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Molecular Crystals and Liquid Crystals Volume 479, 2007 - Issue 1
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Synthesis and New Materials

The Properties of Homeotropic Alignment Materials as the Side Chain Molecular Structure in Polyimides

Jae-Cheol Park Electronic Materials Division, Dongjin Semichem, Hwaseong-Si, Gyeonggi-Do, KoreaCorrespondence[email protected]
,
Dong-Ju Park Liquid Crystal Research Center, Department of Chemistry, Division of Natural Sciences, Konkuk University, Kwangjinku, Seoul, Korea
,
Kyung-Chul Son Liquid Crystal Research Center, Department of Chemistry, Division of Natural Sciences, Konkuk University, Kwangjinku, Seoul, Korea
&
Yong-Bae Kim Liquid Crystal Research Center, Department of Chemistry, Division of Natural Sciences, Konkuk University, Kwangjinku, Seoul, Korea
Pages 191/[1229]-203/[1241] | Published online: 22 Sep 2010
 
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Abstract

LCD (Liquid Crystal Display) screens are today's most commonly used displays and are available in a wide range of shapes, size, levels of quality, and models. VA-LCD is good to TV applications from among other LCD modes, owing to wide viewing angle, high contrast ratio and fast switching time. To apply for VA-LCDs, we have synthesized novel homeotropic alignment materials, which all generated high pretilt angles (> 88°) with and without rubbing. They showed good homeotropic alignment state too. In addition, response time was very fast. In this paper, we discussed the synthesis and alignment properties of new homeotropic alignment materials.

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