Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Simulations of Effects of Common Electrode Voltage Distributions on Pixel Characteristics in TFT -LCD

TFT-LCD 공통 전극 전압 분포에 따른 화소 특성 시뮬레이션

  • Kim, Tae-Hyung (School of Electronics and Electrical Eng., Hongik Univ.) ;
  • Park, Jae-Woo (School of Electronics and Electrical Eng., Hongik Univ.) ;
  • Kim, Jin-Hong (School of Electronics and Electrical Eng., Hongik Univ.) ;
  • Choi, Jong-Sun (School of Electronics and Electrical Eng., Hongik Univ.)
  • 김태형 (홍익대학교 전자전기공학부) ;
  • 박재우 (홍익대학교 전자전기공학부) ;
  • 김진홍 (홍익대학교 전자전기공학부) ;
  • 최종선 (홍익대학교 전자전기공학부)
  • Published : 2000.04.22
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Abstract

An active-matrix LCD using thin film transistors (TFT) has been widely recognized as having potential for high-quality color fiat-panel displays. Pixel-Design Array Simulation Tool (PDAST) was used to profoundly understand the gate signal distortion and pixel charging capability, which are the most critical limiting factors for high-quality TFT-LCDs. In addition, PDAST can estimate voltage distributions in common electrode which can affect pixel voltage and feed-through voltage. Since PDAST can simulate the gate, data and the pixel voltages of a certain pixel on TFT array at any time and at any location on an array, the effect of common electrode voltage can be effectively analyzed. The information obtained from this study could be utilized to design the larger area and finer image quality panel.

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