Driving method with adaptive subfield coding applied to alternating current plasma display panels

The image quality suffers from the lack of grayscale expression capability when the 'simple-accumulation'-lighting-mode is applied to alternating current plasma display panels (AC PDP). To solve the problem, an adaptive subfield coding (ASC) driving method was proposed, in which subfield vector is adaptively figured out based on the normalized histogram of input image every TV field. The calculated subfield vector can express the most grayscale information of input image. And then the sustain pulse number of each subfield is adjusted according to the calculated subfield vector. Simulation results show that, the proposed method can eliminate the dynamic false contours in AC PDPs, and overcome the lack of grayscale expression capability caused by the simple-accumulation'-lighting-mode. It can provide good grayscale expression in AC PDPs.