Electroluminescent materials and devices
US12426502B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2021 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Feb 8, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided are an electroluminescent material and device. The electroluminescent material is a compound having an indole- and pyrrole-fused azamacrocycle structure segment which is connected to quinazoline having a substitution on a specific ring, quinoxaline having a substitution on a specific ring, or a similar structure thereof, and can be used as the host material in the electroluminescent device. These novel compounds can obtain a lower driving voltage, effectively improve device efficiency, greatly prolong device lifetime, and provide better device performance. Further provided are an electroluminescent device and a compound formulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.