Flexoelectric Effect in Response Time of Nematic Liquid Crystal Cell

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2013, Vol. 30 ›› Issue (5): 727-732.

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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

Abstract

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

CLC Number:

O753

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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Flexoelectric Effect in Response Time of Nematic Liquid Crystal Cell

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