发明名称 LIQUID CRYSTAL DISPLAY DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide a liquid crystal display device with a liquid crystal cell in which a contrast ratio in an oblique direction, a color shift amount in an oblique direction, and the feeling of a rough surface are improved. <P>SOLUTION: Regarding an IPS (in-plane switching) type liquid crystal display device where a pair of polarization plates each composed of a polarizer and two polarization plate protective films sandwiching the same are arranged on both the sides of a liquid crystal cell, in the polarization plate protective film on the cell side of the polarization plate arranged at the cell on the electrode side, Ro is 0 to 5 nm, Rt is -5 to 5 nm, and film thickness is 20 to 60 &mu;m, and, in the polarization plate protective film on the cell side of the polarization plate arranged at the cell on the non-electrode side, Ro is 0 to 5 nm, Rt is 30 to 80 nm, and also, film thickness is 30 to 90 &mu;m. <P>COPYRIGHT: (C)2008,JPO&INPIT
申请公布号 JP2008102479(A) 申请公布日期 2008.05.01
申请号 JP20070039146 申请日期 2007.02.20
申请人 KONICA MINOLTA OPTO INC 发明人 OKA SHIGEKI;TACHIBANA NORIKI
分类号 G02F1/1335;G02B5/30;G02F1/13363;G02F1/1343 主分类号 G02F1/1335
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