Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2011-01-18
2011-01-18
Lefkowitz, Sumati (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
Reexamination Certificate
active
07872633
ABSTRACT:
An electrophoretic display having charged particles that are able to occupy, between a first and second electrode, two limit positions and intermediate positions between the two limit positions which are defined by a drive voltage. An addressing circuit generates the drive voltage waveform by successively applying between the first electrode and the second electrode, during an image update period, a reset pulse enabling particles of the display to substantially occupy one of the limit positions, and a drive pulse having a level in accordance with an optical state to be reached by one of the pixels. The addressing circuit generates a first shaking pulse having at least one preset pulse having energy sufficient to release particles present in one of the limit positions, but insufficient to enable the particles to reach the other one of the extreme limit positions.
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Johnson Mark Thomas
Zhou Guofu
Adrea, LLC
Carter III Robert E
Finnegan Henderson Farabow Garrett & Dunner LLP
Lefkowitz Sumati
LandOfFree
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