液晶配向剂、液晶配向膜、液晶显示元件、相位差膜及其制造方法、聚合物以及化合物;LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, LIQUID CRYSTAL DISPLAY DEVICE, PHASE DIFFERENCE FILM AND MANUFACTURING METHOD THEREOF, POLYMER AND COMPOUND

摘要

本发明提供一种液晶配向剂，其用以形成可适当表现出对液晶显示元件所要求的各种特性的液晶配向膜。所述液晶配向剂中含有选自由聚醯胺酸、聚醯胺酸酯及聚醯亚胺所组成的组群中的至少一种聚合物(P)，所述聚合物(P)是使四羧酸衍生物、与包含下述式(1)所表示的化合物的二胺进行反应而获得。;(R A 是在烃基的碳-碳键间以及与所述烃基相邻的位置的至少任一位置具有氧原子或者硫原子的2价基团，X 1 及X 2 分别独立地为单键、氧原子、硫原子或者2价有机基。) The present invention provides a liquid crystal alignment agent, which is used for forming a liquid crystal alignment film which is suitably shows various properties required for a liquid crystal display device. The liquid crystal alignment agent includes at least one polymer (P) selected from a group consisiting of polyamic acid, polyamic acid ester and polyimide obtained by reacting a tetracarboxylic dianhydride with a diamine including a compound represented by following formula (1). ;(R A is a divalent group having an oxygen atom or a sulfur atom at least one of any position of between carbon-carbon bond in a hydrocarbon group and a position adjacent to the hydrocarbon group; X 1 and X 2 are each independently a single bond, an oxygen atom, a sulfur atom, or a divalent organic group.)