LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT

摘要

Provided is a liquid crystal aligning agent which has high wettability and spreadability over substrates and is capable of providing a liquid crystal alignment film that has excellent coating film uniformity and excellent coating film properties in the end portions, said liquid crystal alignment film enabling the achievement of pretilt angles that do not change even if left at high temperatures or irradiated with light for a long period of time. A liquid crystal aligning agent which contains N-ethyl-2-pyrrolidone and at least one polymer that is selected from the group consisting of polyimide precursors having a side chain represented by formula [1] and polyimides. (In the formula, each of X1, X2 and X3 independently represents a single bond or the like; each of X4 and X5 independently represents a benzene ring or the like; X6 represents an alkyl group having 1-18 carbon atoms, or the like; and n represents an integer of 0-4.)