Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1996-02-06
1998-04-14
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349110, 349162, 349155, 349187, 349138, G02F 11339
Patent
active
057398909
ABSTRACT:
This invention relates to a reflection liquid crystal display device using a reflection liquid crystal light bulb and a method for fabricating such liquid crystal display devices, and an object thereof is to provide a liquid crystal display device and its manufacture wherein the numerical aperture of the subpixel is increased to improve the display brightness. The present method comprises the steps of forming an optical absorbing layer 26 on a semiconductor substrate 1; forming a plurality of light reflecting films 32 on the optical absorbing layer 26 via an insulating film 28; forming an insulating film 36 all over the surface; coating positive photoresist all over the insulating film 36 to form a resist layer 64; exposing and developing the resist layer 64 from above to form a mask in such a way that the resist layer 64 remains only on the regions between the plurality of light reflecting films 32 in a self-aligned manner; and using the mask to etch the insulating film 36 to form pillar-shape spacers 34 on the regions between the plurality of light reflecting films 32.
REFERENCES:
patent: 4678542 (1987-07-01), Boer et al.
patent: 4999619 (1991-03-01), Te Velde
Nishida Mamoru
Shinohara Masami
Uda Mitsuru
Drumheller Ronald L.
Duong Tai V.
International Business Machines - Corporation
Sikes William L.
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