Electroluminescent efficiency
US7709100B2 · kind B2 · utility
10Cited by
23References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2004 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Jun 26, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An organic light emitting device is provided. The device has an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer further includes a molecule of Formula I (shown below) wherein an alkyl substituent at position R′5, which is an alkyl substituent, results in high efficiency and operational stability in the organic light emitting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.