External light efficiency of light emitting diodes
US8395167B2 · kind B2 · utility
10Cited by
60References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2007 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Feb 11, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/835
Abstract
A method to improve the external light efficiency of light emitting diodes, the method comprising etching an external surface of an n-type layer of the light emitting diode to form surface texturing, the surface texturing reducing internal light reflection to increase light output. A corresponding light emitting diode is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.