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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2000.1
- 수록면
- 197 - 198 (2page)
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A surface-assisted photo-control of the liquid crystal (LC) alignment has been achieved by modifying the topmost surface of the polyimide film with photo-reactive molecules. Recently, photo-alignment technique using a thin film of poly(vinyl cinnamates) have been reported. However their commercial potentiality is limited by their low thermal stability. To enhance thermal stability, we synthesized the chalcone derivatives as the photo-reactive molecules and introduced the materials on the surface-modified polyimide film.. We identified that the photo-chemical reaction of the chalcone derivatives occur in few minutes with irradiation of UV light. The photo-alignment characteristics of the modified polyimide films treated by polarized UV light and their LC cells are investigated as a function of exposure dose.
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The Linearly polarized UV Light induced Liquid-Crystal Alignment on Polyimide Modified with Chalcone Derivatives
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Alignment of smectic liquid crystals on newly synthesized photo-reactive polyimide with chalcone moiety
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Photo-decomposable Polyimides for Liquid Crystal Alignment Layers
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The Liquid Crystal Alignment using Photo-degradation of Strongly Rubbed Main Chain Type Polyimide
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