Core-shell dye, photo-sensitive resin composition comprising same, and color filter

Patent metadata

Field	Value
Publication number	US-11091645-B2
Application number	US-201716090670-A
Country	US
Kind code	B2
Filing date	Jan 31, 2017
Priority date	Aug 17, 2016
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

Provided are a core-shell dye includes a core including a compound represented by Chemical Formula 1 and a shell surrounding the core, a photosensitive resin composition including the same, and a color filter manufactured using the photosensitive resin composition.(In Chemical Formula 1, each substituent is the same as defined in the specification.)

First claim

What is claimed is:

1. A core-shell dye, comprising
a core comprising a compound represented by Chemical Formula 1; and
a shell surrounding the core,

wherein, in Chemical Formula 1,
R 1 and R 3 are independently a substituted or unsubstituted C1 to C20 alkyl group or a substituted or unsubstituted C3 to C20 cycloalkyl group, and R 2 and R 4 are independently a C6 to C20 aryl group substituted with a C1 to C10 alkyl group or a C3 to C10 cycloalkyl group.

2. The core-shell dye of claim 1 , wherein the R 1 and R 3 are the same, and the R 2 and R 4 are the same.

3. The core-shell dye of claim 1 , wherein the compound represented by Chemical Formula 1 is selected from compounds represented by Chemical Formula 1-1 to Chemical Formula 1-8,

4. The core-shell dye of claim 1 , wherein the shell is represented by Chemical Formula 2 or Chemical Formula 3,

wherein, in Chemical Formula 2 and Chemical Formula 3,
L 1 to L 4 are independently a single bond or a substituted or unsubstituted C1 to C10 alkylene group.

5. The core-shell dye of claim 4 , wherein the L 1 to L 4 are independently a substituted or unsubstituted C1 to C10 alkylene group.

6. The core-shell dye of claim 4 , wherein the shell is represented by Chemical Formula 2-1 or Chemical Formula 3-1,

7. The core-shell dye of claim 6 , wherein a cage width of the shell ranges from 6.5 Å to 7.5 Å.

8. The core-shell dye of claim 1 , wherein the core has a length of 1 nm to 3 nm.

9. The core-shell dye of claim 1 , wherein the core has a maximum absorption peak in a wavelength of 530 nm to 680 nm.

10. The core-shell dye of claim 1 , wherein the core-shell dye is selected from compounds represented by Chemical Formula 4 to Chemical Formula 19,

11. The core-shell dye of claim 1 , wherein the core-shell dye includes the core and the shell in a mole ratio of 1.1.

12. The core-shell dye of claim 1 , wherein the core-shell dye is a green dye.

13. A photosensitive resin composition comprising the core-shell dye of claim 1 .

14. The photosensitive resin composition of claim 13 , wherein the photosensitive resin composition further includes a binder resin, a photopolymerizable monomer, a photopolymerization initiator, and a solvent.

15. The photosensitive resin composition of claim 14 , wherein the photosensitive resin composition further includes a pigment.

16. The photosensitive resin composition of claim 14 , wherein the photosensitive resin composition includes
0.5 wt % to 10 wt % of the core-shell dye;
0.1 wt % to 30 wt % of the binder resin;
0.1 wt % to 30 wt % of the photopolymerizable monomer;
0.1 wt % to 5 wt % of the photopolymerization initiator; and
a balance amount of the solvent
based on a total amount of the photosensitive resin composition.

17. The photosensitive resin composition of claim 14 , wherein the photosensitive resin composition further includes malonic acid, 3-amino-1,2-propanediol, a silane-based coupling agent including a vinyl group or a (meth)acryloxy group, a leveling agent, a surfactant, a radical polymerization initiator, or a combination thereof.

18. A color filter manufactured using the photosensitive resin composition of claim 13 .

19. A core-shell dye, comprising:
a core comprising a compound represented by Chemical Formula 1; and
a shell surrounding the core,

wherein, in Chemical Formula 1, R 1 and R 3 are independently a substituted or unsubstituted C1 to C20 alkyl group or a substituted or unsubstituted C3 to C20 cycloalkyl group, and R 2 and R 4 are independently a C6 to C20 aryl group substituted with a C1 to C10 alkyl group or a C3 to C10 cycloalkyl group,
wherein the core has a maximum absorption peak in a wavelength of 530 nm to 680 nm, and
wherein the shell is represented by Chemical Formula 2 or Chemical Formula 3,

wherein, in Chemical Formula 2 and Chemical Formula 3,
L 1 to L 4 are independently a single bond or a substituted or unsubstituted C1 to C10 alkylene group.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Seo Hyewon
• Pak Chaewon
• Shin Myoungyoup
• Shin Sunwoong
• Jeong Euisoo
• Choi Kyubuem

Classifications

• G03F7/0007

  Filters, e.g. additive colour filters; Components for display devices · CPC title

• C09B57/007 Primary

  Squaraine dyes · CPC title

• C09B67/0097

  Dye preparations of special physical nature; Tablets, films, extrusion, microcapsules, sheets, pads, bags with dyes · CPC title

• G03F7/0048

  characterised by the solvents or agents facilitating spreading, e.g. tensio-active agents · CPC title

• G03F7/105

  having substances, e.g. indicators, for forming visible images · CPC title