液晶盒中挠曲电效应的计算  

Calculation of the Flexoelectric Effect in the Liquid Crystal Cell

作　　者：张志东[1] 叶文江[1] 邢红玉[1] 

机构地区：[1]河北工业大学理学院,天津300130

出　　处：《计算物理》2004年第2期156-160,共5页Chinese Journal of Computational Physics

基　　金：河北省自然科学基金(103002)资助项目

摘　　要：　负性液晶MBBA在液晶盒中垂面排列,沿面外加电场后产生挠曲电效应.基于液晶弹性理论研究这一效应,基于变分理论得到了液晶指向矢满足的微分方程及边界条件.应用差分迭代方法进行了数值求解.在小角度近似下,得到了指向矢分布的解析解,与数值解和专著结果进行了比较.Negative liquid crystal MBBA that aligns along the normal to the plates in liquid crystal cell will arise the flexoelectric effect when a external electric field is applied in the plane of slab. Based on the elastic theory of liquid crystal and variation theory, the effect was studied, and the differential equation and boundary condition about the director of liquid crystal had been obtained. Finite-difference iterative method was used for numerical solution. Under the approximation of small angle, analytical solution of the distribution of the director has been also obtained, and compared with the numerical solution and the result of book.

关 键 词：负性液晶 差分选代法 挠曲电效应 弱锚泊 

分 类 号：O753.2[理学—晶体学]