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Colored curable composition, colored pattern and color filter using the same

A technology of composition and polymer compound, which is applied in the photoengraving process of pattern surface, photosensitive materials and instruments for opto-mechanical equipment, etc., can solve the deterioration of cleanliness and solubility of uncured layer, and the easy decline of alkali solubility. , the sensitivity is easy to drop and other problems, to achieve the effect of excellent cleaning and removability, excellent slit coating suitability, good pattern forming characteristics

Inactive Publication Date: 2009-04-01
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the dispersibility of the pigment is insufficient, a large amount of development residue (residue) will be formed on the substrate, and the chromaticity and dimensional accuracy will decrease in the manufactured color filter, or its contrast will decrease significantly
When the dispersion stability of the pigment is insufficient, the following problems are likely to occur particularly in the manufacturing process of the color filter: the uniformity of the layer thickness tends to decrease during the coating process of the colored curable composition, and the sensitivity during the exposure process tends to be easily reduced. decrease, and / or alkali solubility tends to decrease during development
A color filter formed using a dispersion in which a large amount of secondary aggregates exist not only has a large amount of light dispersion, significantly lowers the contrast ratio, and occurs color density unevenness, but also has degraded cleanability and solubility of the uncured layer due to pigment aggregation

Method used

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  • Colored curable composition, colored pattern and color filter using the same
  • Colored curable composition, colored pattern and color filter using the same
  • Colored curable composition, colored pattern and color filter using the same

Examples

Experimental program
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Effect test

preparation example Construction

[0154] [Preparation of Pigment Dispersion Composition]

[0155] The pigment dispersion composition can be prepared by a mixing and dispersing process, that is, mixing and dispersing using various mixers and dispersers. It should be noted that although mixing and kneading dispersion is preferably performed in this mixing and dispersion process followed by fine dispersion treatment, mixing and kneading dispersion may be omitted.

[0156] Specifically, the pigment dispersion composition is prepared, for example, by mixing a pigment and, if necessary, a polymer dispersant with a homogenizer or the like in advance, and then using a bead disperser with zirconia beads or the like (for example, DISPERMAT, trade name, manufactured by GETZMANN) to finely disperse the previously prepared dispersion. The dispersion time is preferably about 3 to 6 hours. For micro-dispersion treatment using beads, vertical sand mills, horizontal sand mills, pin mills, slit grinders, ultrasonic dispersers...

Embodiment 1

[0307]

[0308] Through a high-speed rotary mill (trade name ACM-10A, manufactured by Hosokawa Micron Corporation), calcined and dried flake salt (manufactured by Ajishokuken Co., Ltd. (trade name: SOFT SALT S-50), Mg content 0.03%, water content 0.11%) crushed. When the particle size distribution of the pulverized salt was measured using a MICROTRAC particle size analyzer (trade name, manufactured by Nikkiso Co., Ltd.), the median particle size by volume was 6.2 μm, and the 95% particle size was 12.8 μm. When the pulverized salt was observed using a scanning electron microscope, it was observed that the salt particles had polygonal shapes and a rough surface. 1000 parts of the obtained pulverized salt, 100 parts of ε-crystal form copper phthalocyanine pigment (C.I. Pigment Blue 15:6, manufactured by Toyo Ink Manufacturing Co., Ltd. (trade name: Lionol BlueE)) and 110 parts of di Glycol was added to a 1-gallon kneader (manufactured by Inoue Manufacturing Co., Ltd.), and mix...

Embodiment 2

[0341] The colored curable composition (color resist liquid) of Example 2 was prepared in a manner similar to that of Example 1, except that the amount of dispersion resin C added when preparing the pigment dispersion composition of Example 1 was changed to 5 parts . The contact angle of the dry coating of the colored curable composition of Example 2 with water was measured by the method of Example 1, and it was 70°. The surface roughness of the dry coating was measured in a similar manner and was 3 nm.

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Abstract

A colored curable composition is provided excellent in pigment dispersibility and dispersion stability, even when a pigment that has been made fine is included therein, suppressing the generation of foreign matter and the like in slit coating, the colored curable composition being capable of forming a highly uniform colored layer, with excellent cleanability and solubility of the dried colored layer. A colored curable composition containing a pigment (A) made into fine particles in the presence of sodium chloride (NaCl), an alkali soluble resin (B), a polymerizable compound (C), a photopolymerization initiator (D), and a solvent (E), wherein the pigment is included at 40 mass % to 70 mass % with respect to the total solids of the colored curable composition, and the contact angle of waterto a coated layer obtained from coating the colored curable composition on a substrate and drying is 60 DEG or greater.

Description

technical field [0001] The present invention relates to a colored curable composition, a colored pattern formed using the colored curable composition, and a color filter with the colored pattern. Background technique [0002] The color filter is produced by forming a colored pattern and a black matrix made of a colored curable composition containing an organic pigment or an inorganic pigment dispersed therein using a photolithography method, an inkjet method, or the like Pigment dispersion composition, polymerizable compound, polymerization initiator, alkali-soluble resin and other components. [0003] In recent years, color filters have been used not only in liquid crystal display (LCD) elements for monitors, but also in televisions (TVs). Accompanying such use expansion, in order to be able to efficiently manufacture color filters having a large surface area, improvement in productivity is required. For this reason, a slit coating method has replaced a commonly used spin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/004G02B5/23C09B67/04
CPCG03F7/033G03F7/0007C08F22/00G03F7/004G03F7/028
Inventor 根本洋一
Owner FUJIFILM CORP