WO2018038083A1 - 黒色顔料とその製造方法、顔料分散液、感光性組成物およびその硬化物 - Google Patents
黒色顔料とその製造方法、顔料分散液、感光性組成物およびその硬化物 Download PDFInfo
- Publication number
- WO2018038083A1 WO2018038083A1 PCT/JP2017/029878 JP2017029878W WO2018038083A1 WO 2018038083 A1 WO2018038083 A1 WO 2018038083A1 JP 2017029878 W JP2017029878 W JP 2017029878W WO 2018038083 A1 WO2018038083 A1 WO 2018038083A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- black pigment
- pigment
- group
- weight
- black
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- VOZBMWWMIQGZGM-UHFFFAOYSA-N c(cc1)ccc1-[n]1c(-c(cc2)ccc2-c(cc2)cc3c2c(-c2cc4ccccc4cc2)c(cccc2)c2c3-c2cc(cccc3)c3cc2)nc2ccccc12 Chemical compound c(cc1)ccc1-[n]1c(-c(cc2)ccc2-c(cc2)cc3c2c(-c2cc4ccccc4cc2)c(cccc2)c2c3-c2cc(cccc3)c3cc2)nc2ccccc12 VOZBMWWMIQGZGM-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0084—Dispersions of dyes
- C09B67/0085—Non common dispersing agents
- C09B67/009—Non common dispersing agents polymeric dispersing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1535—Five-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3415—Five-membered rings
- C08K5/3417—Five-membered rings condensed with carbocyclic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
- C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
- C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
- C09B29/3608—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered heterocyclic ring with only one nitrogen as heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/62—Cyclic imides or amidines of peri-dicarboxylic acids of the anthracene, benzanthrene, or perylene series
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B57/00—Other synthetic dyes of known constitution
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B57/00—Other synthetic dyes of known constitution
- C09B57/12—Perinones, i.e. naphthoylene-aryl-imidazoles
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0001—Post-treatment of organic pigments or dyes
- C09B67/0004—Coated particulate pigments or dyes
- C09B67/0007—Coated particulate pigments or dyes with inorganic coatings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
- C09B67/0034—Mixtures of two or more pigments or dyes of the same type
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
- C09B67/0041—Blends of pigments; Mixtured crystals; Solid solutions mixtures containing one azo dye
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0084—Dispersions of dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B7/00—Indigoid dyes
- C09B7/08—Other indole-indigos
-
- 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
- G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
- G03F7/0007—Filters, e.g. additive colour filters; Components for display devices
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/0045—Photosensitive materials with organic non-macromolecular light-sensitive compounds not otherwise provided for, e.g. dissolution inhibitors
-
- 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
- G03F7/022—Quinonediazides
- G03F7/023—Macromolecular quinonediazides; Macromolecular additives, e.g. binders
-
- 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
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
-
- 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
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
- G03F7/037—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polyamides or polyimides
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
- G03F7/105—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having substances, e.g. indicators, for forming visible images
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
-
- 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
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/17—Passive-matrix OLED displays
- H10K59/173—Passive-matrix OLED displays comprising banks or shadow masks
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K59/8792—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. black layers
Definitions
- the present invention relates to a black pigment and a production method thereof, a pigment dispersion, a photosensitive composition and a cured product thereof.
- an organic EL display has a first electrode having translucency such as a silver / magnesium alloy on the light extraction side of the light emitting element, and tin indium oxide (ITO) or the like on the side of the light emitting element where light is not extracted.
- ITO tin indium oxide
- insulation is provided between the first electrode and the second electrode. It has a patterned pixel dividing layer having a layer function.
- the first electrode and the second electrode are generally formed by sputtering, and the pixel division layer is required to have a low taper pattern shape in order to prevent disconnection of the first electrode.
- An organic EL display is a self-luminous display device that emits light using energy generated by recombination of electrons injected from a cathode and holes injected from an anode. Therefore, when external light such as sunlight is incident, visibility and contrast are reduced due to the reflection of the external light, and thus a technique for reducing external light reflection is required.
- a technique for reducing external light reflection for example, a method of forming a pixel dividing layer having a light shielding property using a photosensitive composition can be mentioned.
- the colorant for imparting light-shielding properties include organic black pigments that have excellent insulating properties and high coloring power.
- the present invention includes (a) a nucleus containing at least one organic black pigment selected from the group consisting of benzodifuranone-based black pigments, perylene-based black pigments, azo-based black pigments and isomers thereof, and (b) silica, metal A black pigment having a coating layer comprising an oxide and / or a metal hydroxide is provided.
- the black pigment of the present invention it is possible to pattern the pixel dividing layer while suppressing the generation of development residue, and to improve the light emission characteristics of the organic EL display.
- FIG. 1 is a schematic diagram showing undulation that is an index of pattern linearity of a pixel division layer containing a black pigment of the present invention in an example.
- FIG. 2 is a schematic view showing a method for producing an organic EL display having a pixel division layer containing the black pigment of the present invention in Examples.
- a numerical range represented by using “to” means a range including numerical values described before and after “to” as a lower limit value and an upper limit value.
- the pixel dividing layer means a pixel dividing layer for an organic EL display.
- the organic EL display means a rigid type organic EL display that cannot be bent and a flexible type organic that can be bent. Refers to both EL displays.
- the light shielding property indicates the degree of shielding light having a wavelength of 380 to 780 nm in the visible light region, and the higher the light shielding property, the lower the light transmittance.
- “CI” used for the name of the colorant is an abbreviation of Color Index Generic Name. Based on the color index issued by The Society of Dyers and Colorists, the Color Index is registered for the color index registered in the color index. Generic Name represents the chemical structure or crystal form of the pigment or dye.
- benzodifuranone-based black pigments it was found that development residues were generated due to the lack of chemical durability inherent in the pigments. More specifically, benzodifuranone-based black pigments have a very low alkali resistance compared to inorganic black pigments such as carbon black and titanium black or many non-black organic pigments such as blue and red. During patterning in the process, the crystal structure of the benzodifuranone-based black pigment is destroyed and dissolved or semi-dissolved by contact with the alkaline developer that has penetrated through the binder component, and a decomposition component is generated and fixed on the substrate. It was found that a residue was generated at the opening of the divided layer.
- Decomposition of the benzodifuranone-based black pigment is accompanied by a color change from black to brown, a decrease in light shielding properties, and the generation of a bad smell, and loses the characteristics inherent to the benzodifuranone-based black pigment.
- Pixel division of organic EL display by the so-called negative photolithography method where the exposed portion film is photocured by pattern exposure through a mask to reduce alkali solubility, and the unexposed portion film is removed with an alkali developer.
- the development residue is also caused by the film of the exposed area that has been peeled off during development re-deposited on the unexposed area substrate. Occurs.
- the pixel division layer is required to have a low taper pattern shape in order to prevent disconnection of the first electrode, and a low taper pattern is formed by reflowing the developed film in a curing process described later.
- the alkaline developer tends to penetrate into the film surface layer and / or the film side surface of the exposed area, the decomposition reaction of the benzodifuranone black pigment is promoted, and the interfacial adhesion strength between the pigment / binder is abrupt. Due to the lowering, the film in the exposed portion is peeled off locally and accumulates in the opening and adheres to the substrate, thereby generating more development residue.
- the development residue in the opening that finally becomes the pixel portion having the light emitting element is visually recognized as a granular black defect arranged non-uniformly in the organic EL display, and the effective area contributing to light emission per pixel is determined by the pixel.
- the major axis of the development residue derived from the development residue enlarges to the same or larger size and inhibits light emission, so that the development residue directly reduces the value as a display device. .
- Pattern exposure through a mask increases the alkali solubility of the exposed portion film relative to the alkali solubility of the unexposed portion film, and uses the dissolution contrast to expose the exposed portion film with an alkali developer.
- the pixel division layer of the organic EL display is formed by a so-called positive type photolithography method, the decomposition reaction of the benzodifuranone-based black pigment is promoted, and a development residue is generated in the opening.
- perylene-based black pigments and azo-based black pigments have a rigid structure and thus have high chemical durability and sufficient alkali resistance as a single pigment, but compared with the aforementioned benzodifuranone-based black pigments.
- the dispersibility is low, and re-aggregation and increase in viscosity with time are liable to occur when a pigment dispersion containing these as a colorant and a photosensitive composition produced using the same are stored.
- the present inventors coat the surface of these organic black pigments with an inorganic coating material. It was investigated. As a result, all of the benzodifuranone-based black pigment, perylene-based black pigment, and azo-based black pigment have sufficiently high acid resistance that can withstand the surface treatment process, and can be coated with an inorganic coating material in an aqueous dispersion medium. I found it possible. In addition to protecting the organic black pigment in the development process, it can reduce the interaction with the surface of the substrate, while also having a function of dramatically improving the dispersibility of the hardly dispersible organic black pigment.
- a coating layer containing silica, metal oxide and / or metal hydroxide is extremely effective in suppressing development residue derived from the characteristics inherent to organic black pigments.
- the present invention has been completed. Further, when the film surface of the ITO electrode is viewed from a cross section, it is a thin film having high flatness when viewed macroscopically, but when viewed more microscopically, a granular unevenness level of several nanometers in the film depth direction is observed. Is a thin film in which a development residue derived from a pigment is easily generated, which is one of the reasons why the solution of this problem has become extremely difficult. It has been found that when it is an ITO electrode, it has a particularly remarkable residue suppressing effect.
- the black pigment of the present invention comprises (a) a nucleus containing at least one organic black pigment selected from the group consisting of benzodifuranone-based black pigments, perylene-based black pigments, azo-based black pigments and isomers thereof, and (b) And a coating layer containing silica, metal oxide and / or metal hydroxide.
- the core in the black pigment of the present invention is at least selected from the group consisting of (a) benzodifuranone-based black pigment, perylene-based black pigment, azo-based black pigment, and isomers thereof. Contains one organic black pigment.
- the nucleus may be composed of only the above-described organic black pigment, or may be obtained by subjecting the organic black pigment to organic treatment such as pigment derivative treatment described later.
- the chemical structure of the components constituting the nucleus is determined by grinding the black pigment of the present invention with a mortar and pestle to remove the coating layer and collecting the exposed nucleus, and time-of-flight secondary ion mass spectrometry (TOF- SIMS), time-of-flight mass spectrometry (TOF-MS), NMR analysis, LC-MS, ICP mass spectrometry, infrared absorption spectrum, identification of chemical structure and crystal form by combining powder X-ray diffraction with CuK ⁇ rays Can do.
- a solution obtained by immersing the collected nucleus in an amide-based organic solvent such as dimethylformamide or N-methylpyrrolidone may be used as an analysis sample.
- the (a) benzodifuranone-based black pigment contained in the nucleus of the black pigment of the present invention preferably refers to a compound represented by the general formula (1) or (2) or an isomer thereof.
- the isomers herein include tautomers.
- the isomer may be contained in the nucleus as a mixture, or may be contained in the nucleus as a mixed crystal.
- R 1 and R 6 each independently represent a hydrogen atom, CH 3 , CF 3 , a fluorine atom or a chlorine atom.
- R 2 , R 3 , R 4 , R 5 , R 7 , R 8 , R 9 and R 10 are each independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 12 carbon atoms, or 1 to 12 carbon atoms.
- R 2 and R 3 , R 3 and R 4 , R 4 and R 5 , R 7 and R 8 , R 8 and R 9 , R 9 and R 10 are bonded directly or by O, S, NH or NR 11 May be.
- R 11 and R 12 are each independently an alkyl group having 1 to 12 carbon atoms, a cycloalkyl group having 1 to 12 carbon atoms, an alkenyl group having 1 to 12 carbon atoms, a cycloalkenyl group having 1 to 12 carbon atoms, or An alkynyl group having 1 to 12 carbon atoms is represented.
- R 2 , R 4 , R 5 , R 7 , R 9 and R 10 are preferably hydrogen atoms
- R 3 and R 8 are hydrogen atoms
- SO 3 from the viewpoint of deagglomeration into deionized water in the surface treatment step.
- H SO 3 ⁇ , SO 2 NR 11 R 12 or COOH is preferred
- R 1 to R 10 are more preferably hydrogen atoms. That is, a benzodifuranone-based black pigment represented by the formula (3) is more preferable.
- the (a) perylene black pigment contained in the nucleus of the black pigment of the present invention is a compound represented by the general formula (4), a compound represented by the general formula (5), C.I. I. Pigment black 31, C.I. I. It means Pigment Black 32.
- the compound represented by the general formula (4) and the compound represented by the general formula (5) may be contained in the nucleus as a mixture, or may be contained in the nucleus as a mixed crystal.
- the term “mixture” as used herein means that a plurality of types of molecular structures constituting one pigment particle may be used in the production method of the pigment.
- R 13 to R 20 each independently represent a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or a hydroxyl group.
- R 13 to R 20 are preferably hydrogen atoms from the viewpoints of light shielding properties and heat resistance. That is, a perylene black pigment represented by the formula (6) or the formula (7) is more preferable.
- the (a) azo black pigment contained in the nucleus of the black pigment of the present invention refers to a compound represented by the general formula (8).
- X represents an organic group having an isoindolinone structure or an organic group having an isoindoline structure
- Y represents an alkyl group having 1 to 3 carbon atoms and an alkoxy group having 1 to 3 carbon atoms.
- azo black pigment represented by formula (9) an azo black pigment represented by formula (10).
- the average primary particle size of the (a) benzodifuranone-based black pigment, perylene-based black pigment, and azo-based black pigment contained in the core is preferably 30 nm or more, 40 nm or more is more preferable. From the viewpoint of improving the pattern linearity of the pixel division layer, 150 nm or less is preferable, and 100 nm or less is more preferable.
- the average primary particle diameter refers to a number average value of primary particle diameters calculated by a particle size measurement method using an image analysis type particle size distribution measuring apparatus.
- a transmission electron microscope (TEM) can be used for taking an image, and an average primary particle diameter can be calculated from an image in which 100 or more primary particles of the pigment are taken under the condition of a magnification of 50000 times. .
- the average value of the major axis and the minor axis is defined as the primary particle diameter.
- Image analysis particle size distribution software Mac-View manufactured by Mountec Co., Ltd. can be used for image analysis.
- the average primary particle size may be adjusted to a desired range by wet pulverization such as a solvent salt milling method.
- Solvent salt milling refers to a method in which a mixture of a pigment, a water-soluble inorganic salt, and a water-soluble solvent is kneaded and washed in a high-viscosity paste state.
- the water-soluble inorganic salt is not particularly limited as long as it is in the form of particles functioning as an attrition material. Among them, sodium chloride, potassium chloride or potassium sulfate is preferable, and the average primary particle diameter is preferably about 0.5 to 50 ⁇ m. .
- water-soluble solvent examples include organic solvents such as alcohol solvents and glycol solvents.
- the pulverization force by the solvent salt milling method is far superior to the pulverization force in the wet media dispersion treatment described later.
- the black pigment of the present invention is used for the pixel division layer of an organic EL display, the primary particle diameter is controlled. This is useful for obtaining good pattern linearity.
- the amount of degassing of the organic black pigment is preferably as low as possible under a high temperature condition of preferably 200 ° C. or higher, more preferably 250 ° C. or higher, from the viewpoint of improving the heat resistance required for the pixel dividing layer.
- the core preferably has a surface pH of less than 7, that is, an acidic pigment, more preferably less than 6.
- the surface pH as used herein refers to the pH of an aqueous pigment suspension obtained by mixing 5% by weight of pigment and 95% by weight of water subjected to deionization and decarboxylation, and stirring the mixture in an airtight container for 1 hour. The value measured under the condition of a liquid temperature of 25 ° C. with a pH meter.
- the surface pH less than 7 when the coating material is coated on the core, it is easy to proceed with deaggregation in the aqueous dispersion medium in the below-described preparation step, avoiding the coating on the aggregated core, The coverage can be improved.
- benzodifuranone-based black pigments are preferable because they have a low surface pH and excellent deagglomeration in an aqueous dispersion medium.
- the core may contain a pigment derivative.
- a pigment derivative is a dispersion aid in which one or more organic groups for controlling acidity or basicity are introduced into the molecular structure of the base pigment by derivatization treatment. In the technical common sense of a trader, it is usually used to increase the adsorption capacity of the resin-type dispersant, but in the present invention, in order to promote deagglomeration in the preparation process described later and to increase the average coverage of the core. It can be suitably used as an auxiliary component.
- the base pigment examples include organic pigments such as phthalocyanine pigments, azo pigments, quinacridone pigments, quinophthalone pigments, diketopyrrolopyrrole pigments, and the organic groups include acidic groups, basic groups, and aromatic groups.
- organic pigments such as phthalocyanine pigments, azo pigments, quinacridone pigments, quinophthalone pigments, diketopyrrolopyrrole pigments
- the organic groups include acidic groups, basic groups, and aromatic groups.
- a sulfonic acid group, an alkali metal base of sulfonic acid, an amine base of sulfonic acid, a sulfonamido group, and a phthalimidoalkyl group may be used. Good.
- the pigment derivative is mixed with an organic black pigment in advance when performing solvent salt milling or wet media dispersion treatment in the preparation step described later, and adsorbed / supported on the surface of the organic black pigment, thereby allowing the pigment derivative to be used in an aqueous dispersion medium. Deagglomeration can be improved.
- the amount of the pigment derivative used is preferably 1 part by weight or more with respect to 100 parts by weight of the organic black pigment in order to obtain the effect of promoting the deagglomeration of the organic black pigment, and is 10 from the viewpoint of heat resistance required for the pixel dividing layer. Part by weight or less is preferred. More specifically, when a perylene-based black pigment is included, the combination with a copper phthalocyanine-based pigment derivative is used.
- the organic group for controlling the acidity or basicity is preferably a sulfonic acid group from the viewpoint that the surface of the nucleus can be anionic to further improve the deaggregation property.
- the use of the pigment derivative is particularly useful in the case where the core is electrically neutral and has a highly hydrophobic perylene-based black pigment and / or azo-based black pigment in its core.
- the black pigment of the present invention has (b) a coating layer containing silica, metal oxide and / or metal hydroxide.
- the coating refers to (a) a nucleus containing at least one organic black pigment selected from the group consisting of benzodifuranone-based black pigments, perylene-based black pigments, azo-based black pigments and isomers thereof, which will be described later.
- the average covering ratio is preferably covered with a coating layer so as to be 50% or more. From the viewpoint of further reducing the development residue, the average coverage is more preferably 80 to 100%.
- the average coverage of the black pigment can be calculated by the following procedure.
- the embedding resin a two-component room temperature curing type transparent acrylic transparent resin (manufactured by Heraeus Kulzer, Inc .; Techovit 4006) was impregnated with a black pigment, and the resin was cured by reaction, and the black pigment was embedded in the embedding resin.
- the embedding resin may be easily injected to promote the impregnation. The larger the secondary agglomerated particle size of the black pigment, the more useful the use of the autoclave apparatus.
- the observation sample preparation method is not limited to the above-described method, and an optimum preparation method can be appropriately selected in consideration of the impregnation property with respect to the organic black pigment and the time until the embedded resin loses fluidity.
- Other specific examples include, for example, a thermosetting resin automatic embedding apparatus (“MECAPRESS” (registered trademark) manufactured by PRESI) that can use thermosetting acrylic resin or thermosetting epoxy resin as the embedding resin,
- MECAPRESS thermosetting resin automatic embedding apparatus
- An example is a method in which a foaming device (“Poly'Vac” (registered trademark) manufactured by PRESI) is combined.
- the observation sample is roughly mechanically polished using diamond polishing paper, and then a smooth cross section is formed on a part of the observation sample by argon ion beam polishing using an ion milling device (manufactured by Hitachi High-Technologies Corporation; IM4000).
- an ion milling device manufactured by Hitachi High-Technologies Corporation; IM4000.
- the display is enlarged so that the cross section can be observed at a magnification of 100,000 times under the condition of an acceleration voltage of 300 kV, and the outer periphery of the nucleus can be recognized as a contrast difference.
- the cross section is obtained by adjusting the brightness and contrast.
- the average coverage N (%) can be determined by calculating the coverage M (%) of each black pigment by the following formula and calculating the number average value thereof.
- Coverage ratio M (%) ⁇ L1 / (L1 + L2) ⁇ ⁇ 100
- L1 The total length (nm) of the part of the outer periphery of the nucleus where the nucleus is covered with the coating layer
- L2 Total length (nm) of the portion of the outer periphery of the nucleus where the nucleus is exposed (the portion where the interface and the embedded resin are in direct contact)
- L1 + L2 outer peripheral length (nm) of the nucleus.
- the form of the coating layer is not particularly limited as long as it functions as a layer that protects the nucleus and contributes to improvement in alkali resistance, or functions as a layer that contributes to improvement in dispersibility. Examples thereof include those obtained by depositing a fine coating material on the surface of the core to form a layer, a uniform film, and a mixture of both forms.
- the alkali resistance refers to resistance to an organic alkaline aqueous solution at 25 ° C. under atmospheric pressure.
- an inorganic alkali such as 1 to 10% by weight sodium hydroxide aqueous solution or 1 to 10% by weight sodium carbonate aqueous solution can be used as an indicator of the alkali resistance of a pigment or a film containing a pigment.
- resistance to an aqueous solution is referred to, but in this specification, resistance to an organic alkaline aqueous solution suitable for forming a pixel division layer is used as an evaluation criterion.
- the degree of dissolution and / or decomposition that occurs when a pigment comes into contact with an aqueous alkaline solution does not necessarily depend only on the level of the pH value. Low tolerance.
- the coating layer is preferably dense with less voids.
- the black pigment is dispersed in the pigment.
- the shape of the particulate coating material include a spherical shape and an amorphous shape.
- the average primary particle diameter of the particulate coating material is preferably less than 10 nm and more preferably less than 5 nm from the viewpoint of suppressing irregular reflection and maintaining the jetness inherent to the organic black pigment contained in the core.
- the fine particles are not spherical, the average value of the long diameter and the short diameter is taken as the primary particle diameter.
- a locally supported coating material is also regarded as a component contained in the coating layer constituting the black pigment of the present invention.
- the coating layer of the black pigment of the present invention may contain two or more kinds of silica, metal oxide and / or metal hydroxide.
- silica, metal oxide and / or metal hydroxide When the benzodifuranone-based black pigment is contained in the nucleus, silica, metal oxide and / or metal hydroxide have a function of protecting the nucleus and imparting alkali resistance, so that development residues can be suppressed.
- the core contains a perylene-based black pigment and / or an azo-based black pigment
- silica, metal oxide and / or metal hydroxide reduce wettability by reducing the high hydrophobicity and high cohesiveness inherent to the pigment.
- it By improving the affinity with the binder, it has the function of imparting dispersibility in the pigment dispersion, photosensitive composition, and dispersibility in the development step, which will be described later, thereby suppressing development residue be able to.
- the surface of the coating layer further has a hydroxyl group, and the dispersibility of the alkali-soluble resin in the photosensitive composition described later can be improved.
- the hydroxyl group on the surface of the coating layer include a hydroxyl group remaining on the solid surface in the process of depositing silica, metal oxide and / or metal hydroxide on the surface of the nucleus, and a hydroxyl group generated by modification of silica or metal oxide.
- a coating material having a surface hydroxyl group such as silica, alumina, aluminum hydroxide, zirconia, zirconium hydroxide, titanium oxide, etc. is located in the outermost layer of the coating layer.
- a hydroxyl group bonded to a silicon atom silica, alumina, aluminum hydroxide, zirconia, zirconium hydroxide, titanium oxide, etc.
- a hydroxyl group bonded to a silicon atom silica, alumina, aluminum hydroxide, zirconia, zirconium hydroxide, titanium oxide, etc.
- a hydroxyl group bonded to a silicon atom silica, alumina, aluminum hydroxide, zirconia, zirconium hydroxide, titanium oxide, etc.
- titanium oxide titanium oxide
- the coating material preferably contains silica. Since silica has a low dielectric constant, an increase in the dielectric constant of the pixel division layer can be suppressed even when the coating amount is large.
- Silica, metal oxide and / or metal hydroxide contained in the coating layer can be analyzed by X-ray diffraction.
- the X-ray diffractometer include a powder X-ray diffractometer manufactured by Mac Science.
- the weight of silicon or metal in silica, metal oxide, or metal hydroxide is determined by rounding off the first decimal place to the first decimal place.
- the weight of the core in the black pigment is determined by placing the black pigment whose weight has been measured in a mortar, grinding it with a pestle to peel off the coating layer, and then immersing it in an amide solvent such as dimethylformamide or N-methylpyrrolidone.
- the weight of the filtrate is measured after repeating the process until the filtrate completely loses its blackness, and can be determined from the difference from the weight of the black pigment.
- the dissolution of the nucleus may be performed by appropriately heating the solvent as necessary.
- the weight reduction rate of the black pigment of the present invention is saturated in the presence of air at a temperature higher than the temperature at which the core is volatilized by thermal decomposition using a small electric firing furnace. The sum of the weight of the residue after heating until the time of heating and the weight reduced after heating for 30 minutes at 150 ° C. for dehydration can be regarded as the weight of the coating layer.
- the organic black pigment can be volatilized and sufficiently removed by setting the furnace temperature of the small firing furnace to an actual temperature of 700 to 800 ° C.
- non-destructive multi-element simultaneous measurement is possible. Therefore, energy dispersive X-ray analysis using fluorescent X-rays, wavelength dispersive X Line analysis is useful.
- the silica in the present invention is a general term for silicon dioxide and its hydrated product.
- silica refers to silica (SiO 2 ) and silica hydrate (SiO 2 .nH 2 O).
- the metal oxide in the present invention is a general term for metal oxides and hydrates thereof.
- Alumina exemplified as a metal oxide refers to alumina (Al 2 O 3 ) and alumina hydrate (Al 2 O 3 .nH 2 O).
- examples of the metal hydroxide include aluminum hydroxide (Al (OH) 3 ).
- Silica, metal oxide, and metal hydroxide may be non-crystalline or crystalline, and in the case of being crystalline, the crystal form is not particularly limited.
- Metal oxides and metal hydroxides include chemical durability such as alkali resistance, heat resistance and light resistance, and Vickers hardness and wear resistance that can withstand mechanical energy input that is appropriately optimized in the dispersion process. Those having physical durability are preferred.
- alumina, zirconia, zinc oxide, titanium oxide, iron oxide, aluminum hydroxide and the like may be mentioned, and two or more of these may be included.
- alumina and zirconia are preferable from the viewpoint of insulation, ultraviolet transmittance, and near infrared transmittance, and alumina is more preferable from the viewpoint of dispersibility in alkali-soluble resins and solvents.
- the metal oxide and the metal hydroxide may be surface-modified with a group containing an organic group.
- Silica, metal oxide and / or metal hydroxide may contain crystal water.
- crystallization water in the pigment dispersion and / or the photosensitive composition, depending on the dispersion medium, it is possible to suppress hard cake-like pigment precipitates that are generated over time after dispersion by the wet media dispersion treatment. There is a case.
- part or all of the crystal water may be dehydrated by heating.
- the coating layer containing silica, metal oxide and / or metal hydroxide may have a form in which one or more silicon atoms, oxides or hydroxides of single metal atoms are deposited on the surface of the nucleus.
- a composite oxide in which silicon and one or more kinds of metals or a plurality of kinds of metals are chemically bonded through oxygen atoms may be deposited on the surface of the nucleus.
- the composite oxide include silica-alumina composite oxide, silica-zirconia composite oxide, silica-alumina-zirconia, and alumina-zirconia composite oxide.
- the linearity of the pattern tends to decrease as the coating amount increases or the black pigment concentration in the pixel division layer increases due to the surface roughness of the silica itself. In some cases, this can be suppressed by forming an alumina coating layer on the surface of the silica layer covering the core.
- Alumina has a special effect in improving the dispersibility in the aqueous pigment suspension even in the black pigment sizing step performed after the surface treatment step when producing the black pigment of the present invention. Can be easily adjusted to a desired range, and productivity and quality stability can be further improved.
- the coating amount of alumina is preferably 10.0 parts by weight or more, and more preferably 20.0 parts by weight or more with respect to 100 parts by weight of silica.
- the silica content in the coating layer is preferably 1.0 to 20.0 parts by weight with respect to 100 parts by weight of the core.
- the content of silica refers to the technical common sense of those skilled in the art in consideration of the case where the inner layer and the surface layer in the coating layer do not become a single component or the case where the degree of dehydration varies due to thermal history. According to the above, it is expressed in a unified manner in terms of SiO 2 calculated from the Si content.
- the total content of the metal oxide and the metal hydroxide in the coating layer is 0.1 to 15.0 weight with respect to 100 parts by weight of the core Part is preferred.
- the total content of the metal oxide and the metal hydroxide refers to the content when only one of the metal oxide or the metal hydroxide is contained, and the total content when both are contained. Point to.
- the total content of the metal oxide and the metal hydroxide is preferably 2.0 parts by weight or more, and more preferably 5.0 parts by weight or more.
- the total content of metal oxide and metal hydroxide is usually designed to have a low viscosity of 15 mPa ⁇ s or less from the viewpoint of film thickness uniformity after coating.
- the photosensitive composition for forming a pixel division layer the occurrence of a pigment concentration gradient can be suppressed, and the storage stability can be improved. 10.0 parts by weight or less is more preferable.
- the contents of the metal oxide and the metal hydroxide are expressed in a unified manner in terms of oxides calculated from the metal content according to the technical common sense of those skilled in the art, as in the case of silica. That is, for example, aluminum oxide and hydrates of aluminum oxide are collectively described as alumina regardless of the presence or amount of water of crystallization due to their thermal history, and the contents of alumina and aluminum hydroxide are further indicated. Regardless of the presence or amount of crystallization water due to their thermal history, they are uniformly expressed in terms of Al 2 O 3 . Similarly, in the case of zirconia and titanium oxide, they are expressed in terms of ZrO 2 and TiO 2 , respectively.
- the black pigment of the present invention is coated with an organic group using an organosilicon compound (silane coupling agent) with the hydroxyl group on the surface of silica, metal oxide and / or metal hydroxide contained in the coating layer as a reactive site.
- the layer may be surface modified.
- the surface treatment is performed with an organosilicon compound having a radical polymerizable group and a silicon atom to give the black pigment photocrosslinkability.
- the bond at the interface between the black pigment / binder can be made stronger by photocuring with a compound having two or more radically polymerizable groups contained in the negative photosensitive composition.
- organosilicon compound having a radical polymerizable group and a silicon atom examples include vinyltrimethoxysilane, vinyltriethoxysilane, styryltrimethoxysilane, 3-methacryloxypropylmethyldimethoxysilane, and 3-methacryloxypropyltrimethoxysilane. , 3-acryloxypropyltrimethoxysilane and the like. Two or more of these may be used.
- methyltrimethoxysilane, methyltriethoxysilane, phenyltrimethoxysilane, phenyltriethoxysilane, dimethyldimethoxysilane are selected as necessary.
- the surface treatment is performed using an organosilicon compound having no radical polymerizable group such as dimethoxydiphenylsilane, and the wettability to the dispersion medium is improved by controlling the polarity of the surface of the black pigment of the present invention. Also good.
- the outermost layer of the black pigment of the present invention may be further treated with an organic surface treatment agent for the purpose of improving the wettability with respect to a dispersant or a solvent in preparing the pigment dispersion.
- an organic surface treatment agent those that can be easily removed from the pixel dividing layer by heat in the curing process described below are preferable, and examples thereof include trimethylolethane, trimethylolpropane, triethanolamine, and derivatives thereof. Two or more of these may be used.
- the benzodifuranone-based black pigment forming the nucleus of the black pigment of the present invention can be obtained by a cyclization reaction of 2,5-dihydrobenzene-1,4-diacetic acid and isatins in an acidic catalyst.
- 2,5-dihydroxybenzene-1,4-diacetic acid and isatin and / or an isatin derivative are mixed at a molar ratio of 1: 2, respectively, and p-toluenesulfonic acid monoester is used as a catalyst.
- reaction mixture Hydrate is added and stirred in a mixed solvent of concentrated acetic acid and water to obtain a reaction mixture, which is heated to reflux temperature and stirred for over 20 hours. The reaction mixture is then further stirred without heating until the liquid temperature drops to 90 ° C. After natural cooling to a temperature of 20-30 ° C., the mixture is filtered and the filtrate is washed with cold concentrated acetic acid and then with methanol to give the reaction.
- Benzodifuranone-based black pigment having various groups represented by R 1 to R 10 in the general formulas (1) and / or (2) by using isatin or an isatin derivative having a desired substituent as a starting material Can be obtained.
- a commercial item may be used for the benzodifuranone pigment represented by Formula (3), for example, "Irgaphor” (trademark) Black S0100 by BASF Corporation is mentioned.
- the (a) perylene black pigment forming the nucleus of the black pigment of the present invention is obtained, for example, by a cyclization reaction between perylene-3,4,9,10-tetracarboxylic dianhydride and o-diamines. be able to. Specifically, for example, perylene-3,4,9,10-tetracarboxylic dianhydride and o-diamine are added in a molar ratio of 1: 2 to phenol melted at 70 ° C., for example.
- the mixture to which a catalyst such as p-toluenesulfonic acid or piperazine was added was heated to 170 to 190 ° C, and the mixture was stirred for 6 to 10 hours while maintaining 170 to 190 ° C.
- the amino group is bonded to form an imide
- the other amino group is further bonded to allow the cyclization reaction to proceed sufficiently, and then the produced water is distilled and separated as an azeotrope with phenol.
- the mixture was cooled to 130 ° C., methanol was added, and the mixture was stirred at 50 to 70 ° C. for 1 hour, and then the reaction product was filtered off.
- a pigment crude Further, a perylene-based black pigment is obtained by dry pulverization using a ball mill or the like, and if necessary, wet pulverization treatment by a solvent salt milling method or the like to adjust the particle size.
- R 13 to R 20 in the general formulas (4) and / or (5) Perylene-based black pigments having various groups represented can be obtained.
- the (a) azo black pigment contained in the nucleus of the black pigment of the present invention comprises a diazo compound obtained by diazotizing a monoamine and a compound having an 11H-benzo [a] carbazole structure in a molar ratio of 1: 1, It can be obtained by an azo coupling reaction. Specifically, for example, monoamines having an isoindolinone structure or monoamines having an isoindoline structure are added to nitrobenzene or o-dichlorobenzene, and hydrochloric acid is added to form a hydrochloride, followed by sodium nitrite. An aqueous solution is added for diazotization to prepare a diazonium salt solution.
- a compound having 11H-benzo [a] carbazole structure and sodium hydroxide are dissolved in methanol to prepare a coupling solution.
- a coupling solution is gradually added to the diazonium salt solution maintained at a liquid temperature of 10 to 20 ° C., and the pH is adjusted to 6 to 8 using sodium acetate.
- the heating temperature and stirring for 3 hours or more, the azo coupling reaction is completed and a reaction product is obtained.
- the reaction product is filtered off, washed with methanol until the filtrate becomes transparent, washed with water, and dried at 40 ° C. under reduced pressure for 24 hours or more.
- an azo black pigment having various groups represented by X and (Y) n in formula (8) can be obtained.
- Examples of the method for forming the coating layer on the surface of the core include a method of coating silica, metal oxide and / or metal hydroxide by a precipitation method using an alkali metal salt as a silicon source and / or a metal element source, A method of coating a metal oxide and / or metal hydroxide by a hydrolysis method using a functional metal compound as a metal element source, silica by a sol-gel method using a tetrafunctional metal alkoxide as a silicon source and / or metal element source, Examples thereof include a method of coating a metal oxide and / or a metal hydroxide, and a method of coating silica by a polysilazane method using perhydropolysilazane as a silicon source.
- the precipitation method, the hydrolysis method, and the sol-gel method are preferred because the reaction is easily controlled and the productivity is high, the alkali resistance is high, and a coating layer that has both hardness and dispersibility can be easily obtained.
- a precipitation method is more preferred.
- the temporal index of alkali resistance to be improved by the formation of the coating layer is determined in the developing step described later. The time is preferably 1.5 times or more, more preferably 2 times or more, based on an appropriately set development time.
- the coating layer is the time index by various production methods described later. It is preferable to form so as to satisfy.
- the degassing amount of the black pigment of the present invention obtained by various production methods is preferably 200 ° C. or higher, more preferably 250 ° C. or higher, from the viewpoint of improving the heat resistance required for the pixel dividing layer. The smaller the number, the better.
- a method for producing a black pigment using a precipitation method a method including at least the following steps (a) to (b) is preferable, and a method including steps (c) to (f) is more preferable.
- the steps (a) to (f) are preferably included in this order.
- At least one filtration and washing are performed to remove water-soluble components. , Washing step (d) again into an aqueous pigment suspension and pulverized to bring the secondary aggregated particle size into a desired range, granulating step (e) removing ionic impurities, ion trapping step (f) aqueous pigment A separation step of separating the black pigment from the suspension.
- the core containing the organic black pigment is put into a dispersion medium containing at least water so as to have a solid content of 1 to 20% by weight, stirred to deagglomerate, and an aqueous pigment suspension Is preferably obtained.
- the aqueous pigment suspension here refers to a water-containing slurry having a water content of 10 to 100% by weight among components other than the solid content, and is necessary in consideration of the wettability of the core surface. Accordingly, an organic solvent may be used in combination as a part of the dispersion medium.
- organic solvents such as alcohol, glycols, ethers, are preferred, for example.
- the stirring device include a blade-type stirring device such as a homodisper and a dissolver.
- a nonionic surfactant Nuclei are refined by a method of adding a trace amount of less than 1 part by weight with respect to 100 parts by weight of the nuclei and wet media dispersion processing using a bead mill disperser filled with ceramic beads. The deagglomeration can be further promoted by the method of performing the process.
- nonionic surfactant for example, surfactants such as polyoxyethylene alkyl ether, polyoxyethylene lauryl ether, and polyethylene glycol can be used.
- the black pigment of the present invention is used as a pixel dividing layer of an organic EL display. When used, it is desirable to reduce the addition amount as much as possible in order to increase the heat resistance of the black pigment of the present invention.
- pretreatment is performed using a wet media disperser, the pigment particles become finer as the deagglomeration progresses, and reaggregation easily proceeds with an increase in surface energy. It is preferable to set the tact between the processes so that the time until the start of the (b) surface treatment process is as short as possible.
- the deagglomerated state of the nucleus only needs to be temporarily maintained at least after (a) the preparation step and until the later-described (b) surface treatment step is completed.
- the aqueous pigment prepared in the (a) preparation step is not necessarily required. There is no need to allow the suspension to remain highly dispersed and stable. In order to suppress local high and low pH in the (b) surface treatment step described later, it is preferable to prepare the aqueous suspension after the preparation so that the viscosity is 20 mPa ⁇ s or less.
- the aqueous pigment suspension containing the nucleus obtained in the preparation step (a) maintains the pH in the range of 2 or more and less than 7, while maintaining the alkali metal salt, the inorganic acid, Is added to coat the surface of the core with a coating material containing silica, metal oxide and / or metal hydroxide.
- a method for adding the alkali metal salt and the inorganic acid it is preferable to add them in parallel at the same time by adjusting the rate of addition of both so that the desired pH range can be maintained. By adjusting the addition amount, the coating amount can be adjusted to a desired range.
- each may be added by being discharged from a plurality of locations so that a more uniform coverage can be obtained.
- the organic black pigment is superior in near-infrared transmittance as compared with inorganic black pigments such as carbon black and titanium black, and the photosensitive composition described below containing the black pigment has a near-infrared irradiation device and a near-infrared ray in the exposure process described below. Since the position of the exposure mask with respect to the substrate can be adjusted using a camera, that is, near-infrared alignment can be performed with high accuracy, the productivity of the organic EL display can be improved.
- the photosensitive composition containing the black pigment of the present invention can perform near infrared alignment with high accuracy.
- silica when silica is coated as a coating material, it is preferable to use an alkali metal silicate which is a silicon source as the alkali metal salt.
- an alkali metal silicate sodium silicate, potassium silicate, etc. can be used, for example.
- sodium silicate what is generally marketed as an aqueous solution under the common name of water glass may be used.
- the inorganic acid for example, a mineral acid such as sulfuric acid or hydrochloric acid, or phosphoric acid can be used.
- an alkali metal aluminate that is an aluminum source As the alkali metal salt, aluminum hydroxide is precipitated on the surface of the core, and the aluminum hydroxide is converted to alumina by dissociating crystal water by heat treatment at 200 ° C. or more, Can be formed.
- the alkali metal aluminate for example, sodium aluminate, potassium aluminate or the like can be used.
- an inorganic acid what was illustrated as an inorganic acid used when coat
- alkali metal silicate and alkali metal aluminate as the alkali metal salt.
- the pH of the aqueous pigment suspension is preferably maintained in the range of 2 or more and less than 7 from the start to the end.
- the pH of the aqueous pigment suspension By setting the pH of the aqueous pigment suspension to 2 or more, re-aggregation of nuclei once deagglomerated can be suppressed and formation of the coating layer can be promoted.
- the pH of the aqueous pigment suspension is more preferably less than 6.
- the pH of the aqueous pigment suspension can be measured with a pH meter.
- the maximum value and the minimum value of the pH value continuously indicated for 10 seconds or more by the pH meter are within the above range.
- the liquid temperature of the aqueous pigment suspension in the (b) surface treatment step is preferably 40 to 80 ° C.
- a water-soluble polymer may be added as a stabilizing aid as necessary in order to suppress reaggregation in the middle of the surface treatment process.
- the addition amount of the water-soluble polymer is preferably less than 1 part by weight with respect to 100 parts by weight of the core.
- the water-soluble polymer is preferably one that can be removed in the washing step (c) described later, and examples thereof include polyacrylic acid, sodium polyacrylate, a copolymer of acrylic acid and maleic acid, and methylcellulose.
- the black pigment of the invention is used in the pixel division layer of an organic EL display, it is desirable to reduce the amount of the water-soluble polymer added as much as possible in order to increase the heat resistance of the black pigment.
- surface treatment may be performed.
- (C) In the washing step, the operation of increasing the solid content concentration of the aqueous pigment suspension to 30% by weight or more using a pressure filter or a centrifugal separator to make a cake and then adding water again is repeated. It is preferable that sodium ions, potassium ions, sulfate ions, chlorine ions, water-soluble impurities, and the like derived from alkali metal salts can be removed.
- the aqueous pigment suspension is made again and pulverized by wet media dispersion using a ball mill or bead mill filled with ceramic beads to bring the secondary aggregated particle diameter to a desired range.
- the solid content concentration of the aqueous pigment suspension is preferably 1 to 20% by weight.
- the water used for the suspension is preferably deionized water.
- (E) In the ion trap step, it is preferable to add an ion exchange resin to the sized aqueous pigment suspension and stir to adsorb and remove ionic impurities to the ion exchange resin.
- an ion exchange resin By performing the ion exchange treatment in a wet state in the state of the aqueous pigment suspension, the adsorption ability of the ion exchange resin for the ionic impurities can be enhanced.
- the ion exchange resin include “Diaion” (registered trademark) (manufactured by Mitsubishi Chemical Corporation), “Amberlite” (registered trademark) (manufactured by Organo Corporation), and the like.
- the stirring time is preferably 6 hours or more.
- the electrical conductivity is preferably treated to 500 ⁇ S / cm or less, and more preferably 200 ⁇ S / cm or less.
- the content of the ionic impurities can be qualitatively and quantitatively determined by (P) ICP-MS analysis of the baked ash or ion chromatography of the aqueous solution using the black pigment after the separation step as a sample.
- the aqueous pigment suspension is filtered, and the residue is dried and dehydrated in a drying oven at an actual temperature of 80 to 150 ° C. for 6 hours or more.
- sizing may be performed by dry pulverization, sieving, classification, or the like.
- a ball mill is preferable from the viewpoint of productivity.
- a secondary agglomerated particle diameter can be controlled within a smaller particle diameter range without excessively applying mechanical energy.
- the airflow type / swivel type pulverizer is preferable, and dry pulverization may be performed in multiple stages by using both of these processes in combination.
- the surface treatment may be performed while spraying the vaporized or atomized organic surface treatment agent into the mill and performing dry pulverization.
- low-boiling organic components such as adsorbed water, crystallization water, surfactant and / or water-soluble polymer contained in the coating layer may be volatilized by heat treatment according to the components contained in the coating layer.
- the heating temperature during the heat treatment is preferably 180 ° C. or higher, more preferably 200 ° C. or higher.
- the temperature is preferably 350 ° C. or lower, and more preferably 300 ° C. or lower.
- the heating time is preferably 10 minutes or more, more preferably 30 minutes or more.
- the time is preferably 3 hours or less.
- An example of the heating device is a drying oven.
- a method for producing a black pigment using a hydrolysis method a method including at least the following steps (a) to (b) is preferable, and a method including steps (c) to (f) is more preferable.
- the steps (a) to (f) are preferably included in this order.
- a surface treatment step (c) for covering the surface of the core with a coating material containing a metal oxide and / or a metal hydroxide (c) at least one filtration and water washing to remove water-soluble components, and a washing step (d)
- the aqueous pigment suspension is made again and pulverized to make the secondary aggregated particle diameter within a desired range.
- the granulating step (e) The ionic impurities are removed.
- the ion trap step (f) The aqueous pigment suspension is blackened. Separation process for separating the pigment.
- the preparation step, (c) the washing step, (d) the sizing step, (e) the ion trap step, and (f) the separation step can be performed in the same manner as the above-described precipitation method.
- the (b) surface treatment step of the hydrolysis method is performed in the same manner as the precipitation method, except that a water-soluble metal compound is used instead of the alkali metal salt and inorganic acid in the (b) surface treatment step of the precipitation method described above. be able to.
- zirconium oxychloride ZrOCl 2 .8H 2 O which is a zirconium source
- titanium oxide when coating titanium oxide, it is preferable to use a water-soluble titanium compound such as titanyl sulfate or titanium tetrachloride which is a titanium source as the water-soluble metal compound. Since reaction control is easy and the process is not complicated, a titanyl sulfate aqueous solution is more preferable.
- TiOSO 4 titanyl sulfate
- the acid by-produced in the surface treatment step by the hydrolysis method can be neutralized with an alkaline component such as ammonia water, for example.
- a method for producing a black pigment using the sol-gel method a method including at least the following steps (a) to (b) is preferable, and a method including the steps (c) to (f) is more preferable.
- the steps (a) to (f) are preferably included in this order.
- the surface treatment step (c) for covering the surface of the core with a coating material containing silica, metal oxide and / or metal hydroxide (c) at least one filtration and water washing to remove water-soluble components, washing Step (d) Aqueous pigment suspension is again formed and pulverized to bring the secondary agglomerated particle size to a desired range.
- Sizing step (e) Ion trapping step (f) Aqueous pigment suspension A separation step of separating the black pigment from the liquid.
- the preparation step, (c) the washing step, (d) the sizing step, (e) the ion trap step, and (f) the separation step can be performed in the same manner as the above-described precipitation method.
- the (b) surface treatment step of the sol-gel method is performed in the same manner as the precipitation method, except that a tetrafunctional metal alkoxide is used instead of the alkali metal salt and the inorganic acid in the (b) surface treatment step of the precipitation method described above. be able to.
- a tetrafunctional silane alkoxide when silica is coated, a tetrafunctional silane alkoxide can be used as a silicon source, and when zirconia is coated, a tetrafunctional zirconium alkoxide can be used as a zirconium source and titanium oxide is coated.
- the tetrafunctional silane alkoxide that can be preferably used include tetramethoxysilane and tetraethoxysilane.
- the tetrafunctional zirconium alkoxide examples include tetra (n-butoxy) zirconium and tetra (tert-butoxy) zirconium.
- the tetrafunctional titanium alkoxide include tetramethoxy titanium, tetraethoxy titanium, tetra (n-butoxy) titanium, and tetra (tert-butoxy) titanium.
- a tetrafunctional metal alkoxide is added to the aqueous pigment suspension obtained in the preparation step, hydrolyzed at a liquid temperature of 30 to 80 ° C., and then heated to a liquid temperature of 90 to 150 ° C.
- the dehydration condensation reaction proceeds.
- a sol derived from a tetrafunctional metal alkoxide can be deposited on the surface of the nucleus, and silica, metal oxide, or metal hydroxide can be deposited to form a coating layer.
- An acid catalyst or a base catalyst may be used to allow the hydrolysis to proceed sufficiently. The use of a catalyst is particularly useful when a tetrafunctional silane alkoxide is used as the silicon source.
- an acid catalyst is preferable because the catalyst can be easily removed in the ion trap step (e) which is a subsequent step.
- a weak acid such as phosphoric acid or acetic acid as the acid catalyst because the dehydration condensation reaction can proceed at an appropriate reaction rate to suppress the formation of a gelled product that is not involved in the coating on the nucleus. it can.
- the average coverage is improved without excessively increasing the coating amount.
- only the (b) surface treatment step may be performed a plurality of times. Specific examples include (b-1) a first surface treatment step, (b-2) a deagglomeration step by wet media dispersion treatment, and (b-3) a second surface treatment step in this order. .
- (B-1) By passing through the first surface treatment step, a certain amount of the coating material is coated, at least a part of the pigment surface is hydrophilized, and self-diffusibility in the aqueous dispersion medium is improved.
- (B-2) In the deaggregation process by the wet media dispersion treatment, deagglomeration is likely to proceed, and subsequent reaggregation is difficult to proceed.
- the contribution to the average coverage per coating amount may be increased. This tendency is attributed to the fact that the wettability of the coating layer containing silica, metal oxide, and metal hydroxide to the aqueous medium is higher than the wettability of the core to the aqueous medium.
- the method of performing a plurality of times is particularly effective when a coating material is coated on the surface of a nucleus containing a perylene-based black pigment. Further, the number of times of performing the surface treatment step is preferably 3 times or less, more preferably 2 times or less from the viewpoint of productivity.
- the pigment dispersion of the present invention contains the aforementioned black pigment, dispersant and solvent.
- the dispersant means a substance having both a pigment affinity group having a chemical bond or adsorption action on the surface of the black pigment and a polymer chain or group having a solvophilic property.
- a pigment affinity group having a chemical bond or adsorption action on the surface of the black pigment and a polymer chain or group having a solvophilic property.
- hydrogen bond in addition to acid-base interaction, hydrogen bond, Van-der-Walls force, etc. are involved in combination, and in wet media dispersion treatment performed when preparing a pigment dispersion, By enhancing the steric repulsion effect, the effect of promoting the deagglomeration of the black pigment is achieved.
- the dispersant in the present invention the viscosity of the pigment dispersion is lowered, the reaggregation of the black pigment that occurs with time is suppressed, and the dispersion stability is improved.
- the dispersion stability of the pigment dispersion influences the storage stability of a photosensitive composition described later produced using the pigment dispersion, and affects the developability when forming the pixel dividing layer.
- various components are added to the pigment dispersion, so that the equilibrium state between the desorption and resorption of the dispersant on the pigment surface is inclined toward the desorption side, and the resulting photosensitive layer is obtained.
- the dispersed state in the adhesive composition collapses and the viscosity increases with time.
- the pigment dispersion of the present invention not only has a high storage stability of the pigment dispersion, but also has a very high storage stability when used as a photosensitive composition, so that the development residue can be improved. it can.
- the alkali-soluble resin means a resin having a carboxyl group and / or a hydroxyl group as an alkali-soluble group in the structure.
- the dispersion stability of the black pigment in the pigment dispersion can be further improved.
- the black pigment of this invention has a hydroxyl group on the surface
- dispersion stability can be improved more by formation of the hydrogen bond with the carboxyl group and / or hydroxyl group which alkali-soluble resin has.
- it has solubility in an alkali developer, and is unexposed in photolithography using a negative (or positive) photosensitive composition described later containing the same. The portion (or the exposed portion) can be selectively removed, and the pixel division layer can be patterned.
- the acid value of the alkali-soluble resin is preferably 10 mgKOH / g or more.
- the acid value is preferably 300 mgKOH / g or less from the viewpoint of suppressing the peeling of the pattern edge of the pixel division layer in the development step described later.
- alkali-soluble resin examples include alkali-soluble polyimide resin, alkali-soluble polyimide precursor, alkali-soluble polybenzoxazole resin, alkali-soluble polybenzoxazole precursor, alkali-soluble cardo resin, alkali-soluble acrylic resin, alkali-soluble polysiloxane resin, Examples include alkali-soluble novolak resins and alkali-soluble urethane resins. Two or more of these may be contained. Among these, it is preferable to contain an alkali-soluble polyimide resin from the viewpoint of heat resistance.
- the polymer resin dispersant having a basic adsorbing group is preferably a polymer resin dispersant having a tertiary amino group and / or a quaternary ammonium base or a heterocyclic structure as the basic adsorbing group. It is possible to further improve the dispersion stability of the black pigment in the pigment dispersion by adsorbing the basic adsorption group of the polymer resin dispersant.
- the polymer resin dispersant having a basic adsorbing group a commercially available product may be used.
- DisperBYK-142, 145, 164, 167, 2001, 2008, 2009, 2010, 2020, 2025, 9076, 9077, BYK-LP N6919, BYK-LP N21116 all of which are manufactured by Big Chemie
- Solsperse registered trademark 9000, 11200, 13650, 20000, 24000, 24000SC, 24000GR, 32000, 32500, 32550, 326000, 33000, 34750, 35100, 35200, 37500, 39000, 56000 (all are manufactured by Lubrizol), Efka-PX4310, 4320 (all are manufactured by BASF) and the like. That. Two or more of these may be contained.
- the content of the alkali-soluble resin is 20 parts by weight or more with respect to 100 parts by weight of the black pigment in order to further improve the dispersion stability.
- the content of the alkali-soluble resin is preferably 200 parts by weight or less and more preferably 150 parts by weight or less with respect to 100 parts by weight of the black pigment from the viewpoint of suppressing reaggregation due to overdispersion.
- the content of the polymer resin dispersant having a basic adsorbing group further improves the dispersion stability.
- 10 weight part or more is preferable with respect to 100 weight part of black pigments, and 20 weight part or more is more preferable.
- the content of the dispersant having a basic adsorbing group is preferably 100 parts by weight or less, more preferably 60 parts by weight or less, with respect to 100 parts by weight of the black pigment, from the viewpoint of suppressing reaggregation due to overdispersion.
- Examples of the solvent include ethers, acetates, esters, ketones, aromatic hydrocarbons, alcohols and the like. Two or more of these may be contained.
- Examples of ethers include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol mono-n-propyl ether, ethylene glycol mono-n-butyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propyl.
- Ether diethylene glycol mono-n-butyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol mono-n-propyl ether, propylene glycol mono-n-butyl ether, Dipropylene glycol monomethyl ether Dipropylene glycol monoethyl ether, dipropylene glycol mono-n-propyl ether, dipropylene glycol mono-n-butyl ether, dipropylene glycol dimethyl ether, dipropylene glycol methyl-n-butyl ether, tripropylene glycol monomethyl ether, tripropylene glycol mono Examples include ethyl ether, diethylene glycol dimethyl ether, diethylene glycol methyl ethyl ether, diethylene glycol diethyl ether, and tetrahydrofuran.
- acetates examples include butyl acetate, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, propylene glycol monomethyl ether acetate, 3-methoxybutyl acetate, ethylene glycol monobutyl ether acetate, diethylene glycol monomethyl ether acetate, diethylene glycol monoethyl ether.
- PGMEA propylene glycol monomethyl ether acetate
- esters examples include alkyl lactates such as methyl 2-hydroxypropionate and ethyl 2-hydroxypropionate, ethyl 2-hydroxy-2-methylpropionate, methyl 3-methoxypropionate, and 3-methoxypropionic acid.
- ketones include methyl ethyl ketone, cyclohexanone, 2-heptanone, and 3-heptanone.
- aromatic hydrocarbons include toluene and xylene.
- alcohols include isopropyl alcohol, butyl alcohol, isobutyl alcohol, pentanol, 4-methyl-2-pentanol, 3-methyl-2-butanol, 3-methyl-3-methoxybutanol, diacetone alcohol, etc. Is mentioned.
- the content of the solvent in 100 parts by weight of the pigment dispersion is preferably 50 parts by weight or more, and more preferably 70 parts by weight or more from the viewpoint of suppressing the thickening over time after the pigment dispersion is produced.
- the content of the solvent in 100 parts by weight of the pigment dispersion is preferably 95 parts by weight or less, and more preferably 90 parts by weight or less, from the viewpoint of suppressing the precipitation of the pigment after the pigment dispersion is produced.
- the average dispersed particle size of the black pigment in the pigment dispersion of the present invention is 50 nm or more from the viewpoint of mixing with a compound having a radical polymerizable group when preparing the photosensitive composition and stability against temperature change. preferable. On the other hand, 200 nm or less is preferable from the viewpoint of improving the pattern linearity of the pixel division layer.
- the average dispersed particle size refers to the number average value of the particle size of the black pigment, and can be measured using a particle size distribution measuring device.
- a dynamic light scattering particle size distribution measuring device “SZ-100 (manufactured by HORIBA)” or a laser diffraction / scattering particle size distribution measuring device “MT-3000 (manufactured by Microtrac)” can be used.
- the pigment dispersion of the present invention can be obtained by mixing the black pigment, the dispersant, the solvent and other components as necessary, and dispersing the black pigment. It is preferable to disperse by wet media dispersion treatment.
- the dispersing machine for performing the wet media dispersion treatment include a horizontal or vertical bead mill, a roll mill, and the like. Registered trademark) (manufactured by Inoue Seisakusho Co., Ltd.) and “sand grinder” (registered trademark) (manufactured by DuPont).
- media for filling the vessel of the disperser include zirconia beads, zircon beads, and alkali-free glass beads. It is preferred to use beads that do not contain.
- the bead diameter is preferably 0.03 to 5 mm, and the higher the sphericity, the more preferable.
- the operating conditions of the disperser can be appropriately set in consideration of the average primary particle diameter of the black pigment, the hardness of the coating layer, the hardness of the beads and the productivity. In general, since the cohesive strength of the coating layer containing silica, metal oxide and / or metal hydroxide is lower than that of organic black pigment, the black pigment of the present invention is dispersed in the pigment dispersion. Without increasing the blending amount of the agent, it is easy to proceed with refinement with less input energy, and the remaining coarse particles can be reduced.
- the photosensitive composition of the present invention contains the above-mentioned black pigment, an alkali-soluble resin, and a photosensitizer, and has either negative photosensitivity or positive photosensitivity. That is, the photosensitive composition of the present invention includes a negative photosensitive composition and a positive photosensitive composition.
- the content of the black pigment in the photosensitive composition of the present invention is preferably 5 parts by weight or more, more preferably 10 parts by weight or more, out of 100 parts by weight of the total solid content of the photosensitive composition, from the viewpoint of further improving the light shielding property. .
- the black pigment content contained in the photosensitive composition is 100 parts by weight based on the total solid content contained in the photosensitive composition in order to obtain sufficient sensitivity and developability for exposure. 50 parts by weight or less is preferable, and 40 parts by weight or less is more preferable.
- the black pigment is preferably included when the photosensitive composition is produced in the form of the pigment dispersion described above.
- the alkali-soluble resin in the photosensitive composition of the present invention is synonymous with the alkali-soluble resin contained in the pigment dispersion, and examples thereof include the resins exemplified as the alkali-soluble resin in the pigment dispersion.
- the acid value of the alkali-soluble resin is preferably 10 mgKOH / g or more.
- the acid value is preferably 300 (mgKOH / g) or less from the viewpoint of suppressing peeling of the pattern edge of the pixel division layer.
- an alkali-soluble polyimide resin, an alkali-soluble polyimide precursor, an alkali-soluble polybenzoxazole resin, an alkali-soluble poly A benzoxazole precursor and an alkali-soluble cardo resin are preferable.
- an alkali-soluble polyimide resin and an alkali-soluble cardo resin are more preferable, and a dispersibility viewpoint for the black pigment of the present invention. Therefore, an alkali-soluble polyimide resin having a structure represented by the following general formula (11) is more preferable.
- R 21 represents a tetravalent to 10-valent organic group.
- R 22 represents a divalent to octavalent organic group.
- R 23 and R 24 each independently represent a phenolic hydroxyl group, a sulfonic acid group, or a thiol group.
- p and q each independently represent a real number ranging from 0 to 6.
- R 21- (R 23 ) p represents an acid dianhydride residue.
- R 21 is preferably an organic group having 5 to 40 carbon atoms having an aromatic ring or a cyclic aliphatic group.
- Examples of the acid dianhydride include pyromellitic dianhydride, 3,3 ′, 4,4′-biphenyltetracarboxylic dianhydride, 3,3 ′, 4,4′-benzophenonetetracarboxylic dianhydride Bis (3,4-dicarboxyphenyl) sulfone dianhydride, bis (3,4-dicarboxyphenyl) ether dianhydride, 2,2-bis (3,4-dicarboxyphenyl) hexafluoropropane Tetracarboxylic dianhydrides having aromatic rings such as anhydrides, tetracarboxylic dianhydrides having aliphatic groups such as butanetetracarboxylic dianhydrides, 1,2,3,4-cyclopentanetetracarboxylic acid Cyclic fats such as dianhydrides, bicyclo [2.2.2] oct-7-ene-tetracarboxylic dianhydrides, bicyclo [2.2.2
- R 22- (R 24 ) q represents a diamine residue.
- R 22 is preferably an organic group having 5 to 40 carbon atoms having an aromatic ring or a cyclic aliphatic group.
- diamine examples include m-phenylenediamine, p-phenylenediamine, 1,4-bis (4-aminophenoxy) benzene, 1,3-bis (4-aminophenoxy) benzene, 1,3-bis (3- Aminophenoxy) benzene, bis [4- (4-aminophenoxy) phenyl] sulfone, bis [4- (4-aminophenoxy) phenyl] propane, bis [4- (4-aminophenoxy) phenyl] hexafluoropropane, bis [4- (3-aminophenoxy) phenyl] sulfone, 9,9-bis (4-aminophenyl) fluorene, diaminodiphenyl ether, diaminodiphenylsulfone, diaminodiphenylmethane, diaminodiphenylpropane, diaminodiphenylhexafluoropropane, di
- the alkali-soluble polyimide resin having the structure represented by the general formula (11) preferably has a carboxyl group, a phenolic hydroxyl group, a sulfonic acid group and / or a thiol group at the main chain end. It is possible to introduce these groups at the end of the main chain by sealing the end of the alkali-soluble polyimide resin with an end-capping agent having a carboxyl group, a phenolic hydroxyl group, a sulfonic acid group and / or a thiol group. it can.
- the terminal blocking agent include monoamines, acid anhydrides, monocarboxylic acids, monoacid chloride compounds, and monoactive ester compounds.
- the weight average molecular weight of the alkali-soluble polyimide resin is preferably 10,000 or more from the viewpoint of the hardness of the pixel dividing layer. On the other hand, from the viewpoint of solubility in an alkali developer, 100,000 or less is preferable.
- the alkali-soluble cardo resin means an alkali-soluble resin having a cardo skeleton, and the cardo skeleton is a quaternary carbon atom constituting a cyclic structure in which two aromatic groups are connected by a single bond. Refers to the skeleton.
- the cyclic structure herein include fluorene and 1-phenyl-2,3-dihydro-1H-indene.
- the aromatic group include a phenyl group.
- cardo skeleton examples include A skeleton in which two phenyl groups are connected to each other by a carbon-carbon single bond to the quaternary carbon atom located at the 9-position of the fluorene skeleton or the 3-position of the 1-phenyl-2,3-dihydro-1H-indene skeleton Is mentioned.
- the alkali-soluble cardo resin a commercially available product can be used. CR-TR3, CR-TR4, CR-TR5, CR-TR6 (all of which are manufactured by Osaka Gas Chemical Co., Ltd.).
- the weight average molecular weight of the alkali-soluble cardo resin is preferably 2,000 or more from the viewpoint of developability. On the other hand, 30,000 or less is preferable from the viewpoint of suppression of gelation when producing an alkali-soluble cardo resin.
- the weight average molecular weight (Mw) can be determined by analysis using gel permeation chromatography and conversion using a standard polystyrene calibration curve.
- the photosensitive composition of the present invention When the photosensitive composition of the present invention has negative photosensitivity, it preferably contains a compound having two or more radical polymerizable groups and a photopolymerization initiator as a photosensitive agent.
- a radical polymerization reaction is caused by exposure to photocuring, and the pixel division layer can be patterned.
- the radical polymerizable group here means an ethylenically unsaturated double bond group.
- examples of the radical polymerizable group include a vinyl group and a (meth) acryl group from the viewpoint of reactivity, and a (meth) acryl group is preferable.
- the (meth) acryl group refers to a methacryl group or an acryl group.
- the compound having two or more (meth) acryl groups include diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, tetraethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, Trimethylolpropane di (meth) acrylate, trimethylolpropane tri (meth) acrylate, ethoxylated trimethylolpropane di (meth) acrylate, ethoxylated trimethylolpropane tri (meth) acrylate, ditrimethylolpropane tri (meth) acrylate, ditri Methylolpropane tetra (meth) acrylate, 1,3-butanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, 1,4
- the density of photocrosslinking points in the film can be made moderate, the reaction rate during exposure can be increased, and the surface layer of the exposed area and / or the film side surface of the film can be prevented from being peeled off, and the development residue can be further suppressed.
- the compound having two or more radically polymerizable groups has a structure derived from a compound having at least three hydroxy groups, at least three ethylenically unsaturated double bond groups, and at least one aliphatic chain. It is preferable to contain the compound which has in a molecule
- the structure derived from a compound having at least three hydroxy groups in the molecule is preferably a structure derived from a polyhydric alcohol compound having at least three hydroxy groups in the molecule.
- Examples of the polyhydric alcohol compound having at least three hydroxy groups in the molecule include trimethylol methane, trimethylol ethane, trimethylol propane, trimethylol butane, trimethylol hexane, ditrimethylol methane, ditrimethylol ethane, and ditrimethylol propane.
- Glycerin pentaerythritol, dipentaerythritol, tripentaerythritol, tetrapentaerythritol, pentapentaerythritol.
- a structure derived from an unsaturated carboxylic acid derivative having an ethylenically unsaturated double bond group is preferable.
- a structure derived from (meth) acrylic acid is preferable in that the reaction rate at the time of exposure can be increased and the development residue can be further reduced.
- Examples of the unsaturated carboxylic acid derivative having an ethylenically unsaturated double bond group include (meth) acrylic acid, itaconic acid, maleic acid, fumaric acid, succinic acid mono (2-acryloxyethyl), and phthalic acid mono ( 2-acryloxyethyl), tetrahydrophthalic acid mono (2-acryloxyethyl), tetrahydrophthalic acid, 3-methyl-tetrahydrophthalic acid, 2-vinylacetic acid, 2-vinylcyclohexanecarboxylic acid, 3-vinylcyclohexanecarboxylic acid, Examples thereof include 4-vinylcyclohexanecarboxylic acid, 2-vinylbenzoic acid, 3-vinylbenzoic acid, 4-vinylbenzoic acid, carboxylic acid anhydrides, carboxylic acid chlorides, and carboxylic acid active esters thereof.
- the at least one aliphatic chain includes a lactone compound, an epoxy compound, an oxetane compound, a lactam compound, an aziridine compound, a carboxylic acid derivative having a hydroxy group in the molecule, and a carboxylic acid amide compound having a hydroxy group in the molecule.
- a structure derived from one or more selected types is preferred.
- the lactone compound include ⁇ -propiolactone, ⁇ -butyrolactone, ⁇ -valerolactone, and ⁇ -caprolactone.
- the epoxy compound include ethylene oxide, propylene oxide, butylene oxide, and hexylene oxide.
- Examples of the oxetane compound include oxetane, 2-methyloxetane, 2-ethyloxetane, and 2-propyloxetane.
- Examples of the lactam compound include ⁇ -propiolactam, ⁇ -butyrolactam, ⁇ -valerolactam, and ⁇ -caprolactam.
- Examples of the aziridine compound include aziridine, 2-methylaziridine, 2-ethylaziridine, and 2-propylaziridine.
- Examples of the carboxylic acid derivative having a hydroxy group in the molecule include hydroxyacetic acid, 3-hydroxypropionic acid, 4-hydroxybutyric acid, 5-hydroxyvaleric acid, and 6-hydroxycaproic acid.
- Examples of the carboxylic acid amide compound having a hydroxy group in the molecule include N- (2-hydroxyethyl) propionamide, N- (2-hydroxyethyl) methacrylamide and the like.
- a structure derived from a lactone compound and / or a lactam compound is preferable in that the reaction rate at the time of exposure can be increased to further reduce development residue.
- Such compounds include ⁇ -caprolactone modified dipentaerythritol penta (meth) acrylate, ⁇ -caprolactone modified dipentaerythritol hexa (meth) acrylate, ⁇ -valerolactone modified dipentaerythritol penta (meth) acrylate, ⁇ -valerolactone modified dipentaerythritol hexa (meth) acrylate, ⁇ -butyrolactone modified dipentaerythritol penta (meth) acrylate, ⁇ -butyrolactone modified dipentaerythritol hexa (meth) acrylate, ⁇ -propiolactone modified dipentaerythritol penta (Meth) acrylate, ⁇ -propiolactone-modified dipentaerythritol hexa (meth) acrylate, ⁇ -caprolactam-modified dipentaeryth
- the average molecular weight of at least one aliphatic chain is preferably 40 to 500, and preferably 70 to 300, from the viewpoint of improving the reaction rate during exposure and further reducing the generation of development residues. More preferred.
- a structure derived from a compound having at least three hydroxy groups, at least three ethylenically unsaturated double bond groups, and at least one aliphatic chain in the molecule, and the average molecular weight of the aliphatic chain is More preferable specific examples of the compound of 40 to 500 include a structure derived from a compound having at least three hydroxy groups, a structure derived from dipentaerythritol, and a structure derived from an unsaturated carboxylic acid derivative.
- a compound represented by the general formula (12) having three ethylenically unsaturated double bond groups and having at least one aliphatic chain having a lactone-derived modified chain in the molecule can be given.
- n represents an integer of 1 to 6
- the content of the compound having two or more radical polymerizable groups is based on 100 parts by weight of the total content of the alkali-soluble resin and the compound having two or more radical polymerizable groups from the viewpoint of improving sensitivity to exposure. 5 parts by weight or more is preferable, and 15 parts by weight or more is more preferable.
- the content of the compound having two or more radical polymerizable groups is such that an alkali-soluble resin and two or more radical polymerizable groups are used from the viewpoint of reflowability in the curing process in order to obtain a low-taper pixel dividing layer. 80 parts by weight or less is preferable and 60 parts by weight or less is preferable with respect to 100 parts by weight of the total content of the compounds having.
- the photosensitive composition of the present invention When the photosensitive composition of the present invention has negative photosensitivity, it further contains a photopolymerization initiator as a photosensitive agent.
- the photopolymerization initiator refers to a compound that generates radical active species by bond cleavage and / or reaction upon exposure.
- a photopolymerization initiator By containing a photopolymerization initiator, a compound having two or more radical polymerizable groups is photocured by exposure, and the exposed part is insolubilized in an alkali developer to form a negative pattern. Can do.
- photopolymerization initiator examples include “Adekaoptomer” (registered trademark) N-1818, N-1919, “Adeka Cruz” (registered trademark) NCI-831 (all of which are manufactured by ADEKA Corporation).
- Acylphosps such as carbazole-based photopolymerization initiators and acylphosphine oxide-based photopolymerization initiators such as 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide (“IRGACURE” (registered trademark) TPO manufactured by BASF) Finoxide photoinitiator, 1,2-octanedione, 1- [4- (phenylthio) -2- (O-benzoyloxime)] (“Irgacure” (registered trademark) OXE01, manufactured by BASF), Etanone, 1 -[9-Ethyl-6- (2-methylbenzoyl) -9H-carbazol-3-yl]-, 1- (O- Cety
- a photoinitiator contains a carbazole type photoinitiator and an oxime ester type photoinitiator from the point which can raise the reaction rate at the time of exposure and can suppress a development residue more.
- the content of the photopolymerization initiator is preferably 5 parts by weight or more and more preferably 10 parts by weight or more with respect to 100 parts by weight of the compound having two or more radical polymerizable groups from the viewpoint of improving sensitivity to exposure.
- the content of the photopolymerization initiator is 60 parts by weight with respect to 100 parts by weight of the compound having two or more radically polymerizable groups in order to increase the reactivity at the time of exposure and further suppress the development residue.
- the following is preferable, and 40 parts by weight or less is more preferable.
- the photosensitive composition of the present invention When the photosensitive composition of the present invention has positive photosensitivity, it preferably contains a photoacid generator as a photosensitive agent.
- the content of the black pigment in the positive photosensitive composition of the present invention is preferably 5 parts by weight or more in 100 parts by weight of the total solid content of the positive photosensitive composition from the viewpoint of further improving the light shielding property. Part or more is more preferable.
- the content of the black pigment contained in the positive photosensitive composition is 100 parts by weight of the total solid content contained in the positive photosensitive composition in order to obtain sufficient sensitivity and developability for exposure. , 50 parts by weight or less is preferable, and 40 parts by weight or less is more preferable.
- the black pigment is preferably included when the positive photosensitive composition is produced in the form of the pigment dispersion previously described.
- the acid value of the alkali-soluble resin in the positive photosensitive composition is preferably 10 mgKOH / g or more.
- the acid value is preferably 300 (mgKOH / g) or less from the viewpoint of suppressing peeling of the pattern edge of the pixel division layer.
- an alkali-soluble resin is an alkali-soluble polyimide resin, an alkali-soluble polyimide precursor, an alkali-soluble polymer.
- a benzoxazole resin and an alkali-soluble polybenzoxazole precursor are preferable.
- an alkali-soluble polyimide resin having a structure represented by the general formula (11) is used. More preferred.
- a quinonediazide compound is preferable.
- a reaction product obtained by esterifying a compound having a phenolic hydroxyl group with quinonediazidesulfonyl acid chloride is more preferable.
- exposure can be performed by patterning by increasing the alkali solubility of the exposed portion relative to the unexposed portion and removing the exposed portion with an alkaline developer. A layer can be formed.
- Compounds having a phenolic hydroxyl group include Bis-Z, BisP-EZ, TekP-4HBPA, TrisP-HAP, TrisP-PA, TrisP-PHBA, BisOCHP-Z, BisP-MZ, BisP-PZ, BisP-IPZ, BisOCP -IPZ, BisP-CP, BisRS-2P, BisRS-3P, BisP-OCHP, Methylenetris-p-CR, Methylenetetra-p-CR, BisRS-26X, Bis-PFP-PC (all of which are Honshu Chemical Industries, Ltd.
- BIR-OC BIP-PC
- BIR-PC BIR-PC
- BIR-PTBP BIR-PCHP
- BIP-BIOC-F 4PC
- BIR-BIPC-F TEP-BIP-A (all Asahi Organic Industries) Product).
- Examples of the quinone diazide sulfonyl acid chloride include 4-naphthoquinone diazide sulfonyl acid chloride and 5-naphthoquinone diazide sulfonyl acid chloride.
- Such a quinonediazide compound is preferable because it has high sensitivity to a mixed line composed of i-line (365 nm), h-line (405 nm), and g-line (436 nm) in an exposure step described later.
- the addition amount of such a quinonediazide compound is preferably 1 to 50 parts by weight with respect to 100 parts by weight of the alkali-soluble resin from the viewpoint of pattern processability and heat resistance of the finally obtained pixel dividing layer.
- a part of the phenolic hydroxyl group of the compound having a phenolic hydroxyl group may be intentionally left without esterification.
- the photosensitive composition of the present invention may further contain a thermal crosslinking agent regardless of the negative type / positive type.
- a thermal crosslinking agent By containing a thermal crosslinking agent, the film strength and heat resistance of the pixel division layer finally obtained can be improved by thermal crosslinking in the curing step.
- the thermal crosslinking agent include compounds having at least two alkoxymethyl groups and / or methylol groups, and compounds having two or more epoxy groups.
- Examples of the compound having two or more alkoxymethyl groups and / or methylol groups include Nicalac (registered trademark) MW-100LM, MX-270, MX-280, MX-290 (manufactured by Sanwa Chemical Co., Ltd.), DML -PC (manufactured by Honshu Chemical Industry Co., Ltd.).
- Examples of the compound having two or more epoxy groups include “Epolite” (registered trademark) 40E, 100E, 200E, 400E, 70P, 200P, 400P, 4000, 3002 (N) (and above) , All manufactured by Kyoeisha Chemical Co., Ltd.), “jER” (registered trademark) 828, 1002, 1750, 1007, YX8100-BH30, E1256, E4250, E4275 (all above, Mitsubishi Chemical ( ), “TECHMORE” (registered trademark) VG-3101L (manufactured by Printec Co., Ltd.), “TEPIC” (registered trademark) S, G, P, L (all of which are Nissan Chemical Industries, Ltd.) Co., Ltd.).
- the solvent examples include those exemplified as the solvent in the pigment dispersion of the present invention.
- the content of the solvent in the photosensitive composition of the present invention is preferably 70% by weight or more from the viewpoint of film thickness uniformity of the coating film in the coating step.
- the content of the solvent is preferably 95% by weight or less from the viewpoint of suppressing pigment sedimentation.
- the photosensitive composition of the present invention may further contain a color-adjusting material, and the transmittance spectrum and reflection color of the pixel division layer can be set to a desired range.
- the toning material include dyes, organic pigments, and inorganic pigments. Two or more of these may be contained. From the viewpoint of alkali resistance and light resistance, an organic pigment or an inorganic pigment is preferable, and an organic pigment is more preferable because of its low dielectric constant.
- organic pigments examples include C.I. I. Pigment Yellow 12, 13, 17, 20, 24, 83, 86, 93, 95, 109, 110, 117, 125, 129, 137, 138, 139, 147, 148, 150, 153, 154, 166, 168, Organic yellow pigments such as 185, C.I. I. Organic orange pigments such as C.I. Pigment Orange 13, 36, 38, 43, 51, 55, 59, 61, 64, 65, 71; I.
- the photosensitive composition of the present invention may further contain a dispersant for a toning material in addition to the dispersant for dispersing the black pigment.
- a dispersant for a toning material examples include those exemplified as the above-mentioned alkali-soluble resin and the polymer resin dispersant having a basic adsorbing group. Just choose.
- the photosensitive composition of the present invention may contain a surfactant.
- a surfactant By containing the surfactant, the coating property and the smoothness of the surface of the coating film can be improved, and the occurrence of coating defects such as Benard cell can be suppressed.
- the surfactant here refers to a so-called leveling agent.
- the surfactant include anionic surfactants such as ammonium lauryl sulfate and polyoxyethylene alkyl ether sulfate triethanolamine, cationic surfactants such as stearylamine acetate and lauryltrimethylammonium chloride, lauryldimethylamine oxide, and lauryl.
- Amphoteric surfactants such as carboxymethylhydroxyethylimidazolium betaine, nonionic surfactants such as polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, sorbitan monostearate, and silicone-based interfaces mainly composed of polydimethylsiloxane An activator and a fluorosurfactant are mentioned.
- the cured film of the present invention is a cured product of the above-described photosensitive composition, and can be suitably used as a pixel division layer of an organic EL display.
- the dielectric constant of the pixel division layer is preferably 7 or less, and more preferably 5 or less.
- the dielectric constant can be measured using a dielectric constant measuring device such as an LCR meter manufactured by Agilent Technologies.
- the dielectric constant of the component constituting the black pigment of the present invention is, for example, 3.5 to 4 for the organic black pigment contained in the nucleus, 4 for silica contained in the coating layer, 9 for alumina, 33 for zirconia, 48 for titanium oxide.
- the dielectric constant of the binder component other than the black pigment can be taken into consideration, and the dielectric constant of the cured film or pixel division layer of the present invention can be adjusted to a desired range.
- the optical density (OD value) per 1.0 ⁇ m thickness of the pixel division layer is preferably 0.5 or more, and more preferably 1.0 or more.
- the transmittance spectrum and the reflectance spectrum of the cured film of the present invention can be controlled by adjusting the content ratio of the organic black pigment contained in the nucleus as necessary.
- the cured film of the present invention having a perylene black pigment and a coating layer with respect to the black pigment of the present invention having a benzodifuranone black pigment and a coating layer.
- the black pigment is mixed, the transmittance / reflectance at a wavelength of 650 to 780 nm in the visible light region can be lowered, the optical property has little wavelength dependency, and the red color in the reflected color is suppressed, that is, A neutral black pixel division layer can be obtained.
- the above-mentioned toning material may be further contained, and fine adjustment may be performed so as to obtain desired optical characteristics.
- the display area can be made high definition, the display quality of an image or video can be improved, and the value as a display device can be improved.
- the aperture ratio of the pixel division layer in the display area is preferably 20% or less.
- the aperture ratio refers to the area ratio of the opening of the pixel division layer with respect to the area of the pixel division layer. The lower the aperture ratio, the larger the formation area of the pixel dividing layer in the display area, and the smaller the area of the opening serving as the light emitting pixel portion. Therefore, the occurrence of dark spots due to development residue greatly affects the display quality. . That is, the effect of the present invention contributes more as the organic EL display has a lower aperture ratio and a higher definition display area.
- the cured film that is a cured product of the photosensitive composition of the present invention is used as a pixel dividing layer having a spacer function in the panel member configuration
- the portions having different thicknesses of the cured film, that is, the step shape is in-plane. You may have.
- a method for obtaining a pixel dividing layer having a step difference in thickness of the cured film a negative type or a positive type in which a plurality of types of openings having different light transmittances in the exposure light region are formed in an exposure process described later. It can be formed by pattern exposure through any halftone exposure mask.
- the photosensitive composition of the present invention has negative photosensitivity
- a portion of the exposed portion where the amount of exposure is locally high is further reduced in solubility in an alkali developer, and finally obtained pixel division Formed as protrusions in the layer.
- the solubility in an alkali developer is further reduced in a portion of the exposed portion where the exposure amount is locally low, and the pixel finally obtained It forms as a convex part in a division layer.
- the cured film of the present invention can be obtained, for example, by a method including an application step, a pre-bake step, an exposure step, a development step, and a curing step in this order.
- a cured film is used for the pixel division layer, from the viewpoint of improving productivity, multi-cavity processing may be performed in which several organic EL displays per substrate are arranged and formed collectively.
- the photosensitive composition of the present invention is applied to a substrate to obtain a coating film.
- a substrate for example, in the case of a top emission type organic display, as a substrate, a reflective layer made of a patterned silver / copper alloy or the like and an ITO electrode of the same pattern are sequentially laminated on the surface of a glass substrate or a flexible substrate.
- a laminated substrate is usually used.
- the flexible film substrate a substrate having high heat resistance and flexibility and containing carbon atoms as a main component is preferable, and in particular, a substrate in which a polyimide film is fixed on the surface of a glass substrate that is a support. Is more preferable.
- Examples of the coating apparatus used in the coating process include a slit coater, a spin coater, a gravure coater, a dip coater, a curtain flow coater, a roll coater, a spray coater, a screen printer, and an inkjet. Since the pixel dividing layer is usually formed with a thickness of about 0.5 to 3 ⁇ m due to the material structure, it is suitable for thin film coating, hardly causes coating defects, and has excellent film thickness uniformity and productivity. A spin coater is preferable, and a slit coater is more preferable from the viewpoint of liquid saving.
- the pre-baked film is obtained by evaporating the solvent in the coating film by heating.
- the heating device include a hot air oven, a hot plate, and an IR oven. Pin gap pre-baking or contact pre-baking may be performed.
- the prebake temperature is preferably 50 to 150 ° C.
- the prebake time is preferably 30 seconds to several hours. For example, it may be pre-baked in two or more stages, such as pre-baking at 80 ° C. for 2 minutes and then pre-baking at 120 ° C. for 2 minutes.
- a part of the solvent contained in the coating film is volatilized by a vacuum / vacuum dryer after the coating process, and then a pre-baking process by heating may be performed.
- the exposure film is obtained by irradiating active chemical rays from the film surface side of the pre-baked film through a photomask.
- the exposure apparatus used in the exposure process include a stepper, a mirror projection mask aligner (MPA), and a parallel light mask aligner (PLA).
- the active actinic radiation to be irradiated during exposure include ultraviolet light, visible light, electron beam, X-ray, KrF (wavelength 248 nm) laser, ArF (wavelength 193 nm) laser, and the like.
- a j-line (wavelength 313 nm), i-line (wavelength 365 nm), h-line (wavelength 405 nm) or g-line (wavelength 436 nm) of a mercury lamp is preferable, and a mixed line thereof is more preferable.
- the exposure dose is usually about 10 to 4000 mJ / cm 2 (i-line conversion value).
- a mask for example, a light-shielding thin film made of a metal such as chromium or a black organic resin is formed in a pattern on one surface of a substrate having translucency at an exposure wavelength such as glass, quartz, or a film. A mask formed into a film is mentioned.
- the photosensitive composition of the present invention In the formation of the pixel division layer using the photosensitive composition of the present invention, either a negative exposure mask or a positive exposure mask can be used, and pattern exposure is performed by transmitting active actinic radiation only in the mask opening. By doing this, an exposed film having in-plane the exposed portion of the same pattern and the unexposed portion excluding the exposed portion is obtained.
- the photosensitive composition of the present invention has negative photosensitivity
- the unexposed area becomes a pattern opening when the photosensitive composition of the present invention has a negative photosensitivity
- the exposed area becomes a pattern opening when positive photosensitive is obtained.
- the exposure part here refers to a part irradiated with exposure light through the mask opening
- the unexposed part refers to a part not irradiated with exposure light.
- a patterned development film is obtained by development.
- the developing method include a method of immersing the exposed film in an organic alkaline aqueous solution or an inorganic alkaline aqueous solution, which is a developer, by a method such as shower, dipping, paddle, etc. for 10 seconds to 10 minutes.
- a pattern-like developed film can be obtained by dissolving either the unexposed part or the exposed part using the difference in solubility between the exposed part and the unexposed part in the developer.
- Examples of the developer include organic alkaline aqueous solutions such as 2.38 wt% tetramethylammonium hydroxide (hereinafter “TMAH” aqueous solution), 0.4 wt% TMAH aqueous solution, 0.2 wt% TMAH aqueous solution, .45 wt% potassium hydroxide aqueous solution (hereinafter “KOH”), 0.045 wt% KOH aqueous solution, 1 wt% sodium hydrogen carbonate aqueous solution, 0.2 wt% sodium hydrogen carbonate aqueous solution, 0.1 wt% sodium hydroxide
- examples include inorganic alkaline aqueous solutions such as aqueous solutions.
- TMAH is preferred from the viewpoint that the developer that permeates and remains in the film surface layer or inside the film is volatilized in a curing step after development and can be easily removed from the pixel division layer. Further, after the development, a washing process by shower with deionized water and / or a draining process by air jet may be added.
- the developing film is thermally cured by heating, and at the same time, components such as moisture and remaining developer are volatilized to obtain a cured film.
- the heating device include a hot air oven and an IR oven.
- the heating temperature is preferably 180 to 300 ° C., and the heating time is preferably 15 to 90 minutes.
- the heating atmosphere is preferably an air or nitrogen atmosphere, and the pressure during heating is preferably atmospheric pressure.
- the display is enlarged so that the cross section can be observed at a magnification of 100,000 times under the condition of an acceleration voltage of 300 kV, and the outer periphery of the nucleus can be recognized as a contrast difference.
- the cross section was obtained by adjusting the brightness and contrast.
- the average coverage N (%) of the black pigment is obtained by calculating the black pigment coverage M (%) by the following formula and calculating the number average value thereof. It was.
- the embedded resin was not sufficiently impregnated during the preparation of the observation sample, and part of the coating layer was missing during polishing and the coverage was Therefore, it was excluded from the target in calculating the average coverage N (%).
- Coverage ratio M (%) ⁇ L1 / (L1 + L2) ⁇ ⁇ 100
- L1 The total length (nm) of the part of the outer periphery of the nucleus where the nucleus is covered with the coating layer
- L2 Total length (nm) of the portion of the outer periphery of the nucleus where the nucleus is exposed (the portion where the interface and the embedded resin are in direct contact)
- L1 + L2 outer peripheral length (nm) of the nucleus.
- the value obtained by multiplying by 100 is used as the weight ratio (wt%) of the black pigment dissolved in the 2.38 wt% TMAH aqueous solution, and the alkali resistance is evaluated based on the following criteria, and AA and AC Was passed and D was rejected.
- AA Less than 200 nm A: 200 nm or more, less than 300 nm B: 300 nm or more, less than 500 nm C: 500 nm or more, less than 1000 nm D: 1000 nm or more
- the dispersion stability was evaluated based on the following criteria, and A to C were accepted and D to F were rejected. However, when sediment was generated, the evaluation was E regardless of the thickening rate.
- the evaluation was F regardless of the viscosity.
- Thickening rate (%) (viscosity with time ⁇ initial viscosity) / initial viscosity ⁇ 100 When the viscosity increase rate is a positive value, the viscosity is increased.
- the OD value of the light shielding evaluation substrate was regarded as the OD value of the cured film.
- the thickness of the cured film is measured at three locations within the surface using a stylus-type film thickness measuring device (Tokyo Seimitsu Co., Ltd .; Surfcom), rounded off to the second decimal place of the average value, The number up to the first place was obtained.
- FIG. 1 is a schematic diagram showing undulations at the pattern edge portion of the pixel division layer.
- Reference numeral 1 in FIG. 1 represents an opening
- reference numeral 2 represents a pixel division layer.
- the arrows a and b in FIG. 1 are straight lines parallel to the lateral edge portion of the pixel division layer forming substrate, while the c and d arrows are vertical edge portions of the pixel division layer forming substrate. Is a straight line parallel to.
- the horizontal and vertical edge portions of the pixel division layer forming substrate used as a reference here are those indicated by reference numeral 3 in FIG. 2 showing a method for manufacturing an organic EL display having a pixel division layer described later. It is the edge part of the horizontal direction and vertical direction of an alkali glass substrate.
- Example 1 As a core, 150 g of “Irgaphor” (registered trademark) Black S0100 (surface untreated product; pH 4.5 of pigment surface; average primary particle size 50 nm; BASF), which is a benzodifuranone-based black pigment represented by the formula (3) (Hereinafter, “S0100”) was put into a glass container containing 2850 g of deionized water and stirred with a dissolver to obtain an aqueous pigment suspension.
- “Irgaphor” registered trademark
- S0100 surface untreated product; pH 4.5 of pigment surface; average primary particle size 50 nm; BASF
- aqueous solution of sodium silicate Na 2 O ⁇ nSiO 2 ⁇ mH 2 O A solution obtained by diluting 30% by weight as sodium oxide and 10% by weight as silicon dioxide) with deionized water 100 times and 0.001 mol / L sulfuric acid so that the pH is maintained within a range of 2 or more and less than 7.
- silica was deposited on the surface of the core and coated.
- an aqueous sodium aluminate solution (Na 2 O ⁇ nAl 2) is used so that the coating amount of alumina is 2.0 parts by weight in terms of Al 2 O 3 with respect to 100 parts by weight of the core with respect to the aqueous pigment suspension.
- the addition rate was adjusted in parallel so that each of the addition rates was maintained, and the surface of the silica coating layer was coated with aluminum hydroxide precipitated.
- the average coverage was calculated
- the constituent ratio of the black pigment is shown in Table 1, and the evaluation results are shown in Table 2.
- Example 2 A black pigment 2 having an average primary particle diameter of 54 nm was obtained by the same production method as in Example 1 except that the silica coating amount was 10.0 parts by weight in terms of SiO 2 and alumina was not coated. The rate was determined and the alkali resistance and dispersibility were evaluated. The constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 3 The average primary in the same production method as in Example 1 except that the silica coating amount was 5.0 parts by weight in terms of SiO 2 and the alumina coating amount was 1.0 parts by weight in terms of Al 2 O 3.
- a black pigment 3 having a particle diameter of 53 nm was obtained, the average coverage was determined, and the alkali resistance and dispersibility were evaluated.
- the constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 4 A black pigment 4 having an average primary particle diameter of 51 nm was obtained by the same production method as in Example 1 except that the silica coating amount was 2.0 parts by weight in terms of SiO 2 and alumina was not coated. The rate was determined and the alkali resistance and dispersibility were evaluated. The constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 5 A black pigment 5 having an average primary particle size of 66 nm was obtained by the same production method as in Example 1 except that the silica coating amount was 20.0 parts by weight in terms of SiO 2 and alumina was not coated. The rate was determined and the alkali resistance and dispersibility were evaluated. The constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 6 A black pigment 6 having an average primary particle diameter of 51 nm was obtained by the same production method as in Example 1 except that the silica coating amount was 1.0 part by weight in terms of SiO 2 and alumina was not coated. The rate was determined and the alkali resistance and dispersibility were evaluated. The constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 7 A black pigment 7 having an average primary particle diameter of 71 nm was obtained by the same production method as in Example 1 except that the silica coating amount was 21.0 parts by weight in terms of SiO 2 and alumina was not coated. The rate was determined and the alkali resistance and dispersibility were evaluated. The constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 8 A black pigment 8 having an average primary particle diameter of 50 nm was obtained by the same production method as in Example 1 except that the silica coating amount was 0.9 parts by weight in terms of SiO 2 and alumina was not coated. The rate was determined and the alkali resistance and dispersibility were evaluated. The constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 9 A black pigment 9 having an average primary particle diameter of 56 nm was obtained by the same production method as in Example 1 except that the silica was not coated and the alumina coating amount was 5.0 parts by weight in terms of Al 2 O 3 , The average coverage was determined and the alkali resistance and dispersibility were evaluated.
- the constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 10 Black with an average primary particle diameter of 55 nm by the same production method as in Example 1 except that alumina is not coated, zirconia is coated by the following method, and the coating amount is 1.0 part by weight in terms of ZrO 2. Pigment 10 was obtained, the average coverage was determined, and alkali resistance and dispersibility were evaluated. The constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- the coating of zirconia was carried out by transferring the aqueous pigment suspension after coating silica into a flask equipped with a reflux condenser, and adding 0.01 mol / L zirconium oxychloride (ZrOCl 2 .8H 2 O). And zirconia was precipitated by hydrolysis at a liquid temperature of 80 ° C. After neutralizing the by-produced hydrochloric acid with aqueous ammonia, subsequent steps such as filtration, washing with water, removal of impurities, drying and pulverization were carried out in the same procedure as in Example 1.
- Example 11 instead of coating silica and alumina separately, sodium silicate aqueous solution, sodium aluminate aqueous solution and sulfuric acid were added in parallel to the aqueous pigment suspension so that the pH was maintained in the range of 2 to less than 7.
- the black pigment 11 having a particle diameter of 54 nm was obtained, the average coverage was determined, and the alkali resistance and dispersibility were evaluated.
- the constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 12 The black pigment A was obtained by the same production method as in Example 1 except that the silica coating amount was 5.0 parts by weight in terms of SiO 2 and alumina was not coated.
- the average primary particle diameter of 57 nm is obtained by subjecting the silica surface to silane coupling treatment so that the group containing 3-methacryloxypropyl group and silicon atom is 3.0 parts by weight with respect to 100.0 parts by weight.
- a black pigment 12 was obtained, the average coverage was determined, and the alkali resistance and dispersibility were evaluated.
- the constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- the silane coupling treatment was performed by adding acetic acid as an acid catalyst to deionized water at a liquid temperature of 40 ° C. to adjust the pH to 4, and then adding 3-methacryloxypropyltrimethoxysilane (manufactured by Shin-Etsu Chemical; KBM-503) to 5 0.000 g was added and hydrolyzed, and this was added to an aqueous pigment suspension in which 100.00 g of black pigment A and 400.00 g of deionized water were mixed and maintained at a liquid temperature of 70 ° C., and stirred for 30 minutes. Then, the temperature was raised to 100 ° C., and after further stirring for 1 hour, the heating was stopped and the mixture was cooled in a container containing ice water. Thereafter, post-processes such as filtration, water washing, impurity removal, drying, and pulverization were performed in the same procedure as in Example 1.
- Example 13 As a starting material, 200.00 g of 2,5-dihydroxybenzene-1,4-diacetic acid and 401.79 g of isatin sulfonic acid were mixed (each in a molar ratio of 1: 2), and 152.27 g as a catalyst. P-toluenesulfonic acid monohydrate was added and stirred in a 60% by weight aqueous acetic acid solution to obtain a reaction mixture, which was heated to 120 ° C. and refluxed for 20 hours or more. The reaction mixture was then further stirred without heating until the liquid temperature dropped to 90 ° C.
- the mixture was filtered, and the residue was washed with a 60 wt% aqueous acetic acid solution and then with methanol to obtain a reaction product.
- the reaction product was added to dimethyl sulfoxide and stirred at 130 ° C. for 20 hours to dissolve the dissolved reactant, and then the reaction was conducted by further stirring the dimethyl sulfoxide solution without heating until the liquid temperature dropped to 100 ° C.
- the product was crystallized to obtain a dimethyl sulfoxide solution of pigment crude containing coarse particles. Subsequently, the pigment crude is filtered, washed with dimethyl sulfoxide at a liquid temperature of 25 ° C., and then washed with water.
- R 1 , R 2 , R 4 , R 5 , R 6 , R 7 , R 9 and R 10 are hydrogenated by dry pulverization until the diameter reaches 50 nm.
- a black pigment 14 having an average primary particle diameter of 52 nm was obtained by the same production method as in Example 1 except that the black pigment 13 was used as a nucleus and the alumina was not coated, and the average coverage was obtained to determine alkali resistance and dispersion. Sex was evaluated.
- the constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 14 The same production method as in Example 13, except that 200.00 g of 2,5-dihydroxybenzene-1,4-diacetic acid and 285.01 g of 5-methylisatin (each in a molar ratio of 1: 2) were used as starting materials.
- a benzodifuranone-based black pigment in which R 1 , R 2 , R 4 , R 5 , R 6 , R 7 , R 9 and R 10 are hydrogen atoms, and R 3 and R 8 are CH 3 A black pigment 15 was obtained.
- a black pigment 16 having an average primary particle size of 53 nm was obtained by the same production method as in Example 1 except that the black pigment 15 was used as a core and the alumina was not coated, and the average coverage was obtained to determine alkali resistance and dispersion. Sex was evaluated.
- the constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 15 A black pigment 17 having an average primary particle diameter of 49 nm was obtained by the same production method as in Example 1 except that the drying condition in the drying oven was changed to 280 ° C. for 2 hours in addition to the fact that the alumina was not coated. The average coverage was determined and the alkali resistance and dispersibility were evaluated. The constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- a mixture of perylene-based black pigments represented by formula (6) and formula (7) surface untreated product; pH 8.0 on pigment surface; average primary particle size 55 nm; 3, 4, 9, 10-perylenetetracarboxylic acid bisbenzimidazole; cis-, trans-isomer mixture weight ratio 1: 1; in the table,
- aqueous solution of sodium silicate Na 2 O ⁇ nSiO 2 ⁇ mH 2 O A solution obtained by diluting 30% by weight as sodium oxide and 10% by weight as silicon dioxide) with deionized water 100 times and 0.001 mol / L sulfuric acid so that the pH is maintained within a range of 2 or more and less than 7.
- silica was deposited on the surface of the core and coated.
- the silica coating amount of the black pigment 18 was 10.0 parts by weight in terms of SiO 2 with respect to 100.0 parts by weight of the nucleus. .
- Example 17 As a core, 147.00 g of the mixture of the perylene-based black pigment represented by the above formula (6) and formula (7) and 13.60 g of pigment derivative A (CI Pigment Blue 15: 3 as a base pigment) A black pigment having an average primary particle diameter of 55 nm by the same production method as in Example 16 except that the copper phthalocyanine derivative having a sulfonic acid group; the average number of substituents of the sulfonic acid group relative to the copper phthalocyanine residue is 1.8) 19 was obtained, the average coverage was determined, and the alkali resistance and dispersibility were evaluated.
- the constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- part of the pigment derivative A disappears in the production process of the black pigment 19, and the core component of the finally obtained black pigment 19 is 98.0 parts by weight of the formula (6) and the formula ( The mixture of the perylene-based black pigment represented by 7) and 2.0 parts by weight of the pigment derivative A were obtained.
- the coating amount of silica of the black pigment 19 was 10.0 parts by weight in terms of SiO 2 with respect to 100.0 parts by weight of the nucleus.
- Example 18 In the same operation as in Example 16, an aqueous pigment suspension containing a mixture of the perylene-based black pigments represented by the above formulas (6) and (7) as a nucleus was prepared, and the silica coating amount Is performed up to the first surface treatment step so that the core is 100.0 parts by weight in terms of SiO 2 in terms of SiO 2, and the black pigment B in which the first silica is coated on the surface of the core is obtained.
- An aqueous pigment suspension containing was obtained, and it was again fed into a horizontal bead mill filled with 0.4 mm ⁇ zirconia beads, and dispersed one pass at a discharge rate of 100 mL / min.
- the second surface treatment step was performed so that the sum of the coating amount of silica in the layer was 10.0 parts by weight in terms of SiO 2 with respect to 100 parts by weight of the core. Thereafter, subsequent steps such as filtration, washing with water, removing impurities, drying, and pulverization are performed by the same production method as in Example 16 to obtain a black pigment 20 having an average primary particle diameter of 59 nm, and an average coverage is obtained. Dispersibility was evaluated. The constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- Example 19 200.00 g of “chromofine black” (registered trademark) A1103 (pigment surface pH 7.5; average primary particle size 430 nm; Dainichi Seika Kogyo Co., Ltd.), which is an azo black pigment represented by the formula (9) "A1103”), 2000.00 g of sodium chloride as a water-soluble inorganic salt, and 500 g of diethylene glycol as a water-soluble solvent are mixed, and the liquid temperature is maintained at 100 to 110 ° C with a kneader. The mixture was kneaded for 4 hours to obtain a black kneaded product.
- “chromofine black” registered trademark
- A1103 pigment represented by the formula (9) "A1103”
- Example 20 317.35 g (1.00 mol) of 2- [3-[(4-aminophenyl) amino] -1H-isoindole-1-ylidene] -2-cyano-N-methylacetamide was added to 1000 g of nitrobenzene. Then, concentrated hydrochloric acid was added to form a hydrochloride, and an aqueous sodium nitrite solution was added to diazotize to prepare a diazonium salt solution.
- the coupling reaction was completed to obtain a reaction product.
- the reaction product was filtered to obtain a black filtrate, washed with methanol, washed with water and dried to obtain a pigment crude.
- the primary particle diameter is refined by solvent salt milling in the same manner as in Example 19, and the black pigment 23 having an average primary particle diameter of 60 nm, which is an azo black pigment represented by the formula (10), is obtained. Obtained.
- the black pigment 23 was coated with silica by the same production method as in Example 16 to obtain a black pigment 24 having an average primary particle diameter of 67 nm.
- the average coverage was determined and the alkali resistance and dispersibility were evaluated.
- the constituent ratios of the black pigment are shown in Table 1, and the evaluation results are shown in Table 2.
- the amount of the black pigment 24 covered with silica was 10.0 parts by weight in terms of SiO 2 with respect to 100.0 parts by weight of the core.
- the coating amount of barium sulfate on the black pigment 25 was 30.0 parts by weight in terms of BaSO 4 with respect to 100.0 parts by weight of the nucleus. It was.
- barium sulfate here is an ionic crystalline inorganic coating material, and does not belong to any of silica, metal oxide, and metal hydroxide.
- “jER” registered trademark 828 (bisphenol A type epoxy resin; manufactured by Mitsubishi Chemical Corporation), which is an epoxy resin, and toluene were mixed to separately prepare an epoxy resin solution A (solid content 10% by weight).
- the mixture is stirred for 1 hour and filtered, A black filtrate was obtained, dried in a drying oven at an actual temperature of 90 ° C. for 6 hours, and further heated in a drying oven at 220 ° C. for 30 minutes to thermally cure the epoxy resin. Since blocking between the coating layers was remarkable, after strong pulverization with a continuous swing hammer mill, the particles were sized by dry pulverization using a jet mill to obtain a black pigment 26 having an average primary particle diameter of 75 nm.
- the epoxy resin is an organic coating material and does not belong to any of silica, metal oxide, and metal hydroxide.
- the solution was transferred into a synthesis flask. Stirring while introducing nitrogen gas into the synthesis flask, raising the liquid temperature to 80 ° C., and covering the acrylic resin with 10.0 parts by weight with respect to 100 parts by weight of the core 20.00 g of methyl methacrylate and 5.00 g of trimethylolpropane triacrylate as a source and 0.50 g of azobisisobutyronitrile as a thermal polymerization initiator were added and stirred at 80 ° C. for 6 hours for thermal polymerization. Then, an acrylic resin was coated on the surface of the core. Gelled substances not involved in the coating are removed with a gel trap filter to obtain a black filtrate, dried in a drying oven at an actual temperature of 90 ° C.
- the polymerization initiator was decomposed to deactivate the active species, and unreacted monomers were volatilized. Since blocking between the coating layers was remarkable, the mixture was strongly pulverized with a continuous swing hammer mill and then sized by dry pulverization using a jet mill to obtain a black pigment 27 having an average primary particle size of 63 nm.
- the acrylic resin here is an organic coating material and does not belong to any of silica, metal oxide, and metal hydroxide.
- Comparative Example 15 In the preparation of the oil-based pigment suspension, the same production method as in Comparative Example 9 except that the black pigment 21 was used as the core and the dispersion condition of the horizontal bead mill was 4 pass dispersion at a discharge rate of 30 mL / min. Thus, a black pigment 33 having an average primary particle diameter of 66 nm was obtained, an average coverage was obtained, and alkali resistance and dispersibility were evaluated.
- the composition ratio of the black pigment is shown in Table 3, and the evaluation results are shown in Table 4.
- MA100 carbon black; CI Pigment Black 7; Mitsubishi Chemical Corporation
- MA100 is an inorganic black pigment that does not belong to any of the benzodifuranone black pigment, perylene black pigment, and azo black pigment and has an average primary particle size of 25 nm.
- the alkali resistance and dispersibility of “MA100” in the table were evaluated. The evaluation results are shown in Table 4.
- EP193 (copper phthalocyanine blue; CI Pigment Blue 15: 6; DIC, which is an organic blue pigment and does not belong to any of the benzodifuranone black pigment, perylene black pigment, and azo black pigment, having an average primary particle size of 54 nm
- DIC which is an organic blue pigment and does not belong to any of the benzodifuranone black pigment, perylene black pigment, and azo black pigment, having an average primary particle size of 54 nm
- the alkali resistance and dispersibility of “EP193” in the table were evaluated. The evaluation results are shown in Table 4.
- Comparative Examples 1 to 3 have a large amount of dissolved pigment, and benzodifuranone-based black pigment is an organic pigment having poor alkali resistance.
- Examples 1 to 15 show that the black pigment of the present invention having a coating layer containing silica, metal oxide and / or metal hydroxide has drastically improved alkali resistance.
- Comparative Examples 7 to 9 it can be seen from Comparative Examples 7 to 9 that the other coating materials are insufficient in improving the alkali resistance.
- Barium sulfate, an inorganic coating material has high alkali resistance as the coating material itself, but has a poor permeation suppression effect.
- Example 21 As a dispersion resin solution, 45.00 g of alkali-soluble polyimide resin solution A and 9.00 g of Solsperse 20000 are mixed in 223.50 g of PGMEA and stirred for 10 minutes, and then 22.50 g of black pigment 1 is added thereto. The mixture was agitated for 30 minutes, and wet media dispersion treatment was performed in a circulating manner for 30 minutes using a horizontal bead mill filled with 0.4 mm ⁇ zirconia beads.
- Example 21 except that the black pigment shown in Tables 1 and 3 instead of the black pigment 1, S0100, a mixture of perylene-based black pigments represented by the above formulas (6) and (7), and MA100 were used.
- Pigment dispersions 2 to 14, 17 to 25, 27 to 30, and 32 to 44 were prepared by the same production method as described above, and the dispersion stability was evaluated.
- Tables 5 and 6 show the blending amount (g) of each raw material and the evaluation results.
- Example 35 to 36 Pigment dispersions 15 and 16 were prepared in the same manner as in Example 21 except that the black pigment 2 or the black pigment 18 was used instead of the black pigment 1 and Solsperse 20000 was not used. evaluated. Table 5 shows the blending amount (g) of each raw material and the evaluation results.
- a wet type media dispersion process is performed by circulation for 1 hour using a horizontal bead mill filled with 0.05 mm ⁇ zirconia beads to prepare a pigment dispersion 31 having a solid content of 15% by weight. Sex was evaluated. Table 6 shows the blending amount (g) of each raw material and the evaluation results.
- Example 43 57.00 g of pigment dispersion 1, 11.50 g of alkali-soluble polyimide resin solution A, and 2.25 g of dipentaerythritol hexaacrylate (hereinafter “DPHA”) as a compound having two or more radical polymerizable groups. ), 0.75 g of NCI-831 as a photopolymerization initiator, 11.50 g of PGMEA and 17.00 g of MBA as a solvent, and plugged tightly and stirred on a shaker for 30 minutes. A negative photosensitive composition 1 having a content of 15% by weight was prepared.
- DPHA dipentaerythritol hexaacrylate
- a double-sided alignment single-sided exposure device (Mask Aligner PEM-6M; manufactured by Union Optics), j-line (wavelength 313 nm), i-line (wavelength 365 nm), h-line (wavelength 405 nm) and g-line (wavelength)
- j-line wavelength 313 nm
- i-line wavelength 365 nm
- h-line wavelength 405 nm
- g-line wavelength
- Examples 44 to 62, Comparative Examples 41 to 63 In the same manner as in Example 43 except that pigment dispersions 2 to 44 shown in Tables 5 to 6 were used in place of pigment dispersion 1, negative photosensitive compositions 2 to 20 having a solid content of 15% by weight and 23 to 45 were prepared, and the light-shielding property of the cured film was evaluated. Tables 7 to 8 show the blending weight (g) of each raw material and the evaluation results.
- Examples 63 to 64 instead of pigment dispersion 1, pigment dispersion 2 shown in Table 5 was used, and DPCA-20 or DPCA-60 was used instead of DPHA.
- Negative photosensitive compositions 21 to 22 were prepared, cured films were prepared, and the light shielding properties of the cured films were evaluated. Table 7 shows the blending weight (g) of each raw material and the evaluation results.
- Example 65 20.00 g of pigment dispersion 15, 30.00 g of alkali-soluble polyimide resin solution A, 3.00 g of quinonediazide compound a, 30.00 g of PGMEA, and 17.00 g of MBA were mixed and sealed. Then, the mixture was stirred on a shaker for 30 minutes to prepare a positive photosensitive composition 1 having a solid content of 15% by weight. A cured film was prepared in the same manner as in Example 43, and the light shielding property of the cured film was evaluated. did. Table 9 shows the blending weight (g) of each raw material and the evaluation results.
- Example 66 Comparative Examples 64-65
- pigment dispersions 16, 27 and 43 shown in Tables 5 to 6 were used in the same manner as in Example 65, respectively, and positive photosensitive compositions 2 to 4 having a solid content of 15% by weight.
- Table 9 shows the blending weight (g) of each raw material and the evaluation results.
- FIG. 2 shows a manufacturing process of an organic EL display including a pixel dividing layer forming process.
- a 10 nm thick silver / copper alloy thin film (volume ratio 10: 1) is formed on the entire surface by sputtering, and etched to form a patterned metal reflection.
- Layer (4) was formed.
- an ITO transparent conductive film having a thickness of 10 nm is formed on the entire surface by sputtering and etched to form the second electrode (5) having the same pattern and an auxiliary electrode (6) as a lead electrode.
- “Clean” (registered trademark) 56 manufactured by Furuuchi Chemical Co., Ltd.
- Example 43 Using a spin coater (MS-A100; manufactured by Mikasa Co., Ltd.) on the surface of the electrode forming substrate, adjusting the number of rotations so that the final pixel division layer thickness is 1.0 ⁇ m.
- the negative photosensitive composition 1 obtained in Example 43 was applied to obtain a coating film.
- a hot plate SCW-636; manufactured by Dainippon Screen Mfg. Co., Ltd.
- the coating film was pre-baked at 100 ° C. for 120 seconds under atmospheric pressure to obtain a pre-baked film.
- the vertical / horizontal edge portions in the light shielding portion of the rectangular pattern formed on the negative exposure mask are parallel to the vertical / horizontal edge portions of the alkali-free glass substrate 3, respectively.
- a negative exposure mask is set on the pre-baked film, and a j-ray of an ultra-high pressure mercury lamp is passed through the negative exposure mask using a double-sided alignment single-side exposure device (Mask Aligner PEM-6M; manufactured by Union Optics).
- a pre-baked film is irradiated with a mixed line of (wavelength 313 nm), i-line (wavelength 365 nm), h-line (wavelength 405 nm) and g-line (wavelength 436 nm) at an exposure amount of 100 mJ / cm 2 (i-line conversion value), An exposed film was obtained.
- a small development apparatus for photolithography AD-2000; manufactured by Takizawa Sangyo Co., Ltd.
- development is performed with a 2.38 wt% TMAH aqueous solution for 60 seconds, and rinsed with deionized water for 30 seconds. Obtained.
- an organic EL display was manufactured using the pixel division layer forming substrate 10.
- the pixel division layer forming substrate 10 is rotated with respect to the deposition source under the deposition conditions with a vacuum degree of 1 ⁇ 10 ⁇ 3 Pa or less.
- the compound (HT-1) was formed to a thickness of 10 nm
- the compound (HT-2) was formed to a thickness of 50 nm.
- a compound (GH-1) as a host material and a compound (GD-1) as a dopant material were deposited to a thickness of 40 nm on the light-emitting layer.
- the compound (ET-1) and the compound (LiQ) were laminated in a volume ratio of 1: 1 with a thickness of 40 nm as an electron transport material.
- a silver / magnesium alloy (volume ratio: 10: 1) was deposited by 10 nm to obtain a first electrode (9). Then, it sealed by adhere
- the thickness referred to here is a display value of a crystal oscillation type film thickness monitor.
- Table 10 shows the results of evaluating the obtained organic EL display 1 by the above-described method.
- Example 68 to 88 Formation of a pixel division layer and organic EL display in the same manner as in Example 67 except that the negative photosensitive compositions 2 to 45 shown in Tables 7 to 8 were used in place of the negative photosensitive composition 1, respectively.
- the pixel division layer and the organic EL display were evaluated.
- the negative photosensitive compositions used and the evaluation results are shown in Tables 10 to 11.
- Example 89 In place of the negative photosensitive composition 1, in addition to using the positive photosensitive composition 1 shown in Table 9, in place of the negative exposure mask described above, a positive type in which the opening and the light shielding portion are reversed. Except for the exposure using an exposure mask, the pixel division layer and the organic EL display were formed in the same manner as in Example 67, and the pixel division layer and the organic EL display were evaluated. Table 10 shows the positive photosensitive composition used and the evaluation results.
- Example 90 Comparative Examples 89 to 90
- the pixel division layer and the organic EL display were formed in the same manner as in Example 67. Evaluation was performed.
- Tables 10 to 11 show the positive photosensitive compositions used and the evaluation results.
- Examples 67 to 90 compared with Comparative Examples 66 to 90, the generation of development residue and dark spots on the ITO in the opening is drastically reduced. This difference is due to the formation of a coating layer containing silica, metal oxide and / or metal hydroxide, which improves alkali resistance for benzodifuranone black pigments, while for perylene black pigments and azo black pigments. This is considered to be an effect manifested by improved dispersibility.
- the photosensitive composition of the present invention it is possible to form a pixel dividing layer by negative or positive photolithography while suppressing the generation of development residue, and to improve the light emission characteristics of the organic EL display. It can be seen that it can be improved.
- the black pigment of the present invention can be suitably used in applications where both alkali resistance and dispersibility are required, in addition to the excellent characteristics inherent in organic black pigments.
- it can be used as a TFT flattening layer, a black column spacer of a liquid crystal display, a near infrared transmission filter, an IR transmission film or bezel of a cover glass, a thermal barrier paint, a thermal barrier cement colorant, and the like.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Materials For Photolithography (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Optical Filters (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
Description
被覆率M(%)={L1/(L1+L2)}×100
L1:核の外周のうち、核が被覆層により覆われた部位の合計長さ(nm)
L2:核の外周のうち、核が露出した部位(界面と埋め込み樹脂が直接接する部位)の合計長さ(nm)
L1+L2:核の外周長さ(nm)。
本発明の黒色顔料の核を形成するベンゾジフラノン系黒色顔料は、酸性触媒下、2,5-ジヒドロベンゼン-1,4-二酢酸とイサチン類との環化反応により得ることができる。具体的には、例えば、2,5-ジヒドロキシベンゼン-1,4-二酢酸と、イサチンおよび/またはイサチン誘導体とを、それぞれ1:2のmol比で混合し、触媒としてp-トルエンスルホン酸一水和物を添加して、濃縮酢酸と水との混合溶媒中で撹拌して反応混合液を得て、これを還流温度に加熱して20時間以上撹拌する。次いで、液温が90℃に降下するまで、加熱を行わずに反応混合液を更に撹拌する。20~30℃の温度になるまで自然冷却した後、混合物を濾過し、濾物を冷濃縮酢酸により洗浄し、次いでメタノールにより洗浄し、反応物を得る。
(a)核を含む水性顔料懸濁液を調製する、調製工程
(b)pHが2以上7未満の範囲に維持された、核を含む水性顔料懸濁液に、アルカリ金属塩と、無機酸とを添加して、核の表面にシリカ、金属酸化物および/または金属水酸化物を含む被覆材を被覆する表面処理工程
(c)濾過および水洗を少なくとも1回行い、水溶性成分を除去する、洗浄工程
(d)再び水性顔料懸濁液とし、粉砕して二次凝集粒子径を所望の範囲にする、整粒工程
(e)イオン性不純物を除去する、イオントラップ工程
(f)水性顔料懸濁液中から黒色顔料を分離する、分離工程。
(a)核を含む水性顔料懸濁液を調製する、調製工程
(b)pHが2以上7未満の範囲に維持された、核を含む水性顔料懸濁液に、水溶性金属化合物を添加して、核の表面に金属酸化物および/または金属水酸化物を含む被覆材を被覆する表面処理工程
(c)濾過および水洗を少なくとも1回行い、水溶性成分を除去する、洗浄工程
(d)再び水性顔料懸濁液とし、粉砕して二次凝集粒子径を所望の範囲にする、整粒工程
(e)イオン性不純物を除去する、イオントラップ工程
(f)水性顔料懸濁液中から黒色顔料を分離する、分離工程。
(a)核を含む水性顔料懸濁液を調製する、調製工程
(b)pHが2以上7未満の範囲に維持された、核を含む水性顔料懸濁液に、4官能性金属アルコキシドを添加して、核の表面に、シリカ、金属酸化物および/または金属水酸化物を含む被覆材を被覆する表面処理工程
(c)濾過および水洗を少なくとも1回行い、水溶性成分を除去する、洗浄工程
(d)再び水性顔料懸濁液とし、粉砕して二次凝集粒子径を所望の範囲にする、整粒工程
(e)イオン性不純物を除去する、イオントラップ工程
(f)水性顔料懸濁液中から黒色顔料を分離する、分離工程。
本発明の感光性組成物は、前述の黒色顔料と、アルカリ可溶性樹脂と、感光剤とを含み、ネガ型感光性またはポジ型感光性のいずれかを有する。すなわち、本発明の感光性組成物は、ネガ型感光性組成物、ポジ型感光性組成物を包含する。
本発明の感光性組成物における、溶剤の含有量は、塗布工程における塗布膜の膜厚均一性の観点から、70重量%以上が好ましい。一方、溶剤の含有量は、顔料沈降を抑制する観点から、95重量%以下が好ましい。
OD値 = log10(I0/I)
I0:入射光強度
I:透過光強度。
まず、各実施例および比較例における評価方法について説明する。
(i)平均被覆率の評価
2液常温硬化型アクリル系透明樹脂(Heraeus Kulzer社製;Techovit4006)に、実施例1~20および比較例1~18により得られた黒色顔料を含浸して3時間25℃下で静置して反応硬化させて観測試料を得て、ダイヤモンド研磨紙を用いて観測試料をおおまかに機械研磨した後、イオンミリング装置(日立ハイテクノロジーズ社製;IM4000)を用いたアルゴンイオンビーム研磨により、観測試料の一部に平滑な断面を作製した。透過型電子顕微鏡(日立ハイテクノロジーズ社製;H9500;TEM)を用いて、加速電圧300kVの条件下、倍率100000倍に拡大して断面を観察し、核の外周をコントラスト差として認識できるよう表示モニターの明度とコントラストを調整して断面の撮像を得た。無作為に選択した黒色顔料100個の撮像について、下記式により黒色顔料の被覆率M(%)を求め、その数平均値を算出することにより、黒色顔料の平均被覆率N(%)を求めた。なお、核の外周と埋め込み樹脂の間に空隙が観られた黒色顔料については、観測試料の作製途中に埋め込み樹脂が十分に含浸しておらず被覆層の一部が研磨中に欠けて被覆率が低下した場合を含むため、平均被覆率N(%)の算出における対象から除外した。
被覆率M(%)={L1/(L1+L2)}×100
L1:核の外周のうち、核が被覆層により覆われた部位の合計長さ(nm)
L2:核の外周のうち、核が露出した部位(界面と埋め込み樹脂が直接接する部位)の合計長さ(nm)
L1+L2:核の外周長さ(nm)。
実施例1~20および比較例1~18により得られた黒色顔料0.5gを採取し、49.5gの2.38重量%TMAH水溶液(25℃下pH12)を入れたガラス瓶にそれぞれ浸漬し、蓋を閉めてシェーカー上で1分間撹拌した。その後、1時間静置後に再度1分間撹拌し、耐アルカリ性評価用顔料懸濁液を調製した。濾液に粒子成分が観測されなくなるまで耐アルカリ性評価用顔料懸濁液の濾過を繰り返した後、pH試験紙が中性を示すまで水洗し、フィルターにトラップされた濾物をアルミカップに移し、実温120℃のホットプレート上で30分間加熱して乾燥した。加熱後の重量を測定し、不溶解残分の重量とした。黒色顔料の初期重量(0.5g)から不溶解残分の重量を差し引いた値を、2.38重量%TMAH水溶液に対して溶解した成分の重量とし、この重量を黒色顔料の初期重量で除して、さらに100を乗じた値を、2.38重量%TMAH水溶液に溶解した黒色顔料の重量割合(重量%)とし、以下の判定基準に基づいて耐アルカリ性を評価し、AAおよびA~Cを合格、Dを不合格とした。
AA: 5重量%未満
A : 5重量%以上、10重量%未満
B : 10重量%以上、30重量%未満
C : 30重量%以上、50重量%未満
D : 50重量%以上
容積300mLのガラス瓶に、塩基性吸着基を有する高分子樹脂分散剤である、5.00gのSolsperse20000(三級アミノ基とポリエーテル構造とを分子内に有する分散剤)と、有機溶剤である、75.00gのPGMEAを混合した溶液を分散性評価用の標準分散媒とし、実施例1~20および比較例1~18により得られた、10.00gの黒色顔料をそれぞれ添加してディゾルバーで予備撹拌した後、200gの1.0mmφジルコニアビーズ(東レ(株)製;“トレセラム”(登録商標))を投入してガラス瓶を密栓し、ペイントコンディショナーを用いてバッチ式簡易分散処理を30分間行い、固形分15.0重量%の分散性評価用顔料分散液を得た。25℃に設定した恒温ボックス内で24時間静置後に分散性評価用顔料分散液を1.0g採取し、その平均分散粒子径(nm)を動的光散乱法粒度分布測定装置「SZ-100(HORIBA社製)」を用いて測定し、以下の判定基準に基づいて、同分散条件下における顔料固有の分散性を評価し、AAおよびA~Cを合格、Dを不合格とした。
AA: 200nm未満
A : 200nm以上、300nm未満
B : 300nm以上、500nm未満
C : 500nm以上、1000nm未満
D : 1000nm以上
実施例21~42および比較例19~40により得られた顔料分散液を、それぞれ顔料分散液の作製後1時間以内に、10gガラス瓶に密栓して、25℃に設定した恒温ボックス内で24時間静置後に1.0g採取してE型粘度計(コーンプレート型粘度計)のステージに滴下し、回転数50rpmの条件下せん断力を与えて3分後に示した粘度を初期粘度(mPa・s)とした。さらに25℃で7日間静置した後の粘度を同様の方法で測定して、これを経時粘度(mPa・s)として下記の式から増粘率(%)を求めた。増粘率(%)の絶対値が小さいほど安定性に優れるとし、以下の判定基準に基づいて分散安定性を評価し、A~Cを合格、D~Fを不合格とした。ただし、沈降物が発生した場合は増粘率に関わらず評価をEとした。顔料分散液の初期粘度あるいは経時粘度のいずれかが、100(mPa・s)を上回る場合は、測定不可能のため同条件での比較評価が困難であるため、沈降物の有無や、その増粘率に関わらず、評価をFとした。
増粘率(%)=(経時粘度-初期粘度)/初期粘度×100
なお、増粘率が正の値である場合は高粘度化、負の値である場合は低粘度化を示すが、実施例21~42および比較例19~40において、A~Dと評価したものに関しては、増粘率が負の値を示すものはなかった。
A : 5%未満
B : 5%以上、10%未満
C : 10%以上、30%未満
D : 30%以上
E : 沈降物が発生
F : 粘度が過度に高く、測定不可能
実施例43~66および比較例41~65により得られたテンパックスの表面に硬化膜を具備する遮光性評価基板について、光学濃度計(X-Rite社製;X-rite 361T)を用いて膜面側から面内3箇所においてOD値を測定し、その平均値の小数点第二位を四捨五入して、小数点第一位までの数値を求め、硬化膜の厚さ(μm)で除することにより、硬化膜の厚さ1.0μmあたりのOD値(OD/μm)を算出した。硬化膜を形成していないテンパックスの基板固有のOD値を別途測定した結果、0.00であったため、遮光性評価基板のOD値を、硬化膜のOD値とみなした。
硬化膜の厚さは、触針式膜厚測定装置(東京精密(株);サーフコム)を用いて、面内3箇所において測定し、その平均値の小数点第二位を四捨五入して、小数点第一位までの数値を求めた。
(i)開口部におけるITO上の現像残渣の評価
実施例67~90および比較例66~90により得られた画素分割層形成基板の中央部に位置する開口部10箇所を、光学顕微鏡を用いて倍率50倍に拡大して観察し、各開口部における長径0.1μm以上3.0μm未満の現像残渣の個数を計数した。開口部1箇所あたりに観測された現像残渣の平均個数から、以下の判定基準に基づいて評価し、AAおよびA~Cを合格、D~Eを不合格とした。ただし、長径3.0μmを超える残渣が観られた場合は残渣の平均個数に関わらず、Eと評価した。
AA: 現像残渣が全く観られない
A : 5個未満の残渣が観られる
B : 5個以上、10個未満の現像残渣が観られる
C : 10個以上、20個未満の現像残渣が観られる
D : 20個以上の現像残渣が観られる
E : 長径3.0μmを超える現像残渣が観られる。
実施例67~90および比較例66~90により得られた画素分割層形成基板の中央部に位置する開口部10箇所を、光学顕微鏡を用いて倍率50倍に拡大して観察し、パターンエッジ部における波打ちの幅を測長し、その最大幅W(μm)を以下の方法で算出した。
横方向において最小の線幅aおよび最大の線幅b、縦方向において最小の線幅cおよび最大の線幅dをそれぞれ測長して、以下の式からW1(μm)およびW2(μm)をそれぞれ算出し、W1(μm)とW2(μm)のうち大きいほうの値を、波打ちの最大幅W(μm)とした。なお、線幅a~dの測長時の測長角度は、画素分割層形成基板のエッジ部を基準として平行となるように行った。
(b-a)/2=W1
(d-c)/2=W2
A : 最大幅が、1.0μm未満
B : 最大幅が、1.0μm以上1.5μm未満
C : 最大幅が、1.5μm以上2.0μm未満
D : 最大幅が、2.0μm以上3.0μm未満
E : 最大幅が、3.0μm以上。
(i)ダークスポット(非発光部位)の評価
実施例67~90および比較例66~90により得られた有機ELディスプレイを、10mA/cm2の直流駆動により発光させて、縦16mm/横16mmのエリア内に形成した画素部において、中央部に位置する画素部10箇所を、倍率50倍でモニター上に拡大表示させて観察し、各開口部における長径0.1μm以上15.0μm未満の非発光部位の非発光部位の個数を計数した。開口部1箇所あたりに観測された非発光部位の平均個数から、以下の判定基準に基づいて評価し、AAおよびA~Cを合格、D~Eを不合格とした。
AA: ダークスポットが全く観られない
A : 5個未満のダークスポットが観られる
B : 5個以上、10個未満のダークスポットが観られる
C : 10個以上、20個未満のダークスポットが観られる
D : 20個以上のダークスポットが観られる
E : 画素部10箇所が全て発光しない。
実施例67~90および比較例66~90により得られた有機ELディスプレイを、10mA/cm2の直流駆動により発光させて、縦16mm/横16mmのエリア内に形成した画素部において、中央部に位置する画素部10箇所を、倍率50倍でモニター上に拡大表示させて観察し、輝度ムラの有無を、以下の判定基準に基づいて評価し、A~Cを合格、D~Fを不合格とした。
A : 輝度ムラが観られない
B : 輝度ムラが僅かに観られる
C : 輝度ムラが観られる
D : 輝度ムラが顕著に観られる
E : 画素部10箇所が全て発光しない
F : ダークスポットが多過ぎるため、正当な評価が困難。
核として、式(3)で表されるベンゾジフラノン系黒色顔料である、150gの“Irgaphor”(登録商標)Black S0100(表面未処理品;顔料表面のpH4.5;平均一次粒子径50nm;BASF社製;以下、「S0100」)を、2850gの脱イオン水を入れたガラス容器に投入してディゾルバーで撹拌し、水性顔料懸濁液を得た。これをチューブポンプで吸い上げ、0.4mmφジルコニアビーズ(東レ(株)製;“トレセラム”(登録商標))が充填された横型ビーズミル内に送液し、吐出量30mL/minで2パス分散を行った後、元のガラス容器内に全量を吐出させ、再びディゾルバーで撹拌した。pHメーターを、その先端電極部が、ガラス容器内で撹拌中の水性顔料懸濁液の液面から3~5cmの深さで漬かるようにセットし、得られた水性顔料懸濁液のpHを測定したところ、pH4.5(液温25℃)を示した。その後、撹拌しながら水性顔料懸濁液の液温を60℃に上げ、30分後に一旦撹拌を止めて、2分後ガラス容器の底に沈降堆積物が無いことを確認し、撹拌を再開した。
シリカの被覆量をSiO2換算値で10.0重量部とし、アルミナを被覆しなかった以外は、実施例1と同様の製造方法で平均一次粒子径54nmの黒色顔料2を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
シリカの被覆量をSiO2換算値で5.0重量部とし、アルミナの被覆量をAl2O3換算値で1.0重量部とした以外は、実施例1と同様の製造方法で平均一次粒子径53nmの黒色顔料3を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
シリカの被覆量をSiO2換算値で2.0重量部とし、アルミナを被覆しなかった以外は、実施例1と同様の製造方法で平均一次粒子径51nmの黒色顔料4を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
シリカの被覆量をSiO2換算値で20.0重量部とし、アルミナを被覆しなかった以外は、実施例1と同様の製造方法で平均一次粒子径66nmの黒色顔料5を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
シリカの被覆量をSiO2換算値で1.0重量部とし、アルミナを被覆しなかった以外は、実施例1と同様の製造方法で平均一次粒子径51nmの黒色顔料6を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
シリカの被覆量をSiO2換算値で21.0重量部とし、アルミナを被覆しなかった以外は、実施例1と同様の製造方法で平均一次粒子径71nmの黒色顔料7を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
シリカの被覆量をSiO2換算値で0.9重量部とし、アルミナを被覆しなかった以外は、実施例1と同様の製造方法で平均一次粒子径50nmの黒色顔料8を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
シリカを被覆せず、アルミナの被覆量をAl2O3換算値で5.0重量部とした以外は、実施例1と同様の製造方法で平均一次粒子径56nmの黒色顔料9を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
アルミナを被覆せず、以下の方法によりジルコニアを被覆し、その被覆量をZrO2換算値で1.0重量部とした以外は、実施例1と同様の製造方法で平均一次粒子径55nmの黒色顔料10を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
シリカおよびアルミナをそれぞれ個別に被覆する代わりに、ケイ酸ナトリウム水溶液、アルミン酸ナトリウム水溶液および硫酸を、水性顔料懸濁液に対して、pHが2以上7未満の範囲で維持されるよう並行添加して、SiO2換算値で5.0重量部、Al2O3換算値で1.0重量部の、シリカ-アルミナ複合酸化物を被覆した以外は、実施例1と同様の製造方法で平均一次粒子径54nmの黒色顔料11を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
シリカの被覆量をSiO2換算値で5.0重量部とし、アルミナを被覆しなかった以外は、実施例1と同様の製造方法で黒色顔料Aを得て、さらに、以下の方法により、核100.0重量部に対して、3-メタクリロキシプロピル基とケイ素原子とを含む基が3.0重量部となるよう、シリカ表面に対してシランカップリング処理を施した平均一次粒子径57nmの黒色顔料12を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
出発原料として、200.00gの2,5-ジヒドロキシベンゼン-1,4-二酢酸と、401.79gのイサチンスルホン酸とを混合(それぞれ1:2のmol比)し、触媒として152.27gのp-トルエンスルホン酸一水和物を添加して、60重量%酢酸水溶液中で撹拌して反応混合液を得て、これを120℃に加熱して還流させながら20時間以上撹拌した後、次いで、液温が90℃に降下するまで、加熱を行わずに反応混合液を更に撹拌した。25℃の温度になるまで自然冷却した後、混合物を濾過し、濾物を60重量%酢酸水溶液で洗浄し、次いでメタノールにより洗浄し、反応物を得た。反応物をジメチルスルホキシドに添加して、130℃で20時間撹拌して溶解反応物を溶解した後、液温が100℃に降下するまで、加熱を行わず更にジメチルスルホキシド溶液を撹拌することにより反応物を結晶化させて、粗大粒子を含む顔料クルードのジメチルスルホキシド溶液を得た。次いで、顔料クルードを濾過して、液温25℃下でジメチルスルホキシドにより洗浄した後に水洗を行い、得られた生成物を100Pa下、40℃で30時間減圧乾燥し、ボールミルを用いて平均一次粒子径が50nmとなるまで乾式で粉砕して整粒化することにより、一般式(1)中、R1、R2、R4、R5、R6、R7、R9およびR10が水素原子、R3およびR8がSO3Hであるベンゾジフラノン系黒色顔料である、黒色顔料13を得た。
200.00gの2,5-ジヒドロキシベンゼン-1,4-二酢酸と、285.01gの5-メチルイサチン(それぞれ1:2のmol比)を出発原料とした以外は、実施例13と同様の製法により、一般式(1)中、R1、R2、R4、R5、R6、R7、R9およびR10が水素原子、R3およびR8がCH3であるベンゾジフラノン系黒色顔料である、黒色顔料15を得た。
アルミナを被覆しなかったことに加えて、乾燥オーブン内での乾燥条件を280℃2時間に変更した以外は、実施例1と同様の製造方法で平均一次粒子径49nmの黒色顔料17を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
核として、150gの、式(6)と式(7)で表されるペリレン系黒色顔料の混合物(表面未処理品;顔料表面のpH8.0;平均一次粒子径55nm;3,4,9,10-ペリレンテトラカルボン酸ビスベンゾイミダゾール;cis-,trans-異性体の混合重量比率1:1;表中、「式(6)+式(7)」)を、2850gの水性分散媒A(脱イオン水:イソプロピルアルコール=重量比率80:20)を入れたガラス容器に投入してディゾルバーで撹拌し、水性顔料懸濁液を得た。これをチューブポンプで吸い上げ、0.4mmφジルコニアビーズ(東レ(株)製;“トレセラム”(登録商標))が充填された横型ビーズミル内に送液し、吐出量30mL/minで4パス分散を行った後、元のガラス容器内に全量を吐出させ、再びディゾルバーで撹拌した。
核として、147.00gの、前述の式(6)と式(7)で表されるペリレン系黒色顔料の混合物と、13.60gの顔料誘導体A(C.I.Pigment Blue15:3を母体顔料とする、スルホン酸基を有する銅フタロシアニン誘導体;銅フタロシアニン残基に対するスルホン酸基の平均置換基数1.8)とした以外は、実施例16と同様の製造方法で平均一次粒子径55nmの黒色顔料19を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。なお、黒色顔料19の製造過程において顔料誘導体Aの一部が消失し、最終的に得られた黒色顔料19が有する核の構成成分は、98.0重量部の、式(6)と式(7)で表されるペリレン系黒色顔料の混合物と、2.0重量部の顔料誘導体Aであった。また、黒色顔料19のシリカの被覆量は、核100.0重量部に対してSiO2換算値で10.0重量部であった。
実施例16と同様の操作で、核として、前述の式(6)および式(7)で表されるペリレン系黒色顔料の混合物を含む、水性顔料懸濁液を調製して、シリカの被覆量が核100.0重量部に対してSiO2換算値で3.0重量部となるように一回目の表面処理工程までを行い、核の表面に一層目のシリカを被覆させた黒色顔料Bを含む水性顔料懸濁液を得て、再度それを0.4mmφジルコニアビーズが充填された横型ビーズミル内に送液して、吐出量100mL/minで1パス分散を行い、さらに、1層目と2層目のシリカの被覆量の和が、核100重量部に対してSiO2換算値で10.0重量部となるように二回目の表面処理工程を行った。以降、濾過、水洗、不純物除去、乾燥、粉砕などの後工程を実施例16と同様の製造方法で行い、平均一次粒子径59nmの黒色顔料20を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。
式(9)で表されるアゾ系黒色顔料である、200.00gの“クロモファインブラック”(登録商標)A1103(顔料表面のpH7.5;平均一次粒子径430nm;大日精化工業(株)製;以下、「A1103」)と、水溶性無機塩として、2000.00gの塩化ナトリウムと、水溶性溶剤として、500gのジエチレングリコールとを混合し、液温を100~110℃に維持してニーダーで4時間混練し、黒色混練物を得た。次いで、黒色混練物に水を加えて、70℃に維持した3Lの温水中で水溶性成分を溶解させ、黒色濾物中の遊離塩素の含有量が100ppmを下回るまで水洗を繰り返した後に濾別し、平均一次粒子径が65nmである黒色顔料21を得た。以上がソルベントソルトミリングによる一次粒子径の微細化処理である。以降の工程は、核として黒色顔料21を用いた以外は、実施例16と同様の製造方法で黒色顔料21にシリカを被覆して、平均一次粒子径71nmの黒色顔料22を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。黒色顔料22のシリカの被覆量は、核100.0重量部に対してSiO2換算値で10.0重量部であった。
317.35g(1.00モル)の2-[3-[(4-アミノフェニル)アミノ]-1H-イソインドール-1-イリデン]-2-シアノ-N-メチルアセトアミドを、1000gのニトロベンゼン中に添加し、濃塩酸を加えて塩酸塩とし、亜硝酸ナトリウム水溶液を加えてジアゾ化し、ジアゾニウム塩溶液を調製した。別途、4.00gの水酸化ナトリウムを、1500.00gのメタノールに溶解させた液に、カップリング成分として、396.45g(1.00モル)のN-(2-メチル-4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミドを加えてカップリング溶液を調製した。前述のジアゾニウム塩溶液を15℃以下に保ち、そこに前述のカップリング溶液を添加した。酢酸ナトリウムを添加してpHを7.0に調整して1時間撹拌し、次いで25℃で2時間撹拌した後、40℃に昇温し、40℃を維持したまま3時間撹拌することにより、カップリング反応を完結させて反応物を得た。反応物を濾過して黒色濾物を得て、メタノールで洗浄し、水洗、乾燥して、顔料クルードを得た。次いで、実施例19と同様の方法でソルベントソルトミリングによる一次粒子径の微細化処理を行い、式(10)で表されるアゾ系黒色顔料である、平均一次粒子径が60nmの黒色顔料23を得た。以降の工程は、核として黒色顔料23を用いた以外は、実施例16と同様の製造方法で黒色顔料23にシリカを被覆して、平均一次粒子径が67nmの黒色顔料24を得た。平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表1に、評価結果を表2に示す。黒色顔料24のシリカの被覆量は、核100.0重量部に対してSiO2換算値で10.0重量部であった。
ベンゾジフラノン系黒色顔料である、S0100の耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
ベンゾジフラノン系黒色顔料である、黒色顔料13の耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
ベンゾジフラノン系黒色顔料である、黒色顔料15の耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
前述の式(6)と式(7)で表されるペリレン系黒色顔料の混合物の、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
アゾ系黒色顔料である、黒色顔料21の耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
アゾ系黒色顔料である、黒色顔料23の耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
核として、150gのS0100を、2850gの脱イオン水を入れたガラス容器に投入してディゾルバーで撹拌し、水性顔料懸濁液を得た。これをチューブポンプで吸い上げ、0.4mmφジルコニアビーズが充填された横型ビーズミル内に送液し、吐出量30mL/minで2パス分散を行った後、元のガラス容器内に全量を吐出させ、再びディゾルバーで撹拌した。その後、撹拌しながら水性顔料懸濁液の液温を60℃に上げ、30分後に一旦撹拌を止めて、2分後ガラス容器の底に沈降堆積物が無いことを確認し、撹拌を再開した。硫酸バリウムの被覆量が、核100重量部に対してBaSO4換算値で30.0重量部となるよう、撹拌を維持したまま水性顔料懸濁液に対して、固形分1.00重量%の水酸化バリウム水溶液と、0.001mol/Lの硫酸とを、pHが2以上7未満の範囲で維持されるようにそれぞれの添加速度を調整しながら並行添加し、核の表面に硫酸バリウムを析出させて被覆した。続いて、濾過および水洗作業を3回繰り返して水性顔料懸濁液中の水溶性不純物の一部を除去し、0.4mmφジルコニアビーズが充填された横型ビーズミル内に送液して、吐出量300mL/minで1パス分散を行った。さらに、イオン性不純物を除去するため、各10gの陽イオン交換樹脂と陰イオン交換樹脂(いずれもオルガノ製;アンバーライト)を水性顔料懸濁液に投入して12時間撹拌し、濾過して黒色濾物を得た。これを実温90℃の乾燥オーブン内で6時間、さらに200℃の乾燥オーブン内で30分間加熱し、ジェットミルを用いた乾式粉砕処理により整粒し、平均一次粒子径が62nmの黒色顔料25を得た。
核として、150gのS0100を、1000gの脱イオン水を入れたガラス容器に投入してディゾルバーで撹拌し、水性顔料懸濁液を得た。これをチューブポンプで吸い上げ、0.4mmφジルコニアビーズが充填された横型ビーズミル内に送液し、吐出量30mL/minで2パス分散を行った後、元のガラス容器内に全量を吐出させ、再びディゾルバーで撹拌した。その後、撹拌しながら水性顔料懸濁液の液温を60℃に上げ、30分後に一旦撹拌を止めて、2分後ガラス容器の底に沈降堆積物が無いことを確認し、撹拌を再開した。また、エポキシ樹脂である“jER”(登録商標)828(ビスフェノールA型エポキシ樹脂;三菱化学(株)製)とトルエンとを混合してエポキシ樹脂溶液A(固形分10重量%)を別途作製した。核100重量部に対してエポキシ樹脂の被覆量が10.0重量部となるように、水性顔料懸濁液に対してエポキシ樹脂溶液Aを徐々に添加した後、1時間撹拌して濾過し、黒色濾物を得て、実温90℃の乾燥オーブン内で6時間加熱して乾燥させ、さらに220℃の乾燥オーブン内で30分間加熱してエポキシ樹脂を熱硬化させた。被覆層同士のブロッキングが顕著であったため、連続式スイングハンマーミルで強粉砕した後、ジェットミルを用いた乾式粉砕処理により整粒し、平均一次粒子径が75nmの黒色顔料26を得た。
核として、150gのS0100を、2850gの酢酸エチルを入れたガラス容器に投入してディゾルバーで撹拌し、油性顔料懸濁液を得た。これをチューブポンプで吸い上げ、0.4mmφジルコニアビーズが充填された横型ビーズミル内に送液し、吐出量30mL/minで2パス分散を行った後、元のガラス容器内に全量を吐出させ、再びディゾルバーで撹拌した。その後、撹拌しながら油性顔料懸濁液の液温を60℃に上げ、30分後に一旦撹拌を止めて、2分後ガラス容器の底に沈降堆積物が無いことを確認し、油性顔料懸濁液を合成用フラスコ内に移した。合成用フラスコ内に窒素ガスを導入しながら撹拌し、液温を80℃に昇温して、核100重量部に対してアクリル樹脂の被覆量が10.0重量部となるように、被覆材源として、20.00gのメチルメタクリレートおよび5.00gのトリメチロールプロパントリアクリレート、熱重合開始剤として、0.50gのアゾビスイソブチロニトリルを添加し、80℃で6時間撹拌して熱重合させて、核の表面にアクリル樹脂を被覆した。被覆に関与しないゲル化物をゲルトラップフィルターで除去して、黒色濾物を得て、実温90℃の乾燥オーブン内で6時間乾燥させ、さらに230℃の乾燥オーブン内で3時間加熱して熱重合開始剤を分解して活性種を失活させ、かつ未反応モノマーを揮散させた。被覆層同士のブロッキングが顕著であったため、連続式スイングハンマーミルで強粉砕した後、ジェットミルを用いた乾式粉砕処理により整粒し、平均一次粒子径が63nmの黒色顔料27を得た。
水性顔料懸濁液の調製において、核として、前述の式(6)と式(7)で表されるペリレン系黒色顔料の混合物を用いたこと、水性分散媒Aを用いたこと、横型ビーズミルの分散条件を吐出量30mL/minで4パス分散を行ったこと以外は、比較例7と同様の製造方法で、平均一次粒子径が71nmの黒色顔料28を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
水性顔料懸濁液の調製において、核として、前述の式(6)と式(7)で表されるペリレン系黒色顔料の混合物を用いたこと、水性分散媒Aを用いたこと、横型ビーズミルの分散条件を吐出量30mL/minで4パス分散を行ったこと以外は、比較例8と同様の製造方法で、平均一次粒子径が73nmの黒色顔料29を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
油性顔料懸濁液の調製において、核として、前述の式(6)と式(7)で表されるペリレン系黒色顔料の混合物を用いたこと、横型ビーズミルの分散条件を吐出量30mL/minで4パス分散を行ったこと以外は、比較例9と同様の製造方法で、平均一次粒子径が62nmの黒色顔料30を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
水性顔料懸濁液の調製において、核として、黒色顔料21を用いたこと、水性分散媒Aを用いたこと、横型ビーズミルの分散条件を吐出量30mL/minで4パス分散を行ったこと以外は、比較例7と同様の製造方法で、平均一次粒子径が71nmの黒色顔料31を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
水性顔料懸濁液の調製において、核として、黒色顔料21を用いたこと、水性分散媒Aを用いたこと、横型ビーズミルの分散条件を吐出量30mL/minで4パス分散を行ったこと以外は、比較例8と同様の製造方法で、黒色顔料32を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
油性顔料懸濁液の調製において、核として、黒色顔料21を用いたこと、横型ビーズミルの分散条件を吐出量30mL/minで4パス分散を行ったこと以外は、比較例9と同様の製造方法で、平均一次粒子径が66nmの黒色顔料33を得て、平均被覆率を求め、耐アルカリ性および分散性を評価した。黒色顔料の構成成分比率を表3に、評価結果を表4に示す。
ベンゾジフラノン系黒色顔料、ペリレン系黒色顔料およびアゾ系黒色顔料のいずれにも属さない、無機黒色顔料である、平均一次粒子径が25nmのMA100(カーボンブラック;C.I.Pigment Black7;三菱化学(株)製;表中「MA100」)の耐アルカリ性および分散性を評価した。評価結果を表4に示す。
ベンゾジフラノン系黒色顔料、ペリレン系黒色顔料およびアゾ系黒色顔料のいずれにも属さない、有機紫色顔料である、平均一次粒子径が45nmのCromophtal Violet L5805(ジオキサジンバイオレット;C.I.Pigment Violet23;BASF社製;表中「L5805」)の耐アルカリ性および分散性を評価した。評価結果を表4に示す。
ベンゾジフラノン系黒色顔料、ペリレン系黒色顔料およびアゾ系黒色顔料のいずれにも属さない、有機青色顔料である、平均一次粒子径が54nmのEP193(銅フタロシアニンブルー;C.I.Pigment Blue15:6;DIC(株)製;表中「EP193」)の耐アルカリ性および分散性を評価した。評価結果を表4に示す。
乾燥窒素気流下、150.15gの2,2-ビス(3-アミノ-4-ヒドロキシフェニル)ヘキサフルオロプロパン(0.41mol)、6.20gの1,3-ビス(3-アミノプロピル)テトラメチルジシロキサン(0.02mol)、および、末端封止剤である13.65gの3-アミノフェノール(0.13mol)を、溶剤である500.00gのN-メチル-2-ピロリドン(以下、「NMP」)に溶解し、そこに155.10gのビス(3,4-ジカルボキシフェニル)エーテル二無水物(0.50mol)および150gのNMPを加えて20℃で1時間撹拌し、さらに水を除去しながら180℃で4時間撹拌した。反応終了後、反応液を10Lの水に投入し、生成した沈殿物を濾過して集め、水で5回洗浄し、80℃の真空乾燥機で20時間乾燥して、重量平均分子量(Mw)が25,000の、アルカリ可溶性ポリイミド樹脂粉末を合成し、これをPGMEAに溶解して、固形分30重量%のアルカリ可溶性ポリイミド樹脂溶液Aを得た。
分散樹脂溶液として45.00gのアルカリ可溶性ポリイミド樹脂溶液Aと、9.00gのSolsperse20000とを、223.50gのPGMEAに混合して10分間撹拌後、22.50gの黒色顔料1を投入して20分間撹拌して、0.4mmφのジルコニアビーズが充填された横型ビーズミルを用いて、30分間循環式で湿式メディア分散処理を行った。さらに微細化するため、0.05mmφのジルコニアビーズが充填された横型ビーズミルを用いて、1時間循環式で湿式メディア分散処理を行い、固形分15重量%の顔料分散液1を調製し、分散安定性を評価した。各原料の配合量(g)と評価結果を表5に示す。
黒色顔料1の代わりに表1および3に示す黒色顔料、S0100、前述の式(6)と式(7)で表されるペリレン系黒色顔料の混合物およびMA100をそれぞれ用いた以外は、実施例21と同様の製造方法で、顔料分散液2~14、17~25、27~30および32~44を調製し、分散安定性を評価した。各原料の配合量(g)と評価結果を表5、6に示す。
黒色顔料1の代わりに、黒色顔料2または黒色顔料18を用いて、Solsperse20000を用いなかった以外は実施例21と同様の製造方法で、顔料分散液15、16をそれぞれ調製し、分散安定性を評価した。各原料の配合量(g)と評価結果を表5に示す。
45.00gのアルカリ可溶性ポリイミド樹脂溶液Aと、9.00gのSolsperse20000とを、223.50gのPGMEAに混合して10分間撹拌後、20.25gのS0100と、シリカ微粒子である2.25gのAEROSIL200(エボニック社製)とを投入して20分間撹拌して、0.4mmφのジルコニアビーズが充填された横型ビーズミルを用いて、30分間循環式で湿式メディア分散処理を行った。さらに微細化するため、0.05mmφのジルコニアビーズが充填された横型ビーズミルを用いて、1時間循環式で湿式メディア分散処理を行い、固形分15重量%の顔料分散液26を調製し、分散安定性を評価した。各原料の配合量(g)と評価結果を表6に示す。
45.00gのアルカリ可溶性ポリイミド樹脂溶液Aと、9.00gのSolsperse20000とを、223.50gのPGMEAに混合して10分間撹拌後、21.15gの、前述の式(6)と式(7)で表されるペリレン系黒色顔料の混合物と、1.35gの顔料誘導体Aとを投入して20分間撹拌して、0.4mmφのジルコニアビーズが充填された横型ビーズミルを用いて、30分間循環式で湿式メディア分散処理を行った。さらに微細化するため、0.05mmφのジルコニアビーズが充填された横型ビーズミルを用いて、1時間循環式で湿式メディア分散処理を行い、固形分15重量%の顔料分散液31を調製し、分散安定性を評価した。各原料の配合量(g)と評価結果を表6に示す。
57.00gの顔料分散液1と、11.50gのアルカリ可溶性ポリイミド樹脂溶液Aと、2つ以上のラジカル重合性基を有する化合物として、2.25gのジペンタエリスリトールヘキサアクリレート(以下、「DPHA」)と、光重合開始剤として、0.75gのNCI-831と、溶剤として、11.50gのPGMEAおよび17.00gのMBAとを混合して、密栓して30分間シェーカー上で撹拌し、固形分15重量%のネガ型感光性組成物1を調製した。
各原料の配合量(g)と、硬化膜の遮光性(OD/μm)の評価結果を表7に示す。
顔料分散液1に代えて、表5~6に示す顔料分散液2~44を用いた以外は実施例43と同様の方法で、固形分15重量%のネガ型感光性組成物2~20および23~45を調製し、硬化膜の遮光性を評価した。各原料の配合重量(g)と評価結果を表7~8に示す。
(実施例63~64)
顔料分散液1に代えて、表5に示す顔料分散液2を用い、DPHAに代えて、DPCA-20またはDPCA-60を用いた以外は実施例43と同様の方法で、固形分15重量%のネガ型感光性組成物21~22を調製し、硬化膜を作製して、硬化膜の遮光性を評価した。各原料の配合重量(g)と評価結果を表7に示す。
乾燥窒素気流下、フェノール性水酸基を有する化合物である21.23g(0.05mol)のTrisP-PA(本州化学工業(株)製)と、33.58g(0.125mol)の5-ナフトキノンジアジドスルホニル酸クロリドを、450.00gの1,4-ジオキサンに溶解させ、室温にした。ここに、50.00gの1,4-ジオキサンと混合させた12.65g(0.125mol)のトリエチルアミンを系内が25~35℃となるよう維持しつつ滴下した。滴下後30℃で2時間攪拌した。次いで、トリエチルアミン塩を濾過し、濾液を水に投入し、析出した沈殿を濾過し回収した。この沈殿物を真空乾燥機で乾燥させ、構造式(13)で表されるキノンジアジド化合物aを得た。
20.00gの顔料分散液15と、30.00gのアルカリ可溶性ポリイミド樹脂溶液Aと、3.00gのキノンジアジド化合物aと、30.00gのPGMEAと、17.00gのMBAとを混合して、密栓して30分間シェーカー上で撹拌し、固形分15重量%のポジ型感光性組成物1を調製し、実施例43と同様の方法で、硬化膜を作製して、硬化膜の遮光性を評価した。各原料の配合重量(g)と評価結果を表9に示す。
顔料分散液1に代えて、表5~6に示す顔料分散液16、27、43をそれぞれ用いて実施例65と同様の方法で、固形分15重量%のポジ型感光性組成物2~4を調製し、実施例43と同様の方法で、硬化膜を作製して、硬化膜の遮光性を評価した。各原料の配合重量(g)と評価結果を表9に示す。
図2に、画素分割層の形成工程を含む有機ELディスプレイの作製工程を示す。
38mm×46mmの無アルカリガラス基板(3)の表面に、スパッタ法により、厚さ10nmの銀/銅合金の薄膜(体積比10:1)を全面成膜し、エッチングしてパターン状の金属反射層(4)を形成した。次いで、スパッタ法により、厚さ10nmのITO透明導電膜を全面成膜し、エッチングして同パターン状の第二電極(5)と、引き出し電極として補助電極(6)を形成した後、“セミコクリーン”(登録商標)56(フルウチ化学(株)製)で10分間超音波洗浄し、超純水で洗浄して、電極形成基板を得た。
ネガ型感光性組成物1に代えて、表7~8に示すネガ型感光性組成物2~45をそれぞれ用いた以外は、実施例67と同様の方法で画素分割層の形成および有機ELディスプレイの作製を行い、画素分割層および有機ELディスプレイの評価を行った。用いたネガ型感光性組成物とその評価結果を、表10~11に示す。
ネガ型感光性組成物1に代えて、表9に示すポジ型感光性組成物1を用いたことに加えて、前述のネガ型露光マスクに代えて、開口部と遮光部が反転したポジ型露光マスクを用いて露光したこと以外は、実施例67と同様の方法で画素分割層の形成および有機ELディスプレイの作製を行い、画素分割層および有機ELディスプレイの評価を行った。用いたポジ型感光性組成物とその評価結果を、表10に示す。
表9に示すポジ型感光性組成物2~4を用いたこと以外は、実施例67と同様の方法で画素分割層の形成および有機ELディスプレイの作製を行い、画素分割層および有機ELディスプレイの評価を行った。用いたポジ型感光性組成物とその評価結果を、表10~11に示す。
2 画素分割層
3 無アルカリガラス基板
4 金属反射層
5 第二電極(ITO電極)
6 補助電極(ITO電極)
7 画素分割層
8 有機EL層
9 第一電極
10 画素分割層形成基板
Claims (19)
- (a)ベンゾジフラノン系黒色顔料、ペリレン系黒色顔料、アゾ系黒色顔料およびそれらの異性体からなる群から選ばれる少なくとも1種の有機黒色顔料を含む核と、(b)シリカ、金属酸化物および/または金属水酸化物を含む被覆層とを有する黒色顔料。
- 前記核が、一般式(1)または(2)で表される、(a)ベンゾジフラノン系黒色顔料またはその異性体を含む、請求項1に記載の黒色顔料。
(一般式(1)および(2)中、R1およびR6は、それぞれ独立して、水素原子、CH3、CF3、フッ素原子または塩素原子を表す。R2、R3、R4、R5、R7、R8、R9、R10は、それぞれ独立して、水素原子、ハロゲン原子、炭素数1~12のアルキル基、炭素数1~12のシクロアルキル基、炭素数1~12のアルケニル基、炭素数1~12のシクロアルケニル基、炭素数1~12のアルキニル基、COOH、COOR11、COO-、CONH2、CONHR11、CONR11R12、CN、OH、OR11、OCOR11、OCONH2、OCONHR11、OCONR11R12、NO2、NH2、NHR11、NR11R12、NHCOR11、NR11COR12、N=CH2、N=CHR11、N=CR11R12、SH、SR11、SOR11、SO2R11、SO3R11、SO3H、SO3 -、SO2NH2、SO2NHR11またはSO2NR11R12を表す。R2およびR3、R3およびR4、R4およびR5、R7およびR8、R8およびR9、R9およびR10は直接結合またはO、S、NHもしくはNR11によって結合してもよい。R11およびR12は、それぞれ独立して、炭素数1~12のアルキル基、炭素数1~12のシクロアルキル基、炭素数1~12のアルケニル基、炭素数1~12のシクロアルケニル基または炭素数1~12のアルキニル基を表す。) - 前記金属酸化物がアルミナを含む、請求項1~3いずれか一項に記載の黒色顔料。
- 前記被覆層がシリカを含む、請求項1~4いずれか一項に記載の黒色顔料。
- 前記被覆層中のシリカの含有量が、前記核100重量部に対してSiO2換算値で1.0~20.0重量部である、請求項5に記載の黒色顔料。
- 前記被覆層が、ラジカル重合性基とケイ素原子とを含む基で表面修飾されたシリカ、金属酸化物および/または金属水酸化物を含む、請求項1~6いずれか一項に記載の黒色顔料。
- 請求項1~7いずれか一項に記載の黒色顔料と、分散剤と、溶剤とを含有する顔料分散液。
- 前記分散剤が、アルカリ可溶性樹脂を含む、請求項8記載の顔料分散液。
- 請求項1~7いずれか一項に記載の黒色顔料と、アルカリ可溶性樹脂と、感光剤とを含む、感光性組成物。
- 前記感光剤として、2つ以上のラジカル重合性基を有する化合物と、光重合開始剤とを含み、ネガ型感光性を有する、請求項10に記載の感光性組成物。
- 前記2つ以上のラジカル重合性基を有する化合物が、少なくとも3つのヒドロキシ基を有する化合物に由来する構造と、少なくとも3つのエチレン性不飽和二重結合基と、少なくとも1つの脂肪族鎖とを分子内に有する化合物を含み、該脂肪族鎖の平均分子量が40~500である、請求項11に記載の感光性組成物。
- 請求項10~13いずれか一項に記載の感光性組成物の硬化物からなる、硬化膜。
- 請求項10~13いずれか一項に記載の感光性組成物の硬化物からなる、有機ELディスプレイの画素分割層。
- 請求項14に記載の硬化膜を有する、有機ELディスプレイ。
- pHが2以上7未満の範囲に維持された、前記核を含む水性顔料懸濁液に、アルカリ金属ケイ酸塩と、無機酸とを添加して、前記核の表面にシリカを被覆する表面処理工程を含む、請求項5に記載の黒色顔料の製造方法。
- pHが2以上7未満の範囲に維持された、前記核を含む水性顔料懸濁液に、アルカリ金属アルミン酸塩と、無機酸とを添加して、前記核の表面に水酸化アルミニウムを被覆する表面処理工程を含む、請求項4に記載の黒色顔料の製造方法。
- 前記表面処理工程の後に、イオン交換樹脂を用いてイオン性不純物を除去する工程を含む、請求項17に記載の黒色顔料の製造方法。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17843563.2A EP3505573B1 (en) | 2016-08-24 | 2017-08-22 | Black pigment, method for producing same, pigment dispersion liquid, photosensitive composition and cured product of said photosensitive composition |
| US16/327,162 US10723884B2 (en) | 2016-08-24 | 2017-08-22 | Black pigment, method for producing same, pigment dispersion liquid, photosensitive composition and cured product of said photosensitive composition |
| CN202011297632.0A CN112375400B (zh) | 2016-08-24 | 2017-08-22 | 黑色颜料及其制造方法、颜料分散液、感光性组合物及其固化物 |
| KR1020187032022A KR102373037B1 (ko) | 2016-08-24 | 2017-08-22 | 흑색 안료와 그의 제조 방법, 안료 분산액, 감광성 조성물 및 그의 경화물 |
| JP2018503258A JP7010207B2 (ja) | 2016-08-24 | 2017-08-22 | 黒色顔料とその製造方法、顔料分散液、感光性組成物およびその硬化物 |
| CN201780050820.3A CN109642089B (zh) | 2016-08-24 | 2017-08-22 | 黑色颜料及其制造方法、颜料分散液、感光性组合物及其固化物 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-163659 | 2016-08-24 | ||
| JP2016163659 | 2016-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018038083A1 true WO2018038083A1 (ja) | 2018-03-01 |
Family
ID=61244912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2017/029878 Ceased WO2018038083A1 (ja) | 2016-08-24 | 2017-08-22 | 黒色顔料とその製造方法、顔料分散液、感光性組成物およびその硬化物 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US10723884B2 (ja) |
| EP (1) | EP3505573B1 (ja) |
| JP (1) | JP7010207B2 (ja) |
| KR (1) | KR102373037B1 (ja) |
| CN (2) | CN112375400B (ja) |
| TW (1) | TWI731148B (ja) |
| WO (1) | WO2018038083A1 (ja) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018109107A (ja) * | 2016-12-28 | 2018-07-12 | 新日鉄住金化学株式会社 | 着色ポリイミドフィルム、カバーレイフィルム、銅張積層板及び回路基板 |
| JP2019160473A (ja) * | 2018-03-09 | 2019-09-19 | 三菱ケミカル株式会社 | 有機電界発光素子隔壁形成用着色感光性組成物、隔壁、有機電界発光素子、画像表示装置及び照明 |
| JP2021177204A (ja) * | 2020-05-07 | 2021-11-11 | サカタインクス株式会社 | ブラックマトリックス用顔料分散組成物、およびブラックマトリックス用顔料分散レジスト組成物 |
| JP2022022537A (ja) * | 2020-06-26 | 2022-02-07 | 東レ株式会社 | 感光性組成物、硬化物および有機el表示装置 |
| JP2022065931A (ja) * | 2020-10-16 | 2022-04-28 | 山陽色素株式会社 | 黒色顔料分散体 |
| JP2022083711A (ja) * | 2020-11-25 | 2022-06-06 | サカタインクス株式会社 | ブラックマトリックス用顔料分散組成物、ブラックマトリックス用レジスト組成物、及び、ブラックマトリックス |
| WO2023067962A1 (ja) * | 2021-10-18 | 2023-04-27 | 東レ株式会社 | 着色樹脂組成物、着色膜、加飾基板 |
| WO2024004793A1 (ja) * | 2022-06-30 | 2024-01-04 | 富士フイルム株式会社 | 化合物、組成物、フィルム、着色組成物の製造方法、及び表示素子用積層体の製造方法 |
| WO2024038810A1 (ja) * | 2022-08-19 | 2024-02-22 | 東レ株式会社 | ポジ型感光性組成物、硬化膜、有機el表示装置、および色素 |
| WO2024070725A1 (ja) | 2022-09-28 | 2024-04-04 | 東レ株式会社 | 感光性組成物、硬化物、電子部品、及び硬化物の製造方法 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102178853B1 (ko) * | 2017-08-18 | 2020-11-13 | 주식회사 엘지화학 | 잉크젯용 적외선 투과 잉크 조성물, 이를 이용한 베젤 패턴의 형성방법, 이에 따라 제조한 베젤 패턴 및 이를 포함하는 디스플레이 기판 |
| US11940729B2 (en) * | 2019-12-02 | 2024-03-26 | Toray Industries, Inc. | Photosensitive composition, negative photosensitive composition, pixel division layer and organic EL display device |
| KR102586092B1 (ko) * | 2020-03-09 | 2023-10-05 | 삼성에스디아이 주식회사 | 감광성 수지 조성물, 이를 이용하여 제조된 감광성 수지막 및 디스플레이 장치 |
| WO2021205524A1 (ja) * | 2020-04-07 | 2021-10-14 | シャープ株式会社 | 表示装置、及び表示装置の製造方法 |
| CN112786813B (zh) * | 2021-02-05 | 2023-07-11 | 湖北长江新型显示产业创新中心有限公司 | 一种显示面板及显示装置 |
| JP7803280B2 (ja) * | 2021-10-18 | 2026-01-21 | 東レ株式会社 | 有機el表示装置 |
| CN118084741A (zh) * | 2024-03-29 | 2024-05-28 | 天津众泰材料科技有限公司 | 一种感光化合物tppa-pac的制备方法 |
| CN118956180A (zh) * | 2024-07-31 | 2024-11-15 | 山东凯瑞尔光电科技有限公司 | 一种低反射率黑色分散液及制备方法 |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5051527A (ja) * | 1973-09-10 | 1975-05-08 | ||
| JPS63120766A (ja) * | 1986-11-11 | 1988-05-25 | Mitsubishi Metal Corp | 被覆有機顔料およびその製造方法 |
| JPS6416871A (en) * | 1987-06-16 | 1989-01-20 | Ciba Geigy Ag | Organic pigment coated with metal oxide |
| JPH05232745A (ja) * | 1991-11-25 | 1993-09-10 | Xerox Corp | 着色粒子 |
| JPH09230131A (ja) * | 1996-02-21 | 1997-09-05 | Kansai Shin Gijutsu Kenkyusho:Kk | カラーフィルタ及びその製造方法 |
| US20020121228A1 (en) | 2000-12-26 | 2002-09-05 | Dainichiseika Color & Chem. Mfg. Co., Ltd. | Near-infrared transmitting black azo pigments |
| WO2005078023A2 (de) | 2004-02-11 | 2005-08-25 | Basf Aktiengesellschaft | Schwarze perylenpigmente |
| JP2008107530A (ja) * | 2006-10-25 | 2008-05-08 | Sumitomo Osaka Cement Co Ltd | 感光性着色組成物およびこれを用いた光学部材 |
| WO2009010521A2 (en) | 2007-07-19 | 2009-01-22 | Basf Se | Nir-inert substrates comprising bis-oxodihydroindolylen-benzodifuranones |
| JP2011515567A (ja) * | 2008-03-25 | 2011-05-19 | ゼロックス コーポレイション | シリカでカプセル化された有機ナノ顔料と同顔料の作製法 |
| JP2012515240A (ja) * | 2009-01-19 | 2012-07-05 | ビーエーエスエフ ソシエタス・ヨーロピア | 黒色顔料分散液 |
| JP2013254047A (ja) * | 2012-06-06 | 2013-12-19 | Fujifilm Corp | 感放射線性組成物、カラーフィルタ、カラーフィルタの製造方法 |
| JP2015525260A (ja) * | 2012-06-01 | 2015-09-03 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | 黒色着色剤混合物 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2120497T3 (es) * | 1991-10-18 | 1998-11-01 | Merck Patent Gmbh | Pigmentos en forma de plaquetas teñidos y revestidos. |
| DE10228186A1 (de) * | 2002-06-24 | 2004-01-22 | Merck Patent Gmbh | UV-stabilisierte Partikel |
| FR2908153B1 (fr) * | 2006-11-07 | 2011-05-13 | Snecma | Dispositif d'accrochage d'un distributeur (8) d'une turbine, turbine les comportant, et moteur d'aeronef en etant equipe |
| CN103034079B (zh) * | 2012-12-27 | 2015-04-22 | 深圳市乐普泰科技股份有限公司 | 具有密集电荷核壳结构的悬浮聚合墨粉制备方法 |
| JP6489008B2 (ja) * | 2013-09-25 | 2019-03-27 | 三菱ケミカル株式会社 | 感光性着色組成物、着色スペーサー及び画像表示装置 |
| WO2016143740A1 (ja) * | 2015-03-11 | 2016-09-15 | 東レ株式会社 | 有機el表示装置、およびその製造方法 |
-
2017
- 2017-08-22 TW TW106128419A patent/TWI731148B/zh active
- 2017-08-22 KR KR1020187032022A patent/KR102373037B1/ko active Active
- 2017-08-22 JP JP2018503258A patent/JP7010207B2/ja active Active
- 2017-08-22 CN CN202011297632.0A patent/CN112375400B/zh active Active
- 2017-08-22 CN CN201780050820.3A patent/CN109642089B/zh active Active
- 2017-08-22 WO PCT/JP2017/029878 patent/WO2018038083A1/ja not_active Ceased
- 2017-08-22 EP EP17843563.2A patent/EP3505573B1/en active Active
- 2017-08-22 US US16/327,162 patent/US10723884B2/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5051527A (ja) * | 1973-09-10 | 1975-05-08 | ||
| JPS63120766A (ja) * | 1986-11-11 | 1988-05-25 | Mitsubishi Metal Corp | 被覆有機顔料およびその製造方法 |
| JPS6416871A (en) * | 1987-06-16 | 1989-01-20 | Ciba Geigy Ag | Organic pigment coated with metal oxide |
| JPH05232745A (ja) * | 1991-11-25 | 1993-09-10 | Xerox Corp | 着色粒子 |
| JPH09230131A (ja) * | 1996-02-21 | 1997-09-05 | Kansai Shin Gijutsu Kenkyusho:Kk | カラーフィルタ及びその製造方法 |
| US20020121228A1 (en) | 2000-12-26 | 2002-09-05 | Dainichiseika Color & Chem. Mfg. Co., Ltd. | Near-infrared transmitting black azo pigments |
| WO2005078023A2 (de) | 2004-02-11 | 2005-08-25 | Basf Aktiengesellschaft | Schwarze perylenpigmente |
| JP2008107530A (ja) * | 2006-10-25 | 2008-05-08 | Sumitomo Osaka Cement Co Ltd | 感光性着色組成物およびこれを用いた光学部材 |
| WO2009010521A2 (en) | 2007-07-19 | 2009-01-22 | Basf Se | Nir-inert substrates comprising bis-oxodihydroindolylen-benzodifuranones |
| JP2010534726A (ja) * | 2007-07-19 | 2010-11-11 | ビーエーエスエフ ソシエタス・ヨーロピア | ビス−オキソジヒドロインドリレン−ベンゾジフラノンを含むnir不活性基体 |
| JP2011515567A (ja) * | 2008-03-25 | 2011-05-19 | ゼロックス コーポレイション | シリカでカプセル化された有機ナノ顔料と同顔料の作製法 |
| JP2012515240A (ja) * | 2009-01-19 | 2012-07-05 | ビーエーエスエフ ソシエタス・ヨーロピア | 黒色顔料分散液 |
| JP2015525260A (ja) * | 2012-06-01 | 2015-09-03 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | 黒色着色剤混合物 |
| JP2013254047A (ja) * | 2012-06-06 | 2013-12-19 | Fujifilm Corp | 感放射線性組成物、カラーフィルタ、カラーフィルタの製造方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3505573A4 |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6991712B2 (ja) | 2016-12-28 | 2022-01-12 | 日鉄ケミカル&マテリアル株式会社 | 着色ポリイミドフィルム、カバーレイフィルム、銅張積層板及び回路基板 |
| JP2018109107A (ja) * | 2016-12-28 | 2018-07-12 | 新日鉄住金化学株式会社 | 着色ポリイミドフィルム、カバーレイフィルム、銅張積層板及び回路基板 |
| JP2019160473A (ja) * | 2018-03-09 | 2019-09-19 | 三菱ケミカル株式会社 | 有機電界発光素子隔壁形成用着色感光性組成物、隔壁、有機電界発光素子、画像表示装置及び照明 |
| JP7479189B2 (ja) | 2020-05-07 | 2024-05-08 | サカタインクス株式会社 | ブラックマトリックス用顔料分散組成物、およびブラックマトリックス用顔料分散レジスト組成物 |
| JP2021177204A (ja) * | 2020-05-07 | 2021-11-11 | サカタインクス株式会社 | ブラックマトリックス用顔料分散組成物、およびブラックマトリックス用顔料分散レジスト組成物 |
| JP2022022537A (ja) * | 2020-06-26 | 2022-02-07 | 東レ株式会社 | 感光性組成物、硬化物および有機el表示装置 |
| JP7592989B2 (ja) | 2020-06-26 | 2024-12-03 | 東レ株式会社 | 感光性組成物、硬化物および有機el表示装置 |
| JP2022065931A (ja) * | 2020-10-16 | 2022-04-28 | 山陽色素株式会社 | 黒色顔料分散体 |
| JP7625243B2 (ja) | 2020-10-16 | 2025-02-03 | 山陽色素株式会社 | 黒色顔料分散体 |
| JP2022083711A (ja) * | 2020-11-25 | 2022-06-06 | サカタインクス株式会社 | ブラックマトリックス用顔料分散組成物、ブラックマトリックス用レジスト組成物、及び、ブラックマトリックス |
| JP7569209B2 (ja) | 2020-11-25 | 2024-10-17 | サカタインクス株式会社 | ブラックマトリックス用顔料分散組成物、ブラックマトリックス用レジスト組成物、及び、ブラックマトリックス |
| WO2023067962A1 (ja) * | 2021-10-18 | 2023-04-27 | 東レ株式会社 | 着色樹脂組成物、着色膜、加飾基板 |
| JPWO2023067962A1 (ja) * | 2021-10-18 | 2023-04-27 | ||
| JP7743839B2 (ja) | 2021-10-18 | 2025-09-25 | 東レ株式会社 | 着色樹脂組成物、着色膜、加飾基板 |
| WO2024004793A1 (ja) * | 2022-06-30 | 2024-01-04 | 富士フイルム株式会社 | 化合物、組成物、フィルム、着色組成物の製造方法、及び表示素子用積層体の製造方法 |
| WO2024038810A1 (ja) * | 2022-08-19 | 2024-02-22 | 東レ株式会社 | ポジ型感光性組成物、硬化膜、有機el表示装置、および色素 |
| WO2024070725A1 (ja) | 2022-09-28 | 2024-04-04 | 東レ株式会社 | 感光性組成物、硬化物、電子部品、及び硬化物の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102373037B1 (ko) | 2022-03-11 |
| TWI731148B (zh) | 2021-06-21 |
| CN109642089A (zh) | 2019-04-16 |
| KR20190041965A (ko) | 2019-04-23 |
| CN112375400B (zh) | 2022-09-09 |
| EP3505573A4 (en) | 2020-04-29 |
| CN109642089B (zh) | 2020-12-01 |
| JPWO2018038083A1 (ja) | 2019-06-20 |
| EP3505573A1 (en) | 2019-07-03 |
| CN112375400A (zh) | 2021-02-19 |
| JP7010207B2 (ja) | 2022-01-26 |
| EP3505573B1 (en) | 2025-10-22 |
| US10723884B2 (en) | 2020-07-28 |
| TW201815981A (zh) | 2018-05-01 |
| US20190218396A1 (en) | 2019-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7010207B2 (ja) | 黒色顔料とその製造方法、顔料分散液、感光性組成物およびその硬化物 | |
| JP7234631B2 (ja) | ネガ型感光性樹脂組成物、硬化膜、硬化膜を具備する素子及び有機elディスプレイ、並びにその製造方法 | |
| JP6954273B2 (ja) | 感光性組成物、硬化膜および有機el表示装置 | |
| US11822243B2 (en) | Negative-type photosensitive resin composition, cured film, element and display device provided with cured film, and production method therefor | |
| JP6417941B2 (ja) | ブラックマトリクス基板 | |
| US11360386B2 (en) | Organic EL display device | |
| JP5577659B2 (ja) | 感光性黒色樹脂組成物、樹脂ブラックマトリクス基板、カラーフィルター基板および液晶表示装置 | |
| JPWO2019065359A1 (ja) | 有機el表示装置、ならびに画素分割層および平坦化層の形成方法 | |
| KR102892713B1 (ko) | 유기 el 표시장치 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 2018503258 Country of ref document: JP |
|
| ENP | Entry into the national phase |
Ref document number: 20187032022 Country of ref document: KR Kind code of ref document: A |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17843563 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2017843563 Country of ref document: EP Effective date: 20190325 |
|
| WWG | Wipo information: grant in national office |
Ref document number: 2017843563 Country of ref document: EP |