发明名称 LAMINATED OPTICAL FILM, LIQUID CRYSTAL PANEL USING LAMINATED OPTICAL FILM, LIQUID CRYSTAL DISPLAY DEVICE, AND IMAGE DISPLAY DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide a laminated optical film that achieves high contrast while improving view angle property, suppresses a color shift, achieves excellent color reproducibility, and excellently prevents light leak at the time of black display, and also to provide a liquid crystal panel using the laminated optical film. <P>SOLUTION: The laminated optical film has a light polarizer, a first optical compensation layer, a second optical compensation layer, and a third optical compensation layer in this order. The first optical compensation layer has a refractive-index distribution of nx>nz>ny, and its in-plane phase difference is 50-300 nm. The second optical compensation layer has a refractive-index distribution of nx>ny=nz, and shows the characteristic in which its in-plane phase difference becomes smaller as the wavelength becomes shorter, and the in-plane phase difference is 100-180 nm. The third optical compensation layer has a refractive-index distribution of nx=ny>nz, its in-plane phase difference is 0-20 nm, and the phase difference in the thickness direction is 30-300 nm. <P>COPYRIGHT: (C)2008,JPO&INPIT
申请公布号 JP2008111978(A) 申请公布日期 2008.05.15
申请号 JP20060294581 申请日期 2006.10.30
申请人 NITTO DENKO CORP 发明人 SHUDO SHUNSUKE;KOZONOI NOBUYUKI;KAWAMOTO IKURO;MOTOMURA HIRONORI
分类号 G02B5/30;G02F1/13363;G09F9/00 主分类号 G02B5/30
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