Organic electroluminescent device
US9153790B2 · kind B2 · utility
38Cited by
12References
14Claims
0Family size
Assignee
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Key dates
| Filing date | May 27, 2010 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Jun 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An organic electroluminescence device including an anode, an emitting layer, a blocking layer, an electron-injecting layer and a cathode in sequential order; wherein the emitting layer contains a host and a dopant which gives fluorescent emission of which the main peak wavelength is 550 nm or less; the affinity Ad of the dopant is smaller than the affinity Ah of the host; the triplet energy ETd of the dopant is larger than the triplet energy ETh of the host; the triplet energy ETb of the blocking layer is larger than ETh; and the blocking layer includes an aromatic hydrocarbon compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.