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High Resolution a-IGZO TFT Pixel Circuit for Compensating Threshold Voltage Shifts and OLED Degradations
- Kim, Daejung;
- Kim, Yongchan;
- Lee, Suwon;
- Kang, Moon Sung;
- Kim, Do Hwan;
- ... Lee, Hojin
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58초록
In this paper, we propose a novel voltage programmed pixel circuit based on amorphous-indium-gallium-zinc-oxide thin-film transistors (a-IGZO TFTs) for active-matrix organic light-emitting displays. Through the extensive simulation work based on a-IGZO TFT and OLED models, we confirm that the proposed pixel circuit can compensate for threshold voltage variations of TFTs and OLED degradation over wide dynamic range (similar to 10(4)) of OLED current as well as achieve a high pixel aperture ratio with the suppressed OLED current error rate below 9%.
키워드
Active-matrix organic light-emitting display (AMOLED); pixel circuit; amorphous-indium-gallium-zinc-oxide TFT (a-IGZO TFT); compensation; high aperture ratio; THIN-FILM TRANSISTORS; AMOLED DISPLAYS; SI
- 제목
- High Resolution a-IGZO TFT Pixel Circuit for Compensating Threshold Voltage Shifts and OLED Degradations
- 저자
- Kim, Daejung; Kim, Yongchan; Lee, Suwon; Kang, Moon Sung; Kim, Do Hwan; Lee, Hojin
- 발행일
- 2017-09
- 유형
- Article
- 권
- 5
- 호
- 5
- 페이지
- 372 ~ 377