| Title |
Selective Reset Waveform using Wide Square Erase Pulse in an ac PDP |
| Authors |
정동철(Jeong, Dong-Cheol) ; 황기웅(Whang, Ki-Woong) |
| Keywords |
플라즈마 디스플레이 ; 초기화 ; 선택적 초기화 PDP ; Reset ; Selective reset |
| Abstract |
In this paper, we propose a newly developed selective reset waveform of a ac PDP using the wide erase pulse technique with the control of address bias voltage. Although it is generally understood that the wide pulse erasing methode shows the narrow driving margin in an opposite discharge type ac PDP, we could obtain a moderate driving margin in a 3-electrode surface discharge type ac PDP. The obtained driving margin shows a strong dependency on the sustain voltage and the address bias voltage. The lower the sustain and the address bias voltage, the wider the driving margin. The pulse width of the proposed waveform is only 10μs, which gives additional time to the sustain period, hence increases the brightness. The brightness and contrast ratio increase about 20% together comparing to the conventional ramp type selective reset waveform with the driving scheme of 10 subfield ADS method. The driving margin was measured with the line by line addressed pattern on the white test panel of 2inch diagonal size and the discharge gas was Ne+Xe4%, 400torr. |