Effects of width of address electrode on sustain and address discharge characteristics in AC plasma display panel

The width of an address electrode is an important parameter to affect both the address and sustain discharge characteristics in AC-PDP. It is found numerically that as the width of an address electrode is wider, the capacitance between the sustain and address electrodes (C_AY) increases but the capacitance between the two sustain electrodes (C_XY) decreases. The resultant changes in the sustain and address discharge characteristics, such as a firing voltage, sustain voltage, discharge delay time and full-white luminance were examined in the 50-in. ac-PDP with a high Xe (>10 %) content. The increase in the address electrode width causes an increase in the firing and sustain voltage between the sustain electrodes, which are due to the decrease in the capacitance between two sustain electrodes and the increase in the wall charges accumulation toward the address electrode. In particular, the full-white luminance increases with an increase in the address electrode width. As the address electrode width becomes broaden, the sustain discharge path is lengthened toward the address electrode and the discharge volume is also enlarged. Therefore, the amount of the IR, VUV and Ne rays can be emitted considerably.