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http://dx.doi.org/10.4313/TEEM.2009.10.4.140

Controllable Pretilt Angles for Liquid Crystal Molecules using a Rubbing Treated Mixture Layer  

Kim, Dae-Hyun (Department of Electrical and Electronic Engineering, Yonsei University)
Park, Hong-Gyu (Department of Electrical and Electronic Engineering, Yonsei University)
Kim, Young-Hwan (Department of Electrical and Electronic Engineering, Yonsei University)
Kim, Byoung-Yong (Department of Electrical and Electronic Engineering, Yonsei University)
Ok, Chul-Ho (Department of Electrical and Electronic Engineering, Yonsei University)
Seo, Dae-Shik (Department of Electrical and Electronic Engineering, Yonsei University)
Publication Information
Transactions on Electrical and Electronic Materials / v.10, no.4, 2009 , pp. 140-142 More about this Journal
Abstract
We have investigated the continuous pretilt angle generation for liquid crystals using a rubbing treated mixture layer consisting of homogeneous and homeotropic polyimides. Various pretilt angles in the range from $0^{\circ}$ to $60^{\circ}$ were achieved as a function of the concentration of homeotropic PI. The transmittance characteristics used to measure the pretilt angle showed that the pretilt angles were measured with a high reliability. We observed uniform liquid crystal alignment on the rubbing treated mixture layer.
Keywords
Rubbing; Pretilt angle; Mixture; LC alignment;
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Times Cited By KSCI : 1  (Citation Analysis)
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