Organic light emitting device containing a light emitting layer an anthracene derivative, and an organic material layer containing a compound including as sustituents a cyano group and a nitrogen-containing heteroring
US11968892B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Sep 20, 2019 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Jul 3, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/171
Abstract
Provided is an organic light emitting device comprising: an anode; a cathode; a light emitting layer provided between the anode and the cathode; and an organic material layer provided between the cathode and the light emitting layer, wherein the light emitting layer comprises a compound of Chemical Formula 1, and the organic material layer provided between the cathode and the light emitting layer contains a compound of Chemical Formula 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.