EL lamp with increased phosphor density
US6528943B2 · kind B2 · utility
2Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2001 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Jun 1, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B33/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Brightness is improved, without decreasing lamp life, by driving an EL lamp at higher voltage and less current, by increasing phosphor loading, by low loss dielectric, and by depositing the phosphor layer in two passes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.