Patent ID: 8189151

Claim:
A liquid crystal display device comprising: a first substrate, a second substrate, a liquid crystal layer provided between the substrates, a first alignment film provided on the liquid crystal layer side surface of the first substrate, and a second alignment film provided on the liquid crystal layer side surface of the second substrate, wherein the liquid crystal layer includes liquid crystal molecules with negative dielectric anisotropy, the first alignment film and the second alignment film align the liquid crystal molecules substantially vertically to the alignment film surfaces and, the first alignment film and the second alignment film align the liquid crystal molecules near the first alignment film and the second alignment film such that alignment directions of the liquid crystal molecules near the first alignment film and alignment direction of the liquid crystal molecules near the second alignment film are perpendicular to each other, and the liquid crystal molecules form a twist structure between the first and the second substrates, the first alignment film and the second alignment film are photo-alignment films made of a material having a photosensitive group, an alignment direction of the first alignment film is substantially parallel to an absorption axis of a first polarizer on the first substrate, and an alignment direction of the second alignment film is substantially parallel to an absorption axis of a second polarizer on the second substrate.