Uv-ray-dimerized high molecular compound, liquid crystal aligning film using above high molecular compound and liquid crystal display element using above aligning film

摘要

Disclosed is an aligning film having good liquid crystal orientation, which can be obtained by irradiating polyimide comprising N- (2-(3,5- diaminobenzoyl)oxyethyl)-&agr;-phenylmaleimide and 1,2,3,4- cyclobutanetetracarboxylic dihydride with polarized UV-rays without employing such methods as rubbing treatment and oblique deposition.