Light emitting diode chip having multi microstructure substrate surface
US9548419B2 · kind B2 · utility
0Cited by
15References
24Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Oct 23, 2014 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Oct 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/032
Abstract
A light emitting diode chip including a substrate and a light emitting diode element layer is provided. The substrate has a growth surface and a plurality of microstructures on the growth surface, wherein an area of the growth surface occupied by the microstructures is A1 and an area of the growth surface not occupied by the micro-structures is A2, wherein A1 and A2 satisfies the relation of 0.1≦A2/(A1+A2)≦0.5. The light emitting diode element layer is disposed on the growth surface of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.