Patent ID: 8877303

Claim:
A liquid crystal display device, comprising: a TFT substrate where an alignment film is formed on a pixel having a pixel electrode and a TFT; an opposed substrate opposed to the TFT substrate and where an alignment film is formed on a color filter; and liquid crystals interposed between the alignment film of the TFT substrate and the alignment film of the opposed substrate, wherein each of the alignment films is subjected to optical alignment processing, and each of the alignment films uses: a first alignment film material comprising a dehydrated condensate of 1,2-bis(4-aminophenyl)ethane and 1,3-dimethyl cyclobutane tetracarboxylic acid dianhydride or a first alignment film material acquired by esterifying the dehydrated condensate of 1,2-bis(4-aminophenyl)ethane and 1,3-dimethyl cyclobutane tetracarboxylic acid dianhydride, and a second alignment film material comprising a dehydrated condensate of paraphenyldiamine and 1,3-dimethyl cyclobutane tetracarboxylic acid dianhydride or a second alignment film material acquired by esterifying the dehydrated condensate of paraphenyldiamine and 1,3-dimethyl cyclobutane tetracarboxylic acid dianhydride.