Inorganic light emitting diode and inorganic light emitting device including the same
US11502267B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Sep 18, 2020 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Jul 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An inorganic light emitting diode in which at least one energy control layer including an organometallic compound interacting with a hydroxyquinoline moiety is disposed between an emitting material layer and at least one charge transfer layer and an inorganic light emitting device including the diode are disclosed. An exciton recombination zone is formed at the central region in the EML, and inorganic luminescent particles have minimal surface defects by introducing the energy control layer. The inorganic light emitting diode and the inorganic light emitting device can improve their color purity and luminous efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.