A new plasma display panel driving method was proposed to reduce the address period. The scan time of the address method using overlapping scan time overlaps with the next scan time during the formative lag time of the discharge. Thus, without reducing the address pulsewidth and the scan pulsewidth, the driving method can reduce the address period. We could overlap the scan time of about 100 300 ns. However, the driving method has a narrow address voltage margin compared with a conventional method. In order to improve the address voltage margin of the driving method, the scan direction is set to the opposite direction compared with the conventional direction. As shown in experimental results, the address voltage margin of the new driving method is increased by 7 10 V when the opposite scan direction is used.

In this paper, we propose the new reset waveform which shows high dark‐room contrast‐ratio and robustness for cross talk. We apply a ramp pulse to the address electrode after the erase X ramp pulse. And a constant bias voltage is applied to X electrode during the Y rising‐falling ramp and the address period. Using this method, we achieved a great dark‐room contrastratio 2750:1. However, the address minimum voltage was increased about 17∼37V compared with the conventional ramp reset method. We could reduce the minimum address voltage through the waveform optimizing. As a result, when VSB is −30V, we could reduce the address minimum voltage about 14∼28V and improve the dark‐room contrast‐ratio3000:1.

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In this paper, a new gray scale expression method that divides scan lines into multiple blocks is suggested. The proposed method can drive 16 sub‐fields per 1 TV field in the panel with XGA (1366×768) resolution. Because reset pulse is applied every 2 sub‐fields, both the contrast ratio and the dynamic voltage margin are sufficiently obtained in comparison with previous AWD (Address While Display) methods. In realizing 16 subfields, shortening the scan time in the erase address period was important. The X bias voltage in the erase address period affected the minimum address voltage but did not the delay time of address discharge. The delay time of address discharge was affected by the address voltage and the time interval between the last sustain discharge and the scanning time. We also evaluated the dynamic false contour. New method shows an improved image quality in horizontal moving, but discontinuous lines were observed at the boundaries of each block.