Patent ID: 7914863

Claim:
A liquid crystal alignment solution, comprising: a first polyimide-polyamide acid represented by formula (A), a second polyimide-polyamide acid represented by formula (B), wherein a weight ratio of the first polyimide-polyamide acid to the second polyimide-polyamide acid is between 5:95 and 95:5; T 1 , T 2 , T 3 and T 4 are each independently a tetravalent residue of a tetracarboxylic acid dianhydride; m, n, p and q are each independently an positive integer, wherein m/(m+n)≦0.5 and p/(p+q)≧0.5; D 1 , D 2 , D 3 , and D 4 are each independently a divalent residue of a diamine; and at least one of D 3 and D 4 is selected from the group consisting of formulae (2) to (4), wherein R 1 is a monovalent C 4-40 alicyclic group or a monovalent C 8-20 aliphatic group; R 2 is a halogen atom or a monovalent group; X is —O—; and Y is a divalent group selected from the group consisting of —O—, —NH—, —S—, —CO—, —COO—, —OCO—, —NHCO— and —CONH—.