Colored photosensitive resin composition and colored filter and display device containing such composition

Patent metadata

Field	Value
Publication number	US-9291894-B2
Application number	US-201314240538-A
Country	US
Kind code	B2
Filing date	Dec 16, 2013
Priority date	May 30, 2013
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

Abstract

A colored photosensitive resin composition, and a colored filter and a display device including the same. The colored photosensitive resin composition comprises a pigment dispersion solution, an alkaline soluble resin, a light polymerizable compound, a photoinitiator, an adjuvant and a solvent, wherein the solvent includes 60%-85% of propylene glycol methyl ether acetate and 15%-40% of a dibasic acid ester, based on the total weight of the solvent. The colored photosensitive resin composition has good stability.

First claim

What is claimed is:

1. A colored photosensitive resin composition comprising
4%-45% of a pigment dispersion solution,
5%-40% of an alkaline soluble resin, a
1%-15% of a light polymerizable compound, a
0.1%-3% of a photoinitiator,
0.1%-1% of an adjuvant and
40%-70% of a solvent based on the total weight of the colored photosensitive resin composition, wherein the solvent consisting essentially of 60%-85% of propylene glycol methyl ether acetate and 15%-40% of a dibasic acid ester, based on the total weight of the solvent.

2. The colored photosensitive resin composition according to claim 1 , wherein the dibasic acid ester is selected from one or more of dimethyl succinate, diethyl succinate, dibutyl succinate, diisooctyl succinate, dimethyl glutarate, diethyl glutarate, dibutyl glutarate, diisooctyl glutarate, dimethyl adipate, diethyl adipate, dibutyl adipate, and diisooctyl adipate.

3. The colored photosensitive resin composition according to claim 1 , wherein the pigment dispersion solution comprises 8%-20% of a pigment, 2.5%-10% of a dispersing agent, 1%-6% of a binder resin, and 65%-85% of a solvent, based on the total weight of the pigment dispersion solution.

4. The colored photosensitive resin composition according to claim 3 , wherein the solvent consisting essentially of 60%-85% of propylene glycol methyl ether acetate and 15%-40% of a dibasic acid ester, based on the total weight of the solvent.

5. The colored photosensitive resin composition according to claim 3 , wherein the pigment is a phthalocyanin, azo, or pyrrolopyrrole organic pigment.

6. The colored photosensitive resin composition according to claim 3 , wherein the dispersing agent is amide polymer, a modified polyurethane polymer or an acrylate block copolymer.

7. The colored photosensitive resin composition according to claim 3 , wherein the binder resin is an epoxy resin.

8. The colored photosensitive resin composition according to claim 1 , wherein the alkaline soluble resin is an aromatic acid acrylate ester, a copolymer of styrene and maleic anhydride, a polyurethane acrylate, a hydroxy-containing polyester acrylate ester, or a combination thereof.

9. The colored photosensitive resin composition according to claim 1 wherein the light polymerizable compound is a maleimide, or a phthalimide, or a combination thereof.

10. The colored photosensitive resin composition according to claim 1 , wherein the photoinitiator is an acetophenone, an aromatic ketone, an aromatic sulfonium salt, iodonium salt, or a cyclopentadienyl iron salt.

11. The colored photosensitive resin composition according to claim 1 , wherein the adjuvant is selected from at least one of an ultraviolet absorbent, an organic silicon leveling agent, a silicone leveling agent, a diphenyl polysiloxane, a methylphenyl polysiloxane, an organic modified siloxane, or an organic modified fluorosiloxane.

12. A colored filter comprising a color film, wherein the colored film is made from the colored photosensitive resin composition according to claim 1 .

13. A display device, comprising the colored filter according to claim 12 .

Assignees

• Boe Technology Group Co Ltd

Inventors

• Liu Chen
• Shu Shi

Classifications

• G03F7/004

  Photosensitive materials (G03F7/12, G03F7/14 take precedence) · CPC title

• G03F7/0007

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

• G02F1/133514

  Colour filters · CPC title

• G03F7/0048 Primary

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

• G03F7/032

  with binders · CPC title