Optical film, polarizing plate, and image display device

Abstract

An object of the present invention is to provide an optical film, a polarizing plate, and an image display device, in which a liquid crystal cured layer has excellent aligning properties and adhesiveness between a substrate and an alignment film is favorable. The optical film of the present invention includes a substrate, an alignment film provided on the substrate, and a liquid crystal cured layer provided on the alignment film, in which the alignment film is a photo-alignment film formed of a composition for forming an alignment film, which contains a polymer (I) having a photo-aligned group and two or more different polymerizable groups, a mixed region containing a component derived from the polymer (I) is provided in a surface layer region of the substrate on an alignment film side, and a thickness of the mixed region is more than 100 nm and less than 500 nm.

Dependencies are inferred from the claim text.