P-81: Image Sticking Cartography on PDP TV: A New Quantitative Measurement

Image sticking phenomenon is currently one of the most serious problems of PDP for television applications. In this paper, we introduce a new automated solution to measure quantitatively the temporal image sticking on this type of display. The method is based on the use of a high quality and rapid 2D luminance meter that takes images of the PDP versus time. The panel is burned with a given test pattern during a fixed time and then switched to dark or bright state. The temporal evolution of the remaining image sticking level is followed in real time by the luminance meter. For quantitative cartography a chessboard is used as test pattern and the temporal evolution of each elemental pattern is deduced and adjusted with exponential decays. Quantitative information on the time constant and the amplitude of the effect are deduced on the entire surface of the panel. So the quality of each panel can be precisely determined which allows quality control at the end of the fabrication process and quantitative comparisons between different panels.