非对称荫罩式PDP放电特性和工作参数的模拟研究  

Simulation of Discharge Characteristics and Operation Parameters of Non-Symmetric Shadow Mask Plasma Display Panel

作　　者：杨兰兰[1] 屠彦[1] 樊兆雯[1] 张雄[1] 姜有燕[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中心,南京210096

出　　处：《真空科学与技术学报》2007年第4期296-301,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.60271016;No.60571033);东南大学杰出青年基金(No.4006001007)

摘　　要：本文采用二维流体模型模拟了非对称荫罩式PDP结构的放电过程和放电特性。非对称荫罩式PDP结构的放电过程表明,该结构可产生斜拉的长路径放电,有效地提高放电效率。在5.8×104Pa,Ne+10%Xe的工作条件下,非对称结构相较对称结构发光效率提高了32%左右。同时通过对非对称结构各种参数的模拟表明,在扫描电极的中心偏离荫罩下开孔中心150μm,扫描电极宽度在60μm左右,工作气体压强在5.9×104Pa-6.6×104Pa,Xe比例在15%-20%左右,可使放电效率提高约65%。Discharge characteristics and operation parameters of non-symmetric shadow mask plasma display panel（SM-PDP） were simulated with two-dimensional fluid simulation model. The simulated results show that the non-symmetric shadow mask structure considerably improves the discharge characteristics. For example, in a gas mixture of Ne ＋ 10% Xe with a pressure of 5.8 × 10^4 Pa, the long-distance discharge can be observed;the discharge efficiency increases by 32% as compared to that of the symmetric shadow mask PDP.The discharge efficiency can be optimized under the following conditions： the displacement between the scan electrode center and the shadow mask＇ s lower aperture center is 150 μa,the scan electrode width is 60 μa, the gas pressure is about 5.9× 10^4 Pa- 6.6× 10^4 Pa and a xenon ratio is 15% -20%.

关 键 词：等离子体平板显示 非对称荫罩式PDP 长路径放电 流体模拟 放电效率 

分 类 号：TN136[电子电信—物理电子学]