The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 1998
Filed:
Oct. 28, 1996
Satoshi Tanioka, Ichiharashi, JP;
Shizuo Murata, Ichiharashi, JP;
Makoto Kono, Chinoshi, JP;
Masayuki Hirano, Hamamatsushi, JP;
Chisso Corporation, Osaka, JP;
Iinuma Gauge Mfg. Co., Ltd., Naganoken, JP;
Hamamatsu Photonics K.K., Shizuokaken, JP;
Abstract
A method for treating an aligning film for a liquid crystal display element and a method for preparing a liquid crystal display element are proposed. The said treating method comprises rubbing a specified aligning film formed on a transparent substrate with a transparent electrode and thereafter radiating soft X-ray for 2 seconds or more in gas. The said preparing method comprises arranging a transparent electrode on a pair of transparent substrates, forming an aligning film consisting of an organic high molecular compound on the said transparent electrode, treating the said aligning film by a rubbing treatment, assembling the substrates face to face each other via a spacer, and then sealing a liquid crystal material. By a method for treating an aligning film according to the invention, it is possible to lower display unevenness of a liquid crystal display element and to improve an yield of product.