LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM, FORMING METHOD FOR THE LIQUID CRYSTAL ALIGNMENT FILM, LIQUID CRYSTAL DISPLAY DEVICE, AND POLYMER

摘要

PURPOSE: A liquid crystal alignment agent is provided to form a liquid crystal alignment film with excellent liquid crystal aligning performance by having high radiosensitivity. CONSTITUTION: A liquid crystal alignment agent contain a polymer having a structure unit including a group represented by chemical formula 1 or chemical formula 2. In chemical formula 1, each of R^1 and R^2 is hydrogen or a monovalent organic group, X is oxygen or sulfur. In chemical formula 2, each of R^3 and R^4 is hydrogen or a monovalent organic group. A forming method of a liquid crystal alignment film comprises a process of forming a coating on a substrate using the liquid crystal alignment agent; and a step of irradiating the coating with a polarized ultraviolet ray, to obtain liquid crystal alignment.