Directional color conversion using photonic crystals with quantum dots
US11448906B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2019 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Oct 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/855
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color converter device includes an array of color conversion regions. The array of color conversion regions includes color conversion regions of a first type and color conversion regions of a second type that is distinct from the color conversion regions of the first type. A respective color conversion region of the array of color conversion regions includes a respective photonic crystal structure defining a respective two-dimensional pattern. The respective color conversion region includes a respective color conversion matrix. The color conversion regions of the first type converts light of a first color into light of a second color that is distinct from the first color and the color conversion regions of the second type converts the light of the first color into light of a third color that is distinct from the first color and the second color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.