UV absorption anisotropy in hybrid aligned polymer stabilized liquid crystal cell

カテゴリ: 研究会(論文単位)

論文No: DEI16026

グループ名: 【A】基礎・材料・共通部門 誘電・絶縁材料研究会

発行日: 2016/01/13

タイトル(英語): UV absorption anisotropy in hybrid aligned polymer stabilized liquid crystal cell

著者名: Yamaguchi Rumiko(Akita University ),Inoue Koichi(Akita University ),Takasu Tomoya(Akita University ),Mitsuhashi Shota(Akita University)

著者名(英語): Rumiko Yamaguchi(Akita University ),Koichi Inoue(Akita University ),Tomoya Takasu(Akita University ),Shota Mitsuhashi(Akita University)

キーワード: liquid crystal|polymer stabilized|light scattering|smart glass|UV absorption|polymer morphology|liquid crystal|polymer stabilized|light scattering|smart glass|UV absorption|polymer morphology

要約(日本語): We have proposed a hybrid alignment nematic liquid crystal cell using a polymer stabilized technology. The cell shows a reverse mode scattering property and is transparent at any viewing angle in the off-state. The cell turns to opaque in the on-state and has an asymmetrical scattering property at incident angles. Applying the cell to a smart glass, the cell can selectively scatter a midday sunlight with a function of window blinds. When using liquid crystal materials with UV absorption anisotropy, a UV penetration length from a planer alignment side depth should be shorter than that from a homeotropic alignment side in a polymerization process. Therefore, the UV penetration length is estimated in liquid crystal materials with large and small UV absorption anisotropy, and electro-optical properties are investigated. Polymer morphologies are observed by using SEM. The UV irradiation from a homogeneous alignment substrate side causes a polymer rich layer near the substrate and the stronger scattering in the on-state when the liquid crystal has large UV absorption anisotropy.

要約(英語): We have proposed a hybrid alignment nematic liquid crystal cell using a polymer stabilized technology. The cell shows a reverse mode scattering property and is transparent at any viewing angle in the off-state. The cell turns to opaque in the on-state and has an asymmetrical scattering property at incident angles. Applying the cell to a smart glass, the cell can selectively scatter a midday sunlight with a function of window blinds. When using liquid crystal materials with UV absorption anisotropy, a UV penetration length from a planer alignment side depth should be shorter than that from a homeotropic alignment side in a polymerization process. Therefore, the UV penetration length is estimated in liquid crystal materials with large and small UV absorption anisotropy, and electro-optical properties are investigated. Polymer morphologies are observed by using SEM. The UV irradiation from a homogeneous alignment substrate side causes a polymer rich layer near the substrate and the stronger scattering in the on-state when the liquid crystal has large UV absorption anisotropy.

原稿種別: 英語

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