Light emitting device, light emitting device package, and lighting system
US8575635B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2011 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Sep 13, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/841
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Provided are a light emitting device, a light emitting device package, and a lighting system. The light emitting device includes a substrate, a light emitting structure comprising a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer, the light emitting structure being disposed on the substrate, a nonmetal pattern disposed between the substrate and the active layer, the nonmetal pattern being spaced from the substrate, and an air gap disposed on a side surface of the nonmetal pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.