Patent ID: 8821989

Claim:
A method for manufacturing an optical laminated body having a substrate and a polarizing film that contains a lyotropic liquid crystal compound and is formed on the substrate, the method comprising: a step (A) of applying a coating liquid containing the lyotropic liquid crystal compound and a solvent onto the substrate and forming a coat film with the lyotropic liquid crystal compound orientated in an orthogonal direction with reference to a coating direction of the coating liquid; and a step (B) of applying a magnetic field to the coat film in a direction substantially orthogonal direction with reference to the coating direction of the coating liquid, whereby the magnetic field is applied substantially parallel to an orientation direction of the lyotropic liquid crystal compound to obtain a film surface where a lyotropic liquid crystal compound is uniformly orientated, wherein defective orientation of the lyotropic liquid crystal compound existing in the coat film is prevented from spreading widely, through step (B).