A new stable a-Si:H TFT pixel for AMOLED by employing the a-Si:H TFT photo sensor

被引：1

作者：

Shin, Hee-Sun ^{[1
]}

Park, Hyun-Sang ^{[1
]}

Lee, Woocheul ^{[1
]}

Han, Min-Koo ^{[1
]}

Yoo, Juhn-Seok ^{[2
]}

Kim, Chang-Dong ^{[2
]}

Kang, InByeong ^{[2
]}

机构：

[1] Seoul Natl Univ, Sch Elect Engn & Comp Sci 50, San 56-1, Seoul 151742, South Korea

[2] LG Philips LCD, LCD R&D Ctr, Anyang 431080, Kyoungki Do, South Korea

来源：

2008 SID INTERNATIONAL SYMPOSIUM, DIGEST OF TECHNICAL PAPERS, VOL XXXIX, BOOKS I-III | 2008年 / 39卷

关键词：

D O I：

10.1889/1.3069353

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The optical feedback pixel circuit has been attractive compensation scheme for improving AMOLED display quality. We reported that the photoelectric characteristics of the a-Si:H TFT as the integrated photo sensor under two bias condition (Vgs=0V, Vgs<0V). And we proposed a new optical feedback pixel circuit integrating the a-Si:H TFT photo sensor in each pixel. In order to improve the compensation ability, the sensor part is separated to the gate of driving TFT during selecting time. We verified the proposed pixel circuit could compensate the variation of OLED luminance not only by TFT degradation, but also by OLED degradation. We will also report the experimental results.

引用

页码：1211 / +

页数：2

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