Plasma display unit, phosphor and process for producing phosphor
US7208102B2 · kind B2 · utility
38Cited by
2References
18Claims
0Family size
Assignee
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Key dates
| Filing date | May 15, 2003 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Feb 3, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2211/42
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A plasma display device exhibits suppressed luminance degradation of a phosphor, a suppressed change in chromaticity and improved discharge characteristics as a result of suppression of adsorption of water or hydrocarbon-containing gas on a surface of a blue phosphor. A blue phosphor layer used in the plasma display device is formed of a compound expressed by Ba1−XMgAl10O17:EuX or Ba1−x−ySryMgAl10O17:EuX and includes at least one element that is selected from Nb, Ta, Pr, P, As, Sb, Bi and Tm which substitutes for a part of its Al or Mg element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.