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Invention Application
US20070048459A1 Polarizing plate and liquid crystal display apparatus using the same 失效
偏光板和使用其的液晶显示装置

Polarizing plate and liquid crystal display apparatus using the same
Abstract:
A polarizing plate includes two transparent supports A and B; and a polarizer sandwiched between the two transparent supports A and B; wherein (i) the transparent support A is a stretched cellulose ester film (a) which contains a non-phosphoric acid ester plasticizer and substantially does not contain a phosphoric acid ester plasticizer, and wherein (ii) the transparent support B is a stretched cellulose ester film (b) which has a retardation value R0 of from 0 nm to 10 nm and a retardation value Rt of from −30 nm to 20 nm, and the retardation value R0 and the retardation value Rt are defined by the following formulas (I) and (II): Ro=(nx−ny)×d  Formula (I): Rt={(nx+ny)/2−nz}×d.  Formula (II):
Abstract(Chinese):

偏振片包括两个透明支撑体A和B; 夹在两个透明支撑体A和B之间的偏振片; 其中（i）透明载体A是含有非磷酸酯增塑剂并基本上不含磷酸酯增塑剂的拉伸纤维素酯膜（a），其中（ii）透明载体B是拉伸的纤维素 酯膜（b），其延迟值R 0 <0> 0nm至10nm，延迟值R 30nm至20nm，并且 延迟值R 0＆lt;＆gt;和延迟值R＆gt;由下式（I）和（II）定义：<？in-line-formula description =“In- 线公式“end =”lead“？> Ro =（nx-ny）xd公式（I）：<？in-line-formula description =”In-line Formulas“end =”tail“？> <？in-line -formulae description =“In-line Formulas”end =“lead”？> Rt = {（nx + ny）/ 2-nz} xd。 公式（II）：<？in-line-formula description =“In-line Formulas”end =“tail”？>

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