Multichromal twisting ball displays
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United States of America Patent
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-
Feb 11, 2003
Grant Date -
N/A
app pub date -
Dec 16, 1998
filing date -
Dec 16, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An addressable display device comprising a light transparent body having a plurality of spheroidal balls supported therein. Each ball has an electrical dipole moment and a magnetic dipole moment. An addressing circuit is provided for applying an electric field and a magnetic field across a selected portion of the body to position a given ball. Preferably a given ball is multichromal and includes longitudinal ranges of different colors. A given color within a longitudinal range may include regions of variable saturation as a function of latitude.
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