TW201335699A - Energy ray-curable liquid resin composition for bonding, ink composition for light shielding, and method for producing optical component using said liquid resin composition and said ink composition - Google Patents

Abstract

An energy ray-curable liquid resin composition, which is used in the production of an optical component that is obtained by bonding a protective panel and a display element or a touch panel, or alternatively a touch panel and a display element with the energy ray-curable liquid resin composition interposed therebetween, and which is characterized by containing a photopolymerization initiator; an ink composition for light shielding of protective panels or the like, which is used in the production of an optical component that is obtained by bonding a protective panel and a display element or a touch panel, or alternatively a touch panel and a display element with an energy ray-curable liquid resin composition interposed therebetween, and which is characterized by containing an energy ray-curable liquid resin composition; and a method for producing an optical component, which uses the energy ray-curable liquid resin composition and the ink composition.

Description

Energy ray-curable liquid resin composition for bonding, ink composition for light-shielding, and manufacturing method using the same

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

Since a display body such as a liquid crystal display body uses a thin glass substrate, a protective panel is provided through the air layer to protect the glass substrate. Moreover, as the application expands, the front surface of the display panel is not only provided with a protective panel, but also a touch panel is often provided.

In recent years, a method of simultaneously satisfying the decrease in the visibility due to the air layer and the reinforcement of the display body is performed, and the protective panel or the touch panel is directly attached to the display body. The bonding system uses a sheet-like adhesive sheet on both sides (Patent Document 1) or a liquid resin. Moreover, the bonding of the protective panel and the touch panel is also performed in the same manner.

When the protective panel is bonded to the touch panel or the display body or the touch panel is bonded to the display body, when the photo-curable liquid resin is used, the light is blocked due to the light-shielding ink layer or the like of the protective panel, resulting in poor curing. It is considered a problem. In the case of hardening of the light-shielding portion, a type of photohardening and thermal hardening has been proposed (Patent Document 2). Fig. 1 shows a conventional implementation. As shown in FIG. 1, for example, when the conventional energy ray-curable resin composition 3 is used for bonding a display panel (panel) or a touch panel 4 to a protective panel or a touch panel 1, light from the light source 10 is transmitted. Part of the energy The hardened portion 5 of the wire-hardened resin composition. However, as shown in FIG. 1, in the conventional embodiment, the portion of the light-shielding ink layer 2 of the protective panel 1 is shielded from the light source 10, and the energy-line-hardened resin composition is produced. The unhardened portion 6.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Publication No. 06-692530

[Patent Document 2] JP-A-2010-26539

The type of thermal curing of Patent Document 2 has a problem that a sufficient hardening state cannot be obtained because of a problem of poor curing due to oxygen inhibition or an upper limit (80 ° C) of the heat curing temperature due to the conditions of the optical film.

Therefore, the problem to be solved by the present invention is to provide a liquid resin which may be disposed under the light-shielding ink of the protective panel and the display body or the touch panel, or the position where the light is not reached by the light-shielding ink of the touch panel and the display body. a liquid resin composition which is sufficiently cured at a low temperature, a display body or a touch panel, or a liquid resin composition for bonding a touch panel and a display body, and a light-shielding ink composition for a protective panel or a touch panel, and the like A kit for bonding and a method of manufacturing an optical component using the same.

The present invention has been found to be added to the ink composition for shading prior to bonding. When the light-shielding ink layer formed by the energy ray-curable liquid resin composition is brought into contact with the liquid resin composition for bonding, the liquid resin composition can be started at a low temperature in the absence of an energy ray. The hardening of the object thus achieves the present invention.

That is, the present invention is as follows.

. An energy ray-curable liquid resin composition which is a protective panel and a display body having a light-shielding ink layer formed of a light-shielding ink composition containing a compound capable of curing an energy ray-curable liquid resin composition, or a protective panel having a light-shielding ink layer formed of a light-shielding ink composition containing a compound capable of curing an energy ray-curable liquid resin composition, or a touch panel, or having a liquid crystal capable of curing by an energy ray The touch panel and the display body of the light-shielding ink layer formed of the light-shielding ink composition of the compound which is cured by the resin composition, the energy-curable liquid resin composition is interposed so that the surface of the light-shielding ink layer is inside. The energy ray-curable liquid resin composition used in the manufacture of optical parts is characterized by containing a photopolymerization initiator.

. The energy ray-curable liquid resin composition as described above, wherein the compound which hardens the energy ray-curable liquid resin composition contains one or more compounds selected from the group consisting of a compound which generates a radical, a cation or an anion.

. A light-shielding ink composition which is a protective panel and a display body having a light-shielding ink layer formed of a light-shielding ink composition, or a protective panel and a touch panel having a light-shielding ink layer formed of a light-shielding ink composition Or having a light-shielding ink layer formed of the light-shielding ink composition The touch panel and the display body are shielded by a protective panel or a touch panel used for manufacturing an optical component in which the energy ray-curable liquid resin composition is bonded so that the surface of the light-shielding ink layer is inside. The ink composition is characterized by containing a compound which hardens the energy ray-curable liquid resin composition.

. The light-shielding ink composition according to the above aspect, wherein the compound which hardens the energy ray-curable liquid resin composition contains one or more compounds selected from the group consisting of a compound which generates a radical, a cation or an anion.

. A bonding kit for an optical component comprising the above-described energy ray-curable liquid resin composition and the above-described light-shielding ink composition.

. A method for producing an optical component, comprising: a protective panel having a light-shielding ink layer formed of a light-shielding ink composition containing a compound capable of curing an energy ray-curable liquid resin composition; a protective panel and a touch panel formed of a light-shielding ink layer formed by the light-shielding ink composition of the compound which hardens the energy-curable liquid resin composition, or which has a composition capable of hardening the energy-curable liquid resin The touch panel and the display body of the light-shielding ink layer formed by the light-shielding ink composition of the compound, such that the surface of the light-shielding ink layer is inside, and the optical fiber-curable liquid resin composition is attached to the optical layer. The method for manufacturing a part includes the steps of: (1) disposing the light-shielding ink composition on one surface of a protective panel or a touch panel to form a light-shielding ink layer, and (2) shielding the protective panel from light. The surface of the ink layer and/or the display body On one side, or on one side of the protective panel having the light-shielding ink layer and/or one side of the touch panel, or on the surface of the touch panel having the light-shielding ink layer and/or one side of the display body, applying energy line hardening a step of forming a liquid resin composition, (3) using a surface of the protective panel or the touch panel having the light-shielding ink layer as an inner side, between the protective panel and the display body, or the protective panel and the touch panel Between the touch panel and the display body, the protective panel and the display body, or the protective panel and the touch are bonded to each other in a state in which the energy ray-curable liquid resin composition is interposed. a step of the panel or the touch panel and the display body, and (4) separating between the protection panel and the display body, or between the protection panel and the touch panel, or the touch The energy ray-curable liquid resin composition between the panel and the display body irradiates an energy ray from a surface direction of the light-shielding ink layer, and the light-shielding ink layer and the energy ray-curable resin group Contacting, so that the energy ray curable liquid resin composition of step hardens.

. In the above method for producing an optical component, the compound which hardens the energy ray-curable liquid resin composition contains one or more compounds selected from the group consisting of a compound which generates a radical, a cation or an anion.

. An optical component manufactured by the above method.

. An optical display device comprising an optical component as described above.

According to the present invention, the energy ray-curable liquid resin composition may be exposed to the light-shielding ink of the panel and the display body or the touch panel, or the portion of the light-shielding ink of the touch panel and the display body that is incapable of reaching light. It can also be completely hardened.

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

<Energy line hardening liquid resin composition>

The present invention relates to an energy ray-curable liquid resin composition which is a protective panel and a display having a light-shielding ink layer formed of a light-shielding ink composition containing a compound capable of curing an energy ray-curable liquid resin composition. a protective panel having a light-shielding ink layer formed of a light-shielding ink composition containing a compound capable of hardening an energy ray-curable liquid resin composition, or a touch panel, or having an energy beam hardened by containing The touch panel and the display body of the light-shielding ink layer formed by the light-shielding ink composition of the compound of the liquid resin composition which is hardened by the liquid resin composition, and the energy ray-curable liquid resin is interposed so that the surface of the light-shielding ink layer is inside. An energy ray-curable liquid resin composition used for the production of an optical component to which a composition is bonded is characterized by containing a photopolymerization initiator.

The energy lines in the present invention are listed as electron beams, X-rays, ultraviolet rays, An electron beam or an electromagnetic wave having a high energy such as visible light in a low-wavelength region is preferable, and ultraviolet light or visible light in a low-wavelength region is preferable based on the simplicity and popularity of a conventional device.

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

As the energy ray hardening component, any conventional component can be used. The acrylic resin, the epoxy resin, the polyoxymethylene resin composition, and the like are preferable, but an acrylic resin or an epoxy resin is preferable.

The photopolymerization initiator in the present invention is a compound which hardens an energy ray hardening component by irradiating an energy ray to generate a radical, a cation, an anion or the like. The amount of the photopolymerization initiator is 0.1 to 30% by weight, preferably 0.5 to 20% by weight, and preferably 1 to 10% by weight based on the energy ray-curable liquid resin composition.

The radical generating agent is exemplified by, for example, 2,6-dimethylbenzimidyldiphenylphosphine oxide, 2,4,6-trimethylbenzimidyldiphenylphosphine oxide, 2,6-dichlorobenzene. Mercaptophosphine oxides such as formazan diphenylphosphine oxide, 2,6-dimethoxybenzimidyl diphenylphosphine oxide; 2,4,6-trimethylbenzimidylphosphine Tertylphosphonates such as methyl ester; 4-(2-hydroxyethoxy)phenyl(2-hydroxy-2-propyl)one, 2,2-dimethoxy-1,2-diphenyl Ethyl l-butanone, 2-methyl-1,4-(methylthio)phenyl-2-morpholinylpropan-1-one, 1-phenyl-2-hydroxy-2-methylpropane 1-ketone, 1-hydroxycyclohexyl-phenyl ketone, 4-diphenoxydichloroacetophenone, diethoxyacetophenone, 1-(4-isopropylphenyl)-2-hydroxyl An acetophenone compound such as -2-methylpropan-1-one; benzophenone, methyl benzomethionate, 4-phenylbenzophenone, hydroxybenzophenone, A benzophenone compound such as 3,3'-dimethyl-4-methoxybenzophenone or diphenoxybenzophenone. These may be used singly or in combination of two or more.

The cation generating agent is exemplified by an aryl diazonium salt, a diaryl halosulfonium salt, a triarylsulfonium salt, a triterpene salt, an allene complex, a titanocene complex, and a aryl group. Nonionic light such as nitrobenzyl alcohol, sulfonic acid derivative, phosphate, phenolsulfonate, diazonaphthoquinone, N-hydroxy quinone imide phosphate, etc. An acid generator or the like. These may be used singly or in combination of two or more.

The anion generators are exemplified by 1,10-diaminodecane, 4,4'-trimethylene dipiperidine, urethanes and derivatives thereof, cobalt-amine complexes, and amine oxy imines. Base, ammonium borate, etc. These may be used singly or in combination of two or more.

In the energy ray-curable liquid resin composition of the present invention, the light-shielding ink composition contains (b) a compound as a compound which can cure the energy ray-curable liquid resin composition, except for the photopolymerization initiator. It is necessary to contain (c) a compound, and the light-shielding ink composition contains (c) a compound as a compound which hardens the energy ray-curable liquid resin composition, and must contain (b) in addition to the photopolymerization initiator. Compound. In the case of the former, in the energy ray-curable liquid resin composition, the compound (c) preferably contains 0.01 to 20% by weight, more preferably 0.05 to 15% by weight, most preferably 0.1 to 10% by weight, in the latter In case, the compound (b) preferably contains 0.1 to 50% by weight, more preferably 0.5 to 30% by weight, most preferably 1 to 10% by weight.

<Light-shielding ink composition>

The present invention relates to a light-shielding ink composition which is a protective panel and a display body having a light-shielding ink layer formed of a light-shielding ink composition, or a protective panel having a light-shielding ink layer formed of a light-shielding ink composition The touch panel or the touch panel having the light-shielding ink layer formed of the light-shielding ink composition and the display body are arranged such that the surface having the light-shielding ink layer is inside, and the energy ray-curable liquid resin is interposed The light-shielding ink composition of the protective panel or the touch panel used for the manufacture of the optical component to be bonded is characterized by containing a compound which can harden the energy ray-curable liquid resin composition.

In the ink composition for light-shielding of the present invention, a compound which can cure the energy ray-curable liquid resin composition can be added to any ink which forms a light-shielding film. Light-shielding inks conventionally used in the past are exemplified by aqueous inks, solvent-based inks, thermosetting inks, and energy ray-curable inks.

The aqueous ink, the solvent-based ink, and the thermosetting ink are inks which are evaporated by a heat of an oven or the like to form a coating film by heat polymerization. Commercially available companies include solvent-based ink series (GLS, INQ, IPX, ISX, MRX, etc.) manufactured by Imperial Ink Manufacturing Co., Ltd., functional ink series (MIR, TOC, MIB, MIX, etc.), and solvents manufactured by SEIKO ADVANCE. Ink series (HAC, MS8, HF, #1690N, etc.), functional ink series (mirror ink, OSA, IR, etc.), reactive ink series (EPLITE, AP, etc.) manufactured by Shijo Chemical Co., Ltd.

The energy line hardening ink is irradiated by an energy line such as UV or EB. The reaction hardens to form an ink for the coating film. Commercially available, for example, RAYCURE ink series (4300OP, 4700VX, 4700LP, etc.) manufactured by Shijo Chemical Co., Ltd., UV ink series (UV-PAL, etc.) manufactured by Imperial Ink Manufacturing Co., Ltd., and UV type ink series manufactured by SEIKO ADVANCE Co., Ltd. ( HUG, RIG FP, etc.).

The compound which hardens the energy ray-curable liquid resin composition in the present invention means a temperature at 80 ° C or lower when mixed with the energy ray-curable liquid resin composition in the absence of an energy ray (hereinafter referred to as The "low temperature" is preferably a compound which hardens at a temperature of 60 ° C or lower, preferably a radical, a cation or an anion at a normal temperature, and which hardens the energy ray-curable liquid resin composition. The compound which hardens the energy ray-curable liquid resin composition means any one selected from the following compounds: (a) in the absence of an energy ray, even at a low temperature and without the compound (b) described later and (c) a compound in which the energy ray-curable liquid resin composition of the compound is mixed, and the compound can be hardened, (b) in the absence of an energy ray, even at a low temperature and energy line hardening of the compound containing (c) described later a liquid resin composition which is still activated, a compound which hardens the energy ray-curable liquid resin composition, and (c) an energy line which contains the compound (b) even at a low temperature in the absence of an energy ray A compound in which the hardening type liquid resin composition is mixed and the compound (b) is activated to harden the energy ray-curable liquid resin composition.

The above compound (a) is exemplified by an organic peroxide (for example, a ketone peroxide, a peroxyketal, a decyl peroxide, a peroxy ester, a peroxydicarboxylate, etc.), a Lewis acid. (boron trifluoride, zinc chloride, chlorine Aluminum, ferric chloride, tin chloride, etc.), azo compounds (azobisisobutyronitrile, 1,1'-azobis(cyclohexanecarbonitrile), etc.), acids (organic acids or heating at low temperatures) An acid compound such as an acid generator which generates an acid sulfonium salt, a base (a polyamine such as an aliphatic polyamine, an imidazole, a hydrazide, or a ketimine), and a compound which generates an amine compound by heating at a low temperature. Etc.), polyamine resin, polythiol, and platinum group metal compound or complex thereof (platinum chloride (IV), chloroplatinic acid hexahydrate, bis(alkynyl) bis(triphenylphosphine) ) platinum complexes, etc.). The compound (b) described later can be used as the compound (a) depending on the kind, reactivity, and temperature of the energy ray-curable liquid resin composition.

(a) Since the compound is mixed with the energy ray-curable liquid resin composition at a low temperature in the absence of an energy ray, it can be cured, and therefore it cannot be mixed with the energy ray-curable liquid resin composition to be liquefied.

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

The above compound (b) is exemplified by an organic peroxide (for example, a ketone peroxide, a peroxyketal, a hydrogen peroxide, a dialkyl peroxide, a decyl peroxide, a peroxy ester, etc.), Polyamine, azo compound (azobisisobutyronitrile, 1,1'-azobis(cyclohexanecarbonitrile), etc.), acid anhydride (phthalic anhydride, trimellitic anhydride, pyromellitic anhydride, etc.), aromatic Amines, hydrazines, amine adducts, dicyandiamide, polysulfide resins, and the like. The compound (a) described above can be used as the compound (b) depending on the kind, reactivity, and temperature of the energy ray-curable liquid resin composition.

The shading ink composition contains the compound (b) as a hard energy line When the compound of the modified heterogeneous resin composition is hardened, the energy ray-curable liquid resin must contain the compound (c).

The compound (b) preferably contains 0.01 to 80% by weight, more preferably 0.1 to 50% by weight, most preferably 1 to 30% by weight, based on the ink composition for light-shielding.

The above compound (c) is exemplified by a metal or a complex thereof, an amine, a tertiary amine, a boronic acid ester, a Lewis acid, an imidazole or the like.

As the metal, for example, iron (Fe), aluminum (Al), cobalt (Co), manganese (Mn), tin (Sn), zinc (Zn), vanadium (V), chromium (Cr), zirconium (Zr), Indium (In), titanium (Ti), metal complexes are exemplified by, for example, etidinylacetone, ethyl decyl acetate, carboxylic acid, alkoxide, amine compound, guanamine compound, hydroxymate acid, ketone compound, sub A complex of a compound such as an amine compound or a thiol compound and the above metal, specifically, a vanadium oxyethenylacetone which is a complex of acetylacetone and vanadium (manufactured by Nippon Kasei Co., Ltd.: NAHSE VANADYL ), vanadium oxide triisobutylene oxide of vanadium alkoxide (manufactured by Nichia Corporation), and the like.

When the light-shielding ink composition contains the compound (c) as a compound which can harden the energy ray-curable liquid resin composition, the energy ray-curable liquid resin product must contain the compound (b).

The compound (c) preferably contains 0.01 to 80% by weight, more preferably 0.1 to 50% by weight, most preferably 1 to 30% by weight, based on the ink composition for light-shielding.

The compound which hardens the energy ray-curable liquid resin composition can be appropriately selected depending on the components of the energy ray-curable resin composition. The compound which hardens the energy ray-curable liquid resin composition is as follows, for example, when the energy ray-curable resin composition is an acrylic resin or an epoxy resin.

When an acrylic energy ray-curable resin composition is used, (A) a photopolymerization initiator is added to the energy ray-curable resin composition, and the light-shielding ink composition preferably contains an organic peroxide or an even The nitrogen compound is a compound (a) which is a compound which hardens the energy ray-curable liquid resin composition; or (B) is an energy ray-curable resin composition, which is contained in (b) in addition to the photopolymerization initiator. The organic peroxide of the compound or the azo compound, the ink composition for light-shielding preferably contains the metal or the complex compound as described above, or the amine as described above as the energy ray-curable liquid resin. (c) a compound of the compound hardened; or (C) an energy ray-curable resin composition containing, in addition to the photopolymerization initiator, the aforementioned metal or a complex of the compound (c), In the light-shielding ink composition, the organic peroxide or the azo compound is preferably a compound (b) which is a compound which liquefies the energy ray-curable liquid resin composition.

When an epoxy-based energy ray-curable resin composition is used, (A) a photopolymerization initiator is added to the energy ray-curable resin composition, and it is preferred that the light-shielding ink composition contains the acid or base, especially The acid is an organic acid or an acid generator which generates an acid under low temperature heating, and the base is an amine compound such as a polyamine, an imidazole or a hydrazine, and a compound which generates an amine compound by heating at a low temperature as an energy ray-curable liquid. a compound (a) in which the resin composition is cured; or (B) an energy ray-curable resin composition containing the polyamine as the compound (b) in addition to the photopolymerization initiator, and a light-shielding ink. The composition preferably contains the above-mentioned tertiary amine as the compound (c) which can harden the energy ray-curable liquid resin composition; or (C) in the energy ray-curable resin composition, in addition to light In addition to the polymerization initiator, the tertiary amine is contained as the compound (c), and the light-shielding ink composition preferably contains the polyamine as the compound which hardens the energy ray-curable liquid resin composition (b). Compound.

<Fitting set>

The present invention is a bonding kit comprising the above-described energy ray-curable liquid resin composition and the optical component of the light-shielding ink composition. The kit may be in the form of an energy ray-curable liquid resin composition separately contained in a different container and the above-described light-shielding ink composition.

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

<Method of Manufacturing Optical Parts>

The present invention relates to a method for producing an optical component, which comprises a protective panel and a display body having a light-shielding ink layer formed of a light-shielding ink composition containing a compound capable of curing an energy ray-curable liquid resin composition, or a protective panel and a touch panel having a light-shielding ink layer formed of a light-shielding ink composition containing a compound capable of hardening an energy ray-curable liquid resin composition, or a liquid resin capable of containing an energy ray-curable type The touch panel and the display body of the light-shielding ink layer formed by the light-shielding ink composition of the compound which is hardened by the composition, so that the surface of the light-shielding ink layer is inside, and the energy ray-curable liquid resin composition is interposed The optical component manufacturing method includes the steps of: (1) disposing the light-shielding ink composition on one surface of a protective panel or a touch panel to form a light-shielding ink layer, and (2) protecting the panel. One side of the light-shielding ink layer and/or one side of the display body, or one side of the protective panel having a light-shielding ink layer and/or one of the touch panels The step of applying an energy ray-curable liquid resin composition on the surface of the touch panel having the light-shielding ink layer and/or one side of the display body, and (3) protecting the panel or the touch panel with the light-shielding ink The surface of the layer is disposed on the inner side between the protective panel and the display body, or between the protective panel and the touch panel, or between the touch panel and the display body to block the energy ray-curable liquid The protective panel and the display body or the protective surface are bonded to the state of the resin composition The step of the board and the touch panel, or the step of the touch panel and the display body, and (4) between the protection panel and the display body, or between the protection panel and the touch panel Or the energy ray-curable liquid resin composition between the touch panel and the display body, irradiating an energy ray from a surface direction of the light-shielding ink layer, and comprising the light-shielding ink layer and the energy ray-curable resin The step of hardening the aforementioned energy ray-curable liquid resin composition.

In the above step (1), the light-shielding ink composition containing a compound capable of curing the energy ray-curable liquid resin composition is placed on one surface of the protective panel by, for example, printing, and then the solvent is volatilized by, for example, heating. Or a step of polymerizing 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, preferably 1 μmt to 50 μmt.

In the above step (2), in the case of protecting the panel and the display body, the energy ray-curable liquid resin composition is applied to the surface of the protective panel having the light-shielding ink layer, or energy is applied to one side of the display body. The wire-curable liquid resin composition or the step of coating the energy ray-curable liquid resin composition on both the surface of the protective panel having the light-shielding ink layer and one surface of the display. The same applies to the case of the protection 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 above step (3), the protective panel and the display body, or the protective panel and the touch panel, or the touch panel and the display body are interposed with the energy ray-curable resin so that the surface having the light-shielding ink layer is inside. Composition In the step of bonding, the light-shielding ink layer disposed on the protective panel or the touch panel is brought into contact with the energy ray-curable resin composition.

The step (4) is performed by interposing between the protective panel and the display body, or between the protective panel and the touch panel, or between the touch panel and the display body. a liquid resin composition that irradiates an energy ray from a surface of the protective panel or the touch panel having the light-shielding ink layer, and hardens the energy ray-curable liquid resin composition of the exposed portion, and causes the light-shielding ink layer The energy ray-curable liquid resin composition of the light-shielding portion is brought into contact with the energy ray-curable resin composition by a compound which hardens the energy ray-curable liquid resin composition contained in the light-shielding ink layer. The step of hardening. The hardening temperature in this step may be based on the energy ray-curable liquid resin composition contained in the light-shielding liquid resin composition contained in the light-shielding ink layer and the energy ray-curable liquid resin composition as the case may be. The type of the compound in which the hardening type liquid resin composition is hardened is appropriately set. The hardening temperature is room temperature or normal temperature, or low temperature (for example, 40 ° C to 80 ° C).

Figure 2 shows a preferred embodiment of the invention. As shown in FIG. 2, for example, when the protective panel or the touch panel 1 is bonded to the display body (panel) or the touch panel 4, the light-shielding ink layer 20 formed by the light-shielding ink composition of the present invention and the energy line are used. In the case of the curable resin composition 30, the hardened portion 5 of the energy ray-curable resin composition 30 is formed in a portion through which the light from the light source 10 passes. Next, as shown in FIG. 2, in a preferred embodiment of the present invention, the energy ray-curable resin composition 30 can be used even if the light-shielding ink layer 20 of the protective panel causes the light to be blocked. By the contact with the light-shielding ink layer 20, the hardening reaction of the contact portion 40 of the energy ray-curable resin composition is started, and the hardened portion 5 which is sufficiently hardened is formed.

The present invention relates to an optical component for bonding a protective panel and a display body manufactured by the above method, or an optical component for bonding a protective panel and a touch panel, or an optical component for bonding the touch panel and the display body.

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

[Examples]

The invention is illustrated by the following examples.

Examples 1 to 3 and Comparative Example 1 <Shading ink composition>

The ink composition having the composition (parts by weight) shown in Table 1 was prepared in a usual manner. NAHSE VANADYL (vanadium oxetylacetone) and vanadium oxide triisobutylene oxide are compounds (c) which harden the energy ray-curable liquid resin composition.

<Energy ray-curable resin composition A (resin for bonding)>

The energy ray-curable resin composition A having the composition (parts by weight) shown in Table 2 was prepared by a usual method. I-184 and Lucirin TPO are photopolymerization initiators, and Kayacumene H is a compound (b) which hardens the energy ray-curable liquid resin composition.

Test case

The ink compositions prepared in Examples 1 to 3 and Comparative Example 1 were printed and applied on the outer periphery of a glass substrate (50 × 40 × 0.7 mm) at a thickness of 100 μm, and dried in an oven at 150 ° C for 60 minutes. It becomes a glass substrate with a light-shielding ink layer.

The glass line with the light-shielding ink layer and the glass (45×35×0.7 mm) were bonded to the glass line (45×35×0.7 mm) with a thickness of 200 μm so that the light-shielding ink layer was inside. The substrate side is irradiated with UV to harden it.

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

[Industrial availability]

According to the present invention, the energy ray-curable resin composition which may be caused by the light-shielding ink of the protective panel and the display body touch panel, or the portion of the light-shielding ink of the touch panel and the display body that does not reach the light may be It can be sufficiently hardened at low temperatures, so it can be used to bond the energy ray-curable resin composition to the protective panel and the display body or touch panel, or the touch panel and display body. Manufacturing of optical parts, etc.

1‧‧‧Protective panel or touch panel

2‧‧‧Shading ink layer formed from the conventional shading ink composition

3‧‧‧ Previous energy line hardening resin composition

4‧‧‧Display panel or touch panel

5‧‧‧ Hardened part of energy line hardening resin composition

6‧‧‧Unhardened part of energy line hardening resin composition

10‧‧‧Light source

20‧‧‧Light-shielding ink layer formed from the light-shielding ink composition of the present invention

30‧‧‧ Energy line hardening resin composition of the present invention

40‧‧‧Contact portion of the light-shielding ink layer of the present invention and the energy ray-curable resin composition of the present invention

Fig. 1 is a schematic view showing a method of producing an optical component using a conventional light-shielding ink composition and an energy ray-curable liquid resin composition.

Fig. 2 is a schematic view showing an example of a method of producing an optical component using the light-shielding ink composition of the present invention and the energy ray-curable liquid resin composition.

Claims (9)

An energy ray-curable liquid resin composition which is a protective panel and a display body having a light-shielding ink layer formed of a light-shielding ink composition containing a compound capable of curing an energy ray-curable liquid resin composition, or A protective panel having a light-shielding ink layer formed of a light-shielding ink composition containing a compound capable of curing an energy ray-curable liquid resin composition, or a touch panel, or having an energy ray-curable liquid The touch panel and the display body of the light-shielding ink layer formed by the light-shielding ink composition of the compound for curing the resin composition, the energy-curable liquid resin composition is interposed so that the surface of the light-shielding ink layer is inside. The energy ray-curable liquid resin composition used in the manufacture of optical parts is characterized by containing a photopolymerization initiator. An energy ray-curable liquid resin composition according to claim 1, wherein the compound which hardens the energy ray-curable liquid resin composition comprises a group consisting of a compound which generates a radical, a cation or an anion. More than one compound. A light-shielding ink composition which is a protective panel and a display body having a light-shielding ink layer formed of a light-shielding ink composition, or a protective panel and a touch panel having a light-shielding ink layer formed of a light-shielding ink composition Or the touch panel having the light-shielding ink layer formed of the light-shielding ink composition and the display body, and the energy ray-curable liquid resin composition is laminated so that the surface having the light-shielding ink layer is inside. A light-shielding ink composition for a protective panel or a touch panel used in the manufacture of an optical component, characterized in that it contains an energy-curable liquid resin composition hard Compound. The light-shielding ink composition of claim 3, wherein the compound which hardens the energy ray-curable liquid resin composition contains one or more compounds selected from the group consisting of a compound which generates a radical, a cation or an anion. . A bonding kit for an optical component, comprising the energy ray-curable liquid resin composition according to claim 1 or 2, and the light-shielding ink composition according to claim 3 or 4. A method for producing an optical component, comprising: a protective panel having a light-shielding ink layer formed of a light-shielding ink composition containing a compound capable of curing an energy ray-curable liquid resin composition; a protective panel and a touch panel formed of a light-shielding ink layer formed by the light-shielding ink composition of the compound which hardens the energy-curable liquid resin composition, or which has a composition capable of hardening the energy-curable liquid resin The touch panel and the display body of the light-shielding ink layer formed by the light-shielding ink composition of the compound, such that the surface of the light-shielding ink layer is inside, and the optical fiber-curable liquid resin composition is attached to the optical layer. The method for manufacturing a part includes the steps of: (1) disposing the light-shielding ink composition on one surface of a protective panel or a touch panel to form a light-shielding ink layer, and (2) shielding the protective panel from light. At least one side of the ink layer and/or the display body, or at least one of the surface of the protective panel having the light-shielding ink layer and/or the touch panel On the surface or having a light-shielding member and the ink layer of the at least one side / or displaying energy ray curable liquid coating to a touch panel a step of the resin composition, (3) a surface of the protective panel or the touch panel having the light-shielding ink layer as the inner side, between the protective panel and the display body, or between the protective panel and the touch panel, or Between the touch panel and the display body, the protective panel and the display body, or the protective panel and the touch panel, or the protective panel and the touch panel are bonded to each other in a state in which the energy ray-curable liquid resin composition is interposed. The step of the touch panel and the display body, and (4) between the protection panel and the display body, or between the protection panel and the touch panel, or the touch panel and the display The energy ray-curable liquid resin composition between the bodies irradiates the energy ray from the surface direction of the light-shielding ink layer, and the energy ray hardening is performed by bringing the light-shielding ink layer into contact with the energy ray-curable resin composition. The step of hardening the liquid resin composition. The method of producing an optical component according to claim 6, wherein the compound which hardens the energy ray-curable liquid resin composition contains one or more compounds selected from the group consisting of a compound which generates a radical, a cation or an anion. . An optical component manufactured by the method of claim 6 or 7. An optical display device comprising the optical component of item 8 of the patent application.