发明名称 |
METHOD FOR POWER LEVEL CONTROL OF A DISPLAY DEVICE AND APPARATUS FOR CARRYING OUT THE METHOD |
摘要 |
<p>Plasma Display Panels (PDP) are becoming more and more interesting for TV technology. One important criterion for picture quality is the Peak White Enhancement Factor PWEF. This invention proposes a method for power level control in a display with which the PWEF can be increased and which is characterised by: the provision of a set of power level modes for the sub-field coding, wherein to each power level mode a characteristic sub-field organisation belongs, the sub-field organisations being variable in respect to one or more of the following characteristics: the number of sub-fields the sub-field type the sub-field positioning the sub-field weight the sub-field pre-scaling a factor for the sub-field weights which is used to vary the amount of small pulses generated during each sub-field; and wherein the method comprises the steps of determining a value (AP) which is characteristic for the power level of a video picture and selecting a corresponding power level mode for sub-field coding. The invention further comprises an apparatus for carrying out the method for power level control. <IMAGE></p> |
申请公布号 |
EP1149374(A1) |
申请公布日期 |
2001.10.31 |
申请号 |
EP20000901118 |
申请日期 |
2000.01.20 |
申请人 |
THOMSON LICENSING S.A. |
发明人 |
CORREA, CARLOS;WEITBRUCH, SEBASTIEN;ZWING, RAINER |
分类号 |
H04N5/66;G09G3/20;G09G3/28;G09G3/288;G09G3/294;(IPC1-7):G09G3/28 |
主分类号 |
H04N5/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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