A study on the discharge from various ramp waveforms in shadow mask plasma display panel

Xie Peilin, Tu Yan
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Abstract

Summary form only given. The weak discharge during the reset ramp period plays an important part in lowering the background luminance and improving contrast ratio of plasma display panel (PDP). In order to reduce the reset discharge intensity while keeping proper addressing state, influence of the reset waveform has been studied for the novel shadow mask PDP (SMPDP) in this paper. The discharge process of different ramp waveforms was investigated by both simulation and experiment methods. In the experiment, the test panel was lightened in the form of isolated pixels. Results showed that the background luminance and contrast ratio of SMPDP can be improved greatly after optimizing the reset ramp waveform. According to the results, the pulses of weak discharge were separate with each other, and the first weak discharge pulse was stronger than others. The intensity of the reset discharge decreased with the reduction of the slope while the number of the weak discharge increased. The discharge became weaker as the ramp-up voltage rose while the slope was fixed, and the number of the weak discharge pulses increased, which ensured to form proper wall voltage. Address delay time was also studied with various reset waveforms during a reset period. The simulation results coincided well with the results that got from the experiment. Accordingly, a proper ramp waveform could be found for SMPDP.
阴影罩等离子体显示面板中不同斜坡波形放电特性的研究
只提供摘要形式。复位斜坡期间的弱放电对降低等离子体显示面板的背景亮度和提高对比度起着重要的作用。为了在保持适当寻址状态的同时降低复位放电强度,本文研究了复位波形对新型阴影掩模PDP (SMPDP)的影响。采用仿真和实验两种方法研究了不同斜坡波形的放电过程。在实验中,测试面板以孤立像素的形式进行光照。结果表明,优化后的重置坡道波形可以大大提高SMPDP的背景亮度和对比度。结果表明,弱放电脉冲是相互分离的,且第一个弱放电脉冲较强。随着坡度的减小,复位放电强度减小,而弱放电次数增加。在坡面一定的情况下,随着升压电压的增大,放电逐渐减弱,弱放电脉冲数增加,保证了形成合适的壁电压。研究了不同复位波形在复位期间的地址延迟时间。仿真结果与实验结果吻合较好。因此,可以为SMPDP找到合适的斜坡波形。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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