| 表面弹性项K13对液晶盒临界场强的影响和实验测定 |
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| 引用本文： | 关荣华,王翠茹,于慧,康文秀,淮俊霞,杨国琛.表面弹性项K13对液晶盒临界场强的影响和实验测定[J].中国物理 B,2005,14(2):386-392. |
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| 作者姓名： | 关荣华 王翠茹 于慧 康文秀 淮俊霞 杨国琛 |
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| 作者单位： | Department of Applied Physics, North China Electric Power University, Baoding 071003, China;College of Computer Science and Technology, North China Electric Power University, Baoding 071003, China;Institute of Physics, Hebei University of Technology, Tianjin 300130, China;Department of Applied Physics, North China Electric Power University, Baoding 071003, China;Institute of Physics, Hebei University of Technology, Tianjin 300130, China;Institute of Physics, Hebei University of Technology, Tianjin 300130, China |
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| 基金项目： | Project supported by the Theoretical Physics Special Foundation of the National Natural Science of China (Grant No 10447107), and the Doctoral Foundation of North China Electric Power University, China (Grant No 20041210). |
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| 摘 要： | 以修正后的Rapini-Papoular公式为基础，得到了有表面弹性能K13存在时，弱锚定向列液晶盒指向矢满足的方程和边界条件。用解析推导和数值计算的方法，详细研究了K13对阈值场强和饱和场强的影响。在理论上给出了检验K13是否存在的一种新方法及用沿面平行校列的弱锚定楔型液晶盒测定K13值的实验方案，并通过数值实验证实了本文所给方法的可行性。
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| 关 键 词： | 阈值场强 饱和场强 表面弹性项K13 实验测定 |
| 收稿时间： | 4/7/2004 12:00:00 AM |
Influences of the surface elastic energy term K13 on the critical fields of liquid crystal cells and experimental measurement of K13 |
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| Guan Rong-Hu,Wang Chui-Ru,Yu Hui,Kang Wen-Xiu,Huai Jun-Xia and Yang Guo-Chen.Influences of the surface elastic energy term K13 on the critical fields of liquid crystal cells and experimental measurement of K13[J].Chinese Physics B,2005,14(2):386-392. |
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| Authors: | Guan Rong-Hu Wang Chui-Ru Yu Hui Kang Wen-Xiu Huai Jun-Xia and Yang Guo-Chen |
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| Institution: | College of Computer Science and Technology, North China Electric Power University, Baoding 071003, China; Department of Applied Physics, North China Electric Power University, Baoding 071003, China; Institute of Physics, Hebei University of Technology, Tianjin 300130, China |
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| Abstract: | Based on the modified formula of Rapini—Papoular, the equation and boundary condition of the director of weak anchoring nematic liquid crystal (NLC) cell have been obtained in the case of existence of the surface elastic energy term K13. The influences of K13 on the threshold field and the saturation field have been studied in detail with the methods of analytical derivation and numerical calculation. A new method of checking whether K13 exists or not is given in theory. Combining with the previous work, we also propose an experimental plan to measure the value of K13 with a wedge-shaped planar-aligned weak anchoring NLC cell. The numerical experiments are carried out to verify the feasibility of our method. |
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| Keywords: | threshold field saturation field surface elastic term K13 experimental measurement |
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