挠曲电效应对向列相液晶盒响应时间的影响

计算物理 ›› 2013, Vol. 30 ›› Issue (5): 727-732.

挠曲电效应对向列相液晶盒响应时间的影响

邢红玉^1,2,3, 叶文江³, 周璇³, 孙玉宝³, 张志东³, 宣丽¹

1. 中国科学院长春光学精密机械与物理研究所, 应用光学国家重点实验室, 吉林长春 130033;
2. 中国科学院大学, 北京 100049;
3. 河北工业大学理学院, 天津 300401

收稿日期:2012-11-05 修回日期:2013-04-08 出版日期:2013-09-25 发布日期:2013-09-25
作者简介:邢红玉(1978-),女,河北石家庄,硕士,讲师,从事液晶物理及液晶器件物理研究,E-mail:hongyu_xing@163.com
基金资助:
国家自然科学基金(11274088,11374087和11304074);河北省教育厅项目(Z2012061);河北省高校重点学科资助项目

Flexoelectric Effect in Response Time of Nematic Liquid Crystal Cell

XING Hongyu^1,2,3, YE Wenjiang³, ZHOU Xuan³, SUN Yubao³, ZHANG Zhidong³, XUAN Li¹

1. State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. School of Sciences, Hebei University of Technology, Tianjin 300401, China

Received:2012-11-05 Revised:2013-04-08 Online:2013-09-25 Published:2013-09-25

摘要/Abstract

摘要： 应用液晶动力学理论和差分迭代方法,考虑上液晶挠曲电特性情形下研究强锚泊混合排列向列相液晶盒撤掉电压时的动态响应过程,数值计算得到液晶盒透过率随时间的变化.结果表明:随展曲和弯曲挠曲电系数和的绝对值|e₁₁+e₃₃|的增加,液晶盒的响应时间逐渐减小,当|e₁₁+e₃₃|=50 pC·m^-1时,响应时间与忽略挠曲电效应的情况相比缩短了一半.

关键词: 挠曲电效应, 液晶动力学理论, 响应时间, 混合排列向列相, 强锚泊

Abstract: Based on dynamic theory of liquid crystal and finite-difference iterative method, dynamic response of strong anchoring hybrid aligned nematic (HAN) liquid crystal cell as removing applied voltage was studied. Flexoelectricity of liquid crystal material was considered. Time-dependences of transmittance through a HAN cell were obtained. It indicates that response time decreases with increasing of absolute value of the sum of splay and bend flexoelectric coefficient |e₁₁+e₃₃|. Especially, at |e₁₁+e₃₃|=50 pC·m^-1 response time is half shortened relative to the case with no flexoelectric effect.

Key words: flexoeleetric effect, dynamic theory of liquid crystal, response time, hybrid aligned nematic, strong anchoring

中图分类号:

O753

邢红玉, 叶文江, 周璇, 孙玉宝, 张志东, 宣丽. 挠曲电效应对向列相液晶盒响应时间的影响[J]. 计算物理, 2013, 30(5): 727-732.

XING Hongyu, YE Wenjiang, ZHOU Xuan, SUN Yubao, ZHANG Zhidong, XUAN Li. Flexoelectric Effect in Response Time of Nematic Liquid Crystal Cell[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2013, 30(5): 727-732.

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