Compound for organic electroluminescent device and organic electroluminescent device
US8008657B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2008 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Jun 10, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/626
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed are an organic electroluminescent device (organic EL device) which is improved in luminous efficiency, fully secured of driving stability, and of simple constitution and a compound useful for the fabrication of said organic EL device. The compound for the organic EL device has an indolocarbazole structure or a structure similar thereto in the molecule wherein an aromatic group is bonded to the nitrogen atom in the indolocarbazole. The organic EL device has a light-emitting layer disposed between an anode and a cathode piled one upon another on a substrate and said light-emitting layer comprises a phosphorescent dopant and the aforementioned compound for an organic electroluminescent device as a host material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.