An Adaptive Address Power Saving Method Based on the Prediction of Power Consumption in an AC PDP

Abstract

Address driver circuits are responsible for a significant portion of power consumption by a plasma display panel television. In the latest effort for the reduction of the power consumption by address driver circuits, the power-efficient operation mode is selected by controlling the voltage of the capacitor that affects the <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LC</i> resonance. This paper presents an analysis of power consumption by the address circuits and observes that the operation mode change in a previous work is too slow to achieve an efficient power reduction when the number of data switchings of each scan line changes abruptly in the input image. This paper proposes a new power reduction method with a fast selection of the operation mode based on the analysis of the power consumption by each address operation mode. The fast mode selection enables rapid change of the address operation mode and consequently leads to a reduction of power consumption by 22.2% when compared with the previous method.