公开(公告)号：US20110051052A1

公开(公告)日：2011-03-03

申请号：US12870205

申请日：2010-08-27

申请人： Tomoki Tasaka ,  Shinichi Morishima ,  Mitsuyoshi Ichihashi ,  Ryoji Goto

发明人： Tomoki Tasaka ,  Shinichi Morishima ,  Mitsuyoshi Ichihashi ,  Ryoji Goto

IPC分类号： G02F1/1335

CPC分类号： G02B5/3016 ,  C09B31/043 ,  C09B31/18 ,  C09B31/28 ,  C09B31/30 ,  C09B56/02 ,  C09B56/08 ,  C09B69/10 ,  C09B69/106

摘要： A polarizing film, satisfying DI′/P′≦4.3×10−4 which expresses relation between degree of polarization P′, and depolarization index DI′ calculated by the equation below is disclosed. X represents a value calculated by the equation below, provided that a polarizing plate having degree of polarization of P, the polarizing film, and a polarizing plate having degree of polarization P, having azimuths of transmission axes of a°, b° and c°, respectively, are stacked in this order as viewed from a light source, to give brightness written as [a/b/c]. DI ′ = 1 + 2  PP ′ + P 2 + X  ( P 2 - 1 ) P 2  ( 1 + X ) X = [ 0  /  0  /  0 ] [ 0  /  90  /  90 ]

摘要翻译： 公开了一种满足DI'/ P'＆nlE的偏光膜; 4.3×10-4，其表示由以下等式计算的偏振度P'和去极化指数DI'之间的关系。 X表示通过以下等式计算的值，条件是具有偏振度P的偏振片，偏振膜和具有偏振度P的偏振片P，透射轴的方位角为a°，b°和c° 分别从光源观察的顺序层叠，得到以[a / b / c]表示的亮度。 （1 + X）X = [0/0/0]]]>其中，P 1 = 1 + 2 PP'+ P 2 + X（P 2 -1） 90]