Electro optic display device with porous sub-layer and method

Details Electro optic display device with porous sub-layer and method Electro optic display device with porous sub-layer and method

1996-06-11

1997-11-18

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349113, G02F 11335, G02F 113

Patent

active

056893191

ABSTRACT:
In an LCD internal reflections are reduced by giving the inner side of a metal pattern functioning, for example as a light shield (black matrix) a porous structure. The porous structure is obtained by means of a sputtering process in which the sputtering pressure is increased for providing the porous sub-layer, while the layer is etched and/or oxidized to obtain a satisfactory density.

REFERENCES:
patent: 4158484 (1979-06-01), Nishiyama
patent: 5112449 (1992-05-01), Jozefowicz et al.
patent: 5132200 (1992-07-01), Fukuda et al.
patent: 5311338 (1994-05-01), Kim et al.

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