Photosensitive colored resin composition, color filter and manufacturing method thereof, and liquid crystal display device

Abstract

A photosensitive coloring resin composition comprises a colorant (A), an alkali-soluble resin (B), a photopolymerizable compound (C), a photoinitiator (D), and a solvent (E). The aluminum content in the photosensitive coloring resin composition is from 1 ppm to 100 ppm, and the colorant (A) includes zinc phthalocyanine dye (A-1). The present invention also provides a method for manufacturing a color filter comprising forming a pixel layer using the above-described photosensitive coloring resin composition, a color filter obtained by the above-described manufacturing method, and a liquid crystal display comprising the above-described color filter. By employing the colorant (A) including zinc phthalocyanine dye (A-1) and controlling the aluminum content to from 1 ppm to 100 ppm, the present invention can reduce the size of foreign matter after multi-stage thermal processing in the pixel layer formed by the photosensitive coloring resin composition.

Claims

1. A photosensitive coloring resin composition, comprising: a colorant (A); an alkali-soluble resin (B); a photopolymerizable compound (C); a photoinitiator (D); and a solvent (E); wherein, The aluminum content in the photosensitive coloring resin composition ranges from 5 ppm to 50 ppm, and the colorant (A) includes zinc phthalocyanine dye (A-1).

2. The photosensitive coloring resin composition as claimed in claim 1, wherein, The copper content in this photosensitive coloring resin composition is less than 50 ppm.

3. The photosensitive coloring resin composition as claimed in claim 1, wherein, The nickel content in this photosensitive coloring resin composition is less than 50 ppm.

4. The photosensitive coloring resin composition as claimed in claim 1, wherein, The zinc phthalocyanine dye (A-1) is a compound as shown in formula (I), where (I) A1 to A16 each independently represent a hydrogen atom, a halogen atom or a group as shown in formula (II), and at least one of A1 to A16 represents a group as shown in formula (II), where (II) X represents a divalent linker, A17 represents a substituted or unsubstituted phenyl group, and "*" represents a bonding position.

5. The photosensitive coloring resin composition as claimed in claim 4, wherein, Six or more of A1 to A16 represent fluorine atoms.

6. A method for manufacturing a color filter, comprising: forming a pixel layer using a photosensitive coloring resin composition as described in any one of claims 1 to 5.

7. A color filter, which is manufactured by the method for manufacturing a color filter as described in claim 6.

8. A liquid crystal display comprising: a color filter as described in claim 7.