Compound, electron transport material, display panel and display apparatus
US12134615B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2021 |
| Grant date | Nov 5, 2024 |
| Priority date | — |
| Expiry date | Mar 30, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/19
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present disclosure provides a compound having a structure represented by Formula 1, where X1-X4 are each independently selected from a carbon atom or a nitrogen atom, and at least two of X1-X4 are each a nitrogen atom; R1-R4 are independently absent or selected from hydrogen, C1-C20 alkyl, C1-C20 alkoxy, C1-C20 alkylthio, C1-C20 alkylamino, C6-C30 aryl, or C2-C30 heteroaryl; m is 1 or 2; n and q are each independently selected from 0, 1, or 2, n+q≥1, and m+n+q=3; Ar is C6-C30 aryl. The molecular structure of the compound has a nitrogen-containing multidentate ligand suitable to form complexes with metal Yb or LiQ to form a metal organic complex having multidentate bondings. When applied to an OLED device, it can effectively lower the turn-on voltage and operating voltage, improve the efficiency, and prolong lifetime of the OLED device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.