Light emitting device having dopants in a light emitting layer
US7910227B2 · kind B2 · utility
11Cited by
13References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2008 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Feb 14, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting device having an anode and a cathode provided on a substrate, and an organic light emitting layer between the anode and the cathode, where the organic light emitting layer includes a light emitting material and first and second dopants for improving the dispersability thereof. As the first dopant, there is employed a phosphorescent dopant. The amount of the second dopant is greater than the amount of the first dopant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.