Organic EL multi-color light-emitting device
US10276637B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 9, 2012 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Nov 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/27
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An organic EL multi-color emitting device including a substrate, and a first light-emitting element and a second light-emitting element arranged on the surface of the substrate; the first light-emitting element including, between an anode and a cathode, a first organic layer, a second organic layer and a third organic layer in this sequence in a direction perpendicular to the surface of the substrate; the second light-emitting element including, between an anode and a cathode, a second organic layer and a third organic layer in this sequence in a direction perpendicular to the surface of the substrate; the first organic layer including a first light-emitting dopant; the third organic layer including a second light-emitting dopant; the second organic layer including any of (A) a compound including an arylamine site, and a furan site or a thiophene site, (B) a compound including an arylamine site and a site comprising a nitrogen-containing six-membered ring structure, (C) a compound including a carbazole site, and a furan site or a thiophene site, and (D) a compound including a carbazole site and a site including a nitrogen-containing six-membered ring structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.