Organic light-emitting diode, organic light-emitting display including the same, and method of manufacturing the same
US11744093B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2022 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Apr 20, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/40
Abstract
An organic light-emitting diode includes: a first electrode, a light-emitting stack thereon including: a hole transport layer (HTL), a blue light-emitting layer including: a blue host material (BHM), and a blue fluorescent dopant (BFD) material, and an electron transport layer (ETL), and a second electrode on the light-emitting stack, wherein BFD LUMO>BHM, BFD HOMO>BHM, BFD singlet energy <BHM, HTL HOMO>BHM and BFD, HTL HOMO−BFD HOMO≤0.1 eV, the HTL material LUMO>the BHM, HTL LUMO−BHM LUMO>0.5 eV, HTL LUMO>BFD, ETL LUMO>BHM and BFD, a difference in LUMO between the ETL material and the BFD material ≤0.1 eV, and the HTL material, the ETL material, and the BHM have the following triplet energy relationships: T1,BH<T1,HTL and T1,BH<T1,ETL, 2.8<T1,HTL<3.0, and 2.6<T1,ETL<2.8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.