| FLICKER INDEX METHOD FOR EVALUATING FLICKER IN COLOR PDPs |
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| 作者姓名： | 张小宁 刘纯亮 |
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| 作者单位： | Institute of Physical Electronics and Devices，Xi'an Jiaotong University，Xi'an 710049，China，Institute of Physical Electronics and Devices，Xi'an Jiaotong University，Xi'an 710049，China |
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| 基金项目： | Thisprojectwassupportedbythe0205ProjectforScienceandTechnology of china edncation ministry. |
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| 摘 要： | Motionartifacts ,thenumberofvisiblegraylevelsandlargeareaflickerarethemainissuesaf fectingimagequalityincolorPDPs1] .Thehighlyflickeringimagescausemoreseverefatigueofbrainthanofeyes2 ] .Inordertoreduceflickereffectively ,theframerateand/orhorizontalfrequencyaredoubledtopreventlargeareaflickerinsuchCRTtelevisionsets.However ,itisundesirabletoadoptframerateconversiontechnologyincolorPDPswhenaddressdisplayseparated (ADS)drivingmethodisused1] .Athigherframerate ,lesstimeisavailableperframe…
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| 关 键 词： | PDP DC INDEX |
FLICKER INDEX METHOD FOR EVALUATING FLICKER IN COLOR PDPs |
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| Zhang Xiaoning,Liu Chunliang Institute of Physical Electronics and Devices,Xi'an Jiaotong Universit y,Xi'an ,China..FLICKER INDEX METHOD FOR EVALUATING FLICKER IN COLOR PDPs[J].Academic Journal of Xi’an Jiaotong University,2004,16(2):119-121,131. |
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| Authors: | Zhang Xiaoning Liu Chunliang Institute of Physical Electronics and Devices Xi'an Jiaotong Universit y Xi'an China |
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| Institution: | Institute of Physical Electronics and Devices, Xi'an Jiaotong University, Xi'an 710049, China. |
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| Abstract: | Objective In order to red uc e the flicker in color plasma display panel (PDP), the highly peaked light outpu t at certain positions and the strong luminance difference among subfields, whic h cause flicker in PDP, is analyzed; and a flicker index method is developed to evaluate flicker in PDP based on the flicker theory and the electroencephalograp h response model for luminance. Methods This method considers f licker as a main result of the fundamental frequency component of luminance supe rimposed 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 & Conclusion The calculation results of flicker index indicate that flicker can be obviously weakened via increase of subfield number, symmetrical s election and homogeneous interlaced distribution of major weight subfields . Fli cker can be further reduced by choosing the suitable subfield order according to gray scale region of image. |
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| Keywords: | plasma display panel (PDP) subfield flicker |
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