发明申请
- 专利标题： Optical Film, Elliptically Polarizing Plate, Circularly Polarizing Plate, Liquid Crystal Display Element, and Method of Producing Optical Film
- 专利标题（中）： 光学膜，椭圆偏光板，圆偏光板，液晶显示元件，以及制造光学膜的方法
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申请号： US11793746申请日： 2005-12-27
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公开(公告)号： US20080036946A1公开(公告)日： 2008-02-14
- 发明人: Yoshiyuki Ono , Kazunori Maruyama
- 申请人： Yoshiyuki Ono , Kazunori Maruyama
- 申请人地址： JP Tokyo
- 专利权人： DAINIPPON INK AND CHEMICALS, INC.
- 当前专利权人： DAINIPPON INK AND CHEMICALS, INC.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2004-376235 20041227
- 国际申请： PCT/JP05/23904 WO 20051227
- 主分类号： G02F1/1335
- IPC分类号： G02F1/1335 ; G02B5/30 ; G02F1/13
摘要：
An optical film 10 of the present invention includes a plurality of optically anisotropic layers 13 which are laminated, wherein the optically anisotropic layer including: a photoalignment layer (A) 11, in which a liquid crystal aligning capability has been generated by means of photoirradiation; and a polymer layer (B) 12, which contains a liquid crystal compound that has a polymerizable group, and which is obtained by polymerization in a state where it has been aligned by the photoalignment layer (A) 11, wherein the photoalignment layer (A) 11 and the polymer layer (B) 12 are bonded by covalent bonding. The plurality of optically anisotropic layers 13 may be an optically anisotropic layer 13 having a function of a one-half wavelength plate, and an optically anisotropic layer 13 having a function of a one-quarter wavelength plate.