Patent · US Expired

Plasma picture screen with coated phosphor

US6602617B1 · kind B1 · utility

6Cited by

5References

4Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Thomas Justel · Witten, DE
Cornelis Reinder Ronda · Aachen, DE
Volker Weiler · Aachen, DE

Key dates

Filing date	Aug 7, 2000
Grant date	Aug 5, 2003
Priority date	—
Expiry date	Aug 7, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/917
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A plasma picture screen with a phosphor preparation comprising a phosphor with a coating which comprises a phosphate MPO4, wherein M is a metal chosen from the group Al, Sc, Y, Lu, Gd, and La. This coating is effective in counteracting the thermal degradation of the phosphor during the manufacture of the plasma picture screen.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.