Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2004-09-09
2009-08-18
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S076000, C345S077000, C345S080000, C345S081000, C345S082000, C345S204000
Reexamination Certificate
active
07576718
ABSTRACT:
To provide a technology for preventing effect of precharging from becoming nonuniform when the threshold voltage of a driving transistor included in a current drive type pixel circuit is nonuniform. In the technology, before setting the internal state of each of current drive type pixel circuits, provided to corresponded to intersections of a plurality of data lines and a plurality of scanning lines, in accordance with light emission grayscales, precharge voltages as voltages to be applied to the data lines are specified. A predetermined current is supplied to the current drive type pixel circuits via the data lines. A precharge voltage is specified in accordance with voltages appearing in the data lines after the predetermined current is supplied.
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Hjerpe Richard
Oliff & Berridg,e PLC
Seiko Epson Corporation
Shapiro Leonid
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