Organic electroluminescence device
US8638031B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2011 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Nov 16, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/103
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An organic electroluminescence device having two electrodes and a plurality of organic layers between the two electrodes, in which the organic layers include a light emitting layer that emits light when an electric field is applied between the two electrodes. The device further includes a plurality of metal fine particles, which generates a local plasmon by light emitted from the light emitting layer, inside of at least either one of the electrodes or adjacent to a side of the electrode facing the organic layers and inside of a conductive organic layer, and at least some of the plurality of metal fine particles are disposed adjacent to the light emitting layer. Here, as the metal fine particles, particles having a scattering cross section σS which is larger than an absorption cross section σA thereof with respect to light emitted from the light emitting layer are used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.