Charge spreading and its effect on AC plasma panel operating margins

Like normal wall charges in an ac plasma panel, the spread charges from neighbor "on" cells to an "off" cell site can cause an increase or decrease in the required write voltage depending on the relative location of the write pulse with respect to sustain pulses. The net changes in write voltage can be accurately measured. The results obtained show that spread charges increase sharply with panel resolution and have a dominant influence over other priming effects on operating margin, e.g., to compensate for the wall voltage due to spread charges, an additional 15.5 V, or 10 percent of the voltage used to write an isolated cell, is required to write a cell which is located in the middle of a cluster of"on" cells on a high resolution 512-60 panel.