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

doi:10.1088/1009-1963/9/11/008

Abstract

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.

Keywords: liquid crystal photo-polymerization orientation alignment

Received: 26 April 2000
Revised: 08 July 2000
Accepted manuscript online:

PACS:	61.30.Cz	(Molecular and microscopic models and theories of liquid crystal structure)
	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)

Fund: Project supported by Jilin Province Developmental Plan Committee of Sciences and Technology (Grant No. 19990515).

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Liang Zhao-yan (梁兆颜), Fang Kun (方鲲), Xuan Li (宣丽), Huang Xi-min (黄锡珉), Ding Bao-quan (丁保全), Lu Ran (卢然), Zhao Ying-ying (赵英英) A NEW METHOD TO ALIGN LIQUID CRYSTAL MOLECULES BY LINEAR PHOTO-POLYMERIZATION FOR LIQUID CRYSTAL DISPLAY 2000 Chinese Physics 9 837

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

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