Method of making an electro-optic display device with porous sub

Details Method of making an electro-optic display device with porous sub Method of making an electro-optic display device with porous sub

1993-09-02

1997-01-07

Gross, Anita Pellman

Liquid crystal cells, elements and systems

Nominal manufacturing methods or post manufacturing...

349110, 349113, G02F 11333, G02F 11335, G02F 113

Patent

active

055923160

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: 5311338 (1994-05-01), Kim et al.

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