Quantum dot light emitting device, backlight module, and liquid crystal display device
US10203547B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Nov 15, 2016 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Nov 15, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/36
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This disclosures provides a quantum dot light emitting device, a backlight module, and a liquid crystal display device, the quantum dot light emitting device including: a light emitting device configured to generate exciting light at a first wavelength; a first quantum dot package layer configured to absorb the exciting light at the first wavelength, and to generate converted light at a second wavelength; and a second quantum dot package layer configured to absorb the exciting light at the first wavelength, and to generate converted light at a third wavelength; wherein the first quantum dot package layer is located between the light emitting device and the second quantum dot package layer, and the third wavelength is shorter than the second wavelength, and longer than the first wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.