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Color material dispersion, photosensitive colored resin composition, color filter, liquid crystal display device, and organic light emitting display device

A color filter and resin composition technology, applied in the field of organic light-emitting display devices, can solve problems such as peeling of colored resin layers, and achieve the effects of high brightness, excellent color material dispersion stability, and excellent solvent resolubility

Active Publication Date: 2020-02-14
DNP FINE CHEMICALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, if the concentration of the coloring material is increased and the content of the dispersant is increased, the amount of the binder is relatively reduced, so the problem that the colored resin layer is easily peeled off from the base substrate during development occurs.

Method used

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  • Color material dispersion, photosensitive colored resin composition, color filter, liquid crystal display device, and organic light emitting display device
  • Color material dispersion, photosensitive colored resin composition, color filter, liquid crystal display device, and organic light emitting display device
  • Color material dispersion, photosensitive colored resin composition, color filter, liquid crystal display device, and organic light emitting display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0575] Examples are shown below to specifically illustrate the present invention. The present invention is not limited by these descriptions.

[0576] The acid value of the block copolymer before salt formation, and the acid value of the salt type block copolymer subjected to salt formation with the compound represented by the general formula (2) were determined by the method based on the method described in JIS K 0070 have to.

[0577] The amine value of the block copolymer before salt formation and the amine value of the salt type block copolymer obtained by salt formation with the compound represented by the general formula (2) were determined by the method based on the method described in JIS K 7237 have to.

[0578] The glass transition temperature (Tg) of the block copolymer before and after salt formation was measured by differential scanning calorimetry (DSC) (manufactured by SII Nano Technology Co., Ltd.) according to the method described in JIS K 7121. EXSTARDSC 7...

Embodiment I

[0595] Series I of Examples: First Aspect of the Invention

Synthetic example 1

[0596] (Synthesis Example 1: Production of Block Copolymer A-1)

[0597]250 parts by mass of THF and 0.6 parts by mass of lithium chloride were added to a 500 mL round-bottomed four-necked separable flask equipped with a cooling tube, a funnel for addition, an air inlet for nitrogen, a mechanical stirrer, and a digital thermometer, and nitrogen replacement was sufficiently performed. . After cooling the reaction flask to -60°C, 4.9 parts by mass of butyllithium (15% by mass hexane solution), 1.1 parts by mass of diisopropylamine, and 1.0 parts by mass of methyl isobutyrate were injected using a syringe. 0.37 parts by mass of 1-ethoxyethyl methacrylate (EEMA), 18.6 parts by mass of 2-ethylhexyl methacrylate (EHMA), n-butyl methacrylate as monomers for the B block (BMA) 15.4 mass parts, benzyl methacrylate (BzMA) 9.5 mass parts, and methyl methacrylate (MMA) 29.3 mass parts were dripped over 60 minutes using the addition funnel. After 30 minutes, 27.0 parts by mass of dimethyl...

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PUM

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Abstract

Provided is coloring material dispersant for a color filter, said coloring material dispersant containing a coloring material, a dispersant and a solvent, wherein the dispersant comprises at least one of a block copolymer (P1) described below and a salt-type block copolymer (P2) described below. P1 is a block copolymer containing an A block, which contains structural units represented by general formula (I), and a B block containing structural units derived from monomers containing a carboxy group. P2 is a salt-type block copolymer in which a salt is formed by at least a portion of the nitrogen sites at the ends of the structural units represented by general formula (I) of the aforementioned block copolymer, and at least one compound selected from the group consisting of the compounds represented by general formulas (1) to (3). The acid value of the dispersant is 1-18 KOH / g, and the glass transition temperature of the dispersant is at least 30 DEG C. (Each symbol in general formula (I) and formulas (1) to (3) is as defined in the description.)

Description

technical field [0001] The present invention relates to a color material dispersion liquid for color filters, a photosensitive colored resin composition for color filters, a color filter, a liquid crystal display device, and an organic light-emitting display device. Background technique [0002] In recent years, with the development of personal computers, especially portable personal computers, the demand for liquid crystal displays has increased. The penetration rate of mobile displays (mobile phones, smart phones, tablet PCs) is also increasing, and the market for liquid crystal displays is expanding. In addition, recently, organic light-emitting display devices such as organic EL displays that utilize self-luminescence and have high visibility have also attracted attention as next-generation image display devices. Among the performances of these image display devices, further improvement in image quality such as improvement in contrast and color reproducibility, and redu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/20G02F1/1335G03F7/004H01L51/50H05B33/12
Inventor 长井健朗中村和彦冢本力飞五十岚一贵上森理惠市川裕司
Owner DNP FINE CHEMICALS CO LTD
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