Semiconductor color-tunable broadband light sources and full-color microdisplays
US7982228B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2009 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Feb 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/841
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Methods and systems are provided that may be used to utilize and manufacture a light sources apparatus. A first light emitting diode emits light having a first wavelength, and a second light emitting diode for emitting light having a second wavelength. Each of the first and second light emitting diodes may comprise angled facets to reflect incident light in a direct toward a top end of the first light emitting diode. The second light emitting diode comprising angled facets may reflect incident light in a direction toward a top end of the second light emitting diode. A first distributed Bragg reflector is disposed between the top end of the first light emitting diode and a bottom end of the second light emitting diode to allow light from the first light emitting diode to pass through and to reflect light from the second light emitting diode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.