发明名称 PHASE DIFFERENCE PLATE, LAMINATED POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a liq. crystal display device with excellent visibility as for contrast, monochromatic display or the like in a broad visual angle by providing a thinner phase difference plate which effectively compensates for a double refractivity caused by a liq. crystal cell. SOLUTION: A liq. crystal display device is constituted by a phase difference plate, a laminated polarizing plate, and the phase difference plate and/or the polarizing plate at least on one side of a liq. crystal cell. The phase difference plate satisfies an expression Re: (nx-ny)d<20 nm and an expression Rz: (nz-nx)d<1000 nm, where nx and ny are refractive indexes in an intra-plane, nz is a main refractive index in a direction of the thickness, nx>ny and d is thickness. The laminated polarizing plate consists of a laminated body of the phase difference plate and a polarizing plate.
申请公布号 JP2000056131(A) 申请公布日期 2000.02.25
申请号 JP19980239477 申请日期 1998.08.10
申请人 NITTO DENKO CORP 发明人 SASAKI SHINICHI;SAIKI YUJI;KAWAHARA SATOSHI;YOSHIMI HIROYUKI
分类号 G02B5/30;G02F1/1335 主分类号 G02B5/30
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