Viewing Angle Characteristics of a Liquid Crystal Cell with a Grating Surface

摘要：

The problem of viewing angle in liquid crystal displays (LCDs) has always been a focus. The liquid crystal cell with a grating surface has a better viewing angle characteristics comparing with other LCDs. In this paper, we study the viewing angle characteristics of this cell theoretically. With an equivalent anchoring energy formula for grating surface and elastic theory of the liquid crystal, a hybrid aligned nematic (HAN) liquid crystal cell proposed by Bryan-Brown et al is considered. By means of variation theory we obtain equilibrium equations and boundary conditions for tilt angle and twist angle of director. Based on these equilibrium equations and boundary conditions, the distribution of director of the liquid crystal molecules are calculated using the finite-difference iterative method. With the extended Jones matrix method, we calculate the transmittance and simulate the electro-optical property of liquid crystal cell. Finally, through the calculation of director distribution and light transmittance we make the viewing angle characteristic curves, and analyze the influence of different geometric parameters of grating surface on viewing angle characteristics.

关键词： viewing angle characteristic grating surface equivalent anchoring energy formula geometric parameter

作者: Xing Hongyu Ye Wenjiang Ren Zhi Zhang Zhidong Sun Yubao Chen Guoying

作者单位: School of Sciences, Hebei University of Technology, Tianjin, China School of Sciences, Hebei University of Technology, Tianjin, China School of Information Engineering Department of Mathematics & Physics, North China Electric Power University, Baoding, China School of Information Engineering, Hebei University of Technology, Tianjin, China

会议类型: 国际会议

会议名称: The 11th Asian Symposium on Information Display(ASID09)(第11届亚洲信息显示会议)

会议地点: 广州

会议语种:英文

页码: 201-204

在线出版日期: 2009-10-07（万方平台首次上网日期，不代表论文的发表时间）