Lighting device having a patterned conformal coating doped with a luminescent material
US9099618B1 · kind B1 · utility
1Cited by
8References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2014 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Apr 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/0361
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A lighting device is provided, comprising: a substrate; two or more light-emitting elements formed over the substrate; a first transparent conformal layer formed over the two or more light-emitting elements in a pattern, the first transparent conformal layer being doped with a luminescent material; a second transparent conformal layer formed over a portion of the substrate not covered by the two or more light-emitting elements, the second transparent conformal layer not being doped with the luminescent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.