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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음의 유전율을 갖는 액정을 이용한 FFS모드에서의 Optical bounce 발생 원인에 관한 연구

  • 채미나 (전북대학교 고분자.나노공학과) ;
  • 하경수 (전북대학교 고분자.나노공학과) ;
  • 정준호 (전북대학교 고분자.나노공학과) ;
  • 이승희 (전북대학교 고분자.나노공학과)
  • Published : 2009.11.12
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Abstract

Optical bounce which occurs by over twist of the liquid crystal (LC) director has a problem of response time in fringe-field switching (FFS) modes. After removing the electric field, effective birefringence ($d{\Delta}n_{eff}$) at the edge of pixel electrode meets the $\lambda/2$ phase instantly, since tilt angle of LC directors at that position suddenly decreases compared to twist angle. In this paper, based on the careful analysis, origin of optical bounce has been explained.

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