Internal masking layer to prevent parallax in an electro-optical

Details Internal masking layer to prevent parallax in an electro-optical Internal masking layer to prevent parallax in an electro-optical

1983-10-07

1985-11-12

Corbin, John K.

350339F, 350341, G02F 113

Patent

active

045524378

ABSTRACT:
To prevent parallax distortion, and to simplify application of masking patterns, particularly for LCD units, the mask is applied to the front-, or back-plate electrode at the side facing the liquid crystal, and opposite the interrupted, or etched front-plate electrode on the back support plate. Suitable methods are printing, particularly with a coarse or rough grain lacquer varnish or ink, the projections of the coarse grain forming the microspacers between said plates and for retaining the liquid crystal medium; other methods are galvanic deposition on the continuous electrode, and selected exposure of photographic emulsions, particularly color emulsions so that, with multi-color emulsions, multi-color effects can be obtained although only a single thickness of emulsion layer is applied.

REFERENCES:
patent: 3736047 (1973-05-01), Gelber et al.
patent: 3840695 (1974-10-01), Fischer
patent: 4006968 (1977-02-01), Ernstoff et al.
patent: 4097131 (1978-06-01), Nishiyama
patent: 4376934 (1983-03-01), Prohaska et al.

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