Electroluminescent devices
US5807627A · kind A · utility
175Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1997 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Apr 30, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electroluminescent device has at least two active semiconductive conjugated polymer light emitting layers arranged between a cathode and an anode. The layers are arranged so that at least part of at least two layers lie in an emission zone of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.