Organic light emitting devices
US6753098B2 · kind B2 · utility
19Cited by
30References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2001 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Jun 2, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electroluminescence (EL) device containing a number of layers, including two electrodes and positioned between the electrodes a mixed region, a hole transport region, and an electron transport region, wherein the mixed region contains, for example, biphenyl TPD, an electron transport compound and a luminescent compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.