Electrophoretic display device and method for driving the same

Optical: systems and elements – Optical modulator – Light wave temporal modulation

Reexamination Certificate

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C345S107000, C430S032000, C204S600000

Reexamination Certificate

active

06873451

ABSTRACT:
An electrophoretic display device includes a pair of substrates arranged with a predetermined gap maintained therebetween, a dispersing fluid disposed between the pair of substrates, a plurality of charged particles mixed in the dispersing fluid, at least a pair of display electrodes arranged on one of the substrates and defining a pixel, and a guard electrode arranged in a border between adjacent pixels. The guard electrode limits the movement of the charged particles to within a single pixel when the guard electrode is biased at a potential higher than (lower than) each of the display electrodes of the two adjacent pixels with the border arranged therebetween if the particles are positively (negatively) charged.

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patent: 5345251 (1994-09-01), DiSanto et al.
patent: 6611100 (2003-08-01), Moore
patent: 6639580 (2003-10-01), Kishi et al.
patent: 1-248183 (1989-10-01), None

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