Colored resin composition, colored film and colored dividing wall

Abstract

The present invention is a colored resin composition that contains a coloring material (A) and a resin (B). The resin (B) contains a siloxane resin (B1). The siloxane resin (B1) has a repeating unit represented by formula (1-1) or formula (1-2) and has a double bond equivalent amount of 100-400 g / eq. (In formula (1-1) and formula (1-2), R denotes an organic group containing a methacryloyl group or an acryloyl group. R denotes hydrogen or an alkyl group having 1-6 carbon atoms).　The present invention can provide a colored resin composition which forms a tough film following solidification, exhibits excellent heat resistance and chemical resistance, and has a strong adhesive force to a substrate such as glass. In addition, in a case where a colored film made of a cured product of this colored resin composition is used as a colored dividing wall, it is possible to prevent reflection of light at a display surface, an image can be easily seen, and reflection prevention performance is excellent in the so-called visible light wavelength region.

Description

Colored resin composition, colored film, and colored partition wall

[0001] The present invention relates to a colored resin composition, a colored film, and a colored partition wall, and more particularly to a black colored resin composition having excellent light-shielding properties and suitable for use as a colored partition wall in a self-luminous display.

[0002] Black colored photosensitive compositions with excellent light-shielding properties are widely used industrially. One application is as an infrared light cut filter. For example, Patent Document 1 discloses an invention that provides an infrared light cut filter with a light-shielding film in a solid-state imaging device, thereby providing a light-shielding film that has excellent visible light-shielding properties and further suppresses the occurrence of flare when disposed in the solid-state imaging device.

[0003] The invention of Patent Document 1 is an invention of a light-shielding film that includes at least a black layer, in which the content of black pigment contained in the black layer is 20 to 60 mass % with respect to the total mass of the black layer, and that has a reflectance of 3.0% or less for light of at least one wavelength selected from a wavelength range of 800 to 1,000 nm, and a transmittance of 50% or less for light of wavelengths of 400 to 750 nm.

[0004] The black layer of the light-shielding film is formed using a black layer-forming composition containing a black pigment, a dispersant, and a solvent, and the black layer-forming composition contains -(R １ SiO ３／２ ) n-T unit structure of the organic group, and the like. １ is a functional group typified by a methyl group and a phenyl group.

[0005] WO 2016 / 129381

[0006] However, the polysiloxane resin disclosed above is R １ When R is composed of an alkyl group such as a methyl group, １ However, because it does not form a polymer film with a cross-linking structure, it is difficult to form a strong film even after solidification, and it has poor heat and chemical resistance, and its adhesion to substrates such as glass is weak.

[0007] Also, R １When aryl groups such as phenyl groups are contained in the film, the refractive index of the film increases, which is not a problem when used as a light-shielding film for an infrared light cut filter, but when used as a colored partition wall for a display, there is a problem that the anti-reflection performance in the visible light wavelength range is poor, making the screen difficult to see due to light reflection on the display surface. In particular, there is a problem that the anti-reflection performance is significantly reduced when development is carried out for a long time.

[0008] The present invention is １ The object of the present invention is to provide a colored resin composition that can solve the above-mentioned problems by comprising an organic group containing a specific functional group.

[0009] In order to solve the above problems, the present invention has the following configuration: [1] A colored resin composition containing (A) a colorant and (B) a resin, wherein the (B) resin contains a (B1) siloxane resin, the (B1) siloxane resin has a repeating unit represented by the following formula (1-1) or formula (1-2), and has a double bond equivalent of 100 to 400 g / eq:

[0010]

[0011] (In the above formulas (1-1) and (1-2), R １ represents an organic group containing a methacryloyl group or an acryloyl group. R represents hydrogen or an alkyl group having 1 to 6 carbon atoms.) [2] The siloxane resin (B1) further contains a repeating unit represented by formula (2-1) or formula (2-2), and the repeating unit represented by formula (1-1) or formula (1-2) and the repeating unit represented by formula (2-1) or formula (2-2) are ２９ The colored resin composition according to [1], wherein the ratio of peak areas in a quantitative spectrum by Si-NMR method is 20:80 to 70:30.

[0012]

[0013] (In the above formulas (2-1) and (2-2), R represents hydrogen or an alkyl group having 1 to 6 carbon atoms.) [3] The (B1) siloxane resin is a siloxane resin further containing a repeating unit represented by the following formula (3-1) or formula (3-2):２９ The colored resin composition according to [1] or [2], wherein the content of the repeating unit determined from the peak area of ​​a quantitative spectrum by Si-NMR is 20 mol% or less relative to the silicon atoms in the siloxane resin.

[0014]

[0015] (In the above formulas (3-1) and (3-2), R ２ represents an organic group containing an aryl group. R represents hydrogen or an alkyl group having 1 to 6 carbon atoms.) [4] The colored resin composition according to [1] or [2], wherein the refractive index of the (B1) siloxane resin is 1.44 to 1.50. [5] The colored resin composition according to [1] or [2], wherein the weight-average molecular weight of the (B1) siloxane resin is 2,000 to 20,000. [6] The colored resin composition according to [1] or [2], wherein the (A) colorant is any one of a black organic pigment, a mixed-color organic pigment, and a black inorganic pigment. [7] The colored resin composition according to [6], wherein the average primary particle diameter of the (A) colorant is 10 to 25 nm. [8] The colored resin composition according to [1] or [2], wherein the (B) resin further contains an alkali-soluble resin, and wherein the colored resin composition further contains (C) a polymerizable compound and (D) a photopolymerization initiator. [9] The colored resin composition according to [8], wherein the content of the (B1) siloxane resin is 1 to 60 parts by weight per 100 parts by weight of the total of the (B) resin and the (C) polymerizable compound.

[10] A colored film comprising a cured product of the colored resin composition according to [1] or [2].

[11] The colored film according to

[10] , wherein the reflected chromaticity L* value in SCI mode is 29.5 to 31.8 and the reflected chromaticity L* value in SCE mode is less than 0.3.

[12] A colored partition wall comprising the colored film according to

[10] or

[11] .

[13] A colored film formed on a substrate, wherein the refractive index n １ is 1.55≦n １

[14] An organic EL display device comprising the colored film according to

[10] or

[13] , wherein the colored film has a refractive index of 1.69 or less.

[0016] The colored resin composition of the present invention is represented by R １The crosslinking process forms a tough film, which has the effect of forming a light-shielding film that has excellent heat resistance and chemical resistance and has high adhesion to substrates such as glass.

[0017] Furthermore, the refractive index of the film can be reduced, and there is an effect that a light-shielding film having excellent anti-reflection properties can be formed for use as a colored partition wall in a display.

[0018] The present invention will be described in detail below. The colored resin composition of the present invention is a colored resin composition containing (A) a colorant and (B) a resin, wherein the (B) resin contains a (B1) siloxane resin, the (B1) siloxane resin having a repeating unit represented by the following formula (1-1) or formula (1-2), and a double bond equivalent of 100 to 400 g / eq:

[0019]

[0020] (In the above formulas (1-1) and (1-2), R １ represents an organic group containing a methacryloyl group or an acryloyl group. R represents hydrogen or an alkyl group having 1 to 6 carbon atoms.) The siloxane resin (B1) may form a three-dimensional structure such as a cage structure or a random structure through siloxane bonds.

[0021] The methacryloyl group is CH ２ =C(CH ３ )-C(=O)- structure, and the acryloyl group is a functional group having a CH ２ It is a functional group having the structure =CH-C(=O)-. R １ The organic group may contain an oxetanyl group, which is a functional group having a cyclic ether structure with a saturated four-membered ring containing one oxygen atom. These functional groups are highly polymerizable groups that polymerize with light, heat, or the like, and undergo a crosslinking reaction by ultraviolet irradiation or heat treatment in the presence of an initiator or crosslinking agent, forming a tough siloxane resin film that has a lower refractive index and higher hardness than siloxane resins containing aryl groups such as phenyl groups.

[0022] These functional groups may be the same or different in number, and other functional groups such as hydroxyl groups, amino groups, alkyl groups, thiol groups, and carbonyl groups may also be included.１ The organic group may have a structure in which another silicon atom is incorporated into the organic group. １ Examples of the organic group include organic groups represented by the following chemical formulas:

[0023]

[0024]

[0025]

[0026] Among these, R in the repeating unit represented by the formula (1-1) or (1-2) of the siloxane resin (B1) is １ is preferably a methacryloyl group or an acryloyl group. A film containing a polysiloxane resin having a methacryloyl group or an acryloyl group forms a strong film by reaction with an additive such as a photopolymerization initiator, has improved heat resistance and chemical resistance, and has high adhesion to substrates such as glass, and is effective in maintaining anti-reflection performance without increasing the reflectance of the colored film even after long-term development processing.

[0027] In the colored resin composition of the present invention, the double bond equivalent of the siloxane resin (B1) is 100 to 400 g / eq.

[0028] When the double bond equivalent of the siloxane resin is 400 g / eq or less, the film hardens rapidly upon heat treatment or ultraviolet irradiation, and becomes tough. Therefore, even if the development time is set slightly longer, the (B) resin is not attacked by the developer, and the antireflection performance can be maintained.

[0029] On the other hand, when the double bond equivalent of the siloxane resin is 100 g / eq or more, the occurrence of cracks caused by sudden curing shrinkage of the film itself due to heat treatment or ultraviolet irradiation is suppressed.

[0030] The double bond equivalent is a measure of the amount of double bonds defined by the weight average molecular weight of the siloxane resin divided by the number of double bonds in one molecule of the siloxane resin, and the number of double bonds is determined based on the iodine value measured by the method of JIS K 0070 (established in 1992), and the double bond equivalent can be estimated from this. When the siloxane resin contains multiple components, the iodine value can be determined by separating each component as necessary and measuring the iodine value of each of the separated components.

[0031] The (B1) siloxane resin further contains a repeating unit represented by the formula (2-1) or formula (2-2), and the repeating unit represented by the formula (1-1) or formula (1-2) and the repeating unit represented by the formula (2-1) or formula (2-2) are ２９ It is more preferable that the ratio of the peak areas in the quantitative spectrum by Si-NMR method is 20:80 to 70:30. When the ratio of the repeating units represented by formula (1-1) or formula (1-2) to the repeating units represented by formula (2-1) or formula (2-2) contained in the siloxane resin (B1) is within the above-mentioned preferred range, the film has excellent toughness and maintains anti-reflection performance during long-term development. On the other hand, the stress caused by film curing shrinkage is not increased, and the adhesion of the colored film to the substrate is good. ２９ Quantitative Si-NMR spectroscopy is carried out by concentrating the siloxane resin under a nitrogen stream, dissolving about 140 mg of the resulting siloxane resin concentrate in about 0.65 mL of deuterated chloroform, and analyzing the structure of the siloxane resin using the inverse gate decoupling method.

[0032] In the colored resin composition of the present invention, the (B1) siloxane resin may further contain a repeating unit represented by the formula (3-1) or (3-2). ２９ The content of this structure, determined from the peak area of ​​a quantitative spectrum by Si-NMR, is preferably 20 mol % or less relative to the silicon atoms in the siloxane resin.

[0033] R in the repeating unit represented by formula (3-1) or formula (3-2) ２When a colored resin composition is prepared by replacing the (B) resin with only a siloxane resin having an aryl group such as a phenyl group in the organic group, the L* value of the film obtained from this colored resin composition in SCI mode (a method including specular reflection light) tends to be high by about 1.0 to 3.0, and the antireflection performance tends to be poor as a material used for colored partition walls in displays. Therefore, when R ２ Preferably, the siloxane resin does not contain any repeating units having an aryl group such as a phenyl group, or if it does contain any, the content thereof is at most 20 mol% or less relative to the silicon atoms in the siloxane resin. Examples of the aryl group are not particularly limited, but include phenyl, 1-naphthyl, 2-naphthyl, indenyl, biphenyl, anthryl, and phenanthryl groups. Of these, phenyl groups, which have a low refractive index, are most preferred.

[0034] By adjusting the content to this level, the refractive index of the film of the colored resin composition containing the colorant (A) and the siloxane resin (B1) is relatively reduced, and as a result, it is possible to reduce the L* value in SCI mode by about 0.5 to 1.0. This L* value is an index equivalent to the reflectance Y in the XYZ color system, which is the basis of the CIE standard color system, and the closer the L* value is to 0, the more preferable the low-reflectance, jet-black reflective color tone.

[0035] Specifically, it is preferable that the film made of the cured product of the colored resin composition has a reflected chromaticity L* value in SCI mode of 29.5 to 31.8, and a reflected chromaticity L* value in SCE mode (diffuse reflection chromaticity method) of less than 0.3.

[0036] The refractive index of the (B1) siloxane resin is preferably 1.44 to 1.50, more preferably 1.45 to 1.48, from the viewpoint of the anti-reflection performance of the colored film. The refractive index of the (B) resin other than the (A) colorant and the (B1) siloxane resin is often greater than 1.51, and by setting the refractive index of the (B1) siloxane resin within this range, the refractive index of the colored film can be lowered. The average refractive index n1 of the colored film at wavelengths of 500 nm to 600 nm is 1.55≦n １≦1.69 is preferred, and 1.55≦n １ It is more preferable that the refractive index be less than 1.63. This reduces the difference in refractive index between the colored film and the air or substrate in contact with the colored film, thereby improving the anti-reflection performance of the colored film.

[0037] The weight-average molecular weight of the siloxane resin (B1) is preferably from 2,000 to 20,000 in terms of coatability and developability, and more preferably from 5,000 to 15,000 in terms of the reliability of the colored film. The weight-average molecular weight is a value obtained by analyzing by gel permeation chromatography (GPC) based on JIS K 7252-3 (established in 2008) and converting the value using a calibration curve based on standard polystyrene.

[0038] The method for producing the siloxane resin (B1) is not particularly limited, but examples thereof include a production method in which a trialkoxysilane having a double bond group and a solvent are charged into a flask, an acid catalyst is added dropwise, and the mixture is heated and stirred to cause hydrolysis, and then the mixture is heated and stirred to cause polymerization, and further by-products are distilled out of the reaction system.

[0039] In the colored resin composition of the present invention, the colorant (A) is preferably one or more of a black organic pigment, a mixed-color organic pigment, and a black inorganic pigment from the viewpoint of light-blocking properties and weather resistance. The colorant (A) has a light-blocking function of absorbing incident light and reducing emitted light.

[0040] Examples of black organic pigments include carbon black, acetylene black, graphite, perylene black, aniline black, lactam black, benzofuranone pigments, azomethine pigments, and azo pigments. These may be contained in combination of two or more kinds, or may be coated with a resin. Among these, carbon black and benzofuranone pigments are preferred because they have excellent light-shielding properties and light fastness in the visible light range and can reduce transmitted scattered light.

[0041] Examples of mixed-color organic pigments include those obtained by mixing two or more pigments selected from red, blue, green, purple, yellow, brown, orange, magenta, and cyan to produce a pseudo-black color. Among these, mixed pigments of red and blue pigments are preferred from the viewpoint of achieving both a high OD value and pattern processability. The weight ratio of the red and blue pigments in the mixed pigment is preferably 20 / 80 to 80 / 20, and more preferably 30 / 70 to 70 / 30.

[0042] Specific examples of representative pigments, expressed by Color Index (CI) numbers, include the following: Red pigments include, for example, Pigment Red (hereinafter abbreviated as PR, and only the number is indicated) 9, 48, 97, 122, 123, 144, 149, 166, 168, 177, 179, 180, 192, 209, 215, 216, 217, 220, 223, 224, 226, 227, 228, 240, and 254. Two or more of these pigments may be contained. Blue pigments include, for example, Pigment Blue (hereinafter abbreviated as PB, and only the number is indicated) 15, 15:3, 15:4, 15:6, 22, 60, and 64. Two or more of these pigments may be contained.

[0043] Examples of black inorganic pigments include fine particles of metals such as titanium, copper, iron, manganese, cobalt, chromium, nickel, zinc, calcium, silver, gold, platinum, and palladium, as well as metal oxides, metal composite oxides, metal sulfides, metal nitrides, metal oxynitrides, and metal carbides. Two or more of these may be contained. Among these, titanium carbide, titanium nitride, zirconium nitride, palladium oxide, platinum oxide, gold oxide, and silver oxide are preferred because of their high light-shielding properties.

[0044] Among the above (A) colorants, carbon black and benzofuranone-based pigments are preferred as black organic pigments, and mixed-color organic pigments containing 45 to 65 mass% of a red pigment and 30 to 50% of a blue pigment relative to 100 mass% of the total amount of colorants, from the viewpoints of high light-shielding properties and ease of adjusting the taper angle within a preferred range.

[0045] In the colored resin composition of the present invention, the content of the (A) colorant is preferably 1 to 60% by mass, based on 100% by mass of the total solid content of the colored resin composition. The solid content refers to the solid portion of the colored resin composition excluding volatile substances such as solvents. The solid content can be determined by weighing a solution of the colored resin composition in an aluminum cup, heating it, and weighing the weight remaining in the aluminum cup after evaporating the liquid. By setting the content of the (A) colorant to 1 part by mass or more, the visible light blocking properties of the resulting colored film can be improved. Furthermore, since the (A) colorant is a component that does not shrink upon curing, a certain amount of the (A) colorant reduces film stress and improves adhesion. From this perspective, the content of the (A) colorant is more preferably 10% by mass or more.

[0046] The content of the (A) colorant is preferably 60% by mass or less, and more preferably 40% by mass or less. By setting the content of the (A) colorant to 60% by mass or less, the resin component responsible for the curing reaction is not excessively reduced, and good adhesion of the colored film can be maintained.

[0047] In the colored resin composition of the present invention, the average primary particle diameter of the (A) colorant is preferably 10 to 25 nm. When the average primary particle diameter of the (A) colorant is 10 nm or more, aggregation of fine particles of the (A) colorant is suppressed, while when the average primary particle diameter of the (A) colorant is 25 nm or less, compatibility with the (B) resin results in the formation of a finely textured uneven shape, which suppresses diffuse reflection and exhibits anti-reflection performance. Furthermore, from the viewpoint of storage stability, the average primary particle diameter of the (A) colorant is more preferably 15 nm or more, and more preferably 20 nm or less to obtain high light-blocking performance.

[0048] As a means for adjusting the average primary particle diameter of the (A) colorant to fall within the above range, a method is preferred in which a dispersant having a basic group is used to stably and uniformly disperse the (A) colorant in a fine state in the resin without causing re-aggregation. Specifically, examples of such a method include a method of atomizing the (A) colorant by a salt milling method or the like, or a method of finely dispersing the (A) colorant using a bead mill, which will be described later, to produce a colored resin composition.

[0049] In the present invention, multi-stage dispersion using a bead mill is preferred, and preferably includes a step of dispersing using a bead mill with beads having an average bead diameter greater than 0.1 mmφ, followed by a step of dispersing using a bead mill with beads having an average bead diameter of 0.1 mmφ or less. Dispersing using a bead mill with beads having an average bead diameter greater than 0.1 mmφ can efficiently disintegrate pigments with large crystallite sizes. Subsequent dispersion using a bead mill with fine beads having an average bead diameter of 0.1 mmφ or less reduces the energy applied to the pigment, allowing for fine dispersion while maintaining the pigment's surface activity, thereby suppressing re-aggregation of the pigment in the colored resin composition and achieving a more uniform dispersion. In this case, the bead mill is preferably equipped with a centrifugal separator capable of separating the fine beads from the dispersion. Here, the average bead diameter refers to the number-average value of the equivalent circle diameters of the beads. Specifically, the beads are photographed at 45x magnification using a stereomicroscope, and the longest and shortest diameters of 100 randomly selected beads are measured, the average of which is taken as the equivalent circle diameter, and the number-average value is calculated to determine the bead diameter.

[0050] The average primary particle size can be measured by preparing a dispersion of the (A) colorant using a solvent, air-drying it on a sample stage, and taking photographs of the resulting (A) colorant using an electron microscope at several magnifications of tens of thousands of times, and then simply averaging the measured values. When two or more (A) colorants are included, the particle size distribution based on the number of all (A) colorants contained in the colored resin composition is first determined. Then, assuming that each particle size distribution of the two or more (A) colorants follows a normal distribution, curve fitting is performed using the number of terms of a Gaussian function predicted from the shape of the particle size distribution and the number of peaks, and each distribution function is determined. The average primary particle size of each (A) colorant can be determined from the parameters of the obtained distribution function.

[0051] The colored resin composition of the present invention may contain an alkali-soluble resin as the (B) resin, and the colored resin composition may further contain a (C) polymerizable compound and a (D) photopolymerization initiator. Here, the alkali-soluble resin refers to an alkali-soluble resin other than the (B1) siloxane resin, and examples of such alkali-soluble resins include acrylic resins and polyamide resins. In addition, resins such as vinyl, polyurethane, polyester, and olefin may be added to improve the crack resistance of the partition walls.

[0052] In particular, it is preferable to contain an alkali-soluble acrylic resin derived from acrylic acid or methacrylic acid, which exhibits excellent properties such as photocurability, heat resistance, chemical resistance, etc. Specific examples include resins having a tricyclodecane skeleton or a dicyclopentadiene skeleton, such as tricyclodecanyl (meth)acrylate, tricyclodecane dimethanol di(meth)acrylate, dicyclopentenyl (meth)acrylate, and dicyclopentenyloxyethyl (meth)acrylate.

[0053] In order to obtain appropriate alkaline developability, the alkali-soluble resin is preferably a resin having an acid value of 20 to 200 (mgKOH / g), more preferably a resin having an acid value of 30 to 150 (mgKOH / g). The content of the acrylic-soluble resin is preferably 10% by mass or more and 65% by mass or less, more preferably 15% by mass or more and 60% by mass or less, of the solid content of the colored resin composition.

[0054] Examples of the polymerizable compound (C) include monomers and oligomers of ethylene glycol acrylate, ethylene glycol methacrylate, methylol alkyl acrylate, alkyl diol acrylate, alkyl erythritol acrylate, alkyl erythritol methacrylate, etc. Two or more of these may be contained.

[0055] In particular, polymerizable compounds having a hydroxyl group are preferred. The alkali-soluble resin has a relatively high molecular weight, and its solubility in development, i.e., patterning properties when forming a fine pattern, are somewhat poor, and film residue (development residue) is likely to occur. Hydroxyl groups have a high affinity with alkaline developers, and adding a polymerizable compound having such a hydroxyl group significantly increases the solubility in alkaline developers, allowing the alkaline developers to easily penetrate into the fine details, thereby reducing film residue.

[0056] The content of the (C) polymerizable compound is preferably 5% by mass or more and 40% by mass or less of the solid content of the colored resin composition, and more preferably 10% by mass or more and 30% by mass or less of the solid content. By containing 5% by mass or more of the (C) polymerizable compound, the alkaline developer can penetrate into the fine details, improving the solubility of the alkali-soluble resin. On the other hand, by containing 40% by mass or less of the (C) polymerizable compound, excessive cure shrinkage of double bonds is suppressed, and the occurrence of cracks is suppressed.

[0057] As described above, the colored resin composition of the present invention may contain the alkali-soluble resin or the polymerizable compound (C) as the resin (B) other than the siloxane resin (B1). In this case, the content of the siloxane resin (B1) is preferably 1 to 60 parts by weight, more preferably 2 to 40 parts by weight, relative to 100 parts by weight of the total of the resin (B) and the polymerizable compound (C).

[0058] By including the (B1) siloxane resin in an amount of 1 part by weight or more, more preferably 2 parts by weight or more, relative to 100 parts by weight of the total of the (B) resin and the (C) polymerizable compound, it is possible to form a tough film that has excellent antireflection performance and can maintain the antireflection performance even after a long-term development treatment. On the other hand, by including the (B1) siloxane resin in an amount of 60 parts by weight or less, more preferably 40 parts by weight or less, it is possible to suppress the occurrence of cracks due to developability or cure shrinkage.

[0059] As described above, R in the repeating unit represented by formula (3-1) or formula (3-2) ２The refractive index of the film can be made lower than when the colored resin composition is made by replacing the (B) resin with only a siloxane resin having an aryl group such as a phenyl group in the organic group, and there is an effect that a light-shielding film having excellent antireflection performance can be formed for use as a colored partition wall for a display.

[0060] Examples of the (D) photopolymerization initiator include acetophenone-based, benzoin-based, benzophenone-based, thioxanthone-based, triazine-based, carbazole-based, imidazole-based, oxime-based, borate-based, phosphine-based, quinone-based, and titanocene-based photopolymerization initiators. Two or more of these may be contained. Among them, photopolymerization initiators having photobleachability are preferred from the viewpoint of deep photocurability. A photobleachable photopolymerization initiator is a photopolymerization initiator whose light absorption decreases as the reaction of the double bond progresses by cleavage.

[0061] Examples of the photopolymerization initiator having photobleachability include monoacylphosphine oxide photopolymerization initiators such as benzoyl-diphenylphosphine oxide, bisacylphosphine oxide photopolymerization initiators such as bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide, metallocene (titanocene) photopolymerization initiators such as bis(η5-2,4-cyclopentadiene-1-yl)-bis(2,6-difluoro-3-(1H-pyrrol-1-yl)phenyl)titanium, polysilane photopolymerization initiators such as phenylpolysilane, and O-acyloxime initiators such as ethanone and 1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]ethanone-1-(O-acetyloxime).

[0062] The content of the photopolymerization initiator is preferably 1% by mass or more and 5% by mass or less based on the solid content of the colored resin composition. When the content of the photopolymerization initiator is 1% by mass or more, the variation in film performance such as hardness and heat resistance is reduced. On the other hand, when the content of the photopolymerization initiator is 5% by mass or less, the amount of photopolymerization initiator remaining in the film of the colored resin composition is reduced, and high anti-reflection performance can be maintained.

[0063] In addition, the colored resin composition of the present invention may contain, as appropriate, additives such as solvents, surfactants, dispersants, thermal crosslinking agents, leveling agents, antifouling agents, adhesion improvers, flame retardants, antioxidants, ultraviolet absorbers, plasticizers, thixotropic agents, etc. These additives may be used alone or in combination of two or more.

[0064] Examples of the solvent include acetate-based solvents, (poly)alkylene glycol ether-based solvents, aliphatic ester-based solvents, aliphatic alcohol solvents, ketone-based solvents, and hydrocarbon-based solvents. Two or more of these may be contained. The content of the organic solvent in the colored resin composition is preferably 30% by mass or more from the viewpoint of improving coating properties, and is preferably 85% by mass or less from the viewpoint of improving drying properties.

[0065] Examples of surfactants include anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, and silicone surfactants. Two or more of these may be contained. By containing a surfactant, the coatability of the colored resin composition and the surface smoothness of the film of the obtained colored resin composition can be improved.

[0066] Fluorine-based surfactants are widely used in various industrial fields and have the effect of reducing the refractive index, but they also cause a decrease in the adhesion of the colored resin composition and potential risks to the environment, so the above-mentioned silicone-based surfactants and the like are preferred. The content of the surfactant in the colored resin composition is preferably 0.01 mass% or more of the solid content from the viewpoint of improving the coatability of the colored resin composition, and is preferably 1 mass% or less of the solid content from the viewpoint of improving the surface smoothness of the film.

[0067] The dispersant is preferably an acrylic dispersant having a basic group. By having a basic group, the dispersant adsorbs to the surface of the (A) colorant, suppressing thickening and re-aggregation over time. As the basic group, a tertiary amino group or a quaternary ammonium base is preferred, which has good adsorption power to the (A) colorant and high dispersibility. By detaching from the (A) colorant, the amount of dispersant released in the colored film is reduced, thereby improving the adhesion of the colored film after a lightfastness test and a high-temperature, high-humidity test.

[0068] The content of the dispersant is preferably 5 parts by mass or more, and more preferably 10 parts by mass or more, per 100 parts by mass of the (A) colorant from the viewpoint of improving dispersion stability, whereas the content of the dispersant is preferably 100 parts by mass or less, and more preferably 60 parts by mass or less, per 100 parts by mass of the (A) colorant from the viewpoint of improving adhesion and reliability of the colored film.

[0069] Examples of thermal crosslinking agents include alicyclic acid anhydrides, carboxylic acid anhydrides, isocyanate compounds, and epoxy compounds. Blocked isocyanate compounds, which have a long pot life and dissociate when heated at low temperatures, are particularly preferred. Examples of isocyanate compounds include aliphatic diisocyanates, alicyclic diisocyanates, dimers or trimers obtained by modifying diisocyanates, and compounds containing terminal isocyanate groups. Examples of blocking agents include methyl ethyl ketoxime, sodium bisulfite, active methylene compounds, and pyrazole compounds.

[0070] The method for producing the colored resin composition is not particularly limited, and may be a general-purpose method. For example, a resin solution containing (A) colorant, (B) resin, and organic solvent is prepared using a disperser, and the colorant (A) is dispersed in the solution to prepare a colorant dispersion with a high colorant concentration. If necessary, a photopolymerization initiator and a solvent are added, and the mixture is stirred to dissolve. If necessary, an alkali-soluble resin, a polymerizable compound, and other additives are added, and the mixture is further stirred for several minutes to several hours to obtain a colored resin composition solution. The obtained colored resin composition solution is preferably filtered.

[0071] The method for forming a colored film made of a cured product of the colored resin composition on a substrate is not particularly limited, and a general-purpose method may be used. For example, a solution of the colored resin composition may be applied to the substrate by a coating method such as gravure, screen, spinner, dip, curtain flow, roll, spray, slit die, nozzle, or inkjet. Examples of the substrate include glass plates such as soda glass and alkali-free glass, and resin films such as polyester, acrylic, polycarbonate, and cycloolefin.

[0072] After applying the colored resin composition solution, it is preferable to carry out drying to volatilize the solvent and heating for pre-curing. Heating methods for drying and pre-curing include general drying and heating using an oven or hot plate, as well as reduced-pressure drying and reduced-pressure heating. The heating temperature for drying to volatilize the solvent and pre-curing is preferably 50 to 120°C, and the heating time is preferably within 1 to 60 minutes. In the case of reduced-pressure drying and reduced-pressure heating, the heating temperature is preferably 80°C or less from the viewpoint of suppressing re-condensation of the solvent on the inner wall of the reduced-pressure chamber. The pressure is preferably equal to or less than the vapor pressure of the solvent contained in the colored resin composition film, and is preferably 1 to 1,000 Pa. The reduced-pressure drying and reduced-pressure heating time is preferably 10 to 600 seconds.

[0073] Next, the film made of the colored resin composition is exposed to light through a photomask to harden the exposed portions, and then developed using an alkaline developer to remove the unexposed portions to form a predetermined pattern. Examples of exposure machines used in the exposure step include a stepper, a mirror projection mask aligner (MPA), a parallel light mask aligner (PLA), and a lens scan.

[0074] Examples of exposure light sources include ultraviolet rays such as i-line, h-line, and g-line, KrF (wavelength 248 nm) laser, and ArF (wavelength 193 nm) laser. The exposure dose is 10 to 500 mJ / cm. ２ The exposure may be performed through a desired photomask, or directly without a photomask.

[0075] Examples of the development method in the development step include showering, dipping, and puddling. The exposed film is immersed in the developer for preferably 5 seconds to 10 minutes, more preferably 10 seconds to 5 minutes, and even more preferably 50 seconds to 90 seconds. Examples of the developer include alkaline developers such as aqueous solutions containing alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, inorganic alkalis such as carbonates, phosphates, silicates, and borates, amines, quaternary ammonium salts such as tetramethylammonium hydroxide and choline, and the like. After development, it is preferable to rinse with water. Note that when using a coating method such as gravure, screen, or inkjet, the exposure and development steps can be omitted.

[0076] As described above, the colored film made of the cured product of the colored resin composition of the present invention can be obtained by applying a solution of the colored resin composition onto a substrate, followed by drying, exposure, development, and other steps.

[0077] The thickness of the colored film made of the cured product of the colored resin composition of the present invention is preferably in the range of 0.5 to 10 μm, more preferably in the range of 1 to 5 μm, which makes it easy to balance application properties and light-blocking properties. The OD value (optical density) per μm of film thickness is preferably 2.0 or more, particularly preferably 2.2 or more, from the viewpoint of high light-blocking properties. The OD value can be calculated by measuring the intensity of incident light and transmitted light through the colored film using an optical densitometer.

[0078] A colored film made of a cured product of the colored resin composition of the present invention can be used as a colored partition wall, and is preferably used as a colored partition wall for a self-luminous display, particularly for a micro LED display having high luminous intensity. In a self-luminous display, if a colored partition wall is formed in the same pattern as the black matrix of a liquid crystal display, the screen tends to be too bright, and in order to adjust this, it is necessary to increase the area occupied by the colored partition wall, and the larger the area occupied by the colored partition wall, the more anti-reflection performance such as that of the colored film of the present invention is required.

[0079] The micro LED display is a display device in which a large number of tiny LED cells corresponding to each pixel are arranged and separated by partitions formed on a substrate, and includes not only display devices using micro LED cells with vertical and horizontal lengths of less than 100 μm, but also display devices using mini LED cells with vertical and horizontal lengths of approximately 100 μm to 10 mm.

[0080] The colored film of the present invention can also be used as a colored partition wall separating backlight light sources. Examples of light sources include liquid crystal cells, organic EL cells, mini-LED cells, and micro-LED cells. Among these, organic EL cells and micro-LED cells are more preferred in terms of their excellent light-emitting properties. By separating light sources with a colored partition wall made of the colored film of the present invention, color mixing between pixels can be prevented, and the display color purity can be improved.

[0081] In recent years, in organic EL displays, a CoE (Color Filter on Encapsulation) system has been actively developed in which a color filter is formed on an organic EL encapsulant instead of a polarizing plate to improve brightness. In this structure, since a polarizing plate is not present, the external light reflection prevention function of the black matrix is ​​required, and therefore the colored film of the present invention can be suitably used.

[0082] The present invention will be described in more detail below with reference to examples and comparative examples, but the present invention is not limited to these. The names of the compounds used, for which abbreviations are used, are shown below. MPMS: 3-(methacryloyloxy)propyltrimethoxysilane APMS: 3-(acryloxy)propyltrimethoxysilane EOMPMS: 3-[(3-ethyloxetan-3-yl)methoxy]propyl(trimethoxy)silane TPOS: tetrapropoxysilane TMDS: 1,1,3,3-tetramethyldisiloxane PTMOS: phenyltrimethoxysilane BHT: dibutylhydroxytoluene PnB: 1-butoxy-2-propanol DAA: diacetone alcohol PGMEA: propylene glycol monomethyl ether acetate THF: tetrahydrofuran Synthesis Example 1 Solution of siloxane resin (J-1) A 300 mL four-neck flask was charged with 12 g of MPMS, 26 g of TPOS, and 0.2 g of TMDS, followed by 0.02 g of BHT, 60 g of PnB, 10 g of DAA, and 10 g of PGMEA. The mixture was heated to 40 ° C. with stirring, followed by an aqueous phosphoric acid solution prepared by dissolving 0.3 g of phosphoric acid in 30 g of water, which was added dropwise over 50 minutes. The mixture was then heated to 50 ° C. and stirred for 1 hour to hydrolyze the mixture. The heater temperature was then set to 70 ° C. and stirred for 60 minutes, followed by setting the heater temperature to 90 ° C. for 30 minutes, setting the heater temperature to 100 ° C. for 60 minutes, and setting the heater temperature to 110 ° C. and stirring for 100 minutes, and polymerization was terminated. The alcohols produced by hydrolysis and the water produced by condensation were distilled out of the reaction system to obtain a solution of a siloxane resin-containing composition.

[0083] The resulting solution of the siloxane resin-containing composition was concentrated under a nitrogen stream, and the resulting concentrate was analyzed by IR, １ H-NMR, １３ C-NMR, ２９Si-NMR measurements were carried out and the spectra were analyzed. As a result, siloxane resins (J-1) having structures of the chemical formulas [Chemical 1-1] and [Chemical 1-2] and the chemical formulas [Chemical 2-1] and [Chemical 2-2] were produced, and the molar ratio of the products calculated from the peak areas was: (structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]):(structures of chemical formulas [Chemical 2-1] and [Chemical 2-2])=32:68.

[0084] The iodine value of the resulting siloxane resin (J-1) was measured by the method of JIS K 0070 (established in 1992), and the double bond equivalent was estimated based on the iodine value to be 247. The weight average molecular weight (Mw) of the resulting siloxane resin (J-1) in terms of polystyrene was measured by the GPC method under the following measurement conditions to be 11,602. Apparatus: HLC-8320GPC (with built-in RI detector) manufactured by Tosoh Corporation Detector: RI (differential refractometer) Solvent: Pure grade 1 THF Guard column: TSK-guard column Super MP (HZ)-H (1 column) Guard column size: 4.6 mm (ID) × 20 mm Column: TSK-GEL Super Multipore HZ-H (3 columns connected) manufactured by Tosoh Corporation Column size: 4.6 mm (ID) × 150 mm Temperature: 40°C Sample concentration: 0.01 g / 5 mL Injection amount: 10 μL Flow rate: 0.35 mL / min The refractive index of the obtained siloxane resin (J-1) was measured by the method of JIS K 0062 (established in 1992) and was found to be 1.46. The measurement was performed using siloxane resin (J-1) from which the solvent had been removed using a rotary evaporator.

[0085] Synthesis Example 2 Solutions of Siloxane Resins (J-2) to (J-7) Solutions of siloxane resins (J-2) to (J-7) were obtained in the same manner as in Synthesis Example 1, except that the stirring conditions, the concentration and amount of the phosphoric acid aqueous solution added, and the polymerization conditions were changed. The spectra of each were analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 1. The structures of the siloxane resins were not significantly different from those of siloxane resin (J-1), and they were siloxane resins having structures of chemical formulas [Chemical 1-1] and [Chemical 1-2] and chemical formulas [Chemical 2-1] and [Chemical 2-2]. Furthermore, the molar ratio of the products calculated from the peak areas was 32:68 (structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]:structures of chemical formulas [Chemical 2-1] and [Chemical 2-2]).

[0086] Synthesis Example 3: Solution of Siloxane Resin (J-8) A solution of siloxane resin (J-8) was obtained in the same manner as in Synthesis Example 1, except that the amount of MPMS was changed to 26 g and the amount of TPOS was changed to 12 g. Each spectrum was analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 2. Siloxane resins having structures of chemical formulas [Chemical 1-1] and [Chemical 1-2] and chemical formulas [Chemical 2-1] and [Chemical 2-2] were produced in the same manner as in Synthesis Example 1, and the molar ratio of the products calculated from the peak areas was 64:36, with the structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]:the structures of chemical formulas [Chemical 2-1] and [Chemical 2-2].

[0087] Synthesis Example 4 Solutions of Siloxane Resins (J-9) to (J-14) Solutions of siloxane resins (J-9) to (J-14) were obtained in the same manner as in Synthesis Example 3, except that the stirring conditions, the concentration and amount of the phosphoric acid aqueous solution added, and the polymerization conditions were changed. The spectra of each were analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 2. The structures of the siloxane resins were not significantly different from those of siloxane resin (J-8), and they were siloxane resins having structures of chemical formulas [Chemical 1-1] and [Chemical 1-2] and chemical formulas [Chemical 2-1] and [Chemical 2-2]. Furthermore, the molar ratio of the products calculated from the peak areas was 64:36 (structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]:structures of chemical formulas [Chemical 2-1] and [Chemical 2-2]).

[0088] Synthesis Example 5: Solution of Siloxane Resin (J-15) A solution of siloxane resin (J-15) was obtained in the same manner as in Synthesis Example 1, except that MPMS was replaced with APMS. Each spectrum was analyzed in the same manner as in Synthesis Example 1, and the double bond equivalent and weight-average molecular weight (Mw) were measured. The results are shown in Table 3. Siloxane resins having structures of chemical formulas [Chemical 1-1] and [Chemical 1-2] and chemical formulas [Chemical 2-1] and [Chemical 2-2] were produced, and the molar ratio of the products calculated from the peak areas was 34:66 (structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]:structures of chemical formulas [Chemical 2-1] and [Chemical 2-2]).

[0089] Synthesis Example 6: Solutions of Siloxane Resins (J-16) to (J-21) Solutions of siloxane resins (J-16) to (J-21) were obtained in the same manner as in Synthesis Example 5, except that the stirring conditions, the concentration and amount of the phosphoric acid aqueous solution added, and the polymerization conditions were changed. The spectra of each were analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 3. The structures of the siloxane resins were not significantly different from those of siloxane resin (J-15), and they were siloxane resins having structures of chemical formulas [Chemical 1-1] and [Chemical 1-2] and chemical formulas [Chemical 2-1] and [Chemical 2-2]. Furthermore, the molar ratio of the products calculated from the peak areas was 34:66 (structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]:structures of chemical formulas [Chemical 2-1] and [Chemical 2-2]).

[0090] Synthesis Example 7: Solution of siloxane resin (J-22) A solution of siloxane resin (J-22) was obtained in the same manner as in Synthesis Example 1, except that 3.2 g of PTMOS was added together with TPOS. The spectra of each resin were analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 5. Siloxane resins having structures of chemical formulas [Chemical Formula 1-1] and [Chemical Formula 1-2], chemical formulas [Chemical Formula 2-1] and [Chemical Formula 2-2], and chemical formulas [Chemical Formula 3-1] and [Chemical Formula 3-2] were produced in the same manner as in Synthesis Example 1. ２９The peak areas of the quantitative spectrum obtained by Si-NMR showed that the structures of the chemical formulae [Chemical Formula 3-1] and [Chemical Formula 3-2] having phenyl groups accounted for 10 mol% of the silicon atoms in the siloxane resin. The molar ratio of the products calculated from the peak areas was 40:60: the structures of the chemical formulae [Chemical Formula 1-1] and [Chemical Formula 1-2]:the structures of the chemical formulae [Chemical Formula 2-1] and [Chemical Formula 2-2].

[0091] Synthesis Example 8: Solutions of Siloxane Resins (J-23) to (J-28) Solutions of siloxane resins (J-23) to (J-28) were obtained in the same manner as in Synthesis Example 9, except that the stirring conditions, the concentration and dropwise addition amount of the phosphoric acid aqueous solution, and the polymerization conditions were changed. The spectra of each were analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 4. The structures of the siloxane resins were not significantly different from those of siloxane resin (J-22), and structures of chemical formulas [Chemical Formula 3-1] and [Chemical Formula 3-2] having phenyl groups were contained at 10 mol% relative to the silicon atoms in the siloxane resin. Furthermore, the molar ratio of products calculated from the peak areas was 40:60 (structures of chemical formulas [Chemical Formula 1-1] and [Chemical Formula 1-2]:structures of chemical formulas [Chemical Formula 2-1] and [Chemical Formula 2-2]).

[0092] Synthesis Example 9: Solution of Siloxane Resin (J-29) A solution of siloxane resin (J-29) was obtained in the same manner as in Synthesis Example 1, except that 8.7 g of PTMOS was added together with TPOS. Each spectrum was analyzed in the same manner as in Synthesis Example 1, and the double bond equivalent and weight-average molecular weight (Mw) were measured. The results are shown in Table 5. Siloxane resins having structures of chemical formulas [Chemical 1-1] and [Chemical 1-2], chemical formulas [Chemical 2-1] and [Chemical 2-2], and chemical formulas [Chemical 3-1] and [Chemical 3-2] were produced in the same manner as in Synthesis Example 1, and the structures of chemical formulas [Chemical 3-1] and [Chemical 3-2] having phenyl groups accounted for 20 mol% of the silicon atoms in the siloxane resin. Furthermore, the molar ratio of the products calculated from the peak areas was 46:54 (structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]:structures of chemical formulas [Chemical 2-1] and [Chemical 2-2]).

[0093] Synthesis Example 10: Solutions of Siloxane Resins (J-30) to (J-35) Solutions of siloxane resins (J-30) to (J-35) were obtained in the same manner as in Synthesis Example 9, except that the stirring conditions, the concentration and amount of the phosphoric acid aqueous solution added, and the polymerization conditions were changed. The spectra of each were analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 5. The structures of the siloxane resins were not significantly different from those of siloxane resin (J-29), and structures of chemical formulas [Chemical 3-1] and [Chemical 3-2] having phenyl groups were contained at 20 mol% relative to the silicon atoms in the siloxane resin. Furthermore, the molar ratio of products calculated from the peak areas was 46:54 (structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]:structures of chemical formulas [Chemical 2-1] and [Chemical 2-2]).

[0094] Synthesis Example 11: Solution of Siloxane Resin (J-36) A solution of siloxane resin (J-36) was obtained in the same manner as in Synthesis Example 1, except that 10.2 g of PTMOS was added together with TPOS. Each spectrum was analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 6. Siloxane resins having structures of chemical formulas [Chemical 1-1] and [Chemical 1-2] and chemical formulas [Chemical 2-1] and [Chemical 2-2] were produced in the same manner as in Synthesis Example 1, and structures of chemical formulas [Chemical 3-1] and [Chemical 3-2] having phenyl groups were contained at 26 mol% relative to the silicon atoms in the siloxane resin. Furthermore, the molar ratio of the products calculated from the peak areas was 32:68 (structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]:structures of chemical formulas [Chemical 2-1] and [Chemical 2-2]).

[0095] Synthesis Example 12: Solution of Siloxane Resin (J-37) A solution of siloxane resin (J-37) was obtained in the same manner as in Synthesis Example 1, except that the amount of MPMS was changed to 6 g and the amount of TPOS was changed to 32 g. The spectra of each resin were analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 7. Siloxane resins having structures of chemical formulas [Chemical 1-1] and [Chemical 1-2] and chemical formulas [Chemical 2-1] and [Chemical 2-2] were produced in the same manner as in Synthesis Example 1, and the molar ratio of the products calculated from the peak areas was 17:83 (structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]:structures of chemical formulas [Chemical 2-1] and [Chemical 2-2]).

[0096] Synthesis Example 13: Solution of Siloxane Resin (J-38) A solution of siloxane resin (J-38) was obtained in the same manner as in Synthesis Example 1, except that the amount of MPMS was changed to 27 g and the amount of TPOS was changed to 11 g. The spectra of each resin were analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 7. Siloxane resins having structures of chemical formulas [Chemical 1-1] and [Chemical 1-2] and chemical formulas [Chemical 2-1] and [Chemical 2-2] were produced in the same manner as in Synthesis Example 1, and the molar ratio of the products calculated from the peak areas was 72:28 (structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]:structures of chemical formulas [Chemical 2-1] and [Chemical 2-2]).

[0097] Synthesis Example 14: Solution of Siloxane Resin (J-39) A solution of siloxane resin (J-39) was obtained in the same manner as in Synthesis Example 1, except that the amount of MPMS was changed to 8 g and the amount of TPOS was changed to 30 g. Each spectrum was analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 7. Siloxane resins having structures of chemical formulas [Chemical 1-1] and [Chemical 1-2] and chemical formulas [Chemical 2-1] and [Chemical 2-2] were produced in the same manner as in Synthesis Example 1, and the molar ratio of the products calculated from the peak areas was 22:78 (structures of chemical formulas [Chemical 1-1] and [Chemical 1-2]:structures of chemical formulas [Chemical 2-1] and [Chemical 2-2]).

[0098] Synthesis Example 15: Solution of Siloxane Resin (J-40) A solution of siloxane resin (J-40) was obtained in the same manner as in Synthesis Example 1, except that 9.2 g of PTMOS was added instead of MPMS. Each spectrum was analyzed, and the double bond equivalent and weight-average molecular weight (Mw) were measured in the same manner as in Synthesis Example 1. The results are shown in Table 8. This solution contained a siloxane resin having a phenyl group, and the siloxane resin contained neither a methacryloyl group nor an acryloyl group. Since siloxane resin (J-40) does not contain any double bonds that would contribute to the double bond equivalent, the double bond equivalent cannot be calculated.

[0099] Synthesis Example 16: Solution of Siloxane Resin (J-41) A solution of siloxane resin (J-41) was obtained in the same manner as in Synthesis Example 1, except that 20 g of MPMS, 10 g of PTMOS, and 5 g of TPOS were added. Each spectrum was analyzed in the same manner as in Synthesis Example 1, and the double bond equivalent and weight-average molecular weight (Mw) were measured. The results are shown in Table 8. The siloxane resin structure contained 34 mol% of structures of chemical formulas [Chemical Formula 3-1] and [Chemical Formula 3-2] having phenyl groups, relative to the silicon atoms in the siloxane resin. Furthermore, the molar ratio of products calculated from the peak areas was 81:19 (structures of chemical formulas [Chemical Formula 1-1] and [Chemical Formula 1-2]:structures of chemical formulas [Chemical Formula 2-1] and [Chemical Formula 2-2]).

[0100] Synthesis Example 17: Solution of Siloxane Resin (J-42) A solution of siloxane resin (J-42) was obtained in the same manner as in Synthesis Example 1, except that 20 g of MPMS, 10 g of PTMOS, and 5 g of TPOS were added. Each spectrum was analyzed in the same manner as in Synthesis Example 1, and the double bond equivalent and weight-average molecular weight (Mw) were measured. The results are shown in Table 8. The siloxane resin structure contained 34 mol% of structures of chemical formulas [Chemical Formula 3-1] and [Chemical Formula 3-2] having phenyl groups, relative to the silicon atoms in the siloxane resin. Furthermore, the molar ratio of products calculated from the peak areas was 81:19 (structures of chemical formulas [Chemical Formula 1-1] and [Chemical Formula 1-2]:structures of chemical formulas [Chemical Formula 2-1] and [Chemical Formula 2-2]).

[0101] Synthesis Example 18: Synthesis of Acrylic Resin (P-1) A methyl methacrylate / methacrylic acid / styrene copolymer (weight ratio 30 / 30 / 40) was synthesized by the method described in Example 1 of Japanese Patent No. 3120476. 40 parts by weight of glycidyl methacrylate was added to 100 parts by weight of the obtained copolymer, and the mixture was reprecipitated with purified water, filtered, and dried to obtain an acrylic resin (P-1) having a weight average molecular weight of 15,000 and an acid value of 110 mgKOH / g. The acid value of the acrylic resin was expressed as the amount (mg) of potassium hydroxide required to neutralize 1 g of the acrylic resin (unit: mgKOH / g), and the weight average molecular weight was measured using gel permeation chromatography (GPC) "HLC-8220GPC" (testing equipment manufactured by Tosoh Corporation) using tetrahydrofuran as a carrier, in terms of polystyrene.

[0102] (Production Example 1 Production of Carbon Black Dispersion (DP-1)) 17 g of each of high-resistivity carbon black pigments having average primary particle sizes of 10 μm, 12 μm, 15 μm, 20 μm, and 25 μm were charged into a flask along with 18 g of a 35 mass % PGMEA solution of the acrylic resin (P-1) obtained in Synthesis Example 15, 3 g of "DISPERBYK" (registered trademark) LP N21116 (manufactured by BYK-Chemie, PGMEA 40 mass % solution) as an acrylic dispersant, and 62 g of PGMEA, and the mixture was stirred for 20 minutes with a homomixer to obtain each preliminary dispersion.

[0103] Each of the preliminary dispersions obtained was supplied to an Ultra Apex Mill UAM015 disperser manufactured by Kotobuki Industries Co., Ltd., equipped with a centrifugal separator filled with 75% by volume of zirconia beads having a bead diameter of 0.30 mmφ, and dispersed for 20 minutes at a rotation speed of 12 m / s. Subsequently, the dispersed liquid was supplied to another Ultra Apex Mill UAM015 disperser filled with 75% by volume of zirconia beads having a bead diameter of 0.05 mmφ, and dispersed for 90 minutes at a rotation speed of 8 m / s. The dispersion was then filtered through a 5 μm filter to obtain carbon black dispersions DP-1 having average primary particle diameters of 10 μm, 12 μm, 15 μm, 20 μm, and 25 μm, each with a solids concentration of 20% by mass.

[0104] (Production Example 2: Production of Bisbenzofuran Pigment Dispersion (DP-2)) 40 g of bisbenzofuran pigment "Irgaphor" (registered trademark) Black S0100CF manufactured by BASF Corporation, 480 g of sodium chloride, and 80 g of diethylene glycol were charged and kneaded at 70 ° C. for 8 hours. Next, this kneaded mixture was added to approximately 2 L of warm water, and stirred in a mixer for 1 hour while heated to 40 ° C. to form a slurry, followed by filtration and washing with water to remove sodium chloride and diethylene glycol, and vacuum drying at 80 ° C. for 24 hours to obtain bisbenzofuran pigments having average primary particle sizes of 10 μm, 15 μm, and 25 μm, respectively. Except for changing TPK1227R to the obtained bisbenzofuran pigment, the same procedures as in Production Example 1 were carried out to obtain bisbenzofuran pigment dispersions DP-2 having average primary particle sizes of 10 μm, 15 μm, and 25 μm and a solids concentration of 20 mass%.

[0105] (Production Example 3: Production of pseudo-black colorant dispersion (DP-3)) ​​20 g of "Cromophtal" (registered trademark) Red A3B manufactured by BASF Corporation, 240 g of sodium chloride, and 40 g of diethylene glycol were charged and kneaded for 8 hours at 70° C. Next, this kneaded mixture was poured into about 1 L of warm water, and stirred in a mixer for 1 hour while heating to 40° C. to form a slurry, which was then filtered and washed with water to remove the sodium chloride and diethylene glycol, and then vacuum dried at 80° C. for 24 hours to obtain a red pigment.

[0106] Next, a blue pigment was obtained in the same manner as the red pigment, except that "Cromophtal" (registered trademark) Red A3B was changed to "LIONOL" (registered trademark) BLUE ES manufactured by Toyocolor Co., Ltd. Next, a yellow pigment was obtained in the same manner as the red pigment, except that "Cromophtal" (registered trademark) Red A3B was changed to E4GN manufactured by Lanxess K.K.

[0107] Next, 6 g of the obtained red pigment, 6 g of the obtained blue pigment, 5 g of the obtained yellow pigment were mixed to 17 g of pseudo-black pigment, 18 g of PGMEA 35% by mass solution, 3 g of acrylic dispersant "DISPERBYK" (registered trademark) LP N21116 (manufactured by BYK-Chemie, PGMEA 40% by mass solution) and 62 g of PGMEA were charged into a flask, and stirred for 20 minutes with a homomixer to obtain pseudo-black pigments having an average primary particle size of 10 μm, 15 μm, and 25 μm, respectively. Except that TPK1227R was changed to the obtained pseudo-black pigment, the same procedures as in Production Example 1 were carried out to obtain a pseudo-black pigment dispersion DP-3 having a solids concentration of 20% by mass and an average primary particle size of 10 μm, 15 μm, and 25 μm, respectively. (Evaluation of Light-Shielding Property) The cured colored films obtained in the following examples and comparative examples were measured for incident light I using an optical densitometer (361T (visual)) manufactured by X-rite. ０ and the intensity of transmitted light I was measured, and the OD value = log 10 (I ０ / I). A: 2.7≦OD value B: 2.4≦OD value<2.7 C: OD value<2.4 (Evaluation of Low Reflectivity (SCI)) For the cured colored films obtained in each of the following Examples and Comparative Examples, the reflection chromaticity (L*) of total reflection chromaticity for light incident from the colored film surface side was measured using a reflection colorimeter (spectrophotometer) CM-2600D (measuring diameter φ3 mm) manufactured by Konica Minolta, Inc., calibrated with a white calibration plate (CM-A145) manufactured by Konica Minolta, Inc., under measurement conditions of standard light source D65 (color temperature 6504K), viewing angle 10° (CIE1976), atmospheric pressure, and an air temperature of 20°C. A: SCI mode L* value less than 30 B: SCI mode L* value 30 or more but less than 31 C: SCI mode L* value 31 or more but less than 32 D: SCI mode L* value 32 or more but less than 33 E: SCI mode L* value 33 or more. (Evaluation of low reflectivity (SCE)) For the cured colored films obtained in each of the following examples and comparative examples, the reflective chromaticity (L*) in diffuse reflection chromaticity (SCE mode) for light incident from the colored film surface side was measured in the same manner as in the evaluation of low reflectivity (SCI) above. A: SCE mode L* value less than 0.2 B: SCE mode L* value 0.2 or more but less than 0.4 C: SCE mode L* value 0.4 or more. (Evaluation of Long-Term Development Resistance) For the colored films obtained in each of the following Examples and Comparative Examples before shower development with a 0.045% potassium hydroxide aqueous solution for 80 seconds, the reflection chromaticity (L*) in total reflection chromaticity (SCI mode) was measured using the low reflectivity (SCI) evaluation method described above, and the change in reflection chromaticity (L*) before and after development was measured. A: SCI mode L* value change < 0.2 B: 0.2 ≦ SCI mode L* value change < 0.4 C: 0.4 ≦ SCI mode L* value change < 0.6. (Evaluation of Adhesion) For samples in which a cured colored film was formed on a glass substrate obtained in each of the following Examples and Comparative Examples, adhesion was evaluated in accordance with JIS K 5600-5-6 (established in 1999).Specifically, 11 cuts reaching the substrate were made on the surface of the colored film at 1 mm intervals and 2 mm intervals to create 100 grids, and the film was treated for 12 hours at 121 ° C, 2 atmospheres, and 100% humidity using a PC-242HS-E manufactured by Hirayama Manufacturing Co., Ltd., followed by adhering cellophane adhesive tape (width = 18 mm, adhesive strength = 3.7 N / 10 mm) to the grids and rubbing with an eraser (JIS S 6050 compliant) to bring the tape and the colored film into close contact, and then holding one end of the tape, the end of the tape was quickly peeled off at a 45-degree angle to evaluate the state of the grids. A: No peeling at all, even of the 1 mm grids. B: No peeling at all of the 2 mm grids, and small peeling of the coating film at the intersections of the 1 mm grids, but not more than 5%. C: No peeling at all from the grid squares with 2 mm intervals, but peeling of more than 5% from the grid squares with 1 mm intervals. D: No peeling at all from the grid squares with 2 mm intervals, but peeling of more than 15% from the grid squares with 1 mm intervals. (Evaluation of Heat Resistance) The samples obtained in the following Examples and Comparative Examples, on which a cured colored film was formed on a glass substrate, were placed in an incubator set to temperatures of 80°C, 100°C, and 120°C, and the presence or absence of film abnormalities (distortion, deformation, wrinkles, cracks) was examined after leaving the film in the incubator for 240 hours and after leaving it for 480 hours. A: No film abnormalities at 120°C. B: No film abnormalities at 100°C, slight wrinkles after 240 hours at 120°C. C: No film abnormalities at 80°C, slight wrinkles after 240 hours at 100°C. (Evaluation of Chemical Resistance) Samples having a cured colored film formed on a glass substrate, obtained in each of the following Examples and Comparative Examples, were immersed in ethanol, acetone, N-methyl-2-pyrrolidone, or a 5% aqueous potassium hydroxide solution at room temperature for 1 hour, and the changes in the appearance of the coating film after immersion were observed to confirm the presence or absence of swelling, cracking, peeling, discoloration, gloss change, or dissolution of the film. A: No change in any of the solutions B: Slight gloss change in the film in N-methyl-2-pyrrolidone. No change in the other solutions C: Slight peeling of the film in 5% potassium hydroxide, or slight gloss change in the film in N-methyl-2-pyrrolidone. No change in the other solutions.(Evaluation of Refractive Index of Colored Film) The refractive index of the cured colored film obtained in each of the following Examples and Comparative Examples was analyzed by polarized light analysis (ellipsometry), and the average value in the wavelength range of 500 nm to 600 nm was taken as the refractive index n. １ The polarization analysis is a method of measuring the change in polarization state that occurs when polarized light is irradiated onto the film surface of a glass substrate and reflected by the film surface. A J. A. Woollam M-2000 high-speed spectroscopic ellipsometer was used as the polarization analyzer. The measurement conditions were as follows: incident angle 50, 60, 70 degrees, measurement wavelength 247 to 1680 nm, analysis software CompleteEASE, beam diameter 2 mm x 8 mm. A; 1.55≦n １ <1.59 B; 1.59≦n １ <1.63 C; 1.63≦n １ <1.66 D; 1.66≦n １ <1.69 E; 1.70≦n １ Example 1 34.1 g of colorant dispersion (DP-1) was placed in a flask and, while stirring, 12.4 g of a 25% by mass solution of siloxane resin (J-1) in PGMEA, 12.3 g of acrylic resin (P-1), 3.2 g of dipentaerythritol hexaacrylate ("KAYARAD" (registered trademark) manufactured by Shin Nippon Pharmaceutical Co., Ltd.) as a photopolymerizable compound, and 0.7 g of an oxime-based photopolymerization initiator (ADEKA CRUISE NCI-831E manufactured by ADEKA CORPORATION) were added. A mixture of 0.3 g of a 75% by mass solution of blocked isocyanate ("Coronate" (registered trademark) BI-301 manufactured by Tosoh Corporation) diluted with "Solvesso" (registered trademark) 100 manufactured by Exxon Chemical Co., Ltd., 0.2 g of a 10% by mass solution of a silicone surfactant ("BYK" (registered trademark) 333 manufactured by BYK Chemie) diluted with PGMEA, and 37 g of PGMEA as a solvent was added dropwise using a dropping funnel over 30 minutes and stirred. The resulting mixture was filtered through a 5.0 μm filter to obtain a colored resin composition.

[0108] The obtained colored resin composition was applied to a substrate made of alkali-free glass AN100 manufactured by AGC Co., Ltd. with a thickness of 0.5 mm using a spin coater 1H-DS manufactured by Mikasa Co., Ltd., so that the film thickness after baking would be 1.4 μm, and the coating was dried to the touch on a hot plate at 90°C for 2 minutes, and then exposed to an i-line exposure light source at an exposure dose of 100 mJ / cm. ２ The resulting film was exposed to light at 1000 K, and then shower-developed with a 0.045% aqueous potassium hydroxide solution for 80 seconds, followed by baking in an oven at 170° C. for 30 minutes to obtain a cured colored film. The cured colored film was evaluated by the above-mentioned methods, and the results are shown in Table 1.

[0109]

[0110] (Examples 2 to 3) Colored resin compositions were obtained in the same manner as in Example 1, except that colorant dispersions (DP-2) and (DP-3) were used instead of colorant dispersion (DP-1). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 1.

[0111] (Examples 4 to 9) Colored resin compositions were obtained in the same manner as in Example 1, except that siloxane resins (J-2) to (J-7) were used instead of the solution of siloxane resin (J-1). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 1.

[0112] (Examples 10 to 13) Colored resin compositions were obtained in the same manner as in Example 1, except that the average primary particle diameter of the colorant in the colorant dispersion (DP-1) was changed. Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 1.

[0113] (Examples 14 to 15) Colored resin compositions were obtained in the same manner as in Example 2, except that the average primary particle diameter of the colorant in the colorant dispersion (DP-2) was changed. Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 1.

[0114] (Examples 16 to 17) Colored resin compositions were obtained in the same manner as in Example 3, except that the average primary particle diameter of the colorant in the colorant dispersion (DP-3) was changed. Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 1.

[0115] (Example 18) A colored resin composition was obtained in the same manner as in Example 1, except that siloxane resin (J-8) was used instead of the solution of siloxane resin (J-1). Using the obtained colored resin composition, the same evaluations as in Example 1 were performed. The results are shown in Table 2.

[0116]

[0117] (Examples 19 to 20) Colored resin compositions were obtained in the same manner as in Example 18, except that colorant dispersions (DP-2) and (DP-3) were used instead of colorant dispersion (DP-1). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 2.

[0118] (Examples 21 to 26) Colored resin compositions were obtained in the same manner as in Example 18, except that siloxane resins (J-9) to (J-14) were used instead of the solution of siloxane resin (J-8). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are shown in Table 2.

[0119] (Example 27) A colored resin composition was obtained in the same manner as in Example 1, except that siloxane resin (J-15) was used instead of the solution of siloxane resin (J-1). Using the obtained colored resin composition, the same evaluations as in Example 1 were performed. The results are shown in Table 3.

[0120]

[0121] (Examples 28 to 29) Colored resin compositions were obtained in the same manner as in Example 27, except that colorant dispersions (DP-2) and (DP-3) were used instead of colorant dispersion (DP-1). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 3.

[0122] (Examples 30 to 35) Colored resin compositions were obtained in the same manner as in Example 27, except that siloxane resins (J-16) to (J-21) were used instead of the solution of siloxane resin (J-15). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are shown in Table 3.

[0123] (Examples 36 to 42) Colored resin compositions were obtained in the same manner as in Example 1, except that siloxane resins (J-22) to (J-28) were used instead of the solution of siloxane resin (J-1). The obtained colored resin compositions were used to perform the same evaluations as in Example 1. The results are shown in Table 4.

[0124]

[0125] (Examples 43 to 44) Colored resin compositions were obtained in the same manner as in Example 43, except that colorant dispersions (DP-2) and (DP-3) were used instead of colorant dispersion (DP-1). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 4.

[0126] (Examples 45 to 46) Colored resin compositions were obtained in the same manner as in Example 36, except that the average primary particle diameter of the colorant in the colorant dispersion (DP-1) was changed. Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 4.

[0127] (Examples 47 to 53) Colored resin compositions were obtained in the same manner as in Example 1, except that siloxane resins (J-29) to (J-35) were used instead of the solution of siloxane resin (J-1). The obtained colored resin compositions were used to perform the same evaluations as in Example 1. The results are shown in Table 5.

[0128]

[0129] (Examples 54 to 55) Colored resin compositions were obtained in the same manner as in Example 47, except that the colorant dispersion liquid (DP-1) was changed to colorant dispersion liquids (DP-2) and (DP-3). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 5.

[0130] (Examples 56 to 57) Colored resin compositions were obtained in the same manner as in Example 47, except that the average primary particle diameter of the colorant in the colorant dispersion (DP-1) was changed. Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 5.

[0131] (Example 58) A colored resin composition was obtained in the same manner as in Example 1, except that a solution of siloxane resin (J-36) was used instead of the solution of siloxane resin (J-1). The obtained colored resin composition was used to perform the same evaluations as in Example 1. The results are shown in Table 6.

[0132]

[0133] (Examples 59 to 60) Colored resin compositions were obtained in the same manner as in Example 58, except that colorant dispersions (DP-2) and (DP-3) were used instead of colorant dispersion (DP-1). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 6.

[0134] (Example 61) A colored resin composition was obtained in the same manner as in Example 1, except that a solution of siloxane resin (J-37) was used instead of the solution of siloxane resin (J-1). The obtained colored resin composition was used to perform the same evaluations as in Example 1. The results are shown in Table 7.

[0135]

[0136] (Examples 62 to 63) Colored resin compositions were obtained in the same manner as in Example 61, except that colorant dispersions (DP-2) and (DP-3) were used instead of colorant dispersion (DP-1). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are also shown in Table 7.

[0137] (Examples 64 to 66) Colored resin compositions were obtained in the same manner as in Examples 61 to 63, except that a solution of siloxane resin (J-38) was used instead of the solution of siloxane resin (J-37). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are shown in Table 7.

[0138] (Examples 67 to 69) Colored resin compositions were obtained in the same manner as in Examples 61 to 63, except that a solution of siloxane resin (J-39) was used instead of the solution of siloxane resin (J-37). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are shown in Table 7.

[0139] (Comparative Examples 1 to 3) Colored resin compositions were obtained in the same manner as in Examples 61 to 63, except that a solution of siloxane resin (J-40) was used instead of siloxane resin (J-37). Using the obtained colored resin compositions, evaluations were carried out in the same manner as in Example 1. The results are shown in Table 8. Note that since siloxane resin (J-40) does not have a double bond that contributes to the double bond equivalent, the double bond equivalent cannot be calculated.

[0140] (Comparative Examples 4 to 9) Colored resin compositions were obtained in the same manner as in Examples 61 to 63, except that solutions of siloxane resins (J-41) and (J-42) were used instead of the solution of siloxane resin (J-40). Using the obtained colored resin compositions, evaluations were performed in the same manner as in Example 1. The results are shown in Table 8.

[0141]

[0142] A colored film made of a cured product of the colored resin composition of the present invention can be used as a colored partition wall, and is preferably used as a colored partition wall for a self-luminous display, particularly for a micro LED display having high luminous intensity. In a self-luminous display, if a colored partition wall is formed in the same pattern as the black matrix of a liquid crystal display, the screen tends to be too bright, and in order to adjust this, it is necessary to increase the area occupied by the colored partition wall, and the larger the area occupied by the colored partition wall, the more anti-reflection performance such as that of the colored film of the present invention is required.

[0143] The colored film of the present invention can also be used as a colored partition wall separating backlight light sources. Examples of light sources include liquid crystal cells, organic EL cells, mini-LED cells, and micro-LED cells. Among these, organic EL cells and micro-LED cells are more preferred in terms of their excellent light-emitting properties. By separating light sources with a colored partition wall made of the colored film of the present invention, color mixing between pixels can be prevented, and the display color purity can be improved.

[0144] In recent years, in organic EL displays, a CoE (Color Filter on Encapsulation) system has been actively developed in which a color filter is formed on an organic EL encapsulant instead of a polarizing plate to improve brightness. In this structure, since a polarizing plate is not present, the external light reflection prevention function of the black matrix is ​​required, and therefore the colored film of the present invention can be suitably used.

Claims

1. A colored resin composition containing (A) a colorant and (B) a resin, wherein the (B) resin contains a (B1) siloxane resin, the (B1) siloxane resin having a repeating unit represented by the following formula (1-1) or formula (1-2), and having a double bond equivalent of 100 to 400 g / eq. (In the above formula (1-1) and formula (1-2), R １ represents an organic group containing at least one of a methacryloyl group or an acryloyl group. R represents hydrogen or an alkyl group having 1 to 6 carbon atoms.

2. The (B1) siloxane resin further contains a repeating unit represented by the following formula (2-1) or formula (2-2), and the repeating unit represented by formula (1-1) or formula (1-2) and the repeating unit represented by formula (2-1) or formula (2-2) are ２９ 2. The colored resin composition according to claim 1, wherein the peak area ratio in a quantitative spectrum obtained by Si-NMR method is 20:80 to 70:

30. (In the above formulas (2-1) and (2-2), R represents hydrogen or an alkyl group having 1 to 6 carbon atoms.) 3. The (B1) siloxane resin further contains a repeating unit represented by the following formula (3-1) or formula (3-2): ２９ 3. The colored resin composition according to claim 1, wherein the content of said repeating unit determined from the peak area of ​​a quantitative spectrum by Si-NMR method is 20 mol % or less based on silicon atoms in the siloxane resin. (In the above formula (3-1) and formula (3-2), R ２ represents an organic group containing an aryl group. R represents hydrogen or an alkyl group having 1 to 6 carbon atoms.

4. The colored resin composition according to claim 1 or 2, wherein the refractive index of the siloxane resin (B1) is 1.44 to 1.

50.

5. The colored resin composition according to claim 1 or 2, wherein the weight average molecular weight of the siloxane resin having the repeating unit represented by formula (1) is 2,000 to 20,000.

6. The colored resin composition according to claim 1 or 2, wherein the colorant (A) is at least one of a black organic pigment, a mixed color organic pigment, and a black inorganic pigment.

7. The colored resin composition according to claim 6, wherein the average primary particle size of the colorant (A) is 10 to 25 nm.

8. The colored resin composition according to claim 1 or 2, wherein the (B) resin further contains an alkali-soluble resin, and the colored resin composition further contains (C) a polymerizable compound and (D) a photopolymerization initiator.

9. The colored resin composition according to claim 8, wherein the content of the siloxane resin (B1) is 1 to 60 parts by weight per 100 parts by weight of the total of the resin (B) and the polymerizable compound (C).

10. A colored film comprising a cured product of the colored resin composition according to claim 1 or 2.

11. The colored film according to claim 10, which has a reflected chromaticity L* value in SCI mode of 29.5 to 31.8 and a reflected chromaticity L* value in SCE mode of less than 0.

3.

12. A colored partition wall comprising the colored film according to claim 10 or 11.

13. Refractive index n of the colored film formed on the substrate １ 1.55≦n １ 11. The colored film of claim 10, wherein the color is ≦1.

69.

14. An organic EL display device comprising the colored film according to claim 10 or 13.

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