Liquid crystal display device with enhanged contrast

Details Liquid crystal display device with enhanged contrast Liquid crystal display device with enhanged contrast

1974-09-13

1976-11-16

Bauer, Edward S.

G02F 113

Patent

active

039920810

ABSTRACT:
The contrast and thereby the visibility of indicia on a liquid crystal display device are enhanced by placing a film on said device in a position to reflect scattered light and by the use of a suitably placed shield to prevent specular reflection of incident light to the eye of the observer.

REFERENCES:
patent: 3499112 (1970-03-01), Heilmeier et al.
patent: 3653138 (1972-04-01), Cooper
patent: 3701249 (1972-10-01), Bergey et al.
patent: 3712047 (1973-01-01), Girard
patent: 3748018 (1973-07-01), Borden
patent: 3768887 (1973-10-01), Portmann
patent: 3811751 (1974-05-01), Myer
patent: 3881807 (1975-05-01), Hosokawa et al.

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