| 摘要 |
PURPOSE:To obtain a liquid crystal display device suitable for mass production by rubbing an oriented film within a specific range of rubbing density thereby obtaining the orientation having no flaws, i.e., line holds, of the oriented film and facilitating setting of conditions. CONSTITUTION:The rubbing density (pirXA-v)/v when the number of revolutions of a rotating body is designated as Arpm, the diameter of the body as rcm and the moving speed of a beam material 3 and a supporting base 4 as vcm/min is set at 15-1,000. A polyimide resin soln. is coated by a spinner, etc., on the substrate 3, on which transparent electrodes of a prescribed pattern are formed by tin oxide or indium oxide, etc. The coating is then calcined after drying to form the oriented film t consisting of polyimide on the substrate. The substrate 3 is thereafter subjected to the rubbing treatment, in which polyes ter of flocking type is used as a rubbing cloth 2. The upper and lower substrates 3, 3 subjected to the rubbing treatment are combined and adhered by a sheeting agent, etc., at a specified spacing, following which a liquid crystal is sealed therebetween to constitute the liquid crystal display device. The uniform display having no defective orientations such as line holds is thereby attained and the liquid crystal display device having a high display grade is obtd. |
