公开(公告)号：EP1564777A4

公开(公告)日：2007-08-22

申请号：EP03772687

申请日：2003-11-12

申请人： MATSUSHITA ELECTRIC IND CO LTD

发明人： MORITA YUKIHIRO ,  KITAGAWA MASATOSHI ,  OISHI KIICHIRO ,  NISHITANI MIKIHIKO

IPC分类号： H01J9/02 ,  H01J11/12 ,  H01J11/22 ,  H01J11/24 ,  H01J11/26 ,  H01J11/34 ,  H01J11/40 ,  H01J17/49

CPC分类号： H01J11/40 ,  H01J9/02 ,  H01J11/12

摘要： A plasma display panel wherein a first substrate (11) provided with a protective layer (15) is so arranged as to face a second substrate with a discharge space therebetween and the peripheries of the two substrates are sealed and bonded together is disclosed. A surface of the protective layer (15) includes a first material and a second material having different electron emission characteristics. The first material and the second material are exposed to the discharge space, and at least one of the first and second materials exists in a dispersed state. The first material and the second material may respectively be a first crystal (15A) and a second crystal (15B), and the surface of the protective layer may be composed of the first crystal in which the second crystal is dispersed.