Process for producing a thin film EL device
US6723192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Feb 26, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24926
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composite substrate in which the surface of the insulating layer is not influenced by the electrode layer and which requires neither a grinding process nor a sol-gel process, is easy to produce and can provide a thin-film EL device having a high display quality when used therein; a thin-film EL device using the substrate; and a production process for the device. The thin-film EL device is produced by forming a luminescent layer, other insulating layer and other electrode layer successively on a composite substrate comprising a substrate; an electrode layer embedded in the substrate in such a manner that the electrode layer and the substrate are in one plane; and an insulating layer formed on the surface of a composite comprising the substrate and the electrode layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.