Photosensitive resin composition, photosensitive resin layer using same and color filter

1. A photosensitive resin composition, comprising

(A) a quantum dot;

(B) a binder resin including a structural unit represented by Chemical Formula 1;

(C) a photopolymerizable monomer;

(D) a photopolymerization initiator; and

(E) a solvent:

wherein, in Chemical Formula 1,

R 11 and R 12 are independently represented by Chemical Formula 2,

*-L 1 -L 2 -R 1   [Chemical Formula 2]

wherein, in Chemical Formula 2,

L 1 is a substituted or unsubstituted C1 to C10 alkylene group,

L 2 is an oxygen atom or a sulfur atom,

R 1 is “a C1 to C10 alkyl group substituted with a C1 to C10 alkylthio group” or “a C6 to C20 aryl group substituted with a C1 to C10 alkylthio group”,

R 13 and R 14 are independently a hydrogen atom, a halogen atom, or a substituted or unsubstituted C1 to C20 alkyl group, and

Z 1 is a single bond, O, CO, SO 2 , CR 17 R 18 , SiR 19 R 20 , or one of linking groups represented by Chemical Formula 1-1 to Chemical Formula 1-11, wherein, R 17 to R 20 are independently a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group,

wherein, in Chemical Formula 1-5,

R a is a hydrogen atom, an ethyl group, C 2 H 4 CI, C 2 H 4 OH, CH 2 CH═CH 2 , or a phenyl group,

Z 2 is an acid anhydride residual group, and

t1 and t2 are independently an integer ranging from 0 to 4.

2. The photosensitive resin composition of claim 1 , wherein the R 1 is “a C1 to C5 alkyl group substituted with a C1 to C5 alkylthio group” or “a C6 to C10 aryl group substituted with a C1 to C5 alkylthio group”.

3. The photosensitive resin composition of claim 1 , wherein the Z 2 is represented by one selected from Chemical Formula 3 to Chemical Formula 5:

wherein, in Chemical Formula 3,

L 3 is a single bond, an oxygen atom, a sulfur atom, *—C(═O)—*, or *—CR 2 R 3 —*, wherein R 2 and R 3 are independently a halogen atom-substituted or unsubstituted C1 to C10 alkyl group.

4. The photosensitive resin composition of claim 1 , wherein the binder resin has a weight average molecular weight of 2,000 g/mol to 20,000 g/mol.

5. The photosensitive resin composition of claim 1 , wherein the photosensitive resin composition further includes an acryl-based binder resin.

6. The photosensitive resin composition of claim 1 , wherein the photosensitive resin composition further includes 0.5 wt % to 10 wt % of (F) a scatterer based in a total amount of the photosensitive resin composition.

7. The photosensitive resin composition of claim 6 , wherein the scatterer includes barium sulfate, calcium carbonate, titanium dioxide, zirconia, or a combination thereof.

8. The photosensitive resin composition of claim 1 , wherein the photosensitive resin composition further includes a thiol-based additive.

9. The photosensitive resin composition of claim 8 , wherein the thiol-based additive includes at least two functional groups represented by Chemical Formula 7 at the terminal end:

wherein, in Chemical Formula 7,

L 7 and L 8 are independently a single bond, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C3 to C20 cycloalkylene group, a substituted or unsubstituted C6 to C20 arylene group, or a substituted or unsubstituted C2 to C20 heteroarylene group.

10. The photosensitive resin composition of claim 1 , wherein the quantum dot absorbs light of 360 nm to 780 nm and emits fluorescence of 500 nm to 700 nm.

11. The photosensitive resin composition of claim 1 , wherein the photosensitive resin composition includes:

1 wt % to 30 wt % of (A) the quantum dot;

1 wt % to 30 wt % of (B) the binder resin;

1 wt % to 10 wt % of (C) the photopolymerizable monomer;

0.1 wt % to 5 wt % of (D) the photopolymerization initiator; and

a balance amount of (E) the solvent

based in a total amount of the photosensitive resin composition.

12. The photosensitive resin composition of claim 1 , wherein the photosensitive resin composition further includes malonic acid; 3-amino-1,2-propanediol; a silane-based coupling agent; a leveling agent; a fluorine-based surfactant; or a combination thereof.

13. A photosensitive resin layer manufactured using the photosensitive resin composition of claim 1 .

14. A color filter comprising the photosensitive resin layer of claim 13 .