AC TFEL device having blue light emitting thiogallate phosphor
US5309070A · kind A · utility
37Cited by
7References
16Claims
0Family size
Inventors
Key dates
| Filing date | Mar 12, 1991 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Mar 12, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B33/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An AC TFEL device includes a front electrode set deposited on a transparent substrate and a rear electrode set, the electrode sets enclosing a thin film laminate which includes a pair of insulating layers sandwiching an alkaline earth thiogallate thin film phosphor doped with a rare earth activator. The thiogallate phosphor layer is capable of producing blue light of sufficient intensity to create a full color TFEL panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.