Optoelectronic circuit comprising light emitting diodes
US11570865B2 · kind B2 · utility
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1References
13Claims
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Assignee
Inventors
Key dates
| Filing date | May 17, 2019 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | May 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8513
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
optoelectronic circuit intended to receive a variable voltage containing an alternation of rising and falling phases. The optoelectronic circuit includes light-emitting diodes and a switching device capable of allowing or of interrupting the flowing of a current through each light-emitting diode. Each light-emitting diode is covered with a photoluminescent layer. The photoluminescent layer covering at least one of the light-emitting diodes includes at least one first luminophore having a first decay constant and at least one second luminophore having a second decay constant different from the first decay constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.