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1. 河北工业大学 理学院,河北 天津,300401
2. 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,130022
3. 中国科学院 研究生院 北京,100049
Received:25 May 2012,
Revised:05 July 2012,
Published:15 October 2012
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崔文静, 邢红玉, 张艳君, 叶文江, 张志东. 混合排列向列相液晶盒电容特性研究[J]. 液晶与显示, 2012,(5): 608-612
CUI Wen-jing, XING Hong-yu, ZHANG Yan-jun, YE Wen-jiang, ZHANG Zhi-dong. Capacitance Characteristics of Hybrid Aligned Nematic Liquid Crystal Cell[J]. , 2012,(5): 608-612
基于液晶弹性理论和变分原理
研究了强锚泊混合排列向列相液晶盒的电容特性
同时考虑了液晶挠曲电特性的影响。通过Matlab软件数值模拟得到了不同挠曲电系数下电压-电容曲线
当挠曲电系数和
e
11
+
e
33
≥0时
电容随电压线性增加;当
e
11
+
e
33
<
0时
电容随电压的增加先减小后增大。并且
随挠曲电系数绝对值的增加
挠曲电效应对电容的影响亦将增大。
Based on the elastic theory of liquid crystal and variation theory
the capacitance characteristics of the strong anchoring hybrid alignment nematic (HAN) liquid crystal cell is studied considering the flexoelectricity of liquid crystal. Through numerical simulation using the Matlab software
the induced capacitance-voltage curves for different flexoelectric coefficients are obtained. With the increase of the applied voltage
the capacitance increases linearly for
e
11
+
e
33
≥0; however
for
e
11
+
e
33
<
0
the capacitance begins to decreases and then increases with increasing the applied voltage. And
with the increase of absolute value of the flexoelectric coefficients
the influence of flexoelectric effect on the capacitance will be also enlarged.
王俊峰. 电工电子元器件的选择与测量 [M]. 北京: 机械工业出版社, 2010:57-65.
Morris S W. Measurements of the elastic constants of a liquid crystal. Vancouver: University of British Columbia, 1985.
Welford K R, Miners F, Sambles J R. A new technique for determining the dielectric constants of a nematic liquid crystal [J]. J. Phys. D: Appl. Phys., 1988, 21(9):1320-1325.
温庆祥, 黄锡珉, 何林, 等. C-V法液晶弹性常数的测定 [J]. 液晶与显示, 1993, 8(1): 73-77.
孔祥建, 荆海, 黄霞, 等. 一种改进的C-V方法对向列相液晶弹性常数k11、k33测量的理论研究 [J]. 液晶与显示, 2007, 22(5):587-590.
Murauski A, Chigrinov V, Muravsky A, et al. Determination of liquid-crystal polar anchoring energy by electrical measurements [J]. Phys. Rev. E, 2005, 71(6): 061707(1-5).
Nastishin Y A, Polak R D, Shiyanovskii S V, et al. Nematic polar anchoring strength measured by electric field techniques [J]. J. Appl. Phys., 1999, 86(8): 4199-4213.
Nie X Y, Lin Y H, Wu T X, et al. Polar anchoring energy measurement of vertically aligned liquid-crystal cells [J]. J. Appl. Phys., 2005, 98(1): 013516(1-5).
马群刚. TFT-LCD原理与设计 [M]. 北京: 电子工业出版社, 2012, 175-177.
邓婉玲. 多晶硅薄膜晶体管栅电容模型 [J]. 液晶与显示, 2011, 26(2):178-182.
崔文静, 邢红玉, 张艳君, 等. 挠曲电效应对向列相液晶盒电容的影响 [J]. 数值计算与计算机应用, 2012, 33(2):142-150.
Meyer R B. Piezoelectric effects in liquid crystal [J]. Phys. Rev. Lett., 1969, 22(18): 918-921.
谢毓章. 凝聚态物理学丛书: 液晶物理学 [M]. 北京: 科学出版社, 1998:61-66.
Sugimura A, Luckhurst G R, Ou-yang Z-C. Director deformation of a twisted chiral nematic liquid crystal cell with weak anchoring boundaries[J]. Phys. Rev. E, 1995, 52(1): 681-689.
张志东, 邵喜斌, 梁兆颜, 等. 电控双折射盒中指向矢分布的计算 [J]. 液晶与显示, 1997, 12(2): 91-99.
Takahashi T, Hashidate S, Nishijou H, et al. Novel measurement method for flexoelectric coefficients of nematic liquid crystals [J]. Jpn. J. Appl. Phys., 1998, 37(4A): 1865-1869.
Kischka C, Parry-Jones L A, Elston S J, et al. Measurement of the flexoelectric coefficient e1 and e3 in nematic liquid crystals [J]. Mol. Cryst. Liq. Cryst., 2008, 480(1): 103-110.
Kischka C, Elston S J, Raynes E P. Measurement of the sum (e1+e3) of the flexoelectric coefficients e1 and e3 of nematic liquid crystals using a hybrid nematic (HAN) cell [J]. Mol. Cryst. Liq. Cryst., 2008, 494(1): 93-100.
Sykulska H M, Parry-Jones L A, Elston S J. Measurement of flexoelectric coefficients in nematic liquid crystals using shallow grating devices [J]. Mol. Cryst. Liq. Cryst., 2005, 436(1): 267-279.
Brimicombe P D. Fast-Switching Nematic Liquid Crystal Devices. Oxford: University of Oxford, 2006.
Xing Hongyu, Ye Wenjiang, Zhang Zhidong, et al. Flexoelectric-Induced voltage shift in hybrid aligned nematic liquid crystal cell [J]. Commun. Theor. Phys.,2011, 55(5): 939-942.
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