Phosphor thin film, preparation method, and EL panel
US6699596B2 · kind B2 · utility
4Cited by
9References
19Claims
0Family size
Inventors
Key dates
| Filing date | May 30, 2001 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | May 30, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention aims to provide a phosphor thin film eliminating a need for filters, having a satisfactory color purity and useful as the blue color in full-color EL displays, a method for preparing the same and an EL panel. Such objects are achieved by a phosphor thin film formed of a matrix material comprising barium thioaluminate as a main component to which magnesium is added and rare earth element, Eu is added as a luminescent center, a method for preparing the same, and an EL panel using the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.