Visible light-blocking photosensitive composition, visible light-blocking film, and sensor

Abstract

To provide a visible light light-shielding photosensitive composition which exhibits characteristics such as excellent light-shielding properties of a visible light region of a wavelength of 400-700 nm and coating uniformity, high viscosity storage stability, pattern adhesion, and excellent resolution, and a visible light light-shielding film using the same.SOLUTION: A visible light light-shielding photosensitive composition contains a coloring agent (A), a resin type dispersion (B), a polymerizable compound (C) and a photopolymerization initiator (D), in which 20-50 mass% of a copper phthalocyanine blue pigment, 20-50 mass% of C.I. pigment yellow 139 and 15-45 mass% of C.I. pigment violet 23 are contained in 100 mass% of the coloring agent (A), and the resin type dispersion (B) contains two or more acidic resin type dispersions (B1) having an acid value of 30-80 mgKOH / g.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a visible light-shielding photosensitive composition containing an organic pigment. By forming a film of the composition, the visible light-shielding function can be utilized to conceal the base and make it invisible to the human eye, or to be used as a coating material that does not transmit visible light for objects whose base is affected by visible light. The present invention also utilizes the visible light-shielding property to be used in sensors, etc. [Background technology]

[0002] A visible light-shielding photosensitive composition can obtain light-shielding properties by combining a plurality of organic pigments. Patent Document 1 discloses an example of a coloring composition using three or four types of organic pigments, in which a dispersant having a base block and an acid group block is used. However, since the visible light-shielding photosensitive composition is made into a dispersion by combining a plurality of organic pigments, it has poor dispersion stability, and there are problems with viscosity stability and coating uniformity. In addition, when the pigment concentration is increased to improve the visible light-shielding properties, there are problems in that the developability is reduced, and the resolution and adhesion of the pattern are deteriorated. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-177273 A Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention aims to provide a visible light-shielding photosensitive composition that exhibits excellent light-shielding properties in the visible light region of 400 to 700 nm wavelength, excellent coating uniformity, high viscosity storage stability, pattern adhesion, and excellent resolution, and a visible light-shielding film using the same. [Means for solving the problem]

[0005] The visible light-blocking photosensitive composition of the present invention comprises a colorant (A), a resin-type dispersant (B), a polymerizable compound (C) and a photopolymerization initiator (D), The colorant (A) contains 20 to 50 mass% of copper phthalocyanine blue pigment, 20 to 50 mass% of CI Pigment Yellow 139, and 15 to 45 mass% of CI Pigment Violet 23, based on 100 mass% of the colorant (A); The present invention relates to a visible light-blocking photosensitive composition, wherein the resin-type dispersant (B) contains two or more kinds of acidic resin-type dispersants (B1) having an acid value of 30 to 80 mgKOH / g.

[0006] The present invention also relates to a visible light-blocking photosensitive composition, wherein the acidic resin-type dispersant (B1) contains an acidic resin-type dispersant (B1-1) having a side chain glass transition temperature of -30°C or lower.

[0007] The present invention also relates to a visible light-blocking photosensitive composition, in which the content of the acidic resin-type dispersant (B1-1) is 2 to 10 mass % based on the total solid content of the visible light-blocking photosensitive composition.

[0008] The present invention also relates to a visible light-blocking photosensitive composition, wherein the copper phthalocyanine blue pigment is at least one pigment selected from the group consisting of CI Pigment Blue 15:3, 15:4 and 15:6.

[0009] The present invention also relates to a visible light-blocking photosensitive composition, wherein the photopolymerization initiator (D) contains a compound represented by the following general formula (1): General formula (1) [ka] [In the general formula (1), X 1 , X 3 and X 6 are each independently R 11 , OR 11 , C.O.R. 11 , S.R. 11 ,CONR 12 R 13 or CN, X 2represents an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted aryl group having 6 to 30 carbon atoms, an optionally substituted arylalkyl group having 7 to 30 carbon atoms, or an optionally substituted heterocyclic group having 2 to 20 carbon atoms; X 4 and X 5 are each independently R 11 , OR 11 , S.R. 11 , C.O.R. 11 ,CONR 12 R 13 , N.R. 12 COR 11 , O.C.O.R. 11 , COOR 11 , SCOR 11 , C.O.S.R. 11 , C.O.S.R. 11 , C.S.O.R. 11 , CN, a halogen atom or a hydroxyl group. 11 , R 12 and R 13 each independently represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms which may have a substituent, an aryl group having 6 to 30 carbon atoms which may have a substituent, an arylalkyl group having 7 to 30 carbon atoms which may have a substituent, or a heterocyclic group having 2 to 20 carbon atoms which may have a substituent. a and b each independently represent an integer of 0 to 3.]

[0010] The present invention also relates to a visible light-shielding film formed from the above visible light-shielding photosensitive composition.

[0011] The present invention also relates to a sensor comprising the above-mentioned visible light-shielding film. Effect of the Invention

[0012] The present invention can provide a visible light-shielding photosensitive composition that exhibits excellent light-shielding properties in the visible light region of wavelengths of 400 to 700 nm, excellent coating uniformity, high storage stability, pattern adhesion, and excellent resolution, and a visible light-shielding film using the same. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] First, the terms used in this specification are defined. When "(meth)acryloyl", "(meth)acrylic", "(meth)acrylic acid", or "(meth)acrylate" is written, it means "acryloyl and / or methacryloyl", "acrylic and / or methacrylic", "acrylic acid and / or methacrylic acid", or "acrylate and / or methacrylate", respectively, unless otherwise specified. Furthermore, "CI" in this specification means Color Index (CI). Light blocking property refers to the function of blocking visible light. Colorants include pigments and dyes.

[0014] <Visible light blocking photosensitive composition> <Colorant (A)> The colorant (A) in the present invention contains 20 to 50 mass% of copper phthalocyanine blue pigment and 20 to 50 mass% of CI Pigment Yellow 139, based on a total of 100 mass% of the colorant (A). %, and 15 to 45% by mass of CI Pigment Violet 23. This provides light-shielding properties. The colorant (A) may contain other organic pigments, dyes, inorganic pigments, etc., other than the organic pigments described above, as necessary. The contents are preferably 30 to 40% by mass of copper phthalocyanine blue pigment, 30 to 45% by mass of CI Pigment Yellow 139, and 20 to 35% by mass of CI Pigment Violet 23, which is more effective in increasing the light-shielding properties, particularly on the long wavelength side, of the visible light region.

[0015] (Blue organic pigment: copper phthalocyanine blue pigment) The copper phthalocyanine blue pigment preferably contains one or more pigments selected from the group consisting of CI Pigment Blue 15:3, 15:4 and 15:6, and more preferably CI Pigment Blue 15:6.

[0016] (yellow organic pigment) Other yellow pigments that can be used in combination with CI Pigment Yellow 139 include, for example, CI Pigment Yellow 1, 2, 3, 4, 5, 6, 10, 12, 13, 14, 15, 16, 17, 18, 20, 24, 31, 32, 34, 35, 35:1, 36, 36:1, 37, 37:1, 40, 42, 43, 53, 55, 60, 61, 62, 63, 65, 73, 74, 77, 81, 83, 86, 93, 94, 95, 97, 98, 100, 101, 104, 106, 108, 109, 110, 113, 114, 115, 116, 117, 118, 119, 120, 123, 125 , 126, 127, 128, 129, 137, 138, 147, 148, 150, 151, 152, 153, 154, 155, 156, 161, 162, 164, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 179, 180, 181, 182, 185, 187, 188, 193, 194, 198, 199, 213, 214, 218, 219, 220, 221, 231 or 233, etc.

[0017] (Purple organic pigment) Other purple pigments that can be used in combination with CI Pigment Violet 23 include, for example, CI Pigment Violet 1, 19, 27, 29, 30, 32, 37, 40, 42, 50, and the like.

[0018] (Other organic pigments) Other specific examples of organic pigments are shown below by color index numbers.

[0019] Red organic pigments include, for example, CI Pigment Red 7, 9, 14, 41, 48:1, 48:2, 48:3, 48:4, 57:1, 81, 81:1, 81:2, 81:3, 81:4, 97, 122, 123, 146, 149, 150, 168, 169, 176, 177, 178, 180, 184, 185, 187, 192, 200, 202, 208, 209, 210, 21 5, 216, 217, 220, 223, 224, 226, 227, 228, 240, 242, 246, 254, 255, 264, 268, 270, 272, 273, 274, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 295 or 296, etc.

[0020] Examples of orange organic pigments include CI Pigment Orange 36, 38, 43, 51, 55, 59, 61, 71, and 73.

[0021] Green organic pigments include, for example, CI Pigment Green 7, 10, 36, 37, 58, 59, 62, 63, etc.

[0022] Blue organic pigments include e.g. CI Pigment Blue 1, 1:2, 1:3, 2, 2:1 , 2:2, 3, 8, 9, 10, 10:1, 11, 12, 15, 15:1, 15:2, 16, 18, 19, 22, 24, 24:1, 53, 56, 56:1, 57, 58, 59, 60, 61, 62, 64, etc. (Inorganic pigments) Examples of inorganic pigments include titanium oxide, barium sulfate, zinc oxide, lead sulfate, yellow lead, zinc yellow, red iron oxide (red iron (III) oxide), cadmium red, ultramarine, Prussian blue, chromium oxide green, cobalt green, amber, and synthetic iron black.

[0023] (dye) Examples of the dye include acid dyes, direct dyes, basic dyes, salt-forming dyes, oil-soluble dyes, disperse dyes, reactive dyes, mordant dyes, vat dyes, sulfur dyes, etc. Also included are dye derivatives and lake pigments obtained by converting dyes into lakes.

[0024] In addition, the dye may be a salt-forming compound of an acid dye having an acidic group such as sulfonic acid or carboxylic acid with a quaternary ammonium salt compound, a tertiary amine compound, a secondary amine compound, or a primary amine compound; or a salt-forming compound of a resin component having an amino group with an acidic dye. A salt-forming compound of an acidic dye with a compound having an onium salt group is also preferable because it has excellent fastness. In addition, the compound having an onium salt group is preferably a resin having a cationic group in the side chain.

[0025] The chemical structure of the dye may be, for example, an azo dye, a disazo dye, an azomethine dye (such as an indoaniline dye or an indophenol dye), a dipyrromethene dye, a quinone dye (such as a benzoquinone dye, a naphthoquinone dye, anthraquinone dye, or anthrapyridone dye), a carbonium dye (such as a diphenylmethane dye, a triphenylmethane dye, a xanthene dye, or an acridine dye), a quinoneimine dye (such as an oxazine dye), or a quinoneimine dye (such as an oxazine dye). dyes, thiazine dyes, etc.), azine dyes, polymethine dyes (oxonol dyes, merocyanine dyes, arylidene dyes, styryl dyes, cyanine dyes, squarylium dyes, croconium dyes, etc.), quinophthalone dyes, phthalocyanine dyes, subphthalocyanine dyes, perinone dyes, indigo dyes, thioindigo dyes, quinoline dyes, nitro dyes, nitroso dyes, rhodamine dyes, etc. Among these, from the viewpoint of color characteristics such as hue, color separation, and color unevenness, azo dyes, xanthene dyes, cyanine dyes, triphenylmethane dyes, anthraquinone dyes, dipyrromethene dyes, squarylium dyes, quinophthalone dyes, phthalocyanine dyes, and subphthalocyanine dyes are preferred, and xanthene dyes, cyanine dyes, triphenylmethane dyes, anthraquinone dyes, dipyrromethene dyes, and phthalocyanine dyes are more preferred. Specific structures of dyes are described in "New Edition Dye Handbook" (edited by Organic Synthesis Chemistry Association; Maruzen, 1970), "Color Index" (The Society of Dyers and colourists), "Dye Handbook" (edited by Okawara et al.; Kodansha, 1986), and the like.

[0026] <Resin-type dispersant (B)> The resin-type dispersant (B) in the present invention is characterized by containing two or more kinds of acidic resin-type dispersants (B1) having an acid value of 30 to 80 mgKOH / g. This provides excellent storage stability. In addition, the resin-type dispersant (B1) preferably contains an acidic resin-type dispersant (B1-1) having a polymer moiety in the molecule, the polymer moiety having a glass transition temperature of -30°C or lower. This provides good coating uniformity. Furthermore, the acidic resin-type dispersant (B1-1) is preferably 2 to 10 mass% of the total solid content of the visible light-blocking photosensitive composition. When it is within this range, the coating uniformity is further improved, and in addition, the balance between the adhesion and the resolution of the pattern is most favorable. The resin-type dispersant may also include other resin-type dispersants, such as an acidic resin-type dispersant having an acid value other than 30 to 80 mgKOH / g, or a basic resin-type dispersant having an amine value.

[0027] The glass transition temperature was calculated from the polymer moiety using the following formula. 1 / Tg=W1 / Tg1+W2 / Tg2+···+W n / Tg n (However, from W1 to W n indicates the mass fraction of the n monomers used, and Tg1 to Tg n indicates the glass transition temperature (unit: absolute temperature "K") of a homopolymer (a single polymer of a monomer).

[0028] The acidic dispersant will be described in detail below. [Acidic resin-type dispersant (B1)] The acidic resin-type dispersant (B1) used in the visible light-blocking photosensitive composition of the present invention is preferably an acidic resin-type dispersant represented by any one of the following (b1-1) to (b1-3). (b1-1): A resin-type dispersant which is a reaction product between a hydroxyl group of a polymer having a hydroxyl group at its terminal and an acid anhydride group of a tetracarboxylic dianhydride or a tricarboxylic anhydride, or a resin-type dispersant which has a polymer portion obtained by polymerizing an ethylenically unsaturated monomer in the presence of a reaction product between a hydroxyl group of a compound having a hydroxyl group and an acid anhydride group of a tetracarboxylic dianhydride or a tricarboxylic anhydride. (b1-2): A resin-type dispersant represented by the following general formula (2). General formula (2) (HOOC-) m -R 1 -(-COO-[-R 3 -COO-] n -R 2 ) t (In the formula, R 1 is a tetravalent tetracarboxylic acid compound residue, R 2 is a monoalcohol residue, R 3 represents a lactone residue, m is 2 or 3, n is an integer of 1 to 50, and t is (4-m).

[0029] (b1-3): A resin-type dispersant containing an ethylenically unsaturated monomer having a phosphoric acid group or a sulfonic acid group and another ethylenically unsaturated monomer as a copolymerization component (polymer portion).

[0030] The resin-type dispersants (b1-1) to (b1-3) will be described below. ((b1-1) Resin-type dispersant) A resin-type dispersant described in WO2008 / 007776.

[0031] ((b1-2) Resin-type dispersant) A resin-type dispersant described in JP-A-2007-140487.

[0032] ((b1-3) Resin-type dispersant) Resin-type dispersants described in JP-A-2003-253078 and JP-A-2008-161737.

[0033] (Basic resin type dispersant) The basic resin type dispersant is preferably a dispersant having a functional group including, for example, a primary, secondary, or tertiary amino group, a quaternary ammonium base, or a nitrogen-containing heterocycle. For example, the basic resin type dispersants described in JP-A-2016-122073 and JP-A-5513691 can be preferably used. In addition, the vinyl resin type dispersant having a hindered amine skeleton described in JP-A-2015-110711 is also preferred, and as described in the same publication, it is preferred to use it in combination with an acidic resin type dispersant, as this may further contribute to dispersion stability.

[0034] (Other resin-type dispersants) In the visible light shielding photosensitive composition of the present invention, known resin-type dispersants other than those mentioned above may be used. The resin-type dispersant may be any dispersant that has a colorant affinity site having a property of adsorbing to an added colorant and a site compatible with a colorant carrier, and that functions to adsorb to an added colorant and stabilize the dispersion in the colorant carrier. Specifically, urethane-based dispersants such as polyurethane, polycarboxylates such as polyacrylates, unsaturated polyamides, polycarboxylates, polycarboxylate (partial) amine salts, polycarboxylate ammonium salts, polycarboxylate alkylamine salts, polysiloxanes, long-chain polyaminoamide phosphates, hydroxyl-containing polycarboxylates, and modified products thereof. Examples of the dispersants that can be used include oil-based dispersants such as amides formed by the reaction of poly(lower alkylene imine) with a polyester having a free carboxyl group or salts thereof, water-soluble resins and water-soluble polymer compounds such as (meth)acrylic acid-styrene copolymers, (meth)acrylic acid-(meth)acrylic acid ester copolymers, styrene-maleic acid copolymers, polyvinyl alcohol, and polyvinylpyrrolidone, polyester-based compounds, modified polyacrylate-based compounds, ethylene oxide / propylene oxide adducts, and phosphate-based compounds, and these can be used alone or in combination of two or more types.

[0035] Commercially available resin-type dispersants include Disperbyk-101, 103, 107, 108, 110, 111, 116, 130, 140, 154, 161, 162, 163, 164, 165, 166, 167, 168, 170, 171, 174, 180, 181, 182, 183, 184, 185, 190, 2000, 2001, 2009, 2010, 2020, 2025, 2050, 2070, 2095, 2150, and 215 manufactured by BYK Chemical Japan Co., Ltd. 5, 2163, 2164 or Anti-Terra-U, 203, 204, or BYK-P104, P104S, 220S, LPN6919, BYK-LPN21116, BYK-LPN21324, or Lactimon, Lactimon-WS or Bykumen, SOLSPERSE-3000, 9000, 13000, 13240, 13650, 13940, 16000, 17000, 18000, 20 000, 21000, 24000, 26000, 27000, 28000, 31845, 32000, 32500, 32550, 33500, 32600, 34750, 35100, 36600, 38500, 41000, 41090, 53095, 55000, 56000, 76500, etc., EFKA-46, 47, 48, 452, 4008, 4009, 4010, 4015, 4020, 4047, 4050, 4055, 4060, 40 80, 4400, 4401, 4402, 4403, 4406, 4408, 4300, 4310, 4320, 4330, 4340, 450, 451, 453, 4540, 4550, 4560, 4800, 5010, 5065, 5066, 5070, 7500, 7554, 1101, 120, 150, 1501, 1502, 1503, etc., and Ajispa-PA111, PB711, PB821, PB822, PB824, etc. manufactured by Ajinomoto Fine-Techno Co., Ltd.

[0036] The resin-type dispersant is preferably used in an amount of about 3 to 200% by weight based on the total amount of the colorant, and from the viewpoint of film-forming properties, more preferably about 5 to 100% by weight.

[0037] <Dye derivatives> The visible light-blocking photosensitive composition may contain a dye derivative, if necessary. The dye derivative is a compound having an acidic group, a basic group, a neutral group, or the like in an organic dye residue.

[0038] By adding a dye derivative to a pigment and carrying out a micronization treatment such as acid pasting, acid slurry, dry milling, salt milling, or solvent salt milling, the dye derivative is adsorbed onto the pigment surface, and the primary particles of the pigment can be made finer than when the dye derivative is not added.

[0039] Examples of dye derivatives include compounds having an acidic substituent such as a sulfo group, a carboxy group, or a phosphate group, as well as amine salts thereof, sulfonamide groups, or compounds having basic substituents such as a tertiary amino group at the terminal, and compounds having a neutral substituent such as a phenyl group or a phthalimidoalkyl group. Examples of the organic pigment include diketopyrrolopyrrole pigments, anthraquinone pigments, quinacridone pigments, dioxazine pigments, perinone pigments, perylene pigments, thiazineindigo pigments, triazine pigments, benzimidazolone pigments, and indole pigments such as benzoisoindole. Examples of pigments include phenol-based pigments, isoindoline-based pigments, isoindolinone-based pigments, quinophthalone-based pigments, naphthol-based pigments, threne-based pigments, metal complex-based pigments, and azo-based pigments such as azo, disazo, and polyazo.

[0040] Specifically, diketopyrrolopyrrole dye derivatives are described in JP 2001-220520 A, WO 2009 / 081930 B, WO 2011 / 052617 B, WO 2012 / 102399 B, and JP 2017-156397 A; phthalocyanine dye derivatives are described in JP 2007-226161 A, WO 2016 / 163351 B, JP 2017-165820 B, and Japanese Patent No. 5753266 A; and anthraquinone dye derivatives are described in JP-A-63-264674, JP-A-09-272812, JP-A-10-245501, JP-A-10-265697, JP-A-2007-079094, WO2009 / 025325 pamphlet; quinacridone dye derivatives are disclosed in JP-A-48-54128, JP-A-03-9961, JP-A-2000-273383; dioxazine dye derivatives are disclosed in JP-A-2011-162662; thiazine indigo dye derivatives are disclosed in JP-A-2007-3147 85, triazine-based dye derivatives are disclosed in JP-A-61-246261, JP-A-11-199796, JP-A-2003-165922, JP-A-2003-168208, JP-A-2004-217842, and JP-A-2007-314681, benzoisoindole-based dye derivatives are disclosed in JP-A-2009-57478, quinophthalone-based dye derivatives are disclosed in JP-A-2003-167112, JP-A-2006-291194, JP-A-2008-31281, and JP-A-2007-314681. Examples of naphthol-based dye derivatives include those described in JP-A-2012-208329 and JP-A-2014-5439, examples of azo-based dye derivatives include those described in JP-A-2001-172520 and JP-A-2012-172092, examples of acidic substituents include those described in JP-A-2004-307854, and examples of basic substituents include those described in JP-A-2002-201377, JP-A-2003-171594, JP-A-2005-181383, and JP-A-2005-213404. In these documents, the dye derivative may be referred to as a derivative, a pigment derivative, a dispersant, a pigment dispersant, or simply as a compound, but the compound having a substituent such as an acidic group, a basic group, or a neutral group in the organic dye residue is synonymous with the dye derivative.

[0041] The dye derivatives can be used alone or in combination of two or more kinds.

[0042] The amount of the dye derivative used is preferably from 1 to 100 parts by mass, more preferably from 3 to 70 parts by mass, and even more preferably from 5 to 50 parts by mass, relative to 100 parts by mass of the colorant.

[0043] By adding a dye derivative to the colorant (A) and carrying out a dispersion treatment such as wet dispersion using a two-roll roller, a three-roll roller, or beads, the dye derivative is adsorbed onto the pigment surface, the pigment surface has polarity, and adsorption of the resin-type dispersant is promoted, and compatibility with the pigment, the dye derivative, the resin-type dispersant, the solvent, and other additives is improved, and the dispersion stability and viscosity stability over time when the light-shielding photosensitive composition is formed are improved. In addition, the improved compatibility provides excellent stability over time of the coating film when the colored curable composition is applied to a glass substrate, etc., and the stability and characteristics dependency of the pattern shape on the waiting time from application to exposure (PCD: Post Coating Delay) and the waiting time from exposure to heat treatment (PED: Post Exposure Delay) of the visible light-shielding photosensitive composition, and line width sensitivity stability are improved. In addition, by adsorbing and covering the pigment surface with the dye derivative and the resin-type dispersant, it is possible to suppress the aggregation of the pigment and the crystal precipitation due to sublimation when the coating film is heated and baked. Furthermore, the variation in development time and development residue are also suppressed.

[0044] <Fine particle size of colorant (A)> The colorant (A) is preferably used in a finely divided form in order to increase the transmittance in the infrared region. The method for the finely divided form is not particularly limited, and examples thereof include wet grinding, dry grinding, and dissolution and precipitation. Among these, salt milling treatment using a kneader method, which is a type of wet grinding, is preferred. The average primary particle size of the pigment as determined by TEM (transmission electron microscope) is preferably 5 to 90 nm, more preferably 10 to 70 nm. If the pigment has an appropriate particle size, dispersibility is improved, and the contrast ratio is also improved.

[0045] Salt milling is a process in which a mixture of a pigment, a water-soluble inorganic salt, and a water-soluble organic solvent is mechanically kneaded while being heated using a batch or continuous kneader such as a kneader, a two-roll mill, a three-roll mill, a ball mill, an attritor, a sand mill, or a planetary mixer, and then the water-soluble inorganic salt and the water-soluble organic solvent are removed by washing with water. The water-soluble inorganic salt acts as a crushing aid, and the pigment is crushed during salt milling by utilizing the high hardness of the inorganic salt. By optimizing the conditions for salt milling the pigment, it is possible to obtain a pigment with a very fine primary particle size, a narrow distribution width, and a sharp particle size distribution.

[0046] Examples of the water-soluble inorganic salt include sodium chloride, potassium chloride, sodium sulfate, etc. Among these, inexpensive sodium chloride (table salt) is preferable. From the viewpoints of both treatment efficiency and production efficiency, the water-soluble inorganic salt is preferably used in an amount of 50 to 2000 parts by mass, more preferably 300 to 1000 parts by mass, per 100 parts by mass of the pigment.

[0047] The water-soluble organic solvent is not particularly limited as long as it functions to wet the pigment and the water-soluble inorganic salt, dissolves (mixes) in water, and does not substantially dissolve the inorganic salt used. However, since the temperature rises during salt milling and the solvent becomes prone to evaporate, a high boiling point solvent with a boiling point of 120°C or more is preferable from the viewpoint of safety. For example, 2-methoxyethanol, 2-butoxyethanol, 2-(isopentyloxy)ethanol, 2-(hexyloxy)ethanol, diethylene glycol, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, triethylene glycol, triethylene glycol monomethyl ether, liquid polyethylene glycol, 1-methoxy-2-propanol, 1-ethoxy-2-propanol, dipropylene glycol, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, liquid polypropylene glycol, etc. are used. The water-soluble organic solvent is preferably used in an amount of 5 to 1000 parts by mass, more preferably 50 to 500 parts by mass, relative to 100 parts by mass of the pigment.

[0048] When the pigment is subjected to salt milling, a resin may be added as necessary. The type of resin used is not particularly limited, and examples thereof include natural resins, modified natural resins, synthetic resins, and synthetic resins modified with natural resins. The resin used is preferably solid at room temperature and insoluble in water, and more preferably partially soluble in the organic solvent. The amount of the resin used is preferably 5 to 200 parts by mass relative to 100 parts by mass of the pigment.

[0049] <Binder resin> The visible light-shielding photosensitive composition of the present invention can contain a binder resin. The binder resin is a resin having a transmittance of 80% or more in the entire wavelength range of 400 to 700 nm when a coating film having a thickness of 2 μm is formed. The transmittance is preferably 95% or more. In terms of curability, the binder resin may be, for example, a thermoplastic resin or an active energy ray curable resin. The active energy ray curable resin is a thermoplastic resin having an active energy ray reactive functional group. In terms of physical properties, the binder resin is preferably an alkali-soluble resin from the viewpoint of developability. The alkali solubility is for imparting development solubility in an alkali development step during the production of a color filter, and an acidic group is necessary.

[0050] <Thermoplastic resin> Examples of the thermoplastic resin include acrylic resin, butyral resin, and styrene-maleic acid copolymer. Polymers, chlorinated polyethylene, chlorinated polypropylene, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, polyvinyl acetate, polyurethane resins, polyester resins, vinyl resins, alkyd resins, polystyrene resins, polyamide resins, rubber resins, cyclized rubber resins, cellulose, polyethylene (HDPE, LDPE), polybutadiene, and polyimide resins, etc. Examples of the alkali-soluble thermoplastic resin include resins having an acidic group such as a carboxyl group or a sulfonic group. Examples of the alkali-soluble thermoplastic resin include acrylic resins having an acidic group, α-olefin / maleic acid (anhydride) copolymers, styrene / styrene sulfonic acid copolymers, ethylene / (meth)acrylic acid copolymers, and isobutylene / maleic acid (anhydride) copolymers. Among these, acrylic resins having an acidic group and styrene / styrene sulfonic acid copolymers are preferred in terms of improving developability, heat resistance, and transparency.

[0051] <Active energy ray-curable alkali-soluble resin> The active energy ray-curable alkali-soluble resin preferably has a polymerizable unsaturated group. The polymerizable unsaturated group can be introduced, for example, by the following method (i) or (ii). The effect of the energy rays causes the resin to undergo three-dimensional cross-linking, increasing the cross-link density and improving chemical resistance.

[0052] [Method (i)] In the method (i), for example, a carboxyl group of a monocarboxylic acid monomer is added to a side-chain epoxy group of a copolymer obtained by copolymerizing an epoxy group-containing monomer with another monomer, and then a polybasic acid anhydride is reacted with the generated hydroxyl group to introduce a polymerizable unsaturated group and a carboxyl group.

[0053] Examples of the epoxy group-containing monomer include glycidyl (meth)acrylate, methyl glycidyl (meth)acrylate, 2-glycidoxyethyl (meth)acrylate, 3,4-epoxybutyl (meth)acrylate, and 3,4-epoxycyclohexyl (meth)acrylate. Among these, glycidyl (meth)acrylate is preferred from the viewpoint of reactivity with monocarboxylic acid monomers.

[0054] Examples of the monocarboxylic acid monomer include monocarboxylic acids such as (meth)acrylic acid, crotonic acid, o-, m-, and p-vinylbenzoic acid, and (meth)acrylic acid substituted with haloalkyl, alkoxyl, halogen, nitro, or cyano at the α-position.

[0055] Examples of the polybasic acid anhydride include tricarboxylic acid anhydrides such as tetrahydrophthalic anhydride, phthalic anhydride, hexahydrophthalic anhydride, succinic anhydride, maleic anhydride, and trimellitic anhydride, and tetracarboxylic acid dianhydrides such as pyromellitic dianhydride.

[0056] Examples of other monomers include (meth)acrylates such as methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, isobutyl (meth)acrylate, t-butyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, cyclohexyl (meth)acrylate, stearyl (meth)acrylate, lauryl (meth)acrylate, tetrahydrofurfuryl (meth)acrylate, isobornyl (meth)acrylate, phenyl (meth)acrylate, benzyl (meth)acrylate, phenoxyethyl (meth)acrylate, phenoxydiethylene glycol (meth)acrylate, methoxypolypropylene glycol (meth)acrylate, and ethoxypolyethylene glycol (meth)acrylate; Alternatively, examples of the monomer include (meth)acrylamide, N,N-dimethyl(meth)acrylamide, N,N-diethyl(meth)acrylamide, N-isopropyl(meth)acrylamide, diacetone(meth)acrylamide, and acryloylmorpholine; styrenes such as styrene and α-methylstyrene; vinyl ethers such as ethyl vinyl ether, n-propyl vinyl ether, isopropyl vinyl ether, n-butyl vinyl ether, and isobutyl vinyl ether; and fatty acid vinyls such as vinyl acetate and vinyl propionate.

[0057] Alternatively, cyclohexylmaleimide, phenylmaleimide, methylmaleimide, ethylmaleimide, 1,2-bismaleimidoethane 1,6-bismaleimidohexane, 3-maleimidopropionic acid, 6,7-methylenedioxy-4-methyl-3-maleimidocoumarin, 4,4'-bismaleimidodiphenylmethane, bis(3-ethyl-5-methyl-4-maleimidophenyl)methane, N,N'-1,3-phenylenedimaleimide, N,N'-1,4-phenylenedimaleimide, N-(1-pyrenyl)maleimide, N-(2,4,6-trichlorophenyl)maleimide, N-(4-aminophenyl)maleimide, N-(4-nitrophenyl)maleimide, N-benzylmaleimide, N-bromomethyl-2,3-dichloromaleimide, N-succinimidyl-3-maleimide Examples of the polyimide include N-substituted maleimides such as imidobenzoate, N-succinimidyl-3-maleimidopropionate, N-succinimidyl-4-maleimidobutyrate, N-succinimidyl-6-maleimidohexanoate, N-[4-(2-benzimidazolyl)phenyl]maleimide and 9-maleimidoacridine, EO-modified cresol acrylate, n-nonylphenoxy polyethylene glycol acrylate, phenoxyethyl acrylate, ethoxylated phenyl acrylate, ethylene oxide (EO)-modified (meth)acrylate of phenol, EO- or propylene oxide (PO)-modified (meth)acrylate of paracumylphenol, EO-modified (meth)acrylate of nonylphenol, and PO-modified (meth)acrylate of nonylphenol.

[0058] As a method similar to the method (i), for example, there is a method in which a polymerizable unsaturated group and a carboxyl group are introduced by addition reaction of an epoxy group of an epoxy group-containing monomer with a part of the side chain carboxyl groups of a copolymer obtained by copolymerizing a monocarboxylic acid monomer with another monomer.

[0059] [Method (ii)] Method (ii) is a method in which a hydroxyl group in a side chain of a copolymer obtained by copolymerizing a hydroxyl group-containing monomer with another monomer is reacted with an isocyanate group of an isocyanate group-containing monomer.

[0060] Examples of the hydroxyl group-containing monomer include hydroxyalkyl methacrylates such as 2-hydroxyethyl (meth)acrylate, 2- or 3-hydroxypropyl (meth)acrylate, 2-, 3- or 4-hydroxybutyl (meth)acrylate, glycerol mono(meth)acrylate, and cyclohexanedimethanol mono(meth)acrylate. Other examples include polyether mono(meth)acrylate obtained by addition polymerization of ethylene oxide, propylene oxide, and / or butylene oxide to a hydroxyalkyl (meth)acrylate, and polyester mono(meth)acrylate obtained by addition of polyγ-valerolactone, polyε-caprolactone, and / or poly12-hydroxystearic acid. From the viewpoint of suppressing foreign matter in the coating, 2-hydroxyethyl methacrylate or glycerol mono(meth)acrylate is preferred, and from the viewpoint of sensitivity, it is preferred to use a monomer having 2 to 6 hydroxyl groups, and glycerol mono(meth)acrylate is more preferred.

[0061] Examples of the isocyanate group-containing monomer include 2-(meth)acryloylethyl isocyanate, 2-(meth)acryloyloxyethyl isocyanate, and 1,1-bis[methacryloyloxy]ethyl isocyanate.

[0062] Examples of the other monomer include, in addition to the other monomers already described, N-substituted maleimides, alkyleneoxy group-containing monomers, phosphate ester group-containing monomers, carboxyl group-containing ethylenically unsaturated monomers, and the like. Examples of N-substituted maleimides include cyclohexylmaleimide, phenylmaleimide, methylmaleimide, ethylmaleimide, 1,2-bismaleimideethane, 1,6-bismaleimidehexane, 3-maleimidepropionic acid, 6,7-methylenedioxy-4-methyl-3-maleimide coumarin, 4,4'-bismaleimidediphenylmethane, bis(3-ethyl-5-methyl-4-maleimidephenyl)methane, N,N'-1,3-phenylenedimaleimide, N,N'-1,4-phenylenedimaleimide, N-(1-pyrenyl)maleimide, N-( 2,4,6-trichlorophenyl)maleimide, N-(4-aminophenyl)maleimide, N-(4-nitrophenyl)maleimide, N-benzylmaleimide, N-bromomethyl-2,3-dichloromaleimide, N-succinimidyl-3-maleimide benzoate, N-succinimidyl-3-maleimide propionate, N-succinimidyl-4-maleimide butyrate, N-succinimidyl-6-maleimide hexanoate, N-[4-(2-benzimidazolyl)phenyl]maleimide, 9-maleimide acridine and the like. Examples of the alkyleneoxy group-containing monomer include EO-modified cresol acrylate, n-nonylphenoxy polyethylene glycol acrylate, phenoxyethyl acrylate, ethoxylated phenyl acrylate, ethylene oxide (EO)-modified (meth)acrylate of phenol, EO- or propylene oxide (PO)-modified (meth)acrylate of paracumylphenol, EO-modified (meth)acrylate of nonylphenol, and PO-modified (meth)acrylate of nonylphenol.

[0063] As the monocarboxylic acid monomer, the monomers already explained can be used.

[0064] The phosphate group-containing monomer is, for example, a compound obtained by reacting the hydroxyl group of the above-mentioned hydroxyl group-containing monomer with a phosphate esterifying agent such as phosphorus pentoxide or polyphosphoric acid.

[0065] <Alkali-soluble resin having no polymerizable unsaturated group> The visible light-blocking photosensitive composition of the present invention can contain, as a binder resin, an alkali-soluble resin having no polymerizable unsaturated group in order to adjust the degree of hardening of the coating.

[0066] The weight average molecular weight (Mw) of the alkali-soluble resin is preferably from 2,000 to 40,000, more preferably from 3,000 to 30,000, and even more preferably from 4,000 to 20,000, in terms of solubility in alkaline development. The Mw / Mn value is preferably 10 or less. A suitable weight average molecular weight (Mw) improves the adhesion of the coating to the substrate and improves the solubility in alkaline development.

[0067] The acid value of the alkali-soluble resin is preferably from 50 to 200 (mgKOH / g) in terms of solubility in alkaline development, more preferably from 70 to 180, and even more preferably from 90 to 170. A suitable acid value improves the solubility in alkaline development and improves adhesion to the substrate.

[0068] Each of the raw materials used in the synthesis of the binder resin can be used alone or in combination of two or more kinds.

[0069] The binder resin can be used alone or in combination of two or more kinds. In this specification, by using an alkali-soluble resin having a polymerizable unsaturated group and an alkali-soluble resin not having a polymerizable unsaturated group in combination, the degree of photocuring in the coating film is controlled, and the adhesion of the fine line pattern after development is improved.

[0070] The content of the binder resin is preferably 20 to 400 parts by mass with respect to 100 parts by mass of the colorant. The content is preferably 50 to 250 parts by mass. When an appropriate amount is contained, a coating can be easily formed and good color characteristics can be easily obtained.

[0071] <Thermosetting compounds> The light-blocking photosensitive composition may further contain a thermosetting compound, which improves the strength of the coating after post-baking.

[0072] The thermosetting compound may be a low molecular weight compound or a high molecular weight compound such as a resin. Examples of the thermosetting compound include epoxy compounds, oxetane compounds, benzoguanamine compounds, rosin-modified maleic acid compounds, rosin-modified fumaric acid compounds, melamine compounds, urea compounds, and phenol compounds. Among these, epoxy compounds and oxetane compounds are preferred.

[0073] <Polymerizable compound (C)> The polymerizable compound (C) is a monomer or oligomer having a polymerizable unsaturated group. Examples of the polymerizable compound (C) include an acid group-containing monomer, a urethane bond-containing monomer, and other monomers.

[0074] Examples of the acid group of the acid group-containing monomer include a sulfonic acid group, a carboxyl group, and a phosphoric acid group.

[0075] Examples of the acid group-containing monomer include esters of free hydroxyl group-containing poly(meth)acrylates of polyhydric alcohols and (meth)acrylic acid with dicarboxylic acids; esters of polycarboxylic acids with monohydroxyalkyl (meth)acrylates; and the like. Specific examples include free carboxyl group-containing monoesters of monohydroxy oligoacrylates or monohydroxy oligomethacrylates, such as trimethylolpropane diacrylate, trimethylolpropane dimethacrylate, pentaerythritol triacrylate, pentaerythritol trimethacrylate, dipentaerythritol pentaacrylate, and dipentaerythritol pentamethacrylate, with dicarboxylic acids, such as malonic acid, succinic acid, glutaric acid, and phthalic acid; and free carboxyl group-containing oligoesters of tricarboxylic acids, such as propane-1,2,3-tricarboxylic acid (tricarballylic acid), butane-1,2,4-tricarboxylic acid, benzene-1,2,3-tricarboxylic acid, benzene-1,3,4-tricarboxylic acid, and benzene-1,3,5-tricarboxylic acid, with monohydroxy monoacrylates or monohydroxy monomethacrylates, such as 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, and 2-hydroxypropyl methacrylate.

[0076] (Urethane bond-containing monomer) Examples of the urethane bond-containing monomer include polyfunctional urethane acrylates obtained by reacting a (meth)acrylate having a hydroxyl group with a polyfunctional isocyanate, and polyfunctional urethane acrylates obtained by reacting an alcohol with a polyfunctional isocyanate and further reacting the alcohol with a (meth)acrylate having a hydroxyl group.

[0077] Examples of the (meth)acrylate having a hydroxyl group include 2-hydroxyethyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, trimethylolpropane di(meth)acrylate, pentaerythritol tri(meth)acrylate, ditrimethylolpropane tri(meth)acrylate, dipentaerythritol penta(meth)acrylate, dipentaerythritol ethylene oxide modified penta(meth)acrylate, dipentaerythritol propylene oxide modified penta(meth)acrylate, dipentaerythritol caprolactone modified penta(meth)acrylate, glycerol acrylate methacrylate, glycerol dimethacrylate, 2-hydroxy-3-acryloylpropyl methacrylate, a reaction product of an epoxy group-containing compound and a carboxy(meth)acrylate, and a hydroxyl group-containing polyol polyacrylate.

[0078] Examples of the polyfunctional isocyanate include tolylene diisocyanate, hexamethylene diisocyanate, diphenylmethylene diisocyanate, isophorone diisocyanate, and polyisocyanate.

[0079] Other monomers include, for example, methyl (meth)acrylate, ethyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, cyclohexyl (meth)acrylate, β-carboxyethyl (meth)acrylate, polyethylene glycol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate, triethylene glycol di(meth)acrylate, polypropylene glycol di(meth)acrylate, trimethylolpropane tri(meth)acrylate, phenoxytetraethylene glycol (meth)acrylate, phenoxyhexaethylene glycol (meth)acrylate, trimethylolpropane PO modified tri(meth)acrylate, trimethylolpropane EO modified tri(meth)acrylate, isocyanuric acid EO modified di(meth)acrylate, isocyanuric acid EO modified tri(meth)acrylate, ditrimethylolpropane tetra(meth)acrylate, Examples of the acrylic acid esters and methacrylic acid esters include pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, 1,6-hexanediol diglycidyl ether di(meth)acrylate, bisphenol A diglycidyl ether di(meth)acrylate, neopentyl glycol diglycidyl ether di(meth)acrylate, dipentaerythritol hexa(meth)acrylate, dipentaerythritol penta(meth)acrylate, tricyclodecanyl (meth)acrylate, (meth)acrylic acid ester of methylolated melamine, epoxy (meth)acrylate, and urethane acrylate, as well as (meth)acrylic acid, styrene, vinyl acetate, hydroxyethyl vinyl ether, ethylene glycol divinyl ether, pentaerythritol trivinyl ether, (meth)acrylamide, N-hydroxymethyl (meth)acrylamide, N-vinyl formamide, and acrylonitrile.

[0080] The polymerizable compound (C) can be used alone or in combination of two or more kinds.

[0081] The content of the polymerizable compound (C) is preferably from 1 to 50 mass%, more preferably from 2 to 40 mass%, based on 100 mass% of the nonvolatile content of the visible light-blocking photosensitive composition. When an appropriate amount is added, the curability and developability are further improved.

[0082] <Photopolymerization initiator (D)> Examples of the photopolymerization initiator (D) that can be used in the present invention include 4-phenoxydichloroacetophenone, 4-t-butyl-dichloroacetophenone, diethoxyacetophenone, 1-(4-isopropylphenyl)-2-hydroxy-2-methylpropan-1-one, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinopropan-1-one, 2-(dimethylamino)-1-[4-(4-morpholino)phenyl]-2-(phenylmethyl)-1-butanone, and 2-(dimethylamino) acetophenone compounds such as -2-[(4-methylphenyl)methyl]-1-[4-(4-morpholinyl)phenyl]-1-butanone; benzoin compounds such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and benzil dimethyl ketal; benzophenone, benzoylbenzoic acid, benzoylbenzoic acid methyl, 4-phenylbenzophenone, hydroxybenzophenone, acrylated benzophenone, 4-benzoyl-4'-methyldiphenyl sulfide, and 3,3',4,4'-tetrabenzoyl benzophenone compounds such as tetra(t-butylperoxycarbonyl)benzophenone; thioxanthone, 2-chlorothioxanthone, 2-methylthioxanthone, isopropylthioxanthone, 2,4-diisopropylthioxanthone, or 2,4-diethylthioxanthone; 2,4,6-trichloro-s-triazine, 2-phenyl-4,6-bis(trichloromethyl)-s-triazine, 2-(p-methoxyphenyl)-4,6-bis(trichloromethyl)-s-triazine, 2-(p-tolyl)-4,6-bis(trichloromethyl)-s-triazine, triazine-based compounds such as s(trichloromethyl)-s-triazine, 2-piperonyl-4,6-bis(trichloromethyl)-s-triazine, 2,4-bis(trichloromethyl)-6-styryl-s-triazine, 2-(naphth-1-yl)-4,6-bis(trichloromethyl)-s-triazine, 2-(4-methoxy-naphth-1-yl)-4,6-bis(trichloromethyl)-s-triazine, 2,4-trichloromethyl-(piperonyl)-6-triazine, or 2,4-trichloromethyl-(4'-methoxystyryl)-6-triazine;Examples of suitable oxime ester compounds include 1,2-octanedione, 1-[4-(phenylthio)phenyl-, 2-(O-benzoyloxime)], or ethanone, 1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]-, 1-(O-acetyloxime); phosphine compounds such as bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide or diphenyl-2,4,6-trimethylbenzoylphosphine oxide; quinone compounds such as 9,10-phenanthrenequinone, camphorquinone, and ethylanthraquinone; borate compounds; carbazole compounds; imidazole compounds; or titanocene compounds. Among these, oxime ester compounds are preferred.

[0083] (Oxime ester compounds) In oxime ester compounds, the NO bond of the oxime is cleaved by absorbing ultraviolet light, generating iminyl radicals and alkyloxy radicals. These radicals further decompose to generate highly active radicals, allowing patterns to be formed with a small amount of exposure. When the colorant concentration of the light-blocking photosensitive composition is high, the ultraviolet transmittance of the coating film may decrease, resulting in a low degree of curing of the coating film, but oxime ester compounds are preferably used because they have high quantum efficiency.

[0084] Examples of the oxime ester compound include oxime ester photopolymerization initiators described in JP2007-210991A, JP2009-179619A, JP2010-037223A, JP2010-215575A, JP2011-020998A, etc. In particular, it is preferable to contain a compound represented by the following general formula (1) in order to fully exert the effects of the present invention. General formula (1) [ka] [In the general formula (1), X 1 , X 3 and X 6 are each independently R11 , OR 11 , C.O.R. 11 , S.R. 11 ,CONR 12 R 13 or CN, X 2 represents an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted aryl group having 6 to 30 carbon atoms, an optionally substituted arylalkyl group having 7 to 30 carbon atoms, or an optionally substituted heterocyclic group having 2 to 20 carbon atoms; X 4 and X 5 are each independently R 11 , OR 11 , S.R. 11 , C.O.R. 11 ,CONR 12 R 13 , N.R. 12 COR 11 , O.C.O.R. 11 , COOR 11 , SCOR 11 , C.O.S.R. 11 , C.O.S.R. 11 , C.S.O.R. 11 , CN, a halogen atom or a hydroxyl group. 11 , R 12 and R 13 each independently represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms which may have a substituent, an aryl group having 6 to 30 carbon atoms which may have a substituent, an arylalkyl group having 7 to 30 carbon atoms which may have a substituent, or a heterocyclic group having 2 to 20 carbon atoms which may have a substituent. a and b each independently represent an integer of 0 to 3.]

[0085] Examples of the compound represented by the general formula (1) include the following compounds.

[0086] [ka]

[0087] [ka]

[0088] The photopolymerization initiators can be used alone or in combination of two or more kinds.

[0089] The content of the photopolymerization initiator is preferably 2 to 50 parts by mass, and more preferably 2 to 30 parts by mass, based on 100 parts by mass of the colorant. When an appropriate amount is added, the photocurability and developability are further improved.

[0090] <Sensitizer> The visible light-blocking photosensitive composition can contain a sensitizer. Examples of the sensitizer include polymethine dyes such as chalcone derivatives, unsaturated ketones typified by dibenzalacetone, 1,2-diketone derivatives typified by benzil and camphorquinone, benzoin derivatives, fluorene derivatives, naphthoquinone derivatives, anthraquinone derivatives, xanthene derivatives, thioxanthene derivatives, xanthone derivatives, thioxanthone derivatives, coumarin derivatives, ketocoumarin derivatives, cyanine derivatives, merocyanine derivatives, and oxonol derivatives, acridine derivatives, azine derivatives, thiazine derivatives, oxazine derivatives, indoline derivatives, azulene derivatives, azulenium derivatives, squarylium derivatives, porphyrin derivatives, tetraphenylporphyrin derivatives, triarylmethane derivatives, tetrabenzoporphyrin derivatives, and tetrapyrazinoporphyrazine derivatives. , phthalocyanine derivatives, tetraazaporphyrazine derivatives, tetraquinoxalyloporphyrazine derivatives, naphthalocyanine derivatives, subphthalocyanine derivatives, pyrylium derivatives, thiopyrylium derivatives, tetraphylline derivatives, annulene derivatives, spiropyran derivatives, spirooxazine derivatives, thiospiropyran derivatives, metal arene complexes, organic ruthenium complexes, or Michler's ketone derivatives, α-acyloxy esters, acylphosphine oxides, methylphenyl glyoxylates, benzyl, 9,10-phenanthrenequinone, camphorquinone, ethyl anthraquinone, 4,4'-diethylisophthalophenone, 3,3' or 4,4'-tetra(t-butylperoxycarbonyl)benzophenone, 4,4'-bis(diethylamino)benzophenone, and the like.

[0091] Among these, thioxanthone derivatives, Michler's ketone derivatives, and carbazole derivatives are preferred, and 2,4-diethylthioxanthone, 2-chlorothioxanthone, 2,4-dichlorothioxanthone, 2-isopropylthioxanthone, 4-isopropylthioxanthone, 1-chloro-4-propoxythioxanthone, 4,4'-bis(dimethylamino)benzophenone, 4,4'-bis(diethylamino)benzophenone, 4,4'-bis(ethylmethylamino)benzophenone, N-ethylcarbazole, 3-benzoyl-N-ethylcarbazole, 3,6-dibenzoyl-N-ethylcarbazole, and the like are more preferred.

[0092] The sensitizers can be used alone or in combination of two or more kinds.

[0093] The content of the sensitizer is preferably 3 to 60 parts by mass, and more preferably 5 to 50 parts by mass, based on 100 parts by mass of the photopolymerization initiator. When an appropriate amount is contained, the curability and developability are further improved.

[0094] <Thiol-based chain transfer agents> The visible light-shielding photosensitive composition may contain a chain transfer agent. The chain transfer agent is preferably a thiol-based chain transfer agent. When the thiol-based chain transfer agent is used in combination with a photopolymerization initiator, a thiyl radical that is not easily inhibited by oxygen during radical polymerization after irradiation with light is generated, and the sensitivity of the visible light-shielding photosensitive composition is improved.

[0095] The thiol chain transfer agent is preferably a polyfunctional thiol having two or more thiol groups (SH groups). It is more preferable that the thiol chain transfer agent has four or more SH groups. As the number of functional groups increases, the coating becomes easier to photocure from the surface to the deepest part.

[0096] Examples of polyfunctional thiols include hexanedithiol, decanedithiol, 1,4-butanediol bisthiopropionate, 1,4-butanediol bisthioglycolate, ethylene glycol bisthioglycolate, ethylene glycol bisthiopropionate, trimethylolpropane tristhioglycolate, trimethylolpropane tristhiopropionate, trimethylolpropane tris(3-mercaptobutyrate), pentaerythritol tetrakisthioglycolate, pentaerythritol tetrakisthioglycolate, and ethylene glycol bisthiopropionate. Examples of the thiopropionate include erythritol tetrakisthiopropionate, trimercaptopropionic acid tris(2-hydroxyethyl)isocyanurate, 1,4-dimethylmercaptobenzene, 2,4,6-trimercapto-s-triazine, 2-(N,N-dibutylamino)-4,6-dimercapto-s-triazine, and preferably, ethylene glycol bisthiopropionate, trimethylolpropane tristhiopropionate, and pentaerythritol tetrakisthiopropionate.

[0097] The thiol chain transfer agents can be used alone or in combination of two or more kinds.

[0098] The content of the thiol chain transfer agent is preferably 0.1 to 10 mass %, more preferably 0.1 to 3 mass %, based on 100 mass % of the nonvolatile content of the visible light-blocking photosensitive composition. When an appropriate amount is contained, the photosensitivity and taper shape are improved, and wrinkles are less likely to occur on the coating surface.

[0099] <Polymerization inhibitor> The visible light-blocking photosensitive composition may contain a polymerization inhibitor. Examples of the polymerization inhibitor include alkyl catechol compounds such as catechol, resorcinol, 1,4-hydroquinone, 2-methyl catechol, 3-methyl catechol, 4-methyl catechol, 2-ethyl catechol, 3-ethyl catechol, 4-ethyl catechol, 2-propyl catechol, 3-propyl catechol, 4-propyl catechol, 2-n-butyl catechol, 3-n-butyl catechol, 4-n-butyl catechol, 2-tert-butyl catechol, 3-tert-butyl catechol, 4-tert-butyl catechol, and 3,5-di-tert-butyl catechol; 2-methyl resorcinol, 4-methyl resorcinol, 2-ethyl resorcinol, 4-ethyl resorcinol, 2-propyl resorcinol, 4-propyl resorcinol, and 2-n-butyl Examples of the alkyl resorcinol compounds include alkyl resorcinol compounds such as n-butyl resorcinol, 4-n-butyl resorcinol, 2-tert-butyl resorcinol, and 4-tert-butyl resorcinol; alkyl hydroquinone compounds such as methyl hydroquinone, ethyl hydroquinone, propyl hydroquinone, tert-butyl hydroquinone, and 2,5-di-tert-butyl hydroquinone; phosphine compounds such as tributyl phosphine, trioctyl phosphine, tricyclohexyl phosphine, triphenyl phosphine, and tribenzyl phosphine; phosphine oxide compounds such as trioctyl phosphine oxide and triphenyl phosphine oxide; phosphite compounds such as triphenyl phosphite and trisnonylphenyl phosphite; pyrogallol; and phloroglucine.

[0100] The content of the polymerization inhibitor is preferably 0.01 to 0.4 parts by mass based on 100% by mass of the nonvolatile content of the visible light-blocking photosensitive composition. By including an appropriate amount of the polymerization inhibitor, the resolution of the pattern can be further improved.

[0101] <Ultraviolet absorbing agent> The visible light-shielding photosensitive composition of the present invention may contain an ultraviolet absorbing agent. Examples of the ultraviolet absorbing agent include benzotriazole-based compounds, triazine-based compounds, benzophenone-based compounds, salicylic acid ester-based compounds, cyanoacrylate-based compounds, and salicylate-based compounds. The ultraviolet absorbing agent may be a low molecular weight compound or a polymer.

[0102] Benzotriazole compounds include, for example, 2-(5-methyl-2-hydroxyphenyl)benzotriazole, 2-(2-hydroxy-5-t-butylphenyl)-2H-benzotriazole, 2-[2-hydroxy-3,5-bis(α,α-dimethylbenzyl)phenyl]-2H-benzotriazole, 2-(3-t-butyl-5-methyl-2-hydroxyphenyl)-5-chlorobenzotriazole, 2-(2'-hydroxy-5'-t-octylphenyl)benzotriazole, 5% by mass of 2-methoxy-1-methylethyl A mixture of benzenepropanoic acid, 3-(2H-benzotriazol-2-yl)-(1,1-dimethylethyl)-4-hydroxy, C7-9 side and linear alkyl esters with 95% by weight of benzopropanoic acid, 3-(2H-benzotriazol-2-yl)-(1,1-dimethylethyl)-4-hydroxy, C7-9 side and linear alkyl esters, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol, 2-(2H-benzotriazol-2-yl)-6-(1-methyl-1-phenylethyl)-4-(1,1,3,3-tetramethylbutyl)phenol, methyl 3-(3-(2H-benzotriazol-2-yl)- )-5-t-butyl-4-hydroxyphenyl)propionate / polyethylene glycol 300 reaction products, 2-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol, 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol], 2-(2H-benzotriazol-2-yl)-p-cresol, 2-(5-chloro-2H-benzotriazol-2-yl)-6-t-butyl-4-methylphenol 2-(3,5-di-t-amyl-2-hydroxyphenyl)benzotriazole, 2-[2-hydroxy-5-[2-(methacryloyloxy)ethyl]phenyl]-2H-benzotriazole, octyl-3-[3-tert-butyl-4-hydroxy-5-(5-chloro-2H-benzotriazol-2-yl)phenyl]propionate, and 2-ethylhexyl-3-[3-tert-butyl-4-hydroxy-5-(5-chloro-2H-benzotriazol-2-yl)phenyl]propionate.

[0103] Examples of triazine compounds include 2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-n-octyloxyphenyl)-1,3,5-triazine, 2-[4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine-2-yl]-5-[3-(dodecyloxy)-2-hydroxypropoxy]phenol, and the reaction product of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine with (2-ethylhexyl)-glycidic acid ester. Examples of the compound include 2,4-bis[2-hydroxy-4-butoxyphenyl]-6-(2,4-dibutoxyphenyl)-1,3,5-triazine, 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-(hexyloxy)phenol, 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol, and 2,4,6-tris(2-hydroxy-4-hexyloxy-3-methylphenyl)-1,3,5-triazine.

[0104] Examples of benzophenone compounds include 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 4-dodecyloxy-2-hydroxybenzophenone, 2-hydroxy-4-octadecyloxybenzophenone, 2,2'dihydroxy-4,4'-dimethoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, and 2-hydroxy-4-methoxy-2'-carboxybenzophenone.

[0105] Examples of the salicylate ester compounds include phenyl salicylate, p-octylphenyl salicylate, and p-tert-butylphenyl salicylate.

[0106] The content of the ultraviolet absorber is preferably 5 to 70% by mass relative to 100% by mass of the total of the photopolymerization initiator and the ultraviolet absorber. When an appropriate amount is contained, the resolution after development is further improved.

[0107] The total content of the photopolymerization initiator and the ultraviolet absorber is preferably 1 to 20 mass % based on 100 mass % of the nonvolatile content of the visible light-blocking photosensitive composition. When an appropriate amount is contained, the adhesion between the substrate and the coating is further improved, and good resolution can be obtained.

[0108] <Antioxidants> The visible light-shielding photosensitive composition can contain an antioxidant. The antioxidant prevents the photopolymerization initiator or thermosetting compound from oxidizing and yellowing during the thermal process during post-baking or ITO annealing, and therefore can improve the transmittance of the coating film. In particular, when the colorant concentration of the coloring composition is high, the amount of the coating film crosslinking component is reduced, and therefore measures such as using a highly sensitive crosslinking component or increasing the amount of the photopolymerization initiator are taken, resulting in a phenomenon in which yellowing during the thermal process becomes more severe. Therefore, by including an antioxidant, yellowing due to oxidation during the heating process can be prevented, and a high transmittance of the coating film can be obtained.

[0109] Examples of the antioxidant include hindered phenol-based, hindered amine-based, phosphorus-based, sulfur-based, and hydroxylamine-based compounds. In this specification, the antioxidant is preferably a compound that does not contain a halogen atom.

[0110] Among these, from the viewpoint of achieving both the transmittance and the sensitivity of the coating film, hindered phenol-based antioxidants, hindered amine-based antioxidants, phosphorus-based antioxidants, and sulfur-based antioxidants are preferred.

[0111] The antioxidants can be used alone or in combination of two or more kinds.

[0112] The content of the antioxidant is more preferably from 0.5 to 5.0% by mass based on 100% by mass of the nonvolatile content of the visible light-blocking photosensitive composition, since this leads to good transmittance, spectral characteristics, and sensitivity.

[0113] <Leveling agent> The visible light-shielding photosensitive composition of the present invention can contain a leveling agent. This improves the coating properties of the composition and the drying properties of the coating. As the leveling agent, various surfactants such as silicone surfactants, fluorine surfactants, nonionic surfactants, cationic surfactants, and anionic surfactants can be used.

[0114] The content of the leveling agent is preferably 0.001 to 2.0 mass %, more preferably 0.005 to 1.0 mass %, of the non-volatile content of the visible light-shielding photosensitive composition. When the content is within this range, the balance between the coatability, pattern adhesion, and transmittance of the visible light-shielding photosensitive composition is improved.

[0115] The leveling agents can be used alone or in combination of two or more kinds.

[0116] <Storage stabilizer> The visible light-shielding photosensitive composition of the present invention can contain a storage stabilizer to stabilize the viscosity of the composition over time. Examples of the storage stabilizer include quaternary ammonium chlorides such as benzyl trimethyl chloride and diethylhydroxyamine, organic acids such as lactic acid and oxalic acid and their methyl ethers, organic phosphines such as t-butylpyrocatechol, tetraethylphosphine and tetraphenylphosphine, and phosphites. The content of the storage stabilizer is preferably 0.1 to 10 parts by mass relative to 100 parts by mass of the colorant.

[0117] <Adhesion improver> The visible light-blocking photosensitive composition of the present invention may contain an adhesion improver such as a silane coupling agent in order to improve adhesion to a substrate.

[0118] Examples of the adhesion improver include vinyl silanes such as vinyl trimethoxy silane and vinyl triethoxy silane, (meth)acrylic silanes such as 3-methacryloxypropyl methyl dimethoxy silane, 3-methacryloxypropyl trimethoxy silane, 3-methacryloxypropyl methyl diethoxy silane, 3-methacryloxypropyl triethoxy silane and 3-acryloxypropyl trimethoxy silane, epoxy silanes such as 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane, 3-glycidoxypropyl methyl dimethoxy silane, 3-glycidoxypropyl trimethoxy silane, 3-glycidoxypropyl methyl diethoxy silane and 3-glycidoxypropyl triethoxy silane, N-2-(aminoethyl)-3-aminopropyl methyl dimethoxy silane and N-2-(aminoethyl)-3 Examples of the silane coupling agent include aminosilanes such as 3-aminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-triethoxysilyl-N-(1,3-dimethyl-butylidene)propylamine, N-phenyl-3-aminopropyltrimethoxysilane, and hydrochloride salt of N-(vinylbenzyl)-2-aminoethyl-3-aminopropyltrimethoxysilane, mercaptos such as 3-mercaptopropylmethyldimethoxysilane and 3-mercaptopropyltrimethoxysilane, styryls such as p-styryltrimethoxysilane, ureidos such as 3-ureidopropyltriethoxysilane, sulfides such as bis(triethoxysilylpropyl)tetrasulfide, and isocyanates such as 3-isocyanatepropyltriethoxysilane. The content of the adhesion improver is preferably 0.01 to 10 parts by mass, more preferably 0.05 to 5 parts by mass, relative to 100 parts by mass of the colorant. This range is more preferable since the effect is greater and the adhesion is good within the range.

[0119] <Method of producing visible light-blocking photosensitive composition> The visible light shielding photosensitive composition of the present invention is prepared by dispersing the colorant (A) and an organic solvent, etc. to prepare a pigment dispersion. When a dye derivative is used in the dispersion, the organic pigment can be dispersed more finely. Also, when the colorant (A) has high solubility in the solvent, the dispersion may not be necessary. A pigment dispersion can be prepared for each colorant (A) and then mixed. Also, a pigment dispersion can be prepared in a lump using a plurality of colorants (A). Next, a polymerizable compound (C), a photopolymerization initiator (D), etc. are mixed with the pigment dispersion and mixed to obtain a visible light shielding coloring composition. It goes without saying that the timing of mixing each material is arbitrary.

[0120] When dispersing the colorant (A), a dispersing aid (e.g., a surfactant) can be used as appropriate. The dispersing aid has excellent dispersibility of the colorant and is highly effective in preventing the colorant from re-aggregating after dispersion, so that a high spectral transmittance in the infrared region can be obtained.

[0121] <Dispersion aid> (Surfactant) Examples of the surfactant include anionic surfactants such as sodium lauryl sulfate, polyoxyethylene alkyl ether sulfate, sodium dodecylbenzene sulfonate, alkali salts of styrene-acrylic acid copolymers, sodium stearate, sodium alkyl naphthalene sulfonate, sodium alkyl diphenyl ether disulfonate, monoethanolamine lauryl sulfate, triethanolamine lauryl sulfate, ammonium lauryl sulfate, monoethanolamine stearate, monoethanolamine of styrene-acrylic acid copolymers, and polyoxyethylene alkyl ether phosphate esters; nonionic surfactants such as polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene nonylphenyl ether, polyoxyethylene alkyl ether phosphate esters, polyoxyethylene sorbitan monostearate, and polyethylene glycol monolaurate; cationic surfactants such as alkyl quaternary ammonium salts and their ethylene oxide adducts; alkyl betaines such as alkyl dimethylaminoacetate betaine, and amphoteric surfactants such as alkyl imidazolines. These can be used alone or in a mixture of two or more, but are not necessarily limited to these.

[0122] The dispersing aids can be used alone or in combination of two or more kinds.

[0123] The amount of the dispersion aid used is preferably 0.1 to 55 parts by mass, and more preferably 0.1 to 45 parts by mass, based on 100 parts by mass of the colorant. When an appropriate amount is used, the dispersibility is further improved.

[0124] <Removal of large particles> It is preferable to remove coarse particles of 5 μm or more, preferably 1 μm or more, more preferably 0.5 μm or more, and mixed dust from the visible light-shielding photosensitive composition of the present invention by means of centrifugation, filtration with a sintered filter or membrane filter, etc. In this way, it is preferable that the visible light-shielding photosensitive composition does not substantially contain particles of 0.5 μm or more, and more preferably 0.3 μm or less.

[0125] <Visible light shielding film and sensor> The visible light-shielding film of the present invention is a film that blocks visible light, and is a film that is formed by applying a light-shielding photosensitive composition to various types of additives. They can be made by coating them on a quartz or glass substrate, or by kneading them into a plastic material and molding them. As long as a film that blocks visible light is formed, it can be made in a variety of ways. By combining films made by these methods with photodiodes, they can be used as various sensors such as illuminance sensors, distance sensors, medical sensors, touch sensors for displays, and biometric sensors. EXAMPLES

[0126] The present invention will be described below based on examples, but the present invention is not limited thereto. Unless otherwise specified, "parts" means "parts by mass" and "%" means "% by mass".

[0127] (Average primary particle size of pigment) The average primary particle size of the pigment was measured by using a transmission electron microscope (TEM) to directly measure the size of the primary particles from electron microscope photographs. Specifically, the minor axis and major axis diameters of each pigment primary particle were measured, and the average was taken as the particle size of the pigment primary particles. Next, for 100 or more pigment particles, the volume (mass) of each particle was calculated by approximating it to a cube of the calculated particle size, and the volume average particle size was taken as the average primary particle size.

[0128] (Number average molecular weight (Mn) and weight average molecular weight (Mw) of acidic resin-type dispersant and binder resin) The number average molecular weight (Mn) and weight average molecular weight (Mw) of the acidic resin-type dispersant and binder resin were measured by gel permeation chromatography (GPC) equipped with an RI detector. The instrument used was an HLC-8220GPC (manufactured by Tosoh Corporation), with two separation columns connected in series, and both packings were "TSK-GEL SUPER HZM-N" connected in series. The oven temperature was 40°C, THF solution was used as the eluent, and the flow rate was 0.35 ml / min. The sample was dissolved in a solvent consisting of 1 wt% of the above eluent, and 20 microliters were injected. All molecular weights are polystyrene equivalent values.

[0129] (Number average molecular weight (Mn) and weight average molecular weight (Mw) of basic resin-type dispersant) The number average molecular weight (Mn) and weight average molecular weight (Mw) of the basic resin-type dispersant were measured by gel permeation chromatography (GPC) equipped with an RI detector. The equipment used was an HLC-8320GPC (manufactured by Tosoh Corporation), with two separation columns connected in series, both packed with "TSKgel SUPER-AW3000", and the oven temperature was 40°C, with an N,N-dimethylformamide solution of 3 mM triethylamine and 10 mM LiBr as the eluent, and the measurement was performed at a flow rate of 0.6 ml / min. The sample was dissolved in a solvent consisting of 1 wt% of the above eluent, and 10 microliters was injected. All molecular weights are polystyrene equivalent values.

[0130] (Acid value of acidic resin dispersant and binder resin) The acid value of the acidic resin-type dispersant and the binder resin is a value obtained by converting the measured acid value (mgKOH / g) into the non-volatile content in accordance with the potentiometric titration method of JIS K 0070.

[0131] (Amine value of basic resin type dispersant) The amine value of the basic resin-type dispersant is the total amine value (mgKOH / g) measured in accordance with the method of ASTM D 2074 and converted into solid content.

[0132] (Glass transition temperature of resin-type dispersant) The glass transition temperature of the side chain portion was calculated using the following formula. 1 / Tg=W1 / Tg1+W2 / Tg2+···+W n / Tg n (However, from W1 to W n indicates the mass fraction of the n monomers used, and Tg1 to Tg n teeth indicates the glass transition temperature (unit: absolute temperature "K") of a homopolymer (a single polymer of a monomer).

[0133] <Production of fine pigments> (Blue organic pigment (A-1)) 100 parts of blue organic pigment CI Pigment Blue 15:6 (PB15:6) ("Lionol Blue ES" manufactured by Toyo Color Co., Ltd.), 800 parts of ground salt, and 100 parts of diethylene glycol were charged into a stainless steel 1-gallon kneader (manufactured by Inoue Seisakusho Co., Ltd.) and kneaded at 70°C for 12 hours. This mixture was added to 3000 parts of warm water, heated to about 70°C and stirred with a high-speed mixer for about 1 hour to form a slurry, filtered and washed repeatedly with water to remove salt and solvent, and then dried at 80°C for 24 hours to obtain a finely divided blue organic pigment (A-1). The average primary particle diameter of the resulting pigment was 28.3 nm.

[0134] (Blue organic pigment (A-2)) A similar process to that for the blue organic pigment (A-1) was carried out, except that CI Pigment Blue 15:6 ("Leonor Blue ES" manufactured by Toyo Color Co., Ltd.) was used instead of CI Pigment Blue 15:3 (PB15:3) ("Leonor Blue FG-7351" manufactured by Toyo Color Co., Ltd.), to obtain a finely divided blue organic pigment (A-2). The average primary particle diameter of the obtained pigment was 30.9 nm.

[0135] (Blue organic pigment (A-3)) A similar process to that for the blue organic pigment (A-1) was carried out, except that CI Pigment Blue 15:6 ("Leonor Blue ES" manufactured by Toyo Color Co., Ltd.) was used instead of CI Pigment Blue 15:4 (PB15:4) ("Leonor Blue FG-7400G" manufactured by Toyo Color Co., Ltd.), to obtain a finely divided blue organic pigment (A-3). The average primary particle diameter of the obtained pigment was 32.1 nm.

[0136] (Yellow organic pigment (A-4)) 100 parts of yellow organic pigment CI Pigment Yellow 139 (PY139) (Clariant's "Novoperm Yellow P-M3R"), 800 parts of ground salt, and 100 parts of diethylene glycol were charged into a stainless steel 1-gallon kneader (Inoue Seisakusho Co., Ltd.) and kneaded at 70°C for 12 hours. This mixture was added to 3000 parts of warm water, heated to about 70°C and stirred with a high-speed mixer for about 1 hour to form a slurry, filtered and washed repeatedly to remove salt and solvent, and then dried at 80°C for 24 hours to obtain a finely divided yellow organic pigment (A-4). The average primary particle diameter of the resulting pigment was 41.1 nm.

[0137] (Purple organic pigment (A-5)) 100 parts of the purple organic pigment CI Pigment Violet 23 (PV23) ("LIONOGEN VIOLET FG-6140" manufactured by Toyo Color Co., Ltd.), 800 parts of ground salt, and 100 parts of diethylene glycol were charged into a stainless steel 1-gallon kneader (manufactured by Inoue Seisakusho Co., Ltd.) and kneaded at 70°C for 12 hours. This mixture was added to 3000 parts of warm water, heated to about 70°C and stirred with a high-speed mixer for about 1 hour to form a slurry, filtered and washed repeatedly to remove salt and solvent, and then dried at 80°C for 24 hours to obtain a finely divided purple organic pigment (A-5). The average primary particle size of the resulting pigment was 53.7 nm.

[0138] (Other organic pigments (A-6)) 95 parts of CI Pigment Yellow 185 (PY185) (BASF Japan "Paliogen Yellow D1155"), 5 parts of dye derivative (b-1), 10 parts of rosin maleic acid resin (Arakawa Chemical Industries "Marquid 32"), 1200 parts of sodium chloride, and 120 parts of ethylene glycol were charged into a stainless steel 1 gallon kneader (manufactured by Inoue Seisakusho Co., Ltd.) and kneaded for 8 hours at 60°C. Next, this kneaded material was charged into 8000 parts of hot water, and stirred for 1 hour while heating to about 70°C to form a slurry. After repeatedly filtering and washing with water to remove sodium chloride and diethylene glycol, the mixture was dried at 80°C for 24 hours to obtain a finely divided organic pigment (A-6). The average primary particle diameter of the obtained pigment was 40.7 nm.

[0139] (Other organic pigments (A-7)) 100 parts of CI Pigment Red 177 (PR177) (BASF Japan "Cromophthal Red A2B" (anthraquinone-based red pigment)), 1200 parts of sodium chloride, and 120 parts of diethylene glycol were charged into a stainless steel 1-gallon kneader (Inoue Seisakusho Co., Ltd.), kneaded at 60°C for 6 hours, and salt milled. The kneaded product obtained was added to 3 liters of warm water, heated to 70°C and stirred for 1 hour to form a slurry, filtered and washed repeatedly to remove sodium chloride and diethylene glycol, and then dried at 80°C for a day and night to obtain a finely divided organic pigment (A-7). The average primary particle diameter of the obtained pigment was 38.6 nm.

[0140] <Production of dye derivatives> (dye derivative (f-1)) The dye derivative having the structure shown below was prepared with reference to the literature mentioned in the description of the dye derivative above. [ka]

[0141] <Preparation of Acidic Resin-Type Dispersant (B1) Solution> (Acidic resin type dispersant (B1-1-1) solution) In a reaction vessel equipped with a gas inlet tube, a thermometer, a condenser, and a stirrer, 62.6 parts of 1-dodecane, 287.4 parts of ε-caprolactone, and 0.1 parts of monobutyltin (IV) oxide as a catalyst were charged, and the mixture was replaced with nitrogen gas, and then heated and stirred at 120 ° C for 4 hours. After confirming that 98% had reacted by measuring the solid content, 73.3 parts of pyromellitic anhydride were added and reacted at 120 ° C for 2 hours. The reaction was terminated when it was confirmed by measuring the acid value that 98% or more of the acid anhydride had been half-esterified. The obtained dispersant was a white solid at room temperature and had an acid value of 51 mg KOH / g. The solution was diluted with PGMAc so that the non-volatile content was 40% by measuring the non-volatile content, and a dispersant (B1-1-1) solution with an acid value of 51 mg KOH / g was obtained. Table 1-1 shows the glass transition temperature of the polymer portion.

[0142] (Acidic resin type dispersant (B1-1-2) solution) A reaction vessel equipped with a gas inlet tube, a thermometer, a condenser, and a stirrer was charged with 6 parts of methacrylic acid, 6 parts of methyl methacrylate, 100 parts of 2-methoxyethyl methacrylate, 40 parts of ethyl acrylate, 38 parts of n-butyl acrylate, and 10 parts of tert-butyl acrylate, and the atmosphere was replaced with nitrogen gas. The inside of the reaction vessel was heated to 50°C and stirred, and 12 parts of 3-mercapto-1,2-propanediol was added. The temperature was raised to 90°C, and a solution of 0.1 parts of 2,2'-azobisisobutyronitrile in 90 parts of propylene glycol monomethyl ether acetate was added and reacted for 7 hours. A solid content measurement confirmed that 95% had reacted. 14 parts of pyromellitic anhydride, 299 parts of propylene glycol monomethyl ether acetate, and 0.4 parts of 1,8-diazabicyclo-[5.4.0]-7-undecene as a catalyst were added, and the mixture was reacted at 100°C for 7 hours. The reaction was terminated after confirming that 98% or more of the acid anhydride had been half-esterified by measuring the acid value, and the mixture was diluted with propylene glycol monomethyl ether acetate so that the non-volatile content was 40% by measuring the non-volatile content, to obtain an acidic resin-type dispersant (B1-1-2) solution with an acid value of 53 mgKOH / g and a weight average molecular weight of 8470. Table 1-2 shows the glass transition temperature of the polymer portion.

[0143] (Acidic resin-type dispersants (B1-2-1) to (B1-2-3), (BC-1) to (BC-2) solutions) Except for changing the composition as shown in Table 1-2, acidic resin-type dispersant solutions (B1-2-1) to (B1-2-3) and (BC-1) to (BC-2) were prepared in the same manner as (B1-1-2).

[0144] [Table 1-1] [Table 1-2]

[0145] <Production of Basic Resin-Type Dispersant Solution> (Basic resin type dispersant (BC-3) solution) In a reaction apparatus equipped with a gas inlet tube, a condenser, a stirring blade, and a thermometer, 40 parts of methyl methacrylate, 10 parts of n-butyl methacrylate, and 13.2 parts of tetramethylethylenediamine as a catalyst were charged, and the mixture was stirred at 50°C for 1 hour while flowing nitrogen, and the inside of the system was replaced with nitrogen. Next, 9.3 parts of ethyl bromoisobutyrate as an initiator and 5.6 parts of cuprous chloride as a catalyst were added. 133 parts of propylene glycol monomethyl ether acetate and 133 parts of propylene glycol monomethyl ether acetate were charged, and the temperature was raised to 110°C under a nitrogen stream to initiate polymerization of the first block (B block). After 4 hours of polymerization, the polymerization solution was sampled and the nonvolatile content was measured, and it was confirmed that the polymerization conversion rate was 98% or more calculated from the nonvolatile content. Next, 61 parts of propylene glycol monomethyl ether acetate, 40 parts of dimethylaminoethyl methacrylate as a second block (A block) monomer, and 10 parts of methacryloyloxyethylbenzyldimethylammonium chloride were charged into the reactor, and the reaction was continued by stirring while maintaining the temperature at 110°C and a nitrogen atmosphere. Two hours after the charging, the polymerization solution was sampled and the nonvolatile content was measured, and it was confirmed that the polymerization conversion rate of the second block (A block) was 98% or more calculated from the nonvolatile content, and the reaction solution was cooled to room temperature to terminate the polymerization. As a result of GPC measurement, the weight average molecular weight of the polymer was 20000, the molecular weight distribution Mw / Mn was 1.4, and the reaction conversion rate was 98.5%. In this way, a basic resin type dispersant (BC-3) with an amine value per non-volatile content of 169.8 mg KOH / g was obtained. After cooling to room temperature, about 2 g of the resin type dispersant solution was sampled and dried by heating at 180 ° C for 20 minutes to measure the non-volatile content, and propylene glycol monomethyl ether acetate was added to the previously synthesized basic resin type dispersant (BC-3) so that the non-volatile content was 40% in the non-volatile content measurement to prepare a basic resin type dispersant (BC-3) solution.

[0146] <Production example of binder resin (E)>

[0147] (Preparation of binder resin (E-1) liquid) A separable 4-neck flask equipped with a thermometer, a cooling tube, a nitrogen gas inlet tube, a dropping tube and a stirrer was charged with 370 parts of cyclohexanone, heated to 80°C, and the atmosphere in the flask was replaced with nitrogen, and then a mixture of 18 parts of dicyclopentanyl methacrylate, 10 parts of benzyl methacrylate, 18.2 parts of glycidyl methacrylate, 25 parts of methyl methacrylate and 2.0 parts of 2,2'-azobisisobutyronitrile was added dropwise over 2 hours from the dropping tube. After the dropwise addition, the mixture was reacted at 100°C for another 3 hours, and then a solution of 1.0 part of azobisisobutyronitrile in 50 parts of cyclohexanone was added, and the reaction was continued at 100°C for another 1 hour. Next, the inside of the vessel was replaced with air, and 9.3 parts of acrylic acid (100% of glycidyl groups) was added to the vessel along with 0.5 parts of trisdimethylaminophenol and 0.1 parts of hydroquinone, and the reaction was continued for 6 hours at 120°C, and the reaction was terminated when the solid acid value reached 0.5, to obtain an acrylic resin solution. Furthermore, 19.5 parts of tetrahydrophthalic anhydride (100% of the generated hydroxyl groups) and 0.5 parts of triethylamine were added, and the reaction was continued for 3.5 hours at 120°C, to obtain an acrylic resin solution. After cooling to room temperature, about 2 g of the resin solution was sampled and dried at 180°C for 20 minutes to measure the non-volatile content, and propylene glycol monomethyl ether acetate was added to the previously synthesized resin solution so that the non-volatile content was 20 mass% to prepare a binder resin (E-1) liquid. The weight average molecular weight (Mw) was 10,000.

[0148] (Preparation of binder resin (E-2) liquid) 160 parts of propylene glycol monomethyl ether acetate was introduced into a separable 4-neck flask equipped with a thermometer, a cooling tube, a nitrogen gas inlet tube, a dropping tube and a stirrer. The atmosphere in the flask was changed from air to nitrogen, and then the temperature was raised to 100°C. A solution of 2.0 parts of azobisisobutyronitrile added to a mixture of 96.0 parts of benzyl methacrylate, 17.6 parts of methacrylic acid, 22.0 parts of dicyclopentanyl methacrylate and 140 parts of propylene glycol monomethyl ether acetate was dropped into the flask from the dropping funnel over 2 hours, and the mixture was stirred at 100°C for 5 hours to obtain a solution of an acrylic resin with an acid value of 85 mgKOH / g and a weight average molecular weight (Mw) of 15,000. After cooling to room temperature, approximately 2 g of the resin solution was sampled and dried by heating at 180°C for 20 minutes to measure the non-volatile content. Propylene glycol monomethyl ether acetate was added to the previously synthesized resin solution so that the non-volatile content was 20 mass %, to prepare a binder resin (E-2) liquid.

[0149] <Preparation of colorant liquid> (Production Example 1) The following materials were mixed and stirred until uniform, and then dispersed in an Eiger mill (Eiger Japan, "Mini Model M-250 MKII") using zirconia beads with a diameter of 0.5 mm for 3 hours. The mixture was then filtered through a filter with a pore size of 5.0 μm to prepare a colorant liquid (PP-1). Pigment (A-1): 3.7 parts Pigment (A-4): 3.7 parts Pigment (A-5): 3.2 parts Pigment derivative (f-1): 1.5 parts Acidic resin type dispersant ((B1-1-1): 40% non-volatile liquid): 1.3 parts Acidic resin type dispersant ((B1-2-2): 40% non-volatile liquid): 18.7 parts Propylene glycol monomethyl ether acetate (PGMAc): 68.0 parts

[0150] (Production Examples 2 to 21: Colorant Liquid (PP-2 to 21)) Colorant liquids (PP-2 to 21) were prepared in the same manner as in Production Example 1 (PP-1), except that the combinations were changed as shown in Table 2.

[0151] [Table 2]

[0152] [Synthesis of photopolymerization initiators D1-1 and D1-3] The above photopolymerization initiators D1-1 and D1-3 were synthesized by the following method.

[0153] <Synthesis of photopolymerization initiator (D1-1)> (Step 1) In a nitrogen stream, 12.60 g (95 mmol) of aluminum chloride, 126 g of 1,2-dichloroethane, and 53 mmol of N-ethyl-3-nitro-carbazole were added to an ice-cooled reaction vessel. While maintaining the reaction temperature at 5°C or less, 64 mmol of 4-(2-methoxy-1-methyl-ethoxy)-2-methyl-benzoyl chloride was gradually added dropwise to the mixture. After the addition was completed, the mixture was stirred at 20°C for 4 hours. The reaction solution was then poured into ice water to separate it into an oily phase and an aqueous phase, and the liquid constituting the oily phase was dried using magnesium sulfate. Next, the desiccant was removed from the liquid by filtration, and the solvent was further removed by distillation. In this manner, an acylated product was obtained.

[0154] (Step 2) In a nitrogen stream, 20 mmol of the above acyl compound, 2.1 g (30 mmol) of hydroxylamine hydrochloride, and 16.9 g of dimethylformamide were charged into a reaction vessel. The mixture was stirred at 80° C. for 1 hour, then cooled to room temperature to separate into an oily phase and an aqueous phase. The solvent was removed from the liquid constituting the oily phase by distillation, and then 25.4 g of butyl acetate and 2.45 g (24 mmol) of acetic anhydride were added to the distillation residue. The mixture was stirred at 90° C. for 1 hour, then cooled to room temperature, and neutralized with a 5% aqueous sodium hydroxide solution. Next, the mixture was subjected to oil-water separation, the solvent was removed from the liquid constituting the oily phase by distillation, and further recrystallization was performed using ethyl acetate as a solvent. In this manner, a photopolymerization initiator (D1-1) was obtained.

[0155] <Synthesis of photopolymerization initiator (D1-3)> (Step 1) In a nitrogen stream, 12.60 g (95 mmol) of aluminum chloride, 126 g of 1,2-dichloroethane, and 53 mmol of N-ethyl-3-nitrocarbazole compound were added to an ice-cooled reaction vessel. While maintaining the reaction temperature at 5°C or less, 64 mmol of 4-(ethoxymethyl)-2-methyl-benzoyl chloride was gradually added dropwise to this mixture. After the dropwise addition was completed, the mixture was stirred at 20°C for 4 hours. Thereafter, the reaction solution was poured into ice water to separate it into an oily phase and an aqueous phase, and the liquid constituting the oily phase was dried using magnesium sulfate. The desiccant was removed from this liquid by filtration, and the solvent was further removed by distillation. In this manner, an acylated body was obtained.

[0156] (Step 2) In a nitrogen stream, 20 mmol of the above acyl compound, 2.1 g (30 mmol) of hydroxylamine hydrochloride, and 16.9 g of dimethylformamide were charged into a reaction vessel. The mixture was stirred at 80° C. for 1 hour, then cooled to room temperature to separate into an oily phase and an aqueous phase. The solvent was removed from the liquid constituting the oily phase by distillation, and then 25.4 g of butyl acetate and 2.45 g (24 mmol) of acetic anhydride were added to the distillation residue. The mixture was stirred at 90° C. for 1 hour, then cooled to room temperature, and neutralized with a 5% aqueous sodium hydroxide solution. Next, the mixture was subjected to oil-water separation, the solvent was removed from the liquid constituting the oily phase by distillation, and further recrystallization was performed using ethyl acetate as a solvent. In this manner, a photopolymerization initiator (D1-3) was obtained.

[0157] <Method of producing visible light-blocking photosensitive composition> [Example 1] (Preparation of Visible Light-Shielding Photosensitive Composition (R-1)) The following raw materials were mixed and stirred, and filtered through a filter having a pore size of 1.0 μm to obtain a visible light-blocking photosensitive composition (R-1). Colorant liquid (PP-1: non-volatile content 20%): 67.5 parts Binder resin liquid (E-1: non-volatile content 20%): 6.6 parts Polymerizable compound (C-1): 2.7 parts Dipentaerythritol penta- and hexaacrylate ("Aronix M402" manufactured by Toagosei Co., Ltd.) Photopolymerization initiator (D1-1): 0.5 parts Propylene glycol monomethyl ether acetate (PGMAc): 22.7 parts

[0158] [Examples 2 to 19, Comparative Examples 1 to 4] (Preparation of Light-Shielding Photosensitive Compositions (R-2 to R-23)) The types and parts by mass of the colorant solution, binder resin solution, polymerizable compound, and photopolymerization initiator of Example 1 are The same procedure as in Example 1 was carried out except for the changes shown in Table 3 to produce a visible light-blocking photosensitive composition ( R-2 to R-23) were prepared, respectively. However, Examples 2 and 8 are reference examples.

[0159] [Table 3]

[0160] The details of each raw material are as follows:

[0161] <Photopolymerization initiator (D)> (D-3) Ethan-1-one, 1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl], 1-(O-acetyloxime) [Irgacure OXE02 (Manufactured by BASF Japan)]

[0162] [Example 20] (Preparation of visible light-blocking photosensitive composition (R-24)) The following raw materials were mixed and stirred, and filtered through a filter having a pore size of 1.0 μm to obtain a visible light-blocking photosensitive composition (R-24). Colorant liquid (PP-1: non-volatile content 20%): 67.5 parts Binder resin liquid (E-1: non-volatile content 20%): 2.6 parts Binder resin liquid (E-2: non-volatile content 20%): 4.0 parts Polymerizable compound (C-1): 2.7 parts Dipentaerythritol penta- and hexaacrylate ("Aronix M402" manufactured by Toagosei Co., Ltd.) Photopolymerization initiator (D1-1): 0.5 parts Propylene glycol monomethyl ether acetate (PGMAc): 22.7 parts

[0163] [Example 21] (Preparation of visible light-blocking photosensitive composition (R-25)) The following raw materials were mixed and stirred, and filtered through a filter having a pore size of 1.0 μm to obtain a visible light-blocking photosensitive composition (R-25). Colorant liquid (PP-1: non-volatile content 20%): 67.5 parts Binder resin liquid (E-1: non-volatile content 20%): 2.5 parts Binder resin liquid (E-2: non-volatile content 20%): 4.0 parts Polymerizable compound (C-1): 2.7 parts Dipentaerythritol penta- and hexaacrylate ("Aronix M402" manufactured by Toagosei Co., Ltd.) Photopolymerization initiator (D1-1): 0.5 parts Methylhydroquinone 1% solution: 0.5 parts (A solution of Seiko Chemical's "MH" adjusted with PGMAc to a non-volatile content of 1% by mass) Propylene glycol monomethyl ether acetate (PGMAc): 22.3 parts

[0164] <Evaluation of Visible Light-Shielding Photosensitive Composition> The obtained visible light-shielding photosensitive compositions were evaluated for storage stability (viscosity), adhesion, coating uniformity, resolution, and light-shielding properties as follows: ⊚ indicates a very good level, ◯ indicates a good level, △ indicates a practically acceptable level, and × indicates a level not suitable for practical use.

[0165] (Evaluation of storage stability (viscosity evaluation)) The viscosity of the obtained visible light-blocking photosensitive composition was measured using an E-type viscometer immediately after preparation and after storage for one month at 10° C. The ratio of (viscosity after storage for one month) / (viscosity immediately after preparation) was calculated and evaluated according to the following criteria. ◎: Viscosity ratio is 1.00 or more and less than 1.02 Good: Viscosity ratio is 1.02 or more and less than 1.05 △: Viscosity ratio is 1.05 or more and less than 1.10 ×: Viscosity ratio is 1.10 or more

[0166] (Evaluation of Adhesion) (Adhesion to substrate) The obtained visible light-shielding photosensitive composition was applied onto a 10 cm x 10 cm square glass substrate using a spin coater, and then prebaked at 90°C for 120 seconds to form a coating film with a thickness of 2.0 µm. Then, a high-pressure mercury lamp was used to apply 100 mJ / cm 2The substrate was then spray-developed using a 0.04% by mass aqueous solution of potassium hydroxide at 23°C, washed with ion-exchanged water, air-dried, and heated in a clean oven at 230°C for 30 minutes to prepare a sample substrate. A 100-cross-cut test was carried out on the coating film on the glass substrate, and the peeling state was observed using cellophane tape. The number of adhesions (the number of cross-cuts that were not peeled off) out of the 100 was counted and used as an evaluation of the adhesion to the substrate. 〇: 90 or more △:80~89 ×:79 or less

[0167] (Evaluation of fine line adhesion after development) The obtained visible light-shielding photosensitive composition was applied onto a 10 cm x 10 cm square glass substrate using a spin coater, and then prebaked at 90°C for 120 seconds to form a coating film with a thickness of 2.0 μm. Next, using an ultra-high pressure mercury lamp, the coating film was exposed to light at an illumination intensity of 30 mW / cm through a photomask with a stripe pattern of 6 to 25 μm. 2 , 100mJ / cm 2 The substrate was then spray-developed using a 0.04% by mass aqueous solution of potassium hydroxide at 23° C., washed with ion-exchanged water, and air-dried. The resulting pattern was observed under an optical microscope to confirm the minimum line width of the remaining fine line pattern. ◎: Fine lines of 10 μm or less remain. ◯: Fine lines of 15 μm or less remain. △: Fine lines of 20 μm or less remain. ×: Fine lines thicker than 20 μm remain, or fine lines do not remain.

[0168] (Evaluation of coating uniformity) The obtained visible light-blocking photosensitive composition was spin-coated onto a 360 mm × 465 mm substrate with a plate thickness of 0.7 mm so that the film thickness at the center (referred to as A) was 2.0 μm, and after drying at 70°C for 30 minutes, the film thickness at the center and the average film thickness at four points diagonally 200 mm from the center (referred to as B) were measured, and the coating uniformity of the film thickness was evaluated using the following formula. (A+B) x 100 / {(A+B) / 2} [%] ◎: Less than 1% ○: 1% or more but less than 2% △: 2% or more but less than 5% ×: 5% or more

[0169] (Resolution evaluation) The obtained visible light-shielding photosensitive composition was spin coated onto a 10 cm x 10 cm square glass substrate. After coating using a photocoater, the coating was prebaked at 90°C for 120 seconds to form a coating film with a thickness of 2.0 μm. Next, a super-high pressure mercury lamp was used to apply 100 mJ / cm2 through a 30 μm regular hexagonal photomask. 2 After that, the substrate was exposed to a 0.04% by weight After spray development using an aqueous potassium hydroxide solution, the substrate was washed with ion-exchanged water, air-dried, and heated in a clean oven at 230° C. for 30 minutes. The spray development was carried out for the shortest time possible for forming a pattern with no residual development in the coating of the light-blocking photosensitive composition, and this was defined as the appropriate development time. The cross section of the pattern in the 30 μm regular hexagonal portion of the obtained filter segment was observed using an electron microscope and evaluated. The evaluation criteria were as follows: ◎: Pattern edges are smooth and there is no development residue. Hole dimensions are 28 μm or more. ◯: Pattern edges are smooth and there is no development residue. Hole dimensions are less than 28 μm. △: The pattern edges are jagged or have development residue. ×: Both jagged edges and development residues are present at the pattern edges. (Evaluation of light blocking properties) The obtained visible light-blocking photosensitive composition was applied onto a 100 mm x 100 mm, 1.1 mm thick glass substrate using a spin coater, and baked in an oven at 230°C for 30 minutes to prepare a coated substrate such that the coating film had a thickness of 2.0 μm after heat treatment. The maximum transmittance of the prepared substrate in the 400 to 700 nm region was measured to evaluate the light blocking ability in the visible region. ◎: Maximum transmittance is less than 3.0% 〇: Maximum transmittance is 3.0% or more and less than 5.0% △: Maximum transmittance is 5.0% or more and less than 7.0% ×: Maximum transmittance is 7.0% or more

[0170] The results of the evaluation using the above methods are shown in Table 4.

[0171] [Table 4]

[0172] As shown in the results in Table 4, the visible light-blocking photosensitive compositions of Examples 1 to 21 were excellent in storage stability, adhesion, coating uniformity, and resolution, and could form coating films with good light-blocking properties.

Claims

1. A visible light-blocking photosensitive composition comprising a colorant (A), a binder resin, a resin-type dispersant (B), a polymerizable compound (C) and a photopolymerization initiator (D), In 100% by mass of the colorant (A), the colorant (A) contains 20 to 50% by mass of copper phthalocyanine blue pigment, 20 to 35% by mass of C.I. Pigment Yellow 139, and 15 to 45% by mass of C.I. Pigment Violet 23; A visible light-blocking photosensitive composition, wherein the resin-type dispersant (B) contains two or more acidic resin-type dispersants (B1) having an acid value of 30 to 80 mgKOH / g, and the acidic resin-type dispersant (B1) contains an acidic resin-type dispersant (B1-1) having a polymer moiety having a glass transition temperature of -30°C or lower in the molecule (however, excluding a visible light-blocking photosensitive composition containing 15% by mass or more of a red organic pigment relative to 100% by mass of the colorant (A).

2. The visible light-blocking photosensitive composition according to claim 1, wherein the content of the acidic resin-type dispersant (B1-1) is 2 to 10 mass % of the total solid content of the visible light-blocking photosensitive composition.

3. The binder resin according to claim 1 or 3. The visible light-blocking photosensitive composition according to claim 2.

4. 4. The visible light-shielding photosensitive composition according to claim 1, wherein the copper phthalocyanine blue pigment is at least one pigment selected from the group consisting of C. I. Pigment Blue 15:3, 15:4, and 15:

6.

5. 5. The visible light-blocking photosensitive composition according to claim 1, wherein the photopolymerization initiator (D) comprises a compound represented by the following general formula (1): General formula (1) 【Chemistry 1】 [In the general formula (1), X 1 , X 3 and X 6 Each independently represents R 11 , OR 11 , C.O.R. 11 , S.R. 11 , C.O.R. 12 R 13 or CN, X 2 represents an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted aryl group having 6 to 30 carbon atoms, an optionally substituted arylalkyl group having 7 to 30 carbon atoms, or an optionally substituted heterocyclic group having 2 to 20 carbon atoms; X 4 and X 5 Each independently represents R 11 , OR 11 , S.R. 11 , C.O.R. 11 , C.O.R. 12 R 13 , N.R. 12 C.O.R. 11 , O.C.O.R. 11 , COOR 11 , SCOR 11 , C.O.S.R. 11 , C.O.S.R. 11 , CSR 11 , CN, a halogen atom or a hydroxyl group. 11 , R 12 and R 13 each independently represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms which may have a substituent, an aryl group having 6 to 30 carbon atoms which may have a substituent, an arylalkyl group having 7 to 30 carbon atoms which may have a substituent, or a heterocyclic group having 2 to 20 carbon atoms which may have a substituent. a and b each independently represent an integer of 0 to 3.

6. A visible light-shielding film formed from the visible light-shielding photosensitive composition according to any one of claims 1 to 5.

7. A sensor comprising the visible light blocking film according to claim 6.

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