Light emitting device, light emitting device package, and lighting device system
US8304800B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2011 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | May 5, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/872
Abstract
A light emitting device includes a substrate, a light emitting structure including a first conductive semiconductor layer having an exposed region, an active layer, and a second conductive semiconductor layer on the substrate, a first electrode on the exposed region of the first conductive semiconductor layer, and a second electrode on the second conductive semiconductor layer, wherein a side of the light emitting structure includes a first sloped side sloped from a reference plane, the first sloped side includes a concave-convex pattern having a concave-convex structure in which a first direction length is greater than a second direction length, the reference plane is a plane perpendicular to a direction in which the substrate faces the light emitting structure, and the first direction is a sloped direction of the first sloped side and the second direction is a lateral direction of the first sloped side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.