中国物理B ›› 2000, Vol. 9 ›› Issue (11): 837-840.doi: 10.1088/1009-1963/9/11/008

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A NEW METHOD TO ALIGN LIQUID CRYSTAL MOLECULES BY LINEAR PHOTO-POLYMERIZATION FOR LIQUID CRYSTAL DISPLAY

梁兆颜1, 方鲲1, 宣丽1, 黄锡珉1, 丁保全2, 卢然2, 赵英英2   

  1. (1)Changchun Institute of Optics, Fine Mechanics & Physics, Chinese Academy of Sciences, Changchun 130021, China; (2)Department of Chemistry, Jilin University, Changchun 130023, China
  • 收稿日期:2000-04-26 修回日期:2000-07-08 出版日期:2000-11-15 发布日期:2005-06-12
  • 基金资助:
    Project supported by Jilin Province Developmental Plan Committee of Sciences and Technology (Grant No. 19990515).

A NEW METHOD TO ALIGN LIQUID CRYSTAL MOLECULES BY LINEAR PHOTO-POLYMERIZATION FOR LIQUID CRYSTAL DISPLAY

Liang Zhao-yan (梁兆颜)a, Fang Kun (方鲲)a, Xuan Li (宣丽)a, Huang Xi-min (黄锡珉)a, Ding Bao-quan (丁保全)b, Lu Ran (卢然)b, Zhao Ying-ying (赵英英)b   

  1. a Changchun Institute of Optics, Fine Mechanics & Physics, Chinese Academy of Sciences, Changchun 130021, China; b Department of Chemistry, Jilin University, Changchun 130023, China
  • Received:2000-04-26 Revised:2000-07-08 Online:2000-11-15 Published:2005-06-12
  • Supported by:
    Project supported by Jilin Province Developmental Plan Committee of Sciences and Technology (Grant No. 19990515).

摘要: 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.

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.

Key words: liquid crystal, photo-polymerization, orientation, alignment

中图分类号:  (Molecular and microscopic models and theories of liquid crystal structure)

  • 61.30.Cz
61.30.Gd (Orientational order of liquid crystals; electric and magnetic field effects on order) 61.30.Hn (Surface phenomena: alignment, anchoring, anchoring transitions, surface-induced layering, surface-induced ordering, wetting, prewetting transitions, and wetting transitions) 78.20.Jq (Electro-optical effects)