Multiple quantum dot (QD) device
US9423083B2 · kind B2 · utility
1Cited by
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18Claims
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Key dates
| Filing date | Mar 7, 2014 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Aug 25, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/774
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting apparatus includes a housing structure, a light source supported within the housing structure, and a light coversion layer disposed above the light source. The light conversion layer comprises a plurality of non- or low-self absorbing quantum dots (QDs) embedded in a matrix material, each QD having a different light emission profile that is a function of a size and/or composition of the QD, each of the plurality of QDs selected to achieve a defined spectral emission profile for the lighting device when the plurality of QDs is illuminated by the light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.