| abstract |
Provided is a method for manufacturing a liquid crystal alignment film capable of enhancing anisotropy and suppressing unevenness caused by processing. A film obtained by coating and firing a liquid crystal aligning agent containing at least one kind of polymer selected from the group consisting of polyimide and a precursor of the polyimide on a substrate is irradiated with polarized radiation, (A-2), (A-3), (A-4) and . (Formula 1) (A 1 is a hydrogen atom or an acetyl group, A 2 is an alkyl group having 1 ~ 6, R 2 is a hydrogen atom or a methyl group, n is 1 or 2. A 3 is an alkyl group having 1 ~ 4. R 3, R 4 is hydrogen atom or a methyl group. a 5, a 6 is an alkyl group having 1 ~ 4. a 6 is an alkyl group or a cycloalkyl group having 3 to 6 carbon atoms.) |