Light-emitting device, light-emitting substrate and method for manufacturing the same, and light-emitting apparatus
US12057532B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2020 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Feb 23, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/0363
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A light-emitting device includes: a light-emitting element; a light conversion layer disposed on a light exit side of the light-emitting element and including a first portion and a second portion located on a side of the first portion in a first direction; a first material layer disposed between the light-emitting element and the light conversion layer and configured such that light emitted by the light-emitting element is incident into the light conversion layer; and a second material layer on a side of the first material layer in the first direction, a third material layer on a side face of the light conversion layer, and a fourth material layer on a side of the light conversion layer away from the light-emitting element, which are configured such that light unconverted by the light conversion layer is reflected on surfaces of a structure formed by the second, third and fourth material layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.