Granted Patent B2

US 12,331,234 · App. 16/742,855 · Granted Jun 17, 2025

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

Assignee: Samsung SDI Co., Ltd.

C09K11/02C08F2/40C08F292/00G02B5/23G03F7/2018B82Y20/00B82Y30/00C09D11/38G02B2207/101

Abstract

Claims (62)

1. A quantum dot surface-modified with one or more compounds represented by Chemical Formula 1 to Chemical Formula 6 and Chemical Formula 8 to Chemical Formula 14:

wherein, in Chemical Formula 1 to Chemical Formula 6,

R 1 to R 7 are each independently a substituted or unsubstituted C1 to C10 alkyl group or a substituted or unsubstituted C6 to C20 aryl group,

L 1 and L 5 are each independently a substituted or unsubstituted C3 to C10 alkylene group,

L 2 to L 4 and L 7 to L 16 are each independently a substituted or unsubstituted C1 to C10 alkylene group,

L 6 is a substituted or unsubstituted C1 or C3 to C10 alkylene group,

n1 is an integer of 1 to 10, and

n2 to n7 are each independently an integer of 0 to 10,

wherein, in Chemical Formula 8 to Chemical Formula 9,

R 9 in Chemical Formula 9 is a substituted or unsubstituted C1 to C10 alkyl group,

L 19 to L 23 are each independently a substituted or unsubstituted C1 to C10 alkylene group, and

n9 to n10 are each independently an integer of 0 to 10,

wherein, in Chemical Formula 10 to Chemical Formula 13,

R 10 in Chemical Formula 10 is a substituted or unsubstituted C2 to C10 alkyl group,

R 11 to R 15 in Chemical Formula 11 to Chemical Formula 13 are each independently a hydrogen atom or a substituted or unsubstituted C1 to C10 alkyl group,

L 24 to L 29 are each independently a substituted or unsubstituted C1 to C10 alkylene group, and

n11 to n16 are each independently an integer of 0 to 10,

wherein, in Chemical Formula 14,

R 16 to R 18 are each independently a substituted or unsubstituted C1 to C10 alkyl group,

L 30 to L 32 are each independently a substituted or unsubstituted C1 to C10 alkylene group, and

n17 to n19 are each independently an integer of 0 to 10.

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

3. A non-solvent curable composition comprising

the quantum dot of claim 1 , and

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

wherein the polymerizable monomer is about 40 wt % to about 80 wt % in amount based on a total weight of the non-solvent curable composition, and

the non-solvent curable composition does not contain any solvent.

4. The non-solvent curable composition of claim 3 , wherein the polymerizable monomer has a molecular weight of about 220 g/mol to about 1,000 g/mol.

5. The non-solvent curable composition of claim 3 , wherein the polymerizable monomer is represented by Chemical Formula 15:

wherein, in Chemical Formula 15,

R 19 and R 20 are each independently a hydrogen atom or a substituted or unsubstituted C1 to C10 alkyl group,

L 33 and L 35 are each independently a substituted or unsubstituted C1 to C10 alkylene group, and

L 34 is a substituted or unsubstituted C1 to C10 alkylene group or an ether group.

6. The non-solvent curable composition of claim 3 , wherein the non-solvent curable composition further comprises a polymerization initiator, a light diffusing agent, or a combination thereof.

7. The non-solvent curable composition of claim 6 , wherein the light diffusing agent comprises barium sulfate, calcium carbonate, titanium dioxide, zirconia, or a combination thereof.

8. The non-solvent curable composition of claim 6 , wherein the non-solvent 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.

9. A cured layer manufactured utilizing the composition of claim 3 .

10. A color filter comprising the cured layer of claim 9 .

11. A display device comprising the color filter of claim 10 .

12. A method of manufacturing a cured layer, the method comprising:

applying the composition of claim 3 onto a substrate by an ink-jet method to form a pattern; and

curing the pattern.

13. A method of manufacturing a cured layer, the method comprising:

applying the composition of claim 3 onto a substrate by an ink-jet method to form a pattern;

developing the pattern; and

heat-treating the pattern.

14. A solvent-based curable composition comprising

the quantum dot of claim 1 ;

a binder resin; and

a solvent.

15. The solvent-based curable composition of claim 14 , wherein the solvent-based curable composition further comprises a polymerizable monomer, a polymerization initiator, a light diffusing agent, or a combination thereof.

16. The solvent-based curable composition of claim 14 , wherein the solvent-based curable composition is a photosensitive resin composition.

17. A cured layer manufactured utilizing the composition of claim 14 .

18. A color filter comprising the cured layer of claim 17 .

19. A display device comprising the color filter of claim 18 .

20. A method of manufacturing a cured layer, the method comprising:

applying the composition of claim 14 onto a substrate by an ink-jet method to form a pattern; and

curing the pattern.

21. A method of manufacturing a cured layer, the method comprising:

applying the composition of claim 14 onto a substrate by an ink-jet method to form a pattern;

developing the pattern; and

heat-treating the pattern.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (250)

Cited By (1)

US 12,650,643