On the production mannered of the liquid crystal orientation film, and mannered null substrate which reduces the tilt angle

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a liquid crystal orientated film hardly producing tilt angles of the liquid crystals by using non-polarized light, and to provide a method of reducing the tilt angles.;SOLUTION: This method of manufacturing a liquid crystal orientated film forms an optical orientation layer on a substrate, and irradiates it from aslant direction with light. The above light is a non-polarized light, consisting of light (a) and light (b) different from each other in the direction. (1) The light (a) and light (b) partly cross the orientation film. (2) The light (a) and light (b) form substantially a 0° or 180° angle with each other. (3) The light (a) and light (b) make substantially the same angle to the orientation film. (4) When the light intensities of the light (a) and light (b) on the oriented film are represented by Ia, Ib, the light (a) and light (b) having substantially equal Ia, Ib are radiated to the orientation film at the same time, to make light orientation where they meet. This invention also provides a method for reducing the tilt angles, a liquid crystal display elements using the liquid crystal orientation film obtained by the manufacturing method, and an optically anisotropic object.;COPYRIGHT: (C)2007,JPO&INPIT