Granted Patent B2

US 12,312,521 · App. 18/516,818 · Granted May 27, 2025

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

Assignee: Samsung SDI Co., Ltd.

C09K11/025C08F220/18G02F1/017G02F1/133514B82Y20/00B82Y30/00B82Y40/00C09D11/38G02F1/01791G02F2202/023G02F2202/36

Abstract

Claims (59)

1. A non-solvent curable composition for ink-jet printing comprising:

a quantum dot, and

a polymerizable monomer having a vapor pressure of about 1×10 −5 mmHg to about 1×10 −4 mmHg at about 20° C. to about 25° C.,

wherein the polymerizable monomer is represented by Chemical Formula 15:

wherein, in Chemical Formula 15,

R′ and R″ are each independently a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group, and

L a is a substituted or unsubstituted C5 to C20 alkylene group.

2. The non-solvent curable composition of claim 1 , wherein

the polymerizable monomer is about 38 wt % to about 82 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.

3. The non-solvent curable composition of claim 1 , 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 1 , wherein the quantum dot is a quantum dot surface-modified with one or more of compounds represented by Chemical Formula 1 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 to L 16 are each independently a substituted or unsubstituted C1 to C10 alkylene group, and

n1 to n7 are each independently an integer of 0 to 10,

wherein, in Chemical Formula 7 to Chemical Formula 9,

R 8 and R 9 are each independently a substituted or unsubstituted C1 to C10 alkyl group,

L 17 to L 23 are each independently a substituted or unsubstituted C1 to C10 alkylene group, and

n8 to n10 are each independently an integer of 0 to 10,

wherein, in Chemical Formula 10 to Chemical Formula 13,

R 10 to R 15 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.

5. The non-solvent curable composition of claim 1 , wherein the quantum dot has a maximum fluorescence emission wavelength at about 500 nm to about 680 nm.

6. The non-solvent curable composition of claim 1 , 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 is barium sulfate, calcium carbonate, titanium dioxide, zirconia, or a combination thereof.

8. The non-solvent curable composition of claim 1 , 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. The non-solvent curable composition of claim 1 , wherein the non-solvent curable composition has a photo-cure rate of greater than or equal to about 90% after being applied on a substrate at a thickness of about 2 μm to about 20 μm and photocured.

10. The non-solvent curable composition of claim 1 , wherein the non-solvent curable composition has a film residue rate of greater than or equal to about 80% at 60 minutes after being applied on a substrate at a thickness of about 2 μm to about 20 μm.

11. A cured layer manufactured utilizing the non-solvent curable composition of claim 1 .

12. A color filter comprising the cured layer of claim 11 .

13. A display device comprising the color filter of claim 12 .

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

applying the non-solvent curable composition of claim 1 onto a substrate by an ink-jet method to form a pattern; and

curing the pattern.

15. The method of claim 14 , wherein the curing comprises photocuring and/or thermal curing.

16. The non-solvent 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 non-solvent curable composition.

17. The non-solvent curable composition of claim 1 , wherein the non-solvent curable composition does not contain any solvent.

18. The non-solvent curable composition of claim 2 , wherein the quantum dot is about 6 wt % to about 50 wt % in amount based on the total weight of the non-solvent curable composition.

19. The non-solvent curable composition of claim 3 , wherein the quantum dot is about 8 wt % to about 48 wt % in amount based on the total weight of the non-solvent curable composition.

20. A non-solvent curable composition for ink-jet printing comprising:

a quantum dot,

a polymerizable monomer having a vapor pressure of about 1×10 −5 mmHg to about 1×10 −4 mmHg at about 20° C. to about 25° C., and

a light diffusing agent,

wherein:

the quantum dot is about 6 wt % to about 50 wt % in amount based on a total weight of the non-solvent curable composition,

the polymerizable monomer is about 38 wt % to about 82 wt % in amount based on the total weight of the non-solvent curable composition, and

the light diffusing agent is about 1 wt % to about 20 wt % in amount based on the total weight of the non-solvent curable composition, and

the polymerizable monomer is represented by Chemical Formula 15:

wherein, in Chemical Formula 15,

R′ and R″ are each independently a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group, and

L a is a substituted or unsubstituted C5 to C20 alkylene group.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (253)