Light emitting device
US11018276B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2019 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Jul 2, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L25/0753
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light emitting device includes a first pixel that includes a first light-emitting structure, a first color conversion layer on the first light-emitting structure, and a first multi-layered filter on the first color conversion layer, and a second pixel that includes a second light-emitting structure, a second color conversion layer on the second light-emitting structure, and a second multi-layered filter on the second color conversion layer. Each of the first and second multi-layered filters includes at least one stack including a first film and a second film. The first multi-layered filter outputs light of a wavelength band that is different from a wavelength band of light output from the second multi-layered filter. The first multi-layered filter reflects light not output back into the first pixel and the second multi-layered filter reflects light not output back into the second pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.