Light-emitting device
US6692845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2001 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | May 10, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
Abstract
The present invention provides a technique for performing film-forming of a cathode comprising a metallic with a good adhesion, as well as a light-emitting device producing a good image to be displayed. An EL element is fabricated to have a structure in which an electron transport layer comprising a low molecular weight film is provided on a luminescent layer (104) comprising a polymer film and a cathode (106) comprising a metallic film is provided on the resultant electron transport layer. With such structure, occurrence of delamination or a dark spot derived from inferior adhesion of the cathode (106) can be prevented to obtain the light-emitting device producing a good image quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.