Passive display device
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United States of America Patent
Stats
-
May 28, 1985
Grant Date -
N/A
app pub date -
Jan 24, 1983
filing date -
Feb 1, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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