EL phosphor laminate thin film and EL device
US6734469B2 · kind B2 · utility
5Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Nov 19, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B33/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An object of the invention is to provide an EL phosphor laminate thin film and EL device which can emit light at a high luminance. The object is achieved by stacking a phosphor thin film and a dielectric thin film one on the other wherein the phosphor thin film comprises at least one compound selected from an alkaline earth thioaluminate, an alkaline earth thiogallate and an alkaline earth thioindate as a main component, and a rare earth element as a luminescence center, and the dielectric thin film comprises an alkaline earth-containing oxide and/or a titanium-containing oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.