White LED, backlight module and liquid crystal display device
US9893252B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2015 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Jun 27, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133614
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A white LED, which includes a substrate, at least one monochromatic LED chip disposed on the substrate, a reflector cup disposed on the substrate and surrounding the monochromatic LED chip, an encapsulating colloid filled in the reflector cup to seal the monochromatic LED chip, and a first quantum dot structure and a second quantum dot structure sealed in the encapsulating colloid, and light generated by the monochromatic LED chip, light generated by exciting the first quantum dot structure and light generated by exciting the second quantum dot structure are mixed to form a white light. A backlight module having the white LED and a liquid crystal display device having the backlight module is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.