Light-emitting device, and display apparatus, which can efficiently emit, to outside, fluorescence generated in fluorescent layer and can realize high-luminance light emission and in which generation of blurriness and fuzziness of display is suppressed
US9091415B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2012 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Sep 11, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133617
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-emitting device includes an excitation light source that emits excitation light; a first substrate which is disposed so as to face the excitation light source and on which a fluorescent layer and a first low-refractive-index layer are formed, the fluorescent layer being excited by the excitation light to emit fluorescence; and a barrier that surrounds side surfaces of the fluorescent layer, the side surfaces extending in a stacking direction of the excitation light source and the first substrate. At least a portion of the barrier that faces the fluorescent layer has a light-scattering property. The first low-refractive-index layer is located between the fluorescent layer and the first substrate. The first low-refractive-index layer has a refractive index lower than that of the first substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.