POLARIZING FILM, DISPLAY DEVICE, AND PROCESS FOR PRODUCING SAME

摘要

Provided is a polarizing film showing high dichroism. A polarizing film comprising a substrate, and a photo alignment film and a light absorption anisotropic film laminated on the substrate in this order, wherein the light absorption anisotropic film has a content ratio of 30% by mass or less of a liquid crystalline non-colorable low molecular weight compound and is obtained by fixing the alignment of a dichroic dye composition comprising at least one nematic liquid crystalline azo dichroic dye; 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 15.0Å 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.