Patent ID: 7872718

Claim:
A production method of a liquid crystal display device, the liquid crystal display device comprising: a pair of opposed substrates; a liquid crystal layer formed between the pair of opposed substrates; and an alignment film arranged on a liquid crystal layer side surface of at least one of the pair of opposed substrates, and the liquid crystal display device having two or more regions which differ in alignment azimuth in a pixel, wherein the production method comprises an exposure step of exposing the alignment film in such a way that a substrate plane is divided into two or more exposure regions and each of the exposure regions is exposed through a photomask having transmissive parts and a shielding part, and in the exposure step, exposure is performed while scanning a combination of a light source and the photomask, and/or the substrate to be exposed, in such a way that adjacent two exposure regions have an overlapping exposure region where the adjacent two exposure regions partly overlap with each other, the photomask has a halftone part, the halftone part includes a transmissive part having an aperture ratio smaller than that of a transmissive part in a part other than the halftone part, and the halftone part is arranged corresponding to the overlapping exposure region.