由于市场份额萎缩,日本先锋、日立、东芝、富士通、板硝子和中国台湾台塑光电、中华映管、达人科技等知名厂商纷纷宣布退出PDP产业,而中国大陆对PDP项目的投资却不断加大,继南京华显高科和四川虹欧等离子平板显示器项目开工之后,2009年7月安徽鑫昊等离子项目在安徽合肥启动,致使全球PDP制造基地和技术中心逐渐向中国大陆转移,但PDP在未来的平板显示市场竞争中能否占有一席之地、形成一支独秀的局面,备受关注。PDP主要是利用稀有气体电离放出波长为100-200nm真空紫外光用以激发三基色荧光粉进而实现彩色显示,目前存在的主要问题是发光效率低、亮度低以及作为超大屏幕显示器(例如103英寸(261.62cm))能耗高。PDP的发光效率不仅与气体放电方式和驱动电路有关,而且与荧光材料的发光效率直接相关。以红色真空紫外荧光材料为例,系统总结了近年来在PDP新型荧光材料和真空紫外激发发光机理方面取得的进展,并对未来PDP的研发提出了前瞻性建议。
The international famous manufacturers of plasma display pannel (PDP), for example, Japanese Pioneer, Hitachi, Toshiba, Fujitsu and Nippon Sheet and Chinese Taiwan's Formosa Plastics Optoelectronics, Chunghwa Picture Tubes and Karho Technology, etc, have declared to abandon their production of PDP for share shrinking in marketplace. However, the investment in PDP still increased in China mainland. Following up the PDP projects of Huaxian High-Tech Co. , Ltd and Sichuan COC Display Devices Co. , Ltd, the other enginnering involving PDP production invested by Anhui Xinhao PDP Devices Co. , Ltd began to construct in July 2009 in Hefei of Anhui Province of China. It's a tendency that China mainland is becoming both global manufacturing base and global technical center of PDP, but there is also much worry and still be the focus of worldwide eyes whether the PDP manufacturers of China mainland can compete over in future flat panel display market. The color displaying of PDP is obtained by exciting three-primary phosphors with vacuum ultraviolet radiation from Xenon or Xenon-Helium discharges. The main short- comings of PDP is low luminous efficiency, low brightness and high energy consumption as super larger screen (such as 103 inch(261.62cm)) at present. The luminous efficiency of PDP is above all detemined by phosphors and also depends on the discharge of noble gas and driving circuit. Taking red phosphors for PDP as an example, the progress in the research of luminescent materials and the 1 mechanisms under VUV excitation in recent years are sys tematically summarized. In addition, some forward-looking recommendations for PDP research and development are provided.