Study on Thermal Stability of Liquid Crystal Display for Projection TV Application

프로젝션 TV 적용을 위한 액정 디스플레이의 열적 안전성에 관한 연구

  • 강희진 (연세대학교 전기전자공학과) ;
  • 황정연 (연세대학교 전기전자공학과) ;
  • 강형구 (연세대학교 전기전자공학과) ;
  • 배유한 (연세대학교 전기전자공학과) ;
  • 이휘원 (연세대학교 전기전자공학과) ;
  • 김영환 (연세대학교 전기전자공학과) ;
  • 서대식 (연세대학교 전기전자공학과)
  • Published : 2005.05.13

Abstract

We have investigated electro-optical characteristics in three kinds of TN cells on the polyimide surface. Transmittance of no thermal stressed TN cells were better than that of thermal stressed TN cells. Also. the threshold voltage and the response time of thermal stressed TN cells were same that of no thermal stressed TN cells. There were little change of value in these TN cells. On the other hand. transmittances of TN cells on the polyimide surface decreased by increasing thermal stress time. Moreover. the residual DC of the thermal stressed TN cells on the polyimide surface showed the characteristics of thermal stressed TN cells were weakened as increasing thermal stress temperature and time. Therefore. thermal stability of TN cells were decreased gradually by giving high thermal stress for a long time.

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