Organic electroluminescent element
US11723263B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 20, 2017 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Mar 20, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/171
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
With a light-emission-layer material comprising: a novel polycyclic aromatic compound (1) or a multimer thereof in which a plurality of aromatic rings are linked by a boron atom and a nitrogen atom; and a specific anthracene-based compound (3) that achieves optimum light-emission characteristics in combination with said polycyclic aromatic compound or a multimer thereof, it is possible to provide an organic EL element having optimum light-emission characteristics.Ring A to ring C are an aryl ring or the like, Y1 represents B, X1 and X2 represent N—R, R of the N—R is an aryl or the like, and Ar3 and Ar4 are a hydrogen atom, a phenyl, a group represented by formula (4), or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.