Electrostatic display device

Details Electrostatic display device Electrostatic display device

1978-03-28

1979-07-10

James, Andrew J.

350359, G02F 100

Patent

active

041605837

ABSTRACT:
An electrostatic display device includes a casing with a pair of side walls, a fixed electrode having a cylindrical surface and a ridge at the upper most portion of the surface, a pair of flaps of resilient sheet electrode standing adjacent to the fixed electrode along the inner surface of the side walls, and a layer of insulating material provided on the outer surface of the fixed electrode and/or the inner surface of the resilient sheet electrode, whereby upon applying a voltage to the electrodes, the resilient flaps are attracted to the cylindrical surface of the fixed electrode and cover the same in a moment, changing the appearance of the device.

REFERENCES:
patent: 3553364 (1971-01-01), Lee
patent: 3897997 (1975-08-01), Kalt
patent: 3989357 (1976-11-01), Kalt
patent: 4094590 (1978-06-01), Kalt

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