Patent · US Active

Printing ink formulations, preparation methods and uses thereof

US11248138B2 · kind B2 · utility

1Cited by

31References

19Claims

0Family size

Assignee

GUANGZHOU CHINARAY OPTOELECTRONIC MATERIALS LTD. · CN

Inventors

Junyou Pan · Frankfurt am Main, DE
Xi Yang · Mason, US
Xiaolin Yan · Tangxia, CN

Key dates

Filing date	Nov 23, 2017
Grant date	Feb 15, 2022
Priority date	—
Expiry date	Nov 9, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH10K2101/10
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A printing ink formulation includes a functional material and a solvent being evaporable from the printing ink formulation to form a functional material thin film. The solvent is formed by mixing at least two organic solvents including a first solvent and a second solvent. The solvent system containing at least two solvents can effectively dissolve the functional material without the need of adding an additive, and can also effectively prevent the occurrence of a “coffee-ring effect”, and accordingly, the thin film containing a uniform thickness and a strong electron transmission capability can be obtained.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.