CN1834704A - Coloring composition for color filter and color filter - Google Patents
Coloring composition for color filter and color filter Download PDFInfo
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- CN1834704A CN1834704A CNA2006100573329A CN200610057332A CN1834704A CN 1834704 A CN1834704 A CN 1834704A CN A2006100573329 A CNA2006100573329 A CN A2006100573329A CN 200610057332 A CN200610057332 A CN 200610057332A CN 1834704 A CN1834704 A CN 1834704A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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Abstract
The invention discloses a color compound and relative color filter, while said color compound is hard to be solidified on be coated at the top of coat liquid outlet, with better self-dissolve property. The color filter has filter node and/or black matrix filter on the base plate. Wherein, the color compound comprises: color material carrier, color material, unsaturated higher fatty acid; while the carrier is formed by transparent resin, its fore-body or the mixture of them.
Description
Technical field
The color filter that the present invention relates to be used to form the coloured composition of filter section and black matrix and use this coloured composition, described filter section and black matrix are formed in the color filter that uses in color liquid crystal display arrangement, the colour pick-up tube element etc.
Background technology
In the manufacture process of the color filter that constitutes LCD (LCD), coating fluid need be coated on the transparency carrier, and form the uniform coating of about 1～3 μ m of thickness when dry.As coating process,, studying mould coating (die coating) method along with the maximization of substrate in recent years.Compare with method of spin coating in the past, the advantage that the mould rubbing method has is, the homogeneity excellence of coating film thickness, and the less wastage of coating fluid, and the supply circuit of coating fluid is enclosed system until the dispense tip top.
But, for the mould rubbing method, because slit opening portion on the dispense tip top, coating fluid is exposed in the extraneous gas, therefore be easy to generate drying, the curing of coating fluid on the dispense tip top, the solidfied material of coating fluid becomes the reason of stopping up gap nozzle and producing the longitudinal stripe spot of filming (vertical coating striped of coating direction) that is coated on the transparency carrier.
In addition, the solidfied material of coating fluid breaks away from from the dispense tip top, brings in the filming after the coating as foreign matter sometimes, thereby produces the defective that the coating quality reduces.And then when producing this defective, most cases need be pulled down dispense tip from device body, decompose cleaning.When decomposing cleaning,, wait in expectation and aspect throughput rate, improve owing to stop therefore can not to ignore the reduction of work efficiency to recovering to need considerable time from device.
Method as the solidfied material that prevents to produce coating fluid, the method (opening the 2002-23352 communique with reference to the spy) of the coating fluid of the favorable solubility that uses solidfied material is disclosed so far, but have also that selectable solvent is defined, dispersion stabilization reduces, coating fluid in time tackify to the problems such as influence of throughput rate.
Summary of the invention
Thereby, the object of the present invention is to provide coating fluid discharge opening top ends to be difficult to solidify at the apparatus for coating of mould coating method, and when solidifying from dissolubility color composition for color filter that is also excellent, that be difficult to produce coating defects.
In addition, the object of the present invention is to provide and be not coated with the color filter that striped spot, foreign matter such as adhere at defective with filter section and/or black matrix.
Color composition for color filter of the present invention is characterized in that, contains coloured material carrier, coloured material, unsaturated high-grade fatty acid, and described coloured material carrier is made of transparent resin, its presoma or their potpourri.
Color filter of the present invention is characterized in that, has substrate and the filter section that is arranged on the substrate, and at least a portion of described filter section is used color composition for color filter of the present invention and formed.
In addition, color filter of the present invention is characterized in that, has substrate, is arranged on black matrix and filter section on the substrate, and described black matrix uses color composition for color filter of the present invention and forms.
The theme of applying for open and on March 15th, 2005 of the application of being put down in writing for special Willing 2005-072780 number is associated, and its disclosure is quoted at this by reference.
Embodiment
At first, explain color composition for color filter of the present invention.
Color composition for color filter of the present invention contains coloured material carrier, coloured material, the unsaturated high-grade fatty acid that is made of transparent resin, its presoma or their potpourri, is suitable for using the apparatus for coating of mould coating method to make color filter.
The coloured material carrier that contains in color composition for color filter of the present invention is made of transparent resin, its presoma or their potpourri.At this, with respect to 100 weight portion coloured materials, the coloured material carrier can preferably use the amount of 30～700 weight portions, more preferably uses the amount of 60～450 weight portions.
Transparent resin equals 80% for transmitance in the long zone of all-wave of 400～700nm of visible region is preferably greater than, more preferably greater than the resin that equals 95%.As transparent resin, can enumerate thermoplastic resin, thermoset resin and photoresist.As its presoma, can enumerate by the irradiation radioactive ray and can solidify monomer or the oligomer that generates transparent resin, these materials can use separately or mix more than 2 kinds or 2 kinds and use.
As thermoplastic resin, for example can enumerating, butyral resin, styrene-maleic acid copolymer, haloflex, chlorinated polypropylene, Polyvinylchloride, vinyl chloride-vinyl acetate copolymer, polyvinyl acetate (PVA), polyurethanes resin, vibrin, acrylic resin, alkyd resin, polystyrene, polyamide, rubber are that resin, thermoprene are resin, cellulose family, tygon, polybutadiene, polyimide resin etc.In addition, as thermoset resin, can enumerate for example epoxy resin, benzo triamido cyanate resin, Abietyl modified maleic acid resin, Abietyl modified fumaric resin, melamine resin, carbamide resin, phenolics etc.
As photoresist; can use the following resin that obtains: make have hydroxyl, carboxyl, the substituent macromolecule of amino isoreactivity with have isocyanate group, aldehyde radical, substituent (methyl) acrylic compounds of epoxy radicals isoreactivity or cinnamic acid reaction, in this macromolecule, import photocrosslinking reaction groups such as (methyl) acryloyl group, styryl.In addition, also can use (methyl) acrylic compounds of having a hydroxyl by (methyl) hydroxyalkyl acrylate etc. that styrene-maleic anhydride copolymer or alpha-olefin-copolymer-maleic anhydride etc. is contained the resin that the macromolecule half esterization of acid anhydrides obtains.
Monomer and oligomer as the presoma of transparent resin, can enumerate (methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) 2-Hydroxy ethyl acrylate, (methyl) acrylic acid-2-hydroxy propyl ester, (methyl) cyclohexyl acrylate, (methyl) senecioate-carboxyl ethyl ester, two (methyl) polyalkylene glycol acrylate ester, two (methyl) acrylic acid-1,6-hexanediol ester, two (methyl) acrylic acid triglycol ester, two (methyl) acrylic acid tripropylene glycol ester, three (methyl) acrylic acid trihydroxymethylpropanyl ester, three (methyl) acrylic acid pentaerythritol ester, 1,6-hexanediol diglycidyl ether two (methyl) acrylate, bisphenol A diglycidyl ether two (methyl) acrylate, neopentylglycol diglycidyl ether two (methyl) acrylate, six (methyl) acrylic acid dipentaerythritol ester, (methyl) acrylic acid three ring esters in the last of the ten Heavenly stems, the esterification of acrylic ester, (methyl) acrylate of methylolation melamine, epoxy (methyl) acrylate, various acrylate and methacrylates such as ammonia ester acrylate, (methyl) acrylic acid, styrene, vinyl acetate, the hydroxyethyl vinethene, the ethylene glycol bisthioglycolate vinethene, pentaerythrite triethylene ether, (methyl) acrylamide, N-methylol (methyl) acrylamide, the N-vinyl formamide, vinyl cyanide etc.These materials can separately or mix more than 2 kinds or 2 kinds and use.
As the coloured material that in color composition for color filter of the present invention, contains, can be separately or mix more than 2 kinds or 2 kinds and use the pigment of organic or inorganic.As pigment optimization color emissivity height and the high pigment of thermotolerance, the high pigment of particularly heat-resisting decomposability uses organic pigment usually.Below represent can be used for the concrete example of the organic pigment in the coloured composition of the present invention with the color index sequence number.
In forming the red colored composition that red filter saves, for example can use C.I. paratonere 7,9,14,41,48:1,48:2,48:3,48:4,81:1,81:2,81:3,97,122,123,146,149,168,177,178,180,184,185,187,192,200,202,208,210,215,216,217,220,223,224,226,227,228,240,246,254,255,264, red pigments such as 272.In red composition, can and use yellow uitramarine, orange pigment.
In the yellow coloring composition that the formation yellow filter is saved, can use for example C.I. pigment yellow 1,2,3,4,5,6,10,12,13,14,15,16,17,18,20,24,31,32,34,35,35:1,36,36:1,37,37:1,40,42,43,53,55,60,61,62,63,65,73,74,77,81,83,86,93,94,95,97,98,100,101,104,106,108,109,110,113,114,115,116,117,118,119,120,123,125,126,127,128,129,137,138,139,147,148,150,151,152,153,154,155,156,161,162,164,166,167,168,169,170,171,172,173,174,175,176,177,179,180,181,182,185,187,188,193,194,199,213,214 yellow uitramarines such as grade.
In forming the orange coloured composition that orange filter section uses, for example can use C.I. pigment orange 36,43,51,55,59,61,71, orange pigments such as 73.
In forming the green coloring composition that green filter saves, for example can use C.I. pigment Green 7,10,36, viridine greens such as 37.In green composite, can and use yellow uitramarine.
In forming the blue colored composition that blue electric-wave filter saves, for example can use C.I. alizarol saphirol, 15,15:1,15:2,15:3,15:4,15:6,16,22,60, blue pigments such as 64.In blue composition can and with C.I. pigment violet 1, violet pigments such as 19,23,27,29,30,32,37,40,42,50.
In forming the cyan coloured composition that the cyan filter section uses, can use for example C.I. pigment blue 15: 1,15:2,15:4,15:3,15:6,16, blue pigments such as 81.
In the magenta coloured composition that formation magenta filter section is used, can use for example violet pigment and red pigment such as C.I. pigment violet 1,19, C.I. paratonere 144,146,177,169,81.In the magenta composition, can and use yellow uitramarine.
In addition, in forming the black colorant composition that black matrix uses, for example can use that carbon black, titanium are black, nigrosine, anthraquinone class black pigment, perylene kinds black pigment, can use C.I. pigment black 6,7,12,20,31,32 etc. particularly.In these pigment, preferred carbon black.Carbon black also can carry out surface treatment with resin etc.
As other inorganic pigments, can enumerate titanium dioxide, barium sulphate, zinc paste, lead sulfate, yellow lead, zinc yellow, colcother (red iron oxide (III)), cadmium red, ultramarine, dark blue, chrome oxide green, cobalt green, umber, synthesize iron oxide black etc.Guarantee good coating, sensitivity, development etc. when obtaining the balance of chroma and brightness, inorganic pigment can be used in combination with organic pigment.
In color composition for color filter of the present invention,, in not reducing stable on heating scope, can contain dyestuff in order to mix colours.
The unsaturated high-grade fatty acid that contains in the color composition for color filter of the present invention is to have at least one unsaturated link, carbon number monocarboxylic acid how.When higher fatty acid contained unsaturated link in structure, even carbon number is identical, fusing point also can reduce.
The carbon number of unsaturated high-grade fatty acid is preferred 10～24, and more preferably 16～20.Carbon number is little to the compatibility of pigment less than 10 unsaturated high-grade fatty acid, and when using carbon number less than 10 unsaturated high-grade fatty acid, the dissolubility again of the solidfied material of coloured composition reduces sometimes.In addition, when using carbon number greater than 24 unsaturated high-grade fatty acid, the rate of drying of filming reduces, and influences throughput rate sometimes, and because the price height of unsaturated high-grade fatty acid is disadvantageous economically.
In addition, separate out on filming in order to prevent unsaturated high-grade fatty acid, the fusing point of unsaturated high-grade fatty acid is preferably-20～50 ℃, and more preferably 5～50 ℃, further preferably near 10～40 ℃ of room temperature.
As unsaturated high-grade fatty acid, can enumerate isomeride, linoleic acid (fusing point :-5 ℃), leukotrienes (fusing point :-11 ℃), sinapic acid (fusing point: 34 ℃) of for example oleic acid (fusing point: 16 ℃), petroselic acid (fusing point: 33 ℃), vaccenic acid octadecenoic acids such as (fusing points: 39 ℃) etc.
With respect to 100 weight portion coloured materials, the content of unsaturated high-grade fatty acid is preferably 0.3～45.0 weight portion, more preferably 0.75～25.0 weight portion.When the content of unsaturated high-grade fatty acid is less than 0.3 weight portion, the dissolubility again of solidfied material be can not get effect of sufficient sometimes.In addition, during more than 45.0 weight portions, the rate of drying of filming reduces, and produces sticking twining property (tackiness) sometimes.
When being dispersed in coloured material carrier as coloured material pigment, can suit to use resin type pigment dispersing agent, pigment derivative, surfactant etc. to disperse auxiliary agent.By using dispersing aid, the dispersing of pigments excellence, the effect of aggegation is obvious again to prevent pigment after the dispersion, when therefore using the coloured composition that pigment dispersing is formed by dispersing aid in the coloured material carrier, can obtain the color filter of transparency excellence.
With respect to 100 weight portion coloured materials, dispersing aid can use the amount of 0.1～40 weight portion.
The resin type pigment dispersing agent has to be had the pigment compatibility position of adsorption property and has the position of intermiscibility with pigment carrier pigment, its performance adsorption pigment and make the effect of pigment stable dispersion in photoresist.As the resin type pigment dispersing agent, can use particularly except that as polycarboxylates such as the polyurethane the resin of above-mentioned transparent resin, polyacrylate, unsaturated polyester acid amides, poly carboxylic acid, poly carboxylic acid (part) amine salt, poly carboxylic acid ammonium salt, poly carboxylic acid alkylamine salt, polysiloxane, long-chain polyaminoamide phosphate, hydroxyl polycarboxylate, they modifier, by gathering (low-grade alkylidene imines) and having the pet reaction of free carboxyl and the acid amides that forms and salt thereof etc.In addition, can use water soluble resins such as (methyl) acrylic acid-styrol copolymer, (methyl) acrylic acid-(methyl) acrylate copolymer, styrene-maleic acid copolymer, polyvinyl alcohol (PVA), polyvinylpyrrolidone or water-soluble high-molecular compound, polyesters, modified polyacrylate, ethylene oxide/propylene oxide addition product etc.These materials can separately or mix more than 2 kinds or 2 kinds and use.
Pigment derivative is to import substituent compound to organic pigment.Organic pigment also comprises flaxen aromatic series polycyclic compunds such as the naphthalene system that is commonly called pigment, anthraquinone system.As pigment derivative, can use the spy to open the pigment derivative of record in clear 63-305173 communique, special public clear 57-15620 communique, special public clear 59-40172 communique, special public clear 63-17102 communique, the special fair 5-9469 communique etc., these materials can separately or mix more than 2 kinds or 2 kinds and use.
As surfactant, can enumerate alkali metal salt, sodium alkyl naphthalene sulfonate, alkyl diphenyl ether disulphonic acid sodium, lauryl sulfate monoethanolamine, triethanolamine lauryl sulfate, Texapon Special, stearic acid monoethanolamine, odium stearate, the NaLS of polyoxyethylene alkyl ether sulfate salt, neopelex, styrene-propene acid copolymer, the anionic surface active agent such as monoethanolamine of styrene-propene acid copolymer; Non-ionics such as polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene nonylplenyl ether, Tween-60, polyethylene glycol monolaurate; Cationic surfactants such as alkyl quaternary ammonium salts or its ethylene oxide adduct; Amphoteric surfactantes such as alkyl betaine, alkyl imidazoline such as alkyl-dimethyl aminoacetic acid betaine, these can separately or mix more than 2 kinds or 2 kinds and use.
For coloured material is dispersed in the coloured material carrier fully, and with dry film thickness is that 0.2～5 μ m is when being coated on the transparency carriers such as glass substrate, form filter section and black matrix easily, in color composition for color filter of the present invention, can contain solvent.As solvent, can enumerate for example cyclohexanone, ethyl cellosolve acetate, butyl cellosolve acetate, propylene glycol monomethyl ether acetate, diethylene glycol dimethyl ether, ethylbenzene, ethylene glycol diethyl ether, dimethylbenzene, ethyl cellosolve, MAK, propylene glycol monomethyl ether, toluene, MEK, ethyl acetate, methyl alcohol, ethanol, isopropyl alcohol, butanols, isobutyl ketone, petroleum-type solvent etc., these solvents can separately or mix and use.In the present invention, the preferred mixing used cyclohexanone and propylene glycol monomethyl ether acetate.With respect to 100 weight portion coloured materials, solvent can use the amount of 800～4000 weight portions.
In addition, for stable composition through the time viscosity, can contain storage stabilizing agent in the color composition for color filter of the present invention.As storage stabilizing agent, can enumerate for example aliquat such as benzyl trimethyl chloride, diethyl hydramine, organic acid and methyl ethers thereof such as lactic acid, oxalic acid, organic phosphines such as tert-butyl pyrocatechol, tetrem phosphine, tetraphenylphosphonium, phosphite etc.With respect to 100 weight portion coloured materials, storage stabilizing agent can use the amount of 0.1～10 weight portion.
When the rayed by ultraviolet ray etc. is solidified said composition, can add Photoepolymerizationinitiater initiater etc. in the color composition for color filter of the present invention.
As Photoepolymerizationinitiater initiater, can use 4-phenoxy group ww-dichloroacetophenone, 4-tert-butyl group ww-dichloroacetophenone, the diethoxy acetophenone, 1-(4-cumenyl)-2-hydroxy-2-methyl propane-1-ketone, the 1-hydroxycyclohexylphenylketone, 2-benzyl-2-dimethylamino-1-(4-morpholino base)-butane-acetyl benzene series Photoepolymerizationinitiater initiaters such as 1-ketone, benzoin, benzoin methyl ether, the benzoin ethylether, the benzoin isopropyl ether, benzoins such as benzyl dimethyl ketal are Photoepolymerizationinitiater initiater, benzophenone, benzoylbenzoic acid, the benzoylbenzoic acid methyl esters, the 4-phenyl benzophenone, dihydroxy benaophenonel, the acrylated benzophenone, 4-benzoyl-4 '-benzophenone series Photoepolymerizationinitiater initiaters such as methyldiphenyl base sulfide, thioxanthones, the 2-clopenthixal ketone, 2-methyl thioxanthones, isopropyl thioxanthone, 2, thioxanthones such as 4-diisopropyl thioxanthones are Photoepolymerizationinitiater initiater, 2,4,6-three chloro-s-three azines, 2-phenyl-4, two (trichloromethyl)-s-three azines of 6-, 2-(p-methoxyphenyl)-4, two (trichloromethyl)-s-three azines of 6-, 2-(p-methylphenyl)-4, two (trichloromethyl)-s-three azines of 6-, 2-piperonyl-4, two (trichloromethyl)-s-three azines of 6-, 2, two (trichloromethyl)-6-styryl-s-three azines of 4-, 2-(naphthalene-1-yl)-4, two (trichloromethyl)-s-three azines of 6-, 2-(4-methoxyl-naphthalene-1-yl)-4, two (trichloromethyl)-s-three azines of 6-, 2,4-trichloromethyl-(piperonyl)-6-three azines, 2,4-trichloromethyl-three azines such as (4 '-methoxyl-styrene)-6-three azines are Photoepolymerizationinitiater initiater, borate is a Photoepolymerizationinitiater initiater, carbazole is a Photoepolymerizationinitiater initiater, and imidazoles is a Photoepolymerizationinitiater initiater etc.With respect to 100 weight portion coloured materials, Photoepolymerizationinitiater initiater can use the amount of 5～200 weight portions.
Above-mentioned Photoepolymerizationinitiater initiater can separately or mix more than 2 kinds or 2 kinds and use; also can and be used as α-acyl group oxime ester, acylphosphine oxide, aminomethyl phenyl glyoxylic esters, the benzil, 9 of sensitizer; 10-phenanthrenequione, camphorquinone, EAQ, 4; the different diphenyl phthalein of 4 '-diethyl ketone, 3; 3 '; 4,4 '-four (tert-butyl hydroperoxide carbonyl) benzophenone, 4, compounds such as 4 '-lignocaine benzophenone.With respect to 100 weight portion Photoepolymerizationinitiater initiaters, sensitizer can use the amount of 0.1～60 weight portion.
In addition, in order to improve the adaptation with substrate, in color composition for color filter of the present invention, also can contain driving fit doses such as silane coupling agent.As silane coupling agent, can enumerate vinyl silanes classes such as vinyl three ('beta '-methoxy ethoxy) silane, vinyl Ethoxysilane, vinyltrimethoxy silane; γ-methacryloxypropyl trimethoxy silane etc. (methyl) acryloxy silanes; β-(3, the 4-epoxycyclohexyl) ethyl trimethoxy silane, β-(3, the 4-epoxycyclohexyl) methyltrimethoxy silane, β-(3, the 4-epoxycyclohexyl) ethyl triethoxysilane, β-(3, the 4-epoxycyclohexyl) methyl triethoxysilane, γ-glycidoxypropyltrime,hoxysilane, γ-epoxy silane classes such as glycidoxy propyl-triethoxysilicane; Amino silane classes such as N-beta-aminoethyl-gamma-amino propyl trimethoxy silicane, N-beta-aminoethyl-γ-An Jibingjisanyiyangjiguiwan, N-beta-aminoethyl-gamma-amino propyl group methyldiethoxysilane, γ-An Jibingjisanyiyangjiguiwan, gamma-amino propyl trimethoxy silicane, N-phenyl-gamma-amino propyl trimethoxy silicane, N-phenyl-γ-An Jibingjisanyiyangjiguiwan; Thiosilicane classes such as γ-Qiu Jibingjisanjiayangjiguiwan, γ-sulfydryl propyl-triethoxysilicane etc.With respect to 100 weight portion coloured materials, silane coupling agent can use the amount of 2.0～100 weight portions.
Color composition for color filter of the present invention can be modulated into intaglio offset printing-ink, driography printing-ink, silk screenink, solvent develop type or the painted anticorrosive additive material of alkali developable.The painted anticorrosive additive material of solvent develop type or alkali developable is to be modulated in the color composition for color filter of the present invention to have photosensitive coloured composition, it is at the thermoplastic resin, thermoset resin or the photoresist that contain as transparent resin, monomer as the transparent resin presoma, Photoepolymerizationinitiater initiater, and dispersion staining material resultant composition in the composition of the solvent that adds as required.
Color composition for color filter of the present invention is preferably by modes such as centrifuging, sintered filter, film filters, removes oversize grain more than or equal to 5 μ m, is preferably greater than the oversize grain that equals 1 μ m, further is preferably greater than oversize grain that equals 0.5 μ m and the dust of sneaking into.
In addition, in order not to be coated with spot, filmed uniformly, color composition for color filter of the present invention preferably is adjusted to and uses viscosity that E type viscosity meter measures under 25 ℃, rotating speed 20rpm for smaller or equal to 10mPas, more preferably is adjusted to 1mPas～8mPas.
Then, color filter of the present invention is described.
The filter section that color filter of the present invention has substrate and uses color composition for color filter of the present invention to form on substrate.Perhaps, color filter of the present invention preferably has filter section and black matrix.Color filter of the present invention has the filter section of multiple color usually, and the color of filter section is generally red, green, blue three looks, the perhaps combination of Huang, magenta, cyan three looks, but be not limited to this.In the present invention, can use above-mentioned color filter at least a portion, for example at least a portion color with composition formation filter section.In addition, also can use above-mentioned color filter to form black matrix with composition.Color filter of the present invention can followingly be made: use color composition for color filter to form filter section and/or black matrix by photolithography or print process on substrate.
As substrate, can use glass plate, the resin plate of polycarbonate, polymethylmethacrylate, polyethylene terephthalate etc. to the high soda-lime glass of visible light transmissivity, low alkali pyrex, alkali-free aluminium pyrex etc.In addition, in order behind Cheng Ping, to carry out liquid crystal drive, can form the transparency electrode that constitutes by indium oxide, tin oxide etc. on the surface of glass plate or resin plate.
The dry film thickness of filter section and black matrix is preferably 0.2～10 μ m, more preferably 0.2～5 μ m.During drying coating film, also can use drying under reduced pressure machine, convection oven, IR baking oven, hot plate etc.
The employing photolithography forms filter section of all kinds and black matrix can carry out with following method.That is, on substrate, use the apparatus for coating coating of mould coating method to be modulated into the color composition for color filter of above-mentioned solvent develop type or the painted anticorrosive additive material of alkali developable, make dry film thickness become 0.2～10 μ m, carry out drying as required and form and film.Then, filming of forming contacted or non-contacting state carries out ultraviolet exposure by the mask with predetermined pattern to film with this.Then, be immersed in solvent or the alkaline-based developer,, remove uncured portion, form the pattern of expectation, thereby can form filter section and black matrix perhaps by spray development liquid such as sprayers.And then, in order to promote the polymerization of painted anticorrosive additive material, also can implement heating as required.According to photolithography, can form high filter section of ratio of precision print process and black matrix.
During development,, also can use organic bases such as dimethyl benzyl amine, triethanolamine as the aqueous solution of alkaline-based developer use sodium carbonate, NaOH etc.In addition, also can add defoamer or surfactant in the developer solution.As developing method, can be suitable for spray development method, spraying development method, immersion development method, stirring (Sheng liquid) development method etc.Here, in order to improve ultraviolet exposure sensitivity, also can be after above-mentioned painted anticorrosive additive material of coating and drying, be coated with water-soluble or alkali soluble resins for example polyvinyl alcohol (PVA) or water-soluble acrylic resin etc. and dry, formation can be prevented carrying out ultraviolet exposure after the film of the polymerization obstacle that block causes.
Color composition for color filter of the present invention is owing to contain unsaturated high-grade fatty acid, preferably have near the fusing point the normal temperature and can not reduce the unsaturated high-grade fatty acid of the dispersion stabilization of composition, therefore in the coating fluid discharge opening top ends of the apparatus for coating of mould coating method, can be dry, solidify.In addition, when solidifying even color composition for color filter of the present invention is placed for a long time, solidfied material also excellent from dissolubility.Therefore, when using color composition for color filter of the present invention, can form and can not produce the longitudinal stripe spot that the curing by coating fluid causes and film uniformly.
In addition, the dispersion stabilization excellence of color composition for color filter of the present invention can not be destroyed dispersion stabilization when making color filter, and coating fluid can be not in time and tackify yet.And then, in color composition for color filter of the present invention, also can use all kinds of solvents.
Thereby the color composition for color filter of the application of the invention can improve equipment work efficient, can make high-quality filter substrate in the yield rate highland simultaneously.
[embodiment]
Below based on embodiment the present invention is described, but the present invention is not limited to this.Here, " part " expression " weight portion " in embodiment and the comparative example.
The modulation of acrylic resin solution:
Removable four-hole boiling flask is installed thermometer, condenser pipe, nitrogen ingress pipe, stirring apparatus and formed reaction vessel, in this reaction vessel, add 70.0 parts of cyclohexanone, be warming up to 80 ℃, after carrying out nitrogen replacement in the reaction vessel, drip 2 hours following monomers by minim pipette.
13.3 parts of n-BMAs
4.6 parts of methacrylic acids-2-hydroxy methacrylate
4.3 parts of methacrylic acids
To 7.4 parts of cumylphenol oxirane modification acrylates
(Toagosei Co., Ltd's system " ア ロ ニ Star Network ス M110 ")
2,0.4 part of 2 '-azoisobutyronitrile
After drip finishing, further continue reaction 3 hours, obtain weight-average molecular weight and be 26000 transparent resin, i.e. the solution of acrylic resin.After being cooled to room temperature, about 2g resin solution of taking a sample 180 ℃ of heat dryings 20 minutes, is measured non-volatile content, by drying under reduced pressure or add cyclohexanone and make that non-volatile content is 20 weight % in the previous synthetic resin solution, thereby modulation is as the acrylic resin solution of coloured material carrier.
The manufacture method of pigment dispersion 1:
After evenly mixing the potpourri of following composition, use the zirconia particles of diameter 1mm, utilize Eiger muller (Eiger Japanese firm system " ミ ニ モ デ Le M-250MKII ") to disperse after 2 hours, filter, produce pigment dispersion with the filtrator of 5 μ m.
Viridine green: 7.1 parts of C.I. pigment green 36s
(Toyo Ink is made society's system " リ オ ノ one Le グ リ one Application 6YK ")
Yellow uitramarine: 150 3.9 parts of C.I. pigment yellows
(Beyer Co., Ltd's system " E4GN-GT ")
1.0 parts of the pigment derivatives of following structure
38.0 parts of acrylic resin solution
0.3 part of oleic acid
49.7 parts of propylene glycol monomethyl ether acetate
The manufacture method of pigment dispersion 2:
Except oleic acid being become linoleic acid, to obtain pigment dispersion 2 with the same method of pigment dispersion 1.
The manufacture method of pigment dispersion 3:
Except oleic acid being become leukotrienes, to obtain pigment dispersion 3 with the same method of pigment dispersion 1.
The manufacture method of pigment dispersion 4:
Except oleic acid being become erucic acid, to obtain pigment dispersion 4 with the same method of pigment dispersion 1.
The manufacture method of pigment dispersion 5:
Except the consumption of oleic acid is become 5.0 parts from 0.3 part, to obtain pigment dispersion 5 with the same method of pigment dispersion 1.
The manufacture method of pigment dispersion 6:
Except oleic acid being become capric acid, to obtain pigment dispersion 6 with the same method of pigment dispersion 1.
The manufacture method of pigment dispersion 7:
Except oleic acid being become stearic acid, to obtain pigment dispersion 7 with the same method of pigment dispersion 1.
The manufacture method of pigment dispersion 8:
Except not using oleic acid, to obtain pigment dispersion 8 with the same method of pigment dispersion 1.
Embodiment 1
The potpourri that mixes following composition filters with the filtrator of 1 μ m after evenly, obtains green coloring composition.Here, (400～700nm) transmitance is more than or equal to 95% in the visible region of coloured material carrier.
1 67.0 parts of pigment dispersions
5.0 parts of acrylic resin solution
4.0 parts of six acrylic acid dipentaerythritol ester
1.4 parts of Photoepolymerizationinitiater initiaters
(チ バ ス ペ シ ヤ Le テ イ ケ ミ カ Le ズ society's system " イ Le ガ キ ユ ア 1 ")
0.2 part of sensitizer (protecting native ケ paddy chemistry society's system " EAB-F ")
5.0 parts of cyclohexanone
17.4 parts of propylene glycol monomethyl ether acetate
Embodiment 2
Except pigment dispersion 1 being become pigment dispersion 2, obtain green coloring composition with similarly to Example 1 method.
Embodiment 3
Except pigment dispersion 1 being become pigment dispersion 3, obtain green coloring composition with similarly to Example 1 method.
Embodiment 4
Except pigment dispersion 1 being become pigment dispersion 4, obtain green coloring composition with similarly to Example 1 method.
Embodiment 5
Except pigment dispersion 1 being become pigment dispersion 5, obtain green coloring composition with similarly to Example 1 method.
Comparative example 1
Except pigment dispersion 1 being become pigment dispersion 6, obtain green coloring composition with similarly to Example 1 method.
Comparative example 2
Except pigment dispersion 1 being become pigment dispersion 7, obtain green coloring composition with similarly to Example 1 method.
Comparative example 3
Except pigment dispersion 1 being become pigment dispersion 8, obtain green coloring composition with similarly to Example 1 method.
Comparative example 4
Pigment dispersion 1 is become pigment dispersion 8,17.4 parts of propylene glycol monomethyl ether acetate are become 17.4 parts of cyclohexanone, in addition, obtain green coloring composition with similarly to Example 1 method.
Comparative example 5
Pigment dispersion 1 is become pigment dispersion 8,17.4 parts of propylene glycol monomethyl ether acetate are become 7.4 parts of cyclohexanone and 10 parts of 3-ethoxyl ethyl propionates, in addition, obtain green coloring composition with similarly to Example 1 method.
Estimate viscosity stability at the green coloring composition that obtains in embodiment and the comparative example with following method.In addition, use the apparatus for coating of mould coating method on the glass substrate of 10cm * 10cm, to be coated with the green coloring composition that obtains in embodiment and the comparative example, at 70 ℃ to the coated substrates prebake conditions that obtains 20 minutes, form dry coating (2 μ m), longitudinal stripe spot, the surface state of filming of filming with following method evaluation and film on the green coloring composition solidfied material.Here,, be coated with continuously 100 times, estimate the 100th time film at each green coloring composition.The results are shown in the table 1.
Viscosity stability is estimated:
Use E type viscosity meter (eastern machine industry society's system " ELD type viscosity meter "), 25 ℃ of conditions with rotating speed 20rpm measure the initial stage viscosity that modulates green coloring composition next day and 40 ℃ through 1 week through the time viscosity.By this initial stage viscosity and through the time viscosity value, with following formula calculate through the time viscosity rate of change.
The viscosity rate of change=| (initial stage viscosity-through time viscosity)/initial stage viscosity | * 100
The longitudinal stripe spot evaluation of filming:
The longitudinal stripe spot of visualization dry coating (vertical coating striped of coating direction) is estimated with Three Estate.
A: can't see the longitudinal stripe spot fully
B: see the longitudinal stripe spot a little
C: obviously see the longitudinal stripe spot.
The surface state evaluation of filming:
Flatness according to tarnish or not coarse is arranged, is estimated in the surface of visualization dry coating.In addition, estimate the having or not of sticking twining property (tackiness) on the surface of dry coating with finger touch.
The evaluation of the green coloring composition solidfied material on filming:
With the green coloring composition solidfied material on the microscopic examination dry coating, estimate with Three Estate.
A: can't see solidfied material fully
B: solidfied material smaller or equal to 1 less than 10
C: solidfied material is more than or equal to 10.
Table 1
| Viscosity rate of change [%] | The longitudinal stripe spot | The surface state of filming | The solidfied material number | ||
| Gloss | Tackiness | ||||
| Embodiment 1 | 2.4 | A | Have | Do not have | A |
| Embodiment 2 | 0.6 | A | Have | Do not have | A |
| Embodiment 3 | 1.2 | A | Have | Do not have | A |
| Embodiment 4 | 3.6 | A | Coarse | Do not have | A |
| Embodiment 5 | 0.3 | A | Have | Have | A |
| Comparative example 1 | 1.0 | B | Have | Do not have | B |
| Comparative example 2 | 2.3 | A | Coarse | Do not have | B |
| Comparative example 3 | 2.2 | C | Have | Do not have | C |
| Comparative example 4 | 114.0 | B | Have | Do not have | B |
| Comparative example 5 | 28.5 | B | Have | Do not have | B |
The green coloring composition of the unsaturated high-grade fatty acid of the carbon number that contains preferred amounts 18 that obtains among the embodiment 1～3, because does not solidify on the dispense tip top at the apparatus for coating of mould coating method, thereby the dry coating that uses said composition to form does not produce the longitudinal stripe spot fully; Because therefore surface smoothing exists gloss, does not also find tackiness.In addition, the green coloring composition that obtains among the embodiment 1～3 is along with the time is not found tackify yet.
Use the green coloring composition of unsaturated high-grade fatty acid of the carbon number that contains preferred amounts 22 that obtains among the embodiment 4 and the dry coating that forms, do not see and produce the longitudinal stripe spot, green coloring composition is not found tackify in time yet, but it is lackluster, coarse to film.
The dry coating that uses the green coloring composition of the unsaturated high-grade fatty acid that contains the amount that more more preferably amount is many that obtains among the embodiment 5 and form, do not see and produce the longitudinal stripe spot, have gloss, and green coloring composition is not along with the time also has tackify, but films the discovery tackiness.
Use the carbon number that contains preferred amounts 10 that obtains in the comparative example 1 saturated higher fatty acid green coloring composition and there is the longitudinal stripe spot a little in filming of forming.And, also find the solidfied material of green coloring composition.
Use the green coloring composition of saturated higher fatty acid of the carbon number that contains preferred amounts 18 that obtains in the comparative example 2 and filming of forming, do not see and produce the longitudinal stripe spot, green coloring composition is not found tackify in time yet, but it is lackluster, coarse to film.And, also find the solidfied material of green coloring composition.
The green coloring composition that does not contain higher fatty acid that obtains in the comparative example 3, because solidify on the dispense tip top at the apparatus for coating of mould coating method, thereby the dry coating that uses said composition to form produces tangible longitudinal stripe spot, and finds the solidfied material of a large amount of green coloring compositions.
Use the replacement higher fatty acid that obtains in the comparative example 4,5 and contain the green coloring composition of solvent of dissolubility excellence of solidfied material and filming of forming, find to produce a little some longitudinal stripe spots, also find the solidfied material of green coloring composition, and then green coloring composition is also found tackify in time.
Can know from above result,, can obtain the color composition for color filter that dispersion stabilization is good, do not have the excellence of coating defects by containing the unsaturated high-grade fatty acid of appropriate amount.
Claims (6)
1. color composition for color filter is characterized in that, contains coloured material carrier, coloured material, unsaturated high-grade fatty acid, and described coloured material carrier is made of transparent resin, its presoma or their potpourri.
2. color composition for color filter according to claim 1 is characterized in that, the carbon number of described unsaturated high-grade fatty acid is 10～24.
3. color composition for color filter according to claim 1 and 2 is characterized in that, the fusing point of described unsaturated high-grade fatty acid is 5～50 ℃.
4. according to any described color composition for color filter in the claim 1～3, it is characterized in that with respect to 100 weight portion coloured materials, the content of described unsaturated high-grade fatty acid is 0.3～45.0 weight portion.
5. color filter is characterized in that, has substrate and the filter section that is arranged on the substrate, and at least a portion of described filter section is used any described color composition for color filter in the claim 1～4 and formed.
6. color filter is characterized in that, has substrate, is arranged on black matrix and filter section on the substrate, and described black matrix uses any described color composition for color filter in the claim 1～4 and forms.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005072780A JP2006258892A (en) | 2005-03-15 | 2005-03-15 | Coloring composition for color filter, and color filter |
| JP2005072780 | 2005-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1834704A true CN1834704A (en) | 2006-09-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100573329A Pending CN1834704A (en) | 2005-03-15 | 2006-03-08 | Coloring composition for color filter and color filter |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2006258892A (en) |
| KR (1) | KR20060100265A (en) |
| CN (1) | CN1834704A (en) |
| TW (1) | TW200641063A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101727003B (en) * | 2008-10-24 | 2012-07-18 | 第一毛织株式会社 | Photosensitive resin composition for color filter and color filter prepared using the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5286687B2 (en) * | 2007-04-04 | 2013-09-11 | 東洋インキＳｃホールディングス株式会社 | Red coloring composition for color filter and color filter |
| JP5258115B2 (en) | 2009-12-24 | 2013-08-07 | 住化ライフテク株式会社 | Insect repellent resin composition and sustained-release insect repellent molded article obtained therefrom |
-
2005
- 2005-03-15 JP JP2005072780A patent/JP2006258892A/en active Pending
-
2006
- 2006-02-27 TW TW095106545A patent/TW200641063A/en unknown
- 2006-03-08 CN CNA2006100573329A patent/CN1834704A/en active Pending
- 2006-03-15 KR KR1020060023960A patent/KR20060100265A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101727003B (en) * | 2008-10-24 | 2012-07-18 | 第一毛织株式会社 | Photosensitive resin composition for color filter and color filter prepared using the same |
| US8486591B2 (en) | 2008-10-24 | 2013-07-16 | Cheil Industries Inc. | Photosensitive resin composition for color filter and color filter prepared using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200641063A (en) | 2006-12-01 |
| JP2006258892A (en) | 2006-09-28 |
| KR20060100265A (en) | 2006-09-20 |
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