LIQUID CRYSTAL ALIGNMENT AGENT FOR FORMING LIQUID CRYSTAL ALIGNMENT FILM OF PHOTO ALIGNMENT SYSTEM, LIQUID CRYSTAL ALIGNMENT FILM, LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME, POLYMER, AND DIAMINE

摘要

To provide a liquid crystal alignment agent capable of forming an alignment film exhibiting high liquid crystal alignment and high transmittance, a liquid crystal display device using the alignment film, and a novel photosensitive diamine as a raw material of a polymer used for a liquid crystal aligning agent.SOLUTION: A liquid crystal aligning agent for photo alignment which contains a polymer which has a structural unit containing a photosensitive group represented by the following formula (1); in the formula (1), Rand Rare, independently, hydrogen or alkyl having 1 to 10 carbon atoms; the bond whose bonding position is not fixed to any carbon constituting the ring indicates that the bonding position in the ring is arbitrary, and the hydrogen of the benzene ring may be substituted by a substituent.SELECTED DRAWING: None