Control of liquid crystal pretilt angle by anchoring competition of the stacked alignment layers

We proposed a method to control the pretilt angle of liquid crystals by stacking of a vertical alignment layer on a planar alignment layer. The pretilt angle can be controlled over the full range (0°–90°) depending on the thickness of the vertical alignment layer. We also proposed a numerical model...

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Bibliographic Details
Published in:Applied physics letters 2009-01, Vol.94 (4)
Main Authors: Lee, You-Jin, Gwag, Jin Seog, Kim, Young-Ki, Jo, Soo In, Kang, Seung-Gon, Park, Young Ran, Kim, Jae-Hoon
Format: Article
Language:English
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Summary:We proposed a method to control the pretilt angle of liquid crystals by stacking of a vertical alignment layer on a planar alignment layer. The pretilt angle can be controlled over the full range (0°–90°) depending on the thickness of the vertical alignment layer. We also proposed a numerical model to describe the physical mechanism based on the anchoring competition between liquid crystal, planar, and vertical polyimide alignment layers.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3068003