Optical alignment film, its manufacturing method, and liquid crystal display device

Abstract

The present disclosure relates to the field of liquid crystal display technology, and provides an optical alignment film, its manufacturing method, and a liquid crystal display device. The method includes steps of: forming an optical alignment thin film on a substrate; aligning the optical alignment thin film by irradiating the optical alignment thin film with a polarized light beam through a mask plate, the mask plate including a transparent region and a non-transparent region beyond the transparent region, the polarized light beam passing through the transparent region to irradiate the optical alignment thin film; and removing the optical alignment thin film corresponding to the non-transparent region, so as to obtain the patterned optical alignment film.

Dependencies are inferred from the claim text.