RGB luminescence from passive-matrix organic LED´S

Author

Kijima, Yasunori ; Asai, Nobutoshi ; Kishii, Noriyuki ; Tamura, Shin-ichiro

Author_Institution

Res. Center, Sony Corp., Yokohama, Japan

Volume

44

Issue

8

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

1222

Lastpage

1228

Abstract

We fabricated an 8×9 (3RGB) passive matrix of organic light-emitting diodes (OLED´s) and operated it at a video-rate to simulate NTSC signals. The color purity of red emission was improved by controlling the depth distribution of DCM in the Alq₃ layer. A newly synthesized binuclear metal complex compound was incorporated for blue emission and provided good chromaticity. We found that the rectification property of the OLED is important to drive a passive matrix and about 10⁵ OLED pixels can be driven when aluminum is used as the cathode material

Keywords

LED displays; electroluminescence; flat panel displays; light emitting diodes; organic compounds; rectification; 8×9 passive matrix; Al; Al cathode material; Alq₃ layer; DCM depth distribution control; I-V characteristics; ITO; ITO anode; InSnO; NTSC signal simulation; RGB luminescence; Zn₂(oxz)₂Cl; binuclear metal complex compound; blue emission; chromaticity; color purity; passive-matrix organic LED; rectification property; red emission; self-luminous flat panel display; video-rate operation; Active matrix organic light emitting diodes; Cathodes; Flat panel displays; Indium tin oxide; Light emitting diodes; Luminescence; Organic light emitting diodes; Organic materials; Substrates; Surface morphology;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.605458

Filename

605458