Electroluminescence device
US4945009A · kind A · utility
26Cited by
10References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1988 |
| Grant date | Jul 31, 1990 |
| Priority date | — |
| Expiry date | Mar 11, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an electroluminescence element including light emitting layers emitting light by applying AC voltages thereto the light emitting layer consists of a light emitting layer emitting red light and a light emitting layer emitting bluish green light and a blue filter transmitting blue light and a green filter transmitting green light are disposed on the light emitting surface side of the bluish green light emitting layer. In this way it is possible to take out red, blue and green lights at an approximately equal brightness level and to realize full color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.