WO2011158794A1 - 着色樹脂組成物、着色硬化膜、カラーフィルター、表示装置及び固体撮像素子 - Google Patents
着色樹脂組成物、着色硬化膜、カラーフィルター、表示装置及び固体撮像素子 Download PDFInfo
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- WO2011158794A1 WO2011158794A1 PCT/JP2011/063514 JP2011063514W WO2011158794A1 WO 2011158794 A1 WO2011158794 A1 WO 2011158794A1 JP 2011063514 W JP2011063514 W JP 2011063514W WO 2011158794 A1 WO2011158794 A1 WO 2011158794A1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/0045—Photosensitive materials with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
- G03F7/11—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having cover layers or intermediate layers, e.g. subbing layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
Definitions
- the present invention relates to a colored resin composition for forming a blue pixel, a color filter formed using the same, a liquid crystal display device formed using the color filter, an image sensor (CCD, CMOS), an organic EL display, and the like
- the present invention relates to an electronic display device.
- liquid crystal display elements such as liquid crystal displays (LCD) typified by notebook computers, liquid crystal televisions, mobile phones, etc., and image sensors (CCD, CMOS) used as input devices for digital cameras, color copiers, etc.
- a color filter is required.
- As a method for producing a color filter used in these liquid crystal display devices and solid-state image sensors there are a dyeing method, an electrodeposition method, a printing method, a pigment dispersion method, and the like. In recent years, the pigment dispersion method has become the mainstream.
- a patterning method a photolithography method is typical, and a color filter is formed using a mixture of a photosensitive resin composition and a pigment dispersion.
- a method of forming a color filter by applying a colored ink directly on a substrate without using a mask by an ink jet printer is also performed.
- Improvement of color purity, saturation, brightness, and contrast, which are characteristics required for color filters, is particularly important.
- the amount of light of the backlight can be suppressed and the power consumption can be reduced, so this is an environmentally necessary technology.
- In order to improve the color purity of the color filter it is necessary to increase the content of the color pigment or to select a pigment having a better spectral waveform.
- the pigment concentration must be reduced or the film thickness must be reduced.
- a method of making fine particles of a pigment has been carried out, but there is a limit to the resistance and dispersion stability, and even if the brightness is improved, it is not possible to achieve both resistances. .
- Patent Documents 1 and 2 report on a color filter using a triphenylmethane compound, but the triphenylmethane compound is extremely inferior in light resistance and heat resistance and is not at a practical level.
- Patent Document 3 describes that xanthene compounds are excellent in lightness, but does not describe resistance.
- xanthene is known to be a fluorescent dye, and like a pigment, there is a possibility of causing a decrease in contrast due to light scattering.
- a solvent having a high dissolving power such as N-methylpyrrolidone is used as a solvent for the alignment film material, and it does not elute even when immersed in this solvent. It is desired not to change the spectrum.
- dyes are particularly required to have solvent resistance because they have higher solvent solubility than pigments.
- JP-A-8-94826 Japanese Patent Laid-Open No. 2002-14222 JP 2010-32999 A
- An object of the present invention is to provide a color filter pixel having clear color characteristics, excellent color characteristics such as contrast, and excellent heat resistance and solvent resistance.
- the present invention (1) For a color filter containing a colorant compound represented by the following formula (1), a colorant compound represented by formula (2), a binder resin, a solvent, a photopolymerization initiator, a curing agent, and a curing accelerator.
- Colored resin composition (In Formula (1), R 1b to R 6b each independently represents a hydrogen atom, a halogen atom, a C1-C12 alkyl group, a C1-C12 alkoxy group, a nitro group, a carboxyl group, or an alkoxycarbonyl group.
- Y 1 to Y 4 each independently represents a hydrogen atom, a C1-C12 alkyl group or an aryl group
- X 1 to X 5 each independently represent a hydrogen atom, a C1-C12 alkyl group, a C1-C12 alkoxy group, a halogen atom atom, a nitro group, a phenoxy group, a carboxyl group, an alkoxycarbonyl group, a carbamoyl group, a sulfo group, or .Z representing a sulfamoyl group - alkylsulfonyl methide anion, alkylsulfonyl having higher halogenated alkyl group having C1-C10 Represents an imide anion or an alkyl sulfonate).
- R 1a to R 6a each independently represents a hydrogen atom, a C1-C30 alkyl group, a phenyl group or a benzyl group.
- R 7a to R 20a each independently represents a hydrogen atom, a halogen atom, .Z represents an alkyl group of C1-C6 - have the same meanings as in formula (1)),.
- the colorant compound according to (1), wherein Z ⁇ in formula (1) and formula (2) is each independently a tristrifluoromethanesulfonylmethide anion, bistrifluoromethanesulfonylimide anion, or trifluoromethanesulfonate.
- a colored resin composition comprising, (3) The colored resin composition according to (1) or (2), which contains an epoxy resin represented by the following formula (3) as a curing agent.
- R 1c to R 19c each independently represents a hydrogen atom, a C1-C12 alkyl group, a C1-C12 alkoxy group, or a halogen atom.
- G represents a glycidyl group).
- the colored resin composition of the present invention has a good contrast characteristic while having a clear color characteristic by using a colored resin composition containing a specific dye-based color material compound, and has heat resistance and solvent resistance. It is possible to provide a high-quality color filter pixel for a color filter excellent in the above.
- the colored resin composition of the present invention contains a binder resin, a solvent, a photopolymerization initiator, a curing agent, a curing accelerator, and a specific dye-based coloring material compound, and if necessary, the color of other pigments or dyes
- Various additives such as a material compound, a surfactant, a thermosetting agent, a polymerization inhibitor, and an ultraviolet absorber can be contained, but are not limited to these, and components other than a specific dye-based color material compound Can be used without any particular restrictions.
- the pixel manufacturing method using the colored resin composition of the present invention mainly includes a photolithography method and an inkjet method, and the former uses a photosensitive resin composition having excellent developability using a photopolymerization initiator.
- the latter does not necessarily require a photopolymerization initiator and a thermosetting resin composition is used.
- R 1b to R 6b of the specific dye-based colorant compound represented by the formula (1) used in the present invention are each independently a hydrogen atom, a halogen atom, a C1-C12 alkyl group, or a C1-C12 Represents an alkoxy group, a nitro group, a carboxyl group, or an alkoxycarbonyl group;
- Y 1 to Y 4 each independently represent a hydrogen atom, a C1-C12 alkyl group, or an aryl group.
- X 1 to X 5 are each independently a hydrogen atom, C1-C12 alkyl group, C1-C12 alkoxy group, halogen atom, nitro group, phenoxy group, carboxyl group, alkoxycarbonyl group, carbamoyl group, sulfo group, sulfamoyl group 1 type or 2 types or more may be included, and among them, a carboxyl group and an alkoxycarbonyl group are preferable.
- Anion Z - is an alkyl sulfonyl methide anion, sulfonyl imide anion, or alkyl sulfonates having higher halogenated alkyl group having C1-C10.
- alkyl group examples include methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, sec-butyl group, t-butyl group, iso-butyl group, n-pentyl group, Examples thereof include C1-C12 alkyl groups such as n-hexyl group, n-octyl group, 2-ethylhexyl group and cyclohexyl group. These alkyl groups may have a substituent.
- alkyl group having a substituent examples include a hydroxyethyl group, a hydroxypropyl group, a hydroxybutyl group, a 2-sulfoethyl group, a carboxyethyl group, a cyanoethyl group, a methoxy group, and the like. Examples thereof include an ethyl group, an ethoxyethyl group, a butoxyethyl group, a trifluoromethyl group, and a pentafluoroethyl group.
- the substituent that the alkyl group may have includes a carbamoyl group, a carboxyl group, and the like.
- alkoxy group examples include an alkoxy group having the same C1-C12 alkyl group as the alkyl group, and examples of the alkoxycarbonyl group also include an alkoxycarbonyl group having a C1-C12 alkyl group.
- aryl group examples include aromatic hydrocarbon residues such as phenyl, naphthyl, anthryl, phenanthryl, pyrenyl, and benzopyrenyl; pyridyl, pyrazyl, pyrimidyl, quinolyl, isoquinolyl, pyrrolyl Groups, indoleenyl groups, imidazolyl groups, carbazolyl groups, thienyl groups, furyl groups and other aromatic heterocyclic residues.
- aryl groups may have a substituent, and examples of the substituent include an alkyl group, an alkoxy group, a halogen atom, a sulfo group, a carboxyl group, an alkoxycarbonyl group, a carbamoyl group, and a cyano group.
- Examples of the halogen atom in the general formulas (1) and (2) include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
- the above phenoxy group may have a substituent, and examples of the substituent include a C1-C12 linear or branched alkyl group, a halogen atom, an amino group, an alkylamino group, and a hydroxyl group.
- alkoxycarbonyl group examples include methyloxycarbonyl, ethyloxycarbonyl, propyloxycarbonyl, isopropyloxycarbonyl, butyloxycarbonyl, isobutyloxycarbonyl, pentyloxycarbonyl, isopentyloxycarbonyl, neopentyloxycarbonyl, and cyclopentyloxycarbonyl.
- the above carbamoyl group may have a substituent, and examples of the substituent include a C1-C12 linear or branched alkyl group, a phenyl group, a tosyl group, and a pyrimidinyl group.
- the carbamoyl group includes an aliphatic group in which two alkyl groups bonded to nitrogen have a C3-C12 cycloalkyl ring in combination with the nitrogen atom, or one or more heteroatoms such as nitrogen, oxygen, and sulfur.
- a family heterocycle can be formed.
- sulfo group examples include methanesulfonyl, ethanesulfonyl, hexanesulfonyl, decanesulfonyl and the like.
- sulfamoyl group examples include sulfamoyl, methanesulfamoyl, ethanesulfamoyl, propanesulfamoyl, isopropanesulfamoyl, butanesulfamoyl, isobutanesulfamoyl, pentansulfamoyl, isopentanesulfamoyl, Neopentanesulfamoyl, cyclopentanesulfamoyl, hexanesulfamoyl, cyclohexanesulfamoyl, heptanesulfamoyl, cycloheptanesulfamoyl, octanessulfamoyl, 2-ethylhexanesulfamoyl, 1,5- Dimethylhexanesulfamoyl, cyclooctanesulfamoyl, nonanesulfamoyl,
- the anion moiety Z ⁇ of the dye-based colorant compound represented by the general formula (1) and the formula (2) is each independently a C1-C10 higher alkyl halide. It represents an alkylsulfonylmethide anion, an alkylsulfonylimide anion or an alkylsulfonate having a group. Specific examples thereof include tristrifluoromethanesulfonylmethide anion, bistrifluoromethanesulfonylimide anion, trifluoromethylsulfonate, and nonafluorobutylsulfonate, and tristrifluoromethanesulfonylmethide anion is particularly preferable.
- examples of the C1-C30 alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, 1-methylpropyl group (s-butyl group), isobutyl group, pentyl group, 1-ethylpropyl group, 1-methylbutyl group, cyclopentyl group, hexyl group, 1-methylpentyl group, 1-ethylbutyl group, cyclohexyl group Hydroxypropyl group, 2-sulfoethyl group, carboxyethyl group, cyanoethyl group, methoxyethyl group, ethoxyethyl group, butoxyethyl group, trifluoromethyl group, pentafluoroethyl group, 2-heptyl group, heptyl group
- alkyl groups may have a substituent, and the substituent is not particularly limited, and examples thereof include a hydroxy group, a sulfo group, a carboxyl group, a cyano group, an alkoxyl group such as a methoxy group and an ethoxy group, and a halogen. It is done.
- the phenyl group or benzyl group may have a substituent, and examples of the substituent include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, (C1-C5) alkyl groups such as isobutyl group, t-butyl group and pentyl group, halogen atoms such as fluorine atom, chlorine atom, bromine atom and iodine atom, sulfonic acid group, methoxy group, ethoxy group, propoxy group, butoxy Groups, (C1-C6) alkoxy groups such as t-butoxy group, hexyloxy group, hydroxy (C1-C5) alkyl groups such as hydroxyethyl group, hydroxypropyl group, methoxyethyl group, ethoxyethyl group, ethoxypropyl group, Hydrocarbons
- the C1-C6 alkyl group may be unsubstituted or substituted.
- the C1-C6 alkyl group include a methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, pentyl group, cyclopentyl group, hexyl group, cyclohexyl group, hydroxypropyl group, 2-sulfoethyl group, Examples include carboxyethyl group, cyanoethyl group, methoxyethyl group, ethoxyethyl group, butoxyethyl group, trifluoromethyl group, pentafluoroethyl group and the like.
- R 7a to R 20a in the general formula (2) are preferably a hydrogen atom, a chlorine atom, or an unsubstituted C1-C6 alkyl group.
- Z ⁇ when Z ⁇ is ⁇ , it represents a tris-trifluoromethanesulfonylmethide anion, when ⁇ ⁇ represents a bistrifluoromethanesulfonylimide anion, and when ⁇ represents trifluoromethylsulfonate.
- Examples of the dye-based color material compound of the general formulas (1) and (2) used in the colored resin composition of the present invention include, for example, Yutaka Hosoda, “Theoretical production dye chemistry” (pages 373 to 375) published by Gihodo Co., Ltd. is obtained by known synthetic methods described in the anion Z - is purchased commercially chlorine anion, it can also be synthesized by salt plus the corresponding salt or acid exchange.
- the colorant compound in which the anion part Z ⁇ in the general formulas (1) and (2) is a chlorine anion is reacted with a reaction solvent (for example, water, Or water-soluble polar solvents such as methanol, ethanol, isopropanol, acetone, N, N-dimethylformamide (hereinafter abbreviated as DMF), N-methyl-2-pyrrolidone (hereinafter abbreviated as NMP), and the like.
- a reaction solvent for example, water, Or water-soluble polar solvents such as methanol, ethanol, isopropanol, acetone, N, N-dimethylformamide (hereinafter abbreviated as DMF), N-methyl-2-pyrrolidone (hereinafter abbreviated as NMP), and the like.
- a reaction solvent for example, water, Or water-soluble polar solvents such as methanol, ethanol, isopropanol, acetone, N, N-dimethylformamide (herein
- Formula (1) and Formula included in the total solid content of the colored resin composition of the present invention (referring to the total amount of solid content including a colorant compound, a binder resin, a curing agent, and the like.
- the content of the color material compound represented by (2) is preferably 0.1 to 60 parts by mass, more preferably 3 to 30 parts by mass. When the content is higher than this range, problems of precipitation and aggregation occur, or the adhesiveness with the substrate is lowered due to insufficient curing. On the other hand, when the content is small, there is a tendency that sufficient color purity cannot be obtained as color characteristics.
- the ratio of the formula (1) and the formula (2) may be any ratio within the above range, but the content of the formula (2) is more than the formula (1) in contrast characteristics. desirable.
- the formula (2) is preferably 2 to 30 parts by mass.
- the content of the formula (1) exceeds 30 parts by mass, it is difficult to add the same amount or more in the formula (2).
- other characteristics such as lightness and resistance are not limited to this, and there may be a case where the higher the content of the formula (1), the more the characteristics appear.
- the dye-based colorant compound represented by the formula (1) and the formula (2) has low solubility in the colored resin composition, as in the case of a pigment which is an optional component described later, a dispersant or dispersion aid is used. You may disperse
- the colorant compounds represented by the above formulas (1) and (2) may be used alone or in combination, but other dyes and pigments may be mixed. Since the present invention relates to a blue pixel, it is desirable to mix with a known blue dye or violet dye, or a blue pigment or violet pigment.
- the binder resin used in the present invention functions as a dispersant and a dispersion aid because of dispersion stability at the time of pigment dispersion.
- a design of a photolithography method in a development processing step at the time of manufacturing a color filter. It is desirable that it is soluble in the alkaline developer to be used, and further it has sufficient curing characteristics with a photopolymerization initiator, a photopolymerizable monomer, etc. in order to form a good fine pattern.
- the obtained pigment-dispersed resin composition must have good compatibility with constituent materials such as a photopolymerization initiator, a photopolymerizable monomer, and a pigment dispersion, and be stable so as not to cause precipitation or aggregation.
- constituent materials such as a photopolymerization initiator, a photopolymerizable monomer, and a pigment dispersion
- alkali solubility is not particularly necessary, and therefore a resin having good compatibility with other colorant compounds and additives may be selected.
- binder resin known resins can be used, but more preferably, one or more of the following carboxyl groups, ethylenically unsaturated monomers having a hydroxyl group, or other copolymerizable aromatic hydrocarbon groups, A copolymer such as an ethylenically unsaturated monomer having an aliphatic hydrocarbon group is desirable.
- those having an epoxy group at the side chain or terminal, and epoxy acrylate resins to which acrylate is added can also be used. These monomers may be used alone or in combination of two or more.
- Examples of the carboxyl group-containing unsaturated monomer that can be used in the present invention include unsaturated monocarboxylic acids such as acrylic acid, methacrylic acid, crotonic acid, ⁇ -chloroacrylic acid, ethacrylic acid, cinnamic acid; maleic acid, anhydrous Unsaturated dicarboxylic acids (anhydrides) such as maleic acid, fumaric acid, itaconic acid, itaconic anhydride, citraconic acid, citraconic anhydride, mesaconic acid; Examples include 2- (meth) acryloyloxyethyl hexahydrophthalic acid, 2-methacryloyloxyethyl 2-hydroxypropyl phthalate, 2-acryloyloxyethyl 2-hydroxyethyl phthalic acid, and the like. These ethylenically unsaturated monomers having a carboxyl group can be used alone or in admixture of two or more.
- hydroxyl group-containing unsaturated monomer examples include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, and 4-hydroxybutyl (meth).
- unsaturated monomers other than those described above include styrene, ⁇ -methylstyrene, o-vinyltoluene, m-vinyltoluene, p-vinyltoluene, o-chlorostyrene, m-chlorostyrene, p-chlorostyrene, Aromatic vinyl compounds such as p-methoxystyrene; methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, i-propyl (meth) acrylate, n-butyl (meth) acrylate, i-butyl (Meth) acrylate, sec-butyl (meth) acrylate, t-butyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, benzyl (meth) acrylate, paracumylphenoxyethylene glycol
- a polymer in which an unsaturated double bond is further introduced into the side chain of the copolymer is also useful.
- an acrylate having an alcoholic hydroxyl group such as hydroxyethyl acrylate in the maleic anhydride portion of a copolymer with styrene, vinylphenol, acrylic acid, acrylic ester, acrylamide, or the like copolymerizable with maleic anhydride
- Acrylic acid is added to the hydroxyl group of a compound obtained by reacting an acrylate having an epoxy group, such as glycidyl methacrylate, and a copolymer of acrylic acid or an acrylate ester having an alcoholic hydroxyl group such as hydroxyethyl acrylate. Examples thereof include reacted compounds.
- urethane resin, polyamide, polyimide resin, polyester resin commercially available ACA-200M (manufactured by Daicel), ORGA-3060 (manufactured by Osaka Organic Chemical), AX3-BNX02 (manufactured by Nippon Shokubai), UXE-3024 (manufactured by Nippon Kayaku) ), UXE-3000 (made by Nippon Kayaku), ZGA-287H (made by Nippon Kayaku), TCR-1338H (made by Nippon Kayaku), ZXR-1722H (made by Nippon Kayaku), ZFR-1401H (made by Nippon Kayaku) ZCR-1642 (manufactured by Nippon Kayaku Co., Ltd.) can also be used.
- a dispersant or a dispersion aid is used when dispersing a pigment.
- examples thereof include a pigment-based dispersant, a resin-based dispersant, and a surfactant that have good adsorptivity to pigments.
- a pigment-based dispersant a method of mixing a sulfonated pigment or a metal salt thereof as described in Patent Document 4 with a pigment, a method of mixing a substituted aminomethyl derivative, and the like are known as known techniques.
- Some resin dispersants are nonpolar nonionic, but polymer resins having an acid value, an amine value, etc.
- pigment adsorption is common, such as acrylic resins, polyurethane resins, and polycarboxylic acids. , Polyamide resin, polyester resin and the like. Specific examples thereof include ED211 (manufactured by Enomoto Kasei), Ajisper PB821 (manufactured by Ajinomoto Fine Techno), Solsperse 71000 (manufactured by Avicia), and the like.
- a polymerization initiator When producing the binder resin (copolymer) used in the present invention, a polymerization initiator is used.
- the polymerization initiator used when synthesizing the copolymer are, for example, ⁇ , ⁇ ′-azobis (isobutyronitrile), 2,2′-azobis (2-methylbutyronitrile). ), T-butyl peroctoate, di-t-butyl peroxide benzoylmethyl ethyl ketone peroxide, and the like.
- the use ratio of the polymerization initiator is 0.01 to 25 parts by mass with respect to the total of all monomers used for the synthesis of the copolymer.
- the reaction temperature when synthesizing the copolymer is preferably 50 to 120 ° C., particularly preferably 80 to 100 ° C.
- the reaction time is preferably 1 to 60 hours, more preferably 3 to 20 hours.
- the preferred acid value of the copolymer is 10 to 300 (mgKOH / g), and the preferred hydroxyl value is 10 to 200 (mgKOH / g). When the acid value or hydroxyl value is 10 or less, developability is lowered.
- the weight average molecular weight (Mw) of the copolymer is preferably from 2,000 to 400,000, more preferably from 3,000 to 100,000. When the weight average molecular weight is 2000 or less, or 400000 or more, sensitivity, developability and the like are lowered.
- the binder resins can be used alone or in admixture of two or more.
- the content of the binder resin in the present invention is usually 0.5 to 99 parts by mass, preferably 5 to 50 parts by mass with respect to 100 parts by mass of the total solid content of the colored resin composition. In this case, when the content of the binder resin is less than 0.5 parts by mass, the alkali developability is deteriorated, and problems such as background contamination and film residue in a region other than the part where pixels are formed may occur.
- the curing agent used in the present invention includes a photopolymerization monomer in the case of radical polymerization, an epoxy resin in the case of ion curing, and a melamine curing agent.
- a photopolymerization monomer in the case of radical polymerization
- an epoxy resin in the case of ion curing
- a melamine curing agent include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethyleneglycol (Meth) acrylate, tetraethylene glycol (meth) acrylate, trimethylolpropane tri (meth) acrylate, pentaerythritol di (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol
- an epoxy resin represented by the following formula (3) having a glycidyl group G is particularly preferable because of improving solvent resistance.
- R 1c to R 19c are each independently a hydrogen atom, a C1-C12 alkyl group, a C1-C12 alkoxy group, or a halogen atom, and among them, a hydrogen atom, a methyl group, an ethyl group, or a methoxy group Any of the groups is preferable, and R 1c to R 16c are particularly preferably hydrogen atoms, and R 17c , R 18c and R 19c are particularly preferably methyl groups.
- the epoxy resin of the above formula (3) is, for example, 1- [4- (1-hydroxy-1-methyl-ethyl) -phenyl] ethanone and phenols (unsubstituted or C1-C12 alkyl group as a substituent, C1-C12 alkoxy group, phenol resin obtained by reaction with halogen atom), and reaction with epihalohydrin (at least one selected from epichlorohydrin and epibromohydrin).
- Commercially available products include VG-3101L manufactured by Printec, Nippon Kayaku products NC-6000, NC-6300, and the like.
- the content thereof is 1 to 80 parts by mass, preferably 5 to 40 parts by mass with respect to 100 parts by mass of the total solid content of the colored resin composition.
- the amount is less than this range, the effects such as solvent resistance are lowered, and when the amount is too large, developability is lowered and development may not be possible.
- the curing accelerator used in the present invention requires a reaction catalyst that promotes ion curing.
- a reaction catalyst that promotes ion curing.
- nitrogen-containing heterocyclic compounds such as primary to tertiary amines and imidazole, and photoacid generation that generates an acid.
- examples thereof include an agent, a thermal acid generator, a resin having an acid anhydride or carboxylic acid, an acrylate monomer, and an initiator.
- the resin, monomer and the like having carboxylic acid are as described above, and the polymerization initiator will be described later.
- amines as the above-mentioned curing accelerator include triethylamine, triethanolamine, Kayahard AA, Kayabond C-100, Kayabond C-200S, Kayabond C-300S, and the like.
- imidazole include Shikoku Kasei Kogyo Co., Ltd.
- Cureazole 2MZ-H Curesol C11Z, Cureazole C17Z, Cureazole 1,2DMZ, Curesol 2E4MZ, Curesol 2PZ, Cureazole 2P4MZ, Cureazole 1B2MZ, Curesol 1B2PZ, Cureazole 2MZ-CN, Cureazole 2MZ-CN, CN, Curezol 2E4MZ-CN, Curezol 2PZ-CN, Curezol C11Z-CNS, Curezol 2PZCNS-PW, Curezol 2MZ-A, Curezol C11Z-A, Curezol 2E4MZ-A, Curezol2MA-OK, Curezol-2PZ2OKZ PW, Curezol 2P4MHZ-PW, Curezol TBZ, Curezol 2PZL-T, Ki Azole VT, Curesol SFZ, and the like.
- the acid anhydride examples include maleic anhydride, succinic anhydride, phthalic anhydride, tetrahydrophthalic anhydride, pyromellitic anhydride, biphenyltetracarboxylic dianhydride, Kayahard MCD of Nippon Kayaku products, and the like.
- imidazole curing accelerators are preferred, and Curazole 1B2PZ, Curazole 2PZ, Curazole 1B2MZ, and Curazole 2E4MZ are desirable from the viewpoint of reactivity.
- the content thereof is 0.01 to 50 parts by mass, preferably 0.05 to 20 parts by mass with respect to 100 parts by mass of the total solid content of the colored resin composition. When the amount is too small, the curability is lowered, and when too much, the storage stability is lowered.
- the pigment that can be used in combination with the colored resin composition of the present invention preferably has spectral characteristics suitable for a color filter, and can be appropriately selected from dyes, organic pigments, and inorganic pigments. It can also be used in combination of more than one species.
- the content thereof is 0 to 60 parts by mass, preferably 5 to 30 parts by mass with respect to 100 parts by mass of the total solid content of the colored resin composition.
- the organic pigment that can be used in the present invention is not particularly limited.
- anthraquinone, phthalocyanine, triphenylmethane, benzimidazolone, quinacridone, azochelate, azo, isoindoline, and isoindolinone Pyranthrone, indanthrone, anthrapyrimidine, dibromoanthanthrone, flavanthrone, perylene, perinone, quinophthalone, thioindigo, dioxazine, quinacridone, xanthene, and other pigments; acidic dyes, basic Examples include lake pigments and dyed lake pigments obtained by insolubilizing dyes, direct dyes, and the like with the respective precipitation agents.
- the color index for example, Pigment Blue 1, 1: 2, 9, 14, 15, 15: 1, 15: 2, 15: 3, 15: 4, 15: 6, 16, 17, 19 25, 27, 28, 29, 33, 35, 36, 56, 56: 1, 60, 61, 61: 1, 62, 63, 66, 67, 68, 71, 72, 73, 74, 75, 76 78, 79; Pigment Violet 1, 1: 1, 2, 2: 2, 3, 3: 1, 3: 3, 5, 5: 1, 14, 15, 16, 19, 23, 25, 27, 29 31, 32, 37, 39, 42, 44, 47, 49, 50; Pigment Violet 3, 4, 27, 39, and the like.
- Pigment Blue 15: 6 and Pigment Violet 23 are more preferable because of good hue and resistance.
- the inorganic pigment that can be used in combination with the present invention is not particularly limited.
- composite metal oxide pigments, carbon black, black low-order titanium oxide, titanium oxide, barium sulfate, zinc white, lead sulfate, yellow lead, red rose, ultramarine blue , Bitumen, chromium oxide, antimony white, iron black, red lead, zinc sulfide, cadmium yellow, cadmium red, zinc, manganese purple, cobalt purple, barium sulfate, magnesium carbonate and other metal oxides, metal sulfides, sulfates, Metal hydroxide, metal carbonate, etc. are mentioned.
- the dye that can be used in the present invention is not particularly limited, and examples thereof include acid dyes, basic dyes, direct dyes, sulfur dyes, vat dyes, naphthol dyes, reactive dyes, and disperse dyes. Among them, any dye that is soluble in an organic solvent may be used, but even a dye that is insoluble in an organic solvent can be appropriately used by forming a dispersion.
- dyes that are insoluble in organic solvents are well-known formulations.
- organic amine compounds for example, n-propylamine, ethylhexylpropionate amine, etc.
- amine salt dyes It is known to modify or to make a dye having a sulfonamide group by reacting the sulfonic acid group with the same organic amine compound.
- amine-modified dyes can also be used in the colored resin composition of the present invention.
- the specific dye is a color index, for example, Solvent Blue 2, 3, 4, 5, 6, 23, 35, 36, 37, 38, 43, 48, 58, 59, 67, 70, 78, 98, 102, 104; Basic Blue 7; Acid Blue 80, 83, 90;
- violet dyes include Solvent Violet 8, 9; Violet 4, 5, 14; Basic Violet 10 and the like.
- the photopolymerization initiator to be added to the colored resin composition of the present invention used in the photographic method those having sufficient sensitivity to ultraviolet rays emitted from an ultra-high pressure mercury lamp generally used as an exposure light source are preferable.
- examples thereof include a polymerizable photo radical initiator, an ion curable photo acid generator or a photo base generator.
- a component of a polymerization accelerator called a sensitizer that can be cured with less exposure energy can be used in combination.
- the photopolymerization initiator that can be used is not particularly limited.
- benzyl benzoin ether
- benzoin butyl ether benzoin propyl ether
- benzophenone 3,3′-dimethyl-4-methoxybenzophenone
- benzoylbenzoic acid benzoylbenzoic acid.
- Acid esterified product 4-benzoyl-4'-methyldiphenyl sulfide, benzyldimethyl ketal, 2-butoxyethyl-4-methylaminobenzoate, chlorothioxanthone, methylthioxanthone, ethylthioxanthone, isopropylthioxanthone, dimethylthioxanthone, diethylthioxanthone, diisopropyl Thioxanthone, dimethylaminomethylbenzoate, 1- (4-dodecylphenyl) -2-hydroxy-2-methylpropan-1-one 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, 1- (4-isopropylphenyl) -2-hydroxy-2-methylpropan-1-one, methylbenzoyl formate 2-methyl-1- (4-methylthiophenyl) -2-morpholinopropan-1-one, 2-benz
- thermosetting resin composition used in an inkjet method or the like
- a thermal polymerization initiator is generally used, but a photopolymerization initiator may be used in combination as necessary.
- the thermal polymerization initiator include azo compounds and organic peroxides, such as 2,2′-azobisisobutyronitrile, 2,2′-azobis (2,4-dimethylvaleronitrile), Examples include 2,2′-azobis (2-methylbutyronitrile), di-t-butyl peroxide, dibenzoyl peroxide, cumylperoxyneodecanoate, and the like.
- polymerization initiators can be used alone or in combination of two or more as required.
- the content thereof is 0.5 to 50 parts by mass, preferably 1 to 25 parts by mass with respect to 100 parts by mass of the total solid content of the colored resin composition.
- the organic solvent used in the present invention has sufficient dissolving power with respect to the binder resin, photopolymerizable monomer, photopolymerization initiator, and the like, which are components of the colored resin composition, and is a monofunctional compound used for the synthesis of the binder resin. Those having sufficient dissolving power for monomers, polymerization initiators and the like can be used. Moreover, what can maintain dispersion stability can also be used when preparing a pigment dispersion.
- the organic solvent used in the present invention is not particularly limited as long as it can be used.
- Specific examples include benzenes such as benzene, toluene and xylene; cellosolves such as methyl cellosolve, ethyl cellosolve and butyl cellosolve; methyl cellosolve acetate.
- Cellosolve acetates such as ethyl cellosolve acetate and butyl cellosolve acetate; propylene glycol monoalkyl ether acetates such as propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate and propylene glycol monobutyl ether acetate; methyl methoxypropionate, methoxypropion Propionates such as ethyl acrylate, methyl ethoxypropionate, ethyl ethoxypropionate; methyl lactate, milk Lactic acid esters such as ethyl and butyl lactate; Diethylene glycols such as diethylene glycol monomethyl ether and diethylene glycol monoethyl ether; Acetic esters such as methyl acetate, ethyl acetate and butyl acetate; Ethers such as dimethyl ether, diethyl ether, tetrahydrofuran and
- the amount of the organic solvent used is preferably 40 to 10,000 parts by mass, more preferably 100 to 1000 parts by mass with respect to 100 parts by mass of the total solid content of the colored resin composition.
- the colored resin composition of the present invention is produced by mixing and stirring the binder resin, curing agent, photopolymerization initiator, specific dye-based color material compound, organic solvent, and the like with a dissolver, a homomixer, or the like.
- other pigments and dyes can be added as necessary, but if the pigment or dye has low solubility, a dispersion is obtained by a dispersing machine such as a paint shaker using an appropriate dispersant, In addition to the colored resin composition, it is mixed.
- the colored resin composition of the present invention may further contain various additives such as fillers, surfactants, thermal polymerization inhibitors, adhesion promoters, antioxidants, ultraviolet absorbers, anti-aggregation agents, and the like. Can be added.
- the colored resin composition of the present invention can be microfiltered with a filter or the like in order to remove foreign matters after the preparation.
- the colored resin composition of the present invention is formed on a substrate such as a glass substrate or a silicon substrate by a method such as a spin coating method, a roll coating method, a slit and spin method, a die coating method, or a bar coating method.
- the coating is applied to 1 to 20 ⁇ m, preferably 0.5 to 5 ⁇ m, and, if necessary, in a vacuum chamber, the drying conditions are, for example, a temperature of 23 to 150 ° C. and a time of 1 to 60 minutes, more preferably a temperature.
- the film is dried under reduced pressure at 60 to 120 ° C.
- a general photolithography method is used to irradiate radiation (for example, an electron beam or ultraviolet rays, preferably ultraviolet rays) through a predetermined mask pattern, and a surfactant aqueous solution, an alkaline aqueous solution, or a surfactant and an alkaline agent.
- radiation for example, an electron beam or ultraviolet rays, preferably ultraviolet rays
- a surfactant aqueous solution for example, an electron beam or ultraviolet rays, preferably ultraviolet rays
- an alkaline aqueous solution for example, an alkaline aqueous solution
- a surfactant and an alkaline agent for example, an alkaline aqueous solution.
- the development method include a dipping method, a spray method, a shower method, a paddle method, and an ultrasonic development method, and any of these methods may be combined.
- the post-baking treatment is performed, for example, at a temperature of 130 to 300 ° C. for 1 to 120 minutes, more preferably at a temperature of 150 to 250 ° C. for 1 to 30 minutes.
- a pixel comprising the colored cured film of the present invention.
- polyoxyethylene alkyl ether, polyoxyalkylene alkyl ether, etc. can be used as the surfactant.
- the alkali agent sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, diethanolamine, tetramethylammonium hydroxide, or the like is used.
- an aqueous solution containing both an alkali agent and a surfactant is usually carried out at a processing temperature of 10 to 50 ° C., preferably 20 to 40 ° C., for a processing time of usually 30 to 600 seconds, preferably 30 to 120 seconds.
- the cured product of the colored resin composition of the present invention is useful as a color filter suitable for a liquid crystal display device, an organic EL display, a solid-state image sensor used in a digital camera, etc., and the color filter is as described above. It has the patterned pixel which consists of hardened
- the liquid crystal display device is manufactured with a structure in which, for example, a backlight, a polarizing film, a display electrode, a liquid crystal, an alignment film, a common electrode, a color filter of the present invention, a polarizing film, and the like are laminated in this order.
- the organic EL display is manufactured by forming the color filter of the present invention on either the upper or lower side of the multilayer organic light emitting device.
- the solid-state imaging device is manufactured, for example, by providing the color filter layer of the present invention on a silicon wafer provided with transfer electrodes and photodiodes, and then laminating microlenses.
- Spectral transmittance characteristics were measured with a spectrophotometer “Shimadzu UV-3150”, chromaticity in an XYZ color system was calculated, and the heat resistance and contrast of the colored body were evaluated.
- Synthesis example 1 In a 100 ml beaker, 1 g of rhodamine B (manufactured by Tokyo Chemical Industry Co., Ltd.) of the following formula (101) and 20 g of water were charged and stirred at room temperature for 30 minutes. A solution prepared by dissolving 1 g of a cesium salt of tristrifluoromethanesulfonylmethide (TFSM) in 1 g of DMF was added dropwise thereto and stirred for 3 hours. The precipitated dye was collected by filtration, washed with water and dried to obtain 0.7 g of rhodamine B TFSM salt (Compound No. 1). Maximum absorption wavelength: 560 nm (cyclohexanone)
- Synthesis example 2 In a 100 ml beaker, 1 g of rhodamine B of the above formula (101) and 20 g of water were charged and stirred at room temperature for 30 minutes. To this was added dropwise a solution of 1 g of potassium salt of bistrifluoromethanesulfonylimide (TFSI) in 1 g of DMF, and the mixture was stirred for 3 hours. The precipitated dye was collected by filtration, washed with water and dried to obtain 0.7 g of rhodamine B TFSI salt (Compound No. 2). Maximum absorption wavelength: 560 nm (cyclohexanone)
- Synthesis example 3 In a 2000 ml beaker, 4 g of rhodamine B of the above formula (101) (manufactured by Tokyo Chemical Industry Co., Ltd.) and 750 g of water were charged and stirred at room temperature for 30 minutes. A solution prepared by dissolving 1.5 g of a lithium salt of trifluoromethylsulfonic acid in 10 g of water was added dropwise thereto and stirred for 3 hours. The precipitated dye was collected by filtration, washed with water and dried to obtain 3.5 g of rhodamine B trifluorosulfonate salt (Compound No. 3). Maximum absorption wavelength: 560 nm (cyclohexanone)
- Synthesis example 4 2 parts of Basic Blue 7 of the following formula (100) (manufactured by Tokyo Chemical Industry, decomposition temperature: 217 ° C.) is dissolved in 150 g of water, and 2.1 g of cesium salt of tristrifluoromethanesulfonylmethide is dissolved in 30 g of acetonitrile while stirring. The solution was added. After stirring for 3 hours, the precipitated crystals were collected by filtration, washed with water, and dried to obtain 1.5 g of TFSM salt of Basic Blue 7 (Compound No. 2-1). Maximum absorption wavelength 610nm (cyclohexanone)
- Synthesis example 5 2 parts of Basic Blue 7 of the above formula (100) was dissolved in 150 g of water, and a solution in which 1.2 g of potassium salt of bistrifluoromethanesulfonylimide was dissolved in 10 parts of water was added while stirring. After stirring for 3 hours, the precipitated crystals were collected by filtration, washed with water and dried to obtain 0.7 g of TFSI salt of Basic Blue 7 (Compound No. 2-2). Maximum absorption wavelength 610nm (cyclohexanone)
- Synthesis Example 6 A solution obtained by dissolving 2 g of Basic Blue 7 of the above formula (100) (manufactured by Tokyo Chemical Industry, decomposition temperature: 217 ° C.) in 150 g of water and dissolving 0.8 g of lithium salt of trifluoromethanesulfonic acid in 10 g of water while stirring. was added. After stirring for 3 hours, the precipitated crystals were collected by filtration, washed with water and dried to obtain 0.8 g of Basic Blue 7 trifluorosulfonate salt (Compound No. 2-3). Maximum absorption wavelength 610nm (cyclohexanone)
- Synthesis example 7 (1) 1-bromonaphthalene (10.0 g, 0.05 mol), 2-methylcyclohexylamine (6.0 g, 0.05 mol), sodium t-butoxide (6.5 g, 0.07 mol), Pd 2 (dba ) 3 (0.003 eq.) And BINAP (0.008 eq.) Were dissolved in 120 ml of toluene and stirred at 80 ° C. for 3 hours. Then, it returned to room temperature, the reaction liquid was column-filtered, and 10.5g (91%) of said Formula (102) was obtained by depressurizingly distilling a filtrate.
- Synthesis Example 8 (2) Compound 102 obtained in Synthesis Example 7 (9.3 g, 0.04 mol), 4,4′-bis (diethylamino) benzophenone (11.50 g, 0.04 mol), phosphorus oxychloride (6.0 g, 0.04 mol) was dissolved in 50 ml of toluene and reacted at 60 ° C. for 3 hours. After returning to room temperature, water was added for liquid separation, and the organic layer was concentrated under reduced pressure to obtain 22.8 g (98%) of the above formula (103).
- Synthesis Example 9 (3) Compound 103 (3.0 g, 0.005 mol) obtained in Synthesis Example 8 was dissolved in a mixed solution of 10 ml of water and 40 ml of methanol, and tristrifluoromethanesulfonyl was stirred into a mixed solution of 3 ml of DMF and 20 ml of methanol. A solution in which 2.8 g of the cesium salt of methide was dissolved was added. After 3 hours of heating and stirring at 60 ° C., the precipitated crystals were collected by filtration, washed with water and dried. As a result, 3.2 g of 2-20 was obtained. Maximum absorption wavelength 602nm (cyclohexanone)
- Synthesis Example 11 (Preparation of binder resin (copolymer)) A 500 ml four-necked flask was charged with 160 g of methyl ethyl ketone, 10 g of methacrylic acid, 33 g of benzyl methacrylate, and 1 g of ⁇ , ⁇ ′-azobis (isobutyronitrile), and nitrogen gas was allowed to flow into the flask for 30 minutes while stirring. Thereafter, the temperature was raised to 80 ° C., and the mixture was stirred at 80 to 85 ° C. for 4 hours. After completion of the reaction, the reaction mixture was cooled to room temperature to obtain a colorless, transparent and uniform copolymer solution.
- copolymer (A) This was precipitated in a 1: 1 mixed solution of isopropyl alcohol and water, filtered, and the solid content was taken out and dried to obtain a copolymer (A).
- the resulting copolymer (A) had a polystyrene equivalent weight average molecular weight of 18,000 and an acid value of 152.
- Example 1 5.5 g of copolymer (A) as binder resin, 5.5 g of Kayrad DPHA (manufactured by Nippon Kayaku) as photopolymerizable monomer, 1.5 g of Irgacure 907 (manufactured by BASF Japan) as photopolymerization initiator, Irgacure OXE -02 (manufactured by BASF Japan) and Kayacure DETX-S (manufactured by Nippon Kayaku) 0.6 g. 0.3 g of Compound No. 1 of Synthesis Example 4
- the colored resin composition of the present invention was obtained by mixing 0.3 g of 2-1 and 20 g of cyclohexanone as a solvent and 8.6 g of propylene glycol monomethyl ether acetate.
- Example 2 Compound No. 4 of Synthesis Example 4 2-1, compound no. A colored resin composition was obtained with the same composition as in Example 1 except that the composition was changed to 2-2.
- Example 3 Compound No. 4 of Synthesis Example 4 2-1 was synthesized according to Compound No. 6 of Synthesis Example 6.
- a colored resin composition was obtained with the same composition as in Example 1 except that the composition was changed to 2-3.
- Example 4 Compound No. 1 of Synthesis Example 1 1 was synthesized as Compound No. 1 of Synthesis Example 2. A colored resin composition was obtained as the same composition as in Example 1 except that it was changed to 2.
- Example 5 Compound No. 1 of Synthesis Example 1 1 is compound No. 1 of Synthesis Example 3. A colored resin composition was obtained as the same composition as in Example 1 except that the composition was changed to 3.
- the blue pigment dispersion liquid 1 was obtained by processing for 60 minutes with a paint shaker and filtering. 22 g of blue pigment dispersion 1 was added to Example 1 to obtain the colored resin composition of the present invention.
- Example 7 Compound No. 4 of Synthesis Example 4 2-1, compound no. A colored resin composition was obtained with the same composition as in Example 6 except that the composition was changed to 2-2.
- Example 8 Compound No. 4 of Synthesis Example 4 2-1 was synthesized according to Compound No. 6 of Synthesis Example 6. A colored resin composition was obtained as the same composition as in Example 6 except for changing to 2-3.
- Example 9 Compound No. 1 of Synthesis Example 1 1 is compound No. 1 of Synthesis Example 3. A colored resin composition was obtained as the same composition as in Example 6 except that the composition was changed to 3.
- Example 10 Compound No. 4 of Synthesis Example 4 2-1, compound no. A colored resin composition was obtained with the same composition as in Example 6 except that it was changed to 2-20.
- Example 11 Example 6 except that 2.4 g of the binder copolymer (A) is used, 3.0 g of the epoxy resin 105 of Synthesis Example 10 is used as a curing agent, and 0.1 g of 1B2PZ (manufactured by Shikoku Chemicals) is used as a curing accelerator. A colored resin composition was obtained as the same composition.
- Example 12 Example 1 except that 2.4 g of the binder copolymer (A) is used, 3.0 g of the epoxy resin 105 of Synthesis Example 10 is used as a curing agent, and 0.1 g of 1B2PZ (manufactured by Shikoku Chemicals) is used as a curing accelerator. A colored resin composition was obtained as the same composition.
- Comparative Example 1 Compound No. of Synthesis Example 4 described in Example 1 was obtained.
- Compound No. 2-1 of Synthesis Example 1 was used without using 2-1
- a colored resin composition was obtained as the same composition as in Example 1 except that 1 was 0.6 g.
- Comparative Example 2 Compound No. 1 of Synthesis Example 1 1 was synthesized as Compound No. 1 of Synthesis Example 2. A colored resin composition was obtained as the same composition as Comparative Example 1 except that the composition was changed to 2.
- Comparative Example 3 Compound No. 1 of Synthesis Example 1 1 is compound No. 1 of Synthesis Example 3. A colored resin composition was obtained as the same composition as Comparative Example 1 except that the composition was changed to 3.
- Comparative Example 4 Compound No. 1 of Synthesis Example 1 A colored resin composition was obtained as the same composition as Comparative Example 1 except that 1 was changed to Rhodamine B.
- Comparative Example 5 Compound No. 1 of Synthesis Example 1 A colored resin composition was obtained as the same composition as Comparative Example 1 except that 1 was changed to Basic Blue 7.
- the colored resin compositions (Examples 1 to 12) obtained above were applied onto the substrate, pre-baked under conditions of 80 ° C. ⁇ 100 seconds, and after curing by exposure through a mask, containing a surfactant
- the resultant was developed with an alkaline aqueous solution, rinsed with water, and then heated at 200 ° C. to obtain a colored pattern.
- the obtained pattern had a resolution of 5 ⁇ m square in line and space, and no residue or peeling of pixels was confirmed. Therefore, it was found that the present invention can also be applied to color filter applications requiring high resolution for solid-state imaging devices.
- the substrate for evaluation of spectral characteristics and heat resistance was prepared by applying each composition to a glass substrate in the same manner as described above, exposing the entire surface, and treating the substrate at 200 ° C. for 5 minutes. ,Created. In both cases, a color filter substrate having clear color characteristics was obtained. Thereafter, each evaluation was performed as described below.
- the heat resistance was evaluated by measuring the spectral transmittance of the evaluation substrate before and after the treatment at 200 ° C. for 120 minutes and calculating the color difference ( ⁇ Eab) before and after the heat treatment.
- Contrast was measured with a contrast meter (CT-1 manufactured by Osaka Co., Ltd.) using the evaluation substrate, and the luminance value (cd / cm 2 ) when the two polarizing plates were parallel to each other (cd / cm 2 ). cm 2 ) ratio (luminance value when parallel / luminance value when orthogonal).
- Solvent resistance is determined by immersing in N-methylpyrrolidone, which is used as a solvent for the liquid crystal alignment film material, to confirm the presence or absence of spectral change.
- the spectral transmittance of the evaluation substrate is measured, and 30 seconds for N-methylpyrrolidone. Comparison was made with the spectral transmittance after immersion for 1 minute or 3 minutes, and evaluation was made visually or by spectral color difference.
- Table 3 shows the results of heat resistance
- Table 4 shows the results of contrast
- Table 5 shows the results of solvent resistance.
- Examples 1 to 12 of the present invention show significantly better results than Comparative Examples 4 and 5 which are conventional dyes, and the resistance of the colorant compound of the present invention is excellent. It can be seen that it is greatly improved.
- Examples 6 to 11 in which the pigment was mixed the state of the dye-based color of the present invention was excellent, particularly without insolubles being deposited, despite being mixed with the pigment. It can be said that it suggests a wide range of applicability of wood compounds. From the evaluation results of the contrast in Table 4, all of Examples 1 to 11 showed significantly better results than the dyes of Comparative Examples 1 to 5 and the pigment of 6.
- the colored resin composition of the present invention using a specific dye-based color material compound has a clear color characteristic and excellent durability, and has a high quality and reliability that cannot be obtained with conventional products.
- a high color filter pixel can be obtained.
- it can be used by being well mixed with pigments depending on the application, and shows wide applicability.
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Abstract
Description
高信頼性の必要なカラーフィルターにおいて様々な耐性に優れた色材化合物を含む着色樹脂組成物が必要とされているが、ほとんど実用化されていないのが現状である。従って、次世代として耐性に優れた高品位なカラーフィルターが求められている。
(1) 下記式(1)で表される色材化合物、式(2)で表される色材化合物、バインダー樹脂、溶剤、光重合開始剤、硬化剤及び硬化促進剤を含有するカラーフィルター用着色樹脂組成物
(2)式(1)及び式(2)中のZ-が各々独立にトリストリフルオロメタンスルホニルメチドアニオン、ビストリフルオロメタンスルホニルイミドアニオンまたはトリフルオロメタンスルホネートである(1)に記載の色材化合物を含む着色樹脂組成物、
(3)下記式(3)で表されるエポキシ樹脂を硬化剤として含有する(1)又は(2)に記載の着色樹脂組成物
(4)金属フタロシアニン顔料を含む(1)乃至(3)のいずれか一つに記載の着色樹脂組成物、
(5)(1)乃至(4)のいずれか一つに記載の着色樹脂組成物を用い、パターニングされてなるカラーフィルター用着色硬化膜、
(6)(5)に記載のカラーフィルター用着色硬化膜からなるカラーフィルター、
(7)(6)に記載のカラーフィルターを装着してなる表示装置、
(8)(6)に記載のカラーフィルターを装着してなる固体撮像素子、
に関する。
100mlビーカーに、下記式(101)のローダミンB(東京化成工業製)1g、水20gを仕込み、常温で30分間攪拌した。これにDMF1gにトリストリフルオロメタンスルホニルメチド(TFSM)のセシウム塩1gを溶解させた溶液を滴下し、3時間攪拌した。析出した染料をろ取、水洗、乾燥し、ローダミンBのTFSM塩(化合物No.1)を0.7gを得た。
極大吸収波長:560nm(シクロヘキサノン)
100mlビーカーに、上記式(101)のローダミンB 1g、水20gを仕込み、常温で30分間攪拌した。これにDMF1gにビストリフルオロメタンスルホニルイミド(TFSI)のカリウム塩1gを溶解させた溶液を滴下し、3時間攪拌した。析出した染料をろ取、水洗、乾燥し、ローダミンBのTFSI塩(化合物No.2)を0.7gを得た。
極大吸収波長:560nm(シクロヘキサノン)
2000mlビーカーに、上記式(101)のローダミンB(東京化成工業製)4g、水750gを仕込み、常温で30分間攪拌した。これに水10gにトリフルオロメチルスルホン酸のリチウム塩1.5gを溶解させた溶液を滴下し、3時間攪拌した。析出した染料をろ取、水洗、乾燥し、ローダミンBのトリフルオロスルホネート塩(化合物No.3)を3.5gを得た。
極大吸収波長:560nm(シクロヘキサノン)
下記式(100)のBasic Blue7(東京化成工業製、分解温
度:217℃)2部を水150gに溶解し、攪拌しながら、アセトニトリル30gにトリストリフルオロメタンスルホニルメチドのセシウム塩2.1gを溶解させた溶液を加えた。3時間攪拌した後、析出した結晶をろ取、水洗、乾燥し、Basic Blue7のTFSM塩(化合物No.2-1)を1.5gを得た。
極大吸収波長610nm(シクロヘキサノン)
上記式(100)のBasic Blue7の2部を水150gに溶解し、攪拌しながら、水10部にビストリフルオロメタンスルホニルイミドのカリウム塩1.2gを溶解させた溶液を加えた。3時間攪拌した後、析出した結晶をろ取、水洗、乾燥し、Basic Blue7のTFSI塩(化合物No.2-2)を0.7gを得た。
極大吸収波長610nm(シクロヘキサノン)
上記式(100)のBasic Blue7(東京化成工業製、分解温度:217℃)2gを水150gに溶解し、攪拌しながら、水10gにトリフルオロメタンスルホン酸のリチウム塩0.8gを溶解させた溶液を加えた。3時間攪拌した後、析出した結晶をろ取、水洗、乾燥し、Basic Blue7のトリフルオロスルホネート塩(化合物No.2-3)を0.8gを得た。
極大吸収波長610nm(シクロヘキサノン)
(3)合成例8で得られた化合物103(3.0g、0.005mol)を水10mlとメタノール40mlの混合溶液に溶解し、攪拌しながら、DMF3mlとメタノール20mlの混合溶液にトリストリフルオロメタンスルホニルメチドのセシウム塩2.8gを溶解させた溶液を加えた。3時間、60℃で加熱撹拌した後、析出した結晶をろ取、水洗、乾燥し、化合物No.2-20を3.2gを得た。
極大吸収波長602nm(シクロヘキサノン)
500mlの四つ口フラスコにメチルエチルケトン160g、メタクリル酸10g、ベンジルメタクリレート33g、α,α’-アゾビス(イソブチロニトリル)1gを仕込み、攪拌しながら30分間窒素ガスをフラスコ内に流入した。その後、80℃まで昇温し、80~85℃でそのまま4時間攪拌した。反応終了後、室温まで冷却し、無色透明で均一な共重合体溶液を得た。これをイソプロピルアルコールと水の1:1混合溶液中で沈殿させ、濾過し、固形分を取り出し、乾燥し、共重合体(A)を得た。得られた共重合体(A)のポリスチレン換算重量平均分子量は18000であり、酸価は152であった。
バインダー樹脂として共重合体(A)5.5g、光重合性モノマーとしてカヤラッドDPHA(日本化薬製)5.5g、光重合開始剤としてイルガキュアー907(BASFジャパン製)1.5g、イルガキュアーOXE-02(BASFジャパン製)0.3g及びカヤキュアーDETX-S(日本化薬製)0.6g、合成例1の化合物No.1を0.3g、合成例4の化合物No.2-1を0.3g、溶剤としてシクロヘキサノン20g及びプロピレングリコールモノメチルエーテルアセテート8.6g、それぞれを混合し、本発明の着色樹脂組成物を得た。
合成例4の化合物No.2-1を合成例5の化合物No.2-2に変更する以外は実施例1と同じ組成として、着色樹脂組成物を得た。
合成例4の化合物No.2-1を合成例6の化合物No.2-3に変更する以外は実施例1と同じ組成として、着色樹脂組成物を得た。
合成例1の化合物No.1を合成例2の化合物No.2に変更する以外は実施例1と同じ組成として、着色樹脂組成物を得た。
合成例1の化合物No.1を合成例3の化合物No.3に変更する以外は実施例1と同じ組成として、着色樹脂組成物を得た。
C.I.ピグメントブルー15:6/アジスパーPB821/ソルスパース5000/PGMEA=15.0/6.0/1.0/78.0(質量比)の組成比で混合した後、0.3mmジルコニアビーズ400gを添加し、ペイントシェーカーで60分間処理を行い、ろ過することにより、青色顔料分散液1を得た。実施例1に青色顔料分散液1を22g加えて、本発明の着色樹脂組成物を得た。
合成例4の化合物No.2-1を合成例5の化合物No.2-2に変更する以外は実施例6と同じ組成として、着色樹脂組成物を得た。
合成例4の化合物No.2-1を合成例6の化合物No.2-3に変更する以外は実施例6と同じ組成として、着色樹脂組成物を得た。
合成例1の化合物No.1を合成例3の化合物No.3に変更する以外は実施例6と同じ組成として、着色樹脂組成物を得た。
合成例4の化合物No.2-1を合成例9の化合物No.2-20に変更する以外は実施例6と同じ組成として、着色樹脂組成物を得た。
バインダー共重合体(A)を2.4gとし、硬化剤として合成例10のエポキシ樹脂105を3.0g、硬化促進剤として1B2PZ(四国化成工業製)を0.1g用いる以外は実施例6と同じ組成として、着色樹脂組成物を得た。
バインダー共重合体(A)を2.4gとし、硬化剤として合成例10のエポキシ樹脂105を3.0g、硬化促進剤として1B2PZ(四国化成工業製)を0.1g用いる以外は実施例1と同じ組成として、着色樹脂組成物を得た。
実施例1に記載の合成例4の化合物No.2-1を使用せずに、合成例1の化合物No.1を0.6gとする以外は、実施例1と同じ組成として、着色樹脂組成物を得た。
合成例1の化合物No.1を合成例2の化合物No.2に変更する以外は比較例1と同じ組成として、着色樹脂組成物を得た。
合成例1の化合物No.1を合成例3の化合物No.3に変更する以外は比較例1と同じ組成として、着色樹脂組成物を得た。
合成例1の化合物No.1をローダミンBに変更する以外は比較例1と同じ組成として、着色樹脂組成物を得た。
合成例1の化合物No.1をBasic Blue7に変更する以外は比較例1と同じ組成として、着色樹脂組成物を得た。
合成例1の化合物No.1及び合成例4の化合物No.2-1を使用する以外は、実施例6と同じ組成として、着色樹脂組成物を得た。
合成例1の化合物No.1及び合成例4の化合物No.2-1を、Basic Blue7 0.6gに変更する以外は実施例6と同じ組成として、着色樹脂組成物を得た。
分光特性及び耐熱性の評価用基板は、前記と同様にガラス基板に各組成物を塗布し、全面露光を行い、ポストベーク200℃で5分間処理を行い、作成した。いずれも鮮明な色特性を有するカラーフィルター基板が得られた。その後、以下に記載の通りに各評価を行った。耐熱性は、200℃で120分間処理前後の前記評価基板の分光透過率を測定し、熱処理前後の色差(ΔEab)を算出して評価した。コントラストは、上記評価用基板を用いて、コントラスト計(壷坂電機製CT-1)により、2枚の偏光板の平行時の輝度値(cd/cm2)と直交時の輝度値(cd/cm2)の比(平行時の輝度値/直交時の輝度値)から算出した。溶剤耐性は液晶配向膜の材料の溶剤として使用されるN-メチルピロリドンに浸漬して分光変化の有無を確認するもので、前記評価基板の分光透過率を測定し、N-メチルピロリドンに30秒、1分、3分間浸漬した後の分光透過率と比較し、目視あるいは分光色差によって評価した。以下に、耐熱性の結果を表3、コントラストの結果を表4、溶剤耐性の結果を表5に示す。
Claims (8)
- 下記式(1)で表される色材化合物、式(2)で表される色材化合物、バインダー樹脂、溶剤、光重合開始剤、硬化剤及び硬化促進剤を含有するカラーフィルター用着色樹脂組成物
- 式(1)及び式(2)中のZ-が各々独立にトリストリフルオロメタンスルホニルメチドアニオン、ビストリフルオロメタンスルホニルイミドアニオンまたはトリフルオロメタンスルホネートである請求項1に記載の色材化合物を含む着色樹脂組成物。
- 金属フタロシアニン顔料を含む請求項1乃至3のいずれか一項に記載の着色樹脂組成物。
- 請求項1乃至4のいずれか一つに記載の着色樹脂組成物を用い、パターニングされてなるカラーフィルター用着色硬化膜。
- 請求項5に記載のカラーフィルター用着色硬化膜からなるカラーフィルター。
- 請求項6に記載のカラーフィルターを装着してなる表示装置。
- 請求項6に記載のカラーフィルターを装着してなる固体撮像素子。
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JP2015519411A (ja) * | 2012-03-30 | 2015-07-09 | キュン−イン シンセティック カンパニー リミテッドKyung−In Synthetic Co.,Ltd. | キサンテン系紫色染料化合物、それを含むカラーフィルター用着色樹脂組成物及びそれを利用したカラーフィルター |
JP2014029452A (ja) * | 2012-07-02 | 2014-02-13 | Toyo Ink Sc Holdings Co Ltd | 撮像素子用青色着色組成物、および撮像素子用カラーフィルタ |
JP2016124968A (ja) * | 2014-12-26 | 2016-07-11 | 大日本印刷株式会社 | トリアリールメタン化合物 |
JP2016124979A (ja) * | 2014-12-26 | 2016-07-11 | 大日本印刷株式会社 | 色材分散液、カラーフィルター用着色樹脂組成物、カラーフィルター、液晶表示装置、及び発光表示装置 |
JP2017187540A (ja) * | 2016-04-01 | 2017-10-12 | 東洋インキScホールディングス株式会社 | カラーフィルタ用着色組成物及びカラーフィルタ |
JP2020105272A (ja) * | 2018-12-26 | 2020-07-09 | 日本化薬株式会社 | 着色樹脂組成物 |
JP7145568B2 (ja) | 2018-12-26 | 2022-10-03 | 日本化薬株式会社 | 着色樹脂組成物 |
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JPWO2011158794A1 (ja) | 2013-08-19 |
KR20130048128A (ko) | 2013-05-09 |
SG178427A1 (en) | 2012-03-29 |
CN102472853A (zh) | 2012-05-23 |
TW201213450A (en) | 2012-04-01 |
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