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Pigment-dispersed resist composition for color filters and pigment dispersion resist composition for color filter

A color filter, pigment dispersant technology, applied in the direction of photosensitive materials, optics, organic dyes for optomechanical equipment, etc. Stability, no development residue, heat resistance improvement effect

Pending Publication Date: 2020-12-01
SAKATA INX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

While pursuing the quality of the color filter as the final product, it is more difficult to meet the requirements in terms of processability due to the large amount of pigment dispersion composition contained in the resist
[0003] In particular, it is difficult to balance the two contradictory performances of the improvement of the resolubility in propylene glycol monomethyl ether acetate (PGMEA) and the improvement of the solubility in an alkaline developer.

Method used

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  • Pigment-dispersed resist composition for color filters and pigment dispersion resist composition for color filter
  • Pigment-dispersed resist composition for color filters and pigment dispersion resist composition for color filter
  • Pigment-dispersed resist composition for color filters and pigment dispersion resist composition for color filter

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Embodiment

[0152] The following examples are given to illustrate the present invention in more detail, but the present invention is not limited to these examples. In addition, unless otherwise stated, "%" means "% by mass", and "part" means "part by mass".

[0153]

[0154] Acrylic dispersants shown in Table 1 below were obtained.

[0155] In the following Table 1 and Table 2, the part enclosed with "()" in the column of composition represents a block, and the numerical value distinguished by " / " represents the mass ratio which each monomer has. " / / " indicates the mass ratio of each block. Each dispersant was in the form of a solution dissolved in a mixed solvent having a composition and a mixing ratio of PGMEA:PGME=2:1 so that the solid content concentration would be 40% by mass.

[0156] "-b-" in the composition column indicates that the blocks composed of monomers surrounded by "()" on both sides are block-copolymerized with each other. When not enclosed by "()", it is a random p...

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Abstract

The present invention addresses the problem of providing a pigment-dispersed resist composition for color filters, which is produced on the basis of a pigment-dispersed composition for color filters.The purpose of the present invention is to reduce the viscosity of the pigment dispersion resist composition for color filters, improve viscosity stability, PGMEA resolubility, alkali developer solubility (potassium hydroxide aqueous solution solubility, TMAH aqueous solution solubility), and heat resistance, and prevent development residues. As a solution, the present invention provides a pigmentdispersion composition for a color filter, which contains a coloring pigment, a pigment dispersant, an alkali-soluble resin and an organic solvent, and which is characterized in that the pigment dispersant contains an acrylic block polymer containing an amino group and / or a pyridine ring, and the alkali-soluble resin contains a block polymer.

Description

technical field [0001] The present invention relates to a pigment dispersion composition for color filters and a pigment dispersion resist composition for color filters. Background technique [0002] In recent years, the development of color filters for high color reproduction has been advanced, and along with this, the performance required for the pigment dispersion composition for color filters and the pigment dispersion resist composition for color filters has also become strict. In pursuit of the quality of the color filter as a final product, it is also more difficult to require processability because a large amount of the pigment dispersion composition in the resist is contained. [0003] In particular, it is difficult to achieve both contradictory performances of improvement in resolubility in propylene glycol monomethyl ether acetate (PGMEA) and improvement in solubility in an alkaline developing solution. [0004] prior art literature [0005] patent documents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/20C09B67/46G03F7/00G03F7/004
CPCC09B67/006C09B67/009G03F7/0007G03F7/004G03F7/105C09B67/0084
Inventor 山田真裕关伸章荒明遼一
Owner SAKATA INX
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