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This paper presents design and development of driving waveforms to improve efficacy, contrast, and resolution for ac plasma display panels (PDPs). In the paper, the conventional driving waveforms are first reviewed, and the proposed driving waveforms are then discussed. The driving of PDPs in each subframe is divided into three periods: the reset period, scan period, and sustain period. During the reset period, the proposed ramp-like reset waveforms can enhance the contrast and resolution, and can lower the scan voltage while still sustaining a reliable wail-charge control. Additionally, a square sustain waveform stacked with the ramp-like waveform can induce self-erasing discharges which will improve efficacy during the sustain period. Operation of a PDP and comparison among various driving waveforms are also presented. Experimental results measured from a 46-in PDP system have verified the feasibility of the proposed driving waveforms. Index Terms--AC plasma display panel (PDP), high-definition television (HDTV), linear-ramp waveform, self-erasing discharge.

This paper presents a switch-mode approach to efficiently and flexibly generating reset waveforms for ac plasma display panels (PDPs). In the paper, the existing reset waveforms and circuits are first reviewed, and the proposed reset circuits for generating reset waveforms are then discussed. The proposed reset circuits are based on a flyback converter topology, which can generate reset waveforms more efficiently and can have more degrees of freedom in programming the waveforms. With the proposed approach, high-contrast ratio and resolution can still be sustained. Moreover, power conversion efficiency can be improved significantly, and components for generating various voltage levels can be reduced. Hardware implementation and measurements from a 46-in PDP system have verified the theoretical discussions. Index Terms--AC plasma display panel (PDP), high-definition TV, linear-ramp waveform, self-erasing discharge.