ELECTROPHORETIC DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Oct 2, 2014
app pub date -
Mar 29, 2013
filing date -
Mar 29, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention is directed to an electrophoretic display device which is suitable for passive matrix driving. The electrophoretic fluid may comprise two types of charged pigment particles wherein the two types of charged pigment particles carry opposite charge polarities, have contrasting colors and have different levels of charge intensity. Alternatively, there may be a third type of particles added to the fluid.
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