Organic electroluminescent device with electron injecting electrode containing ALLi alloy
US6359384B1 · kind B1 · utility
16Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1998 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Jul 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/82
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides an organic EL device comprising a hole injecting electrode, and at least one organic layer disposed between the electrodes, wherein the electron injecting electrode is comprised of an AlLi alloy containing 0.4-14 at % of lithium deposited by a sputtering process. This improves the film formability and adhesion at the interface between the electron injecting electrode and the organic layer, realizing an organic EL device featuring a high luminance, high efficiency, long lifetime, and high display quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.