Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1996-10-28
1998-08-25
Thomas, Alexander
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
428 1, 427595, G02F 11337
Patent
active
057988102
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.
REFERENCES:
patent: 5009489 (1991-04-01), Eguchi et al.
patent: 5256456 (1993-10-01), Ogawa
patent: 5262882 (1993-11-01), Hikmet
patent: 5625475 (1997-04-01), Tanioka et al.
Hirano Masayuki
Kono Makoto
Murata Shizuo
Tanioka Satoshi
Chisso Corporation
Hamamatsu Photonics K.K.
Iinuma Gauge Mfg. Co., Ltd.
Thomas Alexander
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