Organic electroluminescence element and silicon compound
US7527878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2005 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Apr 3, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An organic electroluminescence element, which contains at least one organic layer that includes a luminescent layer between a pair of electrodes, wherein the organic layer contains at least one compound represented by formula (1):wherein R11 and R12 each independently represent an aryl or heteroaryl group; when R11 or R12 is a phenyl group, it has no nitrogen-containing heterocyclic group on R11 or R12 as a substituent; Ar11 and Ar12 each independently represent a group represented by formula (2):wherein Ar21 represents an arylene or heteroarylene group; R21, R22, R23, and R24 each independently represent a substituent or a hydrogen atom; L2 represents a substituted or unsubstituted o-arylene or vinylene group, —NR— (R represents a substituent), —O—, or —S—; and m is 0 or 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.