Light-emitting device and manufacturing method thereof
US10553761B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2019 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Jan 28, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/032
Abstract
A light-emitting device includes a metal connecting structure; a metal reflective layer on the metal connecting structure; a barrier layer between the metal connecting structure and the metal reflective layer; a light-emitting stack on the metal reflective layer; a dielectric layer between the light-emitting stack and the metal reflective layer, and a first extension electrode and a second extension electrode on the light-emitting stack and away from the metal reflective layer. The dielectric layer includes a first part and a second part separated from the first part from a cross section of the light-emitting device. The first extension electrode and the second extension electrode respectively align with the first part and the second part. From a cross section of the light-emitting stack, the first extension electrode has a first width and the first part has a second width larger than the first width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.