US 12,720,943 B2 · Quantum dot light-emitting device and manufacturing method related to crosslinking reaction therefor, a display apparatus

Abstract

Disclosed are a quantum dot light-emitting device and a manufacturing method therefor, and a display apparatus, including: coating a substrate with a quantum dot solution, wherein each quantum dot includes a quantum dot body and a first crosslinkable ligand connected to the surface of the quantum dot body, and when the quantum dots are in a solution state, the first crosslinkable ligand is in a decrosslinking state; carrying out cross-linking reaction on the first crosslinkable ligand of the quantum dots at a first temperature; using laser to irradiate a quantum dot region to be removed after the crosslinking reaction, the quantum dots in said region being decrosslinked at a second temperature generated by laser irradiation, and a difference between the second temperature and the first temperature being greater than a preset value; and removing the quantum dots in said region to form a patterned quantum dot layer.

Claims19

Dependent claims

A manufacturing method for a quantum dot light-emitting device, comprising:

coating a substrate with a quantum dot solution;
wherein each quantum dot comprises a quantum dot body and a first crosslinkable ligand connected to a surface of the quantum dot body;
and in response to the quantum dots being in a solution state, the first crosslinkable ligands are in a decrosslinking state;
carrying out a crosslinking reaction on the first crosslinkable ligands of the quantum dots at a first temperature;
using laser to irradiate a quantum dot region to be removed after the crosslinking reaction, the quantum dots in the region to be removed being decrosslinked at a second temperature generated by laser irradiation;
and a difference between the second temperature and the first temperature being greater than a preset value;
and
removing the quantum dots in the region to be removed to form a patterned quantum dot layer.

5 more elements

A quantum dot light-emitting device, comprising a substrate and a patterned quantum dot layer located on the substrate, wherein each quantum dot of the quantum dot layer comprises a quantum dot body and a first crosslinkable ligand connected to the surface of the quantum dot body;

and the quantum dot layer is of a structure obtained after the first crosslinkable ligands are subjected to a crosslinking reaction at a first temperature
wherein the substrate comprises:
a base substrate, a first electrode located on the base substrate, and a carrier film layer located on the first electrode;
wherein the quantum dot layer is located on the carrier film layer, and second crosslinkable ligands are connected to a surface of the carrier film layer;
and
the quantum dot layer is of a structure obtained after the first crosslinkable ligands and the second crosslinkable ligands are subjected to a crosslinking reaction;
or, the quantum dot layer is of a structure obtained after a crosslinking reaction occurs between the first crosslinkable ligands and the second crosslinkable ligands, and a crosslinking reaction occurs between first crosslinkable ligands corresponding to adjacent quantum dots.

4 more elements

Dependencies are inferred from the claim text.

Quantum dot light-emitting device and manufacturing method related to crosslinking reaction therefor, a display apparatus

Life of this patent

Quantum dot light-emitting device and manufacturing method related to crosslinking reaction therefor, a display apparatus

Life of this patent

Abstract

Claims19