Bipolar electroluminescent device
US5858561A · kind A · utility
55Cited by
8References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1995 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Mar 2, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Light emitting bipolar devices consist of an electroluminescent organic light emitting material sandwiched between two layers of insulating material each of which is in contact with an electrode. The devices operate with AC voltage at voltages of less than twenty four volts and in some instances at less than five volts. Under AC driving, the device produces modulated light output that can be frequency or amplitude modulated. Under DC driving, the device operates in both forward and reverse bias.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.