Organic light-emitting device comprising emission layer satisfying specific singlet excitation energy level conditions
US11552258B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Jun 17, 2020 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Mar 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/90
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is an organic light-emitting device including an emission layer that includes a first compound satisfying Conditions 1 to 4 below: ΔEST>ΔEST2+ΔE′TT Condition 1:0 eV<ΔEST2+ΔE′TT≤1.0 eV Condition 2:0 eV<ΔE′TT≤0.15 eV Condition 3:ΔEST2>0 eV. Condition 4:
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