Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-02-27
2010-06-08
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S063000, C345S055000, C345S204000
Reexamination Certificate
active
07733302
ABSTRACT:
In conventional plasma display devices, reset by obtuse waves has been performed since discharge intensity becomes higher and background light emission is increased when reset by rectangular waves is performed. However, further improvement of the contrast to improve the image quality has been demanded. The present invention provides a driving method of a plasma display device using obtuse-wave reset in which sustain time of an achieved potential of the obtuse-wave reset is controlled in accordance with a display ratio of a video signal.
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Furukawa Isao
Kishi Tomokatsu
Onozawa Makoto
Sasaki Takashi
Antonelli, Terry Stout & Kraus, LLP.
Fujitsu Hitachi Plasma Display Limited
Hjerpe Richard
Shapiro Leonid
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