Organic light emitting element
US9705089B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2015 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Feb 9, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is an organic light emitting element having stable performance in the air. The organic light emitting element includes: an anode; a cathode; and an emission layer placed between the anode and the cathode, in which: the organic light emitting element further includes a first organic compound layer placed between the cathode and the emission layer, and a second organic compound layer placed between the emission layer and the first organic compound layer, and contacted with the first organic compound layer; the first organic compound layer contains a first organic compound; the second organic compound layer contains a second organic compound; and the first organic compound includes a viologen compound represented by the following general formula [1] and the second organic compound includes an organic compound different from the viologen compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.