Liquid Crystal Alignment Using a In-situ Photoalignment Metho

In-situ 광배향법을 이용한 액정 배향

  • 서대식 (연세대학교 전기·전자공학과) ;
  • 김형규 (연세대학교 전기·전자공학과) ;
  • 김재형 (인제대학교 물리학과) ;
  • 한은주 (수원대학교 물리학과)
  • Published : 2000.09.01

Abstract

Effects of liquid crystal (LC) alignment using a in-situ photoalignment method by polarized UV exposure on a polyimide (PI) surface with medium side chain were studied. The generated pretilt angle in nematic(N) LC using a in-situ photoalignment method was smaller than that of a conventional photoalignment method for short UV exposure time. Also, the pretilt angle of NLC using a in-situ photoalignment method increases with increasing UV exposure time on the PI surfaces. Finally, the pretilt angle of NLC can be improved by annealing treatment.

Keywords