| 摘要 |
PROBLEM TO BE SOLVED: To allow a cell selected by write discharging to move to a maintenance discharging pulse and to stably perform maintenance discharging by holding the potential of a starting maintenance discharging pulse negative about a data electrode potential for a maintenance discharging period and holding the high-potential side and low-potential side of 2nd and succeeding maintenance discharging pulses positive and negative about the data electrode. SOLUTION: When the starting maintenance discharging pulse is applied for the maintenance discharging period, the data electrode is set to GND at the same potential as one of a scanning electrode and a maintenance electrode is applied with a negative maintenance discharging pulse Psf (applied voltage Vsf). At the time of 2nd maintenance discharging, the maintenance electrode is applied with a positive 1/2 maintenance discharging pulse Ps<+> which is almost a half as high as the maintenance discharging voltage Vs and the scanning electrode is applied with a negative 1/2 maintenance discharging pulse Ps<-> which is nearly a half as high as the maintenance discharging voltage Vs in the same timing. For 3rd maintenance discharging, the positive polarity and negative polarity are replaced between the scanning electrode and maintenance electrode. The replacement of the polarities is repeated thereafter. |
