Title :
Improvement of pixel electrode circuit for active-matrix OLED by application of reversed-biased voltage
Author :
Si, Yujuan ; Lang, Liuqi ; Zhao, Yi ; Chen, Xinfa ; Liu, Shiyong
Author_Institution :
Dept. of Inf. Eng., Jilin Univ., Jilin Province, China
Abstract :
In this paper, an improved ac pixel electrode circuit for active-matrix organic light-emitting display (AMOLED) has been proposed by adding a thin-film transistor. This circuit can provide an ac driving mode for AMOLED and makes the OLED in a reversed-biased voltage during the reverse cycle. And a circuit design for understanding ac driving mode was presented. The circuit simulation results indicate that this circuit is feasible. The circuit structure is practical for the AMOLED pixel driver; it can improve the performance of OLED.
Keywords :
LED displays; driver circuits; organic light emitting diodes; thin film transistors; AC pixel driving circuit; AIM-Spice; AMOLED; ac driving mode; active-matrix OLED; circuit simulation; pixel driver; pixel electrode circuit; reversed-biased voltage; thin-film transistor; Active matrix organic light emitting diodes; Active matrix technology; Circuit simulation; Circuit synthesis; Driver circuits; Electrodes; Flat panel displays; Organic light emitting diodes; Thin film transistors; Voltage; AC pixel driving circuit; AIM-Spice; active matrix organic light-emitting display (AMOLED); p-Si thin-film transistor (TFT); simulation;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2005.853344
