Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1995-02-03
1997-07-15
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349136, G02F 11337, G02F 1141
Patent
active
056488297
ABSTRACT:
A liquid crystal display device and a method for fabricating the same are provided. In fabricating a liquid crystal display device, the method enables liquid crystal alignment operation to be easily and accurately carried out in such a way that liquid crystal alignment is changed between adjacent minute regions. An alignment film is formed on a glass substrate formed with transparent electrodes, and then rubbing operation is performed using a rubbing cloth in one direction with respect to the alignment film, so that the alignment film is caused to maintain a high pretilt condition. After a mask substrate is so positioned as to register with the glass substrate, ultraviolet light irradiation is effected to form a high-pretilt keeping region and a low-pretilt keeping region on the surface of the alignment film. In the display device, it is arranged that one high-pretilt keeping region is disposed opposite one low-pretilt keeping region. Use of ultraviolet light in forming the high-pretilt keeping and low-pretilt keeping regions provides for good simplicity in the fabricating process involved.
REFERENCES:
patent: 4328493 (1982-05-01), Shanks et al.
patent: 5446569 (1995-08-01), Iwai et al.
patent: 5464669 (1995-11-01), Kang et al.
patent: 5473455 (1995-12-01), Koike et al.
patent: 5478682 (1995-12-01), Nishikawa et al.
Kyocera Corporation
Miller Charles
Sikes William L.
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