公开(公告)号：DE50011803D1

公开(公告)日：2006-01-12

申请号：DE50011803

申请日：2000-09-12

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： BECHTEL DR ,  BUSSELT DIPL-ING ,  GLAESER DR ,  FELDMANN DR ,  OPITZ JOACHIM DR ,  WIECHERT DETLEF UWE

IPC: H01J11/12 ,  H01J11/44 ,  H01J61/40 ,  H01J65/04

Abstract: Plasma picture screen comprises a front plate (1) with a glass plate (3) having a dielectric layer (4) and a protective layer (5), and a back plate (2). A number of plasma cells containing gas are also provided and several electrodes (6,7,11) are arranged on the front plate and the back plate to produce quiet electrical charges. A UV-light reflecting layer (8) is formed on the protective layer. Preferred Features: The UV-light reflecting layer is made of e.g. lithium oxide or an oxide of magnesium, calcium, strontium or barium, and has a thickness of 0.5-5 microns m.

公开(公告)号：DE59810203D1

公开(公告)日：2003-12-24

申请号：DE59810203

申请日：1998-06-22

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： BECHTEL DR ,  CZARNOJAN WOLFRAM ,  MAYR WALTER ,  JUESTEL DR ,  NIKOL DR ,  RONDA CORNELIS

IPC: C09K11/08 ,  C09K11/02 ,  C09K11/64 ,  C09K11/77 ,  H01J9/227 ,  H01J11/02 ,  H01J17/04 ,  H01J17/49 ,  H01J29/18 ,  H01J29/20

Abstract: A novel phosphor preparation consists of an UV phosphor with a coating of one or more catenated polyphosphates of alkaline earth metals, zinc, cadmium and/or manganese. Also claimed is a plasma display panel containing the above phosphor preparation, the catenated polyphosphates preferably having a chain length of 3-90. Preferably, the phosphor is an aluminate phosphor, especially Eu :Ba(Al,Mg)11O19, and the coating consists of a catenated alkaline earth metal polyphosphate containing 0.1-20 wt.% catenated zinc, cadmium or manganese polyphosphate.