| Berreman近似下任意形状表面沟槽对双轴向列相方位锚定的影响 |
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| 引用本文： | 郑桂丽,李根堂,张志东. Berreman近似下任意形状表面沟槽对双轴向列相方位锚定的影响[J]. 液晶与显示, 2011, 26(2): 137-141. DOI: 10.3788/YJYXS20112602.0137 |
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| 作者姓名： | 郑桂丽 李根堂 张志东 |
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| 作者单位： | 河北工业大学,理学院,天津,300401 |
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| 基金项目： | 国家自然科学基金(No.60736042); 河北省自然科学基金(No.A2010000004); 河北省重点学科资助项目 |
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| 摘 要： | 通过把Berreman近似下任意形状的表面沟槽用傅里叶级数展开,写成正弦函数和的形式,将Fukuda等人的理论应用于双轴向列相液晶中,考虑表面弹性项的作用后得到了任意形状的沟槽对双轴液晶产生的方位锚定能。在一定的近似条件下得到约化锚定能随着沟槽的方向与液晶主指向矢之间的夹角的变化情况,讨论了双轴弹性常数对液晶易取向方向的影响。
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| 关 键 词： | 双轴向列相液晶 沟槽 傅里叶级数 锚定能 |
Effect of Grooved Surface with Arbitrary Shape on Anchoring Energy of Biaxial Nematic Liquid Crystal |
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| ZHENG Gui-li,LI Gen-tang,ZHANG Zhi-dong. Effect of Grooved Surface with Arbitrary Shape on Anchoring Energy of Biaxial Nematic Liquid Crystal[J]. Chinese Journal of Liquid Crystals and Displays, 2011, 26(2): 137-141. DOI: 10.3788/YJYXS20112602.0137 |
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| Authors: | ZHENG Gui-li LI Gen-tang ZHANG Zhi-dong |
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| Affiliation: | ZHENG Gui-li,LI Gen-tang,ZHANG Zhi-dong(School of Sciences,Hebei University of Technology,Tianjin 300401,China) |
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| Abstract: | Under the approximation of Berreman,any grooved surface with arbitrary shape can be described in terms of Fourier series.Based on the theory of Fukuda et al,the expression of anchoring energy with an additional term was obtained,taking into the surfacelike elastic term in biaxial nematic liquid crystal.The figures of reduced anchoring energies versus the angle between the direction of the grooves and main director were simulated under the different values of surfacelike elastic constant in certain cases and... |
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| Keywords: | biaxial nematic liquid crystal groove Fourier series anchoring energy |
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