Light emitting structure, light device and backlight module
US9966505B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2015 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Jul 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a light emitting structure including a blue light source, a first fluorescent material layer and a second fluorescent material layer. The blue light source has a light emitting surface. The first fluorescent material layer covers the light emitting surface of the blue light source. The first fluorescent material layer consists of a first fluorescent material. An excitation band of the first fluorescent material is in a blue wave band, and an emission band of the first fluorescent material is in a green wave band. The second fluorescent material layer covers the first fluorescent material layer. The second fluorescent material layer consists of a second fluorescent material. An excitation band of the second fluorescent material is in a green wave band, and an emission band of the second fluorescent material is in a red wave band. A light device and a backlight module are also provided herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.