公开(公告)号：US20160280999A1

公开(公告)日：2016-09-29

申请号：US15172282

申请日：2016-06-03

Applicant: FUJIFILM Corporation

Inventor： Shinichi MORISHIMA ,  Nobutaka IWAHASHI ,  Masashi OGIYAMA ,  Minoru UEMURA

IPC: C09K19/60 ,  G02F1/1335 ,  G02B5/30

CPC classification number: C09K19/601 ,  B05D3/0218 ,  B05D3/062 ,  C09B29/081 ,  C09B29/083 ,  C09B31/043 ,  C09B31/18 ,  C09B31/30 ,  C09B33/22 ,  C09B56/02 ,  C09B56/06 ,  G02B1/10 ,  G02B5/30 ,  G02B5/3016 ,  G02F1/133528 ,  G02F1/133788

Abstract: Provided is a polarizing film showing high dichroism comprising a substrate, and a photo alignment film and a light absorption anisotropic film laminated on the substrate in this order. The light absorption anisotropic film is obtained by fixing the alignment of a dichroic dye composition comprising at least one nematic liquid crystalline azo dichroic dye and in X-ray diffraction measurement thereof, diffraction peaks derived from periodic structure along a vertical direction to the alignment axis are present, the period indicated by at least one of the diffraction peaks is 3.0 to 15.0 Å and an intensity of the diffraction peak does not show a maximum value in the range of ±70° of the film normal line direction in a plane vertical to the alignment axis.

Abstract translation: 本发明提供了一种偏光膜，其具有高的二色性，其包含基板，以及依次层叠在基板上的光取向膜和光吸收性各向异性膜。 光吸收各向异性膜是通过固定包含至少一种向列型液晶偶氮二色性染料的二色性染料组合物的取向而获得的，并且在其X射线衍射测量中，沿着垂直方向衍生自周期性结构的衍射峰与取向轴是 存在时，由至少一个衍射峰表示的周期为3.0〜15.0，并且在垂直于垂直于该方向的平面的膜法线方向的±70°的范围内，衍射峰的强度不显示最大值 对齐轴。