US 11,685,154 B2 · Inkjet printing device, dipole aligning method, and display device manufacturing method

Abstract

An inkjet printing device includes a stage part including a stage, an inkjet head part including at least one inkjet head that disposes an ink on the stage, the ink including dipoles and a solvent having the dipoles, a heat treatment device that removes the solvent, a first sensing part that measures a position of the ink disposed on the stage, a second sensing part that measures a position of the inkjet head, and a third sensing part that measures a position of each of the dipoles disposed on the stage. A dipole aligning method includes disposing an ink on a substrate, the ink including dipoles and a solvent having the dipoles, generating an electric field on the substrate and disposing the dipoles on the substrate by the electric field, removing the solvent, and measuring a position of each of the dipoles disposed on the substrate.

Claims20

Dependent claims

An inkjet printing device comprising:

a stage part including a stage;
an inkjet head part including at least one inkjet head that disposes an ink on the stage, the ink including dipoles and a solvent in which the dipoles are dispersed;
a heat treatment device that removes the solvent disposed on the stage;
a first sensing part that measures a position of the ink disposed on the stage;
a second sensing part that measures a position of the inkjet head;
and
a third sensing part that measures a position of each of the dipoles disposed on the stage.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/420,438Filed 13 Mar 2019

Priority

KR 10-2019-00002032 Jan 2019

Published

US 2022/0080725 A117 Mar 2022

Granted

27 Jun 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

B41J 2/04558
Control methods or devices therefor, e.g. driver circuits, control circuits: detecting presence or properties of a dot on paper
H10H 20/01
Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]: manufacture or treatment
B41J 2/0456
Control methods or devices therefor, e.g. driver circuits, control circuits: detecting drop size, volume or weight
B41J 2/04586
Control methods or devices therefor, e.g. driver circuits, control circuits: controlling heads of a type not covered by groups B41J2/04575 -…

Inkjet printing device, dipole aligning method, and display device manufacturing method

Life of this patent

Inkjet printing device, dipole aligning method, and display device manufacturing method

Life of this patent

Abstract

Claims20