ABSTRACT: Objective In order to reduce the flicker in color plasma display panel (PDF) , the highly peaked light output at certain positions and the strong luminance difference among subfields, which cause flicker in PDF, is analyzed; and a flicker index method is developed to evaluate flicker in PDF based on the flicker theory and the electroencephalograph response model for luminance. Methods This method considers flicker as a main result of the fundamental frequency component of luminance superimposed on the DC-component, the flicker index is defined as ratio between the positive square roots of the sum of the two square components. Results <5 Conclusion The calculation results of flicker index indicate that flicker can be obviously weakened via increase of subfield number, symmetrical selection and homogeneous interlaced distribution of major weight subfields . Flicker can be further reduced by choosing the suitable subfield order according to gray scale region of image.
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