The driving characteristics and wall-charge model of an ac plasma-display panel (ACPDP) with an auxiliary electrode were investigated by using voltage-transfer closed-surface modeling. To understand the wall-charge behavior of an ACPDP with an auxiliary electrode qualitatively, voltage-transfer closed-surface analysis was applied to a test panel under the full driving waveform. The voltage-transfer closed surfaces were obtained after the sustain, reset, and address periods, when the full-stage driving waveform was employed with the test panel. As a result, it was proven that the wall-charge model predicted in the previous work corresponded with the wall-charge behavior of an ACPDP with an auxiliary electrode. Also, based on the resultant form after the address period, the wall-charge model after the address period was recently added and the entire wall-charge model was completed in this work. In addition, by investigating the trajectory of the cell-state movement during the reset period, it was confirmed that the priming effect affected the reduced discharge time lag of an ACPDP with an auxiliary electrode under the newly proposed driving waveform for reducing address time lag. time lag,