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NOVEL PHOTOALIGNING DIAMINE, PHOTOALIGNMENT AGENT OF LIQUID CRYSTAL INCLUDING THE SAME, PHOTOALIGNMENT FILM OF LIQUID CRYSTAL INCLUDING THE SAME, AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME
NOVEL PHOTOALIGNING DIAMINE, PHOTOALIGNMENT AGENT OF LIQUID CRYSTAL INCLUDING THE SAME, PHOTOALIGNMENT FILM OF LIQUID CRYSTAL INCLUDING THE SAME, AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME
A novel photo-diamine, a liquid crystal photoaligning agent containing it, a liquid crystal photo-alignment film and a liquid crystal display device are provided to improve optical alignment, voltage holding ratio, pretilt angle and residual DC. A photo-diamine is represented by the formula 1. A liquid crystal photoaligning agent comprises a polyamic acid which is prepared by polymerizing the photo-diamine, an aromatic diamine and an acid dianhydride selected from the group consisting of an alicyclic acid dianhydride and an aromatic acid dianhydride.
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