Light emitting device
US10763407B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2019 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Mar 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/872
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Alight emitting device includes a package, alight emitting element, and a light-transmissive encapsulant. The package has a top surface and a recessed portion formed with an opening at the top surface. The light emitting element is located on a bottom surface of the recessed portion. The light-transmissive encapsulant is supplied in the recessed portion. The package is provided with a groove formed in the top surface and surrounding the opening. A surface of the groove includes depressed portions and projecting portions. The encapsulant covers at least a part of the surface of the groove, and a portion of the encapsulant that covers the surface of the groove includes a surface irregularity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.