- 专利标题: Liquid crystal display device
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申请号: US12560770申请日: 2009-09-16
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公开(公告)号: US08497002B2公开(公告)日: 2013-07-30
- 发明人: Chikae Matsui , Noboru Kunimatsu , Hidehiro Sonoda
- 申请人: Chikae Matsui , Noboru Kunimatsu , Hidehiro Sonoda
- 申请人地址: JP Chiba JP Hyogo-Ken
- 专利权人: Hitachi Displays, Ltd.,Panasonic Liquid Crystal Display Co. Ltd.
- 当前专利权人: Hitachi Displays, Ltd.,Panasonic Liquid Crystal Display Co. Ltd.
- 当前专利权人地址: JP Chiba JP Hyogo-Ken
- 代理机构: Antonelli, Terry, Stout & Kraus, LLP.
- 优先权: JP2008-235900 20080916
- 主分类号: C09K19/00
- IPC分类号: C09K19/00 ; G02F1/1337
摘要:
An alignment film is given a 2-layer structure comprising a photoalignment film that is photoalignable and a low-resistivity alignment film whose resistivity is smaller than that of the photoalignment film. The photoalignment film is formed by a polyimide whose precursor is polyamide acid alkyl ester, the number molecular weight of the photoalignment film is large, and the stability of alignment of the photoalignment film by photoalignment is excellent. The low-resistivity alignment film is formed by a polyimide whose precursor is polyamide acid, the number molecular weight of the low-resistivity alignment film is small, and the resistivity of the low-resistivity alignment film is small. The 2-layer structure alignment film can be maintaining an excellent photoalignment characteristic, so DC afterimages can be controlled.
公开/授权文献
- US20100066961A1 LIQUID CRYSTAL DISPLAY DEVICE 公开/授权日:2010-03-18
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