Influence of Surface Geometry of Grating Substrate on Director in Nematic Liquid Crystal Cell  

作　　者：叶文江 邢红玉 杨国琛 张志东 孙玉宝 陈国鹰 宣丽 

机构地区：[1]School of Sciences, Hebei University of Technology [2]School of Information Engineering, Hebei University of Technology [3]Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences [4]China Graduate School of Chinese Academy of Sciences [5]State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

出　　处：《Communications in Theoretical Physics》2011年第2期340-344,共5页理论物理通讯（英文版）

基　　金：Supported by Natural Science Foundation of Hebei Province under Grant No.A2010000004;the National Natural Science Foundation of China under Grant Nos.10704022 and 60736042;the Key Subject Construction Project of Hebei Province University

摘　　要：The director in nematic liquid crystal cell with a weak anchoring grating substrate and a strong anchoring planar substrate is relative to the coordinates x and z.The influence of the surface geometry of the grating substrate in the cell on the director profile is numerically simulated using the two-dimensional finite-difference iterative method under the condition of one elastic constant approximation and zero driven voltage.The deepness of groove and the cell gap affect the distribution of director.For the relatively shallow groove and the relatively thick cell gap,the director is only dependent on the coordinate z.For the relatively deep groove and the relatively thin cell gap,the director must be dependent on the two coordinates x and z because of the increased elastic strain energy induced by the grating surface.

关 键 词：grating substrate DIRECTOR elastic constant two-dimensional finite-difference iterative method 

分 类 号：TN253[电子电信—物理电子学]