Curable composition including quantum dot, resin layer using the same and display device including the resin layer

Patent metadata

Field	Value
Publication number	US-11773318-B2
Application number	US-202016742861-A
Country	US
Kind code	B2
Filing date	Jan 14, 2020
Priority date	Apr 24, 2019
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A curable composition includes (A) a quantum dot; (B) a polymerizable compound; (C) a compound represented by Chemical Formula 1; and (D) a polymerization initiator. A resin layer manufactured utilizing the curable composition, and a display device including the resin layer are also provided.In Chemical Formula, each substituent is the same as defined in the detailed description.

First claim

What is claimed is:

1. A curable composition comprising:
a quantum dot;
a polymerizable compound;
a compound represented by Chemical Formula 1; and
a polymerization initiator:

wherein, in Chemical Formula 1,
R 1 to R 3 are each independently a hydrogen atom, a substituted or unsubstituted C1 to C20 alkyl group, or a substituted or unsubstituted C6 to C20 aryl group, and
at least one of R 1 to R 3 is a substituted or unsubstituted C1 to C20 alkyl group,
wherein the compound represented by Chemical Formula 1 is about 10 wt % to about 80 wt % based on a total weight of the curable composition, and
the curable composition does not contain any solvent.

2. The curable composition of claim 1 , wherein at least one of R 1 to R 3 is a hydrogen atom.

3. The curable composition of claim 1 , wherein the polymerizable compound is a polymerizable monomer having a carbon-carbon double bond at a terminal end of the polymerizable monomer.

4. The curable composition of claim 3 , wherein the polymerizable compound is a polymerizable monomer having at least one selected from a functional group represented by Chemical Formula 2-1 and a functional group represented by Chemical Formula 2-2 at the terminal end:

wherein, in Chemical Formula 2-1 and Chemical Formula 2-2,
L 1 is a substituted or unsubstituted C1 to C20 alkylene group, and
R 4 is a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group.

5. The curable composition of claim 1 , wherein the quantum dot is to absorb light in about 360 nm to about 780 nm and emit fluorescence in a wavelength of about 500 nm to about 700 nm.

6. The curable composition of claim 5 , wherein the quantum dot comprises a green quantum dot and/or a red quantum dot.

7. The curable composition of claim 1 , wherein the curable composition further comprises a light diffusing agent.

8. The curable composition of claim 7 , wherein the light diffusing agent comprises barium sulfate, calcium carbonate, titanium dioxide, zirconia, or a combination thereof.

9. The curable composition of claim 1 , wherein the curable composition further comprises malonic acid; 3-amino-1,2-propanediol; a silane-based coupling agent; a leveling agent; a fluorine-based surfactant; or a combination thereof.

10. A resin layer comprising the curable composition of claim 1 .

11. A display device comprising the resin layer of claim 10 .

12. The curable composition of claim 1 , wherein at least one selected from R 1 to R 3 is a substituted or unsubstituted C1 to C20 alkyl group and at least one selected from a remaining R 1 to R 3 is a hydrogen atom.

13. The curable composition of claim 1 , wherein the quantum dot is about 1 wt % to about 40 wt % in amount based on a total weight of the curable composition.

14. The curable composition of claim 1 , wherein the compound represented by Chemical Formula 1 is about 1 wt% to about 40 wt% based on a total weight of the curable composition.

15. A method of manufacturing a cured layer, the method comprising:
applying the curable composition of claim 1 onto a substrate by an ink-jet method to form a pattern; and
curing the pattern.

16. A method of manufacturing a cured layer, the method comprising:
applying the curable composition of claim 1 onto a substrate by an ink-jet method to form a pattern;
developing the pattern; and
heat-treating the pattern.

17. The curable composition of claim 1 , wherein the curable composition further comprises a binder resin.

18. The curable composition of claim 17 , wherein the binder resin comprises an acryl-based binder resin, a cardo-based binder resin, or a combination thereof.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Youn Jinsuop
• Ryu Youn Je
• LEE Bumjin
• Jeong Jiyoung
• Choi Jong Kyu

Classifications

• H10K50/115

  comprising active inorganic nanostructures, e.g. luminescent quantum dots · CPC title

• C09K11/025 Primary

  non-luminescent particle coatings or suspension media · CPC title

• B41M5/0023

  Digital printing methods characterised by the inks used (inks per se C09D11/00) · CPC title

• C09K11/703

  with zinc or cadmium · CPC title

• C08K5/50 Primary

  Phosphorus bound to carbon only · CPC title