Patent · US Expired

Plasma display with enhanced contrast and protective layer

US6750610B2 · kind B2 · utility

1Cited by

5References

4Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Hans-Helmut Bechtel · Roetgen, DE
Wolfgang Busselt · Roetgen, DE
Joachim Opitz · Aachen, DE
Harald Glaeser · Aachen, DE

Key dates

Filing date	Apr 30, 2002
Grant date	Jun 15, 2004
Priority date	—
Expiry date	May 13, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH01J2211/444
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A plasma display panel having a structured black matrix (8) which is coated with a reflecting layer (9) on the side turned away from the viewer. Visible light incident from outside is absorbed by the black matrix (8) and light incident from inside is reflected by the reflecting layer (9). This enhances the LCP value of the whole plasma screen. A protective layer (5) such as MgO is deposited on the black matrix and reflecting layer and so formed over the black matrix and said reflecting layer so as to reduce undesired reactions of the black matrix and the reflecting layer with the dielectric layer, such as during high temperature conditions during manufacture.

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