Ne-Xe混合气体对荫罩式等离子体显示器放电影响的研究  

Influence of Ne-Xe Gas Mixture on Discharge of Shadow Mask Plasma Display Panels

作　　者：朱笛[1] 张雄[1] 樊兆雯[1] 杨兰兰[1] 屠彦[1] 李青[1] 况亚伟[1] 王保平[1] 

机构地区：[1]东南大学电子科学与工程学院显示技术研究中心,南京210096

出　　处：《真空科学与技术学报》2011年第3期330-335,共6页Chinese Journal of Vacuum Science and Technology

基　　金：国家自然科学基金资助项目(No.60571033);国家863项目(No.2008AA03A308);高等学校学科创新引智计划(111计划)资助项目(B07027)

摘　　要：本文使用7英寸荫罩式等离子体显示器(SM-PDP)的实验小屏,在真空系统上动态地改变混合气体中Xe浓度和气体压强,测量了着火电压、发射光光强、电子温度、电流、亮度和效率等参数,并分析了混合气体对(SM-PDP)放电的影响。结果表明,提高Xe浓度和气体压强虽然带来了着火电压的升高,但是同时也使得电流下降,亮度和效率大幅提高。通过提高Xe浓度和气体压强,导致电子和中性粒子的碰撞截面变大:一方面电子的碰撞几率增加,使得放电中电子温度降低,增加了基态Xe原子到低能级的直接激发;另一方面中性粒子的碰撞几率增加,使得173 nm的真空紫外线辐射增强,从而改善总的气体放电效率。The discharge properties,including the firing voltage,emission spectrum,electron temperature,current,luminance and efficiency of the 7 inch prototyped shadow mask plasma display panels（SM-PDP） dynamically filled with different Ne-Xe gas mixtures,were studied in vacuum.The influence of the Ne-Xe gas mixture on the discharge properties of the SM-PDP was evaluated.The results show that the Xe ratio and pressure of the mixture significantly affect its discharge properties.The increases of Xe contents and the mixture pressure,accompanied with an increase of firing voltage,resulted in a reduction of current and a considerable enhancement of luminance and efficiency.Possible mechanisms is that as Xe contents and the pressure increase,the collision cross-sections increase,of the electronelectron,electron-atom,and atom-atom systems,resulting in a lower electron temperature and more direct excitation of neutral Xe atoms in ground state.Moreover,an increase of the Xe-Xe collision cross-section leads to an improvement of discharge efficiency because of a stronger 173 nm vacuum ultraviolet emission.

关 键 词：荫罩式等离子体显示器 Xe浓度 气体压强 放电效率 

分 类 号：TN136[电子电信—物理电子学]