Small molecule/polymer organic light emitting device capable of white light emission
US7948163B2 · kind B2 · utility
4Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2007 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Jun 7, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to a method for producing white light. The method includes applying a voltage to an organic light emitting device including a light emissive layer directly adjacent to a layer comprising at least one small molecule material capable of hole blocking and electron transport, the light emissive layer including at least one blue light emissive polymer, where the at least one small molecule material and the at least one blue light emissive polymer form a light emissive exciplex at or near an interface of the light emissive layer and the layer including the at least one small molecule material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.