Organic light emitting device
US10818848B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Apr 4, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | May 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/90
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides an organic light emitting device comprising at least one light emitting layer which comprises a first host compound and a second host compound, and the organic light emitting device has improved driving voltage, efficiency and lifetime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.