Passive display device having movable electrodes and method of manufacturing
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United States of America Patent
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Mar 8, 1988
Grant Date -
N/A
app pub date -
Jun 24, 1985
filing date -
Jul 12, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A psssive display device comprises a first supporting plate (10) and a second supporting plate (11) at least one of which is transparent. The device comprises display elements each having at least one fixed electrode (12, 13) and an electrode 16 which is arranged so as to be movable with respect to the said electrode (12, 13) and has apertures. The movable electrode 16 can be moved by electrostatic forces between two final positions determined by engaging surfaces (14, 15). In each of the final positions the movable electrode 16 engages an engaging surface (14, 15) whose surface structure is not congruent with that of the surface of the electrode so that a finite number of discrete engaging points is formed between the movable electrode and its engaging surfaces. Furthermore methods are described for manufacturing such a display device.
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