垂面排列液晶盒中不同电场表述的比较  

Comparison Study of Different Electric Field Expression of Vertical Alligned Liquid Crystal Cell

作　　者：任芝[1] 李志广[1] 张志东[1] 

机构地区：[1]河北工业大学物理系,天津300130

出　　处：《液晶与显示》2005年第4期287-291,共5页Chinese Journal of Liquid Crystals and Displays

基　　金：河北省自然科学基金资助项目(No.103002);河北省高校重点学科建设资助项目

摘　　要：从液晶连续体理论和动力学理论出发,分析了液晶盒中均匀场近似和非均匀场近似作用下的一般垂直和手性扭曲垂直液晶盒的动态响应特性。计算结果表明:在两种不同的近似情况下,液晶盒的响应速度是不相同的。使用均匀电场近似计算模拟比较简单、方便,计算速度快,可用作定性分析,但不能得到较准确的结果;使用非均匀电场近似更符合液晶盒内电场的真实分布,因此其对动态响应的计算结果更接近实际液晶盒的测试结果。Based on the continuum theory and dynamics theory of liquid crystal, the dynamic response properties of vertical alignment liquid crystal cell and chiral-homeotropic liquid crystal cell have been studied under uniform field and non-uniform field approach in this paper. The calculated results show that the respond speed of liquid crystal cell is disagreement under the two different methods. Computer simulation using the uniform field method is simple and quick, but the result isn＇t exact, so it only can be used to do qualitative analysis. The non-uniform field approches the actual electric field distribution in liquid crystal cell. So the results of using non-uniform field method approach the testing results of the actual liquid crystal cell.

关 键 词：液晶 均匀场方法 非均匀场方法 动态响应 

分 类 号：O753.2[理学—晶体学]