Patent · US Expired

Plasma display device

US6939480B2 · kind B2 · utility

4Cited by
3References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 23, 2002
Grant dateSep 6, 2005
Priority date
Expiry dateDec 10, 2022

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J2211/42
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

Disclosed is a plasma display device that provides high luminance and minimal degradation in luminance under panel operations. A blue phosphor in a phosphor layer has a crystal structure of MeMgSi2O6:Eu or Me3MgSi2O8:Eu (where, Me contains at least one of Ca, Sr, and Ba) produced with a precursor that is obtained by any one of methods: an aqueous solution synthesis method, a spray synthesis method, a hydrothermal synthesis method, and a hydrolysis method. The phosphor has an average particle diameter ranging from 0.1 to 3.0 μm.

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