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23.4: Highly Efficient Top‐Emitting Organic Light‐Emitting Devices
Author(s) -
Hsu ShihFeng,
Hwang ShiaoWen,
Chen Chin H.,
Lee ShiHao,
Lee ChungChun
Publication year - 2006
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.2433192
Subject(s) - rgb color model , gamut , ntsc , optoelectronics , materials science , oled , anode , cathode , light emitting diode , optics , layer (electronics) , electrode , computer science , chemistry , telecommunications , physics , nanotechnology , artificial intelligence , transmission (telecommunications)
Abstract We have developed highly efficient red, green and blue (RGB) top‐emitting organic light‐emitting devices (TOLEDs) by using Ag as anode and cathode. We optimized microcavity effect in the devices by tuning suitable optical length for RGB emissions. A very saturated RGB color with CIE coordinates of (0.646, 0.353), (0.227, 0.721) and (0.135, 0.056) for RGB respectively were demonstrated and shown a color gamut of NTSC 102%. We also introduced a new hole‐injection layer to get better carrier balance in the TOLEDs with which one of the best efficiencies for red was achieved at 37.5 cd/A.