CN101633805A - Ink for colored filter, colored filter and method for manufacturing colored filter - Google Patents
Ink for colored filter, colored filter and method for manufacturing colored filter Download PDFInfo
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- CN101633805A CN101633805A CN 200810134446 CN200810134446A CN101633805A CN 101633805 A CN101633805 A CN 101633805A CN 200810134446 CN200810134446 CN 200810134446 CN 200810134446 A CN200810134446 A CN 200810134446A CN 101633805 A CN101633805 A CN 101633805A
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Abstract
The invention relates to ink for a colored filter, which comprises organic solvent, a coloring material, an initiator, and a mixture of high-viscosity polymerizable components and low-viscosity polymerizable components, wherein the high-viscosity polymerizable components are high-viscosity monomers or oligomers, while the low-viscosity polymerizable constituents are low-viscosity monomers or oligomers. In addition, the invention also provides the colored filter and a method for manufacturing the colored filter.
Description
Technical field
The present invention relates to a kind of ink for colored filter, colored filter and this manufacturing method of color filters.
Background technology
Because liquid-crystal display (Liquid Crystal Display, LCD) be the assembly of non-active illuminating, must see through inner backlight light source is provided, the GTG that collocation driving circuit and liquid crystal control form black, white dichromatism shows, see through colored filter (Color Filter again, CF) red (R), green (G), blue (B) three kinds of color layers provide form and aspect, form colored display frame, so colored filter are the key part and component of liquid-crystal display colorize.
At present, the colorful optical filter preparation method of prior art mainly contains: pigment dispersion method (Pigment-dispersed Method) and ink ejecting method (Ink Jet Method) (see also " The FluidProperty Dependency on Ink Jetting Characteristics ", proceedings of the 2005IEEE, pp.258-260,2005.11).
Pigment dispersion method is that chromatic photoresist (Color Resist) is coated on the substrate in the mode of rotary coating, is prepared into color lump (Color Area) via the mode of exposure imaging.Chromatic photoresist is that coloured pigment is dispersed in wherein photoresistance, has the characteristic of irradiation reaction and heat embrittlement.
Ink ejecting method sprays in the receiving space on a transparency carrier simultaneously for the ink that uses an ink discharge device and will contain the RGB color layers, and ink droplet is forming painted RGB color layers pattern on this transparency carrier behind the dry solidification.
With at present, though the cost of ink ejecting method is lower, also than environmental protection, the face Flatness is still not as good as the made result of colo(u)rant dispersion method, so this subject under discussion of partly improving is that ink ejecting method development technique person pursues always.
The composition of this ink-jet ink for color filter is to continue to use the traditional color filter photoresist basically, adjusts the suitability of its ink-jet again, therefore can include organic solvent, colorant, initiator, monomer and resin etc.Wherein for monomeric selection, because of being the selection of prolonging with photoresistance, so can be high official's energy radix, also be full-bodied material simultaneously, as dipentaerythritol acrylate etc., these directly help high cured density, fast set time, and high physical strength, the more important thing is that exposure back developing property is good.
But, do not need in its tangible ink of developing property, those monomers cause after solvent evaporates because of viscosity is too high on the contrary, all there are mobile not good problem in the colorant that stays, monomer mixture etc., therefore, just cause the problem of color layers look inequality easily, and cause the film forming not good problem of look film Flatness later on.
Summary of the invention
In view of this, being necessary to provide a kind of can reduce or ink for colored filter, colored filter and this manufacturing method of color filters of colourless inequality and preferable look film Flatness.
A kind of ink for colored filter, comprise: the mixture of organic solvent, colorant, initiator and high viscosity polymerizable composition and low viscosity polymerizable composition, this high viscosity polymerizable composition is full-bodied monomer or oligomer, and low viscosity polymerizable composition is low viscous monomer or oligomer.
A kind of colored filter comprises: a substrate; Be formed at the some barricades on this substrate, these some barricades limit some receiving spaces; And be positioned at some color layers of these some receiving spaces, the ink that forms these some color layers comprises: the mixture of organic solvent, colorant, initiator and high viscosity polymerizable composition and low viscosity polymerizable composition, this high viscosity polymerizable composition is full-bodied monomer or oligomer, and low viscosity polymerizable composition is low viscous monomer or oligomer.
A kind of manufacturing method of color filters may further comprise the steps:
One transparency carrier is provided;
Form some barricades on this transparency carrier, these some barricades limit some receiving spaces;
Utilize ink jet method that ink is filled to some receiving spaces by an ink discharge device, the composition of this ink comprises: the mixture of organic solvent, colorant, initiator and high viscosity polymerizable composition and low viscosity polymerizable composition, this high viscosity polymerizable composition is full-bodied monomer or oligomer, and low viscosity polymerizable composition is low viscous monomer or oligomer;
Ink in the some receiving spaces of dry solidification, and form some color layers.
Compared to prior art, contain full-bodied monomer or oligomer and low viscous monomer or oligomer in the composition of described ink for colored filter, this full-bodied monomer or oligomer curing speed are very fast and curing back physical strength is better, so can guarantee to improve the physical strength of color layers look film, but, low viscous monomer that adds or oligomer are because viscosity is low, especially before completely solidified, in ink, possess this low viscous monomer or oligomer, therefore has good flowability, so can remedy high viscosity monomer or the not good problem of oligomer flowability.So, when this ink of dry solidification, high low viscosity blended monomer or oligomer are easy to flow to easy coloured uneven part originally, especially the edge of sub-pixel, therefore, can reduce the occurrence probability of look inequality, and, look film even and high flat degree (low Ra value) can be formed after this color layers film forming.And owing to also contain full-bodied monomer or oligomer in this ink, therefore, this color layers still has higher physical strength.
Description of drawings
The structural representation of a kind of colored filter that Fig. 1 provides for second embodiment of the invention.
The schematic flow sheet of a kind of method for manufacturing colored filtering substrate that Fig. 2 to Fig. 5 provides for third embodiment of the invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
First embodiment of the invention provides a kind of ink for colored filter, this ink comprises: the mixture of organic solvent, colorant, initiator and high viscosity polymerizable composition and low viscosity polymerizable composition, this high viscosity polymerizable composition is full-bodied monomer or oligomer, and low viscosity polymerizable composition is low viscous monomer or oligomer.
This full-bodied monomer or oligomer be for viscosity in the time of 25 ℃ is 1000 to 5000000CPS monomer or oligomer, is preferably in the time of 25 ℃ viscosity and is 10000 to 2000000CPS monomer or oligomer.
This low viscous monomer or oligomer be for viscosity in the time of 25 ℃ is monomer or oligomer below the 999CPS, is preferably in the time of 25 ℃ viscosity and is 10 to 500CPS monomer or oligomer, and more preferably viscosity is 10 to 250CPS monomer or oligomer in the time of 25 ℃.
Preferably the molecular weight and the chemical structure of high viscosity polymerizable composition and low viscosity polymerizable composition are all inequality.
This organic solvent comprises a main organic solvent, and its boiling point need be higher than 180 ℃, and the vapour pressure in the time of 20 ℃ is less than 0.33mmHg (mmhg); Boiling point is preferably between 190 to 230 ℃, and the vapour pressure in the time of 20 ℃ is preferably between 0.00001mmHg between the 0.33mmHg, more preferably between 0.01mmHg between the 0.33mmHg.
Ratio between each composition of ink is: 15 to 95wt% organic solvent, 0.1 to 30wt% colorant, 0.1 to 10wt% initiator, the mixture of 1 to 80wt% polymerizable composition.Preferred ratio is 60 to 85wt% organic solvent, 2 to 15wt% colorant, 0.1 to 5wt% initiator, the mixture of 5 to 30wt% polymerizable composition.The ratio of main organic solvent need account for more than 50% of whole solvents.And the ratio that wherein high low viscosity can be grouped between part is: this high viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 50% to 99.9%.This low viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 0.1% to 50%.Preferably, this high viscosity polymerizable composition accounts for mixture 50% to 80% preferable of high viscosity polymerizable composition and low viscosity polymerizable composition, and this low viscosity polymerizable composition accounts for mixture 20% to 50% preferable of high viscosity polymerizable composition and low viscosity polymerizable composition.
For reaching the effect of planarization, the surface tension of ink needs to be preferably between 25 to 30 dynes per centimeter between 22.5 to 35 dynes per centimeter (dyne/cm).If when the ink composition of selecting for use can't reach this scope, can add the interfacial agent adjustment, the consumption of interfacial agent should not surpass 0.5%.
Below selection that respectively should each material is elaborated.
Main organic solvent in this ink comprises following several big class: ester class, ethers, pure ethers, ketone, alcohols, polyalcohols derivative and nitrogenous series solvent etc., but its boiling point need be higher than 180 ℃.
Concrete, this solvent can preferably be selected following material for use: dipropylene glycol methyl ether (Dipropylene GlycolMethyl Ether), tripropylene glycol methyl ether (Tripropylene Glycol Methyl Ether), dipropylene glycol methyl ether acetate (Dipropylene Glycol Methyl Ether Acetate), dipropylene glycol propyl ether (Dipropylene Glycol n-propyl Ether), propylene glycol propyl ether (Propylene Glycol n-propylEther), dipropylene glycol butyl ether (Dipropylene Glycol n-butyl Ether), tripropylene glycol butyl ether (Tripropylene Glycol n-butyl Ether), glycol ether propylene glycol phenylate (Glycol Ether PropyleneGlycol Phenyl Ether), diethylene glycol ether (Diethylene Glycol Ethyl Ether), Diethylene Glycol butyl ether (Diethylene Glycol n-butyl Ether), Diethylene Glycol hexyl ether (Diethylene GlycolHexyl Ether), 2-Butoxyethyl acetate (Ethylene Glycol Monobutyl Ether Acetate), glycol hexyl ether (Ethylene Glycol Hexyl Ether), tripropylene glycol methyl ether (Triethylene GlycolMethyl Ether), tripropylene glycol ether (Triethylene Glycol Ethyl Ether), tripropylene glycol butyl ether (Triethylene Glycol n-butyl Ether), ethylene glycol phenyl ether (Ethylene Glycol Phenyl Ether), Exxal 12 (Trimethylnonanol), diethylene glycol dimethyl ether (Diethylene Glycol MonomethylEther), at least a in hexylene glycol (Hexylene Glycol) and the γ-Ding Suan lactone (Gamma Butyrolactone).
In addition, the present invention also can be used by this equal solvent collocation low boiling point solvent except that using above-mentioned solvent together.
The colorant of this ink for colored filter can suitably be selected according to the purposes of colored filter, and it can be pigment, dyestuff or natural coloring material.Wherein, this colorant is preferably the colorant with high resolving power and high heat resistance, and generally selects pigment, particularly pigment dyestuff for use, selects pigment to be because the color persistence of pigment is higher.
Common red comprises: pigment red 122, Pigment red 177, Pigment red 185, Pigment red 202, Pigment red 206, Pigment Red 207, Pigment red 209, Pigment red 224, Pigment red 254, Pigment red 264.Common blue pigment comprises: pigment Blue 15: 3, pigment Blue 15: 4, pigment Blue 15: 6.Common phthalocyanine comprises: pigment Green 7, pigment green 36, Pigment green 58.In addition because of adjusting the needs of color matching, still use yellow ultramarine and violet pigment, common comprises: Pigment Yellow 73 74, pigment yellow 83, Pigment Yellow 73 110, pigment yellow 13 8, pigment yellow 13 9, Pigment Yellow 73 150, Pigment Yellow 73 151, Pigment Yellow 73 155, Pigment Yellow 73 180, Pigment Yellow 73 213, pigment violet 19 or pigment Violet 23 etc.
The initiator of this ink for colored filter comprises in light initiator and the hot initiator at least a.General common selection includes but not limited to: hot initiator, as dibenzoyl peroxide (Benzoyl peroxide, BPO), the two isobutyl moon of azo green grass or young crops (azobisisobutyronitrile, AIBN), ditertiary butyl peroxide (di-t-Butyl Peroxide), t-butylperoxyl benzoate (Tert-Butyl Peroxy Benzoate), cumyl hydroperoxide (Cumene Hydro Peroxide); This light initiator, as two (dimethyl amido) benzophenone (4,4-bis (dimethylamino)), two (diethyl amido) benzophenone (4,4 '-Bis (Diethylamino) Benzophenone), anisole-two (trichloromethyl)-triazine (2-(4-Methoxyphenyl)-4,6-Bis (Trichloromethyl)-1,3,5-Triazine), three (trichloromethyl) triazine (Tris (trichloromethyl)-1,3,5-triazine),
819,
369,
2959,
379,
184,
784,
250,
907,
651,
OXE01,
OXE02,
500,
1800,
1000,
1700,
BP,
1173, CGI 242,
1173, CGI-552,
TPO,
TPO-L,
200,
107,
184,
284, KAYACURE DETX-S, KAYACURE CTX, KAYACURE BMS or KAYACURE BP-100 etc.
Full-bodied monomer or oligomer comprise the epoxy acrylic oligomer ester (Epoxy Acrylate Oligomers) of two or two above sense radixes (Functionality), the urethane acrylate oligomer of two or two above sense radixes (Urethane Acrylate Oligomers), the polyester acrylic oligomer ester of two or two above sense radixes (Polyester Acrylate Oligomers), the acrylate oligomer of two or two above sense radixes (Acrylate Oligomers), at least a in acrylate monomer of five or five above sense radixes (Acrylate Monomers) and the above-mentioned materials derivative.
Preferred high viscosity oligomer material comprises: bisphenol-A epoxy diacrylate (Bisphenol AEpoxy Diacrylate), bisphenol-A epoxy dimethacrylate (Bisphenol A EpoxyDimethacrylate), amine modified bisphenol A epoxy acrylate (Amine Modified Bisphenol AEpoxy Acrylate), fatty acid modified bisphenol A epoxy acrylate (Fatty acid ModifiedBisphenol A Epoxy Acrylate), phenolic aldehyde epoxy acrylate (Novolac Epoxy Acrylate), aromatic urethane diacrylate (Aromatic Urethane Diacrylate), aromatic urethane triacrylate (Aromatic Urethane Triacrylate), aromatic urethane six acrylate (AromaticUrethane Hexaacrylate), aliphatic urethane diacrylate (Aliphatic UrethaneDiacrylate), aliphatic polyurethane triacrylate (Aliphatic Urethane Triacrylate), aliphatic polyurethane six acrylate (Aliphatic Urethane Hexaacrylate), polyester diacrylate (Polyester Diacrylate), polyester tetraacrylate (Polyester Tetraacrylate), polyester six acrylate (Polyester Hexaacrylate), fatty acid modified polyester six acrylate (Fatty acidModified Polyester Hexaacrylate), polyester chloride acrylic ester (Chlorinated PolyesterAcrylate), amine modified poly ester acrylate (Amine Modified Polyester Acrylate), aliphatics diacrylate oligomer ester (Aliphatic Diacrylate) and glass transition temperature are higher than in the acrylate more than 20 ℃ at least a.
Preferred high viscosity monomer material comprises: at least a in ethoxyquin (2) bisphenol a diacrylate, ethoxyquin (3) bisphenol a diacrylate, ethoxyquin (2) bisphenol a dimethacrylate, Dipentaerythritol five acrylate and the dipentaerythritol acrylate.
It is at least a that low viscous monomer or oligomer comprise that glass transition temperature is lower than in acrylate monomer, methacrylate monomer and the above-mentioned materials derivative of acrylate oligomer below 20 ℃ and simple function radix, two sense radixes, trifunctional radix.
Low viscous monomer preferable material comprises: at least a in two sense radix acrylate monomers, trifunctional radix acrylate monomer, two sense radix methacrylate monomer, trifunctional radix methacrylate monomer, the four sense radix acrylate monomers.
The preferred material of low viscous monomer comprises: diethylene glycol diacrylate, triethylene glycol diacrylate, polyoxyethylene glycol (200) diacrylate, polyoxyethylene glycol (400) diacrylate, polyoxyethylene glycol (600) diacrylate, 1, the 3-butylene glycol diacrylate, 1, the 4-butylene glycol diacrylate, 1, the 6-hexanediyl ester, propylene glycol diacrylate, ethoxyquin (3) bisphenol a diacrylate, ethoxyquin (10) bisphenol a diacrylate, ethylene glycol dimethacrylate, the Diethylene Glycol dimethacrylate, the triethylene glycol dimethacrylate, polyoxyethylene glycol (200) dimethacrylate, polyoxyethylene glycol (400) dimethacrylate, polyoxyethylene glycol (600) dimethacrylate, 1, the 3-butylene glycol dimethacrylate, 1, the 4-butylene glycol dimethacrylate, 1, the 6-hexanediol dimethacrylate, ethoxyquin (6) bisphenol a dimethacrylate, ethoxyquin (8) bisphenol a dimethacrylate, ethoxyquin (10) bisphenol a dimethacrylate, neopentylglycol dimethacrylate, Viscoat 295, ethoxyquin (3) Viscoat 295, ethoxyquin (20) Viscoat 295, third oxidation (3) glycerol triacrylate, third oxidation (6) Viscoat 295, at least a in pentaerythritol triacrylate and the tetramethylol methane tetraacrylate.
Wherein, this above-mentioned materials derivative is meant that above-mentioned monomer or oligomer modification become to have following one or more functional groups or functional group, and include but not limited to: hydroxyl (OH), the prussic acid base (HCN), amino (NH), isocyanato (NCO), carboxyl (COOH), sulfhedryl (SH), epoxy group(ing), phenyl ring (AromaticRing), amide group (Amide), lipid (Ester), ammoniacum (Urethane), siloxanes (Siloxane), sulfide (Sulfide), vinyl (Vinyl), acid anhydrides (Anhydride), urea resin (Urea), carbonic acid (Carbonate), phosphoric acid fat (Phosphate Ester), sulfone (Sulfone) etc.Certainly, existing above-mentioned one or more functional groups of this monomer or oligomer itself or functional group's structure also can increase functional group or functional group's modification.
In addition, the composition of this ink also comprises other additive, and according to its function difference, its addition and composition are all widely different, can be interfacial agent, suds suppressor or defoamer, dispersion agent or resin.
Wherein, the common selection of this interfacial agent includes but not limited to: contain silica alkanes organic compound or polymer, fluorine series organic compound or polymer, ethoxy alcohol or ethoxy alcohol modification series organic compound.
The common selection of this suds suppressor or defoamer includes but not limited to: contain silicane organic compound or polymer, ethoxy alcohol or ethoxy alcohol modification series organic compound.
The common selection of this dispersion agent includes but not limited to: acrylate or acrylate modified series organic compound or polymer, ammonia ester or ammonia ester are modification series organic compound or polymer or other organic polymer structure, certainly as general merchandise, as trade(brand)name " Suo Sibaisi (Solsperse) " also in the scope of common selection.
This resin is common is chosen as acrylate or methacrylic ester is the polymkeric substance or the multipolymer of main body, include but not limited to that following monomer polymerization forms: vinylformic acid (Acrylic Acid), methacrylic acid (Methacrylic Acid), acrylate (Acrylate), methacrylic ester (Methacrylate), Jia Jibingxisuanyizhi, hydroxyethyl methylacrylate, Rocryl 410, butyl methacrylate, Propenoic acid, 2-methyl, isobutyl ester, isodecyl acrylate, lauryl methacrylate(LMA), Isooctyl acrylate monomer, or the modification derivant monomer of aforementioned monomer.
See also Fig. 1, a kind of colored filter that provides for second embodiment of the invention.This colored filter 100 comprises a substrate 102, be positioned at some barricades 106 on these substrate 102 surfaces and be positioned at some color layers 114 of the some receiving spaces that limited by some barricades 106.
This substrate 102 can adopt the substrate of glass or plastic plate or silicon wafer.
This barricade 106 limits some receiving spaces, and this barricade 102 is to be made by resin material, and this barricade 102 can carry out exposure imaging to photoresist by the light shield with predetermined pattern and form.
The ink that forms this color layers comprises: the mixture of organic solvent, colorant, initiator and high viscosity polymerizable composition and low viscosity polymerizable composition, this high viscosity polymerizable composition is full-bodied monomer or oligomer, and low viscosity polymerizable composition is low viscous monomer or oligomer.
, described in first embodiment, no longer repeat as for the selection of each material in the ink at this.
See also Fig. 2 to Fig. 5, the manufacture method of the colored filter 100 that a kind of second embodiment provides is provided for third embodiment of the invention.This method may further comprise the steps:
Step 1: a transparency carrier 102 is provided, and this substrate 102 can adopt the substrate of glass or plastic plate or silicon wafer.
Step 2: form some barricades 106 on this transparency carrier 102, these some barricades 106 limit some receiving spaces 108, as shown in Figure 2.
This barricade 106 is made by resin material, and this barricade 102 can carry out exposure imaging to photoresist by the light shield with predetermined pattern and form.In the present embodiment, this photoresist layer is formed by the minus photoresist.Perhaps, can use the eurymeric photoresist, still, the design of the light shield of this moment is different.This photoresist layer can utilize following method to be formed on substrate 102 surfaces: method of spin coating (Spin Coat), roller coating method (Roller Coat) and crack formula coating method (Slit Coat) etc.This light shield is made according to the pattern of the default formation of barricade 106.Utilize this light shield this photoresist layer to be positioned at the barricade 106 of the predetermined pattern on substrate 102 surfaces via exposure, the formation of developing.
In addition, described barricade 106 can also be made up of multilayered structure, and for example, this barricade 106 can be made up of inorganic materials bottom of making and the top layer of being made by organic materials.
Step 3: utilize ink jet method that ink 112 is filled in some receiving spaces 108, as shown in Figure 3 by an ink discharge device 110.
The composition of this ink comprises: the mixture of organic solvent, colorant, initiator and high viscosity polymerizable composition and low viscosity polymerizable composition, this high viscosity polymerizable composition is full-bodied monomer or oligomer, and low viscosity polymerizable composition is low viscous monomer or oligomer.
This full-bodied monomer or oligomer be for viscosity in the time of 25 ℃ is 1000 to 5000000CPS monomer or oligomer, is preferably in the time of 25 ℃ viscosity and is 10000 to 2000000CPS monomer or oligomer.
This low viscous monomer or oligomer be for viscosity in the time of 25 ℃ is monomer or oligomer below the 999CPS, is preferably in the time of 25 ℃ viscosity and is 10 to 500CPS monomer or oligomer, more preferably the monomer or the oligomer of viscosity 10 to 250CPS in the time of 25 ℃.
Wherein, this high viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 50% to 99.9%.This low viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 0.1% to 50%.Preferably, this high viscosity polymerizable composition accounts for mixture 50% to 80% preferable of high viscosity polymerizable composition and low viscosity polymerizable composition, and this low viscosity polymerizable composition accounts for mixture 20% to 50% preferable of high viscosity polymerizable composition and low viscosity polymerizable composition.
For reaching the effect of planarization, the surface tension of ink needs to be preferably between 25 to 30 dynes per centimeter between 22.5 to 35 dynes per centimeter (dyne/cm)., described in first embodiment, no longer repeat as for the selection of each material in the ink at this.
Wherein, this ink discharge device can be selected Thermal Bubble Ink-jet Printer device (Thermal Bubble Ink JetPrinting Apparatus) or piezoelectric ink jet device (Piezoelectric Ink Jet PrintingApparatus) for use.
This ink 112 forms ink layer 112 ' in receiving space 108, as shown in Figure 4.Ink jet method comprises synchronous ink jet method and substep ink jet method.Ink jet method is to spray required RGB three chromatic inks simultaneously in some receiving spaces 108 synchronously.The substep ink jet method is for spraying successively with chromatic ink in the some receiving spaces 108 that form the same color layer, so need just can finish whole ink-jets three times.
Step 4: the ink layer 112 ' in the some receiving spaces 108 of dry solidification and the color layers 114 that forms, as shown in Figure 1.This step is mainly finished by one or two heating unit, if ink itself is a photocuring, need add an exposure apparatus again, and exposure apparatus comprises ultraviolet exposure equipment sealant.In addition, also can add adopt a vacuum means to place the first road heating process before, the solvent in the ink is made the ink volatilization in the mode that vacuumizes.
Modal example is optionally to add a vacuum extractor earlier to make most of ink volatilization, and next enters the first road heating process, carries out baking in advance, and this moment, temperature was lower.If the ink of follow-up photocuring then needs to be cured with the ink layer 112 ' of exposure apparatus with receiving space.Finally the ink layer 112 ' of receiving space is carried out further completely solidified with the second road heating unit.
Below with several groups of property differences of testing colored filter color layers with the colored filter color layers of the ink making of using prior art of the ink making that the use first embodiment of the invention is described.
First group of experiment: reference examples 1 all adopts Pigment red 254 with the pigment of experimental example 1-5, and dispersion agent all adopts Suo Sibaisi 24000, and the high viscosity polymerizable material all adopts bisphenol-A epoxy diacrylate oligomer ester, and initiator adopts
907, do not adopt any resin, solvent adopts the mixed solvent of tripropylene glycol methyl ether and 1-Methoxy-2-propyl acetate, and interfacial agent adopts the type siloxane interfacial agent.The ink of reference examples 1 does not contain the low viscosity polymerizable material, and the low viscosity polymerizable material of experimental example 1-5 all adopts ethoxyquin (3) bisphenol a diacrylate monomer.
Experimental result shows: the low viscosity polymerizable material is many more in the ink, and the Flatness of the colored filter color layers look film of formation is high more, but after the weather-proof test, value of chromatism may excessive (Δ Ea, b＞3).
| Reference examples 1 | Experimental example 1 | Experimental example 2 | Experimental example 3 | Experimental example 4 | Experimental example 5 | |
| Pigment concentration (%) | ??6 | ??6 | ??6 | ??6 | ??6 | ??6 |
| Dispersant concentration % | ??2.4 | ??2.4 | ??2.4 | ??2.4 | ??2.4 | ??2.4 |
| Low viscosity polymerizable material (%) | ??0 | ??1 | ??3 | ??4 | ??6 | ??8 |
| High viscosity polymerizable material (%) | ??12 | ??11 | ??9 | ??8 | ??6 | ??4 |
| Initiator (%) | ??3 | ??3 | ??3 | ??3 | ??3 | ??3 |
| Resin (%) | ??0 | ??0 | ??0 | ??0 | ??0 | ??0 |
| Solvent (%) | ??76.585 | ??76.585 | ??76.585 | ??76.585 | ??76.585 | ??76.585 |
| Interfacial agent (%) | ??0.015 | ??0.015 | ??0.015 | ??0.015 | ??0.015 | ??0.015 |
| Flatness Ra (how rice) | ??55 | ??28 | ??19 | ??17 | ??16 | ??15 |
| Weather-proof value of chromatism Δ Ea, b | ??＜3 | ??＜3 | ??＜3 | ??＜3 | ??＜3 | ??4 |
Second group of experiment: reference examples 2 all adopts pigment green 36 with the pigment of experimental example 6-9, and dispersion agent all adopts Suo Sibaisi 24000, and the high viscosity polymerizable material all adopts the dipentaerythritol acrylate monomer, and initiator adopts
184, resin adopts polyacrylate resin, and main solvent adopts 2-Butoxyethyl acetate, and it is interfacial agent that interfacial agent adopts fluorine.The ink of reference examples 2 does not contain the low viscosity polymerizable material, and the low viscosity polymerizable material of experimental example 6-9 all adopts tetramethylol methane tetraacrylate.
Experiment conclusion is identical with above-mentioned first group of experiment, and experiment conclusion does not change because of containing resin, and the low viscosity polymerizable material is many more in the ink, and the look film Flatness of the colored filter color layers of formation is high more, but after the weather-proof test, value of chromatism may be excessive.
| Reference examples 2 | Experimental example 6 | Experimental example 7 | Experimental example 8 | Experimental example 9 | |
| Pigment concentration (%) | ??8 | ??8 | ??8 | ??8 | ??8 |
| Dispersant concentration (%) | ??3.2 | ??3.2 | ??3.2 | ??3.2 | ??3.2 |
| Low viscosity polymerizable material (%) | ??0 | ??2 | ??4 | ??6 | ??8 |
| High viscosity polymerizable material (%) | ??8 | ??6 | ??4 | ??2 | ??0 |
| Initiator (%) | ??2 | ??2 | ??2 | ??2 | ??2 |
| Resin (%) | ??4 | ??4 | ??4 | ??4 | ??4 |
| Solvent (%) | ??74.78 | ??74.78 | ??74.78 | ??74.78 | ??74.78 |
| Interfacial agent (%) | ??0.02 | ??0.02 | ??0.02 | ??0.02 | ??0.02 |
| Flatness Ra (how rice) | ??54 | ??18 | ??16 | ??13 | ??12 |
| Weather-proof value of chromatism Δ Ea, b | ??＜3 | ??＜3 | ??＜3 | ??3.2 | ??4 |
The 3rd group of experiment: the pigment of experimental example 10-13 all adopts pigment Blue 15: 6 and pigment Violet 23, dispersion agent all adopts Suo Sibaisi 24000 and self-control amine modified polyacrylate dispersion agent, the low viscosity polymerizable material adopts low viscosity acrylate oligomer CN152, the high viscosity polymerizable material all adopts the aliphatic urethane diacrylate oligomer, initiator adopts ditertiary butyl peroxide, resin adopts methacrylic acid/methacrylic acid benzene methyl copolymer resin, solvent adopts ethylene glycol phenyl ether, the mixed solvent of tripropylene glycol methyl ether and dipropylene glycol methyl ether acetate, do not contain interfacial agent in the ink of experimental example 10, it is interfacial agent that the ink of experimental example 11-13 adopts fluorine.
Experimental result shows: use surface tension preferable between the effect of the colored filter color layers look film of the ink making of 22.5 to 35 dynes per centimeter.
| Experimental example 10 | Experimental example 11 | Experimental example 12 | Experimental example 13 | |
| Pigment concentration (%) | ??6 | ??6 | ??6 | ??6 |
| Dispersant concentration (%) | ??3 | ??3 | ??3 | ??3 |
| Low viscosity polymerizable material (%) | ??2 | ??2 | ??2 | ??2 |
| High viscosity polymerizable material (%) | ??6 | ??6 | ??6 | ??6 |
| Initiator (%) | ??2 | ??2 | ??2 | ??2 |
| Resin (%) | ??4 | ??4 | ??4 | ??4 |
| Solvent (%) | ??77 | ??76.99 | ??76.975 | ??76.95 |
| Interfacial agent (%) | ??0 | ??0.010 | ??0.025 | ??0.050 |
| Surface tension (dynes per centimeter) | ??38 | ??34 | ??29 | ??25 |
| Flatness Ra (how rice) | ??35 | ??18 | ??14 | ??13 |
The 4th group of experiment: the pigment of experimental example 14-17 all adopts Pigment red 254 and pigment yellow 13 9, dispersion agent all adopts Suo Sibaisi 24000 and self-control amine modified polyacrylate dispersion agent, low viscosity polymerizable material such as following table are listed, the high viscosity polymerizable material all adopts high viscosity acrylate oligomer CN133, initiator adopts three (trichloromethyl) triazine (Tris (trichloromethyl)-1,3,5-triazine, resin adopts methyl methacrylate/butyl methacrylate copolymer resin, and solvent adopts the mixed solvent of dipropylene glycol methyl ether and 1-Methoxy-2-propyl acetate.
Experimental result shows: the higher weather-proof aberration of low viscosity polymerizable material of glass transition temperature is preferable.
| Experimental example 14 | Experimental example 15 | Experimental example 16 | Experimental example 17 | Experimental example 18 | |
| Pigment concentration (%) | ??6 | ?6 | ??6 | ??6 | ??6 |
| Dispersant concentration (%) | ??3 | ?3 | ??3 | ??3 | ??3 |
| Low viscosity polymerizable material (%) | ??4 | ?4 | ??4 | ??4 | ??4 |
| Low viscosity polymerizable material kind | Three decyl methacrylic esters | Polyoxyethylene glycol (400) diacrylate | 1, the 6-hexanediol dimethacrylate | Ethoxyquin (20) Viscoat 295 | Tetramethylol methane tetraacrylate |
| The sense radix | ??1 | ?2 | ??2 | ??3 | ??4 |
| Glass transition temperature (℃) | ??-40 | ?3 | ??30 | ??38 | ??103 |
| High viscosity polymerizable material (%) | ??4 | ?4 | ??4 | ??4 | ??4 |
| Initiator (%) | ??2 | ??2 | ??2 | ??2 | ??2 |
| Resin (%) | ??4 | ??4 | ??4 | ??4 | ??4 |
| Solvent (%) | ??77 | ??77 | ??77 | ??77 | ??77 |
| Weather-proof value of chromatism Δ Ea, b | ??4.2 | ??2.8 | ??2.1 | ??1.9 | ??1.6 |
Owing to contain full-bodied monomer or oligomer and low viscous monomer or oligomer in the composition of ink 112, this full-bodied monomer or oligomer curing speed are very fast and curing back physical strength is better, so can guarantee to improve the physical strength of color layers look film, only, low viscous monomer that adds or oligomer are because viscosity is low, especially before completely solidified, in heating unit, possess this low viscous monomer or oligomer, therefore has good flowability, so can remedy high viscosity monomer or the not good problem of oligomer flowability.So, when this ink of dry solidification, high low viscosity blended monomer or oligomer are easy to flow to locating of easy coloured inequality originally, especially the edge of sub-pixel, therefore, can reduce the occurrence probability of look inequality, and, look film even and high flat degree (low Ra value) can be formed after these color layers 114 film forming.And owing to also contain full-bodied monomer or oligomer in this ink 112, therefore, this color layers 114 still has higher physical strength.
The manufacture method of the colored filter 100 of present embodiment can further comprise step 5: form a protective layer 116 or a conductive layer 118 that covers this barricade 106 and color layers 114 on this substrate 102; or form a protective layer 116 and a conductive layer 118 successively, as shown in Figure 5.
Be appreciated that in the above-mentioned steps five that the making of conductive layer can be adopted vacuum sputtering apparatus to carry out sputter formation or adopt other technology to form, the making of protective layer then can be adopted processing procedures such as rotary coating or crack coating.
In addition, those skilled in the art can also do other variation in spirit of the present invention, certainly, the variation that these are done according to spirit of the present invention, all should be included in the present invention's scope required for protection in.
Claims (35)
1. ink for colored filter, it comprises: the mixture of organic solvent, colorant, initiator and high viscosity polymerizable composition and low viscosity polymerizable composition, this high viscosity polymerizable composition is full-bodied monomer or oligomer, and low viscosity polymerizable composition is low viscous monomer or oligomer.
2. ink for colored filter as claimed in claim 1 is characterized in that, this full-bodied monomer or oligomer are 1000 to 5000000CPS monomer or oligomer for viscosity in the time of 25 ℃.
3. ink for colored filter as claimed in claim 1 is characterized in that, this low viscous monomer or oligomer are monomer or oligomer below the 999CPS for viscosity in the time of 25 ℃.
4. ink for colored filter as claimed in claim 1 is characterized in that, this full-bodied monomer or oligomer are 10000 to 2000000CPS monomer or oligomer for viscosity in the time of 25 ℃.
5. ink for colored filter as claimed in claim 1 is characterized in that, this low viscous monomer or oligomer are 10 to 500CPS monomer or oligomer for viscosity in the time of 25 ℃.
6. ink for colored filter as claimed in claim 1 is characterized in that, the molecular weight and the chemical structure of this high viscosity polymerizable composition and this low viscosity polymerizable composition are all inequality.
7. ink for colored filter as claimed in claim 1, it is characterized in that, this high viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 50% to 99.9%, this low viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 0.1% to 50%.
8. ink for colored filter as claimed in claim 1, it is characterized in that, this high viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 50% to 80%, this low viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 20% to 50%.
9. ink for colored filter as claimed in claim 1 is characterized in that, the surface tension of ink is between 22.5 to 35 dynes per centimeter.
10. ink for colored filter as claimed in claim 1, it is characterized in that this full-bodied monomer or oligomer comprise in the acrylate monomer of acrylate oligomer, five or five above sense radixes of polyester acrylic oligomer ester, the two or two above sense radixes of urethane acrylate oligomer, the two or two above sense radixes of epoxy acrylic oligomer ester, the two or two above sense radixes of two or two above sense radixes and the above-mentioned materials derivative at least a.
11. ink for colored filter as claimed in claim 1, it is characterized in that this full-bodied oligomer comprises the bisphenol-A epoxy diacrylate, the bisphenol-A epoxy dimethacrylate, the amine modified bisphenol A epoxy acrylate, fatty acid modified bisphenol A epoxy acrylate, the phenolic aldehyde epoxy acrylate, the aromatic urethane diacrylate, the aromatic urethane triacrylate, aromatic urethane six acrylate, aliphatic urethane diacrylate, the aliphatic polyurethane triacrylate, aliphatic polyurethane six acrylate, polyester diacrylate, the polyester tetraacrylate, polyester six acrylate, fatty acid modified polyester six acrylate, polyester chloride acrylic ester, amine modified poly ester acrylate, aliphatics diacrylate oligomer ester and glass transition temperature are higher than in the acrylate more than 20 ℃ at least a.
12. ink for colored filter as claimed in claim 1, it is characterized in that this full-bodied monomer comprises in ethoxyquin (2) bisphenol a diacrylate, ethoxyquin (3) bisphenol a diacrylate, ethoxyquin (2) bisphenol a dimethacrylate, Dipentaerythritol five acrylate and the dipentaerythritol acrylate at least a.
13. ink for colored filter as claimed in claim 1, it is characterized in that this low viscous monomer comprises in the acrylate monomer of methacrylate monomer, four sense radixes of methacrylate monomer, the trifunctional radix of acrylate monomer, the two sense radixes of acrylate monomer, the trifunctional radix of two sense radixes and the above-mentioned materials derivative at least a.
14. ink for colored filter as claimed in claim 1, it is characterized in that, this low viscous monomer comprises diethylene glycol diacrylate, triethylene glycol diacrylate, polyoxyethylene glycol (200) diacrylate, polyoxyethylene glycol (400) diacrylate, polyoxyethylene glycol (600) diacrylate, 1, the 3-butylene glycol diacrylate, 1, the 4-butylene glycol diacrylate, 1, the 6-hexanediyl ester, propylene glycol diacrylate, ethoxyquin (3) bisphenol a diacrylate, ethoxyquin (10) bisphenol a diacrylate, ethylene glycol dimethacrylate, the Diethylene Glycol dimethacrylate, the triethylene glycol dimethacrylate, polyoxyethylene glycol (200) dimethacrylate, polyoxyethylene glycol (400) dimethacrylate, polyoxyethylene glycol (600) dimethacrylate, 1, the 3-butylene glycol dimethacrylate, 1, the 4-butylene glycol dimethacrylate, 1, the 6-hexanediol dimethacrylate, ethoxyquin (6) bisphenol a dimethacrylate, ethoxyquin (8) bisphenol a dimethacrylate, ethoxyquin (10) bisphenol a dimethacrylate, neopentylglycol dimethacrylate, Viscoat 295, ethoxyquin (3) Viscoat 295, ethoxyquin (20) Viscoat 295, third oxidation (3) glycerol triacrylate, third oxidation (6) Viscoat 295, at least a in pentaerythritol triacrylate and the tetramethylol methane tetraacrylate.
15. a colored filter comprises:
One substrate;
Be formed on the some barricades on this substrate, these some barricades limit some receiving spaces;
And be positioned at some color layers of these some receiving spaces, it is characterized in that:
The ink that forms these some color layers comprises: the mixture of organic solvent, colorant, initiator and high viscosity polymerizable composition and low viscosity polymerizable composition, this high viscosity polymerizable composition is full-bodied monomer or oligomer, and low viscosity polymerizable composition is low viscous monomer or oligomer.
16. colored filter as claimed in claim 15, it is characterized in that, this full-bodied monomer or oligomer are 1000 to 5000000CPS monomer or oligomer for viscosity in the time of 25 ℃, and this low viscous monomer or oligomer are monomer or oligomer below the 999CPS for viscosity in the time of 25 ℃.
17. colored filter as claimed in claim 15 is characterized in that, this full-bodied monomer or oligomer are 10000 to 2000000CPS monomer or oligomer for viscosity in the time of 25 ℃.
18. colored filter as claimed in claim 15 is characterized in that, this low viscous monomer or oligomer are 10 to 500CPS monomer or oligomer for viscosity in the time of 25 ℃.
19. colored filter as claimed in claim 15, it is characterized in that, this high viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 50% to 99.9%, this low viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 0.1% to 50%.
20. colored filter as claimed in claim 15, it is characterized in that, this high viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 50% to 80%, this low viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 20% to 50%.
21. a manufacturing method of color filters may further comprise the steps:
One transparency carrier is provided;
Form some barricades on this transparency carrier, these some barricades limit some receiving spaces;
Utilize ink jet method that ink is filled to some receiving spaces by an ink discharge device, the composition of this ink comprises: the mixture of organic solvent, colorant, initiator and high viscosity polymerizable composition and low viscosity polymerizable composition, this high viscosity polymerizable composition is full-bodied monomer or oligomer, and low viscosity polymerizable composition is low viscous monomer or oligomer;
Ink in the some receiving spaces of dry solidification, and form some color layers.
22. manufacturing method of color filters as claimed in claim 21 is characterized in that, this ink jet method comprises synchronous ink jet method or substep ink jet method.
23. manufacturing method of color filters as claimed in claim 21; it is characterized in that; further comprise a step after forming some color layers: on this substrate, form a protective layer or a conductive layer that covers barricade and color layers, or form a protective layer and a conductive layer successively.
24. manufacturing method of color filters as claimed in claim 21, it is characterized in that, this full-bodied monomer or oligomer are 1000 to 5000000CPS monomer or oligomer for viscosity in the time of 25 ℃, are monomer or oligomer below the 999CPS in low viscous monomer or the oligomer viscosity at 25 ℃ the time.
25. manufacturing method of color filters as claimed in claim 21 is characterized in that, this full-bodied monomer or oligomer are 10000 to 2000000CPS monomer or oligomer for viscosity in the time of 25 ℃.
26. manufacturing method of color filters as claimed in claim 21 is characterized in that, this low viscous monomer or oligomer are 10 to 500CPS monomer or oligomer for viscosity in the time of 25 ℃.
27. manufacturing method of color filters as claimed in claim 21 is characterized in that, the molecular weight and the chemical structure of this high viscosity polymerizable composition and low viscosity polymerizable composition are all inequality.
28. manufacturing method of color filters as claimed in claim 21, it is characterized in that, this high viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 50% to 99.9%, this low viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 0.1% to 50%.
29. manufacturing method of color filters as claimed in claim 21, it is characterized in that, this high viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 50% to 80%, this low viscosity polymerizable composition account for high viscosity polymerizable composition and low viscosity polymerizable composition mixture 20% to 50%.
30. manufacturing method of color filters as claimed in claim 21 is characterized in that, the surface tension of this ink is between 22.5 to 35 dynes per centimeter.
31. manufacturing method of color filters as claimed in claim 21, it is characterized in that this full-bodied monomer or oligomer comprise in the acrylate monomer of acrylate oligomer, five or five above sense radixes of polyester acrylic oligomer ester, the two or two above sense radixes of urethane acrylate oligomer, the two or two above sense radixes of epoxy acrylic oligomer ester, the two or two above sense radixes of two or two above sense radixes and the above-mentioned materials derivative at least a.
32. manufacturing method of color filters as claimed in claim 21, it is characterized in that this full-bodied oligomer comprises the bisphenol-A epoxy diacrylate, the bisphenol-A epoxy dimethacrylate, the amine modified bisphenol A epoxy acrylate, fatty acid modified bisphenol A epoxy acrylate, the phenolic aldehyde epoxy acrylate, the aromatic urethane diacrylate, the aromatic urethane triacrylate, aromatic urethane six acrylate, aliphatic urethane diacrylate, the aliphatic polyurethane triacrylate, aliphatic polyurethane six acrylate, polyester diacrylate, the polyester tetraacrylate, polyester six acrylate, fatty acid modified polyester six acrylate, polyester chloride acrylic ester, amine modified poly ester acrylate, aliphatics diacrylate oligomer ester and glass transition temperature are higher than in the acrylate more than 20 ℃ at least a.
33. manufacturing method of color filters as claimed in claim 21, it is characterized in that this full-bodied monomer comprises in ethoxyquin (2) bisphenol a diacrylate, ethoxyquin (3) bisphenol a diacrylate, ethoxyquin (2) bisphenol a dimethacrylate, Dipentaerythritol five acrylate and the dipentaerythritol acrylate at least a.
34. manufacturing method of color filters as claimed in claim 21, it is characterized in that this low viscous monomer comprises in the acrylate monomer of methacrylate monomer, four sense radixes of methacrylate monomer, the trifunctional radix of acrylate monomer, the two sense radixes of acrylate monomer, the trifunctional radix of two sense radixes and the above-mentioned materials derivative at least a.
35. manufacturing method of color filters as claimed in claim 21, it is characterized in that, this low viscous monomer comprises diethylene glycol diacrylate, triethylene glycol diacrylate, polyoxyethylene glycol (200) diacrylate, polyoxyethylene glycol (400) diacrylate, polyoxyethylene glycol (600) diacrylate, 1, the 3-butylene glycol diacrylate, 1, the 4-butylene glycol diacrylate, 1, the 6-hexanediyl ester, propylene glycol diacrylate, ethoxyquin (3) bisphenol a diacrylate, ethoxyquin (10) bisphenol a diacrylate, ethylene glycol dimethacrylate, the Diethylene Glycol dimethacrylate, the triethylene glycol dimethacrylate, polyoxyethylene glycol (200) dimethacrylate, polyoxyethylene glycol (400) dimethacrylate, polyoxyethylene glycol (600) dimethacrylate, 1, the 3-butylene glycol dimethacrylate, 1, the 4-butylene glycol dimethacrylate, 1, the 6-hexanediol dimethacrylate, ethoxyquin (6) bisphenol a dimethacrylate, ethoxyquin (8) bisphenol a dimethacrylate, ethoxyquin (10) bisphenol a dimethacrylate, neopentylglycol dimethacrylate, Viscoat 295, ethoxyquin (3) Viscoat 295, ethoxyquin (20) Viscoat 295, third oxidation (3) glycerol triacrylate, third oxidation (6) Viscoat 295, at least a in pentaerythritol triacrylate and the tetramethylol methane tetraacrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810134446 CN101633805A (en) | 2008-07-24 | 2008-07-24 | Ink for colored filter, colored filter and method for manufacturing colored filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810134446 CN101633805A (en) | 2008-07-24 | 2008-07-24 | Ink for colored filter, colored filter and method for manufacturing colored filter |
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| CN101633805A true CN101633805A (en) | 2010-01-27 |
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| CN 200810134446 Pending CN101633805A (en) | 2008-07-24 | 2008-07-24 | Ink for colored filter, colored filter and method for manufacturing colored filter |
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| CN102653646A (en) * | 2011-06-09 | 2012-09-05 | 京东方科技集团股份有限公司 | Ink used for color filter, and preparation methods of ink and color filter |
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| CN109324434A (en) * | 2017-08-01 | 2019-02-12 | 北京大学 | A kind of polymer dispersed liquid crystal film preparation method and polymer dispersed liquid crystal film |
| CN108528080A (en) * | 2018-03-05 | 2018-09-14 | 库尔兹压烫科技（合肥）有限公司 | A kind of cold wave foil promoting ink adhesion |
| CN117264468A (en) * | 2023-07-03 | 2023-12-22 | 高宝新材料(珠海)有限公司 | UV (ultraviolet) jet printing ink for woven bags and preparation method thereof |
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