Modified ramp-reset waveform robust for ambient temperature in PDP

The changes in the discharge characteristics such as a firing voltage and IR emission among the three electrodes are examined relative to the ambient temperature and working gas pressure based on the Vt close-curve analysis method. The reset discharge does not occur sufficiently at high temperature due to the increase in the firing voltage, thereby resulting in accumulating the sufficient wall charges on the address electrode. As a result, a misfiring discharge often occurs at high temperature. To reduce the misfiring at high temperature, modified reset waveform that can maximize the plate gap discharge to accumulate the sufficient wall charges on the address electrode is proposed. As a result of adopting the proposed reset waveform, it is observed that stable address discharge is produced irrespective of the ambient temperature variation.