Patent ID: 8309187

Claim:
An optical film comprising a plurality of optically anisotropic layers which are laminated, wherein the optically anisotropic layer comprises: a photoalignment layer (A) in which a liquid crystal aligning capability has been generated by means of photoirradiation; and a polymer layer (B), which contains a liquid crystal compound that has a polymerizable group, and which is obtained by polymerization in a state where it has been aligned by the photoalignment layer (A), wherein the photoalignment layer (A) and the polymer layer (B) are bonded by covalent bonding, and said photoalignment layer (A) contains a dichromatic dye that has a polymerizable group, whose mass average molecular weight is 1×10 2 to 5×10 3 ; or a dichromatic dye, whose mass average molecular weight is 1×10 2 to 5×10 3 , and a polymerizable compound whose mass average molecular weight is 50 to 1000.