发明申请
- 专利标题： Elliptical Polarizer and Vertical Alignment Type Liquid Crystal Display Device Comprising the Same
- 专利标题（中）： 椭圆偏振器和垂直对准型液晶显示装置包括它
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申请号： US12515107申请日： 2007-10-30
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公开(公告)号： US20100026936A1公开(公告)日： 2010-02-04
- 发明人: Tetsuya Uesaka , Satoru Ikeda
- 申请人： Tetsuya Uesaka , Satoru Ikeda
- 申请人地址： JP Minato-ku, Tokyo
- 专利权人： NIPPON OIL CORPORATION
- 当前专利权人： NIPPON OIL CORPORATION
- 当前专利权人地址： JP Minato-ku, Tokyo
- 优先权： JP2006-311743 20061117; JP2006-311744 20061117
- 国际申请： PCT/JP2007/071455 WO 20071030
- 主分类号： G02F1/1347
- IPC分类号： G02F1/1347 ; G02B5/30 ; G02F1/13
摘要：
An elliptical polarizer with excellent viewing angle characteristics is provided which comprises at least a first polarizer, a first optical anisotropic layer, a second optical anisotropic layer, and a third optical anisotropic layer, laminated in this order, wherein the first optical anisotropic layer satisfies [1] 50≦Re1≦500, the second optical anisotropic layer satisfies [2] 0≦Re2≦20 and [3] −500≦Rth2≦−30, and the third optical anisotropic layer satisfies [4] 100≦Re 3≦180 wherein Re and Rth indicate the retardation values in the plane and thickness direction, respectively, of each of the optical anisotropic layers.
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