Method for producing organic light-emitting element, organic display panel, organic light-emitting device, method for forming functional layer, ink, substrate, organic light-emitting element, organic display device, and inkjet device
US8980678B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2011 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Jan 19, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/09
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
To provide a method of efficiently manufacturing an organic light-emitting element with excellent light-emitting characteristics by application, the method includes: preparing ink and filling an inkjet device having an ink ejection nozzle with the ink; preparing a substrate having a base layer including a first electrode; and positioning the inkjet device above the substrate, and causing the inkjet device to eject a drop of the ink onto the base layer, wherein, in the preparation of the ink, a value Z denoting a reciprocal of the Ohnesorge number Oh determined by density ρ (g/m3), surface tension γ (mN·m), and viscosity η (mPa·s) of the ink and a diameter r (mm) of the ink ejection nozzle satisfies Formula 1, in the ejection of the drop of the ink, speed V (m/s) of the ejected drop satisfies Formula 2, and the value Z and the speed V (m/s) satisfy Formula 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.