JP5934247B2 - Energy beam curable liquid resin composition for bonding, ink composition for light shielding, and method for producing optical component using them - Google Patents

Description

  The present invention relates to an energy ray-curable liquid resin composition for bonding protective panels, touch panels, display bodies and the like, a light-shielding ink composition such as protective panels and touch panels, and a method for producing an optical component using the same.

  Since a display body such as a liquid crystal display body uses a thin glass substrate, a protection panel is installed through an air layer for the purpose of protecting the glass substrate. In addition, with the expansion of applications, not only protective panels but also touch panels have been installed on the front of display panels.

  In recent years, a protective panel or a touch panel is directly bonded to a display body as a method of simultaneously satisfying the reduction in visibility caused by an air layer and the reinforcement of the display body. For pasting, a sheet-like double-sided pressure-sensitive adhesive sheet (Patent Document 1) or a liquid resin is used. Also, the protective panel and the touch panel are bonded together in the same manner.

  When a photocurable liquid resin is used for bonding the protective panel and the touch panel or the display body, or when the touch panel and the display body are bonded, the light is blocked by the light-shielding ink layer of the protective panel. It is regarded as a problem. A combined type of photocuring and thermosetting has been proposed for the poor curing of the light shielding part (Patent Document 2). FIG. 1 shows a conventional embodiment. As shown in FIG. 1, for example, when the conventional energy ray curable resin composition 3 is used for bonding a protective panel or touch panel 1 to a display body (panel) or a touch panel 4, light from the light source 10 is emitted. The cured portion 5 of the energy beam curable resin composition is formed in the transmitted portion. However, as shown in FIG. 1, in the conventional embodiment, the portion of the protective panel 1 where the light from the light source 10 is shielded by the light-shielding ink layer 2 becomes poorly cured, and the energy beam curable resin composition has not been cured. A cured portion 6 is produced.

Japanese Patent Laid-Open No. 06-69530 JP 2010-26539 A

  In the thermosetting combined type of Patent Document 2, there is a problem that a sufficient curing state cannot be obtained because there is an upper limit (80 ° C.) in the thermosetting temperature due to a problem of curing failure due to oxygen inhibition and an optical film guarantee condition. .

  Therefore, the problem to be solved by the present invention is to provide a liquid resin at a low temperature at a low temperature, such as that which can be formed under the light shielding ink of the protective panel and the display body or touch panel, or under the light shielding ink of the touch panel and the display body. Protective panel and display or touch panel, liquid resin composition for bonding touch panel and display, and light shielding ink composition for protective panel and touch panel, and bonding kit including them, which can be sufficiently cured An object of the present invention is to provide a method of manufacturing an optical component using them.

  In the present invention, a compound capable of curing an energy ray-curable liquid resin composition for bonding is added to the light-shielding ink composition, and the light-shielding ink layer formed therefrom and the liquid resin composition for bonding are formed. This was achieved by finding that upon contact, the liquid resin composition began to cure even at low temperatures in the absence of energy rays.

That is, the present invention is as follows.
A protective panel having a light-shielding ink layer formed from a light-shielding ink composition containing a compound capable of curing the energy beam-curable liquid resin composition and the display body, or the energy beam-curable liquid resin composition can be cured. A light-shielding ink layer formed from a light-shielding ink composition containing a compound capable of curing a protective panel and a touch panel having a light-shielding ink layer formed from a light-shielding ink composition containing the compound, or an energy beam curable liquid resin composition Energy beam curable liquid resin used for the production of an optical component in which a touch panel and a display body are bonded via an energy beam curable liquid resin composition so that the surface having the light-shielding ink layer is inside. An energy ray-curable liquid resin composition comprising a photopolymerization initiator.
The above-mentioned energy beam curable liquid, wherein the compound capable of curing the energy beam curable liquid resin composition comprises one or more compounds selected from the group consisting of compounds that generate radicals, cations or anions. Resin composition.
A protective panel having a light shielding ink layer formed from a light shielding ink composition and a display body, or a protection panel having a light shielding ink layer formed from a light shielding ink composition and a touch panel, or from a light shielding ink composition. Protection used for manufacturing an optical component in which a touch panel having a formed light-shielding ink layer and a display body are bonded via an energy ray-curable liquid resin composition so that the surface having the light-shielding ink layer is on the inside. An ink composition for light shielding a panel or touch panel, comprising a compound capable of curing the energy ray curable liquid resin composition.
The above-described light-shielding ink composition, wherein the compound capable of curing the energy ray-curable liquid resin composition comprises one or more compounds selected from the group consisting of compounds that generate radicals, cations or anions. .
A kit for laminating optical components including the energy ray-curable liquid resin composition and the light-shielding ink composition.
A protective panel having a light-shielding ink layer formed from a light-shielding ink composition containing a compound capable of curing the energy beam-curable liquid resin composition and a display body, or an energy beam-curable liquid resin composition can be cured. A light-shielding ink layer formed from a light-shielding ink composition containing a compound capable of curing a protective panel and a touch panel having a light-shielding ink layer formed from a light-shielding ink composition containing the compound, or an energy beam curable liquid resin composition A touch panel and a display body having a light-shielding ink layer so that the surface having the light-shielding ink layer is on the inside, the method for producing an optical component bonded through an energy ray curable liquid resin composition,
(1) A step of disposing the light-shielding ink composition on one surface of a protective panel or touch panel to form a light-shielding ink layer;
(2) The surface of the protective panel having the light-shielding ink layer and / or one surface of the display body, the surface of the protective panel having the light-shielding ink layer and / or one surface of the touch panel, or the surface of the touch panel having the light-shielding ink layer and / or Or the process of apply | coating an energy-beam curable liquid resin composition to one surface of a display body,
(3) Between the protection panel and the display body, or between the protection panel and the touch panel, or between the touch panel and the display body, with the surface having the light shielding ink layer of the protection panel or touch panel inside. The protective panel and the display body, or the protective panel and the touch panel, or the touch panel and the display body are pasted so that the energy ray curable liquid resin composition is interposed between the protective panel and the display body. And (4) the energy beam curable liquid resin composition interposed between the protective panel and the display body, between the protective panel and the touch panel, or between the touch panel and the display body. By irradiating energy rays from the surface direction having the light-shielding ink layer, and the light-shielding ink layer and the energy ray-curable resin Method of manufacturing an optical component, which comprises a step of curing the radiation-curable liquid resin composition by contacting a formed product.
The above-mentioned method for producing an optical component, wherein the compound capable of curing the energy ray curable liquid resin composition contains one or more compounds selected from the group consisting of compounds that generate radicals, cations or anions. .
-Optical parts manufactured by the above method.
An optical display device including the above optical component.

  According to the present invention, the energy ray curable liquid resin composition at a location where light does not reach, which can be formed under the light shielding ink of the protective panel and the display body or the touch panel, or under the light shielding ink of the touch panel and the display body. It can be cured sufficiently even at low temperatures.

It is a figure which shows the outline of the manufacturing method of the optical component using the conventional ink composition for light shielding, and an energy-beam curable liquid resin composition. It is a figure which shows the outline of an example of the manufacturing method of the optical component using the ink composition for light shielding of this invention, and an energy-beam curable liquid resin composition.

  The present invention relates to an energy ray curable liquid resin composition for bonding optical components, a light shielding ink composition for a protective panel or a touch panel in an optical component, and an optical component and an optical display device manufactured from them.

<Energy beam curable liquid resin composition>
The present invention provides a protective panel having a light-shielding ink layer formed from a light-shielding ink composition containing a compound capable of curing an energy beam-curable liquid resin composition and a display body, or an energy beam-curable liquid resin composition. A protection panel and a touch panel having a light-shielding ink layer formed from a light-shielding ink composition containing a curable compound, or a light-shielding ink composition containing a compound capable of curing an energy ray curable liquid resin composition Energy beam curing used for the production of optical components in which a touch panel having a light shielding ink layer and a display body are bonded via an energy ray curable liquid resin composition so that the surface having the light shielding ink layer is inside. It is an energy type liquid resin composition characterized by including a photoinitiator.

  Examples of the energy rays in the present invention include electron beams, X-rays, ultraviolet rays, electron beams having high energy such as visible light in a low wavelength region, or electromagnetic waves. Visible light is preferred.

  The energy beam curable liquid resin composition of the present invention contains an energy beam curable component and a photopolymerization initiator.

  Any known component can be used as the energy ray-curable component. An acrylic resin, an epoxy resin, a silicone resin composition, and the like can be exemplified, but an acrylic resin and an epoxy resin are preferable.

  The photopolymerization initiator in the present invention is a compound that generates radicals, cations, anions, and the like when irradiated with energy rays, thereby curing the energy ray-curable component. The amount of the photopolymerization initiator is 0.1 to 30% by weight, preferably 0.5 to 20% by weight, particularly 1 to 10% by weight, based on the energy beam curable liquid resin composition.

  Examples of the radical generator include 2,6-dimethylbenzoyldiphenylphosphine oxide, 2,4,6-trimethylbenzoyldiphenylphosphine oxide, 2,6-dichlorobenzoyldiphenylphosphine oxide, and 2,6-dimethoxybenzoyl. Acylphosphine oxides such as diphenylphosphine oxide; Acylphosphine esters such as 2,4,6-trimethylbenzoylphenylphosphinic acid methyl ester; 4- (2-hydroxyethoxy) phenyl (2-hydroxy-2- 2-propyl) ketone, 2,2-dimethoxy-1,2-diphenylethane-1-one, 2-methyl-1,4- (methylthio) phenyl-2-morpholinopropan-1-one, 1-phenyl-2- Hydroxy-2 Acetophenones such as methylpropan-1-one, 1-hydroxycyclohexyl-phenylketone, 4-diphenoxydichloroacetophenone, diethoxyacetophenone, 1- (4-isopropylphenyl) -2-hydroxy-2-methylpropan-1-one Benzophenone compounds such as benzophenone, methyl benzoylbenzoate, 4-phenylbenzophenone, hydroxybenzophenone 3,3′-dimethyl-4-methoxybenzophenone, diphenoxybenzophenone, and the like. These may be used alone or in combination of two or more.

  Cation generators include ionic photoacid generators such as aryldiazonium salts, diarylhalonium salts, triarylsulfonium salts, triphosphonium salts, iron allene complexes, titanocene complexes, and arylsilanol aluminum complexes; nitrobenzyl esters, sulfonic acids Nonionic photoacid generators such as derivatives, phosphoric acid esters, phenolsulfonic acid esters, diazonaphthoquinone, and N-hydroxyimide sulfonates are listed. These may be used independently and 2 or more types may be used together.

  Examples of the anion generator include 1,10-diaminodecane, 4,4'-trimethylenedipiperazine, carbamates and derivatives thereof, cobalt-amine complexes, aminooxyiminos, ammonium borates and the like. These may be used independently and 2 or more types may be used together.

  As will be described later, the energy ray curable liquid resin composition of the present invention is a photopolymerization initiator when the light-shielding ink composition contains the compound (b) as a compound capable of curing the energy ray curable liquid resin composition. In addition to (c) the compound needs to be contained, and when the light-shielding ink composition contains the compound (c) as a compound capable of curing the energy ray curable liquid resin composition, (B) it is necessary to contain the compound. In the former case, in the energy ray curable liquid resin composition, the compound (c) is preferably 0.01 to 20% by weight, more preferably 0.05 to 15% by weight, and particularly preferably 0.1 to 10% by weight. In the latter case, the compound (b) is preferably contained in an amount of 0.1 to 50% by weight, more preferably 0.5 to 30% by weight, and particularly preferably 1 to 10% by weight.

<Light-shielding ink composition>
The present invention provides a protective panel having a light-shielding ink layer formed from a light-shielding ink composition and a display body, or a protection panel having a light-shielding ink layer formed from a light-shielding ink composition and a touch panel, or a light-shielding ink. For the production of optical components in which a touch panel having a light-shielding ink layer formed from a composition and a display body are bonded via an energy ray curable liquid resin composition so that the surface having the light-shielding ink layer is on the inside. A light-blocking ink composition for a protective panel or touch panel to be used, comprising a compound capable of curing an energy ray-curable liquid resin composition.

  The light-shielding ink composition in the present invention may be obtained by adding a compound capable of curing the energy ray-curable liquid resin composition to any ink that forms a light-shielding film. Examples of conventionally known light-shielding inks include water-based inks, solvent-based inks, thermosetting inks, and energy beam curable inks.

  Water-based inks, solvent-type inks, and thermosetting inks are inks that form a coating film by evaporation or thermal polymerization of a solvent by heating with an oven or the like. Commercially available products include, for example, solvent ink series (GLS, INQ, IPX, ISX, MRX, etc.) manufactured by Teikoku Ink Manufacturing Co., Ltd., functional ink series (MIR, TOC, MIB, MIX, etc.), solvents manufactured by Seiko Advance Co., Ltd. Examples include ink series (HAC, MS8, HF, # 1690N, etc.), functional ink series (mirror surface ink, OSA, IR, etc.), and reactive ink series (Epilite, AP, etc.) manufactured by Jujo Chemical.

  The energy ray curable ink is an ink that is cured by reaction by irradiating energy rays such as UV and EB to form a coating film. Commercially available products include, for example, Lake Cure Ink series (4300OP, 4700VX, 4700LP, etc.) manufactured by Jujo Chemical Co., Ltd. UV type ink series (UV-PAL, etc.) manufactured by Teikoku Manufacturing Co., Ltd., UV type ink series (Seiko Advance Co., Ltd.) HUG, RIG FP, etc.).

  When the compound capable of curing the energy ray curable liquid resin composition in the present invention is mixed with the energy ray curable liquid resin composition in the absence of energy rays, a temperature of 80 ° C. or less (hereinafter referred to as “low temperature”). Preferably, it refers to a compound that generates radicals, cations, or anions at a temperature of 60 ° C. or lower, particularly normal temperature, and cures the energy ray curable liquid resin composition. The compound capable of curing the energy beam curable liquid resin composition is (a) an energy beam curable liquid resin composition that does not contain the compound (b) and (c) described below at low temperature in the absence of energy beam. Even when mixed, the compound that cures this, and (b) activated in the absence of energy rays and mixed with an energy ray curable liquid resin composition containing the compound (c) described later at low temperature, energy rays A compound that cures the curable liquid resin composition, and (c) the compound (b) is active even when mixed with the energy beam curable liquid resin composition containing the compound (b) at a low temperature in the absence of energy rays. It refers to any compound selected from the compounds that cure and cure the energy ray curable liquid resin composition.

  Examples of the compound (a) include organic peroxides (eg, ketone peroxides, peroxyketals, diacyl peroxides, peroxyesters, peroxydicarbonates), Lewis acids (boron trifluoride, zinc chloride, chloride). Aluminum, iron chloride, tin chloride, etc.), azo compounds (azobisisobutyronitrile, 1,1'-azobis (cyclohexanecarbonitrile), etc.), acids (organic acids or sulfonium salts that generate acids when heated at low temperatures) Acid generators), bases (polyamines such as aliphatic polyamines, amine compounds such as imidazole, hydrazide, and ketimine, compounds that generate amine compounds by low-temperature heating), polyamide resins, polymercaptan, and platinum group metal compounds or The complex (platinum (IV) chloride, chloroplatinic acid hexahydrate, bis (a Kiniru) and bis (triphenylphosphine) platinum complexes) and the like. Depending on the type, reactivity, and temperature of the energy ray curable liquid resin composition, the compound (b) described later can be used as the compound (a).

  (A) Even if it mixes with an energy-beam curable liquid resin composition at low temperature in the absence of energy rays, the compound (a) cures even if mixed with the energy-ray-curable liquid resin composition. It is not possible.

  The compound (a) is preferably contained in the light-shielding ink composition in an amount of 0.01 to 80% by weight, more preferably 0.1 to 50% by weight, and particularly preferably 1 to 30% by weight.

  Examples of the compound (b) include organic peroxides (eg, ketone peroxides, peroxyketals, hydroperoxides, dialkyl peroxides, diacyl peroxides, peroxy esters), polyamines, azo compounds (azobisisobutyrate). Nitrile, 1,1'-azobis (cyclohexanecarbonitrile), acid anhydride (phthalic anhydride, trimellitic anhydride, pyromellitic anhydride, etc.), aromatic amine, hydrazide, amine adducts, dicyandiamide, polysulfide Examples thereof include resins. Depending on the type, reactivity, and temperature of the energy ray curable liquid resin composition, the compound (a) described above can be used as the compound (b).

  When the light-shielding ink composition includes the compound (b) as a compound capable of curing the energy beam curable liquid resin composition, the compound (c) needs to be included in the energy beam curable liquid resin composition.

  The compound (b) is preferably contained in the light-shielding ink composition in an amount of 0.01 to 80% by weight, more preferably 0.1 to 50% by weight, and particularly preferably 1 to 30% by weight.

  Examples of the compound (c) include metals or complexes thereof, amines, tertiary amines, boric acid esters, Lewis acids, and imidazoles.

  Examples of metals include iron (Fe), aluminum (Al), cobalt (Co), manganese (Mn), tin (Sn), zinc (Zn), vanadium (V), chromium (Cr), and zirconium (Zr). Indium (In), titanium (Ti), and metal complexes include, for example, acetylacetone, acetoacetate ester, carboxylic acid, alkoxide, amine compound, amide compound, hydroxymate acid, ketone compound, imine compound, thiol compound Complexes of the above-mentioned complexing agents with the above metals, specifically, acetylacetone vanadyl (Nippon Chemical Industry Co., Ltd .: Nasemuvanadil) which is a complex of acetylacetone and vanadium, vanadium oxytriisobutoxide (Nichia Chemical Co., Ltd.) which is vanadium alkoxide Manufactured)) and the like.

  When the light-shielding ink composition contains the compound (c) as a compound capable of curing the energy beam curable liquid resin composition, the compound (b) needs to be included in the energy beam curable liquid resin composition.

  The compound (c) is preferably contained in the light-shielding ink composition in an amount of 0.01 to 80% by weight, more preferably 0.1 to 50% by weight, and particularly preferably 1 to 30% by weight.

  The compound that can cure the energy beam curable liquid resin composition can be appropriately selected according to the components of the energy beam curable resin composition. The compound capable of curing the energy ray curable liquid resin composition is, for example, as follows when the energy ray curable resin composition is an acrylic resin or an epoxy resin.

When using an acrylic energy ray curable resin composition,
(A) A photopolymerization initiator is added to the energy beam curable resin composition, and the light shielding ink composition contains a compound (a) which is a compound capable of curing the energy beam curable liquid resin composition. It is preferable to contain an oxide or an azo compound; or (b) In addition to the photopolymerization initiator, (b) the above-described organic peroxide as the compound, or the above-described energy ray-curable resin composition An azo compound is contained, and in the light shielding ink composition, as the compound (c) which is a compound capable of curing the energy ray curable liquid resin composition, the above-described metal or a complex thereof, or the above-mentioned Or (c) an energy ray curable resin composition, in addition to the photopolymerization initiator, (c) the aforementioned metal or complex thereof as a compound, or the aforementioned In the light-shielding ink composition, the above-mentioned organic peroxide or the above-mentioned azo compound is used as the compound (b) which is a compound capable of curing the energy ray-curable liquid resin composition. It is preferable to contain.

When using an epoxy energy beam curable resin composition,
(A) A photopolymerization initiator is added to the energy beam curable resin composition, and the light shielding ink composition includes a compound capable of curing the energy beam curable liquid resin composition as the compound (a), Acids and bases, especially acids include organic acids or sulfonium salt-based acid generators that generate acids when heated at low temperatures, bases generate amine compounds such as polyamines, imidazoles, hydrazides, and amine compounds when heated at low temperatures Or (a) In addition to the photopolymerization initiator, (b) the aforementioned polyamine as the compound is added to the energy ray curable resin composition, and the light shielding ink composition contains Preferably contains a tertiary amine as described above as the compound (c) which is a compound capable of curing the energy ray-curable liquid resin composition; (C) In addition to the photopolymerization initiator, the energy ray curable resin composition contains the above-mentioned tertiary amine as the compound (c), and the light shielding ink composition contains an energy ray curable resin composition. As the compound (b), which is a compound capable of curing the liquid resin composition, it is preferable to contain the aforementioned polyamine.

<Lamination kit>
The present invention is a kit for laminating an optical component comprising the energy ray curable liquid resin composition and the light shielding ink composition. This kit may be in a form containing the energy ray-curable liquid resin composition and the light-shielding ink composition, which are contained in separate containers.

  In the bonding kit of the present invention, the light shielding ink composition is used to form a light shielding ink layer of a protective panel or a touch panel, and the energy ray curable liquid resin composition is a protective panel having a light shielding ink layer. Used to bond a display body, or a protective panel having a light-shielding ink layer and a touch panel, or a touch panel having a light-shielding ink layer and a display body so that the surface having the light-shielding ink layer is inside. Is done. Therefore, in this kit, the light-shielding ink composition contains the compound (a), and the energy ray-curable liquid resin composition contains the photopolymerization initiator; the light-shielding ink composition contains the compound (b), The energy ray curable liquid resin composition contains a photopolymerization initiator and (c) compound; or the light shielding ink composition contains (c) compound, and the energy ray curable liquid resin composition contains photopolymerization initiator. And (b) a compound.

<Method for manufacturing optical component>
The present invention provides a protective panel having a light-shielding ink layer formed from a light-shielding ink composition containing a compound capable of curing an energy beam-curable liquid resin composition and a display body, or an energy beam-curable liquid resin composition. A protection panel and a touch panel having a light-shielding ink layer formed from a light-shielding ink composition containing a curable compound, or a light-shielding ink composition containing a compound capable of curing an energy ray curable liquid resin composition A method for producing an optical component in which a touch panel having a light-shielding ink layer and a display body are bonded together via an energy ray-curable liquid resin composition so that the surface having the light-shielding ink layer is on the inside, These steps are included.

(1) A step of disposing the light-shielding ink composition on one surface of a protective panel or touch panel to form a light-shielding ink layer;
(2) The surface of the protective panel having the light-shielding ink layer and / or one surface of the display body, the surface of the protective panel having the light-shielding ink layer and / or one surface of the touch panel, or the surface of the touch panel having the light-shielding ink layer and / or Or the process of apply | coating an energy-beam curable liquid resin composition to one surface of a display body,
(3) Between the protective panel and the display body, between the protective panel and the touch panel, or between the touch panel and the display body, with the surface having the light-shielding ink layer of the protective panel or touch panel as the inside. The protective panel and the display body, or the protective panel and the touch panel, or the touch panel and the display body are bonded so that the energy ray curable liquid resin composition is interposed therebetween. And (4) the energy ray-curable liquid resin composition interposed between the protective panel and the display body, between the protective panel and the touch panel, or between the touch panel and the display body. By irradiating energy rays from the surface direction having the light-shielding ink layer, and the light-shielding ink layer and the energy ray-curable resin assembly Curing the radiation-curable liquid resin composition by contacting the object.

  In the step (1), the light shielding ink composition containing a compound capable of curing the energy ray curable liquid resin composition is disposed on one surface of the protective panel by, for example, printing, and then heated, for example, to form a solvent. Is volatilized or polymerized to form a light-shielding ink coating layer. The coating thickness of the light-shielding ink composition is, for example, 0.5 μmt to 100 μmt, and preferably 1 μmt to 50 μmt.

  In the step (2), in the case of a protective panel and a display body, the energy beam curable liquid resin composition is applied to the surface of the protective panel having the light-shielding ink layer, or the energy beam curable liquid resin composition is applied to one surface of the display body. In this step, the energy ray curable liquid resin composition is applied to both the surface of the protective panel having the light-shielding ink layer and one surface of the display body. The same applies to the case of the protective panel and the touch panel, and the case of the touch panel and the display body. The coating thickness of the energy ray curable liquid resin composition is, for example, 20 μmt to 1000 μmt, preferably 50 μmt to 500 μmt.

  In the step (3), the energy beam curable resin composition is formed by combining the protective panel and the display body, the protective panel and the touch panel, or the touch panel and the display body so that the surface having the light-shielding ink layer is on the inside. The light-shielding ink layer disposed on the protective panel or the touch panel comes into contact with the energy ray curable resin composition.

  The energy ray curable liquid resin composition interposed between the protective panel and the display body, between the protective panel and the touch panel, or between the touch panel and the display body is the step (4). The energy ray curable liquid resin composition in the exposed portion is cured by irradiating energy rays from the surface direction having the light shielding ink layer of the protective panel or touch panel, and the light shielding ink layer and the energy ray curable type are cured. In this step, the energy ray curable liquid resin composition in the light shielding part is cured by the action of a compound that can be brought into contact with the resin composition to cure the energy ray curable liquid resin composition contained in the light shielding ink layer. The curing temperature in this step is to cure the energy ray curable liquid resin composition contained in the energy ray curable liquid resin composition and the compound capable of curing the energy ray curable liquid resin composition contained in the light shielding ink layer. It can be set as appropriate according to the type of compound that can be produced. The curing temperature is room temperature, room temperature, or low temperature (for example, 40 ° C. to 80 ° C.).

  FIG. 2 shows a preferred embodiment of the present invention. As shown in FIG. 2, for example, a light-shielding ink layer 20 formed from the light-shielding ink composition of the present invention for bonding a protective panel or touch panel 1 and a display body (panel) or touch panel 4, and an energy ray curable type When the resin composition 30 is used, the cured portion 5 of the energy ray curable resin composition 30 is formed in the portion where the light from the light source 10 is transmitted. Furthermore, as shown in FIG. 2, in a preferred embodiment of the present invention, the energy ray curable resin composition 30 is formed in the light-shielding ink layer even in a portion where light is shielded by the light-shielding ink layer 20 of the protection panel. By the contact with 20, the curing reaction of the contact portion 40 of the energy ray curable resin composition starts and is sufficiently cured to form the cured portion 5.

  The present invention is an optical component manufactured by the above method, in which a protective panel and a display body are bonded, an optical component in which a protective panel and a touch panel are bonded, or an optical component in which a touch panel and a display body are bonded. is there.

  Furthermore, the present invention is an optical display device including the above optical component.

  The following examples illustrate the invention.

Examples 1 to 3 and Comparative Example 1
<Light-shielding ink composition>
An ink composition having the composition (parts by weight) shown in Table 1 was prepared by a conventional method. Nursem vanadyl and vanadium oxytriisobutoxide are compounds (c) that can cure the energy ray-curable liquid resin composition.

<Energy beam curable resin composition A (bonding resin)>
An energy ray curable resin composition A having the composition (parts by weight) shown in Table 2 was prepared by a conventional method. I-184 and lucillin TPO are photoinitiators, and kayakmen H is a compound (b) that can cure the energy ray-curable liquid resin composition.

Test Examples The ink compositions prepared in Examples 1 to 3 and Comparative Example 1 were printed on a glass substrate (50 × 40 × 0.7 mm) at an outer periphery of 5 mm with a coating thickness of 100 μmt and dried in an oven at 150 ° C. for 60 minutes. A glass substrate with a light-shielding ink layer was obtained.

  A glass substrate with a light-shielding ink layer and glass (45 × 35 × 0.7 mm) are bonded together with a thickness of 200 μmt using the energy ray curable resin composition A so that the light-shielding ink layer is on the inside, and then light-shielded. It was cured by irradiating UV from the glass substrate side having the ink layer.

  After UV curing, it was allowed to stand at room temperature for a predetermined time (1 hour or 24 hours), and the cured state of the resin composition A in the light shielding part under the ink was confirmed by palpation. The results are shown in Table 3.

  According to the present invention, an energy ray curable resin composition in a place where light does not reach can be sufficiently obtained at a low temperature, as can be achieved by the display panel or touch panel under the light shielding ink of the protective panel or the display body or touch panel of the touch panel. Therefore, it is useful for production of an optical component or the like in which a protective panel and a display body or a touch panel, or a touch panel and a display body are bonded together via an energy ray curable resin composition.

[Explanation of symbols]
1: Protection panel or touch panel 2: Light-shielding ink layer formed from a conventional light-shielding ink composition 3: Conventional energy ray-curable resin composition 4: Display panel or touch panel 5: Cured portion of the energy ray-curable resin composition 6: Uncured portion of energy beam curable resin composition 10: Light source 20: Light shielding ink layer 30 formed from the light shielding ink composition of the present invention 30: Energy beam curable resin composition of the present invention 40: Light shielding of the present invention Contact portion between ink layer and energy ray curable resin composition of the present invention

Claims (6)

A protective panel having a light shielding ink layer formed from a light shielding ink composition and a display body, or a protection panel having a light shielding ink layer formed from a light shielding ink composition and a touch panel, or a light shielding ink composition. The touch panel having the light-shielding ink layer and the display body are disposed through the energy ray-curable liquid resin composition containing the energy ray-curable component and the photopolymerization initiator so that the surface having the light-shielding ink layer is on the inside. a light-shielding ink composition of the protective panel or the touch panel used in the manufacture of optical components bonded, a light-shielding ink composition which comprises a compound capable of curing the radiation-curable liquid resin composition There,
The energy ray curable component is at least one selected from an acrylic resin and an epoxy resin,
When the energy ray curable component is an acrylic resin,
(A) The light-shielding ink composition contains an organic peroxide as a compound capable of curing the energy ray-curable liquid resin composition; or
(A) The energy beam curable resin composition contains an organic peroxide, and the light shielding ink composition is a metal or a complex thereof, or an amine as a compound capable of curing the energy beam curable liquid resin composition. Containing; or
(C) The energy ray curable resin composition contains a metal or a complex thereof, or an amine, and the light shielding ink composition is an organic peroxide as a compound capable of curing the energy ray curable liquid resin composition. Containing
When the energy ray curable component is an epoxy resin,
(A) The light-shielding ink composition is an organic acid, a sulfonium salt-based acid generator that generates an acid by low-temperature heating, an amine compound, and a low-temperature heating as a compound that can cure the energy ray-curable liquid resin composition. Containing at least one selected from compounds that generate amine compounds; or
(A) The energy ray curable resin composition contains a polyamine, and the light shielding ink composition contains a tertiary amine as a compound capable of curing the energy ray curable liquid resin composition; or
(C) The energy beam curable resin composition contains a tertiary amine, and the light shielding ink composition contains a polyamine as a compound capable of curing the energy beam curable liquid resin composition.
A light-shielding ink composition . Characterized in that it comprises a compound capable of curing the radiation-curable liquid resin composition is a radical, a cation or one or more compounds selected from the group consisting of a compound capable of generating an anion, light-shielding ink of claim 1, wherein Composition. A compound capable of curing a protective panel having a light-shielding ink layer formed from a light-shielding ink composition containing a compound capable of curing an energy beam-curable liquid resin composition, or a display panel, or a compound capable of curing an energy beam-curable liquid resin composition A light-shielding ink layer formed from a light-shielding ink composition comprising a protective panel and a touch panel having a light-shielding ink layer formed from a light-shielding ink composition comprising An energy beam curable liquid resin composition used for manufacturing an optical component in which a touch panel and a display body having the light shielding ink layer are bonded to each other through an energy beam curable liquid resin composition so that the surface having the light shielding ink layer is on the inside. a ones, energy-ray-curable liquid resin sets, characterized in that it includes an energy ray-curable component and a photopolymerization initiator Objects, and a claim 1 or bonding kit of optical components, including second light blocking ink composition according,
The energy ray curable component is at least one selected from an acrylic resin and an epoxy resin,
When the energy ray curable component is an acrylic resin,
(A) The light-shielding ink composition contains an organic peroxide as a compound capable of curing the energy ray-curable liquid resin composition; or
(A) The energy beam curable resin composition contains an organic peroxide, and the light shielding ink composition is a metal or a complex thereof, or an amine as a compound capable of curing the energy beam curable liquid resin composition. Containing; or
(C) The energy ray curable resin composition contains a metal or a complex thereof, or an amine, and the light shielding ink composition is an organic peroxide as a compound capable of curing the energy ray curable liquid resin composition. Containing
When the energy ray curable component is an epoxy resin,
(A) The light-shielding ink composition is an organic acid, a sulfonium salt-based acid generator that generates an acid by low-temperature heating, an amine compound, and a low-temperature heating as a compound that can cure the energy ray-curable liquid resin composition. Containing at least one selected from compounds that generate amine compounds; or
(A) The energy ray curable resin composition contains a polyamine, and the light shielding ink composition contains a tertiary amine as a compound capable of curing the energy ray curable liquid resin composition; or
(C) The energy beam curable resin composition contains a tertiary amine, and the light shielding ink composition contains a polyamine as a compound capable of curing the energy beam curable liquid resin composition.
Kit for bonding optical components . A compound capable of curing a protective panel having a light-shielding ink layer formed from a light-shielding ink composition containing a compound capable of curing an energy beam-curable liquid resin composition, or a display panel, or a compound capable of curing an energy beam-curable liquid resin composition A light-shielding ink layer formed from a light-shielding ink composition comprising a protective panel and a touch panel having a light-shielding ink layer formed from a light-shielding ink composition comprising A method for producing an optical component comprising: a touch panel having a display body, and a surface having the light-shielding ink layer bonded to each other via an energy ray curable liquid resin composition,
(1) A step of disposing the light-shielding ink composition on one surface of a protective panel or touch panel to form a light-shielding ink layer;
(2) The surface of the protective panel having the light-shielding ink layer and / or the surface of the display body, the surface of the protective panel having the light-shielding ink layer and / or the surface of the touch panel, or the surface of the touch panel having the light-shielding ink layer. And / or applying an energy ray curable liquid resin composition to at least one surface of the display body,
(3) Between the protective panel and the display body, between the protective panel and the touch panel, or between the touch panel and the display body, with the surface having the light-shielding ink layer of the protective panel or touch panel as the inside. The protective panel and the display body, or the protective panel and the touch panel, or the touch panel and the display body are bonded so that the energy ray curable liquid resin composition is interposed therebetween. And (4) the energy ray-curable liquid resin composition interposed between the protective panel and the display body, between the protective panel and the touch panel, or between the touch panel and the display body. By irradiating energy rays from the surface direction having the light-shielding ink layer, and the light-shielding ink layer and the energy ray-curable resin assembly Look including the step of curing the radiation-curable liquid resin composition by contacting the object,
The energy ray curable liquid resin composition includes an energy ray curable component and a photopolymerization initiator,
The energy ray curable component is at least one selected from an acrylic resin and an epoxy resin,
When the energy ray curable component is an acrylic resin,
(A) The light-shielding ink composition contains an organic peroxide as a compound capable of curing the energy ray-curable liquid resin composition; or
(A) The energy beam curable resin composition contains an organic peroxide, and the light shielding ink composition is a metal or a complex thereof, or an amine as a compound capable of curing the energy beam curable liquid resin composition. Containing; or
(C) The energy ray curable resin composition contains a metal or a complex thereof, or an amine, and the light shielding ink composition is an organic peroxide as a compound capable of curing the energy ray curable liquid resin composition. Containing
When the energy ray curable component is an epoxy resin,
(A) The light-shielding ink composition is an organic acid, a sulfonium salt-based acid generator that generates an acid by low-temperature heating, an amine compound, and a low-temperature heating as a compound that can cure the energy ray-curable liquid resin composition. Containing at least one selected from compounds that generate amine compounds; or
(A) The energy ray curable resin composition contains a polyamine, and the light shielding ink composition contains a tertiary amine as a compound capable of curing the energy ray curable liquid resin composition; or
(C) The energy beam curable resin composition contains a tertiary amine, and the light shielding ink composition contains a polyamine as a compound capable of curing the energy beam curable liquid resin composition.
An optical component manufacturing method characterized by the above. 5. The optical component according to claim 4 , wherein the compound capable of curing the energy ray curable liquid resin composition comprises one or more compounds selected from the group consisting of compounds that generate radicals, cations or anions. Production method. A manufacturing method of an optical display device including an optical component , wherein the optical component is manufactured by the method according to claim 4 or 5 .