| abstract |
The invention provides a liquid crystal aligning agent, a liquid crystal aligning film and a preparation method thereof, a liquid crystal display element, a retardation film and a preparation method thereof, a polymer and a compound. The liquid crystal aligning agent of this invention contains the polymer (P) which has a partial structure represented by following formula (1) on a main chain. In formula (1), W 1 and W 2 are divalent cyclic groups having a benzene ring, a cyclohexane ring, etc. in the ring skeleton; X 1 is a single bond, -O-, -COO-, -CO-, etc.; X 2 is -O-, -COO-, -CO-, etc.; R 1 is a single bond, an alkanediyl group with 1 to 20 carbons, etc.; R 2 is a single bond, -COO-, an alkane with 1 to 5 carbons Diradical, etc.; p is an integer of 0 to 2; when p=0, the ring skeleton of W 1 is not a benzene ring; when both W 1 and W 2 are substituted or unsubstituted phenylene, R 1 is not a single bond. The liquid crystal aligning agent of this invention can make the applicability to a board|substrate, the rubbing resistance of a coating film, and the afterimage characteristic of a liquid crystal display element all favorable. |