A NEW METHOD TO ALIGN LIQUID CRYSTAL MOLECULES BY LINEAR PHOTO-POLYMERIZATION FOR LIQUID CRYSTAL DISPLAY |
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Authors: | Liang Zhao-yan Fang Kun Xuan Li Huang Xi-min Ding Bao-quan Lu Ran and Zhao Ying-ying |
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Institution: | Changchun Institute of Optics, Fine Mechanics & Physics, Chinese Academy of Sciences, Changchun 130021, China; Department of Chemistry, Jilin University, Changchun 130023, China |
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Abstract: | A new technique to uniformly align liquid crystal molecules is presented. The technique is based on producing an anisotropic surface on the glass substrate coated with photo-polymers by photo-polymerization of linear polarized UV-light. The orientation of liquid crystal molecules is governed by the direction of the polarized vector of UV-light. Using this method, we have studied the photo-polymer PSi-CM aligning LC 6710A molecules. The liquid crystal microscopic texture between crossed polarizers, optical retardation from liquid crystal layers and electro-optical properties of twisted nematic liquid crystal display cell are obtained, which was prepared with one side -photo-alignment and the other side-rebbed substrate. |
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Keywords: | liquid crystal photo-polymerization orientation alignment |
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