Electrostatically controlled picture display device

Details Electrostatically controlled picture display device Electrostatically controlled picture display device

1981-05-04

1984-01-17

Evans, F. L.

Communications: electrical

Land vehicle alarms or indicators

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

350486, 340763, 340783, G02D 2500

Patent

active

RE0314986

ABSTRACT:
A passive picture display device having a number of display elements for controlling the reflection or the transmission of light. Each display element has two parallel supporting plates of which at least one is transparent, a first electrode disposed on one of said supporting plates, a second electrode disposed on the other supporting plate facing the first electrode, a third electrode movably disposed between the first and second electrodes by electrostatic forces and an opaque liquid the color of which contrasts with the color of the side of the third electrode facing the transparent supporting plate filling the space between the two supporting plates.

REFERENCES:
patent: 3553364 (1971-01-01), Lee
patent: 3924228 (1975-12-01), Goodrich
patent: 4062009 (1977-12-01), Raverdy et al.
patent: 4065677 (1977-12-01), Micheron et al.

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