发明申请
- 专利标题: Liquid crystal panel and liquid crystal display apparatus
- 专利标题(中): 液晶面板和液晶显示装置
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申请号: US11252736申请日: 2005-10-19
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公开(公告)号: US20060246231A1公开(公告)日: 2006-11-02
- 发明人: Naoki Koishi , Shuuji Yano , Kenji Yoda , Masaki Hayashi
- 申请人: Naoki Koishi , Shuuji Yano , Kenji Yoda , Masaki Hayashi
- 申请人地址: JP Ibaraki-shi
- 专利权人: NITTO DENKO CORPORATION
- 当前专利权人: NITTO DENKO CORPORATION
- 当前专利权人地址: JP Ibaraki-shi
- 优先权: JP2004-307563 20041022; JP2005-137046 20050510
- 主分类号: C09K19/00
- IPC分类号: C09K19/00
摘要:
A liquid crystal panel having improved contrast ratio in an oblique direction and good display evenness without causing shift or unevenness in retardation values due to shrinkage stress of a polarizer or heat of backlight is provided. A liquid crystal panel according to an embodiment of the present invention includes: a liquid crystal cell; a polarizer arranged on both sides of the liquid crystal cell; a first optical element arranged between one polarizer and the liquid crystal cell; and a second optical element arranged between the other polarizer and the liquid crystal cell, wherein: the first optical element comprises a retardation film containing a styrene-based resin and a polycarbonate-based resin and satisfying the following expressions (1) and (2); and the second optical element has substantially optical isotropy: 240 nm≦Re[590]≦350 nm (1) 0.20≦Rth[590]/Re[590]≦0.80 (2).
公开/授权文献
- US07264852B2 Liquid crystal panel and liquid crystal display apparatus 公开/授权日:2007-09-04
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