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

摘要

Provided are: a liquid-crystal alignment agent that is easy to handle, has excellent coatability, and is capable of forming a liquid-crystal alignment film having photo-alignment properties for vertical alignment; a liquid-crystal alignment film; and a liquid-crystal display element. A liquid-crystal alignment agent characterized in containing at least one polymer selected from the groups consisting of a polyimide precursor having a beta-hydroxyester structure, and a polyimide having a beta-hydroxyester structure.