복합 폴리머 표면에서의 부의 유전율을 가진 네마틱액정의 고프리틸트각 제어

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

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.