Multi-segment monolithic LED chip
US11251348B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2015 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Jun 24, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/858
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Described herein are LED chips comprising pluralities of active regions on the same submount. These active regions are individually addressable, such that beam output from the LEDs can be controlled simply by selectively activating the desired active region in the plurality without resorting to incorporation of advanced optics and reflectors comprising complex moving parts. In some embodiments, one or more active regions can surround one or more other active regions. In some embodiments, the various active regions are individually addressable by virtue of each active region comprising its own anode and sharing a common cathode. In some embodiments, the various active regions are individually addressable by virtue of each active region comprising its own cathode and sharing a common anode. In some embodiments, each active region comprises its own anode and its own cathode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.