Patent ID: 7507450

Claim:
A varnish for forming a liquid crystal alignment layer comprising: a polymer obtained by reacting a silsesquioxane derivative represented by the formula (1-4) with a diamine; and a solvent, where in the formula (1-4), R independently an unsubstituted phenyl, cyclopentyl, cyclohexyl, or t-butyl, and Y 4 independently represent a group represented by the formula (a-4) or (b-1), R 4 represents a divalent organic group having 1 to 20 carbon atoms, X 14 represents an alkyl having 1 to 4 carbons atoms or unsubstituted phenyl, R 5 represents a single bond or a divalent organic group having 1 to 20 carbons atoms, and X 14 represents an alkyl having 1 to 4 carbons atoms or an unsubstituted phenyl, wherein at least one kind of the diamine is a silsesquioxane derivative represents by the formula (9-1), where in the formula (9-1), R 6 independently represents an alkyl having 1 to 20 carbon atoms, alkenyl having 2 to 20 carbon atoms, or aryl having 6 to 20 carbon atoms, whereby optional —CH 2 — may be replaced by —O—, and optional hydrogen may be replaced by halogen, R 7 represents a single bond or a divalent organic group having 1 to 15 carbon atoms, and R 8 represents a trivalent organic group having 1 to 15 carbon atoms.