대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2006년도 추계학술대회 논문집 전기물성,응용부문
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- Pages.22-23
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- 2006
유기박막트랜지스터(OFTF)를 이용한 AMOLED 픽셀 보상회로 연구
A New Organic Thin-Film Transistor based Current-driving Pixel Circuit for Active-Matrix Organic Light-Emitting Displays
- Shin, A-Ram (Department of Engineering, Korea University) ;
- Bae, Young-Seok (Department of Engineering, Korea University) ;
- Hwang, Sang-Jun (Department of Engineering, Korea University) ;
- Sung, Man-Young (Department of Engineering, Korea University)
- 발행 : 2006.10.27
초록
A new current-driving pixel circuit for active-matrix organic light-emitting diodes (AMOLEDs), composed of four organic thin-film transistors (OTFTs) and one capacitor, is proposed using a current scaling method. Designing pixel circuits with OTFTs has many problems due to the instability of the OTFT parameters with still unknown characteristics of the material. Despite the problems in using OTFTs to drive the pixel circuit, our work could be set as a goal for future OTFT development. The simulation results show enhanced linearity between input data and OLEO luminescence at low current levels as well as successfully compensating the variation of the OTFTs, such as the threshold voltage and mobility.
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