Curable composition, cured film manufactured using composition, color filter including cured film, and display device including color filter
Disclosed are a curable composition, a cured layer manufactured using the curable composition, a color filter including the cured layer, and a display device including the color filter. The curable composition includes (A) quantum dots; and (B) a curable monomer having a viscosity of less than 6.2 cps and a vapor pressure of 1×10 −6 torr to 3×10 −3 torr.
1 . A curable composition, comprising:
(A) quantum dots; and
(B) a curable monomer represented by Chemical Formula 1:
wherein, in Chemical Formula 1,
R a is a substituted or unsubstituted C1 to C20 alkyl group, and
L a is a substituted or unsubstituted C3 to C6 cycloalkylene group or a linking group represented by Chemical Formula 2,
and
wherein, in Chemical Formula 2,
L b and L c are each independently a substituted or unsubstituted C1 to C8 alkylene group, and
n is an integer of 2 to 3,
the curable monomer having
a viscosity measured at 25° C. of less than 6.2 cps,
a vapor pressure of 1×10 −6 torr to 3×10 −3 torr, and
a film residue ratio of 88% to 95%.
2 . The curable composition of claim 1 , wherein the curable monomer has a viscosity measured at 25° C. of greater than or equal to 3 cps and less than 6.2 cps.
3 . The curable composition of claim 1 , wherein the curable monomer has an asymmetric structure.
4 . The curable composition of claim 1 , wherein, in Chemical Formula 2, L b and L c are each independently a substituted or unsubstituted C1 to C3 alkylene group.
5 . The curable composition of claim 1 , wherein
in Chemical Formula 1, L a is an unsubstituted C3 to C6 cycloalkylene group, or a linking group represented by Chemical Formula 2, and
in Chemical Formula 2, L b and L c are each independently an unsubstituted C1 to C6 alkylene group.
6 . The curable composition of claim 1 , wherein the curable monomer is represented by any one of Chemical Formula 1-4 to Chemical Formula 1-9:
7 . The curable composition of claim 1 , wherein the quantum dots are surface-modified with a ligand having a polar group.
8 . The curable composition of claim 7 , wherein the ligand having the polar group is represented by any one of Chemical Formula 3 to Chemical Formula 16:
wherein, in Chemical Formula 3 to Chemical Formula 8,
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 9 to Chemical Formula 11,
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 12 to Chemical Formula 15,
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 16,
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.
9 . The curable composition of claim 1 , wherein the curable composition is a solvent-free curable composition.
10 . The curable composition of claim 9 , wherein
the solvent-free curable composition comprises, based on the total amount of the solvent-free curable composition,
5 wt % to 60 wt % of the quantum dots; and
40 wt % to 95 wt % of the curable monomer.
11 . The curable composition of claim 1 , wherein the curable composition further comprises a polymerization initiator, a light diffusing agent, a polymerization inhibitor, or a combination thereof.
12 . The curable composition of claim 11 , wherein the light diffusing agent comprises barium sulfate, calcium carbonate, titanium dioxide, zirconia, or a combination thereof.
13 . The curable composition of claim 1 , wherein the curable composition further comprises a solvent.
14 . The curable composition of claim 13 , wherein the curable composition comprises 1 wt % to 40 wt % of the quantum dots; 1 wt % to 20 wt % of the curable monomer; and 40 wt % to 80 wt % of the solvent based on the total weight of the curable composition.
15 . The curable composition of claim 1 , wherein the curable composition further comprises malonic acid; 3-amino-1,2-propanediol; a silane-based coupling agent; a leveling agent; a fluorine-based surfactant; or a combination thereof.
16 . A cured layer manufactured by using the curable composition of claim 1 .
17 . A color filter comprising the cured layer of claim 16 .
18 . A display device comprising the color filter of claim 17 .
19 . The curable composition of claim 1 , wherein the curable monomer is an asymmetric di-functional monomer having one acrylate group and one methacrylate group, and wherein the monomer has a molecular weight of less than 220 g/mol and a viscosity of less than 6.2 cP at 25° C.
20 . The curable composition of claim 1 , wherein the quantum dots have a maximum fluorescence emission wavelength in the range of 500 nm to 680 nm and a full width at half maximum (FWHM) of 20 nm to 50 nm.