Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2004-11-17
2009-11-17
Ngo, Ricky (Department: 2416)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S100000, C345S103000, C370S535000
Reexamination Certificate
active
07619602
ABSTRACT:
Disclosed is a display device using a demultiplexer. The demultiplexer sequentially samples data currents that are time-divided and applied by a data driver, and holds them to a plurality of data lines. Since the demultiplexer is to sample the data currents corresponding to N data lines during a horizontal period when performing 1:N demultiplexing, the data current corresponding to one data line is to be sampled during a 1/N horizontal period. According to one embodiment, a signal line coupled between the demultiplexer and the data driver is precharged with particular voltage before sampling the data current. The precharge voltage is sufficient to allow current transmitted to the signal line to be substantially sampled within a a given sampling time after the precharge voltage is applied.
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Christie Parker & Hale LLP
Ngo Ricky
Nguyen Phuongchau B
Samsung Mobile Display Co., Ltd.
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