Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-07-06
2009-11-10
Lewis, David L (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C315S169400
Reexamination Certificate
active
07616175
ABSTRACT:
A plasma display device including first and second electrodes and a driving circuit alternately applying first and second voltages to the first and second electrodes. The driving circuit includes a power recovery unit, a sustain discharge voltage supply, and a gate voltage supply. The power recovery unit includes an inductor coupled between the first electrode and a capacitor, and increases/decreases the voltage of the first electrode by electrically coupling the inductor and the capacitor. The sustain discharge voltage supply includes a first transistor and a second transistor that couple the first electrode to a supply voltage and to ground. In case of damage to a circuit element, a current is established, through a Zener diode, coupled between the capacitor and the gate voltage supply, that disconnects the supply of voltage to gate drivers of the circuit transistors and stops the operation of the driving circuit.
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Christie Parker & Hale LLP
Lewis David L
Samsung SDI & Co., Ltd.
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