TW201250387A - Photo-curable inkjet ink, cured film, microlens, optical component and liquid crystal display - Google Patents

Abstract

The disclosure provides a photo-curable inkjet ink which has sufficient photo-curing properties and can form cured films and microlenses having an excellent adhesion property to substrates, an excellent light transmittance and an excellent heat resistance. The photo-curable inkjet ink includes a (meth)acrylate (A) represented by a following formula (1) and a photopolymerization initiator (B). The photopolymerization initiator (B) is a photopolymerization initiator in which an absorbance in a wavelength range of 300 nm or more measured by a UV absorption spectrometry of an acetonitrile solution with an concentration of 0.001 wt% of the photopolymerization initiator is 0.1 or less. After a 100-hour heat treatment under 70 DEG C is conducted to a cured film obtained from the ink (with a membrane thickness of 2.0 μ m to 3.0 μ m), a light transmittance of the film is 98% or more at a wavelength of 400 nm.

Description

201250387 VI. Description of the Invention: [Technical Field] The present invention relates to a photocurable inkjet ink which can be preferably used for manufacturing an optical device such as a liquid crystal display. More specifically, the present invention relates to a photocurable inkjet ink suitable for use in a microlens array used in a backlight device, a transparent insulating film used in a touch panel or the like. [Prior Art] A light guide plate or the like having a microlens array used for a light source has been used for a liquid crystal display device such as a liquid crystal display, and a transparent insulating film or the like is used for the touch panel. In particular, the transparent insulating film for a light guide plate or a touch panel is required to have high transparency, and when it is used for a liquid crystal display element, the color tone is required to change (yellow) due to heat generated. Japanese Patent Publication No. Hei 2_6562 (Patent Document No. 3,192,943 (Patent Document 2), and Tehari-32, pp.* (Patent Document 3), Japanese 2〇1〇_2912 No. (Patent Document 4), Japanese Patent: Reading 5) +, Correcting Transmittance [Prior Art Document] [Patent Document] [Patent Document 1] Japanese Patent Laid-Open No. Hei 2-6562 Japanese Patent Laid-Open No. 2〇〇3192 [Patent Document 3] Japanese Patent Laid-Open No. 32 4 201250387 42580pif ^文 f4] Japanese Patent Laid-Open No. -2912 is issued by the Japanese Patent Special Open 248352 The formed cured film has a high light transmittance but a low heat resistance, and is, for example, 7 Å.广~ΤΓV 1 /Λ/Λ,, 'C under the loo hour heat treatment of the film after the mn light transmittance becomes lower - the problem 'so the hard film is used as a microlens array (4) or It is difficult to use a transparent insulating film for the panel. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and its object is to provide an optical hardening inkjet ink having sufficient photohardening H. A cured film and a microlens which are excellent in adhesion to a substrate and light transmittance, and further excellent in heat resistance are formed. The inventors of the present invention have found that the photocurable inkjet ink is excellent in photocurability, and that the curable film and the microlens are excellent in heat resistance, and the photocurable spray is completed. The ink contains a specific (fluorenyl) acrylate and a photopolymerization initiator, and is 7 Å. The light transmittance at a wavelength of 4 〇〇 nmT of the film after the loo-hour heat treatment of the cured film obtained by the ink (having a film thickness of 2 〇 μηι 3 3 〇 μιη) was 98% or more. That is, the present invention includes the following items. [I] A photocurable inkjet ink comprising (fluorenyl) acrylate (A) represented by the following formula (I) and a photopolymerization initiator (B), the above photopolymerization initiator (B) The absorbance in the wavelength region of 300 201250387 nm or more obtained by ultraviolet (Ultraviolet, UV) absorption spectroscopy of an acetonitrile solution having a photopolymerization initiator concentration of 0.001 wt% (% by weight) as follows It is 0.1 or less, and ~3 is hard (10) obtained from the 11 water (turned to 2.0 哗 light-transmissive heat treatment of the film after the wavelength side of the film [Chemical 1]

(1 (1), !! R1 is independently hydrogen or a group having a carbon number of 1 to 6 'R has an alicyclic structure or a (four) structure (however, it does not contain the following formula (2-1) or formula (2-2) The structure represented by the organic group ～10 is an integer). (2) The photocurable inkjet ink according to [1], wherein the total amount of the photocurable inkjet ink is converted (solid content conversion) 100 wt%, the above photopolymerization initiator (b) is contained in an amount of from i wt% to 20 wt%. [3] The photocurable inkjet ink according to [1] or [2] wherein the photoinitiator (B) is selected from the group consisting of phenylacetic acid vinegar (〇Xyphenyi acetic acid 6 201250387 42580 pif acid ester). It is at least one compound selected from the group consisting of a starter, a phenylglycolate ( phenylglycolate) initiator, and a hydroxyphenyl ketone initiator. [4] The photocurable inkjet ink according to any one of [1], wherein the photopolymerization initiator (B) is selected from the group consisting of hydroxyphenyl acetate initiators, and The base acetic acid g is at least one compound selected from the group consisting of initiators. [5] The photocurable inkjet ink according to any one of [1] to [4] wherein the photopolymerization initiator (B) is selected from the group consisting of hydroxyphenylacetic acid 2_[2_sideoxy group- 2-[2-ox〇-2-phenyl-acetoxy-ethoxy]-ethyl ester, 2-hydroxyl-acetoxy-ethoxy]-ethyl ester At least one selected from the group consisting of: 0Xy_phenyl_acetic acid 2-[2-hydroxy-ethoxy]-ethyl ester and phenyl glyoxylic acid methyl ester Compound. [6] The photocurable inkjet ink according to any one of [1] to [5] wherein, in the above formula (1), R2 is selected from the group consisting of cyclohexane, cyclopentane, and bicyclo [2.2] .1] heptane, tricyclodecane, tetrahydrofuran, lactone of 5 or more, dicyclopentane, dicyclopentene, adamantane, piperidine, quinone ring, ring shrinkage Furfural and 153,5_three. At least one organic group in the group consisting of Qin_2, 4, 6_3. [7] The photocurable inkjet ink according to any one of [1] to [6] wherein the (meth) acrylate (A) is selected from cyclohexyl (meth) acrylate, (曱) Tetrahydrofurfuryl acrylate, isodecyl acrylate, (methyl) 201250387. Dicyclopentenyl (meth)acrylate, tricyclic fluorene diacetate bis(indenyl) acrylate Ester, cyclohexyldidecyl bis(indenyl) acrylate, γ-butyrolactone (decyl) acrylate, iso-cyanuric acid oxirane modified bis(indenyl) acrylate, isomeric cyanide At least one compound selected from the group consisting of acid oxirane modified tris(fluorenyl) acrylate and ε-caprolactone modified tris(propylene decyloxyethyl) isomeric cyanurate. [8] The photocurable inkjet ink according to any one of [1] to [7] further comprising a compound having a radical polymerizable double bond other than the above (fluorenyl) acrylate (Α) ( C). The photohardenable inkjet ink as disclosed in (9), wherein the above compound ί} (C) is selected from the group consisting of n-butyl (meth) acrylate, (-mercapto) acrylic acid, third-fluorene, (meth)acrylic acid laurel Ester, (mercapto)acrylic acid _2_ylidylethyl ester, (hydroxy)(hydroxy) hydroxypropyl (meth) acrylate, (meth) methoxy acetate, (fluorenyl) Acetyl ethoxyacetate, (meth) propylene sulfonate, ethylene glycol di(decyl) acrylate, diethylene glycol bis(decyl) acrylate, polyethylene glycol Di(meth)acrylate, dipropylene glycol dimercapto) acrylate, 1,4-butanediol di(meth)acrylate, 16 hexanediol di(methyl)propionate, neopentyl glycol Di(meth)acrylate, trimethylol(mercapto)acrylic acid vinegar, pentaerythritol tris(meth)acrylic acid vinegar, diquat/tetraol hexa(methyl) propyl ride g, and (4) At least one compound of the group consisting of modified diquaternary acrylic acid brewings ([1G], such as (1) to [9] towel--the photo-curable inkjet ink, having a more G-containing surfactant (D). [u] as [1] The photocurable inkjet ink according to 0] wherein the above-mentioned boundary is 8 201250387 42580 pif active agent (D ) is selected from the group consisting of a synephthalic surfactant, an acrylic surfactant, and a fluorine surfactant. [12] The photocurable inkjet ink according to any one of [1] to [11] further comprising an ultraviolet absorber (E). [13] such as [1] The photocurable inkjet ink according to any one of [12], which further comprises an antioxidant (F). [14] A cured film which is a photocurable spray according to any one of [15] A microlens obtained by hardening the photocurable inkjet ink according to any one of (1) to [13]. [16] An optical component comprising The microlens according to [15]. [17] A liquid crystal display comprising the optical component according to [6]. [Effect of the Invention] The photocurable inkjet ink of the present invention has good photocurability. A cured film and a microlens which exhibit high light transmittance, high heat resistance, and high strength and are excellent in adhesion to a substrate can be formed. In the photocurable inkjet ink of the invention, a microlens having good adhesion can be formed on the surface liquid-repellent substrate. [Embodiment] [1. Photocurable inkjet ink] The photocurable inkjet ink of the present invention (below) Also known as "ink of the present invention") is a photocurable inkjet ink comprising (fluorenyl) acrylate (A) represented by the above (1)) and a photopolymerization initiator (B), The photopolymerization initiator (B) is a photopolymerization initiator as follows: 201250387 UV absorption light from a acetonitrile solution having a concentration of 0.001 wt% of a photopolymerization 3 initiator, "3" or more obtained by measuring 4" nm The absorbance in the wavelength region is below the completion, and the cured film (having a film thickness of 2 〇μηι to 3.0 μm) obtained from the ink at a wavelength of 4 〇〇 nm after heat treatment for 100 hours at C The light transmittance shows 98% or more. Since the ink of the present invention contains the specific (meth) acrylate (A) and the photoinitiator (B), the photocurability is good, and light transmittance, heat resistance, strength, and adhesion to the substrate can be formed. A cured film and a microlens having excellent properties, in particular, can form a cured film and a microlens having little change in light transmittance even under a severe environment such as high temperature. In the following description, the "cured film and microlens" are also referred to as "cured film or the like". Further, the ink of the present invention may optionally include a compound having a radical polymerizable double bond other than the above (mercapto)acrylic acid vinegar (A), a surfactant (D), and an ultraviolet absorber (E). ), an antioxidant (f), a polymerization inhibitor, a phenolic hydroxyl group-containing resin, a maleimide compound, a melamine resin, a sulphur coupling agent, an epoxy resin, an epoxy curing agent, and a solvent. The ink of the present invention is preferably colorless in view of light transmittance, and may further contain a colored compound insofar as it does not impair the effects of the invention. In this case, it is preferable that the color of the obtained cured film or the like is not yellowish, for example, a blue compound can be used. Further, for example, when the state of the hardened film or the like is inspected, a coloring agent may be contained in order to easily distinguish it from the substrate. F 1 2 1. The (methyl) acrylate represented by the formula (1) is high in the water of the 11th water, and the sulfhydryl group which is represented by the above formula 〇) is also referred to as "the compound (4). ”^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ j曰 and methyl are called _ (four) or one. ==1)), '-R1 is independently hydrogen or carbon number is 1~6 can be ί _!/, especially if η Rl is independently Η or CH3, then the material can be used for high Specific examples of the light-transmitting ancient formula (1) towel R2 having an alicyclic structure or a heterocyclic ring structure may be exemplified by those selected from the group consisting of cyclohexanone, ring sister, Λ三环癸院, tetrahydrofuran, At least 5 of the group consisting of 酉 酉, 曱 烧, ,, 戊, 眺 眺 醯 环状 环状 环状 环状 环状 环状 环状 环状 环状 环状 环状 从 从 从 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少R2 in the formula (1) is one selected from the group consisting of cyclohexane, bis[2.2.1], alkane, tricyclodecane, tetrahydrofuran, dicyclopentane and iota, 3,5-azine; Λ6-triazine. At least one type of organic group in the group can obtain an ink excellent in light-transmissive property, and a cured film which is excellent in heat resistance not only for the substrate, but also for the substrate can be obtained. good. (10) R2 in the above-mentioned state does not contain the high-strength of the above formula GW or the formula 5, and the high-adhesiveness to the substrate, etc., and the alicyclic structure or the squeezing agent of the ink contains (2-1) or ^Miscellaneous,,,. Structure of resin. On the other hand, the ring represented by the formula (10) or the formula (2-2) containing (meth)acrylic acid g having the structure represented by the above formula >& S (2 2) is susceptible to enthalpy. The second brother's 'strict influence' is especially suitable for high-temperature and high-humidity conditions, and it is easy to open a hardened material formed by the following inks, which has a tendency to be long-term reliable, and the ink only contains the above formula (2·1). The (meth) acrylate of the structure represented by the formula (-) is a compound (Α) of the present invention. Specific examples of the compound (Α) include (meth)acrylic acid cyclohexyl ester, (A) Base) cyclopentyl acrylate, isophthalic acid (meth)acrylate, monopentyl (meth)acrylate, dicyclopentenyloxyethyl (meth)acrylate, (meth) propylene S-% Pentyl ester, (meth)propionic acid _4_butylcyclohexyl ester, (meth)acrylic acid-2-methyl-2-gold sulphuric acid vinegar, (methyl) acrylic acid _2 ethyl _2 King Kong Shun, (Mercapto) Acrylic Acid-3,5-Dimethyl_7·After the fund has just burned vinegar, (meth)acrylic acid-3-carbyl-1-golden vinegar, methyl propylene oxime Base-reduced (meth) acrylate, (meth) acrylate tetrahydrofurfuryl ester, caprolactone modified (meth) acrylic acid tetrahydrofurfuryl ester, tricyclodecane dimethanol di(methyl) Acrylate, cyclohexyl Alcohol mono (meth) acrylate, cyclohexyl dimethanol di(meth) acrylate, pentamethyl-based (meth) acrylate, (methyl) 12 with quinone ring 2012 50387 42 ^» Upif acrylic Ester, iso-cyanuric acid oxime ethane modified bis(indenyl) acrylate, iso-cyanuric acid ethylene oxide modified tri(meth) acrylate, ε_caprolactone modified bis (propylene醯oxyethyl)isocyanurate, cyclic trimethylolpropane decyl aldehyde (mercapto) acrylate, γ-butyrolactone (fluorenyl) acrylate vinegar and mevalonolactone (曱Base) acrylate. " Among them, especially if (decyl) cyclohexyl acrylate, (indenyl) tetrahydroanthracene acrylate, (meth)acrylic acid (tetra), biphenyl fluorene (meth) acrylate, tricyclodecane Dimethanol di(meth)acrylate, cyclohexyl diol bis(indenyl) acrylate, iso-cyanuric acid ethylene oxide modified bis(indenyl) acrylate, iso-cyanuric acid epoxy Burning modified tris(fluorenyl) acrylate, & caprolactone modified tris(propylene oxyethyl) isomeric cyanurate or γ-butyrolactone (曱) acrylate to obtain light An ink excellent in curability is preferable because it can obtain a cured film which is excellent in light transmittance and excellent in heat resistance. Further, if using (meth)acrylic acid tetrahydroanthracene vinegar, (meth)acrylic acid cyclohexanol, (meth)acrylic acid dicyclopentan vinegar, tricyclic hydrazine 6 dimethanol di(methyl hydrazine) propyl Rare _ or ε-hexyl vinegar modified ternary (acrylic oxyethyl) isotrimeric vinegar as a compound (Α), it is better to obtain a ship-resistant hardening. The above compound (Α) may be a ruthenium compound selected from the above compounds or the like, or a mixture of two or more compounds. When two or more kinds of the compound (4) are used, the photocurability of the ink, the adhesion of the hardened material, the heat resistance, and the adhesion to the substrate are recorded as monofunctional compounds (4) and more. A mixture of functional compounds (A). 13 201250387 Furthermore, the term "monofunctional compound" means that there is an i molecule! The term "polyfunctional compound" as a compound having a polymerizable group such as a fluorenyl group is a compound having two or more polymerizable groups such as a (fluorenyl) acryl. As the compound (A), a compound produced by a known method can be used, and a commercially available product can also be used. As a commercial item, cyclohexyl acrylate (trade name: Light Ester CH; manufactured by Kyoeisha Chemical Co., Ltd.), cyclohexyl acrylate (trade name: V#155; Osaka Organic Chemical Industry ( Manufactured), tetrahydrofurfuryl acrylate (trade name: LightEsterTHF; manufactured by Kyoeisha Chemical Co., Ltd.), tetrahydrofurfuryl acrylate (trade name: Light Acrylate THF-A; Kyoeisha Chemical Co., Ltd.) Manufactured, isopropyl methacrylate (trade name: SR-423D; manufactured by Sartomer, USA), dicyclopentenyl acrylate (trade name: FA-511AS; manufactured by Hitachi Chemical Co., Ltd.), bicyclocene Pentenyloxyethyl ester (trade name: FA_512AS; manufactured by Yanli Chemical Industry Co., Ltd.), dicyclopentene acrylate (trade name: FA-513AS; manufactured by Yanli Chemical Industry Co., Ltd.) Tricyclodecanedioxane diacrylate (trade name: IRR214-K; manufactured by DaicelCytec (share)), iso-cyanuric acid ethylene oxide modified triacrylate (trade name: M-315 · 'East Asian synthesis (share) manufacturing), and ε_Caprolactone modified tris(propenyloxyethyl)isocyanate (trade name: Μ-327; manufactured by East Asia Synthetic Co., Ltd.). In the ink t of the present invention, the content of the above compound (a) is 1 〇 wt% to 8 若 201250387 42580pif if it is 1 〇〇 wt% based on the total amount of the ink (in terms of solid content).

In the case of Wt%, not only an ink having excellent photocurability but also a cured film having excellent light transmittance and excellent balance between adhesion and strength of the substrate can be obtained, and therefore, the content of the compound (A) is more preferably 15 wt% to 7 wt%, more preferably 20 wt% to 65 wt%, particularly preferably 25 wt% to 65 wt〇/〇. &lt;1·2·Photopolymerization initiator (B) &gt; The ink of the present invention contains a photopolymerization initiator (8). The photopolymerization initiator (8) is a photopolymerization initiator which is obtained by a υν absorption spectrum of an acetonitrile solution having a concentration of a 1:1 wt% of a disproportionation initiator ((10)10 (trade name) manufactured by Hitachi Advanced Technology Co., Ltd. The basis of the obtained wavelength region of the range of nm or more is 〇] or less, preferably GQ5 or less. 2 is the photopolymerization starting enthalpy (8), and is not particularly limited, but is preferably a compound which generates radicals by irradiation of an external line or visible light, and is a starting agent for phenylacetaldehyde vinegar. Starting from the viewpoint of the initiator, in particular, the light curability of the ink, the light transmittance of the cured film of ^: two, etc., the 'Better vinegar-based starter or phenylglyoxylic acid The specific initiator of the dimethoxy phthalocyanine initiator (Β) can be exemplified by 2, 2, 2: 1, 2, 1 cyclohexyl-phenyl, and 1 2 (four) alumina Base-fired _1_0, 1_[4-(2·-ylethoxy)-stupid;] 2, knee 2_methyl+propyl as ketone, 2-transbasic small (tetra)^ Base rhyme, phenylacetic acid ethoxylate], and phenylethyl (tetra) methyl vinegar. "In particular, if phenylacetic acid benzoic acid 2 -phenylethyl 15 201250387 is used to make oxy-ethoxy] - Ethyl vinegar, phenylacetic acid 2_[2-based-ethoxy]-ethyl, phenylglyoxylate, hydroxy-cyclohexyl-phenyl-one, excellent photohardenability 'While a cured film having excellent light transmittance is obtained, it is preferred to use hydroxyphenyl B. 2_[2_Sideoxyphenyl-acetoxy-ethoxy]•ethyl ester, hydroxyphenylacetic acid 2_[2-hydroxy-ethoxy]-ethyl ester, phenylglyoxylate decyl ester, then It is preferable to obtain an ink which is more excellent in photocurability. The photopolymerization initiator (B) may be one type of compound or a mixture of two or more types of compounds. As the photopolymerization initiator (B), a compound produced by a known method can be used, and a commercially available product can also be used. The commercially available product is, for example, 2,2,-dimethoxy-1,2-diphenylethidin-1-one (trade name: IRGACURE 651; manufactured by BASF), 1-thio-cyclohexyl- Phenyl-ketone (trade name: IRGACURE 184; manufactured by BASF), 2-light-based-2-mercapto-1-phenyl-propanone-same (trade name: IRGACURE 1173; manufactured by BASF), 1-hydroxy-cyclohexyl- Mixture of phenyl-ketone and diphenyl ketone (trade name: IRGACURE 500; manufactured by BASF), 1·[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1- Propane-1-one (trade name: IRGACURE 2959; manufactured by BASF), 2-hydroxy-l-{4-[4_(2-hydroxy-2-methyl-propenyl)-]]phenyl] 2-phenyl-2- Methylpropan-1-one (trade name: IRGACURE 127; manufactured by BASF), 2-[2-o-oxy-2-phenyl-ethyloxy-ethoxy]-ethyl hydroxyphenylacetate and hydroxybenzene a mixture of 2-[2-hydroxy-ethoxy]-ethyl acetate (trade name: IRGACURE 754; manufactured by BASF), phenylglyoxylate (trade name: DAROCURMBF; manufactured by BASF), and 1-hydroxy- Cyclohexyl-phenyl 201250387 42580pif-ketone with bis(2,6-dimethoxyphenyl(tetra)yl)_2,4,4•trifyl-pentyl oxidized scale A mixture of s(2,6-dimethoxy benzoyl)-2,4,4-trimethyl-pentyl phosphine oxide (trade name: IRGacurei 8®; manufactured by BASF). In the ink of the present invention, if the content of the photopolymerization initiator (B) is i wt% to 20 Wt% with respect to the total amount of the ink (in terms of solid content), the content of the photopolymerization initiator (B) is It is preferable that the ink of the photopolymerization initiator (B) has a ruthenium of 2 wt ° / 〇 15 15% by weight, in which the ink having particularly excellent ultraviolet light curability is obtained, and a cured film having excellent light transmittance is obtained. Further, it is more preferably 3 wt 〇 / 〇 10 10%% 〇 &lt; 1.3. Compound (C) having a radical polymerizable double bond other than the compound (A) &gt; Free radical polymerizability other than the above compound (A) The double-bonded compound (C) can transmit light (ejectability) and photocurability of an inkjet device without using the ink of the present invention, and light transmittance and heat resistance of a cured film obtained from the ink. Added within the scope of the impact. From the viewpoints of light curability of the ink, light transmittance of the obtained cured film, heat resistance, adhesion to a substrate, and the like, it is preferred to use only a monofunctional (fluorenyl) acrylate as the above. In the case of the compound (A), a polyfunctional compound (C) is used, and when only a polyfunctional (meth)acrylic acid is used as the above compound (A), a monofunctional compound (匚) is used. In other words, the ink of the present invention preferably contains a monofunctional polymerizable compound and a viewpoint of light curability of the ink, light transmittance of the obtained cured film, heat resistance, adhesion to a substrate, and the like. Functional Polymerization 17 201250387 HZDOUplf Both. Examples of such an ink include an ink containing a monofunctional compound (A) and a polyfunctional compound (A), an ink containing a monofunctional compound (A) and a polyfunctional compound (C), and a monofunctional compound. (c) and an ink of the polyfunctional compound (A). The above compound (C) is not particularly limited, and particularly, n-butyl acrylate, n-butyl (meth) acrylate, lauryl (meth) acrylate, 2-hydroxy acrylate (meth) acrylate Ester, 2-hydroxypropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, decyloxyethyl (meth)acrylate, ethoxyethyl (meth)acrylate, (曱Methyl butyl acrylate, ethylene glycol di(decyl) acrylate, diethylene glycol di(decyl) acrylate, polyethylene glycol di(meth) acrylate, dipropylene glycol di(decyl) Acrylate, butanediol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate, neopentyl bis(indenyl)acrylate, trimethylolpropane tris(曱) Acrylate, pentaerythritol tris(fluorenyl) acrylate, and/or dipentaerythritol hexa(meth) acrylate, caprolactone modified dipentaerythritol hexa(indenyl) acrylate as the above compound (C) In the case of 'available ink having excellent sprayability and photocurability', light transmittance and heat resistance can be obtained. Fully hardened film excellent in the balance, it is preferred. Examples of the other compound (C) include methyl (meth)acrylate, ethyl (meth)acrylate, isopropyl (meth)acrylate, isoamyl (meth)acrylate, and (meth)acrylic acid. Butyl ester, (mercapto) pentyl acrylate, n-hexyl (meth) acrylate, heptyl (meth) acrylate, octyl (meth) acrylate, (decyl) isooctyl acrylate, (meth) acrylate - 2-ethylhexyl ester, decyl (meth) acrylate, decyl methacrylate, isodecyl (meth) acrylate, (methyl) propyl 201250387 olefin 1 - ester, (meth) acrylate Lithyl ester, 2-hydroxyphenoxypropyl (meth) acrylate, ethoxy diethylene glycol (fluorenyl) acrylate, methoxy-propanol (meth) acrylate, ethyl two Glycol (meth) acrylate, tetraethyl-alcohol di(meth) acrylate, bisphenol F ethylene oxide (EO) modified one (曱 曱) acrylate, bisphenol AEO modified two (A) Acrylate, glycerol mono(indenyl) acrylate, trifluoroethyl (meth) acrylate, glycidyl (meth) acrylate, ) methyl glycidyl acrylate, 3-methyl-3-(methyl) propylene decyloxy oxetane, 3-methyl-3-(methyl) propyl ethoxyethyl oxalate Cyclobutane, 3_ethyl_3·(meth)acryloxymethyloxetane, 3-ethyl-3-(methyl)propenyloxyethyloxetane, P-vinylphenyl-3-ethyloxetane-3-yl oxime ether, 2-phenyl-Hmethyl)propenyloxymethyloxetane, 2-trifluoromethyl _ 3_(fluorenyl) propylene decyloxy oxetane, (mercapto)acrylic acid (3-ethyl-3-oxetanyl) vinegar, polymethyl phthalate mega macromonomer (macromonomer), N-vinylformamide, (fluorenyl) acrylamide, N,N-dimercapto (meth) acrylamide, n,N-diethyl(fluorenyl) acrylamide, N,N-monoamidopropyl (decyl) acrylamide, N-isopropyl (meth) acrylamide, N-hydroxyethyl (meth) acrylamide, hydrazine phenyl cis Equinone imine, N-cyclohexyl maleimide, vinyl pyridine, trihydroxymethyl propane triethoxyethyl (meth) acrylate, (mercapto) acrylic acid, (fluorenyl) Acrylic acid dimer, crotonic acid, α-gas acrylic acid, cinnamic acid, maleic acid, fumaric acid, β- thioethyl (meth) acrylate, ω- slow polycaprolactone ( Mercapto) acrylate, succinic acid mono [2-(methyl) propylene oxyethyl], phthalic acid mono-ethyl (decyl) acrylate, maleic acid mono [2_ (曱基)丙201250387 • lZ.JOV/pif olefinic oxyethyl], 2-(methyl) propylene methoxyethyl phosphate, phenyl (meth) acrylate, benzyl (meth) acrylate Ethylene oxide and/or ring of ester, (mercapto) decylphenoxyethyl acrylate, (2-mercapto)acrylic acid 2-phenoxyethyl ester, (meth)acrylic acid 2-phenoxyethyl ester Oxypropane addition monomer, 2-hydroxy-3-phenoxypropyl acrylate, vinyl toluene, styrene, mercaptostyrene, gas methyl styrene, and polystyrene macromonomer. The above compound (C) may be one type of compound or a mixture of two or more types of compounds. In the ink of the present invention, if the content of the above compound (c) is from 1 wt% to 85 wt% with respect to the total amount of the ink (in terms of solid content) of 100 wt%, it is easy to adjust the ink viscosity, and in addition, light can be obtained. A good ink having excellent curability is preferable because a cured film having excellent light transmittance and adhesion to a substrate can be obtained. &lt;1.4. Surfactant (D) &gt; The ink of the present invention may be used to improve the wettability of the substrate, the film surface uniformity of the cured film obtained from the ink, and the adhesion to the substrate. Contains a surfactant. The surfactant (D) is preferably an anthrone-based surfactant, a acrylate surfactant, a Duntec surfactant, or the like. Specific examples of the surfactant include BYK-300, BYK-306, BYK-335, BYK-310, BYK-341, BYK-344, and BYK-370 (trade name: manufactured by BYK-Chemie Japan (share)) Isoxanone surfactant, BYK-354, BYK-358 and BYK-361 (trade name: BYK-Chemie Japan (manufactured by BYK)) acrylic interface 20 201250387 42580pif Active agent ' DFX-18, Ftergent250, Ftergent 251 (trade name: manufactured by Neos), a fluorine-based surfactant such as Megafac F-475, F-477, F-553, and F-554 (trade name: manufactured by DIC). In addition, when the surfactant (D) is a compound having a reactive functional group, the surfactant is less likely to form a microlens having a small diameter and height variation from a cured film formed by an inkjet method. Therefore, it is better. The reactive functional group is preferably a hydroxyl group, a carboxyl group, an acid anhydride 'amine group, an epoxy group, an oxetane group, an oxazoline group, an oxazole group, and a (fluorenyl) acrylonitrile group. The epoxy group, the oxetane, and the (fluorenyl)propenyl group are most preferably (mercapto)propenyl groups. Specific examples of the surfactant having a (fluorenyl) acrylonitrile group include RS-72K (trade name: DIC (manufactured by DIC), BYK UV 3500, BYK UV 3570 (trade name: BYK-Chemie Japan) (Stock) manufacturing), TEGO Rad 2220N, TEGO Rad 2250, TEGO Rad 2300, TEGO Rad 2500 (trade name: manufactured by Evonik Degussa Japan). Further, as the surfactant having an epoxy group, RS-21 IK (trade name: manufactured by DIC) can be cited. The surfactant (D) which can be used in the ink of the present invention may be one type of compound or a mixture of two or more types of compounds. In the ink of the present invention, if the content of the surfactant (D) is 〇〇1 wt% to 1% by weight based on the total amount of the ink (in terms of solid content), the surfactant is not easily sprayed. It is preferable that the hardened film formed by the ink method bleeds out to form a microlens having a small variation in diameter and height. &lt;1.5. Ultraviolet absorber (e) &gt; 21 201250387 The ink of the present invention may contain an ultraviolet absorber (E) in order to prevent deterioration of the obtained cured film or the like due to light such as a backlight. Examples of the ultraviolet absorber (E) include 2-(5-methyl-2-hydroxyphenyl)benzotrizol and 2-(3,5-di-t-butyl-2-hydroxyphenyl)benzene. And three saliva, 2_(3,5_--dibutyl-2-hydroxyphenyl)_5_gas benzotriazole, 2_(3,5-di-p-pentyl-2-hydroxyphenyl)benzo a benzotriazole compound such as triazole, a triazine compound such as 2_(4,6-diphenyl-1,3,5-tris-methyl-2-yl)-5-[(hexyl)oxy]-phenol, 2_ A diphenyl ketone compound such as hydroxy-4-n-octyloxydiphenyl ketone or a oxalic acid anilide compound such as 2-ethoxy-2'-ethyl oxalyl benzoic acid. The ultraviolet absorber (E) which can be used in the ink of the present invention may be one type of compound or a mixture of two or more types of compounds. In the ink which is not invented, the content of the ultraviolet absorber (E) is usually 3% by weight or less based on the total amount of the ink (100% by weight of the solid content), and it is preferable from the viewpoint of the effect of addition and the curability. 〇〇〇5 wt% 〜2 wt0/〇. &lt;1.6. Antioxidant")&gt; The ink of the present invention may contain an antioxidant (F) in order to prevent oxidation of the obtained cured film or the like. (F), exemplified by: triethylene glycol-bis-tert-butyl_5-fluorenyl-4-hydroxyphenyl)propionate], hydrazine, 6-hexanediol_double [3 (3,5_ _ 2nd 1 yl hydroxy hydroxy) propionate], octadecyl-3_(3,5·di-t-butylphenyl)propionic acid vinegar, 3,5_di-t-butyl butyl Diethyl phenyl phosphinate: an amine compound such as a hindered phenol compound, n-butylamine, triethylamine or diethylaminodecyl acrylate. 22 201250387 42580pif Antioxidant useful in the ink of the present invention (F) may be a compound of a kind or a mixture of two or more kinds of compounds. &quot;In the ink of the present invention, 100% by weight of the antioxidant (F) relative to the total amount of the ink (in terms of solid content) The amount is usually 3 or less, and it is preferably 5 pains to 2 wt% from the viewpoints of the effect of addition and coating stability, etc. &lt;1.7. Others&gt; In order to enhance various characteristics, the ink of the present invention may be used. The invention does not impair the effects of the present invention, and includes other components such as a polymerization inhibitor, a resin containing a hetero die, a maleimide compound, a melamine resin, a decane coupling agent, an epoxy resin, an epoxy curing agent, and a solvent. &lt; 1.7-1. Polymerization inhibitor&gt; The ink of the present invention may contain a polymerization inhibitor in order to improve storage stability. Specific examples of the polymerization inhibitor include 4-methoxyphenol, and the desired phenophene. ° phenothiazine. Among them, when phenothiazine is used, an ink having a small increase in viscosity even after long-term storage can be obtained, which is preferable. The polymerization inhibitor which can be used in the ink of the present invention can be used. It is a mixture of two or more kinds of compounds. In the ink of the present invention, the content of the polymerization inhibitor is 〇〇1 wt% with respect to the total amount of the ink (solid content for the nose). %~1 wt%, then you can get Even if the ink with a small increase in viscosity is stored for a long period of time, it is preferable, and if the balance with other characteristics is considered, the content of the polymerization inhibitor is more preferably 〇1 wt% to 0.5 wt%, and even more preferably 0.01 wt. %~0.1 wt〇/0. 23 201250387 ^OBUpif Ί/-2. Solvent&gt; Sprayability and photocurability at the time of non-destructive use of the nozzle ink method, and adhesion of the obtained hardened material to the substrate In the range of light transmittance, the ink of the present invention may contain a solvent. When it is used for heating and the ink jet head is heated during coating, it is preferred to use a solvent-free ink. As the material of the present invention, it is preferable that the agent is sprayed by the inkjet method. In the case of 12, it is a solvent having a boiling point of loot 〜30 (TC w 卞 00 c. A specific example of butyl acetate, propionic acid TS, and lactic acid B. vinegar, butyl acetate, methoxyacetic acid A = acetic acid methyl acetate, glycolic acid ethoxy acetic acid butyl vinegar, ethoxyacetic acid methyl hydrazine t, hydrazine: oxyacetic acid ethyl vinegar, methyl propionate vinegar, 3-propionic acid B, 3 · A day Ethyl oxyacetate, ethyl acetoacetate, 3-ethoxypropionic acid formazan,: acid methyl vinegar, 3-methoxypropionic acid methyl vinegar, 2-propionic acid ethyl acetate, oxy Ethyl propionate, 2_ via Aku, 2_methoxypropionic acid, 2^^, 2, methoxypropionic acid, methyl vinegar, 2, ethoxypropionic acid, B, Lai, 2_Ethoxy 2-oxy-2, decylpropionic acid, 2, A, A/C, _2, thioglycolic acid, oxy-2-mercaptoic acid, Azaki ^· · Methyl propyl methacrylate, Ethyl propyl vinegar, Ethyl acetate, Methyl acetate, Ethyl acetate, Ethyl acetate, Ethyl acetate, Ethyl pyruvate, Ethoxylate, Ethoxylate, Alcohol, Alcohol, Propylene glycol, dipropylene glycol, tris, %, 1,4-butanediol, ethylene glycol 24 201250387 42580pif monoisopropyl ether, ethylene glycol monobutyl ether Propylene glycol monoterpene ether, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, dipropylene glycol monoethyl acetate, monopropanol monobutyl acetate, ethylene Alcohol monobutyl bond acetate, cycloheximide, cyclopentanone, diethylene glycol monoterpene scale, diethyl alcohol monomethylglycolic acid udiol monoethyl _, diethylene glycol single ethyl sing Diethylene glycol monobutyl bond, diethylene glycol monobutyl acetate, diethylene dimethyl ether, diethylene glycol diethyl ether, diethylene glycol decyl ethyl ether, hydrazine, pre-toluene, Anisole, γ-butyrolactone, dimethyl acetamide, sulfhydryl-2-β ratio slightly biting oxime and dimethyl methoxide siting _. Solvents which can be used in the ink of the present invention In the ink of the present invention, the amount of the solvent is 100% by weight based on the total amount of the ink (in terms of solid content), and the content of the solvent is 1 wt% to 6 〇wt. %, then Yuli; When the inkjet coating ink is applied, the nozzle opening of the inkjet head becomes less likely to be clogged, so it is preferable. If the balance with other characteristics is considered, the solvent content is better. It is i 5 〇 wt / ί» 'and more preferably 1 wt% ~. <1.7-3. Epoxy resin> τ people ί The strength of the hardened material obtained is improved, and the ink of the present invention may also contain epoxy In the case of a resin having at least one structure represented by the following formula (2-1) or the formulas ^, ^, there is no particular limitation 25 201250387 [Chemical 3]

(2-1) (2-2) Specific examples of the epoxy resin include novolak type (phenol novolac type and cresol novolak type), bisphenol A type, bisphenol F type, and diphenol decane. Type, hydrogenated bisphenol A type, hydrogenated bisphenol F type, double s type, four tetraphenylolethane type, bixylenol type, biphenol type epoxy resin, alicyclic type and The heterocyclic epoxy resin a, and the epoxy resin having a cyclopentadiene skeleton or a naphthalene skeleton are preferably a novolak type, a bisphenol A type or a bisphenol F type or a triphenol terpene type epoxy resin. As the epoxy resin, a resin produced by a known method can be used, and a commercially available product can also be used. Examples of commercially available products include jER828, jER834, and jER10 (M, jER1004 (trade name: manufactured by Mitsubishi Chemical Corporation), Epiclon 840, Epiclon 850, Epiclon 050, and Epiclon 2055 (trade name: DIC (manufactured by DIC)), Epotohto YD-011, Epotohto YD-013, Epotohto YD-127, Epotohto YD-128 (trade name: manufactured by Niigata Iron Chemical Co., Ltd.), DER317, DER331, DER661, DER664 (trade name: Dow Chemical Japan (Stock) Manufacturing), Araldite 6071, Araldite 6084, Araldite GY250, Araldite GY260 (trade name: manufactured by Huntsman Japan (stock)), 26 201250387 42580pif

Sumi-Epoxy ESA-011 ' Sumi-Epoxy ESA-014 ' Sumi-Epoxy ELA-115, Sumi-Epoxy ELA-128 (trade name: Sumitomo Chemical Industries, Inc.), AER330, AER331, AER661, AER 664 (trade name: manufactured by Asahi Kasei E-Materials (share)) bisphenol A type epoxy resin; jER152, jER154 (trade name: manufactured by Mitsubishi Chemical Corporation), DER431, DER438 (trade name: Dow Chemical Made in Japan, Epiclon N-730, Epiclon N-770, Epiclon N-865 (trade name: DIC (manufactured by DIC), Epotohto YDCN-701, Epotohto YDCN-704 (trade name: Xinyi Iron Chemical ( Manufactured), Araldite ECN1235, Araldite ECN1273, Araldite ECN1299 (trade name: manufactured by Huntsman Japan (share)), XPY307, EPPN-201, EOCN-1025, EOCN-1020, EOCN-104S, RE-306 (trade name: Sakamoto Chemical Co., Ltd., Sumi-epoxy ESCN-195X, Sumi-epoxy ESCN-220 (trade name: Sumitomo Chemical Industries Co., Ltd.), AERECN-235, AERECN-299 (trade name: Asahi) Kasei E-Materials (share) manufacturing) Lacquer-type epoxy resin; Epiclon 830 (trade name · DIC (manufactured by DIC)), jER807 (trade name: Mitsubishi Chemical (stock)), Epotohto YDF-170 (trade name: Nippon Steel Chemical Co., Ltd.) Bisphenol F type epoxy resin such as YDF-175, YDF-2001, YDF-2004, Araldite XPY306 (trade name: manufactured by Huntsman Japan)

Epotohto ST-2004 ' Epotohto ST-2007 ' Epotohto ST-3000 (trade name: Nippon Steel Chemical Co., Ltd.) and other hydrogenated bisphenols 27 201250387 ^j〇\jpu A type epoxy resin;

Celloxide2021P (trade name: manufactured by Daicel Chemical Industry Co., Ltd.), Araldite CY175, Araldite CY179 (trade name: Huntsman)

Japan (share) manufacturing) alicyclic epoxy resin; YL-6056, YX-4000, YL-6121 (trade name: manufactured by Yuling Chemical Co., Ltd.) and other bisphenol or biphenol type epoxy resin , or a mixture of these; EBPS-200 (trade name: manufactured by Sakamoto Chemical Co., Ltd.), EPX-30 (trade name: ADEKA (share) manufacturing), EXA-1514 (trade name: DIC (share) manufacturing Bisphenol A type epoxy resin such as bisphenol S type epoxy resin; jER157S (trade name: manufactured by Mitsubishi Chemical Corporation); YL-931 (trade name: manufactured by Mitsubishi Chemical Corporation), Aralditel63 ( Trade name: tetraphenyl-panylethane type epoxy resin such as manufactured by Huntsman Japan (share);

Araldite PT810 (trade name: manufactured by Huntsman Japan (share)), TEPIC (trade name: manufactured by 曰Chem Chemical Industry Co., Ltd.), etc.; HP-4032, EXA-4750, EXA-4700 (trade name: Epoxy resin containing naphthyl group such as DIC (manufactured by DIC); epoxy resin having a dicyclopentadiene skeleton such as HP-7200, HP-7200H, HP-7200HH (trade name: manufactured by DIC); TECHMORE VG3101L (trade name: manufactured by Mitsui Chemicals Co., Ltd.), YL-933 (trade name: manufactured by Mitsubishi Chemical Corporation), 28 201250387 42580pif EPPN-501, EPPN-502 (trade name: manufactured by Dow Chemical Japan) A trisphenol decane type epoxy resin. Among them, jER828, jER834, jER1001, jER1004 (trade name: manufactured by Mitsubishi Chemical Corporation), TECHMOREVG3101L (trade name: manufactured by Mitsui Chemicals Co., Ltd.), EPPN-501, EPPN-502 (trade name: In the case of Dow Chemical Japan (manufactured by the company), it is preferable to obtain a cured film having high adhesion to various substrates. The epoxy resin which can be used in the ink of the present invention may be one type of compound or a mixture of two or more types of compounds. When the content of the epoxy resin in the total amount of ink (in terms of solid content) of the present invention is 〇5 wt% to 20 wt%, the adhesion of the obtained cured film enamel to various substrates is improved, Therefore, the content of the epoxy resin is preferably from 0.5 wt% to 10 wt%, more preferably from 〇5 wt〇/wt%.丨 〗 〗 肺 肺 肺 肺 肺 肺 肺 肺 肺 肺 肺 肺 肺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺 顺The imine compound described below can be obtained by reacting, for example, hydrazine. , phthalic anhydride into [Chemical 4]

29 201250387 In the formula (6), R1Q and R12 each independently represent hydrogen or a methyl group, and R11 is a divalent group represented by the following formula (7). — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — An alkyl group, a divalent group having an aromatic ring which may have a substituent, or a cycloalkyl group which may have a substituent. Examples of the substituent include a carboxyl group, a hydroxyl group, an alkyl group having 1 to 5 carbon atoms, and an alkoxy group having 1 to 5 carbon atoms. From the viewpoint of obtaining a cured film having high heat resistance and the like, it is preferred that each of R13 and R14 is independently a divalent group selected from the group (8) below. [Chemical 6]

In the formula (7), X is a divalent group selected from the group (9) below. 0 201250387 42580pif [Chemical 7]

?H3

One H===^—

The cis-butyl diimide compound in the present month may be a mixture of two or more compounds. S resin having a phenolic hydroxyl group, a hydroxyl group-based resin, preferably obtained by a condensation reaction of a phenolic compound with _, which is obtained by a condensation reaction of phenolic compound with _ (), ethylene benzene age children, its silky compound _ (four) silk hydride) and so on. As the aromatic compound having a heterogeneous radical, exemplified by: benzopan, o-tolan, m-methyl, p-methyl-o-ethylphenol, m-ethylphenylhydrazine, p-ethylbenzoic acid, ortho-phenylbenzene Hope, butyl correction, pair of base benzene cool, 2,3_ one hope (also _〇1), 2,4-dimethyl, 2,5_two 曱, 2,6_ two test, 3,4-individual, 3,5-dioxin, 2,3,5-tridecylphenol, 3,4,5-tridecylphenol, p-phenylphenol, resorcinol (res〇 Rdn〇1), hydroquinone, hydroquinone monoterpene ether, pyrogallol, bisphenol A, bisphenol F, diphenol containing terpene skeleton, gallic acid , gallic acid ester, α-naphthol, and β-naphthol. 31 201250387 k The aldehydes are exemplified by furfural, trioxane, sugar, benzoic acid, nitrobenzaldehyde, and acetaldehyde. The compound copolymerizable with vinylbenzene may, for example, be (meth)acrylic acid or a derivative thereof, styrene or a derivative thereof, cis-butylenedicarboxylic anhydride, vinyl acetate or acrylonitrile. Specific examples of the phenolic hydroxyl group-containing resin include Resitop PSM-6200 (trade name, manufactured by Qunjin Chemical Industry Co., Ltd.), sh〇n〇i BRG-555 (trade name: Showa Denko (share) manufacturing) ), he is MS-2P, Maruka Lyncur CST70, Maruka Lyncur PHM-C (trade name, manufactured by Maruzen Petrochemical Co., Ltd.). The phenolic hydroxyl group-containing resin which can be used in the ink of the present invention may be one type of compound or a mixture of two or more types of compounds. &lt; 1.7-6. Dimeric murine amine resin&gt; The melamine resin is not particularly limited as long as it is a resin produced by polycondensation of melamine and furfural, and examples thereof include methylol melamine and enrichment. A condensate such as methyl melamine, benzoguanamine, hydroxydecyl benzoguanamine, or an etherified hydrazine-based hydrazine. Among these, a condensate of etherified hydroxymethyl melamine is preferred from the viewpoint of good chemical resistance of the obtained cured film or the like. Specific examples of the melamine resin include Nikalac MW-30, MW-30HM, MW-390, MW-100LM, and MX-750LM (trade name, manufactured by Sanwa Chemical Co., Ltd.). The melamine resin which can be used in the ink of the present invention may be one compound or a mixture of two or more compounds. 32 201250387 42580pif &lt; 1.7-7. Epoxy hardener&gt; The chemical resistance of the cured film obtained by the invention tLt, etc., is an acid curry agent or a polyether as an epoxy hardener. , may be mentioned: maleic anhydride, tetrahydro- ortho-indolyl = o-stupid, formic acid, methyl hexaphthalic anhydride, ethylene cis; into I, phthalic anhydride, trimellitic anhydride, And a benzene G坼-maleic anhydride copolymer or the like. Not four ethyl = polyamine? The hardener may, for example, be diethylenetriamine, triethylenetetramine, a compound, an iso-diamine, an amine, a polyamidamine (polyamine resin), an imidized group, a monoamine, M-xylenediamine, m-phenylenediamine, U-bis (amine n-ethyl chloroform, diandiaminodiphenyl ruthenium, etc. soil 3,3-ethyl-2-phenyl decane' and diamine The base diphenyl compound. The epoxy hardener in the ink of the present invention may be a compound of a compound or a mixture of two or more compounds. &lt;1.7-8. Decane coupling agent> Inventive (4) Hardened material on the substrate Adhesiveness, in this case, can also contain Wei coupling agent. As a specific coupling agent, oxypropyloxypropyltrimethoxy, 3-methylpropyloxy, 3~glycidol Oxyfluoride-trimethoxy 2, glycerol-oxypropyl triethoxy sulphur, 3-aminopropyl fluorenyl, and 3 propyl propyl oxime. Among these, _ oxygen Base two-group trimethoxy zephyr, 3-methyl propyl oxypropyl 33 201250387u ^ methoxy Wei, and 3 - glycidoxypropyl tridecyloxy has a reactive group and can be combined with other It is preferred that the components are copolymerized. The dream-burning coupler which can be used in the ink of the present invention may be a mixture of two or more compounds. <1.8> Viscosity of ink> The ink of the present invention is made of E-type The point of hunger measured by the viscometer is preferably 200 mPas or less, and if the viscosity is 1 mPa.s to 200 mPa.s, it is more preferable to use ink having good ejection characteristics of the ink jet apparatus. The viscosity of the ink is better. It is 2 mPa.s~1〇〇mpa.s, especially preferably 3 mPa. mPa s. _ : When using the ink with a viscosity of more than 3 〇mpa.s at 25C, the inkjet dish t is lowered when it is ejected. The viscosity of the ink can be used to achieve a more stable ^ ° § When the temperature of the money is increased, the viscosity of the inkjet ink is preferably 1 paper 5 when the temperature is C~12 (TC). ～3〇ιώρΙΓ is better as 2 sib 25, 1 and particularly preferably 3 mPa. S~20 &lt; 1.9. Method for preparing ink&gt; The present water can be made into a raw material by a known method, especially The hair-ink is preferably prepared by mixing the component (a) and optionally the component (8) to (7) into a component, and then using, for example, a fluororesin. The film is passed through the device. The solution of the jin^ is prepared by removing the gas. The sputum ink is excellent in the ejection property. The agricultural 侑丨34 201250387 4Z58Upif 乂i.10. The ink preservation> The ink is in the 2 (rc~ It is stored under 25t, and the investigation in the storage is small. The cross-linking (increased) is small, and the storage stability becomes good. [2. Coating of ink by inkjet method] ^Invented ink can be coated by using a known method As the ϋ ', for example, a mechanical method in which a mechanical energy is applied to the ink to cause the ink to be ejected = === a so-called piezoelectric method), and a coating method in which the ink is applied to the ink (so-called thermal induction method) may be mentioned. j. By using the inkjet method, it is possible to form the ink head such as a uniform image on a large substrate by using an inkjet method. For example, it may be exemplified by a metal and/or metal oxide. The inkjet head. Specific as metal and/or metal oxide::: List: slaves, "-, genus, and gold coatings. H. Preferred water for use with the ink of the present invention (d): ί 2: A device may be exemplified by supplying energy corresponding to a coating signal to ink in an ink-face ii inkjet head containing ink, applying energy to generate ink droplets, and performing surface corresponding to the above-mentioned 唬The coating device is not limited to the inkjet head and the ink accommodating portion, and is separated from the ink accommodating portion, and the ink accommodating portion cannot be separated from the ink accommodating portion. In the case of the latter, it is also possible to grasp the fixed portion of the device with respect to the ink jet head, or to be able to be separated from the carrier, and in the latter case, for example, the member may be supplied via the ink cartridge 35 201250387, for example Further, the coating (spraying) temperature is preferably 1 (rc to 120 &lt; t, and the viscosity of the ink of the present invention at the shooting temperature is preferably 1 mpa.s. mPa.s [3_Use of ink] The ink of the present invention is excellent in photocurability, and can be formed to exhibit high permeability and high A cured film having excellent heat resistance and high strength and excellent adhesion to a substrate, etc., can be preferably used for a microlens array used in a backlight device or the like, or a transparent insulating film used in a touch panel or the like. Production. Brother [4. Cured film, etc.] The cured film and microlens of the present invention are obtained by curing the above-described ink of the present invention, and it is preferred to apply the above-described ink of the present invention to a substrate by an inkjet method. After the surface, the ink is irradiated with light such as ultraviolet rays or visible rays to cure the coating film or the dots. The cured film and the microlens of the present invention are obtained by curing the ink of the present invention. A cured film (having a film thickness of 2.0 μm to 3.0 μm) having a high light transmittance and a highly reliable cured film and a microlens having a small change in light transmittance even under a severe environment such as a high temperature. The light transmittance at a wavelength of 4 〇〇 nm after heat treatment at 70 ° C for 100 hours is 98 〇 / 0 or more, preferably 98.5% or more. Such a cured film can be obtained by using an inkjet method. Will contain the above compound (A) and light polymerization After the ink of the initiator (B) is applied onto the surface of the substrate to form a coating film, the coating film is irradiated with light such as ultraviolet rays or visible light to cure the coating film, and in particular, it can be obtained by using an inkjet method. The ink containing the above-mentioned compound (A) and phase 36 201250387 42580pif for the total amount of ink (in terms of solid content) 100 wt% of photopolymerization initiator (B) of 1 wt% to 2% by weight is applied to the surface of the substrate. After the coating film is formed, the coating film is irradiated with light such as ultraviolet rays or visible light to cure the coating film. When ultraviolet rays, visible rays, or the like are irradiated, the amount of exposure to be irradiated is appropriately adjusted as long as it corresponds to the composition of the ink of the present invention. However, it is a value measured by an integrated photometer (CUSTOM UV meter UVC-254), preferably about 100 mJ/cm 2 to 3,000 mJ/cm 2 , more preferably about 200 mJ/cm 2 to 2,000 mJ/cm 2 ' It is better to be around. Further, the wavelength of the ultraviolet ray or the visible ray to be irradiated is preferably from 200 nm to 500 nm, more preferably from 200 nm to 400 nm, and even more preferably from 200 nm to 300 nm. Further, the ultraviolet rays described in the following examples The (uv) exposure amount is a value measured by an integrated photometer (CUSTOMUV meter UVC-254). When irradiating light, an exposure machine may be used, and as an exposure machine, a high-pressure mercury lamp, a low-pressure mercury lamp, an electrodeless lamp, a metal halide lamp, a halogen lamp, or the like may be mounted, and it may be in the range of 200 nm to 500 nm. The apparatus for irradiating ultraviolet rays or visible light is not particularly limited, but it is more preferably an exposure machine equipped with a low-pressure mercury lamp, an electrodeless lamp or a metal halide lamp which can emit strong ultraviolet rays in a range of 200 nm to 300 nm. Further, if necessary, the cured film of the present invention which is cured by irradiation with light may be further heated and calcined, for example, at 8 〇〇 c to 25 (for heating and calcination for 10 minutes to 60 minutes under rc, In this way, a more durable cured film or the like can be obtained. The "substrate" to which the ink of the present invention is applied is not particularly limited as long as it can be applied to the ink 37 201250387 s-zjoupif, and its shape is not limited. The substrate is not limited to the shape of the flat plate. For example, it includes a poly(p-lyethyiene terephthalate, PET) and a polybutylene terephthalate. (polyester-based resin substrate such as p〇lybutylene terephthalate, PBT); polyolefin tree ruthenium substrate containing polyethylene, polypropylene, etc., including polyvinyl chloride, fluororesin, acrylic resin, polyamine, polycarbonate Organic polymer film such as ester and polyimine; substrate containing cellophane; metal foil; laminated film of polyimide and metal foil, using cellophane, parchment, and poly with filling effect A paper obtained by filling with ethylene, a clay binder, polyvinyl alcohol, starch, or carboxymethyl cellulose (CMC); and a glass substrate. Among them, an acrylic resin substrate is preferably used. As the substrate, a substrate containing an additive such as an antioxidant, an anti-deterioration agent, a filler, an ultraviolet absorber, an antistatic agent, and/or an anti-electromagnetic wave agent may be used as long as it does not adversely affect the effects of the present invention. As the substrate, a substrate which is subjected to surface treatment such as liquid-repellent treatment, corona treatment, plasma treatment, or blast treatment on at least a part of the surface of the substrate as needed may be provided with an easy-adhesion layer or color on the surface. When the ink of the present invention is used as the ink for forming a microlens, it is preferable to use a substrate such as a liquid-repellent acrylic resin substrate. It is not particularly limited, and is usually 1〇μηη~4ιηιη 38 201250387 42580pif or so I is suitably adjusted according to the purpose of use, but preferably 5 Pm~2 melon (7) more preferably 100 μm to 1 mm. The use of the cured film of the present invention is not particularly limited, and the cured film of the present invention is excellent in adhesion to a substrate and exhibits high transparency. It is used for the manufacture of a microlens made of a napkin or the like, or a transparent insulating film used in a touch panel or the like. Further, when a microlens is formed from the present invention, the lens of the microlens is used. (4) There is no limit on the silk, and the material is 1 () μηι~ι〇〇μπι, more preferably 20 m~60 μιη, especially preferably 3〇μιη~5〇μιη. The height of the lens (dot) is not particularly limited, usually Preferably, it is 0.5 μπι 2 〇μιη 'more preferably 2 μιη~15哗, and particularly preferably 4 is called ~1 〇. Further, the ratio of the height of the lens to the diameter of the lens is not particularly limited. However, it is preferable to use a wire material having a different effect, and it is preferably 0.18 or more, and more preferably 〇 2 or more. When the insulating film is formed from the ink of the present invention, the film thickness of the insulating film is not particularly limited, but is preferably from m to 30 μm, more preferably from 0.2 μm to 20 μm, and even more preferably 〇3. Ιιη~1〇μιη. The light transmittance of the cured film of the present invention is preferably 98% or more, more preferably % or more, in the case of a film thickness of 2 〇 〜 3 〇 〇 。 。 。 。 。 。 。 。 。 。 。 The light transmittance is preferably 98% or more, preferably more than or equal to the above. The hair (4) Wei material can be secret (4) secluded or transparent, soil, therefore: in order to effectively use light from the backlight, etc., obtain a guilty Optical member 'The cured film of the present invention must have a light transmittance of 98% or more when the film thickness is (2 〇哗 to 3.0 μηη). 39 201250387 [5. Optical parts] The optical parts of this &amp;= have the above-mentioned microlenses High-performance, high-reliability optical parts - Light transmission [6. Liquid crystal display] The display device has the above-mentioned optical components. Therefore, it is a special-purpose, high-visibility and high-definition display. [Example] Two = example The present invention is described in the following, but the present invention does not describe the preparation of the inkjet ink and the fabrication of the substrate with the cured film. First, the preparation of the inkjet ink and the substrate with the cured film formed using the ink are carried out. [Example 1] . Tetrahydroanthracene acrylate as compound (4) Namely, Light Acrylate THF-A (trade name: manufactured by Kyoeisha Chemical Co., Ltd., hereinafter abbreviated as "THF-A"), and p-radyl-cyclohexyl-phenyl ketone as photopolymerization initiator (8), iRGACURE 184 ( Product name: manufactured by BASF, hereinafter abbreviated as "Irl84". The absorbance in the wavelength region of 3 〇〇 nm or more obtained by UV absorption spectroscopy of a photopolymerization initiator concentration of 〇〇〇1 wt% is 0.1. The following) and the pentaerythritol tri(indenyl) acrylate as the compound (c), that is, Aronix M-305 (trade name: manufactured by Toagosei Co., Ltd., hereinafter abbreviated as "M3〇5"), are mixed, and after obtaining a solution, A membrane filter made of polytetrafluoroethylene (PTFE) having a pore size of 1 μm was subjected to filtration at 201250387 425 «Upif to obtain a filtrate (inkjet ink 1). (A) THF-A : 50.00 g (B) M84 : 7.00 g (C) M305: 50.00 g The viscosity of the inkjet ink 1 under 25^ was measured using an E-type viscometer (τ v_ 2 2 (trade name) 'same in the following) manufactured by Toki Sangyo Co., Ltd. 'The result is 18.2 mPa.s. (4) A 4crn square glass substrate (thickness: 〇7 mm) prepared by UV ashing using a UV ozone cleaner (manufactured by Sen LIGHTS Co., Ltd.) to improve the lyophilicity of the surface. Injected into an ink cartridge, and then mounted on an inkjet device (DMP-; 2831 (trade name) manufactured by FUJIFILM Dimatix Lnc.), using an inkjet head for 10 pi (picoliter) at a discharge voltage (pressure Under a discharge condition of 20 V, an ink jet head temperature of 34 ° C, a driving frequency of 5 kHz, and a coating number of times, the printing resolution was set to 512 dpi to apply a square of 3 cm. pattern. A low-pressure mercury lamp having an exposure illuminance of 15 mW/cm at a wavelength of 254 nm is used to adjust the UV exposure amount at a wavelength of 254 rnn to 300 mJ/cm 2 or 500 mJ/cm 2 to irradiate the glass substrate with light. This obtained a substrate la (UV exposure amount; 300 mJ/cm 2 ) and a substrate lb (UV exposure amount; 500 mJ/cm 2 ) of a cured film having a square pattern. Next, a part of the cured film of the obtained lb substrate was cut off with a cutter, and then the film thickness of the step portion was measured using a stylus type film thickness meter P-15 (trade name) manufactured by KLA-Tencor Japan Co., Ltd. As a result, the average value of the measurement of the 2012503 87r position of the three parts was 2.5 μηη. [Example 2] As a photopolymerization initiator (Β), phenylacetic acid was used (DAROCUR MBF (trade name; manufactured by BASF, hereinafter abbreviated as "MBF". The concentration of the photopolymerization initiator was 〇〇〇 The same as the composition 1 except that Ill 84 was used instead of Irl 84 in the UV absorption spectrum of the 1 wt% acetonitrile solution, and the composition ratio was as follows. Preparation of inkjet ink 2. (A) THF-A: 50.00 g (B) MBF: 7.00 g (C) M305 : 50.00 g The viscosity of the inkjet ink 2 at 25 ° C was measured using an E-type rotational viscometer. The result of the measurement was 15.8 mPa·s. The inkjet ink 2 was used, and the head temperature was set to 32. (:, except that a square pattern with a piece of 3 cm was obtained in the same manner as in Example 1. The substrate 2a and the substrate 2b of the cured film were formed. Then, the film thickness was measured in the same manner as in Example 1 using the substrate 2b, and as a result, the film thickness was 2.3 μm [Example 3] as a photopolymerization initiator (Β), which was used as Hydroxyphenylacetic acid 2_[2_ oxo-2-phenyl-ethoxycarbonyl-ethoxy]-ethyl ester, with hydroxybenzene IRGAajRE754 (product name: manufactured by BASF, hereinafter abbreviated as "11754"), a UV-absorption of 0.001 wt% of an acetonitrile solution having a photopolymerization initiator concentration of 0.001 wt%. The absorbance in the wavelength region of 3〇〇42 201250387 42580pif nm or more obtained by spectrometry was 〇丨 below) and was set to the following composition. In addition to m, the inkjet ink 3 was prepared in the same manner as the example. (A) THF-A : 50.00 g (B) Ir754: 7.00 g (C) M305 : 50.00 g Using an E-type viscometer, the inkjet ink under the pit was measured and found to be 17.2 mPa, s. Using the inkjet ink 3, and setting the temperature of the inkjet head to the outside, 'the substrate 3a and the substrate 3b having a cured film of 3 c = slave pattern were obtained in the same manner as in Example 1. Subsequently, the substrate 3b was used. The film thickness was 2.4 μm. The film thickness was [Example 4]. The quotient is set to the following composition ratio, in addition to Prepare inkjet ink 4. Λ U the same way (A) V#155: 50.00 g (Β)ΐΓ754: 7.00 g (c) M305 . 50.00 g Using an E-type viscometer, black black leather at 25°c 4 The result was 17.0 mPa.s. "The soil and viscosity were carried out using inkjet ink 4, and the nozzle head temperature was set to 3 generations. Except that 43 201250387 ^ZDOUpif, the hardening with a square pattern of 3 cm was obtained in the same manner as in Example 1. The substrate 4a and the substrate 4b of the film were formed. Then, the film thickness was measured in the same manner as in Example 1 using the substrate 4b, and the film thickness was 2.4 μm. [Example 5] As a compound (Α), it was used as dicyclopentene acrylate. An inkjet ink 5 was prepared in the same manner as in Example 3 except that FA-513AS (trade name: manufactured by Toray Chemical Industries Co., Ltd.) was used instead of THF-A. A) FA-513AS: 58.30 g (B) Ir754: 7.00 g (C) M305: 41.70 g The viscosity of the inkjet ink 5 at 25 ° C was measured using an E-type viscometer, and it was 18.5 mPa·s. Using the inkjet ink 5, the substrate 5a and the substrate 5b having a cured film having a square pattern of 3 cm in one piece were obtained in the same manner as in Example 1. Then, using the substrate 5b, the film thickness measurement was performed in the same manner as in Example 1. As a result, the film thickness was 2.5 μηη 实例 [Example 6] as Compound (Α), Aronix Μ-327 (trade name: East Asia Synthetic (Stock), which is modified as ε_caprolactone to be modified with tris(propylene methoxyethyl) isocyanurate, hereinafter abbreviated as "M" -327") instead of THF-A, as compound (C), 4HBA (trade name: manufactured by Nippon Kasei Co., Ltd.) as 4-hydroxybutyl acrylate was used instead of M3〇5, and it was set as the next 44 201250387 An inkjet ink 6 was prepared in the same manner as in Example 2 except that the composition ratio was 42580pif. (A) M-327 : 33.30 g (B) MBF : 7.00 g (C) 4HBA : 66.70 g Using an E-type viscometer, the viscosity of the inkjet ink 6 at 2 5 °C is &gt; the result is 32.0 mPa.s. The inkjet ink 6 was used, and the temperature of the inkjet head was set to 50 ° C, except that the substrate 6a and the substrate 6b having a cured pattern of a square pattern of 3 cm were obtained in the same manner as in Example 1. Then, using the substrate 6b, the thickness measurement was carried out in the same manner as in Example 1. The film thickness was 2.8 μm. [Example 7] An inkjet ink was prepared in the same manner as in Example 6 except that M-327 (33.30 g) and FA-513AS (33.30 g) were used as the compound (Α), and the following composition ratio was used. 7. 33.30 g 33.30 g 7.00 g 33.40 g (A) M-327 : (A) FA-513AS : (B ) MBF : (C) 4HBA: Measure the viscosity of the inkjet ink 7 under the suppression of the outer disk a and spray The substrate head 7a and the substrate 7b having a cured film of a square 45 201250387^ pattern of 3 cm were obtained by the same method as in Example 1, except that the temperature of the ink head was set to 52 C, and then the substrate 7b was used. The film thickness measurement was carried out in the same manner as in Example 1, and as a result, the film thickness was 2.8 μηη. [Example 8] As the compound (C)', KAYARAD DPCA-20 (trade name: manufactured by Nippon Chemical Co., Ltd.), which is a pentaerythritol hexa(meth) acrylate modified with caprolactone, was used instead of Μ305, and was set as An inkjet ink 8 was prepared in the same manner as in Example 3 except for the following composition ratio. (A) THF-A : 60.00 g (B ) Ir754 : 7.00 g (C ) DPCA-20 : 40.00 g The viscosity of the inkjet ink 8 at 25 ° C was measured using an E-type viscometer, and it was 15.8 mPa. .s. The inkjet ink 8 was used, and the temperature of the inkjet head was set to 32 ° C, except that the substrate 8a and the substrate 8b having a cured pattern of a square pattern of 3 cm were obtained in the same manner as in Example 1. Then, the film thickness was measured in the same manner as in Example 1 using the substrate 8b, and as a result, the film thickness was 2.4 μm. [Comparative Example 1] As a photopolymerization initiator, it was used as 2-mercapto-indolyl [4-(indolylthio)benzene

IRGACURE907 (product name: manufactured by BASF, hereinafter abbreviated as "Ir907"). UV absorption of acetonitrile solution having a photopolymerization initiator concentration of 〇〇〇1 wt% The absorbance in the wavelength region of 3 〇〇 nm or more obtained by spectrometry is more than 0.1) instead of Irl 84 as the photopolymerization initiator 46 201250387 4ZD8 Upif (B), and is set to the following composition ratio, and other examples Inkjet ink 9 was prepared in the same manner. ^, (A) THF-A: 50.00 g (B) Ir907 : 7.00 g (C) M305 : 50.00 g The viscosity of the inkjet ink 9 at 25 〇c was measured using an E-type viscometer, and the result was 18.1 mPa. s. The inkjet ink 9 was used for ordering, and the nozzle head temperature was set to 34 〇c, and otherwise, the substrate 9a and the substrate of the cured film having a square pattern of 3 em were obtained by the method of Example 1. 9b. Then, using the substrate 9b, the film thickness was measured in the same manner as in Example ,, and as a result, the film thickness was 2.5 μm. [Comparative Example 2] A phenoxy acrylate (v#192 (trade name)' manufactured by Osaka Organic Chemical Industry Co., Ltd., hereinafter abbreviated as "v#192") was used instead of the compound (A). An inkjet ink was prepared in the same manner as in Example 3 except that THF_A was set to the following composition ratio. (B) Ir754 : 7.00 g (C) M305 : 50.00 g (C) W192: 50.00 g The viscosity of the inkjet ink at 25 Å was measured using an E-type viscometer and found to be 22.2 mPa·s. Using the inkjet ink 10' and setting the inkjet head temperature to 4 (rc, otherwise, by the method of Example 1), a square 201250387 τ^, ^υ\-/ριΙ pattern with a piece of 3 em was obtained. The substrate 10a and the substrate 10b of the cured film were subjected to the same method, and then the substrate 10b was used to measure the thickness of Example 1 and the film thickness was 2.6 μm. [Comparative Example 3] Using 4 Å as the compound (C) An inkjet ink U was prepared in the same manner as in the THF-A as a compound, and was set to the following composition ratio. " $ 3 (B) Ir754 : 7.00 g (C) M305 : 50.00 g ( C) 4HBA : 50.00 g The viscosity of the inkjet ink u at 25 ° C was measured using an E-type viscometer. The result was 21.6 mPa·s. Using inkjet ink 11, the head temperature was set to 39 〇 c, except that the substrate 11a and the substrate 11b having a cured film having a square pattern of 3 cm were obtained in the same manner as in Example 1. Then, the film was formed in the same manner as in Example 1 using the substrate lib ' Thickness measurement showed a film thickness of 2.2 μη. [Comparative Example 4] Using as a compound (C) Bisphenol f-type hydrazine-modified bismuth diacrylate (Μ208 (trade name), manufactured by Toagosei Co., Ltd., hereinafter abbreviated as "Μ-208") is used instead of Μ 327 as a compound (Α), and is set as follows. Composition ratio 'In addition, inkjet ink 12 was prepared in the same manner as in Example 6. 7.00 g (B) MBF : 48 201250387 42580pif (C) M-208 : 50.00 g (C) 4HBA : 50.00 g Using E-type viscosity The viscosity of the inkjet ink 12 at 25 ° C was measured and the result was 25.4 mPa·s. The inkjet ink 12 was used, and the head temperature was set to 45, except for the same as in Example 1. The method of obtaining a substrate 12a and a substrate 12b having a cured film having a square pattern of 3 cm was obtained. The film thickness was measured in the same manner as in Example 1 using the substrate 11b'. The film thickness was 2.6 μm 〇 &lt; Evaluation of Inkjet Ink and Cured Film> Then, the photocuring property of the inkjet ink obtained above, the transmittance of the cured film, and the transmittance and strength after the heat resistance test were evaluated. Further, by 150 μm Interval will inkjet ink (丨~12)! Drop 1 drop The shape, the dot diameter, and the adhesion to the substrate of the microlens formed by UV-curing on the surface-repellent substrate (substrate 13) were observed. The test methods were as follows, and the evaluation results were as follows. (Table 2) (Photocuring test) The surface of the substrate (la to 12a and lb to 12b) of the cured film having a square pattern of 3 cm square obtained in each of the examples and the comparative examples was touched with a finger. And the surface state of the cured film was observed under a microscope. The evaluation criteria are as follows. ◎ • On either of the substrate a and the substrate b, the finger contact marks do not remain on the surface of the cured film at all. 49 201250387 〇 : On the substrate b, the finger contact marks did not remain on the surface of the cured film at all, but on the substrate a, the finger contact trace remained slightly on the surface of the cured film. △ • On either of the substrate a and the substrate b, the finger contact marks slightly remained on the surface of the cured film. x : On either of the substrate a and the substrate b, the finger contact marks are completely left on the surface of the cured film. (Measurement of Transmittance of Cured Film) Using a substrate (lb to 12b) of a cured film having a square pattern of 3 cm square obtained in each of the examples and the comparative examples, a transmittance measuring device V-670 (trade name: 曰) was used. This spectroscopic (manufactured by the company) is used to measure the transmittance at a wavelength of 400 nm. Further, a glass substrate of 4 squares (thickness: 0.7 mm) which did not form a cured film was used as a reference. (Transmittance after heat resistance test) Using the substrate (1b to 12b) of the cured film having a square pattern of 3 cm square obtained in each of the examples and the comparative examples, the transmittance was measured at 70 ° C by the transmittance measuring device V-670. The transmittance at a wavelength of 4 〇〇 nm after standing for 100 hours. Further, a 4 cm square glass substrate (thickness: 〇 7 mm) in which a cured film was not formed after standing at 70 Torr for 1 hour was used as a reference. (Measurement of strength) Using the substrates (lb to 12b) of the cured film having a square pattern of 3 cm square obtained in each of the examples and the comparative examples, the hardness of the erroneous pen was measured in accordance with JIS K 5400 to investigate the strength. 50 201250387 42580pif (Observation of Microlens Shape) Inject inkjet ink 1 into an ink cartridge, and then mount it on an inkjet device (DMP-2831 (trade name) manufactured by FUJIFILM Dimatix Inc.) for 10 pi. The ink jet head set the print resolution to 170 dpi under the discharge conditions of a discharge voltage (piezoelectric voltage) of 20 V, an ink jet head temperature of 34 ° C, a drive frequency of 5 kHz, and a coating number of times. And ejecting the inkjet ink 1' at a distance of 150 μη from the surface of the liquid-repellent substrate (substrate π), and then using a low-pressure mercury lamp with an exposure illuminance of 15 mW/cm at a wavelength of 254 nm to make the wavelength 254 The substrate was irradiated with light by adjusting the amount of UV exposure at nm to 500 mJ/cm 2 , thereby obtaining a substrate lc having a dot pattern. Similarly, the inkjet ink 2 to the inkjet ink 12 are used to obtain the substrate 2C to the substrate 12c with dot patterns, respectively. Then, as a result of observing the shape of the microlens formed on the substrate (lc to 12c) by an optical microscope, it is assumed that the shape is a beautiful circle and the size is uniform, and the shape is deformed or the size is deviated. In the case of x °, the point diameter (D), height (H), and dot shape (H/D) of the microlens were also measured. In addition, the measurement of the spot diameter is carried out using an optical microscope Βχ51 (trade name) manufactured by OLYMPUS Co., Ltd., and the stylus type film thickness meter P_15 manufactured by KLA-Tencor Japan Co., Ltd. Name) to carry out the measurement. The value obtained by dividing the obtained point height by the dot diameter is set as a dot shape (H/D). The method of manufacturing the surface liquid-repellent substrate (substrate 13) will be described below. The surface treatment agent 1 is injected into an ink cartridge, and then mounted on an inkjet device (DMP-2831 (trade name) manufactured by FUJIFILM Dimatix Inc.) 51. Inkjet head for 201250387 pl' at the mouth voltage (piezoelectric voltage) In the case of a discharge condition of a 6 V head temperature of 3 (rc, a drive frequency of 5, and a coating number of ^, the printing resolution is set to be coated on a propylene = substrate (thickness: 2.0 mm). It is a square pattern of 3 (10). A low-pressure mercury lamp with an exposure illuminance of 154 nm at a wavelength of 254 nm is used to make the exposure amount of Uv at a wavelength of 254 nm into a miscellaneous manner to irradiate the coated substrate. In this way, a surface liquid-repellent substrate (substrate 13, a substrate with a button-cured film) is obtained. Further, a part of the liquid-repellent cured film on the surface is cut by a cutter, and then KLA-Tencor Japan (share) is used. In the stylus type film thickness meter P-15 (trade name), the film thickness of the step portion was measured, and the average value of the measurement at the three portions was 0.96 μm. Next, the method for preparing the surface treatment agent 1 is shown below. Composition of propylene glycol monomethyl ether (Tokyo In the case of the production of the company, the following is abbreviated as "PGME"), M402 (product name: East Asia Synthetic (Stock) manufacturing 'hereinafter abbreviated as "M402"), and the amino acid amide represented by the following formula (10) U6LPA (product name: manufactured by Shin-Nakamura Chemical Industry Co., Ltd., hereinafter referred to as "υ60> Α"), ΒΥΚ UV 3500 (trade name: BYK-Chemie Japan (share), the following is abbreviated as "BYK3500" After mixing with Ir754, a membrane filter (pore size: 0.2 μm) made of Ultra High Molecular Weight Polyethylene 'UPE was used for filtration to obtain a filtrate (surface treatment agent 1). 52 201250387 42580pif [1] (1. For example, ?(1〇) PGME : 7.000 g M402 : 2.560 g U6LPA : 2.560 g BYK3500 : 0.330 g Ir754 : 0.770 g Using E-type viscometer (Manufactured by Toki Sangyo Co., Ltd.) Τν_22 (trade name), the same as the following) 'Measurement of the viscosity of the surface treatment agent 1 at 25 ° C' was 5.1 mPa·s. (The contact of the lens with the surface treatment substrate Test) Adhesive tape ("N〇6〇〇" tape (trade name) manufactured by Sumitomo 3M (share)) was attached to the obtained substrate (lc~12c) having a dot pattern, and thereafter, when peeled off The state of the dot pattern remaining on the substrate was observed, whereby the adhesion of the microlens to the surface liquid-repellent substrate was evaluated. Furthermore, the evaluation criteria are as follows. 〇: The dot pattern is completely unchanged. X:—Some or all of the dots are peeled off [Table 1]

~fW2~ Example 4 Example 5 Example 6 Example 7 Photocurability 〇 ◎ ◎ ◎ ◎ - Transmittance (%) 99.0 99.1 99.4 98.9 98.7 98.6 Transmittance after heat resistance test (%) 98.7 98.7 99.4 99.2 98.5 98.7 98.5 99.3 Strength 3H j 3H 3H 3H 3H 3H

201250387t WV/^/aI

[Table 2] ----1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Photocurability Ο ◎ ◎ ____ Transmittance (%) 95.0 98^2___ 99.2 98.8 __ Transmittance after heat resistance test (%) 89.7 95.5 96 94.3 Strength 3H 3H - 3H Η [Table 3] Example 6 Example 7 Example soil _ Example 1 Example 2 Example 3 Example 4 Example 5 Substrate substrate lc Substrate 2c Substrate 3c Substrate 4c rS&gt; Substrate 6c Substrate 7c Base n Micro Lens shape 〇〇0 〇〇0 0 〇 point diameter (μπ〇33 33 33 34 32 32 32 32 point height (μπ〇7.6 7.5 7.5 7.2 8 8,1 7.9 7,7 . H/D 0.23 0.23 0.23 0.21 0.25 0.25 0.25 0.24 Adhesiveness 〇0 〇〇〇0 0 〇 [Table 4] Comparison ------1 Comparative Example 2 Comparative Example 3 Comparative Example 4 _ Substrate Substrate 9c Substrate 10c Substrate lie Substrate 12c Microlens Shape ______ 〇0直径 Point diameter (μπι) 33 __ 34 33 33 point height (μηι) 7.5 ---------1 __ 72 7.6 7.7 A H/D 0.23 __〇21 0.23 0.23 Adhesive Ο L-〇0 0 As is clear from the results of Table 1, although the finger contact trace remained slightly on the surface of the cured film in the substrate 1a of Example 1, In all the substrates of the substrate 1b and the examples 2 to 8 of Example 1, the finger contact marks did not remain on the surface of the cured film at all, and the photocurability of the ink of the present invention was good at 201250387 42580pif. The transmittance at a wavelength of 400 nm was performed. As a result of the measurement, the cured film obtained from the ink 1 to the inkjet ink 8 showed a high yield of 98% or more, and the light transmittance was good, but the cured film obtained from the smart ink 9 showed an over-rate of 98% or less. Further, as a result of the enthalpy of the wavelength of 4 后 after standing at 70 ° C for 1 hour, the cured film obtained from the inkjet ink ～ inkjet ink showed a high value of 98% or more. The transmittance is good, but the transmittance of the cured film obtained from the inkjet ink 9 to the inkjet ink 12 is not lower than 98%. ” The microlens shape on the substrate lc to the substrate 8c is confirmed. As a result, in any substrate towel, the microlens impurities are beautifully shaped and of the same size. In addition, as a result of the measurement of the dot diameter ride, the diameter of the microlens obtained from the ink of the present invention is 32 μm to 34 μm. Small, h/d is 〇2 or moreTherefore, the ink of the present invention can be preferably used in the manufacture of light-extracting light guide sheet material parts. In addition, as a result of confirming the adhesion of the microlens to the surface liquid-repellent substrate, the microlens obtained from the ink of the present invention was not peeled off from the substrate, and good adhesion was exhibited. [Industrial Applicability] The hair of the ink of the present invention (4) is hard to be recorded, and the cured film of the lining and the micro-breast exhibit light transmittance, high heat resistance, and high strength. Therefore, the hydrophobic water of the present invention can be preferably used for the manufacture of a microlens array used in a backlight device or the like, a transparent insulating film used in a touch panel or the like. 55 201250387 I V V ^ ^ In addition, since a microlens having good adhesion can be formed on the surface liquid-repellent substrate, it is particularly preferably used for manufacturing a liquid crystal display or a light guide plate of a display panel. [Simple description of the diagram] None. [Main component symbol description] None 0 56

Claims (1)

201250387 42580pif VII. Patent Application Range: k A photocurable inkjet ink comprising a (fluorenyl) acrylate (A) represented by the following formula (1) and a photopolymerization initiator (B), the above photopolymerization The initiator (B) is a photopolymerization initiator having an absorbance of 0.1 or less in a wavelength region of 300 nm or more obtained by UV absorption spectrum measurement of a photopolymerization initiator concentration of 〇.1 wt% in an acetonitrile solution. The light transmittance at a wavelength of 4 〇〇 nm of the cured film obtained by heat treatment of the above-mentioned ink (having a film thickness of 2 〇μηι to 3.0 μm) at 70 ° C was 98% or more at 70 ° C. [Chemical 1] (in the formula (1), n of R1 are each independently hydrogen or an alkyl group having a carbon number of i to 6, and R1 has an alicyclic structure or a heterocyclic structure (however, it does not contain the following formula (2-1) or The organic group of the structure represented by the formula (2-2), an integer of _i to 10) [Chemical 2] 57 1 . The photocurable ink according to claim 1, wherein the photocurable ink according to claim 1 is 201250387, wherein the total amount of the photocurable inkjet ink is (five) in terms of body composition) l^wt%, and 1 wt% to 20 The photo-curable inkjet ink according to the above aspect of the invention, wherein the photopolymerization initiator (8) is selected from the group consisting of a phenylacetate-based initiator The phenylacetic acid g is an initiator and at least one compound in the group formed by the phenyl (tetra) or the initiator. 4. The photocurable inkjet ink according to the above aspect of the invention, wherein the photopolymerization initiator (8) is selected from the group consisting of a phenylacetate-based initiator and a phenylglyoxylate. a compound in the group consisting of the initiators. 5. The photocurable inkjet ink according to claim 2, wherein the photopolymerization initiator (B) is selected from the group consisting of hydroxyphenylacetic acid 2_[2_sideoxy-2-phenyl-ethyl At least one compound of the group consisting of methoxy-ethoxy]-ethyl ester, phenylacetic acid 2_[2-trans-ethoxyethyl]-ethyl ester, and methyl phenylglyoxylate . 6. The photocurable inkjet ink according to claim 1, wherein in the above formula (1), R 2 is selected from the group consisting of cyclohexane, cyclopentane, bicyclo [2.2.1] heptane, Tricyclodecane, tetrahydrofuran, lactone of 5 or more, dicyclopentane, dicyclopentene, adamantane, piperidine, quinone ring, cyclic condensate and 1,3,5-triazine_ At least one organic group in the group consisting of 2,4,6-trione. 7. The photocurable inkjet ink according to claim 1, wherein the (mercapto) acrylate (A) is selected from the group consisting of (meth)acrylic acid cyclohexane 58 201250387 42580pif cyclohexyl dimethanol oxime, two %&lt; 癸 二 dimethanol di(methyl) acrylate, ester, ri methyl) acrylic acid vinegar, γ_ butane vinegar (methyl) acrylic acid cyanide epoxy (methyl) acetophenone acetophenone, isotrimer (propylene oxy ethoxylate (: guar vinegar, and ε_ caprolactone modified three compounds. At least 1 in the group consisting of citric acid vinegar 8. For example, the scope of the patent application includes the above-mentioned compound (c) which has a more two-passive double bond other than methyl decenoic acid vinegar (4). The photocurable inkjet ink according to the invention, wherein the compound (C) is selected from the group consisting of n-butyl methacrylate, t-butyl (meth)acrylate, lauryl (meth) acrylate, and fluorenyl Acrylic acid by ethyl ethane, (meth) acrylic acid _2 _ _ propyl propyl ketone, (methyl) propyl acetoacetate hydroxy butyl vinegar, (meth) methoxy acetate, (methyl ) C Ethoxyethyl ethoxide, methoxybutyl (meth) acrylate, bismuth ethylene glycol bis(indenyl) acrylate, diethylene glycol bis(indenyl) acrylate, polyethylene glycol bis(indenyl) Glyceryl gallate, dipropanol di(mercapto)acrylic acid vinegar, 1,4-butanediol di(methyl) acrylate, 1,6-hexanediol bis(indenyl) acrylate, Neopentyl glycol bis(indenyl) acrylate, trishydroxypropyl propane tri(meth) acrylate, pentaerythritol tris(decyl) acrylate, dipentaerythritol hexa(meth) acrylate, and caprolactone modification At least one compound of the group consisting of dipentaerythritol hexa(indenyl) acrylate. 10. The photocurable inkjet ink 59 201250387 water according to claim 1, which further comprises a surfactant ( The photocurable inkjet ink according to claim 10, wherein the surfactant (D) is selected from the group consisting of an anthrone-based surfactant, an acrylic surfactant, and a fluorine-based interface. At least one compound in the group consisting of the agents. 12. As described in claim 1 A curable inkjet ink, which further comprises an ultraviolet absorber (E). The photocurable inkjet black water according to claim 1, which further comprises an antioxidant (F).臈, which is obtained by hardening the photocurable inkjet ink according to any one of claims 1 to 13. 15. A microlens which is made according to the scope of the patent application The photocurable inkjet ink according to any one of the above 13 is obtained by hardening. The microlens described. 16. An optical component comprising the patent application scope 16 items 201250387 4Z then pif IV. Designated representative map: (1) The representative representative of the case is: None. (2) A brief description of the component symbols of this representative figure: None. 5. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: R2(1) 201250387 42580ρϊΠ Amendment date: 1〇1月30日日第101120387号 Chinese manual without scribe correction The patent specification of the invention is not to be filled in J _ &lt;2006.011 -Π006. oil (This manual format, order and coarse Body type, please do not change anything, ※ mark ※ application case number: . Op ※ application period: Classification: hn person -, invention name: (Chinese / English) ^ Light-curable inkjet ink, cured film, microlens, Optical parts and liquid crystal display 1 § PHOTO-CURABLE INKJET INK, CURED FILM, MICROLENS, OPTICAL COMPONENT AND LIQUID CRYSTAL DISPLAY 2. Abstract: The present invention provides a photocurable inkjet ink which has sufficient photohardenability. A cured film and a microlens which are excellent in adhesion to a substrate and excellent in light transmittance and further excellent in heat resistance, and a photocurable inkjet ink comprising (meth) propylene represented by the following formula (1) Acid cool (phantom, and light ◎ polymerization initiator (B) 'The above photopolymerization initiator (8) is a photopolymerization initiator as follows, that is, the concentration of the photopolymerization initiator is The absorbance in the wavelength region of 3 (10) Å or more obtained by UV absorption spectroscopy of the 猜1 feeling is 0.1 or less, and the cured film obtained from the ink is thief (the film thickness is 2·0 μm 〜 3_0μιη) The light transmittance at a wavelength of 400 nm after heat treatment for 1 hour is 98% or more. 201250387 42580pifl Corrected flood season: August 3, 2011 is the 101120387 Chinese manual without a slash correction BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photohardenable (four) ink ink which can be preferably used in the manufacture of a liquid crystal lithography machine. More specifically, the present invention relates to a backlight A photocurable inkjet ink such as a transparent insulating film used in a microlens array or the like used in a source device. L-first-order technology has been used in liquid crystal display materials for backlighting since the beginning. (4) The light guide of the microlens _, and the use of a transparent insulating film in the second control panel, etc., especially for the guide or the touch surface (4), and when used in the liquid crystal display element, meeting 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 [Patent Document] [Patent Document 1] Japanese Patent Laid-Open No. Hei 265662 [Patent Document 2] Japanese Patent Laid-Open No. 3,929,043 [ Patent Document 3] Japanese Patent Laid-Open Publication No. 7_321G34 No. 201250387 42580pifl Correction Period: August 30, 2011 is the Chinese version of the No. 2, No. 387 No-line correction # [Patent Document 4] Japanese Patent Special Open ~ continent 2 Japanese Laid-Open Patent Publication No. JP-A No. Hei. No. Hei. No. 2,248, 352. The cured film formed of the three compositions of the present invention has a high light transmittance, but is heat-resistant, and has a low temperature, for example, at 7 〇〇. The light transmittance at a wavelength of 4 〇 G nm of the film after the heat treatment at 1 〇〇 + becomes a problem. Therefore, the cured film cannot be used as a film for forming a microlens array or a transparent insulating film for a touch panel. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a photocurable inkjet ink having sufficient photocurability to form adhesion to a substrate and A cured film and a microlens which are excellent in light transmittance and are excellent in heat retention. The inventors of the present invention have found that the photocurable inkjet ink is excellent in light curability, and that it is excellent in light transmittance and further excellent in heat resistance, and is obtained by the present invention. The inkjet ink contains a specific (meth) acrylate and a photopolymerization initiator, and is subjected to an hourly heat treatment at 7 (TC for a hard tilt (the film thickness is 2. Gpm to 3.0 μm) obtained from the ink). The transmittance of the film at a wavelength of 400 nm becomes 98 Å/〇 or more. That is, the present invention includes the following items: Π A photocurable inkjet ink comprising the following formula (丨) (A) The methacrylate (A) and the photopolymerization initiator (B), the photopolymerization initiator (B) is a photopolymerization initiator as follows, which is a photopolymerization initiator concentration of 0.001 wt% (% by weight) The ultraviolet ray (Ultraviolet, UV) absorption spectrometry of the acetonitrile solution is determined by the 3 〇 〇 5 201250387 42580 pifl Revision date: August 30, 2011 is the 101120387 Chinese specification without scribe line correction in the wavelength region above nm Absorbance is below 0.1 The light transmittance of the film obtained by heat-treating the cured film (having a film thickness of 2. 〇μΐυ to 3.0 μηι) obtained from the ink at 70 C for 10 hrs at a temperature of 98 Å was 98°/. or more. 1] R2(1) (In the formula (1), η R1 are each independently a hydrogen or a carbon group, and R has an alicyclic structure or a heterocyclic structure (however, it does not contain the formula (2-1) or the formula (2-1) 2-2) The organic group of the structure shown, ^ is an integer of 10). [2] The photocurable inkjet ink according to [1], wherein the total amount of the photocurable inkjet ink (solid content conversion) is relative to the photocurable inkjet ink. 100 wt%, the above photopolymerization initiator (b) is contained in an amount of from 1 wt% to 20 wt%. [3] The photocurable inkjet ink according to [1] or [2] wherein the photopolymerization initiator (B) is selected from the group consisting of oxyphenyi acetic acid 201250387 42580pifl Revision date: 丨01 August 30th, the Chinese manual No. 10112〇387 is not underlined to correct the acidester) initiator, phenyl glyoxylate 糸 starter and hydroxyphenyl ketone At least one compound in the group consisting of the initiator. [4] The photocurable inkjet ink according to any one of [1] to [3] wherein the photopolymerization initiator (B) is selected from the group consisting of hydroxyphenyl acetate initiators, and At least j compounds of the group consisting of phenylglyoxylate-based initiators. [5] The photocurable inkjet ink according to any one of [4], wherein the photopolymerization initiator (B) is selected from the group consisting of hydroxyphenylacetic acid_2_[2_sideoxy group -2-phenyl-acetoxy-ethoxy]-acetic acid (〇Xy_phenyl_acetic acid 2-[2-〇x〇-2-phenyl-acetoxy-ethoxy]-ethyl ester), phenylacetate-2- [2-hydroxy-ethoxy]-ethyl ester (0Xy_phenyi_acetic acid 2-[2-hydroxy-ethoxy]-ethyl ester), and phenyl glyoxylic acid methyl ester At least one compound. [6] The photocurable inkjet ink according to any one of [1] to [5] wherein, in the above formula (1), R2 is selected from the group consisting of cyclohexane, cyclopentene, and bicyclo [2.2] .1] heptane, tricyclodecane, tetrahydrofuran, lactone of 5 or more, dicyclopentane, dicyclopentene, adamantane, piperidine, quinone ring, ring-shaped condensate At least one organic group in the group consisting of an aldehyde and 1,3,5-triazine-2,4,6-trione. [7] The photocurable inkjet ink according to any one of [1] to [6] wherein the (meth)acrylic acid vinegar (A) is selected from the group consisting of (meth)acrylic acid cyclohexanoic acid , (▼ base) tetrahydrofurfuryl acrylate, isodecyl (meth) acrylate, (methyl) 201250387 42580pifl No. 1011 view No. 7 Chinese manual no underline correction This revision date: August 3, 2011 Dicyclopentenyl (meth)acrylate, tricyclohexanthene diol di(mercapto) acrylate, cyclohexyl dimethanol di(meth) acrylate, γ-butyrolactone (Meth) acrylate, iso-cyanuric acid ethylene oxide modified di(meth) acrylate, iso-cyanuric acid epoxidized modified tris(methyl) acrylate, and ε- Caprolactone is modified to at least one compound of the group consisting of tris(propylene methoxyethyl) isomeric cyanurate. [8] The photocurable inkjet ink according to any one of [1] to [7] further comprising a compound having a radical polymerizable double bond other than the above (meth) acrylate (Α) ( C). [9] The photocurable inkjet ink according to [8], wherein the compound (C) is selected from the group consisting of n-butyl (meth)acrylate, tert-butyl acrylate (meth)acrylate, and (meth)acrylic acid. Lauryl ester, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, _4-hydroxybutyl (meth)acrylate, methoxyethyl (meth)acrylate Ethyl ethoxyacetate (meth) acrylate, methoxy butyl acetonate (meth) acrylate, ethylene glycol di(meth) acrylate vinegar, diethylene glycol di (indoline) propylene vinegar , polyethylene glycol di(meth)acrylic acid vinegar, dipropylene glycol di(meth)acrylic acid vinegar, 1,4-butanediol di(meth)acrylic acid vinegar, hexanediol bis(indenyl) acrylate , neopentyl glycol di(meth)acrylic acid vinegar, trimethylsilane propane di(meth)acrylate, pentaerythritol tris(meth)acrylic acid vinegar, diquaternary alcohol hexa(methyl)propionic acid Vinegar, and at least one compound in the group consisting of dipentaerythritol hexa-(methacrylate). [10] Photohardenable spray as described in [1] to [9] Ink ink, its more [11] The photocurable inkjet ink according to [1], wherein the above interface 201250387 42580pifl is the 101120387 Chinese manual without a slash correction. The revision date: August of the following year The third active agent (D) is at least one compound selected from the group consisting of a free-free oxime-based surfactant, an acrylic-based surfactant, and a fluorine-based surfactant. [12] [1] The photocurable inkjet ink according to any one of [1], which further comprises the ultraviolet absorbing agent (E). [13] The photocurable spray according to any one of [1] to [12] The ink inks further include an antioxidant (F). [14] A cured film obtained by hardening the photocurable inkjet ink according to any one of [1] to [13]. A holographic lens obtained by hardening the photocurable inkjet ink according to any one of [1] to [I]. Π6] an optical component comprising the same as [15] A microlens. A liquid crystal display comprising the optical component according to [16]. [Effects of the Invention] ^ Photohardening of the photocurable inkjet ink of the invention It is excellent in properties, and can form a cured film and a microlens which are excellent in adhesion to a substrate and have excellent adhesion to a substrate. Further, the photocurable inkjet ink according to the present invention can be dialed on the surface. The light-curable inkjet ink of the present invention (hereinafter also referred to as "the one of the present invention") is light as follows. a curable inkjet ink comprising (meth)acrylic acid (A) and a silking agent (B) which are not the above formula (1), and the photopolymerization initiator (8) is a photopolymerization initiator as follows. That is, 201250387 42580pifl Revision date: August 30, 2011 is No. 101120387 Chinese specification No slash correction The wavelength region above 300 nm obtained by uv absorption spectroscopy of acetonitrile solution with a photopolymerization initiator concentration of 0.001 wt% The absorbance in the range is 〇1 or less, and the cured film obtained from the ink (having a film thickness of 2 〇μηη to 3.0 Pm) at 70 C is subjected to a wavelength of 4 〇〇 nm of the film after heat treatment for 100 hours. Light transmittance shows 98% or more 6 hair Since the ink contains the specific (meth) acrylate (A) and the photopolymerization initiator (B), the photocurability is good, and the light transmittance, heat resistance, strength, and adhesion to the substrate are excellent. The cured film and the microlens, in particular, can form a cured film and a microlens having little change in light transmittance even under a severe environment such as high temperature. In the following description, the "cured film and microlens" are also referred to as "cured film or the like". Further, the ink of the present invention may optionally include a compound having a radical polymerizable double bond other than the above (mercapto) acrylate (A), a surfactant (D), and an ultraviolet absorber (E). ), an antioxidant (F), a polymerization inhibitor, a resin containing a condensed radical, a maleimide compound, a melamine resin, a sulphur coupling agent, an epoxy resin, an epoxy hardener, and Solvents, etc. The ink of the present invention is preferably colorless in view of light transmittance, and may further contain a colored compound insofar as it does not impair the effects of the invention. In this case, it is preferred that the color of the obtained cured film or the like is not yellowish, and for example, a blue compound can be used. In addition, for example, when the state of the cured film or the like is inspected, in order to easily distinguish it from the substrate, 201250387 42580pifl is the K) U fine 7th towel text _ difficult _ station correction earned _ August 30th, also It may contain a colorant. &lt;1.1. (M) acrylate (A) represented by the formula (1) The ink of the present invention contains (indenyl) acrylic acid (4) represented by the above formula (1) (hereinafter also referred to as " The compound (A) ")" is an ink excellent in photocurability, and can form a cured film or the like which exhibits high light transmittance and high heat. Further, in the present specification, "(indenyl) acrylate" is used to mean either or both of a propylene phthalate and a methacrylate. In the above formula (1), each of the eleven R1 is independently hydrogen or an alkyl group having a carbon number of 1 to 6, and particularly, if n of R1 are each independently H or CH3, an ink excellent in photocurability is obtained. Further, a cured film or the like which exhibits high light transmittance is obtained, which is preferable. Further, when r1 is nitrogen, an ink having better photocurability can be obtained, and curing with higher light transmittance can be obtained. In the above formula (1), specific examples of the organic group having an alicyclic structure or a heterocyclic structure of R2 include those selected from the group consisting of cyclohexene, cyclodextrin, bicyclo [2.2.1], and tricyclic Wei. , tetrahydroanthracene, more than 5 members of _, - cyclopenta, dicyclopentene, gold listen, money, brewed imine ring, ring-shaped shrinking and 1,3,5_2'#_2,4 At least one organic group of the group towel composed of 6-Maki. Wherein 'especially if the formula (1) has a selected from the group consisting of cyclohexanol, 5 coats [2.2.1], gypsum, bicyclo-wei, tetrahydro- 11 furan, bi-ring sister, and 1,3,5·two-three At least one organic group in the group can be obtained with an ink excellent in photocurability and can be obtained not only for the substrate 11 201250387 42580pifl Revision date: August 30, 2011 is the 101120387 Chinese The specification is preferred because it does not have a scribe line to correct a cured film having excellent compatibility and light transmittance and excellent heat resistance. Further, R2 in the above formula (1) does not have a structure represented by the above formula or formula (2-2). From the viewpoints of heat resistance, high strength, high adhesion to a substrate, and the like, it is preferred that the hardened crucible or the like formed of the ink of the present invention contains a resin having a meniscus structure or a hetero structure. On the other hand, the (fluorenyl) acrylate containing the structure represented by the above formula (2-1) or (2-2) has high activity, so the above formula (2-1) or formula (2-2) ) the ring represented is susceptible to The effect of moisture or ambient temperature, especially under high temperature and humidity conditions, is easy to open. Therefore, the cured film formed of the following ink tends to have poor long-term reliability, and the ink contains only (fluorenyl) acrylate having a structure represented by the above formula (2_υ or formula (2-2)). The compound (A) of the present invention 〇° Specific examples of the compound (Α) include (cycloalkyl)cyclohexyl acrylate, cyclopentyl (meth) acrylate, isodecyl (mercapto) acrylate, (A) Base) Dicyclopentenyl acrylate, dicyclopentenyloxyethyl (meth)acrylate, dicyclopentenyl (meth)acrylate, 4-butylcyclohexyl (meth)acrylate, (A) Base) propyl benzoate-2-methyl-2-gold vinegar, (meth) propyl benzoic acid _2_ethyl _2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7_织金眺§, (methacrylic acid-3-carbyl-1_diamond ester, methyl propyl oxy-lowering (A &amp; propylene H (mercapto) acrylic acid tetrahydro vinegar , [intra-tetrahydro-acetic acid _, tricyclic oxime, dinonyl alcohol bis(indenyl) propylene], methanol early (meth) acrylate vinegar, cyclohexyl dimethanol di(methyl) propyl benzoate S methyl) Acrylic pentamethyl tour Imino ring (methyl) 12 201250387 42580pifl Revision date: August 30, 2011 is the 101120387 Chinese manual no face correction I!: Dimeric acid epoxy Ethylene bromide modified di(methyl) propyl Weiwei E-heat modified tris(meth)acrylic acid vinegar, ε_hexine vinegar cyanurate, cyclic tri-methyl propyl acetoxime = medium 'especially if (meth)acrylic acid ring is used § 、 、 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( Cyclohexyl dimethanol di(meth)acrylic acid vinegar, iso-cyanuric acid ethidium bromide modified di(methyl)propanoid-indole, iso-cyanuric acid ethylene oxide modified tris(fluorenyl) When an acrylate or ε-caprolactone is modified with tris(propylene oxyethyl) isomeric cyanurate or γ-butyrolactone (methyl) propyl acrylate, an ink excellent in photocurability can be obtained. Further, it is preferable to obtain a cured film which is excellent in light transmittance and excellent in heat resistance, etc. Further, if tetrahydrofurfuryl (meth)acrylate or cyclohexyl (meth)acrylate is used, Mercapto)dicyclopentenyl acrylate, tricyclodecane dimethanol di(meth) acrylate or ε-caprolactone modified tris(propylene oxyethyl) isocyano cyanide® as a compound Α)' is preferably a cured film having a better heat resistance, etc. The compound (Α) may be one compound selected from the group consisting of the above compounds, or two or more of these compounds. When two or more kinds of compounds (Α) are used, it is preferred from the viewpoints of light curability of the ink, light transmittance of the obtained cured film, heat resistance, adhesion to a substrate, and the like. A mixture of a monofunctional compound (Α) and a polyfunctional compound (Α) is used. 13 201250387 42580pifl Revision date: August 30, 2011 is the 101120387 Chinese manual. There is no slash correction. The 5 "single-functional compound" refers to one molecule (曱-based). The "polyfunctional compound" which is a compound of a polymerizable group such as a propyl group is a compound having two or more polymerizable groups such as a (meth) acryl fluorenyl group in one molecule. As the compound (A), a compound produced by a known method can be used, and a commercially available product can also be used. Examples of commercially available products include cyclohexyl methacrylate (trade name: Light Ester CH; manufactured by Kyoeisha Chemical Co., Ltd.), and acrylic acid hexose vinegar (trade name: V#155, Osaka Organic Chemical Industry ( Manufactured), tetrahydrofurfuryl acrylate (trade name: LightEsterTHF; manufactured by Kyoeisha Chemical Co., Ltd.), tetrahydrofurfuryl acrylate (trade name · Light Acrylate THF-A; Kyoeisha Chemical Co., Ltd.) Manufactured), thioglycolic acid citric acid (trade name: SR-423D; manufactured by Sartomer Co., USA), dicyclopentenyl acrylate (trade name: FA-511AS; manufactured by Hitachi Chemical Co., Ltd.), dicyclopentyl acrylate Ethyloxyethyl ester (trade name: FA-512AS; manufactured by Yuli Chemical Industry Co., Ltd.), dicyclopentenyl acrylate (trade name: FA-513AS; manufactured by Hitachi Chemical Co., Ltd.), tricyclodecane Didecyl diacetic acid vinegar (trade name · IRR214-K; manufactured by DaicelCytec (share)), iso-cyanuric acid ethylene oxide modified triacrylate (trade name: M-315; East Asia Synthetic (share )) and ε-caprolactone Modified tris(propenyloxyethyl)isocyanate (trade name: Μ-327; manufactured by East Asia Synthetic Co., Ltd.). In the ink of the present invention, the content of the above compound (Α) is 10 wt% to 80 with respect to the total amount of the ink (in terms of solid content). The content of the above compound (Α) is 10 wt% to 80 201250387 42580 pifl. Date: 1%, August 30th, Wt%, it is preferable to obtain not only an ink having excellent photocurability but also a cured film having excellent light transmittance and excellent balance between adhesion and strength of the substrate. The content of the compound (A) is more preferably 15% by weight to 7% by weight, more preferably 2% by weight to 25% by weight, particularly preferably 25% by weight to 5% by weight. &lt;1.2. Photopolymerization initiator (B) &gt; The ink of the invention contains a photopolymerization initiator (B). The photopolymerization initiator (B) is a photopolymerization contact agent, that is, a UV absorption spectrum measurement of an acetonitrile solution having a concentration of 0.001 wt% of a combination initiator (U-made by Hitachi Shou Technology Co., Ltd.) The amount of absorbance in the wavelength region is (U or less, preferably 〇〇5 or less. The photopolymerization initiator (B) is not particularly limited, but is preferably used. The compound which generates a radical by irradiation with ultraviolet rays or visible rays is preferably a hydroxyphenyl acetate initiator, a phenylglyoxylate initiator or a hydroxyphenylketone initiator, wherein More preferably, it is a hydroxyphenyl acetate-based initiator or a phenylglyoxylate-based initiator from the viewpoints of light curability of the ink, light transmittance of the cured film obtained from the ink, and the like. Specific examples of the photopolymerization initiator (B) include 2,2,-methoxy-1,2-diphenylethane ketone and hydroxy-cyclohexyl phenylene , 2'-yl-2'methyl*phenyl-propanone, 1-[4-(2-carbylethoxy)-phenyl]-2-yl-2-methyl-1-propane Small ketone, 2_ via base small {4_[4 ( 2-based 2-2-methyl-propionyl)-benzyl]-phenyl-2-cyanopropanone, hydroxyphenylacetic acid 2_[2- oxo-2-phenylethenyloxy-ethoxylate Ethyl ester, hydroxy-p-hydroxyacetic acid, 2-[2-hydroxy-ethoxy]-ethyl ester, and methyl phenylglyoxylate. Among them, especially if hydroxyphenylacetic acid is used, 2_[2_ side Oxy-2-phenyl-ethyl 15 201250387 42580pifl is the Chinese manual of No. 101120387 without a slash correction. Amendment date: _August 30th 醯oxy-ethoxy]-ethyl ester, hydroxyphenylacetic acid_2_[2 _ hydroxy-ethoxy]-ethyl ester, methyl phenylglyoxylate, and 1-hydroxy-cyclohexyl phenyl ketone, an ink excellent in photocurability can be obtained, and hardening with excellent light transmittance can be obtained. Preferably, if a membrane or the like is used, if hydroxyphenylacetic acid 2-[2-o-oxy-2-phenyl-ethoxycarbonyl-ethoxy]-ethyl ester or hydroxyphenylacetic acid _2-[2 is used. - hydroxy-ethoxy]-ethyl ester and methyl streptoacetate are preferred because an ink having more excellent photocurability is obtained. The photopolymerization initiator (B) may be one compound. It may be a mixture of two or more kinds of compounds. As the above photopolymerization initiator (B) 'can be used by the public A commercially available product can also be used as a commercially available product. For example, 2,2,-dimethoxy-1,2-diphenylethane-1-one (commercial product) Name: IRGACURE651; manufactured by BASF), 1-hydroxy-cyclohexyl-phenyl-ketone (trade name: IRGACURE 184; manufactured by BASF), 2-carbo-2-methyl-1-phenyl-propanone (trade name) : IRGACURE 1173; manufactured by BASF), a mixture of 1-hydroxy-cyclohexyl-phenyl-ketone and diphenyl ketone (trade name: IRGACURE 500; manufactured by BASF), 1-[4-(2-hydroxyethoxy)-benzene 2-hydroxy-2-mercapto-1-propan-1-one (trade name: IRGACURE 2959; manufactured by BASF), 2-hydroxy-M4-[4-(2-hydroxy-2-indolyl-propenyl) )-]-phenyl] 2-phenyl-2-mercaptopropan-1-one (trade name: IRGACURE 127; manufactured by BASF), hydroxyphenylacetic acid-2-[2- oxo-2-phenyl-ethoxime a mixture of benzyl-ethoxy]-ethyl ester and hydroxyphenylacetic acid-2-[2-trans-ethoxy]ethyl ketone (trade name: IRGACURE 754; manufactured by BASF), phenylglyoxylate ( Product name: DAROCURMBF; manufactured by BASF), and 1-hydroxy-cyclohexyl-phenyl 201250387 42580pifl Amendment date: August 31, 2011 is No. 101120387 Chinese specification no slash correction Ben-ketone and bis(2,6-dimethoxybenzophenanthryl K4,4_tridecyl-fluorenyl oxidation A mixture of bis (2,6-dimethoxy ben 2〇yi. 254,4-trimethyl-pentyl phosphine oxide) (trade name: IRGACURm8®; manufactured by BASF). In the ink of the present invention, when the content of the photopolymerization initiator (B) is i _ 20 20% by weight based on the total amount of the ink (in terms of solid content), the photocuring property against ultraviolet rays can be obtained. It is preferable that the content of the photopolymerization initiator (B) is more preferably 2% by weight to 5% by weight, and still more preferably 3% by weight, in particular, if the ink is excellent in water and a cured film having excellent light transmittance is obtained. 10 wt%. &lt;1.3. Compound (C) having a radical polymerizable double bond other than the compound (A) &gt; The compound (C) having a radical polymerizable double bond other than the above compound (A) may not be used in the present invention. The ink is added in a range in which the discharge property (ejection property) and photocurability of the inkjet device and the light transmittance and heat resistance of the cured Q film obtained from the ink are affected. From the viewpoints of light curability of the ink, light transmittance of the obtained cured film, heat resistance, adhesion to a substrate, and the like, it is preferred to use only a monofunctional (fluorenyl) acrylate as the above. In the case of the compound (A), a polyfunctional compound (C) is used, and when only a polyfunctional (meth) acrylate is used as the above compound (A), a monofunctional compound (C;) is used. In other words, the ink of the present invention preferably contains a monofunctional polymerizable compound and a viewpoint of light curability of the ink, light transmittance of the obtained cured film, heat resistance, adhesion to a substrate, and the like. Functional Polymerization 17 201250387 42580pifl No. 101120387 Chinese specification without slash correction This revision date: i〇i year August 3 〇 both. Examples of such an ink include an ink containing a monofunctional compound (a) and a polyfunctional compound (A), an ink containing a monofunctional compound (a) and a polyfunctional compound (C), and a monofunctional compound. (c) and an ink of the polyfunctional compound (A). The above compound (C) is not particularly limited, and particularly, n-butyl (meth) acrylate, tert-butyl (meth) acrylate, lauryl (mercapto) acrylate, (meth) propionate-2- Hydroxyethyl ester, (meth)acrylic acid 2-hydroxypropyl ester, (mercapto)acrylic acid 4-hydroxybutyl ester, (mercapto)acrylic acid methoxyethyl ester, (mercapto)propionic acid ethoxylate Ester, methoxybutyl (meth) acrylate, ethylene glycol di(decyl) acrylate, diethylene glycol bis(indenyl) acrylate, polyethylene glycol bis(indenyl) acrylate Ester, dipropylene glycol di(meth) acrylate, 1,4-butanediol bis(indenyl) acrylate, 1,6-hexanediol bis(indenyl) acrylate, neopentyl glycol di( Mercapto) acrylate, trishydroxypropylpropane tris(meth)acrylate, pentaerythritol tri(methyl) acrylate, and/or dipentaerythritol hexa(meth) acrylate, caprolactone modified When pentaerythritol hexakis(meth) acrylate is used as the above compound (C), an ink excellent in ejectability and photocurability can be obtained and light can be obtained. Balance of heat resistance and sufficiently excellent cured film, it is preferred. Examples of the other compound (C) include (mercapto)methyl acrylate, (mercapto)ethyl acrylate, (meth)acrylic acid isopropyl vinegar, (mercapto)acrylic acid isovalerone, and (methyl). Isobutyl acrylate, amyl (meth) acrylate, n-hexyl (meth) acrylate, heptyl (meth) acrylate, octyl (meth) acrylate, isodecyl acrylate, (fluorenyl) 2-ethylhexyl acrylate, decyl acrylate, decyl acrylate, isodecyl acrylate, (meth) acrylate 201250387 42580pifl No. 10U20387 Amendment of this revision date: August 30, 2011, didecyl acid diester, stearyl (meth) acrylate, (meth) acrylate 2 - benzyl-3-phenoxypropyl ester, ethoxylate Diethylene glycol (meth) acrylate, decyl dipropylene glycol (meth) acrylate, ethyl diglycol (decyl) acrylate, tetraethylene glycol bis(indenyl) acrylate, double Hope F Ethylene Ethylene (EO) modified di(meth) acrylate, bisphenol AE0 modified di(meth) acrylate, glycerol single ( Acrylate, trifluoroethyl (meth)acrylate, glycidyl (meth)acrylate, methyl glycidyl (mercapto)acrylate, 3_mercaptopurine ~3-(methyl)propene oxime Methyl oxetane, 3-methyl-3-(methyl) propylene oxiranoxy oxetane, 3-ethyl-3-(indenyl) propylene fluorenyl fluorenyl Oxetane, 3-ethyl-3-(indenyl)propenyloxyethyloxetane, p-vinylstyylethyloxetane-3-ylmethyl ether, 2_ Phenyl-3-(methyl)propenyloxyindenyloxybutane, 2-trifluoromethyl_3_(indenyl) propylene fluorenyloxy oxetane, (meth)acrylic acid (3_ethyl_3_oxetanyl) 曱g, polymethyl methacrylate macromonomer, N_6 alkenyl decylamine, (fluorenyl) acrylamide, 〇N, N _Dimethyl(meth)acrylamide, N,N-diethyl(fluorenyl) acrylamide, dimethylaminopropyl (decyl) acrylamide, N-isopropyl (fluorenyl) Acrylamide, N-hydroxyethyl (decyl) acrylamide, phenyl butyl succinimide, N-% hexyl succinimide, B Pyridine, trichostyl propylene terephthalate (meth) acrylate, (mercapto) propionate, (mercapto) propionate dimer, crotonic acid, α-chloroacrylic acid, cinnamic acid , maleic acid, fumaric acid, β-carboxyethyl (meth)acrylate, ~carboxypolycaprolactone mono(indenyl) acrylic acid S曰, succinic acid mono [2_(indenyl) propylene Oxyloxyethyl], phthalic acid mono-monoethyl (meth) acrylate, maleic acid mono [2-(indenyl) propyl 19 201250387 42580pifl No. 101120387 Chinese manual Straight line correction date of revision: 1 8 1 August 3 驴 驴 驴 驴 驴 ] 2- 2- 2- 2- 2- 2- 2- 2- 2- 、 、 、 、 、 、 、 、 、 、 、 、 、 、 Phenyl ester, benzyl (meth)acrylate, methylphenoxyethyl (meth)acrylate, 2-phenoxyethyl (meth)acrylate, 2-phenoxyethyl (meth)acrylate Ethylene oxide and/or propylene oxide addition monomer, 2-hydroxy-3-phenoxypropyl acrylate, vinyl benzene, styrene, methyl styrene, gas methyl styrene Polystyrene giant monomer and the like. The above compound (C) may be one type of compound or a mixture of two or more types of compounds. In the ink of the present invention, if the content of the above compound (C) is from 1 wt% to 85 wt% with respect to the total amount of the ink (in terms of solid content) of 100 wt%, it is easy to adjust the ink viscosity, and in addition, light can be obtained. It is preferable to use an ink excellent in curability and a cured film having excellent light transmittance and adhesion to a substrate. &lt;1.4. Surfactant (D) &gt; The ink of the present invention may be used to improve the wettability of the substrate, the film surface uniformity of the cured film obtained from the ink, and the adhesion to the substrate. Contains a surfactant. The surfactant (D)' is preferably an anthrone-based surfactant, an acryl-based surfactant, a fluorine-based surfactant, or the like. Specific examples of the surfactant include BYK-300, BYK-306, BYK-335, BYK-310, BYK-341, BYK-344, and BYK-370 (trade name: manufactured by BYK_Chemie Japan (share)). Ketone surfactants, acrylic acid interface such as BYK-354, BYK-358 and BYK-361 (trade name: BYK-ChemieJapan (manufactured)) 201250387 ^ζ^ουριχΐ Revision period: August 30, 101 For the Chinese manual No. l〇m〇387, the active agent 'DFX-18, Ftergent250, Ftergent 251 (trade name: manufactured by Neos), Megafac F-475, F-477, F-553, A fluorine-based surfactant such as F-554 (trade name: manufactured by DIC). In addition, when the surfactant (D) is a compound having a reactive functional group, the surfactant is less likely to bleed out from a cured film formed by an inkjet method, and a microlens having a small diameter and a small variation in southness can be formed. Therefore, it is better. The reactive functional group ' is preferably a hydroxyl group, a thiol group, an acid needle, a guanamine group, a %•milyl group, an oxetane group, or a oxime. It is more preferably an epoxy group, an oxetan group, and a (fluorenyl) propylene group, which is preferably a (fluorenyl) propylene group. Specific examples of the surfactant having a (fluorenyl) propylene-based base may, for example, be RS_72K (trade name: manufactured by Die), BYK UV 3500, BYK UV 3570 (trade name: BYK-Chemie Japan (share ))), TEGO Rad 2220N, TEGO Rad 2250, TEGO Rad 2300, TEGO Rad 2500 (trade name: manufactured by Evonik Degussa Japan). Further, as the surfactant having an epoxy group, RS-211K (manufactured by DIC Product Name. DIC (Stock)) can be cited. The surfactant (D) which can be used in the ink of the present invention may be one kind of compound or a mixture of two or more kinds of compounds. In the ink of the present invention, if the content of the surfactant (D) is 〇01 wt% to i〇wt% with respect to the total amount of the ink (in terms of solid content) of 100 wt%, the surfactant is not easily sprayed by itself. It is preferable that the cured film formed by the ink method bleeds out to form a microlens having a small variation in diameter and height. &lt;1.5. Ultraviolet Absorber (E) &gt; 21 201250387 42580pifl No. 10112〇387 Chinese Manual No underline correction This correction period: August 3, 101, in order to prevent the obtained cured film, etc. due to backlight The ink of the present invention may also contain an ultraviolet absorber (it). As the ultraviolet absorber (E), 2-(5-mercapto-2-hydroxyphenyl)benzotrienyl-2'(3,5-di-t-butyl-2-hydroxyphenyl) can be cited. Benzotriazole, 2-(3,5-di-tert-butyl-2-hydroxyphenyl)_5-chlorobenzotriazole, 2_(3,5-di-p-pentyl-2-benzene a benzotriazole compound such as benzotriazole, a triazine compound such as 2_(4,6-diphenyl-1,3,5-tris-2-ylhexyl)oxy]-phenol, 2-hydroxyl a diphenyl ketone compound such as 4-n-octyloxydiphenyl ketone or a oxalic acid anilide compound such as 2-ethoxy-2'-ethyl oxalic acid bis-indole.紫外线 The ultraviolet absorber (E) which can be used in the ink of the present invention may be one type of compound or a mixture of two or more types of compounds. In the ink of the present invention, the total amount of the ink (in terms of solid content) is 1% by weight. The content of the ultraviolet absorber (E) is usually 3% by weight or less, and the effect of addition and hardenability are considered. Preferably, 〇〇〇5 wt% 〜2 wt%. &lt;1.6. Antioxidant (f) &gt; In order to prevent oxidation of the obtained cured film or the like, the ink of the present invention may also contain an antioxidant (F). As the antioxidant (F), triethylene glycol_bis_[3_(3_t-butylindolyl hydroxyphenyl)propionic acid vinegar], diol double [3_(3,5二_ Tributyl-4-hydroxyphenyl)propionate], octadecyl_3_(3,5-di-t-butyl butyl phenyl) propionic acid vinegar, 3,5-di-t-butyl An amine compound such as an ice-blocking base squaric acid diacetate or the like, a compound such as n-butylamine, triethylamine or diethylaminomethyl methacrylate. 22 201250387 42580pifl Revision date: August 30, 2011 is the 101120387 Chinese manual, no underline repair ^# Antioxidant (f) which can be used in bright inks can be a compound of two kinds of compounds. mixture. In the "a water" of the calculation, the content of the anti-gasification agent (F) is usually 3 wt% or less with respect to the total amount of the ink (the solid content is changed by wt/〇), and the effect of adding the effect and the coating property are considered. In other words, it is preferably _ Sense~2 wt0/〇. &lt;1.7. Others&gt; Ο In order to enhance various characteristics, the effect of the ink of the present invention is _ _ _ _ _ _ _ _ gt; Μ π/ preparation, resin containing phenolic hydroxyl group, other components such as ene-amp;imine compound, melamine resin, decane coupling agent, epoxy resin, antimony hardener and solvent. 乂&lt; 1 ·7- 1. Polymerization Inhibitor&gt; In order to improve storage stability, the ink of the present invention is also prepared as a specific example of a polymerization inhibitor; P (Phenothiazine) o 〇 嗪, which can be obtained even if stored for a long period of time: Preferably, the ink having a small increase in the occupation of c., the polymer which can be used in the ink of the present invention may also be a mixture of two or more kinds of compounds, which are compounded in the ink of the present invention, if relative to the right Considering its simple _ balance, material · m read (four) ~ a5wt%, into More preferably (10)_~佳为23 201250387 42580pifl is the 101120387 Chinese manual without a slash correction. Amendment date: 1〇1月3日日日&lt;1.7-2. Solvent> When non-destructive inkjet coating The ink of the present invention may contain a solvent in a range of the ejectability and photocurability, and the adhesion to the substrate and the light transmittance of the obtained cured film, etc. The ink is applied to the ink when applied by an inkjet method. In the case where the head is heated, it is preferred to use a solvent-free ink. ❹ As a solvent which can be used in the present invention, the boiling point &amp; 1 〇〇. (: 〜3 〇〇. The cause of 〇 is coated by an inkjet method. In the case where the ink jet head is heated to a high temperature (for example, 7 Torr to 12 Torr), the boiling point is preferably 2 〇〇. The solvent of c. i ^ 乍 is a specific example of the solvent of the 'Focus 1GGC~3()i) C!C, which may be exemplified by: s T, butyl propionate _, milk H Μ acetic acid methyl _, light acetic acid Acetyl acetate only vinegar acetate, f-oxyacetic acid methyl vinegar, methoxyacetic acid ethyl vinegar, A and Ertian ^ butyl vinegar, ethoxy acetic acid, ethoxy acetic acid Vinegar, 3_light and do ^ propionic acid B, 3, methoxypropionic acid methyl vinegar, 3 · methoxy hydrazine rain 2 3 _ ethoxy propionate A, 3 _ ethoxy propyl Ethyl acetate, 2-methyl-2S曰, ethyl 5-hydroxypropionate, 2'-propyl propyl propionate, 2-methoxypropionic acid oxypropionic acid B26, 2-methoxypropionic acid (IV) , 2_ethoxy 2, 2-4, ethyl 2-ethoxypropionate, 2-oxy-2-methylpropionic acid, vinegar, and 1&quot;&quot;methyl propionic acid 'Methoxy-2-mercaptopropionic acid ethyl ester, 2-ethyl methyl propionate ethyl ester, internal _ _ _, pyruvate vinegar, propyl propylene ketone, acetamidine acetate kexi, 7 Acetylacetate, 2-oxooxybutyrate, decyl citrate, ethylene glycol, diethylene glycol, triethylenedipropanol, monopropanol, tripropylene glycol, 1,4_ Butanediol, ethylene glycol 24 201250387 42580pifl is the 101120387 Chinese manual without a slash correction η _, corrected __ August 3rd. Diisopropyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoterpene, acetic acid S, propylene glycol monoethyl ether acetate, propylene glycol monopropionate hydrazine propylene glycol monoethyl ether acetate, dipropylene glycol single Butyl ether acetate, ethyl butyl ether acetate, cyclohexanone, cyclopentanone, diethylene glycol monoterpene ether, _ ^ monol monodecyl ether acetate, diethylene glycol monoethyl ether, -7 —醢留—一〇一奸早 diethyl ether, diethylene glycol monobutyl ether, diethylene glycol monobutyl ether acetate, two = ο dioxime ether, diethylene glycol diethyl ether, two Ethylene glycol methyl ethyl ether, methyl xylene, large bacteria squama, γ-butyrolactone, N,N-dimethylacetamide, methyl-2-pyrrolidone and dimercaptoimidazole Show I. A solvent which can be used in the ink of the present invention may be one type of compound and a mixture of two or more types of compounds. ', can> In the ink of the present invention, if the content of the solvent is 100% by weight relative to the total amount of the ink (solid conversion), the content of the solvent is 1 wt% to 6 〇 wt%, and then the ink is applied by the ink method. The ejection orifice of the inkjet head becomes less clogging, so it is better. If you consider the balance with other characteristics, the solvent content is better ~ 50 wt%, and even better! Wt%~4〇 wt%. ' ° &lt;1.7-3. Epoxy Resin&gt; 4: The strength of the obtained cured film or the like 'The ink of the present invention is also "=?) Only 1 is a dimer having at least one of the following formulas. There is no special limit for the resin of the structure shown in the table. 25 Revision period: August 30, 2012, 201250387, 42580 pifl, No. 101120387 Chinese manual, no slash correction, [Chemical 3] Δ ~~〇 (2 -1) (2-2) Specific examples of the epoxy resin include novolak type (benzene aldehyde varnish type and nonylphenol novolak type), bisphenol A type, double F type, and diphenol decane type. , hydrogenated bisphenol A type, hydrogenated bisphenol F type, tetraphenylolethane type, bixylenol type, biphenol type epoxy resin, alicyclic and heterocyclic ring The oxy-resin' and the epoxy resin having a dicyclopentadiene skeleton or a naphthalene skeleton are preferably a novolak type, a bisphenol A type or a bisphenol F type or a three-browed brothel type epoxy resin. A resin produced by a known method can be used, and a commercially available product can also be used. As an example of a commercially available product, it can be listed. :jER828, jER834, jERlOOl, jER1004 (trade name: Mitsubishi Chemical (share) manufacturing), Epiclon840, Epiclon850, Epiclon050, Epiclon2055 (trade name: DIC (share) manufacturing), Epotohto YD-011, Epotohto YD-013, Epotohto YD -127, Epotohto YD-128 (trade name: manufactured by Niigata Iron Chemical Co., Ltd.), DER317, DER331, DER661, DER664 (trade name: manufactured by Dow Chemical Japan), Araldite 6071, Araldite 6084, Araldite GY250, Araldite GY260 (trade name: manufactured by Huntsman Japan (share)), 26 201250387 Η·Λ3όυρΐΐ1 is the 101120387 Chinese manual without a slash correction. Amendment date: August 1, 1st, Sumi-Epoxy ESA-011 ' Sumi-Epoxy ESA-014 'Sumi-Epoxy ELA-115, Sumi-Epoxy ELA-128 (trade name: Sumitomo Chemical Industries, Inc.), AER330, AER331, AER661, AER·664 (trade name: Asahi) Manufacture of bisphenol A type epoxy resin such as Kasei E-Materials (manufacturing); jER152, jER154 (trade name: manufactured by Mitsubishi Chemical Corporation), DER431, DER43 8 (trade name: manufactured by Dow Chemical Japan (share)), Epiclon N-730, Epiclon N-770, Epiclon N-865 o (trade name: DIC (manufactured by DIC), Epotohto YDCN-7 (U, Epotohto YDCN- 704 (trade name: manufactured by Xinyi Iron Chemical Co., Ltd.), Araldite ECN1235, Araldite ECN1273, Araldite ECN1299 (trade name: manufactured by Huntsman Japan (share)), XPY307, EPPN-201, EOCN-1025, EOCN-1020, EOCN -104S, RE-306 (trade name: manufactured by Sakamoto Chemical Co., Ltd.), Sumi-epoxy ESCN-195X, Sumi-epoxy ESCN-220 (trade name: Sumitomo Chemical Industries Co., Ltd.), AERECN-235 , AERECN-299 (trade name: manufactured by Asahi O Kasei E-Materials (share)), etc.; Epiclon 830 (trade name: DIC (manufactured by DIC)) jER807 (trade name: Mitsubishi Chemical (share) Manufactured, Epotohto YDF-170 (trade name: manufactured by Nippon Steel Chemical Co., Ltd.), YDF-175, YDF-2001, YDF-2004, Araldite XPY306 (trade name: manufactured by Huntsman Japan (share)) Epoxy resin; Epotohto ST-2004 Epotohto ST-2007, Epotohto ST-3000 (trade name: manufactured by Nippon Steel Chemical Co., Ltd.), etc. Hydrogenated bisphenol 27 201250387 42580pifl No. 101120387 Chinese manual No underline correction This revision period: 1〇1年八月30-day A-type epoxy resin; Celloxide 2021P (trade name: manufactured by Daicel Chemical Industry Co., Ltd.), alicyclic epoxy resin such as Araldite CY175, Araldite CY179 (trade name: manufactured by Huntsman Japan); YL-6056, YX_4000, YL-6121 (trade name: manufactured by Mitsubishi Chemical Co., Ltd.), etc., such as bisphenol type or biphenol type epoxy resin, or a mixture of these; EBPS-200 (trade name: 曰本化药(股份) Manufactured, ΕΡΧ-30 (trade name: ADEKA (manufactured)), ΕΧΑ-1514 (trade name: DIC (manufactured)) bisphenol S-type epoxy resin; jER157S (trade name: Mitsubishi Chemical (stock) manufacturing ) bisphenol A novolac type epoxy resin; YL-931 (trade name: manufactured by Mitsubishi Chemical Corporation), Aralditel 63 (trade name: manufactured by Huntsman Japan (share)), etc. ; Araldite PT810 (trade name: manufactured by Huntsman Japan (share)), TEPIC (trade name: manufactured by Gifu Chemical Industry Co., Ltd.), heterocyclic epoxy resin; HP-4032, EXA-4750, EXA-4700 (product Name: epoxy resin containing naphthyl group such as DIC (manufactured by DIC); epoxy resin having a dicyclopentadiene skeleton such as HP-7200, HP-7200H, HP-7200HH (trade name: manufactured by DIC) TECHMORE VG3101L (trade name: manufactured by Mitsui Chemicals Co., Ltd.), YL-933 (trade name: manufactured by Mitsubishi Chemical Corporation), 28 201250387 42580pifl No description for the Chinese manual No. 101120387! 1 line correction This revision date: 101 A triphenol decane type epoxy resin such as EPPN-501 and EPPN-502 (trade name: manufactured by Dow Chemical Japan). Among them, jER828, jER834, jER1001, jER1004 (trade name: manufactured by Mitsubishi Chemical Corporation), TECHMORE VG3101L (trade name: manufactured by Mitsui Chemicals Co., Ltd.), EPPN-501, EPPN-502 (trade name) It is preferable to obtain a cured film or the like having high adhesion to various substrates, as manufactured by Dow Chemical Japan (manufactured by the company). The epoxy resin which can be used in the ink of the present invention may be one type of compound or a mixture of two or more types of compounds. When the content of the epoxy resin is 〇5 wt% to 2% by weight based on the total amount of ink (in terms of solid content) of the present invention, the adhesion of the obtained cured film to various substrates is obtained. Preferably, the content of the ring &amp; resin is preferably 55 Wt% 〜 10 wt%, and more preferably 〇 5 wt% 〜 7 wt%. The 0-butyleneimine compound&gt; is a maleimide compound, and is not particularly limited to, for example, a compound represented by the following formula (4). The oxime IT olefin light amine compound shown below can be obtained by pure, for example, a reaction. ~amine and anhydride into [Chemical 4] 29 201250387 42580pifl is the Chinese manual of No. 101120387. There is no slash correction. This revision date: In the formula (6) of August 30, 101, R1G and R12 are each independently hydrogen or sulfhydryl, and R11 is represented by the following formula (7). The base of the divalent. R13—X—R14—(7) In the formula (7), R13 and R14 are each independently a discontinuous (non-adjacent) any methylene group which may be substituted by oxygen and has an alkyl group having 1 to 18 carbon atoms. A divalent group having an aromatic ring which may have a substituent, or a cycloalkyl group which may have a substituent. Examples of the substituent include a carboxyl group, a hydroxyl group, an alkyl group having 1 to 5 carbon atoms, and an alkoxy group having 1 to 5 carbon atoms. From the viewpoint of obtaining a cured film having high heat resistance and the like, it is preferred that each of R13 and R14 is independently a divalent group selected from the group (8) below. [Chemical 6] ^°〇· Ο〇〇·°&quot;(^ (8) In the formula (7), X is a divalent group selected from the group (9) below. 0 30 201250387 42580pifl is the 101120387 The date of the § plus day revision: August 3, 2010, 10, and the shed month book without a line correction [Chemistry 7] CH2 one c==c- HH (9) The cis-butyl diimine compound in one compound of the present invention may be a mixture of more than one compound. The phenolic hydroxyl group-containing resin 〉 hydroxyl group-based resin can preferably use a novolac resin obtained by a condensation reaction of a phenol=, a compound and an aldehyde, and a vinyl-based homopolymer (including a nitride). And ethyl bromide (tetra), a copolymer (including a hydride) of a compound copolymerizable therewith. Examples of the aromatic compound having a phenolic hydroxyl group include phenol, o-nonylphenol, m-nonylphenol, p-nonylphenol, o-ethylphenol, m-ethylphenol, p-ethylphenol, o-butylphenol, and m-butyl. Phenol, p-butylphenol, 2,3-xylenol (xylenol), 2,4-xylenol, 2,5-xylenol, 2,6-xylenol, 3,4-xylenol, 3,5-xylenol, 2,3,5-trimethylphenol, 3,4,5-tridecylphenol, p-phenylbenzene, resorcinol, hydroquinone ), benzoic acid monomethyl ether, pyroallol, bisphenol A, bisphenol F, terpene containing terpene skeleton, gallic acid, gallic acid ester, α-naphthol And naphthol and the like. 31 201250387 42580pifl Corrected flood season: August 1, 30, 2011 No. 101120387 Chinese manual without scribe line correction as aldehydes, examples include: furfural, trimeric knee, furfural, benzofural, schloss Acid, and so on. Examples of the compound copolymerizable with vinylphenol include (meth)acrylic acid or a derivative thereof, styrene or a derivative thereof, maleic anhydride, vinyl acetate, and acrylonitrile. Specific examples of the phenolic hydroxyl group-containing resin include Resitop PSM-6200 (trade name 'Mengrong Chemical Industry Co., Ltd.'), sh〇n〇1 BRG-555 (manufactured by 00 'Showa Denko (share)), Maruka Lyncur MS-2P, Maruka Lyncur CST70, Maruka Lyncur PHM-C (trade name, manufactured by Maruzen Petrochemical Co., Ltd.). The phenolic hydroxyl group-containing resin which can be used in the ink of the present invention may be one type of compound or a mixture of two or more types of compounds. &lt;1.7-6. Dimeric murine amine resin> U The melamine resin is not particularly limited as long as it is a resin produced by polycondensation of melamine and furfural, and examples thereof include methylol melamine and etherified methylol melamine. A condensate such as benzoguanamine, hydroxydecyl benzoguanamine, or etherified hydroxydecylbenzamide or the like. Among these, a condensate of etherified hydroxymethyl melamine is preferred from the viewpoint of good chemical resistance of the obtained cured film or the like. Specific examples of the melamine resin include Nikalac MW-30, MW-30HM, MW-390, MW-100LM, and MX-750LM (trade name, manufactured by Sanwa Chemical Co., Ltd.). The melamine resin which can be used in the ink of the present invention may be one compound or a mixture of two or more compounds. 32 201250387 42580pifl is the 101120387 Chinese _ book __ county revision period: 8 August 30, 2011 epoxy hardener> The hard domain obtained by the step-up upgrade, etc. (4) chemical properties, the ink of this ^ It may contain an epoxy hardener. As the epoxy curing agent, a hydrazine anhydride curing agent or a polyamine curing agent or the like is preferable. Ο-^ anhydride-based hardener, exemplified by: cis-butanic acid anhydride, tetrahydro-o-methyl;: anhydride, hexahydrophthalic anhydride, decyl hexahydrophthalic anhydride, six secrets, three (4), Sefene phthalate, trimellitic anhydride, and stupid ethylene-maleic anhydride copolymer. Examples of the polyamine-based curing agent include diethylenetriamine, triethylenetetramine, tetraethylenepentamine, dicyandiamide, polyamidamine (polyamine resin), ketimine compound, and isophorone. Diamine, m-diphenylene diamine, m-phenylenediamine, anthracene, 3-bis(aminomethyl)cyclohexane, N-aminoethylpyrazine, 4,4'-diaminodiphenyl Teriyaki, 4,4,-diamino-3,3,2-diethyldiphenylnonane, and diaminodiylsulfone. The bad oxygen curing agent which can be used in the ink of the present invention may be one compound or a mixture of two or more compounds. &lt;1.7-8·decane coupling agent&gt; The ink of the present invention may contain a decane coupling agent in order to improve the adhesion to the substrate of the obtained cured film or the like. Specific examples of the decane coupling agent include 3-propenyloxypropyltrimethoxydecane, 3-mercaptopropoxypropyltrimethoxydecane, and 3-glycidylpropyltrifluoride. Oxygen oxime, 3-glycidoxypropyltriethoxy zeoxime, 3-aminopropyldimethoxy zeoxime, and 3-weilylpropyltrimethoxy zeoxime. Among them, 3-propenyl propyl trimethoxy decane, 3-mercapto propylene methoxy propyl 33 201250387 42580pifl is the 101120387 Chinese manual without a slash correction. Amendment date: 1 〇 1 year It is preferred that the bismuth oxide on the 3rd of August and the 3-glycidoxypropyltrimethoxy oxalate have a reactive group and can be copolymerized with other components. The decane coupling agent which can be used in the ink of the present invention may be one compound or a mixture of two or more compounds. &lt;1.8. Viscosity of ink&gt; The viscosity of the ink of the present invention at 25 ° C measured by an E-type viscometer is preferably 200 mPa·s or less, and if the viscosity is 1 mpa_s 2 2 mpas, It is more preferable to use an ink having excellent ejection characteristics of the ink jet apparatus. The viscosity of the ink is preferably 2 mPa.s to 1 〇〇 mPa.s, and particularly preferably 3 mpa.s: mPa.s.虽 When using inks with a viscosity of more than 30 mpa.s at 25 C, the spray is heated to reduce the viscosity of the ink at the time of ejection, thereby achieving a more stable discharge. When the ink jet is weakly heated, the viscosity of the inkjet ink is preferably 2 2 = 2 = 2 mPa.s to 25 mPa.s, particularly preferably 3 to: &lt; 1.9. Method of preparing ink &gt; The component and water can be used as a raw material by a known method. In particular, the ink of the present invention is preferably a component of (8), and if necessary, the above == 2 = component / or other components are mixed, and the component (4) is a component knife. The obtained solution was filtered and degassed to make the ink excellent in ejection property. The above method prepares white 34 201250387 42580pifl Revision date: Π) August 3rd of the following year is the 101120387 Chinese manual without scribe correction. 1.10. Preservation of ink&gt; The ink of the present invention is preserved under Li~pit , the degree of shame in the preservation is small (increased), and the storage stability becomes good. [2. Coating of ink by inkjet method] The ink of the present invention can be applied by a known inkjet method. Examples of the inkjet include a method in which the mechanical energy is applied to the ink from the nozzle, the head is ejected (coated) (so-called piezoelectric method), and thermal energy is applied to the ink to apply the ink handle coating. Cloth method (so-called _ mode). The ink of the present invention can be easily applied to a previously specified album by using the nozzle ink method, whereby a uniform pattern can be formed on a large substrate. (4) Ink head, for example, can be used to solve a heat-generating part containing metal and/or metal oxide. As the metal and/or metal oxide: exemplified: ΜηTMTM is preferably used in the application of the ink of the present invention, and the cloth device is, for example, a device which has a device for accommodating ink. The ink of the inkjet_ink of the black water accommodating section provides energy for coating money, 2 generates ink droplets by the above energy, and performs coating (drawing) corresponding to the coating signal. The above-described ink-jet coating apparatus is also capable of forming a coating apparatus in which the ink-jet head and the ink accommodating portion cannot be separated from each other. Further, the ink accommodating portion may be attached to the bracket with respect to the ink jet head, or may be attached to the bracket, or may be provided at a fixed portion of the apparatus. In the case of the latter, it is also possible to correct the supply member, such as a tube, by supplying ink to the inkjet head without correction by the ink mark 35 201250387 42580pifl date: January 30, 2011. Form. Further, the coating (spraying) temperature is preferably from 1 Torr to 12 (rc), and the viscosity of the ink of the present invention at the ejection temperature is preferably from 1 mPas to 3 〇 mPa.s ° [3. Use of ink] The ink of the present invention is excellent in photocurability, and can form a cured film or the like which exhibits high light transmittance, high heat resistance, and high strength, and is excellent in adhesion to a substrate. Therefore, it can be preferably used in a backlight device or the like. The use of a microlens array or a transparent insulating film used in a touch panel or the like. [4. Cured film or the like] The cured film and the microlens of the present invention are obtained by curing the ink of the present invention described above, and it is preferred that the ink of the present invention is applied onto the surface of the substrate by an inkjet method, This ink is a film or lens obtained by irradiating light such as ultraviolet rays or visible rays to harden a coating film or a dot. Since the cured film and the microlens of the present invention are obtained by curing the ink of the present invention, the light transmittance is high, and the reliability of the change in light transmittance is high even in a severe environment such as high temperature. Hardened film and microlens. The light transmittance at a wavelength of 400 nm after the heat treatment of the cured film of the present invention (having a film thickness of 2.0 μϊη to 3·0 μηη) at 70 ° C for 100 hours is 98% or more, preferably 98.5% or more. Such a cured film can be obtained by applying an ink containing the above compound (A) and a photopolymerization initiator (B) to a surface of a substrate by an inkjet method to form a coating film, and then irradiating the coating film. Ultraviolet or visible light, etc., to harden the coating film, in particular, can be obtained by the following method: that is, the above-mentioned compound (A) and the phase 36 201250387 42580pifl are used by the inkjet method, and the Chinese manual is not underlined. Amendment of this revision date: _ August 30th For the total amount of ink (converted by solid content) 1% by weight of 1% by weight to 2% by weight of the photopolymerization initiator (B) is applied to the surface of the substrate. After the coating film is formed, the coating film is irradiated with light such as ultraviolet rays or visible light to harden the coating film. § A?' When the external line or visible light is emitted, the amount of exposure to be irradiated may be appropriately adjusted as long as it corresponds to the composition of the ink of the present invention, which is obtained by an integrated photometer (CUSTOM UV meter UVC-254). The measured value is about 100 mJ/cm 2 to 3,000 mJ/cm 2 , more preferably about 200 mJ/cm 2 to 〇 2,000 mJ/cm 2 , and still more preferably about 300 mJ/cm 2 to about 1,000 mJ/cm 2 . Further, the wavelength of the ultraviolet ray or visible ray to be irradiated is preferably from 200 nm to 500 nm, more preferably from 200 nm to 400 nm, and still more preferably from 200 nm to 300 nm. Further, the ultraviolet (uv) exposure amount described in the following examples is a value measured by an integrated light meter (CUSTOM UV meter UVC-254). When irradiating light, 'exposure machine can be used. As an exposure machine, if it is equipped with a mercury mercury lamp, a low-pressure mercury lamp, an electrodeless lamp, a metal halide lamp, a halogen lamp, etc., it is irradiated in the range of 200 nm - 500 nm. The device such as ultraviolet light or visible light is not particularly limited, and it is more preferably an exposure machine equipped with a low-pressure mercury lamp, an electrodeless lamp or a metal halide lamp which can emit strong ultraviolet rays in a range of 200 nm to 300 nm. Further, if necessary, the cured film of the present invention which is cured by irradiation with light may be further heated and calcined, for example, heated at 80 ° C to 25 ° C for 10 minutes to 60 minutes, and calcined. Thereby, a stronger cured film or the like can be obtained. The "substrate" to be applied to the ink of the present invention is not required to be used as the ink supply. The number of substrates to be coated is not included in the Chinese version of the specification of the Japanese Patent Specification No. 101120387. Particularly, the shape is not limited to a flat shape, and may be a curved shape. The substrate is not particularly limited, and examples thereof include p-butylated terephthalate (PET) and p-butylene terephthalate (PBT). A polyester resin substrate; a polyolefin tree substrate comprising polyethylene, polypropylene, etc., comprising organic gases such as polyethylene oxide, fluororesin, acrylic resin, polyamine, polycarbonate, and polyimine. Molecular film; substrate containing cellophane; metal foil; laminated film of polyimine and metal case, using cellophane, parchment, polyethylene, clay adhesive, polyvinyl alcohol, starch or carboxylate with filling effect A paper obtained by filling a cellulose (Carb〇xymethyl Cellulose, CMC) or the like; and a glass substrate. Among these, an acrylic resin substrate is preferably used. As the substrate, a substrate i Q containing an additive such as an antioxidant, an anti-deterioration agent, a filler, an ultraviolet absorber, an antistatic agent, and/or an anti-electromagnetic wave agent may be used within a range that does not adversely affect the effects of the present invention. Further, as the substrate, a substrate which is subjected to surface treatment such as liquid-repellent treatment, t-light treatment, plasma treatment, or blast treatment on at least a part of the surface of the substrate as needed may be provided with an easy-to-layer layer or A protective film or a substrate of a hard coat film for a color filter. When the ink of the present invention is used as the ink for forming a microlens, it is preferable to use a substrate such as a liquid-repellent acrylic resin substrate. The thickness of the substrate is not particularly limited, but is usually 10 μm to 4 mm 38 201250387 ζοδυριιΊ is the Chinese manual of No. 101120387. There is no slash correction. The date of this revision is: around August 30, 2001, it is suitable to adjust according to the purpose of use. It is better to be K) 0_~lmm. ^ is 5~~2_' The use of the cured film or the like of the present invention is not particularly limited, and the chemical film of the present invention is excellent in adhesion to a substrate, and is preferably used in a backlight device or the like (4). Manufacturing of a transparent insulating film or the like used. π-column or touch surface ο, Further, when the microlens is formed from the ink of the present invention, the diameter of the lens (dot) is not particularly limited, and is usually af. , especially good: 50: - 05 ^ μ is more than 2_ 15 barrier, especially good for 4_~10 nil mirror height is not particularly limited to the lens diameter ratio, but optical light efficiency is excellent The viewpoint is 0.18 or more' Preferably, when the insulating film is formed from the ink of the present invention, the film thickness of the insulating film is not particularly mosquito, but is preferably G1 μηη to 3ϋμηη, more preferably 02 μηι to 20哗, Further, it is more preferably 〇3μηι~ι〇μιη. The cured film of the invention has a film thickness of (2 〇μιη~3 透 透 = preferably 98% or more, more preferably 98 5% or more. In addition, at 700 million The light transmittance after heat treatment for 100 hours is 98% or more, and the ratio is higher than that of cats. The cured film of the present invention or the like can be used for a microlens array or a transparent lens: therefore, in order to effectively utilize light from a backlight or the like 'Acquired&quot; Sin! · The same optical component 'The cured film of the present invention must have a light transmittance of 98% or more when the film thickness is (W _ · 〇μηη). 39 201250387 42580pifl Revision date: August 2011 Therefore, the light transmission is the urn preface. The Chinese manual has no scribe correction. [5. Optical parts] 士本发, optical parts have the above-mentioned microlens-like optical components with high sinusity. [6. Liquid crystal display]. Therefore, it is not the present invention. The crystal display has the above-mentioned optical component excellent in display characteristics and high reliability. [Examples] Hereinafter, the present invention will be further exemplified by the examples. &gt; = Preparation of inkjet ink and cured film The preparation of the substrate, the preparation of the poetic ink, and the description of the substrate with the cured film of the 'ink_'. [Example 1] The tetrahydrofurfuryl acrylate which is the compound (Α) is Light Acrylate THF_A (trade name: manufactured by Kyoeisha Chemical Co., Ltd., hereinafter referred to as "THF-A"), and as a photopolymerization initiator (B), hydroxy-% hexyl-based _g IRGACURE 184 (trade name: manufactured by BASF, hereinafter abbreviated as rIrl84). The absorbance in the wavelength region of 3 〇〇 nm or more obtained by measuring the uv absorption spectrum of the acrylonitrile solution having a photopolymerization initiator concentration of 〇〇〇1 wt% is 0.1 or less), and pentaerythritol III as the compound (C) "Alkyl acrylate", which is a mixture of Aronix M_305 (trade name: manufactured by Toagosei Co., Ltd., hereinafter referred to as "M305"), and known as "polytetrafluoroethylene PTFE" with a pore size of 1 pm. The membrane filter was subjected to 201250387 42580pifl to the Chinese manual No. 101120387 without a slash correction. The date of this correction was: August 3, 〇, the filter was obtained, thereby obtaining a filtrate (inkjet ink 1). (A) THF-A * 50.00 g (B) Irl84 : 7.00 g (C) M305 : 50.00 g Using an E-type viscometer (TV-22 (trade name) manufactured by Toki Sangyo Co., Ltd.' is the same), The viscosity of the inkjet ink 1 at 25 ° C was measured and the result was 18.2 mPa-s. 0 (Formation of the cured film) A 4 cm square glass substrate (thickness: 0.7 mm) which was subjected to UV ashing by UV ashing (manufactured by SEN LIGHTS Co., Ltd.) to improve the lyophilicity of the surface was prepared. The inkjet ink 1 was injected into an ink cartridge, and then mounted on an inkjet device (DMP-2831 (trade name) manufactured by FUJIFILM Dimatix Inc.) using an inkjet head for 1 〇 pl (pig) When the discharge voltage (piezoelectric voltage) is 20 V, the head temperature is 34 C, the drive frequency is 5 kHz, and the number of times of application is one, the print resolution is set to 512 dpi. 3 cm square pattern. A low-pressure mercury lamp having an exposure illuminance of 15 mW/cm at a wavelength of 254 nm is used to adjust the UV exposure amount at a wavelength of 254 rnn to 300 mJ/cm 2 or 500 mJ/cm 2 to irradiate the glass substrate with light. This obtained a substrate la (UV exposure amount; 300 mJ/cm 2 ) and a substrate lb (UV exposure amount; 500 mJ/cm 2 ) of a cured film having a square pattern. Next, a part of the cured film of the obtained lb substrate was cut with a cutter, and then the film thickness of the step portion was measured using a stylus type film thickness meter P-15 (trade name) manufactured by KLA-Tencor Japan Co., Ltd. The result is 3 parts 41 201250387 42580pifl is the 101120387 Chinese manual without a slash correction. The correction period is 1. The average value of the measurement of the 1st day of August is 2.5 μηη. [Example 2] As a photopolymerization initiator (Β), phenylglyoxylate was used (DAROCUR MBF (trade name; manufactured by bASF, hereinafter abbreviated as "MBF". The concentration of the photopolymerization initiator was 〇〇 The absorbance in the wavelength region of 300 nm or more obtained by UV absorption spectrum measurement of 〇1 wt% of the acetonitrile solution was 0.1 or less. Instead of Ir184, the composition ratio was set to the following, except that 'the preparation was carried out in the same manner as in Example 1. Inkjet ink 2. (A) THF-A : 50.00 g 〇 (8) MBF: 7.00 g (C) M305 : 50.00 g The viscosity of the inkjet ink 2 under 25 was measured using an E-type rotational viscometer. 15.8 mPa.s. Using the inkjet ink 2' and setting the head temperature to 32, except that the substrate 2a having a cured film having a square pattern of 3 〇 111 on one side was obtained in the same manner as in Example 1. And the substrate 2b. Then, using the substrate 2b, it was measured in the same manner as in Example 1, and the film thickness was 2.3 μm. [Example 3] As a photopolymerization initiator (Β), it was used as a hydroxybenzene. Acetic acid_2_[2_ oxo-2-phenyl-ethenyloxy-ethoxy]-B IRGACURE 754 (product name: BASF manufactured by BASF), a mixture of ester and hydroxyphenylacetic acid-2-[2-hydroxy-ethoxy]-ethane, which is abbreviated as "ΙΓ754" by photopolymerization initiator = degree The UV absorption spectrum of 0.001 wt% of acetonitrile solution is determined by UV absorption spectroscopy. 42 201250387 42580pifl is No. 101120387 Chinese text description No slash correction This correction period: The absorbance in the wavelength region above nm on August 30, 1 〇 is 〇 (1) THF-A : 50.00 g (B) Ir754 : 7.00 g (1) THF-A : 50.00 g (B) Ir754 : 7.00 g In addition to the following composition ratio, and the following composition ratio was set, the inkjet ink 3 was prepared in the same manner as in Example 1. (A) THF-A : 50.00 g (B) Ir754 : 7.00 g (C) M305: 50.00 g The viscosity of the inkjet ink 3 at 253⁄4 was measured using an E-type viscometer and found to be 17.2 mPa.s. A substrate 3a and a substrate 3b having a cured film having a square pattern of 3 cm on one side were obtained in the same manner as in Example 1 except that the inkjet ink 3 was used and the nozzle head temperature was set to 33 °C. Then, using the substrate 3b, the film thickness was measured in the same manner as in Example i, and the film thickness was 2.4 μηη. [Example 4] As the compound (A) ', V#155 (trade name: manufactured by Osaka Organic Chemical Industry Co., Ltd.) as cyclohexyl acrylate was used instead of THF_A, and ϋ was set to the following composition ratio, and The inkjet ink 4 was prepared in the same manner as in Example 3. 〃 (A) V#155: 50.00 g (8)1Γ754: 7.00 g (C)M305: 50.00 g The viscosity of the inkjet ink 4 at 25 ° C was measured using an E-type viscometer, and the result was 17.0 mPa·s. Use inkjet ink 4, and set the temperature of the inkjet head to 33〇c, except for 43 201250387 42580pifl. Revision date: August 1st, 3rd, 1st, 3rd day, the Chinese manual, no line correction, A substrate 4a and a substrate 4b having a cured film having a square pattern of 3 cm on one side were obtained in the same manner as in Example 1. On the other hand, the film thickness was measured in the same manner as in Example 1 using the substrate 4b, and as a result, the film thickness was 2.4 μm. [Example 5] As a compound (Α), FA-513AS (trade name: manufactured by Toray Chemical Industry Co., Ltd.), which is a dicyclopentanyl acrylate, was used instead of THF-A, and was set to the following composition ratio. Except for this, the inkjet ink 5 was prepared in the same manner as in Example 3. (A) FA-513AS : 58.30 g (B) Ir754: 7.00 g (C) M305 : 41.70 g The viscosity of the inkjet ink 5 at 25 ° C was measured using an E-type viscometer, and the result was 18.5 mPa·s. . Using the inkjet ink 5, a substrate 5a and a substrate 5b having a cured film having a square pattern of 3 cm were obtained in the same manner as in Example 1. Then, the film thickness was measured in the same manner as in Example 1 using the substrate 5b, and as a result, the film thickness was 2.5 μm. [Example 6] As a compound (Α) 'Aronix Μ-327 which was modified as ε-caprolactone to modify tris(acryloxyethyl) iso-cyanuric acid vinegar (trade name: East Asia Synthetic (Stock), The following is abbreviated as "M-327" instead of THF_A, and as the compound (C) '4HBA (trade name: manufactured by Nippon Kasei Co., Ltd.) as the 4-hydroxybutyl acrylate is used instead of M305. 201250387 42580pifl The inkjet ink 6 was prepared in the same manner as in Example 2 except that the composition ratio was not corrected by the stencil correction of the Japanese Patent No. 101120387. (A) M-327 : 33.30 g (B) MBF: 7.00 g (C) 4HBA : 66.70 g The viscosity of the inkjet ink 6 at 25 ° C was measured using an E-type viscometer, and the result was 32.0 mPa·s. . Q The inkjet ink 6 was used, and the temperature of the head was set to 50 ° C, except that the substrate 6a and the substrate 6b having a cured film having a square pattern of 3 cm on one side were obtained in the same manner as in Example 1. Then, the film thickness was measured in the same manner as in Example 1 using the substrate 6b, and as a result, the film thickness was 2.8 μm. [Example 7] An inkjet ink was prepared in the same manner as in Example 6 except that M-327 (33.30 g) and FA-513AS (33.30 g) were used as the compound (Α), and the following composition ratio was used. 7. (A) M-327 : 33.30 g (A) FA-513AS : 33.30 g (B ) MBF : 7.00 g (C) 4HBA : 33.40 g Viscosity of inkjet ink 7 at 25 ° C using an E-type viscometer The measurement was carried out and found to be 35.2 mPa.s. In the same manner as in Example 1, except that the inkjet ink 7 was used and the temperature of the inkjet head was set to 52 ° C, a square 45 with a side of 3 cm was obtained. 201250387 42580pifl No. 101120387 No. The correction period is corrected: the substrate 7a and the substrate 7b of the cured film of the pattern of August 3, 1st, and 1st. Then, using the substrate 7b, the film thickness measurement was carried out in the same manner as in Example 1, and as a result, the film thickness was 2.8 μm. [Example 8] As the compound (C), KAYARAD DPCA-20 (trade name: manufactured by Nippon Kayaku Co., Ltd.), which is a pentaerythritol hexakisyl acrylate, was used instead of Μ305, and was set as An inkjet ink 8 was prepared in the same manner as in Example 3 except for the following composition ratio. (A) THF-A : 60.00 g Ο (Β ) Ir754 : 7.00 g (C ) DPCA-20 : 40.00 g The measurement of the inkjet ink 8 at 25 ° C was measured using a Ε-type viscometer. 15.8 mPa.s. The inkjet ink 8 was used, and the temperature of the inkjet head was set to 32 ° C, except that the substrate 8a and the substrate 8b having a cured film having a square pattern of 3 cm on one side were obtained in the same manner as in Example 1. Then, using the substrate 8b, the film thickness was measured in the same manner as in Example 1 and the film thickness was 2.4 μm. [Comparative Example 1] As a photopolymerization initiator, irGacuRE907 (trade name: BASF) was used as 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinylpropane_ι-ketone. The production is hereinafter referred to as "Ir907". The absorbance in the wavelength region of 3 〇〇 nm or more obtained by the υν absorption spectrum measurement of the acetonitrile solution having a photopolymerization initiator concentration of 〇〇〇1 %% is more than 〇. As a photopolymerization initiator 46 201250387 42580pifl No. 101120387 Chinese manual No picture jj line correction This revision date: Irl84 of August 3 (1), 1st, 1st year, and set to the following composition ratio, among other things An inkjet ink 9 was prepared in the same manner as in Example 1. (A) THF-A: 50.00 g (B) Ir907: 7.00 g (C) M305: 50.00 g Using an E-type viscometer, a spray at 25 ° C The viscosity of the ink 9 was measured and found to be 18.1 mPa-s. Q In the same manner as in Example 1, except that the inkjet ink 9 was used and the temperature of the head was set to 34 ° C, 3 cm square pattern of cured film substrate 9a and substrate 9b. Then 'substrate 9b is used, in the same way as in Example 1. The film thickness measurement was carried out, and the film thickness was 2.5 μm. [Comparative Example 2] Phenyl acrylate (V#192 (trade name)' manufactured by Osaka Organic Chemical Industry Co., Ltd. was used as the compound (C), and the following is abbreviated as " In the same manner as in Example 3, the inkjet ink 10 was prepared in the same manner as in Example 3 except that THF-A as the compound (A) was used in the following composition ratio. (B) Ir754: 7.00 g (C) M305 : 50.00 g (C) V#192 : 50.00 g The viscosity of the inkjet ink 10 at 25 ° C was measured using an E-type viscometer and found to be 22.2 mPa-s. Using inkjet ink 10, In addition, the temperature of the head was set to 40 ° C, and a square having a side of 3 cm was obtained in the same manner as in Example 1. 201250387 42580pifl No. 101120387 No. The substrate l〇a and the substrate l〇b of the cured film of the pattern on August 3 of the year were used. Then, the film thickness was measured in the same manner as in Example 1 using the substrate 10b, and the film thickness was 2.6 μm. Comparative Example 3] Using 4HRA as the compound (C) instead of The inkjet ink 11 was prepared in the same manner as in Example 3 except that the THF-A' of the material (Α) was set to the following composition ratio. (B) Ir754: 7.00 g (C) M305 : 50.00 g (C 4HBA : 50.00 g The viscosity of the inkjet ink 11 at 25 ° C was measured using an E-type viscometer, and it was 21.6 mPa·s. The inkjet ink 11 was used, and the temperature of the inkjet head was set to 39, except that the substrate 11a and the substrate 11b having a cured film having a square pattern of 3 cm on one side were obtained in the same manner as in Example 1. Then, the film thickness measurement was carried out in the same manner as in Example 1 using the substrate lib, and as a result, the film thickness was 2.2 μηη. [Comparative Example 4] As a compound (C), bisphenol F type hydrazine-modified diacrylic acid § 曰 (Μ208 (trade name), manufactured by Toagosei Co., Ltd., hereinafter abbreviated as "Μ-208") was used instead of the compound. The inkjet ink 12 was prepared in the same manner as in Example 6 except that Μ-327 of (a) was set to the following composition ratio. 7.00 g (B ) MBF : 201250387 42580pifl No. 10112〇387 Chinese manual without underline correction (C) M-208 : (C) 4HBA : Revision date: August 1, 2010 50.00 g 50.00 g Use The E-type viscometer was measured for the viscosity of the inkjet ink 12 at 25 ° C and found to be 25.4 mPa·s. Using the inkjet ink 12' and setting the temperature of the inkjet head to 45 °C, the substrate 12a and the substrate 12b having a cured film having a square pattern of 3 cm on one side were obtained in the same manner as in Example 1. Then, the film thickness was measured in the same manner as in Example 1 using the substrate lib, and as a result, the film thickness was 2.6 μm. &lt;Evaluation of inkjet ink and cured film&gt; Next, the photocurability of the inkjet ink obtained above, the transmittance of the cured film, and the transmittance and strength after the heat resistance test were evaluated. In addition, the shape and dot diameter of the microlens formed by ejecting the inkjet ink (1 to 3 drops onto the surface liquid-repellent substrate (substrate 13) at intervals of 150 μm, / UV hardening The observation was carried out in parallel. The density of the soil plate was as follows. The test methods are as follows. The evaluation results are shown in Table 1 (photohardenability test)' ~ Table using finger contact examples and comparative examples The substrate of the cured square film of the obtained square pattern (la to 12a and a surface having a thickness of 3 cm, and the surface state of the cured film is microscopically b to 12b) is as follows: □ · · Any of the substrate a and the substrate b On the other hand, it does not remain on the surface of the cured film. The following are the results. See the observation. The evaluation finger contact marks are all 49 201250387 42580pifl is the 101120387 Chinese manual without a slash correction. The revised period: August 3, 101 The surface contact marks of the surface are both Δ: slightly left on the surface of the cured film on any of the substrate a and the substrate b. The 'finger contact marks are all finished x: the remaining of the substrate a and the substrate b remain on the surface of the cured film ( Determination of the transmittance of the film) Using the substrate (lb to 12b) of the cured film having a square pattern of 3 (10) squares obtained in each of the examples and the comparative examples, the wavelength was measured by a transmittance measuring device V-670 (trade name: manufactured by JASCO Corporation) Transmittance at nm. Further, a 4 cm square glass substrate (thickness: 0.7 mm) which did not form a cured film was used as a reference. (Transmittance after heat resistance test) 基板 A substrate (ratio to i2b) of a cured film having a square pattern of 3 cm square obtained in each of the examples and the comparative examples was measured at 70° by a transmittance measuring device V-670. The transmittance at a wavelength of 4 〇〇 nm after standing for 1 hour at C. Further, a 4 cm square glass substrate (thickness: 〇 7 mm) which was not formed with a cured film after standing for 100 hours at 702⁄4 was used as a reference. (Intensity measurement) Using the respective examples and comparative examples, the substrate (ratio to 12b) of the cured film having a square pattern of 3 cin square was used, and the pencil hardness was measured in accordance with JIS K 5400 to investigate the strength. 50 201250387 42580pifl Corrected period: August 30, 2011 is No. 10112〇387 Chinese manual No picture dirty correction (observation of microlens shape) Inject inkjet ink 1 into the ink cartridge, and then mount it on the inkjet The DMp_2831 (trade name) manufactured by FUJIFILM Dimatix Inc. uses an inkjet head for 10 pi, with a discharge voltage (piezoelectric voltage) of 20 V, an inkjet head temperature of 34 ° C, and a drive frequency of 5 Under the discharge condition of kHz and the number of times of application, the print resolution was set to 17 〇dpi, and the droplets were ejected onto the surface liquid-repellent substrate (substrate 13) at intervals of μ+m. ◎ Inkjet ink 1 Then, using a low-pressure mercury lamp having an exposure illuminance of 15 mW/cm at a wavelength of 254 nm, the uv exposure at a wavelength of 254 nm is adjusted to 500 mJ/cm 2 to illuminate the substrate, thereby obtaining a π-point. Similarly, the substrate 2c to the substrate 12c having the dot pattern are obtained by using the inkjet ink 2 to the inkjet ink 12. Then, the microlens formed on the substrate (lc to 12c) is observed by an optical microscope. The shape of the observation The case where the shape is a beautiful circle and the size is the same is 〇, and the shape is deformed or the size is deviated to ◎ X. The dot diameter (D) and height (H) of the microlens are also In the measurement of the point shape (H/D), the measurement of the point diameter is performed using the optical microscope ΒΧ51 (trade name) manufactured by OLYMPUS (share). The manufactured stylus type film thickness meter P-15 (trade name) was measured, and the value obtained by dividing the obtained dot height by the dot diameter was made into a dot shape (H/D). The following shows the surface liquid-repellent substrate ( A method of manufacturing the substrate 13). The surface treatment agent 1 is injected into an ink cartridge, and then mounted on an inkjet device (DMP-2831 (trade name) manufactured by FUJIFILM Dimatix Inc.) 51 201250387 42580ρΐΠ is the first ion 7th Chinese The specification has no slash correction. This revision date: _ August 30 In the above, an ink jet head for 10 pi is used under the discharge conditions of a discharge voltage (piezoelectric voltage) of 16 V, an ink jet head temperature of 30 ° C, a driving frequency of 5 kHz, and a coating number of times. The printing resolution was set to 512 dpi to apply a square pattern of 3 on the acrylonitrile substrate (thickness: 2.0 mm). A low-pressure mercury lamp having an exposure illuminance of 15 mW/cm at a wavelength of 254 nm was used to adjust the UV exposure amount at a wavelength of 254 nm to 500 mJ/cm 2 to irradiate the coated substrate, thereby obtaining a surface dial. A liquid substrate (substrate 13' with a liquid-repellent cured film). In addition, a part of the liquid-repellent hardened film on the surface was cut by a cutter, and then the film thickness of the step portion was measured using a stylus type film thickness meter P-15 (trade name) manufactured by KLA-Tencor Japan Co., Ltd. As a result, the average value of the measurement at three sites was 0.96 μιη. Next, the method of preparing the surface treatment agent 1 is shown below. In the following composition, propylene glycol monoterpene ether (manufactured by Tokyo Chemical Industry Co., Ltd., hereinafter referred to as "PGME"), M402 (trade name: manufactured by East Asia Synthetic Co., Ltd., hereinafter abbreviated as "M402"), and the following formula (hereinafter referred to as "M402") 1〇) U6LPA (product name: manufactured by Shin-Nakamura Chemical Industry Co., Ltd., abbreviated as "U6LPA"), and BYK UV 3500 (product name: BYK-Chemie Japan) (manufactured by the company), abbreviated as "BYK3500") and Ir754, and then filtered by a membrane filter (pore size 〇_2 μιη) made of Ultra High Molecular Weight Polyethylene (UPE). The filtrate (surface treatment agent 1) was obtained. 52 201250387 42580pifl No. 101120387 Chinese manual without underline correction Date: August 30, 2011 [Chem. 8] hcb 〇/3(10) PGME : 7.000 g M402 : 2.560 g U6LPA : 2.560 g BYK3500 : 0.330 g Ir754 : 0.770 g The viscosity of the surface treatment agent 1 at 25 ° C was measured using a Ε-type viscometer (TV_22 (trade name) manufactured by Toki Sangyo Co., Ltd., the same applies hereinafter), and it was 5.1 mPa·s. (Adhesion test of the microlens on the surface-treated substrate) Adhesive tape ("Νο·6〇〇" tape manufactured by Sumitomo 3M (share) was attached to the obtained substrate (lc~Ik) with a dot pattern (trade name) After that, the state of the dot pattern remaining on the substrate at the time of the separation was observed, and the adhesion of the microlens to the surface liquid-repellent substrate was evaluated. Furthermore, the evaluation criteria are as follows. Soil ο dot pattern is completely unchanged χ: - Part or all of the point flaking [Table 1] Example 1 Example 2 Example 3 Photocuring 〇 ◎ ◎ ◎ Transmittance (%) 99.0 99.1 99.5 99.4 Transmittance after heat resistance test ( %) 98.7 98.7 99.4 99.2 Strength 3H 3H 3H 3H~ Example 7 Example 8 ◎ ◎ 98.6 99.4 98.5 99.3 3H 3H 53 201250387 42580pifl Correction period: 1〇1月30日日第101120387号 Chinese manual without line [Table 2] Photocuring property 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Transmittance (%) ◎ ◎ ◎ Transmittance after heat resistance test (%) 98.2 99.2 98.8 Strength 95.5 96 94.3 3H 3H Η [Table 3] [Table 4] Comparative Γ~~*. Substrate__Comparative Example 2^ Comparative Example 3 Comparative Example 4 Microlens Shape ____ Substrate 10c Substrate lie Substrate 12c Point Diameter (μιη) 33^----° 〇〇 Height (μπι) 7^---- ~34 33 33 H/D 〇.23^~--- -__ 7.2 7.6 7.7 Adhesion---0.21 0,23 0.23 For example, according to Table 1 In the case of the I ^ plate la, the finger contact traces the substrate lb of the base of Example 1 and the example 2 to the surface of the cured film, but the substrate traces are completely untouched by all the substrate, the hand' The contact mark ί is determined by the photocurability of the ink of the present invention. 201220387 42580pifl is the Chinese manual of the 101120387, and there is no slash correction. The correction date is the knot of the transmittance of 400 nm in the summer of August. The cured film obtained by the ink 1 to the I ink 8 showed a pass rate of 98% or more, and the light transmittance was good, but the = ratio obtained from the inkjet ink 9 showed a low value of 98% or less. _After a. The transmittance of Ο at a wavelength of 400 nm after standing at 7 〇C for 1 〇C, the hardened surface obtained from the inkjet ink 1 to the inkjet ink showed 98% or more. High transmittance, good penetration = low value of hardening 臈 98% or less obtained from inkjet ink 9 to inkjet ink 12. , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , As a result, the dot diameter of the microlens obtained from the ink of the present invention is 32 handsome to 34 handsome and small, and (10) is 〇 2 or more. Therefore, the production of optical components such as a light guide plate in the light extraction process is performed on the date of the present invention. Further, as a result of confirming the adhesion of the microlens to the surface liquid-repellent substrate, the microlens obtained from the present invention was not peeled off from the substrate, and good adhesion was exhibited. [Industrial Applicability] The ink of the present invention is excellent in photocurability, and the obtained cured film and microlens exhibit a high-strength, high-strength, and high-strength. Therefore, the ink of the present invention can be used for the manufacture of a microlens array used for a napkin or the like, or a transparent insulating film used in a touch panel or the like. 55 201250387 42580pifl No. 101120387 Chinese manual without scribe correction This revision date: August 30, 101. In addition, since a microlens with good adhesion can be formed on the surface liquid-repellent substrate, it is particularly preferably used. A light guide plate or the like for manufacturing a liquid crystal display or a display panel. [Simple description of the diagram] None. [Main component symbol description] None. 56 201250387 42580ρϊΠ Amendment date: August 1st, 1st, August 30th, No. 101120387 Chinese manual, no slash correction, patent specification of this invention, pen knife, do not fill in 乂 _ &lt;2006.011 - Π006. oil (The format, sequence and Bold type, please do not change anything, ※mark ※Application number: . Op ※Application period: Classification: hn person-, invention name: (Chinese / English) ^ Light-curable inkjet ink, cured film, microlens , optical parts and liquid crystal display 1 § PHOTO-CURABLE INKJET INK, CURED FILM, MICROLENS, OPTICAL COMPONENT AND LIQUID CRYSTAL DISPLAY 2. Abstract: The present invention provides a photocurable inkjet ink which has sufficient photohardenability A cured film and a microlens which are excellent in adhesion to a substrate and excellent in light transmittance and further excellent in heat resistance, and a photocurable inkjet ink comprising (meth) propyl represented by the following formula (1) Dilute acid cool (phantom, light ◎ polymerization initiator (B) 'The above photopolymerization initiator (8) is the following photopolymerization initiator, that is, the concentration of the photopolymerization initiator is The absorbance in the wavelength region of 3 (10) Å or more obtained by UV absorption spectroscopy of the 猜1 feeling is 0.1 or less, and the cured film obtained from the ink is thief (the film thickness is 2·0 μm 〜 3_0μιη) The transmittance of the film after heat treatment for 1 hour is more than 98% at a wavelength of 400 nm. 1 201250387 42580pifl is the 101120387 Chinese manual without a slash correction Amendment date: August 30, 1st, 1st, 3rd, English abstract: The disclosure provides a photo-curable inkjet ink which has sufficient photo-curing properties and can form cured films and microlenses having an excellent adhesion property to substrates, an excellent light transmittance and an excellent heat resistance. The photo-curable inkjet ink includes a (meth)acrylate (A) represented by a following formula (1) and a photopolymerization initiator (B). The photopolymerization initiator (B) is a photopolymerization initiator in which an absorbance in a wavelength range of 300 nm or more measured by a UV Absorption spectrometry of an acetonitrile solution with an concentration of 0.001 wt% of the photopolymerization initiator is 0.1 or less. After a 100-hour heat treatment under 70°C is conducted to a cured film obtained from the ink (with a membrane thickness of 2.0 Ιηη to 3.0 μιη), a light transmittance of the film is 98% or more at a wavelength of 400 nm. 201250387 42580pifl is the Chinese manual of No. 101120387. There is no slash correction. This revision period: August 3rd, the following year. Patent application scope: 1. A photocurable inkjet ink comprising the following formula (1) The (meth) acrylate (A) and the photopolymerization initiator (b) are represented, and the photopolymerization initiator (B) is determined by UV absorption spectrometry of an acetonitrile solution having a photopolymerization initiator concentration of 0.001 wt%. The obtained photopolymerization initiator in the wavelength region of 3 〇〇 nm or more and the photopolymerization initiator of 〇·1 or less, and the hardened ruthenium film obtained from the photocurable inkjet ink at 70 C (the film thickness is 2) ·0 is 1~3.0 μη〇 The transmittance of the film after 100 hours of heat treatment at a wavelength of 400 nm is 98% or more, [Chemical 1] (In the formula (1), n of Ri are each independently hydrogen or a fluorinated group having a carbon number of 1 to 6 'r2 has an alicyclic structure or a heterocyclic structure (however, it does not contain the formula (2-1) Or an organic group of the structure represented by the formula (2-2), n is an integer of 1 - 1 )) [Chemical 2] (2-1) (2-2) 2. Photocurable inkjet ink as described in the scope of application of the patent item i. 201250387 42580pifl No. 101120387 Chinese manual without a slash correction This revision period: August 2011 On the 30th, the photopolymerization initiator (B) is contained in an amount of 1% by weight to 2% by weight based on 100% by weight of the total amount of the photocurable inkjet ink. 3. The photocurable inkjet ink according to the above aspect of the invention, wherein the photopolymerization initiator (8) is selected from the group consisting of a phenylacetate-based initiator, a phenylacetic acid-based initiator, and At least one compound of the group consisting of the ketone ketones. 4. The photocurable inkjet ink according to the scope of claim ,i, wherein the ruthenium polymerization initiator (8) is selected from the group consisting of (tetra) phenylacetate vinegar and phenylethyl ketone initiator At least one compound in the group consisting of. 5. If the photo-hard-dip inkjet ink described in the patent application (4) is applied, the starting agent (B) is selected from the group consisting of phenylacetate Μ2·side = soil-based ethoxycarbonyl-ethoxy] _B, phenylacetic acid_2_[2 Cuichang Ethyl]-ethyl ester, and stupid acid ethyl ketone group are one less compound. -r T j 〇 In the photocurable inkjet ink according to Item 11, the bicyclic oxime 2 2 1 ′′R has a selected from the group consisting of cyclohexane, cyclopentane, ^^; Four-hydrogen material, internal vinegar of more than 5 members, daughter-in-law, Jingangxuan, pie bite, brewed imine ring, cyclically condensed organic base. a photocurable inkjet ink according to the above item 1 in at least one of the group consisting of diazins and 2'4,6-trione, and (meth) Acrylate (A) is selected from the group consisting of (meth)acrylic acid cyclohexene 58 201250387 42580pifl No. 101120387 Chinese manual without straight line correction date: August 30, 101) decenoic acid tetrahydrogen, (methyl Isodecyl acrylate, (methyl) pentane, tricyclodecane dimethanol di(meth)acrylic acid vinegar, = soil: a = one-(meth)acrylic acid vinegar, γ-butane vinegar (fluorenyl) Acrylic acid 1 , ΐ ΐ cyanuric acid Ethylene ethoxide modified bis (meth) acrylate vinegar, isotrimeric succinic acid Ethylene ethoxide modified tris (methyl) propionate, and At least a ruthenium compound in the group consisting of three (propylene SiL oxyethyl) isocyanuric acid is modified. 8. The photocurable inkjet ink according to the above aspect of the invention, which further comprises a compound (C) having a radical polymerizable double bond other than the above (meth)acrylic acid (A). 9. The photocurable inkjet ink according to claim 8, wherein the compound (C) is selected from the group consisting of n-butyl (meth)acrylate and tert-butyl (meth)acrylate. Mercapto) lauryl acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, (meth) acrylate 4-butyl vinegar, (mercapto) acrylate Oxyethyl ester, ethoxyethyl (meth) acrylate, decyl butyl (meth) acrylate, bismuth ethylene glycol di(meth) acrylate, monoethyl ol-(mercapto) acrylate , polyethylene glycol bis(indenyl) ruthenium acrylate, monopropanol mono(methyl) propyl ketone, ι, 4-butanediol di(methyl) propyl ruthenium, 1,6 -Hybridol di(methyl)-propyl acetoacetate, neopentyl diol di(meth) acrylate, trishydroxypropyl propyl tris(meth) acrylate, pentaerythritol tris(decyl) acrylate, two At least one compound selected from the group consisting of pentaerythritol hexa(meth) acrylate and caprolactone-modified pentaerythritol hexa(nonyl) propylene vinegar. 10. The photocurable inkjet ink according to the scope of the patent application No. 59 201250387 42580pifl is the Chinese manual of No. 101120387. There is no slash correction. The revision period is: August 30, the water includes the interface. Active agent (D). 11. The photocurable inkjet ink according to claim 1, wherein the surfactant (D) is selected from the group consisting of an anthrone-based surfactant, an acrylic surfactant, and a fluorine-based surfactant. At least one compound in the group consisting of. 12. The photocurable inkjet ink according to claim 1, which further comprises an ultraviolet absorber (E). 13. The photocurable inkjet ink according to claim 1, which further comprises an antioxidant (F). The film is obtained by curing the photocurable inkjet ink according to any one of the above claims. A microlens obtained by hardening a photocurable inkjet ink according to any one of the above claims. &quot; Descrição ^ Optical parts, including the optical part crystal display as described in the patent application section _ 17. -, including the patent scope of the φ, 201250387 42580pifl, the Chinese manual of the 101120387 Amendment date: August 30, 101. IV. Designated representative map (1) The representative representative of the case is: None. (2) A brief description of the component symbols of this representative figure: None. 5. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: R2 (1)