Organic light-emitting device and apparatus including the same
US12089430B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2021 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Feb 11, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/90
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer located between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a host and a dopant, the host includes a first compound and a second compound, and the first compound, the second compound, and the dopant are different from one another. Two compounds in the host included in the emission layer may have different HOMO and LUMO energy levels and may form an exciplex, and a difference between a HOMO energy level and a LUMO energy level of the exciplex (ΔEexciplex) may be greater than a difference between a HOMO energy level and a LUMO energy level of the dopant (ΔEdopant).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.