Fujitsu Corporation

Junichi Okayasu

Naoki Matsui

Fumitaka Asami

Masaya Tajima

Takashi Fujisaki

Yoshimasa Awata

Kiyoshi Takata

Kenji Awamoto

Yoshikazu Kanazawa

Shinsuke Tanaka

Shigetoshi Tomio

Katsuhiro Ishida

Nobuyoshi Kondo

Hideki Isohata

A display has a panel, and first and second electrodes. The first and second electrodes define a matrix of cells on the panel. The second electrodes, which correspond to lines of the cells, are scanned to select the cell lines one by one. The first electrodes are driven to set display data for a selected one of the cell lines. The display also has a sequence setting unit for setting sequences of scanning the second electrodes, and a sequence selection unit for selecting one of the sequences that minimizes the current and power consumption of a first-electrode driver without deteriorating the quality of the displayed images.

Display and method of driving the display capable of reducing current and power consumption without deteriorating quality of displayed images

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.

Plasma display device

Growing community of inventors

Kawasaki, Japan

Junichi Okayasu