Display element, display method and apparatus using said element

Details Display element, display method and apparatus using said element Display element, display method and apparatus using said element

1989-05-23

1991-05-07

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340764, 340788, G09G 334

Patent

active

050140477

ABSTRACT:
A display element comprising a casing having a window, a transparent member for closing the window, at least one flat display member having a face which is colored by three primary colors or other single color, a flat light absorbent shield member sandwiched between the transparent member and the flat display member, containing light absorbent liquid therein and serving to urge the light absorbent liquid toward the outer rim portion thereof when it is pressed, but to return to its original state to shield the face when no pressure is applied to it, and a pressure element capable of pressing the flat light absorbent shield member at each face. '

REFERENCES:
patent: 3698793 (1972-10-01), Tellerman
patent: 3812490 (1974-05-01), Goodrich
patent: 3924228 (1975-12-01), Goodrich
patent: 4694289 (1987-09-01), Kent
patent: 4831372 (1989-05-01), Riddoch

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