| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid crystal aligning agent by a rubbing treatment of which an alignment property of liquid crystal molecules is certainly imparted and with which a liquid crystal display element provided with a liquid crystal alignment layer having excellent liquid crystal alignment controllability is obtainable. SOLUTION: The liquid crystal aligning agent consists of a polyimide including an imide repeating unit derived from 4,4'-diamino-2 (or 3), 2' (or 3') diaminobiphenyl and a tetracarboxylic acid dianhydride, and that derived from cyclohexane bis (methylamine) and a tetracarboxylic acid dianhydride, wherein the sum of the imide repeating units is 50 mol % or more of the total repeating units. COPYRIGHT: (C)2006,JPO&NCIPI
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