- 专利标题: Liquid crystal light control element
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申请号: US17765961申请日: 2020-09-29
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公开(公告)号: US11966120B2公开(公告)日: 2024-04-23
- 发明人: Kanako Suzuki , Masaaki Katayama , Masafumi Takahashi , Kazuyoshi Hosaka
- 申请人: Nissan Chemical Corporation
- 申请人地址: JP Chuo-ku
- 专利权人: Nissan Chemical Corporation
- 当前专利权人: Nissan Chemical Corporation
- 当前专利权人地址: JP Chuo-ku
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP 19182234 2019.10.02
- 国际申请: PCT/JP2020/036980 2020.09.29
- 国际公布: WO2021/065933A 2021.04.08
- 进入国家日期: 2022-05-16
- 主分类号: G02F1/1337
- IPC分类号: G02F1/1337 ; C08G73/10 ; C09K19/56 ; C09K19/60 ; G02F1/137
摘要:
A liquid crystal light control element that controls a light absorption state by voltage application, the liquid crystal light control element including: a liquid crystal layer containing a liquid crystal composition between a pair of substrates each having an electrode; and a liquid crystal alignment film that is provided on at least one of the substrates and aligns a liquid crystal vertically,
wherein the liquid crystal composition contains a liquid crystal and a dichroic dye,
the liquid crystal alignment film is obtained from a liquid crystal aligning agent containing a polyimide precursor in which a diamine having a specific side chain is used as a part of the raw material or a polyimide obtained by imidizing the polyimide precursor, and
the proportion of the diamine used is 50 to 100 mol % based on the entire diamine component.
wherein the liquid crystal composition contains a liquid crystal and a dichroic dye,
the liquid crystal alignment film is obtained from a liquid crystal aligning agent containing a polyimide precursor in which a diamine having a specific side chain is used as a part of the raw material or a polyimide obtained by imidizing the polyimide precursor, and
the proportion of the diamine used is 50 to 100 mol % based on the entire diamine component.
公开/授权文献
- US20230028353A1 LIQUID CRYSTAL LIGHT CONTROL ELEMENT 公开/授权日:2023-01-26
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