Granted Patent B2

US 12,351,750 · App. 17/595,497 · Granted Jul 8, 2025

Inventors: Yonghee Kang (Suwon-si, KR); Jonggi Kim (Suwon-si, KR); Jihyeon Yim (Suwon-si, KR); Dongjun Kim (Suwon-si, KR); Misun Kim (Suwon-si, KR); Minjee Park (Suwon-si, KR); Bumjin Lee (Suwon-si, KR); Injae Lee (Suwon-si, KR); Mi Jeong Choi (Suwon-si, KR)

Assignee: Samsung SDI Co., Ltd.

C09K11/025C08F122/1006C08K3/22C08K9/04G02B1/04B82Y20/00B82Y40/00C08K2003/2241C08K2201/011

Abstract

Claims (38)

1. A quantum dot surface-modified with a compound represented by Chemical Formula 1:

wherein, in Chemical Formula 1,

L is a divalent moiety derived from acid dianhydride,

L 1 and L 2 are independently a substituted or unsubstituted C1 to C20 alkylene group,

R 1 is a substituted or unsubstituted C1 to C20 alkyl group or a substituted or unsubstituted C6 to C20 aryl group, and

m is an integer of 1 to 20.

2. The quantum dot of claim 1 , wherein the L is a divalent moiety derived from a compound represented by one of Chemical Formula 2-1 to Chemical Formula 2-15:

3. The quantum dot of claim 1 , wherein the L is represented by one selected from the following:

4. The quantum dot of claim 1 , wherein Chemical Formula 1 is represented by one of Chemical Formula 1-1 to Chemical Formula 1-3:

and

wherein, in Chemical Formula 1-1 to Chemical Formula 1-3,

n is an integer of 1 to 20.

5. The quantum dot of claim 1 , wherein the quantum dot has a maximum fluorescence emission wavelength from 500 nm to 680 nm.

6. A solvent-free curable composition comprising

the quantum dot of claim 1 ; and

a polymerizable monomer having a carbon-carbon double bond at the terminal end.

7. The solvent-free curable composition of claim 6 , wherein the polymerizable monomer has a molecular weight of 220 to 1,000 g/mol.

8. The solvent-free curable composition of claim 6 , wherein the polymerizable monomer is represented by Chemical Formula 3:

and

wherein, in Chemical Formula 3,

R 2 and R 3 are independently a hydrogen atom or a substituted or unsubstituted C1 to C10 alkyl group,

L 7 and L 9 are independently a substituted or unsubstituted C1 to C10 alkylene group, and

L 8 is a substituted or unsubstituted C1 to C10 alkylene group, or an ether group (*—O—*).

9. The solvent-free curable composition of claim 6 , comprising

1 wt % to 60 wt % of the quantum dot, and

40 wt % to 99 wt % of the polymerizable monomer.

10. The solvent-free curable composition of claim 6 , further comprising a polymerization initiator, a light diffusing agent, or a combination thereof.

11. A solvent-type curable composition comprising

the quantum dot of claim 1 ;

a binder resin; and

a solvent.

12. The solvent-type curable composition of claim 11 , comprising

1 wt % to 40 wt % of the quantum dot;

1 wt % to 30 wt % of the binder resin; and

a balance amount of the solvent.

13. The solvent-type curable composition of claim 11 , further comprising a polymerizable monomer, a polymerization initiator, a light diffusing agent, or a combination thereof.

14. A cured layer produced from the solvent-free curable composition of claim 6 .

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

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (250)