Electroluminescent device and apparatus
US6441551B1 · kind B1 · utility
29Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Jan 3, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B33/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides the EL device and apparatus each of which has a white appearance in the non-light-emitting state, and can emit white light with high luminance in the light-emitting state. When such an EL device or apparatus is used, the light-emitting surface provides a background with high whiteness both in the light-emitting and non-light-emitting state, and can highlight a light-transmitting printed layer formed on the light-emitting surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.