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发明授权
US07361390B2 Liquid crystal panel and liquid crystal display apparatus 有权
液晶面板和液晶显示装置

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: 240 nm≦Re[590]≦350 nm  (1) 0.20≦Rth[590]/Re[590]≦0.80.  (2)
摘要（中）：

提供了一种具有在倾斜方向上具有改善的对比度和良好的显示均匀度的液晶面板，而不会由于偏振器的收缩应力或背光的热量引起的延迟值的偏移或不均匀性。 根据本发明实施例的液晶面板包括：液晶单元; 配置在液晶单元两侧的偏振片; 布置在一个偏振器和液晶单元之间的第一光学元件; 以及布置在另一个偏振器和液晶单元之间的第二光学元件，其中：第一光学元件包括含有降冰片烯系树脂并且满足下列表达式（1）和（2）的延迟膜; 并且第二光学元件具有实质上的光学各向同性：<？in-line-formula description =“In-line Formulas”end =“lead”？> 240nm <= Re [590] <= 350nm（1） -line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line formula”end =“lead”？> 0.20 <= Rth [590] / Re [590] <= 0.80。 （2）<？in-line-formula description =“In-line Formulas”end =“tail”？>

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