Abstract

A display device comprising a thin metal-organic mixed layer (MOML) comprising a metal (containing material) and an organic material, and having a thickness of less than 175 nm. A thin metal-organic mixed layer may be of a single or multi-layer configuration. The percent reflectance of a device may be controlled by varying the thickness of the MOML(s) and the metal component and concentration thereof in the MOML(s).

IPC Classes  ?

• H05B 33/12 - Light sources with substantially two-dimensional radiating surfaces
• H05B 33/02 - Electroluminescent light sources - Details

Abstract

An organic electroluminescent device comprising an anode, an electroluminescent region, and a cathode. The luminescent region comprises a light- emitting material of Formula I (see formula I) wherein R1 is independently selected from the group consisting of a hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, an amino group, an alkyl amino group, and an aryl amino group; R2 is independently selected from the group consisting of hydrogen, a hetero atom, and an alkyl group; R3 is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group; and, R4 is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group.

IPC Classes  ?

• C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
• H01J 17/20 - Selection of substances for gas fillings; Specified operating pressures or temperatures

Abstract

An organic light emitting device composed of: a cathode; a layer including an organic electroluminescent material; a layer including an electron accepting material; an anode capping layer comprising an inorganic material; an anode; and a substrate in the sequence before the cathode or after the anode, wherein the anode capping layer is selected to provide the device with a luminance stability ratio that is greater than 1.