Quantum dot ink
US10311994B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2015 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Feb 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A quantum dot ink, a manufacturing method thereof and a quantum dot light emitting diode device are provided. The quantum dot ink includes a non-polar organic solvent, a surface tension modifier and a hydrophobic quantum dot, the quantum dot ink further includes a carrier transport material, wherein phase separation is present between the hydrophobic quantum dot and the carrier transport material. After completing ink-jet printing the quantum dot ink, phase separation occurs between the hydrophobic quantum dot and the carrier transport material. Thus, the two-layer structure of a hydrophobic quantum dot layer and a carrier transport material layer is formed through one process. Not only a quantum dot light emitting device is manufactured by the method of ink-jet printing, but also the operation is simplified, and the manufacturing cost of the quantum dot light emitting device is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.