Curable composition, cured film produced using same, and color filter comprising same

Patent metadata

Field	Value
Publication number	US-12365833-B2
Application number	US-202118011485-A
Country	US
Kind code	B2
Filing date	Aug 20, 2021
Priority date	Sep 16, 2020
Publication date	Jul 22, 2025
Grant date	Jul 22, 2025

Abstract

Disclosed are a curable composition, a cured layer manufactured using the curable composition, and a color filter including the cured layer. The curable composition includes a quantum dot and a polymerizable compound, wherein the polymerizable compound includes a first polymerizable compound serving as a hydrogen bond donor and a second polymerizable compound serving as a hydrogen bond acceptor, and the first polymerizable compound and second polymerizable compound each independently include a (meth)acrylate group at at least one terminal end.

First claim

What is claimed is:

1. A curable composition, comprising
a quantum dot and a polymerizable compound,
wherein the polymerizable compound comprises a first polymerizable compound serving as a hydrogen bond donor and a second polymerizable compound serving as a hydrogen bond acceptor, and
the first polymerizable compound and second polymerizable compound each independently comprises a (meth)acrylate group at at least one terminal end, and
wherein the second polymerizable compound is represented by Chemical Formula 2:

wherein, in Chemical Formula 2,
R c and R d are each independently a hydrogen atom or a substituted or unsubstituted C1 to C10 alkyl group,
L c and L d are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, or a substituted or unsubstituted C6 to C20 arylene group, and
Y is a sulfur atom, *—C(═O)—*, a C1 to C10 alkylene group substituted with a fluorine atom or *—NR e (R e is a C1 to C10 alkyl group or a C6 to C20 aryl group)-*.

2. The curable composition of claim 1 , wherein the first polymerizable compound is represented by Chemical Formula 1:

wherein, in Chemical Formula 1,
R a and R b are each independently a hydrogen atom or a substituted or unsubstituted C1 to C10 alkyl group,
L a and L b are each independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, or a substituted or unsubstituted C6 to C20 arylene group, and
X is a C1 to C10 alkylene group substituted with a hydroxyl group, a C1 to C10 alkylene group substituted with an amino group, or *—NH—*.

3. The curable composition of claim 1 , wherein the first polymerizable compound has a viscosity greater than 6.2 cps and a vapor pressure less than 1×10 −3 torr at 25° C.

4. The curable composition of claim 1 , wherein the first polymerizable compound represented by any one of Chemical Formula 1-1 to Chemical Formula 1-3:

5. The curable composition of claim 1 , wherein the second polymerizable compound has a viscosity of less than or equal to 6.2 cps and a vapor pressure of greater than or equal to 1×10 −3 torr at 25° C.

6. The curable composition of claim 1 , wherein the second polymerizable compound is represented by any one of Chemical Formula 2-2 to Chemical Formula 2-5:

7. The curable composition of claim 1 , wherein the curable composition is a solvent-free curable composition.

8. The curable composition of claim 7 , wherein
the solvent-free curable composition comprises
5 wt % to 60 wt % of the quantum dot; and
40 wt % to 95 wt % of the polymerizable compound
based on the total amount of the solvent-free curable composition.

9. The curable composition of claim 1 , wherein the curable composition further comprises a polymerization initiator, a light diffusing agent, a binder resin, or a combination thereof.

10. The curable composition of claim 9 , wherein the light diffusing agent comprises barium sulfate, calcium carbonate, titanium dioxide, zirconia, or a combination thereof.

11. The curable composition of claim 1 , wherein the curable composition further comprises a solvent.

12. The curable composition of claim 11 , wherein the curable composition comprises 1 wt % to 40 wt % of the quantum dot; 1 wt % to 20 wt % of the polymerizable compound; and 40 wt % to 80 wt % of the solvent based on the total amount of the curable composition.

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

14. A cured layer manufactured using the curable composition of claim 1 .

15. A color filter comprising the cured layer of claim 14 .

Assignees

• Samsung Sdi Co Ltd

Inventors

• Kim Jonggi
• Kang Yonghee
• Park Onyou
• LEE Bumjin

Classifications

• C09K11/883

  with zinc or cadmium · CPC title

• C09K11/70

  containing phosphorus · CPC title

• C09K11/565 Primary

  with zinc cadmium · CPC title

• C09D11/32

  characterised by colouring agents · CPC title

• C09D11/107

  from unsaturated acids or derivatives thereof · CPC title