Manufacturing method of the polyimide resin grain for liquid crystal refinement and manufacturing method of the liquid crystal which was refined, the liquid crystal cell and Liquid Crystal Display

摘要

PURPOSE: To produce a resin particle which can prevent the degradation in voltage retention of a liq. crystal cell. ;CONSTITUTION: This resin particles, used for producing a liq. crystal cell and a liq. crystal display, are obtd. by dissolving 1mol of a tetracarboxylic dianhydride, about 1mol of a diamine, and 0.01-1.5mol of an alcohol in a basic solvent at below 150°C and reacting them at 150-300°C.;COPYRIGHT: (C)1995,JPO