A simple and effective ac pixel driving circuit for active matrix OLED

Author

Yujuan, Si ; Yi, Zhao ; Xinfa, Chen ; Shiyong, Liu

Author_Institution

Dept. of Inf. Eng., Jilin Univ., Changchun City, China

Volume

50

Issue

4

fYear

2003

fDate

4/1/2003 12:00:00 AM

Firstpage

1137

Lastpage

1141

Abstract

The lifetime of an organic light emitting display (OLED) generally depends on many aspects. Among them, a driving scheme has recently been considered to be one of the most important factors for improving the performances of OLEDs. It is known that an ac driving mode combined with a reversed-bias voltage improves the lifetime of an OLED. In this brief we present a circuit to understand ac driving mode in active matrix OLED (AMOLED), then simulate this pixel circuit and a 1*4 matrix. By simulation we observed that OLED is in an ac driving mode combined with a reversed-bias voltage. In the end a circuit design for understanding ac driving mode was presented.

Keywords

LED displays; driver circuits; organic light emitting diodes; AC pixel driving circuit; active matrix OLED; device lifetime; organic light emitting display; reversed-bias voltage; Active matrix organic light emitting diodes; Active matrix technology; Analytical models; Circuit simulation; Circuit synthesis; Flat panel displays; Organic light emitting diodes; Organic materials; Thin film transistors; Voltage;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2003.812100

Filename

1206904