A Pixel Circuit with Compensation for Threshold Voltage and Current-Resistance Voltage Drop

被引：0
|
作者：
Guan, Xiaofei [1 ]
Huang, Yong [1 ]
Zhang, Liwen [1 ]
Li, Yuehua [1 ]
Wang, Xinlin [1 ]
He, Hongyu [1 ]
机构：
[1] Univ South China, Hunan Prov Key Lab Ultrafast Micronano Technol &, Sch Elect Engn, Hengyang 421001, Peoples R China
来源：
2019 IEEE INTERNATIONAL CONFERENCE ON ELECTRON DEVICES AND SOLID-STATE CIRCUITS (EDSSC) | 2019年
基金：
美国国家科学基金会;
关键词：
LTPS; TFT; threshold voltage variation; voltage drop; pixel circuit;
D O I：
10.1109/edssc.2019.8754441
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A voltage-programmed circuit is presented for active-matrix organic light-emitting diode (OLED) displays. The circuit contains five low temperature poly-silicon (LTPS) thin film transistors (TFTs) and two capacitors. The circuit can effectively compensate both the threshold voltage shift and the power supply voltage drop. In the circuit, the OLED can avoid flicker in the initialization step. The simulation results demonstrate that the current errors rates of the pixel circuit are below 2.2%.
引用
收藏
页数：3
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