| abstract |
PROBLEM TO BE SOLVED: There has been a demand for an alignment film in which the film is difficult to be removed by rubbing treatment. There has been a demand for a composition for an alignment film and an alignment film capable of uniformly expressing alignment characteristics by rubbing treatment. In addition, an alignment film and a liquid crystal display element that can be manufactured with a high yield have been demanded. A polyester-polyamic acid (A1) obtained by using at least a polyvalent hydroxy compound (a1), a diamine (a2), and a compound (a3) having two or more acid anhydride groups, and an imidized product thereof. The composition for liquid crystal aligning films containing 1 or more chosen from the group which consists of a certain polyester-polyimide (A2). [Selection figure] None |