Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-06-12
2007-06-12
Vu, David (Department: 2821)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S060000, C345S062000, C315S169300
Reexamination Certificate
active
10780579
ABSTRACT:
In a plasma display device having a reduced discharge-current-induced voltage fluctuation and an expanded drive margin and being successful in preventing the display characteristics from being degraded, a Y-electrode drive circuit and an X-electrode drive circuit for supplying a drive voltage to the capacitance which represents a display cell are configured using parallel circuits in which first switching elements having a high-speed-switching performance and second switching elements having a low-saturation-voltage performance are connected in parallel, so that the second switching elements having the low-saturation-voltage performance are turned on at least during a period that discharge current flows therebetween.
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European Search Report, dated Feb. 16, 2007, and issued in corresponding European Patent Application No. 04251133.7-2205.
Kamada Masaki
Ohki Hideaki
Onozawa Makoto
Shiizaki Takashi
Duong Dieu Hien
Fujitsu Hitachi Plasma Display Limited
Staas & Halsey , LLP
Vu David
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