Production of liquid crystal cell
专利汇可以提供Production of liquid crystal cell专利检索，专利查询，专利分析的服务。并且PURPOSE:To form orientation controlling films with good productivity by covering the parts of a substrate where orientation control films are not formed with a mask, and rubbing the same with a rubbing material stuck with specific varnish then causing dehydration and ring closure thereby providing imide bonds. CONSTITUTION:A glass substrate 12 disposed with transparent electrodes is mounted on a moving stand 10, and a mask 9 consisting of a metallic member is placed on the top surface thereof to cover the parts which are undesired to be coated with orientation controlling films. Next, a rubbing material 8a coated with varnish prepd. by dissolving a polyamic acid or the like in a solvent on a fabric, brush or the like is mounted to a rotator 8, and while this rotator 8 is lowered and rotated, the stand 10 is moved in an arrow direction to stick the varnish the surface of the substrate 12 corresponding to the opening parts 11 of the mask 9 and to rub the surface in one direction, after which the substrate 12 is heated to about 300 deg.C, to cause dehydration and ring closure of the varnish, whereby imide bonds are provided and the orientation controlling film is formed.，下面是Production of liquid crystal cell专利的具体信息内容。
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