| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid crystal alignment agent achieving a liquid crystal orientation membrane excellent in all of liquid crystal alignment property, transparency and rubbing resistance.SOLUTION: The liquid crystal alignment agent contains at least one kind of polymer selected from the group consisting of polyamic acid having a divalent group represented by the following formula (1) and an imidized polymer of the polyamic acid. In the formula (1), n1 represents an integer of 1 to 3, a plurality of Xs each independently represent an oxygen atom or a sulfur atom, a plurality of Ys each represent -NH- or an oxygen atom, two Reach independently represent single bond, methylene group or C2-6 alkylene group, Reach independently represent a divalent organic group when the Rare plural, and "*" each represent a bond. |
