Plasma display panel having improved display

Details Plasma display panel having improved display Plasma display panel having improved display

G - Physics

09

G

375/43, 313/1.9

G09G 3/00 (2006.01) G09G 3/28 (2006.01)

Patent

CA 1238127

ABSTRACT OF THE DISCLOSURE A plasma display panel having cathodes, anodes and trigger electrodes wherein the trigger electrodes correspond to a plurality of discharge electrodes which are sequentially scanned and wherein an insulating layer separates the trigger electrodes and the discharge electrodes and where a constant trigger voltage is supplied until the plurality of discharge electrodes corresponding to the trigger electrode have been activated. In the invention, the trigger voltage is quickly changed and is then returned to an intermediate level and the frequency of a trigger voltage pulse is reduced to one over the number of block discharged electrodes so that the power consumption of the trigger electrodes is greatly reduced and since the trigger voltage is returned to an intermediate level erroneous discharges will not be generated between inactive trigger electrodes and the other discharge electrodes to which data voltage pulses are supplied thus producing a high definition display. The trigger voltage may swing positive and negative directions with reference to an intermediate level and an ON potential low level of the cathodes which sequentially fall to a low level by scanning activation may be set to be the same as the intermediate level. Thus, the absolute value of the trigger voltage applied to the insulating layer or dielectric layer between the cathode and trigger electrodes can be substantially one-half a required value and plus or minus one-half with reference to an intermediate level and a breakdown voltage of the insulating layer can be decreased. Therefore, stable operation will be provided over long periods of time without dielectric breakdown and in addition the insulating layer can be thin and the trigger voltage can be decreased.

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