垂直定向液晶光阀中液晶电光特性的理论分析

Simulation of Electric Optical Properties of Hometropic Aligned Liquid Crystal Light Valves

采用 ４×４ 矩阵法模拟计算了垂直定向液晶光阀的电光特性， 从理论上分析了影响液晶光阀电光特性的因素。根据向列液晶的弹性连续体理论及边界力矩平衡方程， 求出了垂直定向向列液晶在液晶界面之间相互作用锚泊能为有限值时的液晶指向矢分布。根据指向矢分布计算了一定外加电场下液晶光阀的电光特性，

The electric optical performance of a hometropic aligned liquid crystal light valve (LCLV) as the function of light valve parameters and operating conditions is simulated numerically. This simulation is based on the 4×4 matrix formalism which is the exact numerical solution of Maxwell′s equation. The effects of liquid crystal (LC) thickness, incident angle and the pretilt angle on the electric optical performance of LCLV are discussed. Based on the Oseen and Frank′s continuum theory of nematic liquid crystal, and generalized torque balance equation at the interfaces, the director configuration and the electric optical performance of a hometropic aligned liquid crystal light valve as the function of light valve parameters and operating conditions are calculated. The effects of anchoring strength of Nematic Liquid Crystal (NLC) wall and the pretilt angle on the director configuration and then the electric optical performance of LCLV are discussed.