAME

      
Application Number 18084476
Status Pending
Filing Date 2022-12-19
First Publication Date 2024-02-29
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Pu, Yang
  • Zheng, Haoxuan

Abstract

A display device includes a substrate, a display unit, a binding unit, and an encapsulation layer. The substrate includes an effective display region and a non-display region adjacent to the effective display region, and includes a silicon-containing compound material. The display unit is arranged in the effective display region. The binding unit is arranged in the non-display region and includes a binding portion and signal connection lines. Two ends of the signal connection line are connected to the display unit and the binding portion, respectively. The encapsulation layer wraps the display unit and a part of the signal connection lines The encapsulation layer covers a portion of each of the plurality of signal connection lines, at least a portion of each of the plurality of signal connection lines disposed inside a region covered by the encapsulation layer is configured as a heavily doped semiconductor connection line.

IPC Classes  ?

  • H10K 50/844 - Encapsulations
  • H10K 71/00 - Manufacture or treatment specially adapted for the organic devices covered by this subclass

55.

DISPLAY PANEL AND MANUFACTURING METHOD THEREOF

      
Application Number 18145641
Status Pending
Filing Date 2022-12-22
First Publication Date 2024-02-29
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Lu, Jinsong
  • Sun, Song
  • Xiong, Qin
  • Liu, Kaijun
  • Zheng, Haoxuan

Abstract

The display panel includes: a first substrate and a second substrate disposed opposite to the first substrate, wherein an electrophoresis layer and electrophoresis ions are disposed on the first substrate, the electrophoresis layer is located between the second substrate and the first substrate, the electrophoresis layer is provided with a plurality of electrophoresis tanks arranged in an array, openings of the electrophoresis tanks face the second substrate, and the electrophoresis ions are located in the electrophoresis tanks; and one of the electrophoresis layer and the second substrate is provided with a positioning groove, the other is provided with a positioning block embedded into the positioning groove, and orthographic projections of the positioning groove and the positioning block on the first substrate are at least partially located between orthographic projections of two adjacent electrophoresis tanks on the first substrate. The pressure resistance of the display panel is improved.

IPC Classes  ?

  • G02F 1/167 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
  • G02F 1/16755 - Substrates
  • G02F 1/1679 - Gaskets; Spacers; Sealing of cells; Filling or closing of cells

56.

DRIVING METHOD AND DRIVING DEVICE OF DISPLAY PANEL, AND DISPLAY DEVICE

      
Application Number 18383052
Status Pending
Filing Date 2023-10-24
First Publication Date 2024-02-29
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Mancheng
  • Zheng, Haoxuan

Abstract

A driving method and a driving device of a display panel, and a display device are provided. The driving method includes: receiving a video signal transmitted by an external processor; transmitting a first scanning signal to a current row of pixels in response to a first gray-scale value of each of the current row of pixels of the display panel corresponding to the video signal being greater than a preset gray-scale value; transmitting a second scanning signal to a next row of pixels of the display panel; and transmitting, based on the first gray-scale value, a data signal to the display panel and driving the display panel to display the video signal.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

57.

DISPLAY DEVICE AND PREPARATION METHOD THEREFOR

      
Application Number CN2022139866
Publication Number 2024/040811
Status In Force
Filing Date 2022-12-19
Publication Date 2024-02-29
Owner HKC CORPORATION LIMITED (China)
Inventor
  • He, Hailong
  • Zheng, Haoxuan

Abstract

A display device (1) and a preparation method therefor. The display device (1) comprises a package member (11) and a plurality of display assemblies (12), wherein the package member (11) comprises a body (111) and a plurality of reinforcing portions (112) arranged at intervals on one side of the body (111), the plurality of reinforcing portions (112) and the body (111) enclosing a plurality of accommodating spaces (11a); each display assembly (12) corresponds to and is fixedly arranged in one accommodating space (11a), and light emitted from the display assembly (12) can pass through the package member (11); and the plurality of display assemblies (12) are fixedly arranged on the package member (11), which has the plurality of accommodating spaces (11a), and each display assembly (12) corresponds to one accommodating space (11a), so that a tiling gap between every two adjacent display assemblies (12) is narrowed, thereby improving the display performance of the display device (1).

IPC Classes  ?

  • G09F 9/302 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
  • G09F 9/33 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

58.

DISPLAY PANEL AND DRIVE SUBSTRATE THEREOF

      
Application Number CN2022143542
Publication Number 2024/040843
Status In Force
Filing Date 2022-12-29
Publication Date 2024-02-29
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Li, Zeyao
  • Li, Rongrong

Abstract

The present application provides a display panel (100) and a drivr substrate (1) thereof. The drive substrate (1) is used for driving an inorganic light-emitting diode to emit light. The drive substrate (1) comprises a substrate (11) as well as a first insulating layer (122), an active layer (123), and an electrode layer (125) which are sequentially arranged on the substrate (11). The electrode layer (125) comprises a source electrode (1251) and a drain electrode (1252) which are arranged in the same layer. A light shielding portion is further comprised. The light shielding portion (13) is located between the electrode layer (125) and the substrate (11) and at least partially overlaps with the electrode layer (125). The light shielding portion (13) is spaced apart from the active layer (123) and penetrates the first insulating layer (122); and/or the light shielding portion (13) is at least partially located on the side of the electrode layer (125) away from the substrate (11) and covers the active layer (123). By means of arranging the light shielding portion (13) around the active layer (123) to shield from light emitted towards the active layer (123), the active layer (123) in the drive substrate (1) is prevented from being illuminated and thus causing changes in the characteristics of a thin film transistor (12).

IPC Classes  ?

  • H01L 29/786 - Thin-film transistors
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • G09F 9/33 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

59.

Power-supply voltage generator for outputting varied voltages to display panel

      
Application Number 18090595
Grant Number 11915654
Status In Force
Filing Date 2022-12-29
First Publication Date 2024-02-27
Grant Date 2024-02-27
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Li, Rongrong

Abstract

A drive circuit of a display panel and a display device are provided in the disclosure. The drive circuit includes a voltage output module. The voltage output module includes a voltage input terminal, a voltage output terminal, a detection module, and an isolation module. The voltage input terminal is configured to receive a voltage signal. The voltage output terminal is electrically coupled with the display panel. The detection module is electrically coupled with the voltage input terminal and configured to determine whether a voltage value of the voltage signal received at the voltage input terminal is greater than or equal to a preset voltage threshold. The detection module is configured to output a second control signal when the voltage value of the voltage signal is less than the preset voltage threshold.

IPC Classes  ?

  • G09G 3/3258 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
  • G09G 3/3291 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] - Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements

60.

Display panel and display device

      
Application Number 18207692
Grant Number 11916053
Status In Force
Filing Date 2023-06-09
First Publication Date 2024-02-27
Grant Date 2024-02-27
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Li, Zeyao
  • Li, Rongrong

Abstract

A display panel and a display device are provided. The display panel includes a drive substrate, a bonding layer, and multiple light-emitting components. The drive substrate includes multiple sets of pads. Each set of pads includes a first pad and a second pad. The bonding layer is arranged on the multiple sets of pads. Each light-emitting component includes a semiconductor light-emitting layer, a first electrode, and a second electrode. The first electrode and the second electrode are arranged at opposite ends of the semiconductor light-emitting layer. The first electrode is electrically connected to a corresponding first pad through the bonding layer. The second electrode is electrically connected to a corresponding second pad through the bonding layer. The second electrodes of the adjacent light-emitting components are close to each other. The second electrodes close to each other are shorted through the same bonding layer and/or the same second pad.

IPC Classes  ?

  • H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices the devices being of types provided for in two or more different main groups of groups , or in a single subclass of , , e.g. forming hybrid circuits
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices all the devices being of a type provided for in the same subgroup of groups , or in a single subclass of , , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

61.

DISPLAY PANEL AND DISPLAY APPARATUS

      
Application Number CN2022135794
Publication Number 2024/036813
Status In Force
Filing Date 2022-12-01
Publication Date 2024-02-22
Owner
  • BEIHAI HKC OPTOELECTRONICS TECHNOLOGY CO., LTD. (China)
  • HKC CORPORATION LIMITED (China)
Inventor
  • Chang, Hongyan
  • Huang, Shishuai
  • Han, Bing
  • Li, Zhenya
  • Zheng, Jiayang
  • Hu, Yunqin
  • Wang, Xiaojie
  • Li, Rongrong

Abstract

The present application relates to the technical field of display. Disclosed are a display panel (10) and a display apparatus. The display panel (10) comprises a plurality of pixel electrodes (128), a common electrode (102), a common signal line (130), a detection line (150), and a processor (18). The detection line (150) is connected between a detection end of the processor (18) and the common signal line (130). The processor (18) is used for outputting a preset electrical signal by means of an output end within a first time period, and measuring the voltage of the common signal line (130) by means of the detection end; and the processor (18) is further used for outputting a compensation electrical signal by means of the output end within a second time period according to the voltage of the common signal line (130). In this way, a voltage change in a common electrode (102) of an array substrate (12) and a common electrode (102) of a color filter substrate (14) can be detected and compensated, such that the problem of horizontal crosstalk of the display panel (10) can be solved, and a display effect of the display panel (10) is improved.

IPC Classes  ?

  • G02F 1/1362 - Active matrix addressed cells
  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
  • G02F 1/133 - Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
  • G02F 1/1343 - Electrodes

62.

PEEP-PROOF CONTROL METHOD FOR LIQUID CRYSTAL DISPLAY DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE

      
Application Number CN2022142111
Publication Number 2024/036862
Status In Force
Filing Date 2022-12-26
Publication Date 2024-02-22
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Wan, Ye
  • Kang, Baohong

Abstract

A peep-proof control method for a liquid crystal display device, and a liquid crystal display device. The method comprises: receiving and detecting a picture display signal, which is required by a liquid crystal display device, wherein the picture display signal comprises a brightness signal and a peep-proof signal; and if it is detected that the peep-proof signal in the picture display signal is local peep-proof information, controlling, according to the brightness signal, a first switching occasion of a backlight working state of a lamp panel (20) in the liquid crystal display device to adapt to a second switching occasion of a diaphragm working state of an electronic-control liquid crystal diaphragm (50), so as to implement local peep-proof display of the liquid crystal display device.

IPC Classes  ?

  • G02F 1/133 - Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements

63.

DRIVING CIRCUIT, DRIVING METHOD, AND DISPLAY APPARATUS

      
Application Number CN2022143457
Publication Number 2024/036869
Status In Force
Filing Date 2022-12-29
Publication Date 2024-02-22
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Ran, Ruidi
  • Zhou, Luhong
  • Zheng, Haoxuan

Abstract

A driving circuit, a driving method, and a display apparatus. The driving circuit comprises a control chip (100) and a driving chip (200) connected to each other. The driving circuit further comprises a sampling module (300) and a processing module (400). The sampling module (300) is used for collecting the output current of the driving chip (200) and converting same into a first voltage. The processing module (400) comprises a comparison unit (410), an analysis unit (420) and a compensation unit (430). The comparison unit (410) is used for comparing the first voltage with a threshold voltage. The analysis unit (420) is used for analyzing the comparison result of the comparison unit (410). The compensation unit (430) is used for updating a compensation parameter according to the analysis result of the analysis unit (420) and outputting the compensation parameter to the control chip (100). The driving circuit can mitigate or eliminate the regional mura phenomenon.

IPC Classes  ?

  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

64.

DRIVING COMPENSATION CIRCUIT, COMPENSATION METHOD, AND DISPLAY DEVICE

      
Application Number CN2022142510
Publication Number 2024/036864
Status In Force
Filing Date 2022-12-27
Publication Date 2024-02-22
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Huang, Peidi
  • Zheng, Haoxuan

Abstract

A driving compensation circuit (100, 200, 300), a compensation method, and a display device (1000), capable of avoiding the problem of afterimages in a display picture caused by different aging rates of different luminescent materials. A timing control module (40) of the driving compensation circuit (100, 200, 300) acquires display times of a plurality of display blocks of a display panel (10); a control module (50) obtains brightness attenuation differences according to the display times; a data compensation module (60) obtains compensation data according to the brightness attenuation differences; the timing control module (40) controls a driving module (70) according to the brightness attenuation differences to perform display compensation on corresponding display blocks according to the compensation data when the display panel (10) is in an unused state.

IPC Classes  ?

  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

65.

DRIVING METHOD AND MODULE FOR ELECTROPHORETIC DISPLAY PIXEL, AND DISPLAY DEVICE

      
Application Number CN2022143414
Publication Number 2024/036868
Status In Force
Filing Date 2022-12-29
Publication Date 2024-02-22
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Mancheng
  • Tang, Hao
  • Li, Rongrong

Abstract

A driving method and driving module for an electrophoretic display pixel, and a display device. The method comprises: acquiring a target grayscale value of an electrophoretic display pixel, determining a target pulse width according to the size of the target grayscale value, and generating a single-pulse data signal according to the target pulse width, wherein the single-pulse data signal is used for driving electrophoretic particles to move to a target position within a pulse duration of the single-pulse data signal; determining a single-pulse scanning signal according to the single-pulse data signal; and outputting the single-pulse data signal to an input end of a pixel circuit, and outputting the single-pulse scanning signal to a control end of the pixel circuit. The present solution can reduce the power consumption of a pixel scanning display process.

IPC Classes  ?

  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source

66.

Display module and spliced display device

      
Application Number 18365838
Grant Number 11906833
Status In Force
Filing Date 2023-08-04
First Publication Date 2024-02-20
Grant Date 2024-02-20
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhang, Guangchen
  • Liu, Yunyang
  • Shen, Tingting
  • Li, Zhiwei
  • Lv, Li
  • Chen, Ying
  • Kang, Baohong

Abstract

A display module includes a display unit for image displaying and provided with a light-emitting side, the display module further includes an outer encapsulation layer provided on the light-emitting side of the display unit, and is provided to cover at least an edge of the display unit; the outer encapsulation layer is made of self-healing glass material; and a traction assembly including a first connection piece and a second connection piece with magnetic adsorption, the display unit is provided with a splicing portion for splicing the display modules, the first connection piece and the second connection piece are provided in the splicing portion; the first connection piece and the second connection piece are used for providing the outer encapsulation layers of the two spliced display modules with required fusion force when the display modules are spliced.

IPC Classes  ?

  • G02F 1/1333 - Constructional arrangements
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors

67.

Display panel and pixel driving method

      
Application Number 18329036
Grant Number 11908411
Status In Force
Filing Date 2023-06-05
First Publication Date 2024-02-20
Grant Date 2024-02-20
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Fan, Tao
  • Li, Rongrong

Abstract

A display panel includes a plurality of pixel driving circuits arranged in an array along a row direction and a column direction. The display panel further comprises a plurality of first control lines, a plurality of second control lines, a plurality of data lines, and a plurality of power lines. Each of the pixel driving circuits is correspondingly connected to the first control line, the second control line, the data line, and two power lines, and the two power lines comprises a first power line and a second power line. The pixel driving circuit includes: a driving transistor, a storage capacitor, a sampling compensation assembly, a first switch assembly, a second switch assembly and a light emitting device.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/3291 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] - Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements

68.

Pixel driving circuit and display panel

      
Application Number 18340145
Grant Number 11908412
Status In Force
Filing Date 2023-06-23
First Publication Date 2024-02-20
Grant Date 2024-02-20
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Fan, Tao
  • Yuan, Haijiang

Abstract

A pixel driving circuit and a display panel are provided. The pixel driving circuit includes a scan line, a data line, a capacitor, a switch module, and a driving transistor. A scanning voltage is at a first level in a sampling phase and in a light-emitting phase, and at a second level in a data writing phase. A data voltage is at a high level in the sampling phase, and at a low level in the data writing phase and in the light-emitting phase. The capacitor includes a first capacitor-terminal and a second capacitor-terminal. The driving transistor includes a gate terminal electrically connected with the second capacitor-terminal, a source terminal electrically connected with the scan line, and a drain terminal configured to be electrically connected with the gate terminal in the sampling phase and be disconnected from the gate terminal in the data writing phase.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

69.

Display device and display method

      
Application Number 18333883
Grant Number 11908402
Status In Force
Filing Date 2023-06-13
First Publication Date 2024-02-20
Grant Date 2024-02-20
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Li, Jianlei
  • Tao, Zhicheng
  • Kang, Baohong

Abstract

The display device includes: a display panel, having a plurality of pixel assemblies each including a power supply end; a timing control circuit, having a first signal output end configured to output a selection instruction signal, and a second signal output end configured to output a clock signal; and a power circuit, including a voltage generation assembly configured to generate a plurality of step voltages, a voltage selection assembly configured to select at least one step voltage from the plurality of step voltages in response to the selection instruction signal, and a voltage conversion assembly configured to determine a power supply voltage on the basis of the step voltage in response to the clock signal and to output the power supply voltage to the power supply end.

IPC Classes  ?

  • G09G 3/3225 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals

70.

BACKLIGHT MODULE AND DISPLAY DEVICE

      
Application Number 18348339
Status Pending
Filing Date 2023-07-06
First Publication Date 2024-02-15
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Tong, Xiaolan
  • Kang, Baohong

Abstract

Disclosed are a backlight module and a display device. The backlight module comprises a backplane and a plastic frame provided around the side walls of the backplane. Two side opposite walls of the backplane or the plastic frame are respectively provided with conductive sheets insulated from the backplane, so as to form an electric field for attracting foreign matter between the two conductive sheets. The backlight module can continuously and stably absorb dust and other foreign matter during assembly and use, avoiding foreign matter from scratching optical assemblies, ensuring the stability of the display image quality of the display device, and improving product yield.

IPC Classes  ?

  • G02F 1/1333 - Constructional arrangements
  • G02F 1/1345 - Conductors connecting electrodes to cell terminals
  • G02F 1/13357 - Illuminating devices
  • F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems

71.

DISPLAY PANEL ADJUSTMENT METHOD, DISPLAY APPARATUS AND STORAGE MEDIUM

      
Application Number 18256282
Status Pending
Filing Date 2022-06-24
First Publication Date 2024-02-15
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Mancheng
  • Xiong, Zhi
  • Kang, Baohong

Abstract

A display panel adjustment method, display apparatus and storage medium. Detecting whether a persistence is created on a display panel by displaying a preset detection screen, locating all zones where a persistence has appeared in case where the persistence has been created on the display panel, and determining a target gate line which probably causes the persistence to appear on the display panel; by shortening the turn-on time of a target gate line, it is possible to decrease the probability of a parasitic capacitor being formed on the target gate line, or may decrease the charge held in the parasitic capacitor formed on the target gate line, and may further increase the discharge time of the parasitic capacitor, so as to mitigate or eliminate the persistence, and improve the display effect.

IPC Classes  ?

  • G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
  • G06T 7/00 - Image analysis

72.

PIXEL STRUCTURE, DISPLAY PANEL AND DISPLAY DEVICE

      
Application Number 18145342
Status Pending
Filing Date 2022-12-22
First Publication Date 2024-02-08
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Chen, Min
  • Yuan, Haijiang

Abstract

A pixel structure, a display panel and a display device. The pixel structure includes a pixel electrode and a common electrode. The pixel electrode and the common electrode each is one of a pixel electrode and a common electrode. The common electrode includes a plurality of first branch portions. The pixel electrode includes second branch portions and a plurality of trunk portions. The second branch portions and the first branch portions are alternately arranged at intervals. In the present application, portions of the pixel electrode within an orthographic projection range of an offset of a spacer are extended to form a plane by configuring a height of each first trunk portion to be higher than a height of each second trunk portion along a linear direction in which the second branch portions are located, thereby increasing the pressure-bearing capacity of the pixel electrode.

IPC Classes  ?

73.

DISPLAY PANEL AND MANUFACTURING METHOD THEREFOR

      
Application Number CN2022133809
Publication Number 2024/027047
Status In Force
Filing Date 2022-11-23
Publication Date 2024-02-08
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Li, Zeyao
  • Zheng, Haoxuan

Abstract

Provided in the present application are a display panel and a manufacturing method therefor. The display panel comprises a substrate, a driving circuit layer, a planarization layer, a light-emitting element and a first covering layer which are successively stacked. A first electrode and a second electrode of the light-emitting element are electrically connected to a driving element and a common electrode of the driving circuit layer respectively; a first through hole and a second through hole of the first covering layer partially expose the driving element and the common electrode, are arranged at an interval and surround the side wall of the light-emitting element; the two through holes are filled with metal to form a first metal wall and a second metal wall, so that part of emergent light is emitted from one side of the substrate after being reflected by the two metal walls; and the first metal wall is electrically connected to the first electrode and the driving element, and the second metal wall is electrically connected to the second electrode and the common electrode. The display panel can improve the light transmittance and reduce the power consumption.

IPC Classes  ?

  • H01L 33/60 - Reflective elements
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 21/84 - Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being other than a semiconductor body, e.g. being an insulating body

74.

OLED DISPLAY PANEL AND DISPLAY APPARATUS

      
Application Number CN2022135157
Publication Number 2024/027050
Status In Force
Filing Date 2022-11-29
Publication Date 2024-02-08
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Xia, Xingda
  • Yuan, Haijiang

Abstract

The present application relates to the technical field of display. Disclosed are an OLED display panel and a display apparatus. The OLED display panel is provided with a first display area (1). The first display area (1) comprises a light-transmitting area (12) and a plurality of first pixel units (11) arranged in an array, wherein each first pixel unit (11) comprises an anode layer (111), a hole transport layer (112), a laminated light-emitting layer (113), an electron transport layer (114) and a cathode layer (115), which are sequentially arranged in a stacked manner; and the laminated light-emitting layer (113) comprises at least two light-emitting sub-layers (1131) arranged in a stacked manner, and the light-emitting sub-layers (1131) simultaneously emit light when the anode layer (111) and the cathode layer (115) are energized.

IPC Classes  ?

  • H10K 59/12 - Active-matrix OLED [AMOLED] displays

75.

BACKLIGHT MODULE AND DISPLAY DEVICE

      
Application Number CN2022135753
Publication Number 2024/027054
Status In Force
Filing Date 2022-12-01
Publication Date 2024-02-08
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Yang, Xiaohui
  • Kang, Baohong

Abstract

Disclosed are a backlight module (30) and a display device (10). The backlight module (30) comprises a backplane (400) and a light panel (300), wherein the light panel (300) is arranged on the backplane (400), and a cavity is formed between the backplane (400) and the light panel (300). The backlight module (30) further comprises a thermal radiation material layer (600), the thermal radiation material layer (600) being arranged in the cavity and being attached to one side of the light panel (300) facing the backplane (400), and a gap being provided between the thermal radiation material layer (600) and the backplane (400).

IPC Classes  ?

76.

DISPLAY PANEL AND COMPENSATION METHOD THEREFOR

      
Application Number CN2022136432
Publication Number 2024/027061
Status In Force
Filing Date 2022-12-05
Publication Date 2024-02-08
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Xu, Liao
  • Yuan, Haijiang

Abstract

The present application discloses a display panel and a compensation method therefor. The display panel (100) comprises a first base substrate (101), a plurality of active light-emitting units (110) arranged in an array, a detection electrode (120), a detection circuit, and a compensation circuit. The detection electrode (120) and a cathode layer (111) are oppositely arranged and form a capacitor; the detection circuit is used for detecting a voltage signal on the detection electrode (120), calculating a voltage anomaly region of the detection electrode (120), and outputting a compensation signal; and the compensation circuit is used for receiving the compensation signal and performing voltage compensation on a region of the cathode layer (111) corresponding to the voltage anomaly region.

IPC Classes  ?

  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
  • G09G 3/3258 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
  • G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes

77.

ARRAY SUBSTRATE, DISPLAY DEVICE AND DRIVING CIRCUIT

      
Application Number 18086629
Status Pending
Filing Date 2022-12-21
First Publication Date 2024-02-08
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Liu, Yunyang
  • Wang, Jie
  • Xu, Yuchun
  • Lv, Li
  • Zhang, Guanchen
  • Li, Zhiwei
  • Kang, Baohong

Abstract

An array substrate, a display device, and a driving circuit are disclosed. The array substrate includes a substrate, a pixel electrode layer disposed on the substrate, a first insulating layer disposed on the substrate, multiple data lines disposed on the first insulating layer, a second insulating layer disposed on the first insulating layer and covering the data lines, a common electrode layer disposed on the second insulating layer, and multiple data signal cancellation lines disposed between the common electrode layer and the first insulating layer. The common electrode layer includes multiple common shield electrode layers. The data signal cancellation lines are disposed in one-to-one correspondence with the data lines. Along the direction from the pixel electrode layer toward the common electrode layer, one common shield electrode layer covers one respective data signal cancellation line and one respective data line.

IPC Classes  ?

  • G02F 1/1362 - Active matrix addressed cells
  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals

78.

Backlight module and display device

      
Application Number 18088752
Grant Number 11960113
Status In Force
Filing Date 2022-12-26
First Publication Date 2024-02-08
Grant Date 2024-04-16
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Yang, Xiaohui
  • Kang, Baohong

Abstract

A backlight module and a display device are disclosed. The backlight module includes a back plate, a light plate, and a plurality of lamp beads. The light plate is arranged opposite to the back plate. The plurality of lamp beads are arranged on a side of the light plate facing away from the back plate. The back plate includes a back plate body, at least one sunken groove, and a thermally conductive adhesive.

IPC Classes  ?

  • F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors

79.

BACKLIGHT MODULE AND DISPLAY APPARATUS

      
Application Number CN2022137202
Publication Number 2024/027064
Status In Force
Filing Date 2022-12-07
Publication Date 2024-02-08
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Yang, Xiaohui
  • Kang, Baohong

Abstract

The present application discloses a backlight module (100) and a display apparatus (10). The backlight module (100) comprises a backplane (110), a lamp panel (120) and a plurality of lamp beads (130); the lamp panel (120) is disposed opposite to the backplane (110); the plurality of lamp beads (130) are arranged on the side of the lamp panel (120) distant from the backplane (110); and the backplane (110) comprises a backplane body (111), at least one slot (112), and a thermally conductive adhesive (113).

IPC Classes  ?

  • G02F 1/13357 - Illuminating devices
  • F21V 29/00 - Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems

80.

PIXEL DRIVING CIRCUIT, AND DISPLAY PANEL AND CONTROL METHOD THEREFOR

      
Application Number CN2022142031
Publication Number 2024/027087
Status In Force
Filing Date 2022-12-26
Publication Date 2024-02-08
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Yuan, Haijiang

Abstract

The present application discloses a pixel driving circuit, and a display panel and a control method therefor. The pixel driving circuit comprises: a signal generation module (10), wherein an input end of the signal generation module (10) is connected to a scanning line (L1), and the signal generation module (10) is used for generating a second scanning signal according to a first scanning signal and outputting the second scanning signal from a first output end; and a light emitting driving module (20), wherein a first controlled end, a second controlled end, and a third controlled end of the light emitting driving module (20) are connected to the scanning line (L1), a data line (L2), and the first output end of the signal generation module (10) in one-to-one correspondence.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

81.

Organic light-emitting display panel with shielding terminals having varying widths, display device, and method of packaging display panel

      
Application Number 18214457
Grant Number 11895877
Status In Force
Filing Date 2023-06-26
First Publication Date 2024-02-06
Grant Date 2024-02-06
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Geng, Miao
  • Yuan, Haijiang

Abstract

An organic light-emitting display panel, a display device, and a method of packaging a display panel are disclosed. The organic light-emitting display panel includes a cover plate, a substrate arranged opposite to the substrate, a packaging layer disposed between the cover plate and the substrate, a touch control circuit formed on the cover plate, touch bonding pins disposed at an edge of the cover plate and coupled to the touch circuit, and multiple shielding terminals disposed on both sides of the touch bonding pins. The touch bonding pins and the shielding terminals are disposed corresponding to the packaging layer. A length of each shielding terminal is consistent with a length of each touch bonding pin. Along a direction of getting away from the touch bonding pins, widths of the plurality of shielding terminals gradually decrease.

IPC Classes  ?

  • H10K 59/126 - Shielding, e.g. light-blocking means over the TFTs
  • H10K 59/70 - OLEDs integrated with inorganic light-emitting elements, e.g. with inorganic electroluminescent elements
  • H10K 59/40 - OLEDs integrated with touch screens
  • H10K 59/131 - Interconnections, e.g. wiring lines or terminals

82.

COMPENSATION CIRCUIT, TOUCH SCREEN, AND ELECTRONIC DEVICE

      
Application Number 18076549
Status Pending
Filing Date 2022-12-07
First Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Li, Dehuai
  • Wang, Huiqi
  • Liu, Changfu
  • Yuan, Haijiang

Abstract

A compensation circuit, a touch screen, and an electronic device are provided in the disclosure. The compensation circuit includes a logic circuit, a selection circuit, and a switch circuit. The logic circuit is configured to obtain a first selection signal, a second selection signal, and a third selection signal according to an enable signal and a timing signal. The selection circuit is configured to obtain a first control signal according to the first selection signal, obtain a second control signal according to the second selection signal, and obtain a third control signal according to the third selection signal.

IPC Classes  ?

  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
  • G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
  • G02F 1/1333 - Constructional arrangements

83.

BACKPLANE FOR BACKLIGHT MODULE, BACKLIGHT MODULE AND DISPLAY DEVICE

      
Application Number CN2022137203
Publication Number 2024/021428
Status In Force
Filing Date 2022-12-07
Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Yang, Xiaohui
  • Kang, Baohong

Abstract

Disclosed are a backplane (100) for a backlight module (20), a backlight module (20) and a display device (10). The backlight module (20) comprises a backplane (100) and a light panel (200) arranged on the backplane (100), wherein at least one sinking heat dissipation channel (110) is provided on the side of the backplane (100) facing the light panel (200); the backplane (100) comprises at least one air inlet (120) and at least one air outlet (130); and the air inlet (120) and the air outlet (130) pass through the backplane (100) and are connected to both ends of the heat dissipation channel (110).

IPC Classes  ?

84.

PIXEL DRIVING CIRCUIT AND DISPLAY PANEL

      
Application Number CN2022141297
Publication Number 2024/021465
Status In Force
Filing Date 2022-12-23
Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Li, Rongrong

Abstract

A pixel driving circuit (100) and a display panel. The pixel driving circuit (100), during a reset stage, charges via a pre-charging loop (L1) the voltage of a first end of a bootstrap capacitor (C2) to a driving voltage (VDD); during a data writing stage, receives a data voltage (Vdata) via the bootstrap capacitor (C2) and charges an energy storage capacitor (C1) via the bootstrap capacitor (C2) so as to regulate the voltage of the control end of a driving transistor (M) to a second voltage; and during a light-emitting stage, enables the driving transistor (M) to drive, on the basis of the second voltage and the driving voltage (VDD), a light-emitting element (OLED) to emit light, thereby eliminating the phenomena of uneven display brightness.

IPC Classes  ?

  • G09G 3/3258 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element

85.

DISPLAY PANEL

      
Application Number CN2022141952
Publication Number 2024/021499
Status In Force
Filing Date 2022-12-26
Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Pu, Yang
  • Wang, Ranlong
  • Yuan, Haijiang

Abstract

The present application provides a display panel. The display panel comprises a counter substrate and an array substrate. The counter substrate is provided with a plurality of opening regions arranged in an array and a non-opening region between adjacent opening regions. The array substrate comprises a first substrate and a plurality of electrophoresis units arranged on the first substrate. Each electrophoresis unit corresponds to an opening region. Each electrophoresis unit comprises: an annular support column, a pixel electrode, a common electrode and electrophoretic particles. The orthographic projection of the annular support column on the counter substrate is located in the non-opening region, and surrounds the opening region. The annular support column defines an accommodating space. The pixel electrode and the common electrode are arranged on two opposite sides of the annular support column in a horizontal direction, and thus a horizontal electric field can be generated. A plurality of electrophoretic particles are arranged in the accommodating space of the annular support column, and the electrophoretic particles can horizontally move under the driving of the horizontal electric field formed between the pixel electrode and the common electrode.

IPC Classes  ?

86.

DRIVING METHOD AND DRIVING APPARATUS FOR DISPLAY PANEL

      
Application Number CN2022143040
Publication Number 2024/021518
Status In Force
Filing Date 2022-12-28
Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Mancheng
  • Zheng, Haoxuan

Abstract

A driving method and driving apparatus (40) for a display panel (60). The driving method comprises: receiving a video signal sent by an external processor (50) (S11); when a first grayscale value of the current row of pixels of a display panel (60) that corresponds to the video signal is greater than a set grayscale value, sending a first scanning signal to the current row of pixels (S12); sending a second scanning signal to the next row of pixels of the display panel (60) (S13); and sending a data signal to the display panel (60) on the basis of the first grayscale value, so as to drive the display panel (60) to display the video signal (S14), wherein the first scanning signal is at a high level within a current-row scanning period and has a high level for a first time width within a next-row scanning period, the second scanning signal is at a high level within the next-row scanning period, the data signal has a low level for a second time width within the current-row scanning period, and the sum of the first time width and the second time width corresponds to the first grayscale value. The refresh rate of high-grayscale display can be increased, such that the image quality of high-grayscale display can be improved.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

87.

PIXEL DRIVING CIRCUIT, AND DISPLAY PANEL AND DRIVING METHOD THEREFOR

      
Application Number CN2022143441
Publication Number 2024/021521
Status In Force
Filing Date 2022-12-29
Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Pu, Yang
  • Wang, Ranlong
  • Yuan, Haijiang

Abstract

A pixel driving circuit, and a display panel and a driving method therefor. The pixel driving circuit comprises a first electrode (10) and a second electrode (20); the first electrode (10) and the second electrode (20) are used for forming an electric field for driving electrophoretic particles (720) to move; the second electrode (20) is connected to a common terminal (Vcom), and the common terminal (Vcom) provides a common voltage to the second electrode (20); a first power supply module (30), a second power supply module (40), and a maintenance module (50) are all connected to the first electrode (10), and respectively output a first voltage, a second voltage, and a maintaining voltage to the first electrode (10); the first voltage is less than the common voltage, and the second voltage is greater than the common voltage; and at a same time, only one of the first power supply module (30), the second power supply module (40), and the maintenance module (50) supplies power to the first electrode (10). The electrophoretic particles (720) can be effectively driven to move.

IPC Classes  ?

  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source

88.

PIXEL DRIVING CIRCUIT AND DISPLAY PANEL

      
Application Number CN2022143455
Publication Number 2024/021522
Status In Force
Filing Date 2022-12-29
Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Li, Rongrong

Abstract

A pixel driving circuit and a display panel. The pixel driving circuit comprises a driving transistor, wherein a first end of the driving transistor is connected to a power supply end, a second end thereof is connected to a light-emitting unit, and a control end thereof is used for providing, in response to a data signal, a voltage of the power supply end to the light-emitting unit; a storage capacitor, wherein one end of the storage capacitor is connected to the control end of the driving transistor, and the other end thereof is connected to the first end of the driving transistor; and a first initialization unit, a second initialization unit and a third initialization unit, which are respectively used for providing initialization signals to the first end, second end and control end of the driving transistor in response to corresponding scanning signals. The solution can alleviate the flickering phenomenon.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

89.

DISPLAY PANEL AND DISPLAY DEVICE

      
Application Number 18083408
Status Pending
Filing Date 2022-12-16
First Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Xue, Xinghao
  • Li, Rongrong

Abstract

A display panel and a display device are disclosed. The display panel includes a first substrate, a second substrate, and a liquid crystal layer disposed therebetween. The first substrate includes a first base and a plurality of pixel units arranged thereon in an array. The pixel units in odd-numbered columns are first pixel units, and those in even-numbered columns are second pixel units. An alignment direction of the first substrate is perpendicular to an extending direction of the column of the pixel units. A liquid crystal molecule corresponding to each first pixel unit defines a first pretilt angle, and that corresponding to each second pixel unit defines a second pretilt angle. An opening direction of the first pretilt angle is consistent with the alignment direction of the first substrate, and an opening direction of the second pretilt angle is opposite to the alignment direction of the first substrate.

IPC Classes  ?

  • G02F 1/1337 - Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
  • G02F 1/1333 - Constructional arrangements

90.

PIXEL DRIVE CIRCUIT AND DISPLAY PANEL

      
Application Number 18090585
Status Pending
Filing Date 2022-12-29
First Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Renjie
  • Li, Rongrong

Abstract

A pixel drive circuit and a display panel are provided in the disclosure. The pixel drive circuit includes a drive transistor, an energy-storage capacitor, a bootstrap capacitor, a pre-charge loop, a data-writing loop, and a light-emitting loop. The energy-storage capacitor has a first terminal coupled with a control terminal of the drive transistor. The bootstrap capacitor has a first terminal coupled with a first coupling terminal of the drive transistor. The pixel drive circuit is configured to charge a voltage at the first terminal of the bootstrap capacitor to reach a value of a drive voltage via the pre-charge loop in a reset phase, and receive a data voltage via the bootstrap capacitor to charge the energy-storage capacitor based on a bootstrap effect of the bootstrap capacitor in a data-writing phase.

IPC Classes  ?

  • G09G 3/3258 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element

91.

PIXEL ARRANGEMENT STRUCTURE, DISPLAY PANEL, AND MASK ASSEMBLY

      
Application Number CN2022135400
Publication Number 2024/021416
Status In Force
Filing Date 2022-11-30
Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Jiang, Qing
  • Xia, Xingda
  • Liao, Huihua
  • Zheng, Haoxuan

Abstract

The present application relates to a pixel arrangement structure, a display panel, and a mask assembly. The pixel arrangement structure comprises a plurality of repeating pixel units (PU), and each repeating pixel unit (PU) comprises a red sub-pixel (R), green sub-pixels (G) and a blue sub-pixel (B), wherein the plurality of repeating pixel units (PU) are aligned and distributed in rows and columns, and in each repeating pixel unit (PU), the light-emitting area of the red sub-pixel (R) is greater than the light-emitting area of the green sub-pixels (G) and less than or equal to the light-emitting area of the blue sub-pixel (B). The pixel arrangement structure ensures the service life of a display panel and also has a high pixel aperture ratio.

IPC Classes  ?

  • H10K 50/10 - OLEDs or polymer light-emitting diodes [PLED]
  • H10K 50/822 - Cathodes characterised by their shape
  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels

92.

ARRAY SUBSTRATE AND PREPARATION METHOD THEREFOR, AND DISPLAY APPARATUS

      
Application Number CN2022141356
Publication Number 2024/021466
Status In Force
Filing Date 2022-12-23
Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Yuan, Xin
  • Zhou, Fancy
  • Yuan, Haijiang

Abstract

The present application relates to an array substrate and a preparation method therefor, and a display apparatus. The array substrate (1) comprises a base substrate (10), and a cushioning layer (12), a semiconductor layer (13), a gate insulating layer (14), a gate layer (15) and a passivation layer (16) which are sequentially formed on the base substrate (10). The array substrate (1) further comprises: a modulation layer (11) comprising a source (S) and a drain (D) distributed at an interval. The semiconductor layer (13) comprises a first conductive region (131), a channel region (130) and a second conductive region (132), and the channel region (130) is located between the first conductive region (131) and the second conductive region (132); the first conductive region (131) is electrically connected to the source (S) by means of a first via hole (H1) formed in the cushioning layer (12), and the second conductive region (132) is electrically connected to the drain (D) by means of a second via hole (H2) formed in the cushioning layer (12); the gate insulating layer (14) is located on the channel region (130), and the gate layer (15) is located on the gate insulating layer (14); and the passivation layer (16) is located on the gate layer (15), the first conductive region (131), the second conductive region (132), and the cushioning layer (12). The array substrate can reduce coupling capacitance between a gate and the source and coupling capacitance between the gate and the drain, and improve the flatness of an electrode layer.

IPC Classes  ?

  • H10K 59/00 - Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group

93.

DISPLAY PANEL AND PREPARATION METHOD

      
Application Number CN2022142465
Publication Number 2024/021511
Status In Force
Filing Date 2022-12-27
Publication Date 2024-02-01
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Li, Zeyao
  • Zheng, Haoxuan

Abstract

Provided in the present application are a display panel and a preparation method. The display panel comprises a substrate, a driving circuit layer, a plurality of light-emitting units and a black matrix layer, wherein the black matrix layer is located between adjacent light-emitting units; the light-emitting units are arranged staggered with driving elements, common electrodes and signal traces; and light-emitting elements emit light towards quantum dot layers, thereby exciting the quantum dot layers to emit light. Provided in the embodiments of the present application is a full-color display panel, which emits light towards a substrate. Moreover, electrodes of driving transistors and/or switching transistors are improved, such that when the light-emitting units emit light towards the substrate, the influence of the emergent light on active portions of the driving transistors and/or active portions of the switching transistors is reduced by means of the improved electrodes of the driving transistors and/or the switching transistors, thereby improving the light emission effect of the display panel provided in the embodiments of the present application, and reducing the influence of emergent light on a device of the display panel.

IPC Classes  ?

  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
  • H01L 21/84 - Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being other than a semiconductor body, e.g. being an insulating body

94.

Pixel drive circuit, display panel, and display device

      
Application Number 18068799
Grant Number 11887543
Status In Force
Filing Date 2022-12-20
First Publication Date 2024-01-30
Grant Date 2024-01-30
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Xiufeng
  • Yuan, Xin
  • Li, Rongrong

Abstract

A pixel drive circuit includes: a driving compensation circuitry, a data-writing circuitry, and a flip-elimination circuitry. By configuring the flip-elimination circuitry, the reference voltage can be written to the control end of the drive transistor through the independent circuit line in the compensation phase, thereby it is unnecessary to write the reference voltage through the data-voltage line before each writing of the data voltage. In the writing phase of the data voltage, the entire time of each writing can be used for the writing of data voltage without reserving half of the time for writing the reference voltage, so that the level switch frequency of the data line does not need to reach twice the normal light-emitting frequency, which reduces the burden on the display panel, greatly reduces the power consumption of the screen, and improves product competitiveness.

IPC Classes  ?

  • G09G 3/325 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror the data current flowing through the driving transistor during a setting phase, e.g. by using a switch for connecting the driving transistor to the data driver
  • G09G 3/3258 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
  • G09G 3/3275 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] - Details of drivers for data electrodes
  • G09G 3/3266 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] - Details of drivers for scan electrodes
  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

95.

Display apparatus, control circuit, and anti-peeping display method

      
Application Number 18209463
Grant Number 11886059
Status In Force
Filing Date 2023-06-13
First Publication Date 2024-01-30
Grant Date 2024-01-30
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Wan, Ye
  • Kang, Baohong

Abstract

A display apparatus, a control circuit, and an anti-peeping display method are provided. The display apparatus includes a display panel and a backlight module. The anti-peeping display method includes: determining an anti-peeping area; controlling the dimming diaphragm to be alternately switched between a transparent mode and a diffusion mode; in response to the dimming diaphragm being switched to the transparent mode, disabling a part of first light-emitting units rotating into the anti-peeping area from emitting light and enabling a part of second light-emitting units rotating into the anti-peeping area to emit light; and in response to the dimming diaphragm being switched to the diffusion mode, disabling the part of the first light-emitting units rotating into the anti-peeping area to emit light and the part of the second light-emitting units rotating into the anti-peeping area from emitting light.

IPC Classes  ?

  • G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
  • G02F 1/13357 - Illuminating devices
  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
  • F21V 14/02 - Controlling the distribution of the light emitted by adjustment of elements by movement of light sources

96.

DISPLAY PANEL, DISPLAY APPARATUS, AND PREPARATION METHOD FOR DISPLAY PANEL

      
Application Number CN2022142678
Publication Number 2024/016600
Status In Force
Filing Date 2022-12-28
Publication Date 2024-01-25
Owner
  • CHANGSHA HKC OPTOELECTRONICS CO., LTD. (China)
  • HKC CORPORATION LIMITED (China)
Inventor
  • Cao, Shangcao
  • Wu, Kerong
  • Li, Rongrong

Abstract

Disclosed in the present application are a display panel (100), a display apparatus (10), and a preparation method for a display panel (100). A base substrate (200), an anode (300), a pixel definition layer (400), a light-emitting layer (500) and a cathode (600) are arranged in sequence, and the cathode (600) covers the light-emitting layer (500) and the pixel definition layer (400); a filter layer (700) is arranged on the side of the cathode (600) that is away from the base substrate (200); and a second light-emitting region (520) corresponds to a blue color resistor (730), and the second light-emitting region (520) comprises a blue light-emitting layer (521) made of a blue light-emitting material.

IPC Classes  ?

97.

BACKLIGHT DRIVING CIRCUIT, BACKLIGHT MODULE, AND DISPLAY DEVICE

      
Application Number CN2022141294
Publication Number 2024/016591
Status In Force
Filing Date 2022-12-23
Publication Date 2024-01-25
Owner
  • MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD. (China)
  • HKC CORPORATION LIMITED (China)
Inventor
  • Ji, Guofei
  • Zhang, Dalei
  • Zheng, Haoxuan

Abstract

A backlight driving circuit (100), comprising an energy supply module (10) and a current adjustment module (20). The current adjustment module (20) measures the light-emitting brightness of first light-emitting columns (400) and/or second light-emitting columns (500) to obtain a detection current, and compares the detection current with a mode switching current. The current adjustment module (20) selectively controls the first light-emitting columns (400) and the second light-emitting columns (500) to be electrically connected to first connecting lines (70) simultaneously, or controls the first light-emitting columns (400) to be electrically connected to second connecting lines (80) and controls the second light-emitting columns (500) to be electrically connected to the second connecting lines (80).

IPC Classes  ?

  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals

98.

DISPLAY PANEL AND DISPLAY APPARATUS

      
Application Number CN2022133724
Publication Number 2024/011810
Status In Force
Filing Date 2022-11-23
Publication Date 2024-01-18
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Chen, Yang
  • Liao, Huihua
  • Jiang, Qing
  • Song, Zhihui
  • Zheng, Haoxuan

Abstract

The present application provides a display panel 1 and a display apparatus 1000. The display panel 1 comprises a first bent portion 11 and a body portion 13, which are connected. The display panel 1 is provided with a first area 21 and a second area 22, wherein part of the first area 21 is arranged corresponding to the first bent portion 11, and the second area 22 is arranged corresponding to the body portion 13. The display panel 1 further comprises a plurality of first light-emitting units 31 and a plurality of second light-emitting units 32, wherein the plurality of first light-emitting units 31 are arranged in the first area 21, and the first light-emitting units 31 have a first light emission area; the plurality of second light-emitting units 32 are arranged in the second area 22, and the second light-emitting units 32 have a second light emission area; the first light emission area is smaller than the second light emission area; and the density of the first light-emitting units 31, which are in the first area 21, is greater than the density of the second light-emitting units 32, which are in the second area 22. With regard to the display panel 1 in the present application, the phenomenon of a green or purple edge being easily generated at a high-curvature position in the display panel 1, etc., can be avoided.

IPC Classes  ?

99.

DATA DRIVING CIRCUIT, DISPLAY MODULE, AND METHOD FOR OUTPUTTING DRIVING SIGNAL

      
Application Number CN2022132868
Publication Number 2024/011807
Status In Force
Filing Date 2022-11-18
Publication Date 2024-01-18
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Zhou, Mancheng
  • Guo, Dongsheng
  • Kang, Baohong

Abstract

A data driving circuit (11), a display module (10), and a method for outputting a driving signal. A data processing unit (111) outputs a data clock signal (DCLK) and a data signal (Data), and a grayscale clock generation unit (112) outputs, according to the data clock signal (DCLK), a grayscale clock signal (GCLK) comprising a first grayscale area (GL) and a second grayscale area (GH), the grayscale pulse duration in the first grayscale area (GL) being greater than the grayscale pulse duration in the second grayscale area (GH). The color cast of a display panel (13) is mitigated by controlling the duration of a grayscale pulse, thereby improving the display effect.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

100.

Backlight circuit, displaying device and displaying driving method

      
Application Number 18348226
Grant Number 11876082
Status In Force
Filing Date 2023-07-06
First Publication Date 2024-01-16
Grant Date 2024-01-16
Owner HKC CORPORATION LIMITED (China)
Inventor
  • Wei, Guangping
  • Qin, Yaohui
  • Xu, Yiyao
  • Song, Caiyu
  • Li, Rongrong

Abstract

A backlight circuit includes a lamp panel and a plurality of electron microscope assemblies. The lamp panel includes a driving substrate and a plurality of light-emitting chips on one side of the driving substrate. The electron microscope assemblies are disposed on first sides, away from the driving substrate, of the light-emitting chips in a one-to-one correspondence manner. Each electron microscope assembly includes a transparent electrode shield, an electrolyte, and an electrode plate. The transparent electrode shields are disposed on a first side of the driving substrate. The light-emitting chips are positioned in the transparent electrode shields. The electrode plates are disposed on first sides, away from the driving substrate, of the transparent electrode shields. The electrolytes are filled between the transparent electrode shields and the electrode plates.

IPC Classes  ?

  • H01L 25/00 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices all the devices being of a type provided for in the same subgroup of groups , or in a single subclass of , , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • G02F 1/13357 - Illuminating devices
  • H01L 33/40 - Materials therefor
  • H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices the devices being of types provided for in two or more different main groups of groups , or in a single subclass of , , e.g. forming hybrid circuits
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