Organic electroluminescent materials and devices
US9324949B2 · kind B2 · utility
3Cited by
31References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 16, 2013 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Apr 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Luminescent materials including donor-acceptor compounds with a high triplet energy heteropolyaromatic system, namely, dibenzofuran, dibenzothiophene and dibenzoselenophene with one or multiple nitrogens in the ring as the electron acceptor for use as emitters in organic light emitting diodes is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.