| 摘要 |
PURPOSE: A driving device for a plasma display panel is provided to limit the amount of power consumed to within a predetermined power consumption regardless of the brightness level of an input picture, all the while maintaining an appropriate screen brightness that tracks the illuminance around the plasma display panel. CONSTITUTION: A plasma display panel driving device for driving, in accordance with picture signals, a plasma display panel(10), in which a plurality of discharge cells supporting display pixels are arranged in a matrix, comprises a resetting means for generating a resetting pulse for a reset discharge, which initializes each of the discharge cells to one of either a light-emitting cell state or a non-light-emitting cell state, and applies the resetting pulse to each of the discharge cells. A pixel data writing means applies to each of the discharge cells a scanning pulse for a selective discharge, which selectively sets the discharge cells to either the non-light-emitting cell state or the emission-cell state in accordance with pixel data corresponding to the picture signals. An emission sustaining means applies to each of the discharge cells a sustaining pulse for a sustain discharge, which causes light to be emitted repeatedly only from the discharge cells that are in the light-emitting cell state. And a light sensor(5) detects an ambient illuminance of the plasma display panel. A resetting pulse waveform adjusting means adjusts the level change rate at the leading edge portion of the resetting pulse in accordance with the illuminance.
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