EO performance of photo-aligned TN-LCD with oblique non-polarized UV light irradiation on polymer surface

폴리이미드막에 편광되지 않은 UV광을 경사지게 조사한 광배향 TN-LCD의 전기광학특성에 관한 연구

  • 서대식 (숭실대학교 공과대학 전기공학과) ;
  • 박태규 (숭실대학교 공과대학 전기공학과) ;
  • 한정민 (숭실대학교 공과대학 전기공학과) ;
  • 박두석 (숭실대학교 공과대학 전기공학과) ;
  • 황율연 (한국전자 LCD 사업부)
  • Published : 1998.07.20

Abstract

In this paper, we studied the electro-optical(EO) performance of photo-aligned twisted nematic(TN)-liquid crystal display(LCD) with oblique non-polarized ultraviolet (UV) light irradiation on polyimide (PI) surface. The monodomain alignment of photo-aligned TN-LCD is obtained with an angle of incidence of $85^{\circ}$ on PI surface. Also, we observed that the voltage transmittance and response time characteristics of photo-aligned TN-LCD is almost same compared to rubbing treated TN-LCD. Finally, we measured that the voltage-holding-ratio(VHR) of photo-aligned TN-LCD is almost same compared to rubbing treated TN-LCD.

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