Method for controlling electro-optic display
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United States of America Patent
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Apr 25, 2006
Grant Date -
Feb 24, 2005
app pub date -
Aug 19, 2004
filing date -
Aug 19, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
An electro-optic display comprises a bistable electro-optic medium, a plurality of pixel electrodes, with associated non-linear elements, and a common electrode, disposed on opposed sides of the electro-optic medium. The display has a writing mode, in which at least two different voltages are applied to different pixel electrodes, and a non-writing mode in which the voltages applied to the pixel electrodes are controlled so that any image previously written on the electro-optic medium is substantially maintained. The display is arranged to apply to the common electrode a first voltage when the display is in its writing mode and a second voltage, different from the first voltage, when the display is in its non-writing mode.
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