中文摘要：

保护膜的外逸电子发射有利于缩短PDP响应时间并使放电稳定进行，但同时也会带来壁电荷的损失。文章评述了保护膜的外逸电子发射特性致使壁电荷损失的因素，并讨论了目前为改善壁电荷损失采用的方法，为合理利用保护膜的外逸电子发射特性提供了良好的研究基础。

英文摘要：

Exo-electronic emission from protective layer can improve the response time and stability of the discharge for PDP. Meanwhile, it also results in the loss of wall charge during the driving. This paper commented on the factors to effect the loss of the wall charge caused by exo-electronic emission and the ways to modify the wall charge accumulating, which provides directions to utilize optimally the exo-electronic emission performance.