Control of alignment direction of liquid crystals and anchoring strength: approach from liquid crystal materials
| Project/Area Number |
24560003
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | Akita University |
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Principal Investigator |
YAMAGUCHI Rumiko 秋田大学, 工学(系)研究科(研究院), 准教授 (30170799)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | ネマチック液晶 / 配向膜 / 高分子 / ラビング / アンカリング / ラビング処理 / 容易軸 / アンカリング力 |
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| Outline of Final Research Achievements |
Easy axes of rubbed polymers with aromatic sidechains have been investigated by using depends liquid crystals (LCs) which have different chemical structures of core substances, end substances and polar groups. Two LCs which align parallel and perpendicular to the rubbing direction are mixed and the alignment direction were clarified. Azimuthal anchoring energy is varied by using the LC mixture more than one order of magnitude. A selective adsorption of a certain liquid crystal material in the mixture is suggested on the alignment polymer.
In LC displays, LC mixtures with many different chemical structures are used. The alignment phenomena which cause the alignment direction variation and the decrease of the anchoring energy by mixing LCs may contribute to an image sticking and luminance non-uniformity (clouding, mura) in LC display.
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Report
(4 results)
Research Products
(28 results)
