驱动电压频率对荫罩式等离子显示屏的影响  

Influence of driving voltage frequency on SM-PDP

作　　者：张健[1] 杨兰兰[1] 屠彦[1] 尹涵春[1] 

机构地区：[1]东南大学电子工程系,南京210096

出　　处：《东南大学学报（自然科学版）》2005年第3期351-355,共5页Journal of Southeast University：Natural Science Edition

基　　金：国家自然科学基金资助项目(60271016)

摘　　要：研究了荫罩式等离子显示屏(SM-PDP)的驱动电压频率从100kHz到250kHz变化情况下,显示单元放电特性的变化.结果表明:随着驱动电压频率的提高,在相同的时间内放电次数增加,使产生的真空紫外辐射能量增加,可以提高显示的亮度,获得更高的对比度和灰度等级,同时壁电荷的积累减小,使单次放电反应变弱、放电效率降低,因而过高的驱动频率,也不能起到改善图像质量的作用;同时电极上的电流峰值减小,而其随时间的平均值增大,在设计驱动电路时,必须考虑其影响.因此在设计SM-PDP时合理的选择驱动电压的频率,可以使PDP的性能有很大的提高.The discharge characteristics of shadow mask plasma display panel (SM-PDP) under different frequency of driving voltage from 100 kHz to 250 kHz are investigated. The result indicate that with the increase of the frequency of driving voltage, the number of discharge is added, then the energy of ultraviolet photon becomes larger and the brightness is enhanced, more grey levels and contrast can be realized. Meanwhile the wall charge becomes little, individual discharge gets weaker and the discharge efficiency reduces. The maximum current on the electrodes reduces and the average current increases, this should be taken into account in design of driving circuit of SM-PDP. Therefore, by reasonably choosing the frequency of driving voltage in design of SM-PDP, the POP can be made with better performance.

关 键 词：荫罩式PDP 驱动电压频率 放电效率 

分 类 号：TN136[电子电信—物理电子学]