A Novel LTPS TFT Pixel Circuit for Compensating IR Drop of Large Area AMOLED Display

被引:10
作者
Lee, Soo-Yeon [1 ]
Kuk, Seung-Hee [1 ]
Song, Seung-Min [1 ]
Song, Moon-Kyu [1 ]
Han, Min-Koo [1 ]
机构
[1] Seoul Natl Univ, Sch Elect Engn, Seoul, South Korea
来源
THIN FILM TRANSISTORS 11 (TFT 11) | 2012年 / 50卷 / 08期
关键词
D O I
10.1149/05008.0269ecst
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
We have proposed a new AMOLED pixel design compensating IR drop besides threshold voltage (V-th) variation of LTPS TFTs without any additional signal. The SPICE simulation results show that the proposed pixel, which consists of 7 PMOS TFTs and 1 capacitor, successfully compensates not only Vth variation but also IR drop. Vth of the driving TFTs are detected and data voltage can be memorized when PMOS only inverter has high input voltage.
引用
收藏
页码:269 / 275
页数:7
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