Display device using electro-optic plate and a membrane switch
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United States of America Patent
Stats
-
Mar 29, 1988
Grant Date -
N/A
app pub date -
Dec 4, 1986
filing date -
Dec 6, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A display apparatus using a light-transmitting ceramic plate having an electrooptic effect known as Kerr effect is disclosed. The ceramic plate is placed between two parallel polarizers having a same axis of polarization. A transparent flexible sheet faces a surface of the ceramic plate. The flexible sheet has a plurality of transparent striped electrodes on a surface facing the surface of the ceramic plate. The striped electrodes are locally brought into contact with the surface of the ceramic plate by a pressure applied by a pressure application head which is either always or intermittently pressed onto the flexible sheet. The pressure application head is movable in a direction parallel to the striped electrodes for scanning.
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