Organic electroluminescent device
US6322910A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1999 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Jun 25, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/171
Abstract
An organic EL device comprises a substrate, a hole injecting electrode and an electron injecting electrode formed on the substrate and at least an organic layer taking part in light emitting function and located between these electrodes. Between the electron injecting electrode and the organic layer there is an inorganic insulating electron injecting layer comprising as a main component an oxide having an electron affinity of up to 3 eV with a stabilizing component added thereto. The organic EL device possesses the merits of both an organic material and an inorganic material, and has an extended life, an improved efficiency, a low driving voltage, and so is of great practical value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.