Non-solvent type curable composition, cured layer using the same, color filter including the cured layer, display device including the cured layer and manufacturing method of the cured layer

Patent metadata

Field	Value
Publication number	US-11866624-B2
Application number	US-202016742857-A
Country	US
Kind code	B2
Filing date	Jan 14, 2020
Priority date	Feb 1, 2019
Publication date	Jan 9, 2024
Grant date	Jan 9, 2024

Abstract

A non-solvent curable composition including a quantum dot and a polymerizable monomer having a carbon-carbon double bond at the terminal end and having a vapor pressure of about 1×10 −5 mmHg to about 1×10 −4 mmHg, a cured layer manufactured utilizing the non-solvent curable composition, a color filter including the cured layer, a display device including the color filter, and a method of manufacturing the cured layer are disclosed.

First claim

What is claimed is:

1. A non-solvent curable composition comprising
a quantum dot, and
a polymerizable monomer having a carbon-carbon double bond at a terminal end of the polymerizable monomer, the polymerizable monomer having a vapor pressure of about 1×10 −5 mmHg to about 1×10 −4 mmHg.

2. 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.

3. The non-solvent curable composition of claim 1 , 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.

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 19 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 1 , wherein the quantum dot comprises a red quantum dot and/or a green quantum dot.

19. The non-solvent curable composition of claim 2 , wherein the quantum dot is about 1 wt % to about 40 wt % in amount based on the total weight of the non-solvent curable composition.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Choi Mi Jeong
• Kang Yonghee
• Kim Dongjun
• Kim Misun
• Kim Jonggi
• Park Minjee
• LEE Bumjin
• Yim Jihyeon

Classifications

• C09K11/025 Primary

  non-luminescent particle coatings or suspension media · CPC title

• C08F220/18

  with acrylic or methacrylic acids · CPC title

• G02F1/017 Primary

  Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells · CPC title

• G02F1/133514

  Colour filters · CPC title

• B82Y20/00

  Nanooptics, e.g. quantum optics or photonic crystals · CPC title