Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2004-06-23
2010-06-15
Nguyen, Chanh (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S068000
Reexamination Certificate
active
07737921
ABSTRACT:
Disclosed are a driving device and a driving method for a plasma display panel (PDP). A panel capacitor is formed by a scan electrode and a sustain electrode. The charges are moved from the panel capacitor to a capacitor by turning on a transistor which is connected between the scan electrode and the capacitor. By this method, the voltage of the panel capacitor is steeply reduced so that a discharge is generated in the panel capacitor. When the voltage of the capacitor increases because of the charges moved from the panel capacitor, the gate-source voltage of the transistor is reduced. As a result, the transistor is turned off so that the scan electrode is floated. Accordingly, the discharge is steeply quenched so that the wall charges are precisely controlled. After the capacitor is discharged, the above-noted operation may be repeated.
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European Search Report dated Feb. 4, 2008.
Chae Seung-Hun
Chung Woo-Joon
Kang Kyoung-Ho
Kim Jin-Sung
Kim Tae-Seong
H.C. Park & Associates PLC
Karimi Pegeman
Nguyen Chanh
Samsung SDI & Co., Ltd.
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