Light-emitting module and planar light source
US11674666B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2022 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Jun 10, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133605
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-emitting module includes: a light source; a light guide plate including an upper surface and a lower surface, the lower surface being at a side opposite to the upper surface, the light guide plate being configured to guide light from the light source; a wavelength conversion sheet located at an upper surface side of the light guide plate; a first light-reflective member located at a lower surface side of the light guide plate, the first light-reflective member including: a first resin member, and a first reflector, where a refractive index of the first reflector is lower than a refractive index of the first resin member; and a second light-reflective member located at a lower surface side of the first light-reflective member, wherein the second light-reflective member includes: a second resin member, and a second reflector, where a refractive index of the second reflector is higher than a refractive index of the second resin member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.