Patent ID: 8514358

Claim:
A liquid crystal display device comprising: a pair of substrates, a liquid crystal layer including liquid crystal molecules disposed between the pair of substrates, an alignment layer disposed above at least one of the substrates; a polymer disposed on the alignment layer; a plurality of scanning lines and a plurality of signal lines crossing the scanning lines, a TFT connected to one of the scanning lines and one of the signal lines, and a pixel electrode connected to the TFT and applying driving voltages to the liquid crystal molecules in an area defined by the pixel electrode, wherein the polymer is formed through polymerization of monomers, which is different from monomers constituting the alignment layer, by active energy ray irradiation, or by both active energy ray irradiation and heat with or without applying voltages to the liquid crystal molecules, and is arranged to align the liquid crystal molecules without rubbing so that the liquid crystal molecules in the area form a plurality of domains when the driving voltages are applied from the TFT, and the amount of the monomer in the liquid crystal layer with un-polymerized state is not more than 0.05 parts by weight per 100 parts by weight of the liquid crystal layer.