发明授权
- 专利标题: Alignment film, method for fabricating the alignment film, liquid crystal device, and projection type display device
- 专利标题(中): 取向膜,取向膜的制造方法,液晶装置和投影型显示装置
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申请号: US10305985申请日: 2002-11-29
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公开(公告)号: US06844905B2公开(公告)日: 2005-01-18
- 发明人: Shuhei Yamada , Yutaka Tsuchiya
- 申请人: Shuhei Yamada , Yutaka Tsuchiya
- 申请人地址: JP Tokyo
- 专利权人: Seiko Epson Corporation
- 当前专利权人: Seiko Epson Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Oliff & Berridge, PLC
- 优先权: JP2001-369208 20011203; JP2002-338071 20021121
- 主分类号: G02F1/13
- IPC分类号: G02F1/13 ; G02F1/1337
摘要:
The invention provides an alignment film that is provided with a high alignment control force to a target molecule and less likely to cause problems to an element during the formation of the alignment film. An alignment film has a configuration in which, on a first alignment layer, a second alignment film layer that is uniform in the in-plane anisotropy more than the first alignment film thereof and aligned along surface alignment of the first alignment film. The first alignment film layer can be formed of, for instance, a polyimide film whose rubbing density is 200 or less, and the second alignment film layer can be formed by use of an ion deposition method with an acryl monomers as a deposition material. A liquid crystal device provided with the alignment film like this becomes higher in the alignment control force to a liquid crystal.
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