WO2013146183A1 - 感光性黒色樹脂組成物及び樹脂ブラックマトリックス基板 - Google Patents
感光性黒色樹脂組成物及び樹脂ブラックマトリックス基板 Download PDFInfo
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- WO2013146183A1 WO2013146183A1 PCT/JP2013/056437 JP2013056437W WO2013146183A1 WO 2013146183 A1 WO2013146183 A1 WO 2013146183A1 JP 2013056437 W JP2013056437 W JP 2013056437W WO 2013146183 A1 WO2013146183 A1 WO 2013146183A1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/075—Silicon-containing compounds
- G03F7/0757—Macromolecular compounds containing Si-O, Si-C or Si-N bonds
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/075—Silicon-containing compounds
- G03F7/0755—Non-macromolecular compounds containing Si-O, Si-C or Si-N bonds
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
Definitions
- the present invention relates to a photosensitive black resin composition and a resin black matrix substrate.
- the black matrix material Conventionally, a metal thin film using a chromium-based material has been used as the black matrix material, but in recent years, a resin black matrix made of a resin and a light shielding material has been used from the viewpoint of cost and environmental pollution.
- the resin black matrix is obtained by applying a black resin composition containing a resin and a light shielding material such as carbon black on a substrate and drying it to form a black film, which is finely patterned into a lattice pattern by a photolithography method. .
- a light-shielding film is formed as a frame on the periphery of touch panel substrates, but high development adhesion and high-definition pattern processing are required even when the volume ratio of the light-shielding material is increased as with color filters. Is done.
- the black matrix itself is light-shielding, photocuring due to exposure is less likely to occur near the interface with the substrate in the photosensitive resin black matrix. Therefore, the higher the light-shielding property of the resin black matrix, the worse the adhesiveness with the glass substrate during development, and the light-shielding property and development adhesiveness have a trade-off relationship.
- the black resin composition having a high optical density contains many inorganic particles as a pigment, there is a problem that the compatibility with the alkali developer is poor and a fine pattern is lost during development.
- tertiary amine compounds, trivalent phosphorus compounds, epoxy silanes, etc. are known as additives for increasing the sensitivity of the resin black matrix and causing the photopolymerization reaction to occur near the interface with the substrate. ing.
- Patent Documents 4 and 5 In a photosensitive resin composition containing a pigment, a cured film made of a copolymer resin containing an oxetanyl group as a structural unit is effective for physical adhesion to a substrate. There was knowledge that there was (Patent Document 6).
- Patent Documents 1 to 3 a film having a high optical density of a resin black matrix is observed at the substrate interface. Insufficient curing reaction may affect the adhesiveness during development, and the adhesiveness during development is easily affected by the underlying substrate, soda glass generally used in touch panel applications. Therefore, it was thought that it would be difficult to obtain a high-definition patterning substrate.
- the black resin composition having a high optical density of the resin black matrix and containing a lot of pigment particles is still insufficient in compatibility with the developer, and the fine pattern has been peeled off during development.
- the inventors have also paid attention to compatibility.
- the present invention was devised in view of the drawbacks of the prior art, and the object of the present invention is that when a resin black matrix is formed on a glass substrate, the adhesion to the substrate at the time of development is good, and the developer and
- a resin black matrix substrate using such a photosensitive black resin composition, as well as a color filter and a light-shielding film for touch panels are provided. There is to do.
- Patent Documents 4 and 5 an oxetane compound is described, and there was a knowledge that a cured film after post-baking is excellent in physical adhesion with a substrate and in resolution and sensitivity. There is no knowledge about the adhesiveness to the substrate, and the optical density of the resin black matrix is high and application to a black resin composition containing a large amount of pigment particles has not been described.
- Patent Document 6 in a photosensitive resin composition containing a pigment, a post-baked cured film made of a copolymer resin containing an oxetanyl group as a structural unit is effective for physical adhesion to a substrate.
- a post-baked cured film made of a copolymer resin containing an oxetanyl group as a structural unit is effective for physical adhesion to a substrate.
- the adhesion to the substrate during development and the developer is easily manifested in a black resin composition containing a large amount of pigment particles.
- compatibility There was no knowledge about the compatibility.
- the present inventors have found that the above problem can be solved by adding an appropriate amount of a specific oxetane compound.
- the object of the present invention is achieved by the following configurations.
- an oxetane compound having at least the structure of the following general formula (A) is included as an additive, A photosensitive black resin composition comprising 1.5 to 10.0% by weight based on the total of a light shielding material and an alkali-soluble resin.
- the photosensitive black resin composition according to (1) or (2), wherein the oxetane compound is represented by the following structural formula (B).
- a resin black matrix substrate obtained by applying the photosensitive black resin composition according to any one of (1) to (3) above onto a transparent substrate to form a pattern.
- the black resin composition of the present invention By using the black resin composition of the present invention, there is an effect that a resin black matrix substrate excellent in development adhesiveness and pattern processing accuracy can be obtained.
- the photosensitive black resin composition of the present invention needs to contain at least a light-shielding material, an alkali-soluble resin, a photopolymerization initiator, and a solvent.
- the photosensitive black resin composition of the present invention comprises printing ink, inkjet ink, photomask preparation material, printing proof preparation material, etching resist, solder resist, plasma display panel (PDP) partition, dielectric pattern, electrode ( Conductive circuit) patterns, wiring patterns of electronic components, conductive pastes, conductive films or black matrix (hereinafter referred to as “BM”) and the like can be used for the production of shading images.
- a light-shielded image (including BM) is provided on the interval portion of the coloring pattern, the peripheral portion, the outside light side of the TFT, and the like. It can be suitably used for a light shielding film used in the peripheral portion of the touch panel substrate.
- a liquid crystal display device a plasma display device, an EL display device equipped with an inorganic EL, a CRT display device, a black edge provided at the periphery of a display device equipped with a touch panel, red, blue, green It is suitably used as a BM such as a grid-like or stripe-like black portion between colored pixels, more preferably a dot-like or linear black pattern for TFT light shielding.
- a BM such as a grid-like or stripe-like black portion between colored pixels, more preferably a dot-like or linear black pattern for TFT light shielding.
- the light shielding material used in the present invention for example, carbon black, titanium black, chromium oxide, iron oxide, aniline black, perylene pigment or C.I. I.
- black pigments such as Solvent Black 123, carbon black coated with resin, inorganic black pigments such as composite oxides such as titanium, manganese, iron, copper or cobalt, or a combination of an organic pigment and a black pigment.
- carbon black or titanium nitride is preferable because it has high light shielding properties.
- alkali-soluble resin used in the present invention examples include an epoxy resin, an acrylic resin, a siloxane polymer resin, or a polyimide resin, and an acrylic resin or a polyimide that is excellent in the storage stability of the composition and the heat resistance of the coating film. Resins are preferred.
- an acrylic resin having a carboxyl group is preferably used.
- the acrylic resin having a carboxyl group a copolymer of an unsaturated carboxylic acid and an ethylenically unsaturated compound is preferable.
- the unsaturated carboxylic acid include acrylic acid, methacrylic acid, itaconic acid, crotonic acid, maleic acid, fumaric acid, and vinyl acetic acid. These may be used alone or in combination with other copolymerizable ethylenically unsaturated compounds.
- Examples of the copolymerizable ethylenically unsaturated compound include methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, n-propyl acrylate, isopropyl acrylate, n-propyl methacrylate, isopropyl methacrylate, N-butyl acrylate, n-butyl methacrylate, sec-butyl acrylate, sec-butyl methacrylate, iso-butyl acrylate, iso-butyl methacrylate, tert-butyl acrylate, tert-butyl methacrylate, acrylic acid Unsaturated carboxylic acid alkyl esters such as n-pentyl, n-pentyl methacrylate, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, benzyl acrylate or benzyl methacrylate, st
- an acrylic resin having an ethylenically unsaturated group in the side chain because the sensitivity during exposure and development is improved.
- an acryl group or a methacryl group is preferable.
- Such an acrylic resin can be obtained by adding an ethylenically unsaturated compound having a glycidyl group or an alicyclic epoxy group to a carboxyl group of an acrylic (co) polymer having a carboxyl group.
- acrylic resin having an ethylenically unsaturated group in the side chain examples include, for example, acrylic resins described in known documents (Japanese Patent No. 3120476 and JP-A-8-262221) or commercially available acrylic resins. Examples thereof include a curable resin “Cyclomer (registered trademark) P” (Daicel Chemical Industries, Ltd.) or an alkali-soluble cardo resin.
- an acrylic resin having an ethylenically unsaturated group in the side chain has an average molecular weight (Mw) of 2,000 to 100,000 (measured by gel permeation chromatography using tetrahydrofuran as a carrier and converted using a standard polystyrene calibration curve)
- An acrylic resin having an acid value of 70 to 150 (mg KOH / g) is preferable from the viewpoints of photosensitive characteristics, solubility in an ester solvent, and solubility in an alkali developer.
- a monomer can be further added to the photosensitive black resin composition of the present invention.
- the monomer include polyfunctional or monofunctional acrylic monomers or oligomers.
- polyfunctional acrylic monomers include bisphenol A diglycidyl ether (meth) acrylate, poly (meth) acrylate carbamate, modified bisphenol A epoxy (meth) acrylate, adipic acid 1,6-hexanediol (meth) acrylic acid Esters, propylene oxide (phthalate) anhydride (meth) acrylate, trimellitic acid diethylene glycol (meth) acrylate, rosin-modified epoxy di (meth) acrylate, alkyd-modified (meth) acrylate, known literature (Japanese Patent No.
- a compound having 3 or more functional groups is preferable, a compound having 5 or more functional groups is more preferable, and dipentaerythritol hexa (meth) acrylate or dipentaerythritol penta (meth) acrylate is more preferable.
- the molecule When using a pigment that absorbs ultraviolet rays that is effective for photocrosslinking, such as black pigment, in addition to dipentaerythritol hexa (meth) acrylate or dipentaerythritol penta (meth) acrylate, the molecule contains many aromatic rings. It is preferable to use a (meth) acrylate having a fluorene ring having high water repellency, because the pattern can be controlled to a desired shape during development.
- a mixture of 10 to 60 parts by weight of dipentaerythritol hexa (meth) acrylate and / or dipentaerythritol penta (meth) acrylate and 90 to 40 parts by weight of (meth) acrylate having a fluorene ring is used as a monomer. Is preferred.
- photopolymerization initiators examples include benzophenone compounds, acetophenone compounds, oxanthone compounds, imidazole compounds, benzothiazole compounds, benzoxazole compounds, oxime ester compounds, carbazole compounds, triazine compounds, phosphorus compounds. Or inorganic type photoinitiators, such as titanate, are mentioned.
- benzophenone N, N′-tetraethyl-4,4′-diaminobenzophenone, 4-methoxy-4′-dimethylaminobenzophenone, 2,2-diethoxyacetophenone
- benzoin benzoin methyl ether
- Benzoin isobutyl ether benzyldimethyl ketal
- ⁇ -hydroxyisobutylphenone thioxanthone
- 2-chlorothioxanthone 1-hydroxycyclohexyl phenyl ketone
- 2-methyl-1- [4- (methylthio) phenyl] -2-morpholino-1-propane "Irgacure (registered trademark)" 369
- 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone manufactured by Ciba Specialty Chemicals
- Irgacure registered trademark
- photopolymerization initiators can be used in combination of two or more.
- two types selected from the group consisting of “ADEKA (registered trademark) Cruise” NCI-831 are preferable because a photosensitive black resin composition having high sensitivity and good pattern shape can be obtained.
- an adhesion improving agent can be added for the purpose of improving the adhesiveness with an inorganic substance such as a glass plate or a silicon wafer.
- an adhesion improving agent for example, a silane coupling agent or a titanium coupling agent can be used.
- the addition amount of the adhesion improving agent is usually about 0.2 to 20% by weight based on the weight of the polyimide resin or acrylic resin.
- a polymer dispersant can be added for the purpose of improving the dispersion stability of the light shielding material.
- the polymer dispersant include a polyethyleneimine polymer dispersant, a polyurethane polymer dispersant, and a polyallylamine polymer dispersant. These polymer dispersants are desirably added to such an extent that the photosensitivity and adhesion are not deteriorated, and the addition amount is usually about 1 to 40% by weight with respect to the light shielding material.
- the weight composition ratio of the light shielding material / resin component is preferably in the range of 80/20 to 40/60, and more preferably in the range of 75/25 to 50/50. , More preferable in terms of the balance of adhesion, pattern processability and OD value.
- the resin component is the total of the polymer, monomer, oligomer and polymer dispersant. If the amount of the resin component is too small, the adhesion of the black coating to the substrate becomes poor. Conversely, if the amount of the light shielding material is too small, the optical density per unit thickness (OD value / ⁇ m) is lowered, causing a problem.
- water or an organic solvent can be used in accordance with the dispersion stability of the pigment to be dispersed and the solubility of the resin to be added.
- organic solvent include esters, aliphatic alcohols, (poly) alkylene glycol ether solvents, ketones, amide polar solvents, or lactone polar solvents. preferable. Mixing with other organic solvents is also preferred.
- the organic solvent is preferably an organic solvent that dissolves the acrylic resin. More specifically, for example, benzyl acetate (boiling point 214 ° C.), ethyl benzoate (boiling point 213 ° C.), methyl benzoate (boiling point 200 ° C.), diethyl malonate (boiling point 199 ° C.), 2-ethylhexyl acetate (boiling point 199 ° C.) 2-butoxyethyl acetate (bp 192 ° C.), propylene glycol monoethyl ether acetate (bp 188 ° C.), diethyl oxalate (bp 185 ° C.), ethyl acetoacetate (bp 181 ° C.), cyclohexyl acetate (bp 174 ° C.), 3-methoxy-buty
- solvents examples include ethylene glycol monomethyl ether (boiling point 124 ° C.), ethylene glycol monoethyl ether (boiling point 135 ° C.), propylene glycol monoethyl ether (boiling point 133 ° C.), diethylene glycol monomethyl ether (boiling point 193 ° C.).
- a mixed solvent of two or more components is preferable in order to achieve appropriate volatility and drying properties.
- the boiling points of all the solvents constituting the mixed solvent are 150 ° C. or less, film thickness uniformity cannot be obtained, the film thickness of the coating end part is increased, and the pigment is applied to the base part for discharging the coating liquid from the slit. Aggregates are formed, causing many problems that streaks occur in the coating film.
- the mixed solvent contains a large amount of solvent having a boiling point of 200 ° C. or higher, the surface of the coating film becomes sticky and sticking occurs. Therefore, a mixed solvent containing 30 to 75% by weight of a solvent having a boiling point of 150 to 200 ° C. is desirable.
- the oxetane compound which is an additive in the present invention has a structure represented by the following general formula (A).
- R 1 and R 2 may be the same or different, and R 1 represents hydrogen or an alkyl group having 1 to 10 carbon atoms, and the alkyl group further has a substituent.
- R 2 represents hydrogen, a silyl group, or an alkyl group having 1 to 10 carbon atoms, and the silyl group and the alkyl group may further have a substituent.
- examples of the substituent when the alkyl group further has a substituent include an alkoxy group, an acryloyl group, an acetoxy group, and a silyl group, and R 2 has 1 to 10 carbon atoms.
- R 2 preferably contains an oxetanyl group.
- silyl group when the silyl group further has a substituent, examples thereof include an alkyl group, an alkoxy group, an acryloyl group, and an acetoxy group, and it is preferable that they include an oxetanyl group.
- R 2 preferably has a silyl group, and an oxetane compound represented by the following structural formula (B) is more preferable.
- X represents the following oxetane compound, and n represents a natural number of 10 or less.
- R 1 represents hydrogen or an alkyl group having 1 to 10 carbon atoms, and the alkyl group may further have a substituent.
- substituent when the alkyl group further has a substituent include an alkoxy group, an acryloyl group, and an acetoxy group.
- the addition amount of these oxetane compounds is preferably 1.5 to 10.0% by weight with respect to the total of the light-shielding material and the alkali-soluble resin, and is used in such a range that the solubility in the alkali developer does not become too high. 1.5 to 5.0% by weight is more preferable.
- Examples of the oxetane compound having no silicon atom include “Aron oxetane (registered trademark)” OXT-101 (3-ethyl-3-hydroxymethyloxetane) represented by the following general formula (C), “Aron oxetane (registered trademark)” OXT-221 (3-ethyl-3 ⁇ [(3-ethyloxetane-3-yl) methoxy ⁇ methyl ⁇ oxetane) or "Aron oxetane (registered trademark)” OXT- 121 (main component 1,4-bis [[(3-ethyl-3-oxetanyl) methoxy] methyl] benzene) (above, manufactured by Toa Gosei Co., Ltd.), “Etanacol (registered trademark)” OXBP (bis [(3 -Ethyl-3-oxetanyl) methyl] biphenyl-4
- An oxetane compound having the following formula for example, OX-SQ TX-100 or SI-20; above, manufactured by Toa Gosei Co., Ltd.
- a surfactant can be added to the photosensitive black resin composition of the present invention for the purpose of preventing Benard cells while improving the coatability and the smoothness of the colored film.
- the addition amount of the surfactant is preferably 0.001 to 10% by weight of the pigment, and more preferably 0.01 to 1% by weight. If the addition amount is too small, the coating property and the smoothness of the colored coating are not improved and the effect of preventing Benard cell is not obtained. If the addition amount is too large, the physical properties of the coating film may be poor.
- the surfactant examples include an anionic surfactant such as ammonium lauryl sulfate or polyoxyethylene alkyl ether sulfate triethanolamine, a cationic surfactant such as stearylamine acetate or lauryltrimethylammonium chloride, lauryldimethylamine oxide, or lauryl.
- Amphoteric surfactants such as carboxymethylhydroxyethylimidazolium betaine
- nonionic surfactants such as polyoxyethylene lauryl ether, polyoxyethylene stearyl ether or sorbitan monostearate
- silicone-based interfaces mainly composed of polydimethylsiloxane An activator or a fluorosurfactant is mentioned. In the present invention, one or more of these surfactants can be used.
- the solid content concentration of the resin component (including additives such as monomers and oligomers and a photopolymerization initiator) and the light-shielding material, from the viewpoint of coating properties and drying properties 2 to 30% is preferable, and 5 to 20% is more preferable.
- the photosensitive black resin composition of the present invention preferably consists essentially of a solvent, a resin component and a light shielding material, and more preferably the total amount of the resin component and the light shielding material is 2 to 30%. More preferably, it is 5 to 20%.
- the remainder excluding the solid content is a solvent, and as described above, may further contain a surfactant.
- Examples of the method for producing the photosensitive black resin composition in the present invention include a method of directly dispersing a pigment in a resin solution using a disperser, or a method of dispersing a pigment in water or an organic solvent using a disperser. Then, a method of preparing a pigment dispersion and then mixing it with a resin solution can be mentioned.
- Examples of the method for dispersing the pigment include a ball mill, a sand grinder, a three-roll mill, and a high-speed impact mill.
- a bead mill is preferable from the viewpoint of dispersion efficiency and fine dispersion. Examples of the bead mill include a coball mill, a basket mill, a pin mill, and a dyno mill.
- beads of the bead mill examples include titania beads, zirconia beads, and zircon beads.
- the bead diameter used for dispersion is preferably 0.01 to 5.0 mm, and more preferably 0.03 to 1.0 mm.
- fine dispersed beads 0.03 to 0.10 mm.
- a dispersion bead of 0.10 mm or more because sufficient pulverization force can be obtained and the pigment can be finely dispersed.
- Examples of the method for applying the photosensitive black resin composition on the transparent substrate include a dipping method, a roll coater method, a spinner method, a die coating method, a method using a wire bar, and a transparent substrate in a solution of the photosensitive black resin composition. And a method of spraying a solution of the photosensitive black resin composition on a transparent substrate.
- the transparent substrate include quartz glass, borosilicate glass, aluminosilicate glass, inorganic glass such as soda lime glass whose surface is silica-coated, or an organic plastic film or sheet.
- the photosensitive black resin fat composition After the photosensitive black resin fat composition is applied on a transparent substrate, it is dried and cured by air drying, heat drying or vacuum drying to form a dry film. In order to suppress drying unevenness or transport unevenness when forming the coating, it is preferable to dry and cure the transparent substrate coated with the coating liquid after being dried under reduced pressure using a vacuum dryer equipped with a heating device.
- the dried film thus obtained is usually patterned using a method such as photolithography.
- the dry film obtained from the photosensitive resin can be exposed or developed as it is or after an oxygen-blocking film is formed on the surface thereof to form a desired pattern.
- the resin BM substrate is obtained by heat curing.
- the heat curing conditions vary depending on the resin, but when an acrylic resin is used, it is generally heated at 200 to 250 ° C. for 1 to 60 minutes.
- the color filter substrate for liquid crystal display or the light shielding film for touch panel can be manufactured using the resin BM substrate of the present invention. That is, the present invention can provide a color filter substrate for liquid crystal display and a light-shielding film for touch panel, each including the resin BM substrate of the present invention.
- the color filter is a color filter comprising at least a resin BM substrate in which a resin BM is formed on a partial region of a transparent substrate and pixels formed in a region on the transparent substrate where the resin BM is not formed.
- the resin BM substrate is the resin BM substrate of the present invention.
- Example 1 Methyl methacrylate / methacrylic acid / styrene copolymer as an acrylic resin on titanium nitride particles (manufactured by Nissin Engineering Co., Ltd .; 400 g) produced by a thermal plasma method, according to the method described in publicly known literature (Japanese Patent No. 3120476) After synthesizing (weight composition ratio 30/40/30), 40 parts by weight of glycidyl methacrylate was added, reprecipitated with purified water, filtered and dried to obtain an average molecular weight (Mw) of 15,000 and an acid value of 110 (mgKOH / G) acrylic resin (P-1) was obtained.
- Mw average molecular weight
- P-1 an acid value of 110 (mgKOH / G) acrylic resin
- Propylene glycol monomethyl ether acetate 40 wt% solution (187.5 g) of the obtained acrylic resin (P-1), polymer dispersant (BYK21116; manufactured by BYK Chemie; 62.5 g) and propylene glycol monoethyl ether acetate (890 g) ) was stirred in a tank for 1 hour with a homomixer (manufactured by Tokushu Kika) to obtain Preliminary Dispersion 1.
- Carbon black (TPX1291; made by CABOT; 400 g), acrylic resin (P-1) in 40% by weight propylene glycol monomethyl ether acetate solution (187.5 g), polymer dispersant (BYK21116; 62.5 g) and propylene glycol mono Ethyl ether acetate (890 g) was charged into a tank and stirred with a homomixer for 1 hour to obtain a preliminary dispersion 2. Thereafter, the pre-dispersion liquid 2 was supplied to an ultra apex mill equipped with a centrifugal separator filled with 70% of 0.10 mm ⁇ zirconia beads, dispersed at a rotational speed of 8 m / s for 2 hours, and a solid content concentration of 20% by weight.
- a carbon black pigment dispersion CB-1 having a pigment / resin (weight ratio) of 80/20 was obtained.
- a propylene glycol monomethyl ether acetate 40 wt% solution (5.50 g) of acrylic polymer (P-1) and dipentaerythritol hexaacrylate (manufactured by Nippon Kayaku Co., Ltd.) as a polyfunctional monomer 50 wt% solution (3.61 g), propylene glycol monoethyl ether acetate of “Aron oxetane” OXT-191 (hereinafter referred to as “oxetane compound 1”; manufactured by Toagosei Co., Ltd.), which is an oxetane compound as an adhesion improving agent A solution (0.41 g), KBM5103 (manufactured by Shin-Etsu Chemical Co., Ltd .; 0.41 g) and a 10% by weight solution of propylene glycol monoethyl ether acetate (0.24 g) of a silicone surfactant BYK333 as a sur
- composition 1 was prepared.
- the prepared photosensitive black resin composition 1 is filtered through a 2 ⁇ m Teflon (registered trademark) filter and spin coated on a soda glass substrate (1H-DS; so that the film thickness becomes 1 ⁇ m (after post-baking)).
- Micasa Co., Ltd. the coated substrate was heat-treated for 2 minutes with pin-shaped projections on a hot plate at 90 ° C., and the substrate was further left to stand on the hot plate for 2 minutes for prebaking. .
- a mask aligner (PEM-6M; manufactured by Union Optics Co., Ltd.) was used for this coating film, and ultraviolet rays were exposed at a dose of 200 mJ / cm 2 through a resolution test mask.
- a patterning substrate was obtained by developing with an alkaline developer of 0.1 wt% TMAH aqueous solution and then washing with pure water.
- substrate was hold
- Example 2 Implemented except that OX-SQ TX-100 (hereinafter referred to as “oxetane compound 2”; manufactured by Toa Gosei Co., Ltd.), which is an oxetane compound having a silsesquioxane structure, was used as an adhesion improver in place of oxetane compound 1.
- oxetane compound 2 OX-SQ TX-100
- Example 3 Implemented except that OX-SQ SI-20 (hereinafter referred to as “oxetane compound 3”; manufactured by Toa Gosei Co., Ltd.), which is an oxetane compound having a silsesquioxane structure, was used instead of oxetane compound 1 as an adhesion improver to be used.
- OX-SQ SI-20 hereinafter referred to as “oxetane compound 3”; manufactured by Toa Gosei Co., Ltd.
- oxetane compound 3 which is an oxetane compound having a silsesquioxane structure
- photosensitive black resin composition 3 was obtained.
- substrate 3 was obtained similarly to Example 1 using the photosensitive black resin composition 3.
- Example 4 Photosensitivity in the same manner as in Example 1 except that “Aron oxetane (registered trademark)” TMSOX (hereinafter referred to as “oxetane compound 4”; manufactured by Toagosei Co., Ltd.) was used in place of oxetane compound 1 as the adhesion improver to be used. A black resin composition 4 was obtained. Moreover, the resin BM board
- Example 5 The same procedure as in Example 1 was performed except that “Aron oxetane (registered trademark)” OXT-101 (hereinafter referred to as “oxetane compound 5”; manufactured by Toagosei Co., Ltd.) was used instead of oxetane compound 1 as the adhesion improver to be used.
- the photosensitive black resin composition 5 was obtained.
- substrate 5 was obtained similarly to Example 1 using the photosensitive black resin composition 5.
- Example 6 Photosensitive in the same manner as in Example 1 except that Alonoxetane (registered trademark) “OXT-221 (hereinafter referred to as“ oxetane compound 6 ”; manufactured by Toagosei Co., Ltd.) was used in place of oxetane compound 1 as the adhesion improver to be used. Black resin composition 6 was obtained. Moreover, the resin BM board
- Example 7 A photosensitive black resin composition 7 was obtained in the same manner as in Example 1 except that the addition amount of the oxetane compound 1 was changed to 3.0% as an adhesion improver to be used. Moreover, the resin BM board
- Example 8 A photosensitive black resin composition 8 was obtained in the same manner as in Example 1 except that the addition amount of the oxetane compound 1 was changed to 5.0% as the adhesion improver to be used. Moreover, the resin BM board
- Example 9 A photosensitive black resin composition 9 was obtained in the same manner as in Example 1 except that the amount of oxetane compound 1 added was 7.0% as an adhesion improver to be used. Moreover, the resin BM board
- Example 10 A photosensitive black resin composition 10 was obtained in the same manner as in Example 1 except that the addition amount of the oxetane compound 1 was 10.0% as the adhesion improver to be used. Moreover, the resin BM board
- Example 11 “ADEKA (registered trademark) CRUISE” NCI-831 (1.69 g) was added to propylene glycol monoethyl ether acetate (19.05 g) as a photopolymerization initiator and stirred until the solid content was dissolved.
- a propylene glycol monomethyl ether acetate 40 wt% solution (6.73 g) of acrylic polymer (P-1), dipentaerythritol hexaacrylate (manufactured by Nippon Kayaku Co., Ltd.) as a polyfunctional monomer 50
- a 50% by weight solution (0.41 g) of propylene glycol monoethyl ether acetate of OXT-191 (manufactured by Toagosei Co., Ltd.), which is an oxetane compound as an adhesion improver, and Shin-Etsu Chemical Co., Ltd.
- Example 12 “ADEKA (registered trademark) CRUISE” NCI-831 (1.69 g) was added to propylene glycol monoethyl ether acetate (9.57 g) as a photopolymerization initiator and stirred until the solid content was dissolved.
- acrylic resin P-1
- dipentaerythritol hexaacrylate manufactured by Nippon Kayaku Co.
- Comparative Example 1 A photosensitive black resin composition 13 was obtained in the same manner as in Example 1 except that tetramethyl orthosilicate was used in place of the oxetane compound 1 as the adhesion improver to be used. Moreover, the resin BM board
- substrate 13 was obtained similarly to Example 1 using the photosensitive black resin composition 13. FIG. 1 A photosensitive black resin composition 13 was obtained in the same manner as in Example 1 except that tetramethyl orthosilicate was used in place of the oxetane compound 1 as the adhesion improver to be used. Moreover, the resin BM board
- Comparative Example 2 A photosensitive black resin composition 14 was obtained in the same manner as in Example 1 except that no oxetane compound was added as an adhesion improver to be used. Moreover, the resin BM board
- substrate 14 was obtained similarly to Example 1 using the photosensitive black resin composition 14. FIG. 1 A photosensitive black resin composition 14 was obtained in the same manner as in Example 1 except that no oxetane compound was added as an adhesion improver to be used. Moreover, the resin BM board
- Comparative Example 3 A photosensitive black resin composition 15 was obtained in the same manner as in Example 1 except that the addition amount of the oxetane compound 1 was changed to 0.5% as the adhesion improver to be used. Moreover, the resin BM board
- Comparative Example 4 A photosensitive black resin composition 16 was obtained in the same manner as in Example 1 except that the addition amount of the oxetane compound 1 was 13.0% as an adhesion improver to be used. Moreover, the resin BM board
- OD value This is obtained from the following relational expression using an X-rite 361T (visual) densitometer.
- OD value log 10 (I 0 / I)
- I 0 the incident light intensity
- I the transmitted light intensity. Since the OD value is proportional to the film thickness, the light shielding property is proportional to the film thickness. Therefore, in the present invention, the OD value is shown as an OD value per 1.0 ⁇ m.
- the addition amount of the oxetane compound is 1.5% or less or 10.0% or more with respect to the solid content of the paste, the result is inferior in developing adhesion, and the appropriate addition amount is 1.5 to 10.0%. It is.
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Abstract
Description
(1) 少なくとも遮光材、アルカリ可溶性樹脂、光重合開始剤及び溶媒を含む感光性黒色樹脂組成物において、少なくとも下記一般式(A)の構造を有するオキセタン化合物を添加剤として含み、上記オキセタン化合物を遮光材とアルカリ可溶性樹脂との総和に対して1.5~10.0重量%含む、感光性黒色樹脂組成物。
(2) 上記オキセタン化合物がシリル基を有する、上記(1)に記載の感光性黒色樹脂組成物。
(3) 上記オキセタン化合物が下記構造式(B)で表される、上記(1)又は(2)に記載の感光性黒色樹脂組成物。
(4) 上記(1)~(3)のいずれかに記載の感光性黒色樹脂組成物を透明基板上に塗布し、パターン形成して得られた樹脂ブラックマトリックス基板。
上記一般式(A)において、アルキル基がさらに置換基を有する場合の置換基としては、例えば、アルコキシ基、アクリロイル基、アセトキシ基又はシリル基が挙げられるが、R2が炭素数1~10のアルキル基の場合、R2がオキセタニル基を含むことが好ましい。また、シリル基がさらに置換基を有する場合には、例えば、アルキル基、アルコキシ基、アクリロイル基又はアセトキシ基が挙げられるが、それらがオキセタニル基を含むことが好ましい。
上記構造式(B)で表されるオキセタン化合物の中でも、n=3~6の範囲であるオキセタン化合物が好ましい。上記構造式(B)においても、アルキル基がさらに置換基を有する場合の置換基としては、例えば、アルコキシ基、アクリロイル基又はアセトキシ基が挙げられる。
熱プラズマ法により製造したチタン窒化物粒子(日清エンジニアリング(株)製;400g)にアクリル樹脂として、公知文献(特許第3120476号公報)記載の方法により、メチルメタクリレート/メタクリル酸/スチレン共重合体(重量組成比30/40/30)を合成後、グリシジルメタクリレート40重量部を付加させ、精製水で再沈、濾過及び乾燥することにより、平均分子量(Mw)15,000及び酸価110(mgKOH/g)のアクリル樹脂(P-1)を得た。得られたアクリル樹脂(P-1)のプロピレングリコールモノメチルエーテルアセテート40重量%溶液(187.5g)、高分子分散剤(BYK21116;ビックケミー社製;62.5g)及びプロピレングリコールモノエチルエーテルアセテート(890g)をタンクに仕込み、ホモミキサー(特殊機化製)で1時間撹拌し、予備分散液1を得た。その後、0.10mmφジルコニアビーズ(東レ製)を70%充填した遠心分離セパレーターを具備した、ウルトラアペックスミル(寿工業製)に予備分散液1を供給し、回転速度8m/sで2時間分散を行い、固形分濃度25重量%、顔料/樹脂(重量比)=80/20のチタンブラック顔料分散液TB-1を得た。
使用する密着改良剤としてオキセタン化合物1の代わりにシルセスキオキサン構造を有するオキセタン化合物であるOX-SQ TX-100(以下、「オキセタン化合物2」;東亜合成株式会社製)を用いた以外は実施例1と同様にして感光性黒色樹脂組成物2を得た。また、感光性黒色樹脂組成物2を用いて実施例1と同様に樹脂BM基板2を得た。
使用する密着改良剤としてオキセタン化合物1の代わりにシルセスキオキサン構造を有するオキセタン化合物であるOX-SQ SI-20(以下、「オキセタン化合物3」;東亜合成株式会社製)を用いた以外は実施例1と同様にして感光性黒色樹脂組成物3を得た。また、感光性黒色樹脂組成物3を用いて実施例1と同様に樹脂BM基板3を得た。
使用する密着改良剤としてオキセタン化合物1の代わりに“アロンオキセタン(登録商標)”TMSOX(以下、「オキセタン化合物4」;東亜合成株式会社製)を用いた以外は実施例1と同様にして感光性黒色樹脂組成物4を得た。また、感光性黒色樹脂組成物4を用いて実施例1と同様に樹脂BM基板4を得た。
使用する密着改良剤としてオキセタン化合物1の代わりに“アロンオキセタン(登録商標)”OXT-101(以下、「オキセタン化合物5」;東亜合成株式会社製)を用いた以外は実施例1と同様にして感光性黒色樹脂組成物5を得た。また、感光性黒色樹脂組成物5を用いて実施例1と同様に樹脂BM基板5を得た。
使用する密着改良剤としてオキセタン化合物1の代わりにアロンオキセタン(登録商標)”OXT-221(以下、「オキセタン化合物6」;東亜合成株式会社製)を用いた以外は実施例1と同様にして感光性黒色樹脂組成物6を得た。また、感光性黒色樹脂組成物6を用いて実施例1と同様に樹脂BM基板6を得た。
使用する密着改良剤としてオキセタン化合物1の添加量を3.0%とした以外は実施例1と同様にして感光性黒色樹脂組成物7を得た。また、感光性黒色樹脂組成物7を用いて実施例1と同様に樹脂BM基板7を得た。
使用する密着改良剤としてオキセタン化合物1の添加量を5.0%とした以外は実施例1と同様にして感光性黒色樹脂組成物8を得た。また、感光性黒色樹脂組成物8を用いて実施例1と同様に樹脂BM基板8を得た。
使用する密着改良剤としてオキセタン化合物1の添加量を7.0%とした以外は実施例1と同様にして感光性黒色樹脂組成物9を得た。また、感光性黒色樹脂組成物9を用いて実施例1と同様に樹脂BM基板9を得た。
使用する密着改良剤としてオキセタン化合物1の添加量を10.0%とした以外は実施例1と同様にして感光性黒色樹脂組成物10を得た。また、感光性黒色樹脂組成物10を用いて実施例1と同様に樹脂BM基板10を得た。
プロピレングリコールモノエチルエーテルアセテート(19.05g)に、光重合開始剤として“アデカ(登録商標)クルーズ”NCI-831(1.69g)を添加し、固形分が溶解するまで撹拌した。さらにアクリルポリマー(P-1)のプロピレングリコールモノメチルエーテルアセテート40重量%溶液(6.73g)、多官能モノマーとしてジペンタエリスリトールヘキサアクリレート(日本化薬(株)製)のプロピレングリコールモノエチルエーテルアセテート50重量%溶液(3.62g)、密着改良剤としてオキセタン化合物であるOXT-191(東亜合成株式会社製)のプロピレングリコールモノエチルエーテルアセテート50重量%溶液(0.41g)、及び信越化学(株)製KBM5103(0.41g)、界面活性剤としてシリコーン系界面活性剤BYK333のプロピレングリコールモノエチルエーテルアセテート10重量%溶液(0.24g)を添加し、室温にて1時間撹拌を行うことで感光性レジストを得た。この感光性レジストに上記チタンブラック顔料分散液TB-1を27.84g添加することで全固形分濃度23%、顔料/樹脂(重量比)=46/54の感光性黒色樹脂組成物11を調製した。また、感光性黒色樹脂組成物11を用いて実施例1と同様に樹脂BM基板11を得た。
プロピレングリコールモノエチルエーテルアセテート(9.57g)に、光重合開始剤として“アデカ(登録商標)クルーズ”NCI-831(1.69g)を添加し、固形分が溶解するまで撹拌した。さらにアクリル樹脂(P-1)のプロピレングリコールモノメチルエーテルアセテート40重量%溶液(4.28g)、多官能モノマーとしてジペンタエリスリトールヘキサアクリレート(日本化薬(株)製)のプロピレングリコールモノエチルエーテルアセテート50重量%溶液(3.60g)、密着改良剤としてオキセタン化合物であるOXT-191(東亜合成株式会社製)のプロピレングリコールモノエチルエーテルアセテート50重量%溶液(0.41g)、KBM5103(0.41g)及び界面活性剤としてシリコーン系界面活性剤BYK333のプロピレングリコールモノエチルエーテルアセテート10重量%溶液(0.24g)を添加し、室温にて1時間撹拌を行うことで感光性レジストを得た。この感光性レジストにカーボンブラック顔料分散液CB-1を19.9g添加することで、全固形分濃度23%、顔料/樹脂(重量比)=46/54の感光性黒色樹脂組成物12を調製した。また、感光性黒色樹脂組成物12を用いて実施例1と同様に樹脂BM基板12を得た。
使用する密着改良剤としてオキセタン化合物1の代わりにオルトケイ酸テトラメチルを用いた以外は実施例1と同様にして感光性黒色樹脂組成物13を得た。また、感光性黒色樹脂組成物13を用いて実施例1と同様に樹脂BM基板13を得た。
使用する密着改良剤としてオキセタン化合物を添加しなかった事以外は実施例1と同様にして感光性黒色樹脂組成物14を得た。また、感光性黒色樹脂組成物14を用いて実施例1と同様に樹脂BM基板14を得た。
使用する密着改良剤としてオキセタン化合物1の添加量を0.5%とした以外は実施例1と同様にして感光性黒色樹脂組成物15を得た。また、感光性黒色樹脂組成物15を用いて実施例1と同様に樹脂BM基板15を得た。
使用する密着改良剤としてオキセタン化合物1の添加量を13.0%とした以外は実施例1と同様にして感光性黒色樹脂組成物16を得た。また、感光性黒色樹脂組成物16を用いて実施例1と同様に樹脂BM基板16を得た。得られた樹脂BM基板16について、パターン形状、現像接着性、及びOD値について下記の方法で評価を行った。結果を表1に示す。
上記方法と同様に、線幅の異なる樹脂BMを形成し、各線幅に於いてパターンの剥がれや欠けが発生していないか目視で判定を行った。また、判定は、○:欠け・剥がれ無し、×:欠け剥がれ有りとした。
パターン加工部分の直線性についてBH-C1410(オリンパス(株)製)を用いて評価を行った。判定については、直線性が良好であるものは○、蛇行や形状端部に欠けの見られるものは程度に応じて△、×とした。
X-rite 361T(visual)densitometerを用いて下記の関係式より求めたものである。
OD値 = log10(I0/I)
ここで、I0は入射光強度、Iは透過光強度である。なお、OD値は膜厚に比例するので、遮光性の大きさは膜厚に比例するので、本発明では1.0μmあたりのOD値として示している。
Claims (4)
- 前記オキセタン化合物がシリル基を有する、請求項1記載の感光性黒色樹脂組成物。
- 請求項1~3のいずれか一項記載の感光性黒色樹脂組成物を透明基板上に塗布し、パターン形成して得られた、樹脂ブラックマトリックス基板。
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- 2013-03-08 SG SG11201405096WA patent/SG11201405096WA/en unknown
- 2013-03-08 WO PCT/JP2013/056437 patent/WO2013146183A1/ja active Application Filing
- 2013-03-08 JP JP2013514481A patent/JP5333696B1/ja not_active Expired - Fee Related
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KR102442301B1 (ko) * | 2017-09-26 | 2022-09-13 | 후지필름 가부시키가이샤 | 구조체, 격벽 형성용 조성물, 고체 촬상 소자 및 화상 표시 장치 |
Also Published As
Publication number | Publication date |
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SG11201405096WA (en) | 2014-11-27 |
KR20140148377A (ko) | 2014-12-31 |
KR101998449B1 (ko) | 2019-07-09 |
JP5333696B1 (ja) | 2013-11-06 |
TWI575314B (zh) | 2017-03-21 |
TW201348864A (zh) | 2013-12-01 |
JPWO2013146183A1 (ja) | 2015-12-10 |
CN104204945B (zh) | 2017-10-03 |
CN104204945A (zh) | 2014-12-10 |
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