Influence of the two-directionally-rubbed substrate on the alignment of liquid crystals |
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| Authors: | Chi-Yen Huang Yao-Sheng Huang Sih-Jheng Yeh |
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| Affiliation: | a Institute of Photonics, National Changhua University of Education, Changhua, Taiwan 500, Republic of China
b Department of Physics, National Changhua University of Education, Changhua, Taiwan 500, Republic of China |
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| Abstract: | The alignment of liquid crystals (LCs) on a two-directionally-rubbed substrate is investigated. The two-directionally-rubbed substrate distorts and frustrates the orientation of the LCs next to it, and hence influences the order parameter of the LC cell. Experimental findings indicate that the rubbing strengths in the different rubbing directions and the cell thickness significantly affect the order parameter, and hence affect the electro-optical response of the LC cell. |
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| Keywords: | Liquid crystal Order parameter Easy axis Rub |
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