Patent ID: 7666325

Claim:
A liquid crystal orientation layer comprising: at least one polymer selected from polyamic acids and polyimides; and at least one epoxy compound having a chemical structure represented by the formula (1) or (2): wherein, A represents a divalent aliphatic group, B represents a triavalent aliphatic group, each of X1, X2 and X3 is an alicyclic epoxy group or a glycidyl group represented by the following formula (a) or (b): wherein each of R1 to R10, which may be the same or different, represents a hydrogen atom, a halogen atom, a hydrocarbon group having from 1 to 5 carbon atoms, which may contain an oxygen atom or a halogen atom, or an optionally substituted alkoxy group having from 1 to 5 carbon atoms, and wherein each of R1 to R12, which may be the same or different, represents a hydrogen atom, a halogen atom, a hydrocarbon group having from 1 to 5 carbon atoms, which may contain an oxygen atom or a halogen atom, or an optionally substituted alkoxy group having from 1 to 5 carbon atoms.