Electroluminescent material and device
US12281082B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2021 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Jul 8, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed are an electroluminescent material and device. The compound is a compound formed by connecting an indole- and pyrrole-fused azamacrocycle to triazine or a similar structure thereof at a specific position and is used as the host material of the electroluminescent device. These novel compounds have significantly reduced evaporation temperature and better thermal stability, can effectively reduce energy consumption, which more facilitates the device manufacturing process, and in addition, can also effectively improve device efficiency and reduce device drive voltage, which can provide better device performance. Further disclosed are an electroluminescent device, a compound formulation, and a display assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.