发明名称 DYESTUFF-BASED POLARIZING PLATE
摘要 PROBLEM TO BE SOLVED: To improve the color reproducibility of a liquid crystal display device sing a dyestuff-based polarizing plate. SOLUTION: The polarizing plate is provided which is formed by laminating a film with an optical compensating function on at least one surface of a polyvinyl alcohol-based resin film having dichroic dyestuffs adsorbed and aligned, and which has a 105 to 150°hue angle H and≤9 saturation C<SP>*</SP>when its parallel hue is represented on chromaticity coordinates (a<SP>*</SP>, b<SP>*</SP>). This polarizing plate has, preferably,≤3 saturation C<SP>*</SP>when orthogonal hue is represented on chromaticity coordinates (a<SP>*</SP>, b<SP>*</SP>). The film having the optical compensating function may be a film formed, for example, by coating a transparent base material with a liquid crystal compound. This liquid crystal compound may be, for example, discotic liquid crystal. When this polarizing plate is applied to a transmission type thin-film transistor liquid crystal display device, an image can be deterred from becoming yellowish. COPYRIGHT: (C)2004,JPO&NCIPI
申请公布号 JP2004251963(A) 申请公布日期 2004.09.09
申请号 JP20030039498 申请日期 2003.02.18
申请人 SUMITOMO CHEM CO LTD 发明人 HAYASHI SHIGETOSHI
分类号 G02B5/30;C09B33/22;C09B35/35;C09B45/24;C09B45/28;(IPC1-7):G02B5/30 主分类号 G02B5/30
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