Patent ID: 6887534

Claim:
A liquid crystal aligning agent comprising a polymer having a structure represented by the following formula (I): wherein S 1 is a divalent organic group, T 1 is a tetravalent organic group, and Z 1 and Z 2 are each independently a hydroxyl group or monovalent organic group, wherein at least one of Z 1 and Z 2 is at least one group selected from the group consisting of a monovalent organic group represented by formula (II): â€”R 2 â€”P 2 â€”CHâ•CHâ€”COâ€”Q 2 (II) wherein Q 2 is a monovalent organic group having an aromatic ring, P 2 is a divalent organic group having an aromatic ring, and R 2 is a divalent bonding group, and a monovalent organic group represented by formula (III): â€”R 3 â€”P 3 â€”COâ€”CHâ•CHâ€”Q 3 (III) wherein Q 3 is a monovalent organic group having an aromatic ring, P 3 is a divalent organic group having an aromatic ring, and R 3 is a divalent bonding group.