METHOD OF DRIVING PLASMA DISPLAY DEVICE AND PLASMA DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Sep 19, 2013
app pub date -
Dec 1, 2011
filing date -
Dec 2, 2010
priority date (Note) -
Abandoned
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Abstract
In a plasma display apparatus, contrast is enhanced and a stable address discharge is caused. For this purpose, one of a forced initializing operation and a selective initializing operation is performed in initializing periods. A specified-cell initializing subfield and a selective initializing subfield are set in one field. In the specified-cell initializing subfield, the forced initializing operation is performed on specified discharge cells and the selective initializing operation is performed on the other discharge cells. In the selective initializing subfield, the selective initializing operation is performed on all the discharge cells. In the selective initializing period, a down-ramp waveform voltage is applied to the scan electrodes and a positive voltage is applied to the data electrodes. In the selective initializing subfield, based on the load calculated in the address period of the immediately preceding subfield, the minimum voltage of the down-ramp waveform voltage is controlled.
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