LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM MANUFACTURED USING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE LIQUID CRYSTAL ALIGNMENT FILM

摘要

PURPOSE: A liquid crystal alignment agent is provided to have excellent orientation safety and excellent texture, by having a liquid crystal-friendly structure. CONSTITUTION: A liquid crystal alignment agent includes a polymer selected from polyamic acids including a structure unit represented by chemical formula 1, polyimide including a structure unit represented by chemical formula 2, and combinations thereof. In chemical formula 1 and 2, each of X^1 and X^2 is the same as or different from each other, and is independently quadrivalent organic group derived from acid dianhydrides; each of Y^1 and Y^2 is the same as or different from each other, and is independently a divalent organic group derived from diamine.