Manufacturing method for organic electroluminescence device, and electronic device therewith
US7252570B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2004 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Aug 26, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to the manufacturing method for an organic electroluminescence device comprising luminescent layers between an anode and a cathode, electron transport layer forming materials are introduced in the liquid phase process so as to form electron transport layers. First materials composed of prescribed elements, such as halides (e.g., LiF) or oxides of alkali metals, alkali earth metals, and rare earth metals, are introduced into openings of organic bank layers so as to form electron transport layers on blue-color luminescent layers realizing blue-color emission; and second materials composed of organic metallic complex (e.g., β-diketone complex), generally expressed in a chemical formula MAn using a center atom M (e.g. Ca) and a ligand A (e.g., acetylacetone (acac)), are introduced into openings of organic bank layers so as to form electron transport layers on red-color and green-color luminescent layers realizing red-color and green-color emission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.