Composition, film manufacturing method, as well as functional device and manufacturing method therefore
US6878312B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 29, 2000 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Mar 29, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/631
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition, which can be used in an ink jet printing method, can use either a non-polar or a weakly polar material as a functional material, prevents clogging at dispensing time, achieves stable dispensing, and prevents precipitation of content matter during dispensing and phase separation during film formation, a uniform, homogenous functional film formed using this composition and a manufacturing method therefor, as well as an organic EL device or other such display device and a manufacturing method therefor. A composition of the present invention consists of a functional material, and a solvent comprising at least one benzene derivative, which has one or more substituents, and these substituents have 3 or more carbon atoms in total. A functional film of the present invention is formed using the above-mentioned composition. A display device of the present invention comprises luminescent material layers formed using the above-mentioned composition between two electrodes. The above-mentioned display device is an organic EL device or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.