Control of High Pretilt Angle for Nematic Liquid Crystal of Negative Dielectric Anisotropy on Blending Polymer Surfaces

복합 폴리머 표면에서의 부의 유전율을 가진 네마틱액정의 고프리틸트각 제어

  • 황정연 (연세대학교 전기전자공학과) ;
  • 서대식 (연세대학교 전기전자공학과) ;
  • 남상회 (인제대학교 의용공학과)
  • Published : 2001.12.01

Abstract

The control of high pretilt angle for nematic liquid crystal (NLC) with negative dielectric anisotropy on the rubbed blending polyimide (PI) of homeotropic and homogeneous alignment surface was studied. High LC pretilt angle on the rubbing blending polyimide of homeotropic PI and SE-7492 surface was measured and the LC pretilt angle increased wish blending ratio and rubbing strength. However, the low LC pretilt angle on the rubbed blending polyimide of homeotropic PI and SE-150 surface was measured. The high pretilt angle of NLC can be achieved by using the blending PI surface.

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