Inorganic light emitting diode and inorganic light emitting device including the same
US11495769B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2020 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Apr 29, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/87
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present disclosure relates to an inorganic light emitting diode (LED) in which an emitting material layer (EML) includes inorganic luminescent particles and a cyclic boronic acid mixed with the inorganic luminescent particles and an inorganic light emitting device including the inorganic LED. The cyclic boronic acid in the EML allows surface defects on the inorganic luminescent particle to be minimized, and stabilizes the particles. As excitons by recombining holes and electrons in the stabilized luminescent particles become stabilized, the particles show improved exciton generation efficiency. The cyclic boronic acid enables the inorganic LED and the inorganic light emitting device to achieve lower driving voltages and improved luminous efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.