MicroLED with integrated controllable beam steering and/or shaping
US10247935B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2016 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Nov 21, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H29/142
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The disclosed examples relate to various implementations of a micro-light emitting diode upon which is built a controllable variable optic to provide a chip-scale light emitting device. An example of the controllable variable optic described herein is a controllable electrowetting structure having a leak-proof sealed cell with a first fluid having a first index of refraction and a second fluid having a second index of refraction. The controllable electrowetting structure may be integrally formed on or in a substrate or semiconductor material associated with the micro-light emitting diode in alignment with one or more of the light emitting diodes of the micro-LED device to provide a controllable lighting distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.