| abstract |
A liquid crystal aligning agent for obtaining a liquid crystal alignment film excellent in adhesion to a sealant and liquid crystal alignment property. A liquid crystal aligning agent containing at least one polymer selected from the group consisting of a polyimide precursor having a structural unit represented by the formula (1) and a structural unit represented by the formula (3), and an imidization polymer of the polyimide precursor. However, X 1, X 2 is a tetravalent organic group, Y 1 is heat bivalent having desorbed group organic group, Y 2 is a divalent organic group, R 1, R 2 is a hydrogen atom, or an alkyl group having 1 to 5 carbon atoms , Z 1 and Z 2 each represent a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or an alkynyl group having 2 to 10 carbon atoms, which may have a substituent. |