POLYMER, ITS MANUFACTURING METHOD, LIQUID CRYSTAL ORIENTATING AGENT AND LIQUID CRYSTAL ORIENTATED FILM

摘要

PROBLEM TO BE SOLVED: To provide a liquid crystal orientating agent imparting parallel orientating capability to a liquid crystalline molecule by irradiating polarization pulsed laser and having performance to impart a thermally stable pretilting angle thereto, and to provide a polymer for the orientating agent and a manufacturing method of the polymer.;SOLUTION: Polyamic acid or polyimide is obtained by reacting a tetracarboxylic acid with at least two kinds of diamine compounds. The liquid crystal orientating agent comprises the polyamic acid or the polyimide, and a liquid crystal orientated film is manufactured by irradiating the polarization pulsed laser to the surface of a coating obtained from the orientating agent.;COPYRIGHT: (C)2002,JPO