Light emitting device with metal electrode layer having protrusion portions
US9112114B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2014 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Jan 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/835
Abstract
Disclosed is a light emitting device including a conductive substrate, a first electrode layer disposed on the conductive substrate, a light emitting structure disposed on the first electrode layer, the light emitting structure including a first semiconductor layer, a second semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer, and a second electrode layer electrically connected to the second semiconductor layer, wherein the first electrode layer includes a metal electrode layer disposed on the conductive substrate, a transparent electrode layer disposed on the metal electrode layer, and a plurality of contact portions extending from the metal electrode layer, the contact portions vertically passing through the transparent electrode layer and contacting the light emitting structure, wherein the contact portions are spaced from one another by a predetermined distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.