Organic electroluminescent device having improved durability and producing method thereof
US5457357A · kind A · utility
14Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 1993 |
| Grant date | Oct 10, 1995 |
| Priority date | — |
| Expiry date | May 4, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B33/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electroluminescent (EL) device is disclosed which has a pair of electrodes, an organic film therebetween including at least organic emitting material, and a vacuum evaporated metal film extending from the electrodes on to the outer surface of the organic film. The metal film protects at least an area on the outer surface of the organic film against air. The area is part of the border between the exposed area of the organic film and one of the electrodes, the part of the border corresponding to the crossing region of the electrodes and its vicinity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.