Organic electroluminescence element
US9437833B2 · kind B2 · utility
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2References
19Claims
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Key dates
| Filing date | Aug 10, 2012 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Apr 15, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An organic electroluminescent element includes a light-emitting layer between an anode and a cathode. The light-emitting layer contains a phosphorescent light-emitting organic metal complex and at least one host compound. The difference in relative dielectric constant between the host compound and the phosphorescent light-emitting organic metal complex is 0 to −0.5, and the difference in dipole moment between the host compound and the phosphorescent light-emitting organic metal complex is 0 to −5.5 debye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.