Patent ID: 7795799
Filing Date: 2010-09-14
Classification: C09K,H01L,H05B,Y02B,Y10S,Y10T

Abstract:
1. A light-emitting device comprising at least an anode, an organic compound layer containing a light-emitting layer, and a cathode which are provided on a substrate, wherein the light-emitting layer is disposed between the anode and the cathode, and comprises a red light-emitting material having a light-emitting wavelength peak of from 580 to 670 nm, a green light-emitting material having a light-emitting wavelength peak of from 500 to 570 nm, and a blue light-emitting material having a light-emitting wavelength peak of from 400 to 500 nm, and wherein the green light-emitting material comprises at least one green light-emitting material which is an orthometallated complex; wherein the red light-emitting material comprises at least one red light-emitting material which is an orthometallated complex; wherein the metal forming the complex for the at least one green light-emitting material which is an orthometallated complex is iridium or platinum; wherein the metal forming the complex for the at least one red light-emitting material which is an orthometallated complex is iridium; wherein (1) the blue, green and red light-emitting materials are contained in the same light-emitting layer, or (2) the light-emitting layer comprises at least two different light-emitting layers in physical contact with each other, each containing at least one of the blue, green or red light-emitting materials.