Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-02-07
2006-02-07
Tran, Henry N. (Department: 2674)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S204000, C313S463000, C315S169100, C315S169300
Reexamination Certificate
active
06995737
ABSTRACT:
A method and system for controlling a voltage used for precharging current-driven elements in a matrix, and a method of manufacturing a device to perform this function. Elements are driven during successive scan cycles, each having a precharge period and an exposure period. The elements conduct current during conduction periods, which typically have variable length within exposure periods. Conduction voltages are sensed at earlier times (e.g., near the beginning) and later times (e.g., near the end) within conduction periods. A precharge voltage is adapted based on a comparison of the earlier and later sensed conduction voltages, typically so as to reduce any average difference and thereby cause the voltage during exposure to be consistent.
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Clare Micronix Integrated Systems, Inc.
Knobbe Martens Olson & Bear LLP
Tran Henry N.
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