Oleds containing thermally stable glassy organic hole transporting materials
US6333521A · kind A · utility
22Cited by
14References
8Claims
0Family size
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Inventors
Key dates
| Filing date | Jul 5, 2000 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Jul 5, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to organic light emitting devices comprising a heterostructure for producing electroluminescence having a hole transporting layer with a glass structure. The hole transporting layer comprises a compound having a symmetric molecular structure. The end groups of the symmetric molecule are hole transporting amine moieties having an unsaturated linkage between two arenes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.