Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1998-03-06
2000-11-07
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 60, 345 61, 345 62, 345 66, 345 68, 345103, G09G 328
Patent
active
061443492
ABSTRACT:
The present invention relates to a plasma display device which limits a generation of electromagnetic wave. The plasma display device has first and second drive circuits for applying a drive voltage to first and second display electrode pair. Further, a direction of a charge current flowing at said first display electrode pair when said drive voltage is applied by said first drive circuit is opposite on said plasma display panel to a direction of a charge current flowing at said second display electrode pair when said drive voltage is applied by said second drive circuit. According to the present invention, a transitional charge/discharge current, which is generated upon the application of a drive voltage to one of the display electrodes, and a light emission discharge current flow in opposite directions on the panel. Thus, electromagnetic waves that are generated by the inductances of the display electrode pair cancel each other out. In addition, the currents flowing in opposing directions cancel each other out on the common ground wirings which are connected to the ground wirings of the drive circuits, and electromagnetic wave is reduced.
REFERENCES:
patent: 4180762 (1979-12-01), Weber
patent: 4320418 (1982-03-01), Pavliscak
patent: 5030888 (1991-07-01), Salavin et al.
patent: 5331252 (1994-07-01), Kim
patent: 5369338 (1994-11-01), Kim
patent: 5790087 (1998-08-01), Shigeta et al.
patent: 5854540 (1998-12-01), Matsumoto et al.
patent: 5877734 (1999-03-01), Amemiya
patent: 6037916 (2000-03-01), Amemiya
Asami Fumitaka
Awamoto Kenji
Awata Yoshimasa
Fujisaki Takashi
Isohata Hideki
Fujitsu Limited
Hjerpe Richard A.
Tran Henry N.
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