Passive display device

Details Passive display device Passive display device

1983-01-24

1985-05-28

Arnold, Bruce Y.

Communications: electrical

Land vehicle alarms or indicators

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

350486, 340763, 340783, G02D 2500

Patent

active

045196761

ABSTRACT:
On the facing surfaces of first and second supporting plates, where at least the first supporting plate is transparent, first and second electrodes, respectively, are provided with at least the first electrodes being transparent. An opaque liquid is present between the supporting plates. Third electrodes which can be moved between the first and second electrodes by electrostatic forces are connected to the second supporting plate. The third electrodes are formed by a display part having a large number of apertures of which the color of the side facing the first supporting plates is contrasted with the color of the liquid. A number of resilient elements is provided below the display part with one end connected to the display part and the other ends connected to pillars which are provided on the second supporting plate.

REFERENCES:
patent: Re31498 (1984-01-01), te Velde
patent: 4178077 (1979-12-01), te Velde
patent: 4309242 (1982-01-01), te Velde

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