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

Patent metadata

Field	Value
Publication number	US-12421394-B2
Application number	US-202117391348-A
Country	US
Kind code	B2
Filing date	Aug 2, 2021
Priority date	Aug 17, 2016
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

A core-shell dye including a core having a compound represented by Chemical Formula 1 and a shell surrounding the core and represented by Chemical Formula 2 or Chemical Formula 3, a photosensitive resin composition including the same, and a color filter manufactured using the photosensitive resin composition.

(In Chemical Formulae 1 to 3, each substituent is the same as defined in the specification.)

First claim

What is claimed is:

1. A photosensitive resin composition, comprising:
0.5 wt % to 4 wt % of a core-shell dye;
0.1 wt % to 30 wt % of a binder resin;
0.1 wt % to 30 wt % of a photopolymerizable monomer;
0.1 wt % to 30 wt % of a photopolymerization initiator; and
a solvent, all wt % being based on a total weight of the photosensitive resin composition,
wherein the core-shell dye includes:
a core comprising a compound represented by Chemical Formula 1-1 to Chemical Formula 1-8; and
a shell surrounding the core and 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.

2. The photosensitive resin composition of claim 1 , wherein L 1 to L 4 are independently a substituted or unsubstituted C1 to C10 alkylene group.

3. The photosensitive resin composition of claim 1 , wherein the shell is represented by Chemical Formula 2-1 or Chemical Formula 3-1,

4. The photosensitive resin composition of claim 3 , wherein a cage width of the shell ranges from 6.5 Å to 7.5 Å.

5. The photosensitive resin composition of claim 1 , wherein the core has a length of 1 nm to 3 nm.

6. The photosensitive resin composition of claim 1 , wherein the core has a maximum absorption peak in a wavelength of 530 nm to 680 nm.

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

8. The photosensitive resin composition of claim 1 , wherein the core-shell dye includes the core and the shell in a mole ratio of 1:1.

9. The photosensitive resin composition of claim 1 , wherein the core-shell dye is a green dye.

10. The photosensitive resin composition of claim 1 , wherein the photosensitive resin composition further includes a pigment.

11. 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 including a vinyl group or a (meth)acryloxy group, a leveling agent, a surfactant, a radical polymerization initiator, or a combination thereof.

12. A color filter manufactured comprising the photosensitive resin composition of claim 1 .

Assignees

• Samsung Sdi Co Ltd

Inventors

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

Classifications

• C09B57/007 Primary

  Squaraine dyes · CPC title

• G03F7/105

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

• G03F7/032

  with binders · CPC title

• G03F7/028

  with photosensitivity-increasing substances, e.g. photoinitiators · CPC title

• G02B5/20

  Filters (polarising elements G02B5/30) · CPC title