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An Improved Subfield Method for PDP Employing a Constant Slope Code  

Lee, Young-Sam (Julinet Co. LTD)
Kim, Rin-Chul (Dept. of Electrical and Computer Engineering, University of Seoul)
Lee, Byung-Uk (Dept. of Information Electronics, Ewha Womans University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.39, no.5, 2002 , pp. 504-512 More about this Journal
Abstract
This paper presents a new subfield method that can alleviate the visual artifact called the dynamic false contour (DFC), which occurs on plasma display panels. Nothing that the DFC is caused by the difference of time intervals between the adjacent subfields, we propose a constant slope code, in which the differences are maintained to be constant. Also, we propose a subfield code that can minimize the mean absolute error, considering the trade-off between the peak magnitude of the error and its duration. We will show that the proposed subfield method maintains an adequate performance in the view point of the human visual system, since the bound of the errors increases with the gray scale.
Keywords
PDP; dynamic false contour; slope constant code;
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  • Reference
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