Light-emitting diodes, light-emitting diode arrays and related devices
US11233183B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2019 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Aug 20, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/882
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Light-emitting diodes (LEDs), LED arrays, and related devices are disclosed. An LED device includes a first LED chip and a second LED chip mounted on a submount with a light-altering material in between. The light-altering material may include at least one of a light-reflective material and/or a light-absorbing material. Individual wavelength conversion elements may be arranged on each of the first and second LED chips. The light-altering material may improve the contrast between the first and second LED chips as well as between the individual wavelength conversion elements. The light-altering material may include at least one of nanoparticles, nanowires, mesowires, or combinations thereof. LED devices may include submounts in modular configurations where LED chips may be mounted on adjacent submounts to form an LED array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.