发明名称 Liquid crystal panel and liquid crystal display apparatus
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 norbornene-based resin and satisfying the following expressions (1) and (2); and the second optical element has substantially optical isotropy: <?in-line-formulae description="In-line Formulae" end="lead"?>240 nm<=Re[590]<=350 nm (1)<?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>0.20<=Rth[590]/Re[590]<=0.80. (2)<?in-line-formulae description="In-line Formulae" end="tail"?>
申请公布号 US7361390(B2) 申请公布日期 2008.04.22
申请号 US20050228476 申请日期 2005.09.19
申请人 NITTO DENKO CORPORATION 发明人 YODA KENJI;YANO SHUUJI;KOISHI NAOKI;HAYASHI MASAKI
分类号 G02F1/13363 主分类号 G02F1/13363
代理机构 代理人
主权项
地址