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Multiple Selective Write for Video Plasma Panel Disclosure Number: IPCOM000040387D
Original Publication Date: 1987-Nov-01
Included in the Prior Art Database: 2005-Feb-02

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Criscimagna, TN Hoffman, HS Knecht, WR Trushell, JB [+details]


If continuous refresh frames are used on a plasma panel, more panel lines can be updated between refreshes if the average time required to selectively write a line is reduced. In video mode, sustain signals are employed to light the panel, so their time period can be slightly extended to provide for a selective write pulse superimposed on the sustain. If more than one selective write is superimposed on the same sustain, the average period for a selective write will be reduced. In normal operation, a sustain signal requires essentially equal periods of opposite polarity to properly switch the ionization which produces the light. The time for one of the polarities can be extended to superimpose a selective write pulse. It can also be extended further to allow additional selective write pulses at other addresses.