Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Pretilt Angle Generation of Photo-aligned TN-LCD Using Oblique Non-polarized UV Light Irradiation on Polymer Surface

경사진 자외선조사를 이용한 네마틱액정의 프리틸각의 발생 및 광배향 TN-LCD의 전기광학특성

  • 서대식 (숭실대학교 공과대학 전기공학과) ;
  • 한정민 (숭실대학교 공과대학 전기공학과) ;
  • 박두석 (숭실대학교 공과대학 전기공학과)
  • Published : 1998.10.01
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Abstract

In this paper, we have investigated the generation of pretilt angle for nematic liquid crystal (NLC) in a cell with oblique non-polarized ultraviolet(UV) light irradiation polyimide (PI) surface. It was found that the monodomain alignment of the NLC is obtained with an angle of incidence of 70∼85。 on PI surface. It is considered that the monodomain alignment of NLC is attributed to anisotropic of NLC is about 3。 with and angle of incidence of 70∼75。. Finally, we observed that the voltage-transmittance, response time, and voltage-holding-ratio(VHR) characteristics of photo-aligned twisted nematic(TN)-LCD with and angle of incidence of 85。 on PI surface were almost same compared to rubbing -treated TN-LCD.

Keywords

References

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