TWI534589B - Window plate and touch screen panel comprising the same - Google Patents

Description

Window substrate and touch screen panel having the same

The present invention relates to a window substrate and a touch screen panel having the same, and more particularly to a window substrate capable of expressing various stereoscopic feelings and a touch screen panel having the same.

In recent years, the demand for display devices that further improve performance by miniaturization and weight reduction has been rapidly increasing, centering on rapidly developing semiconductor technologies. From the tendency of informationization, electronic displays used to visually convey information appear in various forms. Recently, with the development of portable communication, the development of portable displays is strongly demanded. Such a display device changes from a cathode ray tube method to a liquid crystal display device (LCD), a plasma display panel (PDP), an organic electroluminescence display device (OLED), and the like. . In particular, a liquid crystal display (LCD) has less power consumption than a conventional cathode ray tube method, and can be reduced in size and weight, and does not emit harmful electromagnetic waves. Therefore, attention has been paid to the next generation of state-of-the-art displays, and is now being used in almost all information processing machines that require display devices. In addition, due to the popularity of smart phones, the use of touch screen panels integrated with such display devices and touch sensors has rapidly increased. As shown in FIG. 1 , a mobile phone is used as an example. The outermost cover window substrate is divided into a display portion, and the cover substrate is displayed on the entire surface, which is a portion corresponding to the touch input; and the non-display portion is surrounded. The display portion of this image sensor. A non-display portion light-shielding pattern is formed on the non-display portion, and has a function of concealing an opaque conductive wiring pattern and various circuits, and a trademark or logo of a mobile phone manufacturer is required to be printed. Conventionally, in general, the main purpose of the non-display portion is to conceal wiring and circuits, so that it is formed by a simple hue layer. Korean Patent Publication No. 2013-56598 discloses the use of a thermosetting black ink composition for photogravure, offset printing, screen printing, reverse offset. A technique of forming a bezel pattern of a touch panel in an equal manner. However, any of the above-described printing methods disclosed in Korean Patent Laid-Open Publication No. 2013-56598 requires relatively large equipment, and thus is not suitable for printing a small-area pattern. [Prior Art Document] [Patent Document] [Patent Document 1] Korean Patent Publication No. 2013-56598

[Problem to be Solved by the Invention] An object of the present invention is to provide a window substrate including a non-display portion having a three-dimensional pattern. Further, another object of the present invention is to provide a window substrate which is provided with a non-display portion having excellent pattern visibility. Still another object of the present invention is to provide a method of manufacturing a non-display portion having a three-dimensional pattern. [Means for Solving the Problem] 1. A window substrate for a touch screen panel, comprising: a window substrate; and a non-conductive light-shielding pattern formed on one surface of the window substrate, wherein the non-conductive shading The pattern includes a concave-convex pattern including a pearl pigment, a hue pattern layer covering the concave-convex pattern to form a flat surface, and a light-shielding layer on the upper portion of the hue pattern layer. 2. In the window substrate for a touch panel according to Item 1, the height of the uneven pattern is 2 to 20 μm. 3. In the window substrate for a touch panel according to Item 1, the pearl pigment is contained in an amount of 0.2 to 2% by weight based on the total weight of the pearl pigment layer. 4. The window substrate for a touch panel panel according to Item 1, wherein the pearl pigment has an average particle diameter of 5 to 15 μm. 5. The window substrate for a touch panel according to Item 1, wherein the pearl pigment comprises a high refractive index layer, a core portion of the reflective layer, and the core portion. 6. In the window substrate for a touch panel according to the above item 5, the core of the reflective layer is from mica, sericite, talc, kaolin, vermiculite. At least one selected from the group consisting of smectite clay mineral, platy titanium dioxide, platy cerium oxide, platy alumina, boron nitride, barium sulfate, and platy titanium dioxide/cerium oxide composite oxide . 7. The window substrate for a touch screen panel according to Item 5, wherein the high refractive index layer comprises a group consisting of titanium dioxide, zirconium dioxide, antimony trioxide, zinc sulfide, tin dioxide, and zinc oxide. Choose at least one of them. 8. The window substrate for a touch panel according to item 1, wherein the hue pattern layer is composed of a plurality of colored layers. 9. In the window substrate for a touch panel according to the above item 8, the hue pattern layer formed by the plurality of colored layers is different in hue of each layer. 10. The window substrate for a touch panel panel according to Item 1, wherein the light shielding layer has a black hue. A method for producing a window substrate for a touch screen panel, comprising: applying a photosensitive resin composition for forming a concave-convex pattern containing pearl pigment to a non-display portion on one surface of the substrate, and forming a concave-convex pattern by photolithography; Coating a non-conductive hue pattern forming composition on the window substrate on which the concave-convex pattern is formed, forming a hue pattern layer covering the concave-convex pattern to form a stop surface by photolithography; and coating the hue pattern layer A conductive light-shielding layer-forming composition is formed by a photolithography technique to form a light-shielding layer. In the method of manufacturing a window substrate for a touch panel according to the above aspect, the photosensitive resin composition for forming a concave-convex pattern includes a coloring agent containing a pearl pigment, an alkali-soluble resin, and a photopolymerizable compound. The photopolymerization initiator and the solvent, the pearl pigment is contained in an amount of 0.2 to 2% by weight based on the total weight of the composition based on the solid content. In the method of manufacturing a window substrate for a touch panel according to the above aspect 11, the non-conductive hue pattern forming composition and the non-conductive light-shielding layer forming composition are independent of each other, and include a coloring agent. An alkali-soluble resin, a photopolymerizable compound, a photopolymerization initiator, and a solvent. The method of manufacturing a window substrate for a touch panel according to the above item 11, wherein the hue pattern layer is formed of a plurality of colored layers. 15. The method of manufacturing a window substrate for a touch panel according to Item 11, wherein the light shielding layer is formed of a black hue layer. A touch screen panel comprising the window substrate according to any one of items 1 to 10 above. An image display device comprising the touch screen panel according to item 16 above. [Effect of the Invention] The window substrate of the present invention has a hue pattern and a pearl pigment layer having a concavo-convex structure in the non-display portion. Therefore, it is possible to specifically exhibit a pattern having a three-dimensional appearance and excellent visibility and having various textures. Further, the window substrate manufacturing method of the present invention can produce a pattern of a thin film structure, and can be easily applied to a large-area substrate by forming a concave-convex pattern containing pearl pigment by photolithography.

The present invention relates to a window substrate and a touch screen panel comprising the same, comprising: a window substrate; and a non-conductive light-shielding pattern formed on one surface of the window substrate, wherein the non-conductive light-shielding pattern comprises: a bump The pattern includes a pearl pigment; a hue pattern layer covering the concave-convex pattern to form a flat surface; and a light-shielding layer on the upper portion of the hue pattern layer, thereby providing a non-display portion capable of expressing an excellent three-dimensionality and a visibility pattern, and is more suitable for use in a pattern Large area substrate. In the present invention, the stereoscopic effect refers to the concept of confirming the difference from the shape viewed from the front side and the inclined surface in addition to the three-dimensional structure. The invention will be described in detail below with reference to the drawings. However, the following drawings are attached to the preferred embodiments of the present invention, and together with the foregoing description, the technical idea of the present invention will be more easily understood, and therefore the present invention is not limited to the above description. To limit and resolve the person. <Window Substrate> FIG. 2 is a schematic vertical cross-sectional view showing the window substrate 100 including the non-conductive light-shielding pattern 200 of the present invention. The non-conductive light-shielding pattern 200 of the present invention includes a concave-convex pattern 210, a hue pattern layer 220, and a light-shielding layer 230. The concave-convex pattern 210 includes a pearl pigment and is formed of a concave-convex structure that protrudes on the opposite side surface of the viewing side of the window substrate 100, and the non-conductive light-shielding pattern 200 is formed by forming a texture structure in the non-conductive light-shielding pattern 200. Provides a three-dimensional structure. The glittering pearl pigment is formed in a concave-convex pattern, and the difference in reflectance and refractive index from the hue pattern layer 220 to be described later can significantly improve the three-dimensional effect and the texture effect. The target pattern is formed in a specific form of the concave-convex pattern 210. The height of the concavo-convex pattern 210 is preferably 2 to 20 μm. If it is the above numerical range, it is possible to ensure excellent visibility and engineering at the same time. The pearl pigment contained in the concavo-convex pattern 210 is a multi-ply pearl luster pigment, and collectively refers to a pigment such as pearl color, rainbow color, or metallic color. The pearl pigment used in the present invention is excellent not only in aesthetics, but also in high reflectance, and also in specific expression properties of three-dimensional feeling and texture. The pearl pigment used in the present invention may further include a high refractive index layer that coats the core portion of the reflective layer and the core portion. The specific material of the reflective core portion and the high refractive index layer can be variously selected depending on the intended hue, reflectance, and the like. As the core of the reflective layer, for example, mica, sericite, talc, kaolin, smectite clay mineral, platy titanium dioxide, platy dioxide矽, plate-like alumina, boron nitride, barium sulfate, and plate-like titanium dioxide/cerium oxide composite oxide, etc., which may be used alone or in combination of two or more. The high refractive index layer may contain titanium oxide, zirconium dioxide, antimony trioxide, zinc sulfide, tin dioxide, zinc oxide, or the like, and these may be used alone or in combination of two or more. The refractive index of the high refractive index layer is preferably 2. 4~3. 0. If it is the said numerical range, it can show the excellent reflectance and the aesthetics of a pearl pigment. The pearl pigment used in the present invention has an average particle diameter of preferably 5 to 15 μm. When a pearl pigment having an average particle diameter in the above numerical range is used, the composition has high storage stability, improves the shielding problem of light for curing, and contributes to formation of a good pattern. When the average particle diameter is less than 5 μm, the visibility (light characteristics or pearly feeling) is lowered. When the average particle diameter is less than 15 μm, the nozzle is blocked when the composition is applied, or the uniformity of the coated surface is lowered, and it is difficult to form. The situation of the pattern. With respect to the total weight of the concave and convex pattern 210, the pearl pigment of the present invention comprises 0. An amount of 2 to 2% by weight. If the content is less than 0. When the amount is 2% by weight, the visibility (light characteristics or pearly feeling) is lowered, and if it exceeds 2% by weight, the workability is lowered. The concavo-convex pattern 210 is correspondingly required, and in addition to the aforementioned pearl pigment, a coloring agent known in the art such as a dye or a pigment may be further included in the scope of the present invention. The hue pattern layer 220 is a layer covering the concavo-convex pattern 210, and when viewed from the viewing side, the reflection and refraction of incident light and the reflection phenomenon of the hue pattern layer 220 due to the texture pattern of the concavo-convex structure specifically exhibiting the concavo-convex pattern 210 have The stereoscopic effect and the texture give the function of the pattern generated by the concave-convex pattern 210. The hue pattern layer 220 is composed of a plurality of colored layers in order to specifically exhibit a desired hue, in which case the layers may have different hue from each other. For example, by forming a plurality of layers having different hue from each other, the hue of the mixed color can also be specifically exhibited. The hue pattern layer 220 is formed of a composition for forming a non-conductive hue pattern capable of performing photolithography, and will be described later. The light-shielding layer 230 can form a flat surface on the hue pattern layer 220, and the subsequent subsequent process can be easily performed to protect the concave-convex pattern 210 covered by the metal wiring or the like and the hue pattern layer 220, and has a specific non-conductive light-shielding pattern. The function of showing the hue of the purpose. Therefore, it may have the same hue as the hue pattern layer 220, or have a different hue. It is preferable to use a black hue layer for the purpose of shielding the metal wiring or the like and the hue effect of the hue pattern layer 220. The thickness of the light shielding layer 230 is preferably from 1 to 10 μm. If the thickness is less than 1 μm, the shielding property is lowered, and when it exceeds 10 μm, the workability is lowered. The window substrate of the present invention having the non-conductive light-shielding pattern as described above can be provided with a non-display portion having a three-dimensional appearance and a pattern having excellent visibility. <Method of Manufacturing Window Substrate> Hereinafter, a method of manufacturing the window substrate of the present invention will be described in more detail. A specific example of the manufacturing method of the present invention is schematically shown in Fig. 3. First, a photosensitive resin composition for forming a concave-convex pattern is applied to a non-display portion on one surface of a window substrate, and a concave-convex pattern is formed by photolithography. The photosensitive resin composition for forming a concave-convex pattern includes: (A) a coloring agent containing a pearl pigment, (B) an alkali-soluble binder resin, (C) a photopolymerizable compound, (D) a photopolymerization initiator, and (E) Solvent. (A) Colorant The colorant may further contain, in addition to the aforementioned pearl pigment, a coloring agent known in the art, such as a dye and a pigment, which are within the scope of the present invention. (B) Alkali-Soluble Binder Resin If the alkali-soluble binder resin is soluble in the solvent of the present invention, it has a function as a binder resin for the colorant described above, and is soluble in the alkaline developer liquid, and the kind thereof is not particularly limited. Can be used. The binder resin is exemplified by, for example, a carboxyl group-containing monomer and a copolymer of another monomer copolymerizable with the monomer. Examples of the carboxyl group-containing monomer include unsaturated carboxyl groups such as an unsaturated monocarboxylic acid, an unsaturated dicarboxylic acid, and an unsaturated tricarboxylic acid, and an unsaturated polyvalent carboxylic acid having one or more carboxyl groups in the molecule. Acid, etc. Examples of the unsaturated monocarboxylic acid include acrylic acid, methacrylic acid, crotonic acid, α-chloroacrylic acid, and cinnamic acid. Examples of the unsaturated dicarboxylic acid include maleic acid, fumaric acid, itaconic acid, citraconic acid, and mesaconic acid. The unsaturated polyvalent carboxylic acid may be an acid anhydride, and specific examples thereof include maleic anhydride, itaconic anhydride, and citraconic anhydride. Further, the unsaturated polyvalent carboxylic acid may be a mono(2-methacryloyloxyalkyl)ester, and examples thereof include succinic acid mono(2-acryloylethyl) and succinic acid mono(2-methyl). Acrylic ethyl), phthalic acid mono(2-acryloylethyl), and phthalic acid mono(2-methacryloylethyl). The above unsaturated polyvalent carboxylic acid may also be a monomethacrylate of a di-terminal polymer of both ends thereof, and examples thereof include ω-carboxypolycaprolactone monoacrylate and ω-carboxypolycaprolactone monomethacrylate. Wait. The carboxyl group-containing monomers may be used alone or in combination of two or more. As other monomers copolymerizable with the aforementioned carboxyl group-containing monomer, for example, styrene, α-methylstyrene, o-vinyltoluene, m-vinyltoluene, p-vinyltoluene, p-chlorobenzene are mentioned. Ethylene, o-methoxystyrene, m-methoxystyrene, p-methoxystyrene, o-vinylbenzyl methyl ether, m-vinylbenzyl methyl ether, p-vinylbenzyl Methyl ether, o-vinylbenzyl glycidyl ether, m-vinylbenzyl glycidyl ether, p-vinylbenzyl glycidyl ether, and an aromatic vinyl compound such as hydrazine; methyl acrylate, methyl methacrylate , ethyl acrylate, ethyl acrylate, n-propyl methacrylate, n-propyl acrylate, isopropyl methacrylate, isopropyl acrylate, n-butyl methacrylate, n-butyl acrylate, isobutyl methacrylate Ester, isobutyl acrylate, sec-butyl methacrylate, sec-butyl acrylate, tert-butyl methacrylate, tert-butyl acrylate, ethyl 2-hydroxyacrylate, 2-hydroxy methacrylate ethyl ester, 2- Hydroxypropyl propyl ester, 2-hydroxy methacrylate propyl ester, 3-hydroxyl Propyl acrylate, 3-hydroxypropyl methacrylate, butyl 2-hydroxyacrylate, butyl 2-hydroxymethacrylate, butyl 3-hydroxyacrylate, butyl 3-hydroxymethacrylate, 4-hydroxyacrylic acid Butyl ester, butyl 4-hydroxymethacrylate, allyl acrylate, allyl methacrylate, benzyl acrylate, benzyl methacrylate, cyclohexyl acrylate, cyclohexyl acrylate, phenyl acrylate, methyl Phenyl acrylate, ethyl 2-methoxyacrylate, ethyl 2-methoxyethyl acrylate, ethyl 2-phenoxy acrylate, ethyl 2-phenoxy methacrylate, methoxy diglycol Acrylate, methoxydiethylene glycol methacrylate, methoxytriethylene glycol acrylate, methoxytriethylene glycol methacrylate, methoxypropylene glycol acrylate, methoxypropylene glycol methyl Acrylate, methoxydipropylene glycol acrylate, methoxydipropylene glycol methacrylate, isobornyl acrylate, isobornyl methacrylate, dicyclopentadienyl acrylate, dicyclopentadienyl methacrylate , 2-hydroxy-3-phenoxy propyl acrylate, 2-hydroxy-3-phenoxy An unsaturated carboxylic acid ester such as propyl methacrylate, monoglyceride or glycerol monomethacrylate; 2-aminoethyl acrylate, 2-aminoethyl methacrylate, 2-dimethylamino group Ethyl acrylate, 2-dimethylaminoethyl methacrylate, 2-aminopropyl acrylate, 2-aminopropyl methacrylate, 2-dimethylaminopropyl acrylate, 2-Dimethylaminopropyl methacrylate, 3-aminopropyl acrylate, 3-aminopropyl methacrylate, 3-dimethylaminopropyl acrylate, 3-dimethyl Aminoalkyl esters of unsaturated carboxylic acids such as propylaminopropyl methacrylate; glycidyl acrylates of unsaturated carboxylic acids such as glycidyl acrylate and glycidyl methacrylate; vinyl acetate, vinyl propionate, Vinyl carboxylic acid esters such as vinyl butyrate and vinyl benzoate; unsaturated ethers such as vinyl methyl ether, vinyl ethyl ether and allyl glycidyl ether; acrylonitrile, methacrylonitrile, α - Acrylonitrile compounds such as chloroacrylonitrile and vinyl cyanide; acrylamide, methacrylamide, α-chloroacrylamide, N-2-hydroxyl Unsaturated amides such as ethyl acrylamide and N-2-hydroxyethyl methacrylamide; unsaturated to maleimide, N-phenylmaleimide, N-cyclohexylmaleimide, etc. An imide; an aliphatic conjugated diene such as 1,3-butadiene, isoprene or chloroprene; and polystyrene, polymethacrylate, polymethyl methacrylate, The poly-n-butyl acrylate, the poly-n-methyl methacrylate, and the polyoxyalkylene have a macromolecular monomer having a monopropenyl fluorenyl group or a monomethacryl fluorenyl group at the terminal of the polymer molecular chain. These monomers may be used alone or in combination of two or more. In the case where the binder resin is a copolymer of a carboxyl group-containing monomer and another monomer copolymerizable with the monomer, the content ratio of the constituent units derived from the carboxyl group-containing monomer is a constitution of the copolymer. The total content of the unit is from 10 to 50% by weight, preferably from 15 to 40% by weight, more preferably from 25 to 40% by weight. When the content ratio of the constituent unit derived from the carboxyl group-containing monomer is from 10 to 50% by weight based on the above criteria, the solubility in the developing solution is good, and the pattern is formed correctly at the time of development, which is preferable. As the binder resin, for example, (meth)acrylic acid/methyl (meth)acrylate copolymer, (meth)acrylic acid/benzyl (meth)acrylate copolymer, (meth)acrylic acid/2- Hydroxyethyl (meth) acrylate / benzyl (meth) acrylate copolymer, (meth) acrylate / methyl (meth) acrylate / polystyrene macromolecular copolymer, (meth) acrylic acid /(Meth)methyl acrylate/poly(methyl) methacrylate macromolecular copolymer, (meth)acrylic acid/benzyl (meth) acrylate/polystyrene macromonomer copolymer, ( Methyl)acrylic acid/benzyl (meth) acrylate/poly(methyl) methacrylate macromolecular copolymer, (meth) acrylate/2-hydroxyethyl (meth) acrylate / benzyl ( Methyl) acrylate/polystyrene macromonomer copolymer, (meth)acrylic acid/2-hydroxyethyl (meth) acrylate / benzyl (meth) acrylate / poly (meth) acrylate Ester macromonomer copolymer, (meth)acrylic acid/styrene/benzyl (methyl) Ether/N-phenylmaleimide copolymer, (meth)acrylic acid/succinic acid mono(2-acryloyloxy)/styrene/benzyl (meth)acrylate/N-phenyl Maleimide copolymer, (meth)acrylic acid/succinic acid mono(2-acryloyloxyethyl)/styrene/allyl (meth)acrylate/N-phenylmaleimide Copolymer, (meth)acrylic acid / benzyl (meth) acrylate / N-phenyl maleimide / styrene / glycerol mono (meth) acrylate copolymer. Among these, (meth)acrylic acid/benzyl (meth) acrylate copolymer, (meth)acrylic acid / benzyl (meth) acrylate / styrene copolymer, (meth) is preferably used. Acrylic/methyl (meth) acrylate copolymer, (meth) acrylate / methyl (meth) acrylate / styrene copolymer. The binder resin is not particularly limited, but the polystyrene-equivalent weight average molecular weight is preferably in the range of 3,000 to 100,000, more preferably in the range of 3,000 to 50,000, particularly 5,000 to 50,000. When the weight average molecular weight of the binder resin is in the range of 3,000 to 100,000, the colorant is preferable because it is easy to disperse, has low viscosity, and is excellent in storage stability. The total amount of the binder resin to the solid content in the composition is from 3 to 80% by weight, preferably from 5 to 70% by weight. When the content of the binder resin is from 3 to 80% by weight based on the above criteria, the colorant is easily dispersed and has excellent storage stability, which is preferable. Photopolymerizable Compound (C) The photopolymerizable compound is a compound which can be polymerized by the action of light and a photopolymerization initiator to be described later, and a monofunctional monomer, a difunctional monomer, or another polyfunctional monomer can be used. Specific examples of the monofunctional monomer include mercaptophenyl carbitol acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-ethylhexyl carbitol acrylate, 2-hydroxyl Ethyl acrylate, N-vinyl pyrrolidone, and the like. Specific examples of the difunctional monomer include 1,6-hexanediol di(meth)acrylate, ethylene glycol di(meth)acrylate, neopentyl glycol di(meth)acrylate, and three. Ethylene glycol di(meth)acrylate, bis(acryloyloxyethyl)ether of bisphenol A, 3-methylpentanediol di(meth)acrylate, and the like. Specific examples of the trifunctional or higher polyfunctional photopolymerizable compound include trimethylolpropane tri(meth)acrylate, ethoxylated trimethylolpropane tri(meth)acrylate, and propoxy group. Trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, ethoxylated dipentaerythritol Methyl) acrylate, propoxylated dipentaerythritol hexa (meth) acrylate, dipentaerythritol hexa (meth) acrylate, and the like. In the photopolymerizable compound exemplified above, a difunctional or higher polyfunctional monomer is preferably used, and a trifunctional or higher (meth) acrylate and an urethane (meth) acrylate are used. It is excellent in polymerizability and strength. The photopolymerizable compound exemplified above may be used alone or in combination of two or more. The photopolymerizable compound may contain 1 to 60% by weight, preferably 5 to 50% by weight, based on the total weight of the solid content in the composition. When the photopolymerizable compound contains the above numerical range, it has a good strength or smoothness of the pixel portion. (D) Photopolymerization initiator The photopolymerization initiator known in the art can be used as the photopolymerization initiator, and is not particularly limited, and can be, for example, a triazine compound, an acetophenone compound, or an imidazole. At least one of the group of the compound and the terpenoid is selected for use. As the aforementioned triazine compound, specifically, 2,4-bis(trichloromethyl)-6-(4-methoxyphenyl)-1,3,5-triazine, 2,4-double (trichloromethyl)-6-(4-methoxynaphthyl)-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-piperidin-1,3,5 -Triazine, 2,4-bis(trichloromethyl)-6-(4-methoxy-styryl)-1,3,5-triazine, 2,4-bis(trichloromethyl) -6-[2-(5-methylfuran-2-yl)vinyl]-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-[2-furan-2 -yl)vinyl]-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-[2-(4-diethylamino-2-methylphenyl)vinyl] -1,3,5-triazine, 2,4-bis(trichloromethyl)-6-[2-(3,4-dimethoxyphenyl)vinyl]-1,3,5-three And so on. As the aforementioned acetophenone compound, specifically, diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethylketal, 2- Hydroxy-1-[4(2-hydroxyethoxy)phenyl]-2-methylpropan-1-one, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1-(4-methyl benzene) Thio)-2-morpholinylpropan-1-one, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butan-1-one, 2-hydroxy- 2-methyl-1-[4-(1-methylvinyl)phenyl]propan-1-one, 2-(4-methylbenzyl)-2-(dimethylamino)-1- (4-morpholinophenyl)butan-1-one and the like. As the above imidazole compound, specifically 2,2-bis(2-chlorophenyl)-4,4',5,5-tetraphenylimidazole, 2,2-bis(2,3-di Chlorophenyl)-4,4',5,5-tetraphenylimidazole, 2,2-bis(2-chlorophenyl)-4,4',5,5-tetra(alkoxyphenyl)imidazole , 2,2-bis(2-chlorophenyl)-4,4',5,5-tetrakis(trialkoxyphenyl)imidazole, 2,2-bis(2,6-dichlorophenyl)- 4,4',5,5-tetraphenyl-1,2'-imidazole or an imidazole compound in which a phenyl group at the 4,4', 5,5 position is substituted with an alkoxycarbonyl group. Among these imidazole compounds, 2,2-bis(2-chlorophenyl)-4,4',5,5-tetraphenylimidazole, 2,2-bis(2,3-dichloro) is preferably used. Phenyl)-4,4',5,5-tetraphenylimidazole, 2,2-bis(2,6-dichlorophenyl)-4,4',5,5-tetraphenyl-1,2 '-Imidazole. Specific examples of the quinone compound include o-ethoxycarbonyl-α-hydroxyimino-1-phenylpropan-1-one. Commercially available products include OXE01 and OXE02 from BASF. Further, other photopolymerization initiators and the like which are generally used in the field can be further used in combination without detracting from the effects of the present invention. Further, the photopolymerization initiator may be used in combination with a photopolymerization initiation aid generally used in the field. Specifically, an amine compound or a carboxylic acid compound is exemplified as an example. Specific examples of the amine compound include aliphatic amine compounds such as triethanolamine, methyldiethanolamine, and triisopropanolamine; methyl 4-dimethylaminobenzoate and 4-dimethylaminobenzene. Ethyl formate, isoamyl 4-dimethylaminobenzoate, 2-ethylhexyl 4-dimethylaminobenzoate, (2-dimethylamino)ethyl benzoate, N, N - dimethyl-p-toluidine, 4,4'-bis(dimethylamino)benzophenone (aka: mazinone), 4,4'-bis(diethylamino)benzol An aromatic amine compound such as a ketone. Preferably, the aforementioned amine compound may also be an aromatic amine compound. Specific examples of the carboxylic acid compound include phenylthioacetic acid, methylphenylthioacetic acid, ethylphenylacetic acid, methylethylphenylthioacetic acid, dimethylphenylthioacetic acid, and methoxy group. Phenylthioacetic acid, dimethoxyphenylthioacetic acid, chlorophenylthioacetic acid, N-phenylglycine, phenoxyacetic acid, naphthylthioacetic acid, N-naphthylglycine, naphthyloxyacetic acid Aromatic isoacetic acid. The photopolymerization initiator has a total weight of the solid content in the composition of 1 to 40% by weight, preferably 3 to 20% by weight. Since the photopolymerization initiator contains the aforementioned content, the sensitivity can be increased to shorten the exposure time and improve the productivity. Solvent (E) The aforementioned solvent is not particularly limited. Ethers, aromatic hydrocarbons, ketones, alcohols, esters or amides can be preferably used. The solvent is specifically ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diglyme, diethylene glycol diethyl ether, diethylene glycol Ethers such as dipropyl ether and diethylene glycol dibutyl ether: aromatic hydrocarbons such as benzene, toluene, xylene, and trimethylbenzene; methyl ethyl ketone, acetone, methyl amyl ketone, methyl isobutyl ketone, Ketones such as cyclohexanone; alcohols such as ethanol, propanol, butanol, hexanol, cyclohexanol, ethylene glycol, glycerol; ethyl 3-ethoxypropionate, methyl 3-methoxypropionate , methyl sialoacetate, ethyl cyproterone acetate, ethyl acetate, butyl acetate, amyl acetate, methyl lactate, ethyl lactate, butyl lactate, butyl 3-methoxyacetate, 3-methyl-3-methoxy-1-butyl acetate, methoxypentyl acetate, ethylene glycol monoacetate, ethylene glycol diacetate, ethylene glycol monomethyl ether Acetate, ethylene glycol monoethyl ether acetate, diethylene glycol monoacetate, diethylene glycol diacetate, diethylene glycol monobutyl ether acetate, propylene glycol monoacetate, propylene glycol diacetate Propylene glycol monomethyl ether acetate, propylene glycol monomethyl ether Esters, stretch ethyl carbonate, propylene carbonate or γ- butyrolactone and the like. Among the solvents exemplified above, in view of coatability and drying property, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, cyclohexanone, ethyl lactate, butyl lactate, and the like are preferable. Ethyl 3-ethoxypropionate, methyl 3-methoxypropionate, and the like. The solvent exemplified above may be used alone or in combination of two or more. The solvent is preferably from 30 to 90% by weight, based on the total weight of the composition, and preferably from 50 to 80% by weight. When the solvent is contained in the above numerical range, the coating property at the time of coating the composition is good, which is preferable. The formation of the uneven pattern 210 by photolithography can be performed by applying a photosensitive resin composition for forming a concave-convex pattern to a non-display portion on one surface of the window substrate 100, and performing an exposure and development process. The coating is applied to a non-display portion on one surface of the window substrate 100 by a composition for forming a non-conductive hue pattern, and is preliminarily dried to remove volatile components such as a solvent to obtain a smooth coating film. The coating method is not particularly limited, and examples thereof include a spray coating method, a roll coating method, a slit nozzle coating method using a discharge nozzle coating method, a spin coating method such as a center dropping method, and an extrusion coating method. Cloth method, bar coating method, etc. The above-mentioned exposure is a coating film obtained as described above, and in order to obtain a target pattern, ultraviolet rays are irradiated to a specific region via a cover. At this time, the parallel light can be uniformly irradiated to the entire exposed portion by means of a cover aligner or a stepping motor, and the correct alignment of the cover and the substrate can be performed. The above-mentioned development is to produce a target pattern by subjecting the coating film which has been hardened as described above to an aqueous alkaline solution which is in contact with the developing liquid. After the development, a baking stage of about 10 to 60 minutes can be carried out at 150 to 230 ° C as needed. Corresponding needs, a further baking stage can be provided after the baking stage. The concavo-convex pattern 210 can be formed on the window substrate 100 by the above process. Next, a non-conductive hue pattern forming composition is applied onto the window substrate on which the concavo-convex pattern 210 is formed, and the uneven pattern is covered by photolithography to form a hue pattern layer having a flat surface. The composition for forming a non-conductive hue pattern includes a colorant, an alkaline aqueous solution binder resin, a photopolymerizable compound, a photopolymerization initiator, and a solvent. A coloring agent known in the art can be used as the coloring agent, and is not particularly limited. In order to specifically present the hue desired by the user, there are not particularly limited, for example, white, red, green, blue dyes and pigments, yellow, orange, purple, brown dyes and pigments for coloring, and carbon black. Wait. These may be used singly or in combination of two or more. The colorant may further contain a metal powder, a white pigment, a fluorescent pigment, or the like as needed. The pigment can also be an inorganic pigment or an organic pigment. The type of the inorganic pigment is not particularly limited, and examples thereof include barium sulfate, lead sulfate, titanium oxide, chrome yellow, erythr iron oxide, chromium oxide, and carbon black. The type of the organic pigment is not particularly limited, and for example, the following C. I. (Colorimetric Index) The pigments listed are numbered, and these pigments may be used alone or in combination of two or more. White pigments are given, for example, C. I.  Pigment White 4, 5, 6, 6: 1, 7, 18, 18: 1, 19, 20, 22, 25, 26, 27, 28, 32, from the side of reflection efficiency and whiteness, using C. I.  Pigment White 6 and C. I.  Pigment White 22 is preferred. Classified as described above. I.  Pigment White 6's titanium dioxide is very inexpensive and has the advantages of high refractive index and high reflectivity, so it can be used as an effective white colorant. Further, the titanium dioxide preferably has a rutile structure. Titanium dioxide having a rutile structure has excellent whiteness, so it can be preferably used for the light shielding layer of the outermost casing of the display. Yellow pigments are given, for example, C. I.  Pigment Yellow 1, 2, 3, 4, 5, 6, 12, 13, 14, 16, 17, 24, 55, 65, 73, 74, 81, 83, 87, 93, 94, 95, 97, 100, 101, 105, 108, 109, 110, 116, 120, 127, 128, 129, 133, 138, 139, 147, 148, 150, 151, 153, 154, 155, 166, 168, 169, 170, 172, 173, 174, 175, 176, 180, 185, 193, 194, 202, and the like. Orange pigments are given, for example, C. I.  Pigment Orange 1, 2, 5, 13, 16, 17, 19, 22, 24, 34, 36, 38, 39, 43, 46, 48, 61, 62, 64, 65, 67, 69, 73, 77, etc. . As a red pigment, for example, C. I.  Pigment Red 1, 2, 3, 4, 5, 6, 8, 9, 12, 14, 15, 17, 22, 23, 31, 37, 38, 41, 48:1, 48:2, 48:3, 49, 50:1, 52:1, 53, 57:1, 58:4, 60, 63, 64, 68, 81, 88, 90:1, 112, 114, 122, 123, 144, 146, 147, 149, 150, 151, 166, 168, 170, 175, 176, 177, 178, 179, 181, 185, 187, 188, 190, 193, 194, 202, 207, 208, 209, 214, 216, 220, 221, 224, 242, 243, 245, 247, 254, 255, 264, 272, and the like. Purple pigments are given, for example, C. I.  Pigment Violet 1, 2, 3, 5, 19, 23, 29, 31, 32, 37, 39, 50, and the like. Blue pigments are given, for example, C. I.  Pigment Blue 1, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 17, 25, 56, 60, 66, 75, 79, etc. Green pigments are given, for example, C. I.  Pigment Green 2, 7, 8, 13, 36, 54 and so on. Brown pigments are given, for example, C. I.  Pigment Brown 1, 22, 23, 25, 27, etc. Black pigments are given, for example, C. I.  Pigment Black 1, 7, 31, 32, etc. The type of the dye is not particularly limited, and examples thereof include an azo dye, an anthraquinone dye, a phthalocyanine dye, a quinone imine dye, a quinoline dye, a nitro dye, a carbonyl dye, and a methine group. Dyes, etc. The azo dye is not particularly limited, and for example, C. I.  Acid Yellow 11, C. I.  Acid Orange 7, C. I.  Acid Red 37, C. I.  Acid Red 180, C. I.  Acid Blue 29, C. I.  Direct Red 28, C. I.  Direct Red 83, C. I.  Direct Yellow 12, C.  I.  Direct Orange 26, C. I.  Direct Green 28, C. I.  Direct Green 59, C. I.  Reactive Yellow 2, C. I.  Reactive Red 17, C.  I.  Reactive Red 120, C. I.  Reactive Black 5, C. I.  Disperse Orange 5, C. I.  Disperse Red 58, C. I.  Disperse Blue 165, C. I.  Basic Blue 41, C. I.  Basic Red 18, C. I.  Mordant tread 7, C. I.  Mordant Yellow 5, C. I.  Mordant Black 7 and so on. The anthraquinone dye is not particularly limited, and for example, C. I.  Vat Blue 4, C. I.  Acid Blue 40, C. I.  Acid Green 25, C. I.  Reactive Blue 19, C. I.  Reactive Blue 49, C. I.  Disperse Red 60, C. I.  Disperse Blue 56, C. I.  Disperse Blue 60, etc. The phthalocyanine dye is not particularly limited, and for example, C. I.  Vat Blue 5 and so on. The quinone imine dye is not particularly limited, and for example, C. I.  Basic Blue 3, C. I.  Basic Blue 9 and so on. The quinoline dye is not particularly limited, and for example, C. I.  Solvent Yellow 33, C. I.  Acid Yellow 3, C. I.  Disperse Yellow 64 and so on. The nitro dye is not particularly limited, and for example, C. I.  Acid Yellow 1, C. I.  Acid Orange 3, C.  I.  Disperse Yellow 42 and so on. Specific examples of the above-exemplified dyes, pigments, and carbon blacks include Mitsubishi carbon black M1000, Mitsubishi carbon black MA-100, Mitsubishi carbon black #40, Victoria pure blue (42595), and gold amine O (41000). , Cathilon brilliant flavin (basic 13), rose red 6GCP (45160), rose red B (45170), red OK 70:100 (50240), erythroid X (42080), No. 120/Lionol Yellow (21090), Lionol Yellow GRO (21090), Symerer Fast Yellow GRO (21090), Symerer Fast Yellow 8GF (21105), benzidine yellow 4J-564D (21095), Prector yellow L0960 (Pigment Yellow 139), Yellow Pigment E4-GN (Pigment Yellow 150 derivative), SYMULER FAST Red 4015 (12355), LIONOL Red 7B4401 (15850), FASTOGEN Blue JGR-L (74160), LIONOL Blue SM (26150), LIONOL Blue ES (Pigment Blue 15:6, Pigment Blue 1536), LIONOGEN Red GD (Pigment Red 168, Pigment Red 108), Cromophtal Red A2B (Pigment Red 177), Irgaphor Red B-CF (Pigment Red 254), Heliogen Green L 8730 (Pigment Green 7) ), Lionol Green 2YS (Pigment Green 36), and the like. The alkali-soluble binder resin, the photopolymerizable compound, the photopolymerization initiator, and the solvent of the composition for forming a non-conductive hue pattern can be used in the same composition and content as the composition for forming a concave-convex pattern. The description is omitted. After coating and hardening the composition for forming a non-conductive hue pattern, the hue pattern layer 220 can be left only in the target portion of the non-display portion by photolithography. The hue pattern layer may be composed of a plurality of colored layers as needed. By having a plurality of colored layers, more hue can be specifically presented to enhance the shielding effect of the metal wiring. From this side, the hue pattern layer formed by a plurality of colored layers may have different hue of each layer. Correspondingly, the photolithography of the hue pattern layer 220 is performed simultaneously with the photolithography for forming the light shielding layer 230 to be described later, and can be performed in one step. Next, a composition for forming a non-conductive light-shielding layer is applied to the hue pattern layer 220, and the light-shielding layer 230 is formed by photolithography. The light-shielding layer 230 is a composition for forming a non-conductive light-shielding layer in the same field as the composition for forming a non-conductive hue pattern used in the hue pattern layer 220, and can be formed by the same photolithography. As a preferred example, as shown in FIG. 3, the light shielding layer 230 may be formed of a black hue layer for the shielding effect of the metal wiring and the clear hue expression of the lower colored light shielding layer 230. Thus, the non-conductive light-shielding pattern of the present invention formed by vapor deposition and photolithography can specifically exhibit a film structure. The window substrate of the present invention can be combined with a structure commonly used in the art to form a touch screen panel. For example, the sensing pattern may be formed on a window substrate on which the non-conductive pattern is formed, and the metal wiring may be connected to the circuit to form a corresponding region on the non-display portion, and a printed circuit board or the like. , connected to the electrode pattern. The sensing pattern is used to sense the static electricity generated by the human body when the finger touches the display portion of the contact area of the image sensor, and connect the electrical signal. The conductive material for forming the sensing pattern is not particularly limited, and is, for example, indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium tin zinc oxide (IZTO), or cadmium tin oxide ( CTO), PEDOT (poly(3,4-ethylenedioxythiophene)), carbon nanotubes (CNT) and metal wires. These may be used alone or in combination of two or more. The metal used for the metal wire is not particularly limited, and examples thereof include gold (Ag), silver, aluminum, copper, iron, nickel, titanium, ruthenium, chromium, and the like. These may be used alone or in combination of two or more. The metal wiring is used to transmit an electrical signal generated from the sensing pattern via contact of the window substrate display portion to the FPCB, ICChip, or the like. The protective film is used to protect the sensing pattern and the metal wiring from scattering when the window substrate is broken. The material of the protective film is not particularly limited as long as it provides durability and is transparent, and may be, for example, PET (polyethylene terephthalate). As the printed circuit board, various types of printed circuit boards can be used, but for example, a flexible printed circuit board (FPCE) can be used. The touch screen panel of the present invention can be usefully used in combination with a pixel display device such as a liquid crystal display, an OLEC, or an elastic display through an additional process known in the art.

100‧‧‧Window substrate
200‧‧‧ non-conductive shading pattern
210‧‧‧ concave pattern
220‧‧‧ Hue pattern layer
230‧‧‧ shading layer

Figure 1 is a schematic perspective view of a mobile phone using a touch screen panel. Fig. 2 is a schematic vertical cross-sectional view of a window substrate having a non-conductive light-shielding pattern according to the present invention. Fig. 3 is a view schematically showing a specific example of the manufacturing method of the present invention.

100‧‧‧Window substrate

200‧‧‧ non-conductive shading pattern

210‧‧‧ concave pattern

220‧‧‧ Hue pattern layer

230‧‧‧ shading layer

Claims (17)

A window substrate for a touch screen panel, comprising: a window substrate; and a non-conductive light-shielding pattern formed on one surface of the window substrate; wherein the non-conductive light-shielding pattern comprises a concave-convex pattern and comprises a pearl pigment; a hue pattern layer covering the concave-convex pattern to form a flat surface; and a light-shielding layer on the upper portion of the hue pattern layer. The window substrate for a touch panel according to claim 1, wherein the height of the concave-convex pattern is 2 to 20 μm. The window substrate for a touch panel according to claim 1, wherein the pearl pigment comprises 0.2 to 2% by weight based on the total weight of the pearl pigment layer. The window substrate for a touch panel according to claim 1, wherein the pearl pigment has an average particle diameter of 5 to 15 μm. The window substrate for a touch panel according to claim 1, wherein the pearl pigment comprises a high refractive index layer, a core portion of the reflective layer, and the core portion. The window substrate for a touch screen panel according to claim 5, wherein the core of the reflective layer is from mica, sericite, talc, kaolin, vermiculite clay mineral, platy titanium dioxide, and plate shape At least one selected from the group consisting of cerium oxide, platy alumina, boron nitride, barium sulfate, and a plate-like titanium oxide/cerium oxide composite oxide. The window substrate for a touch screen panel according to claim 5, wherein the high refractive index layer comprises a group consisting of titanium dioxide, zirconium dioxide, antimony trioxide, zinc sulfide, tin dioxide, and zinc oxide. At least one of the groups is optional. The window substrate for a touch screen panel according to claim 1, wherein the hue pattern layer is composed of a plurality of colored layers. The window substrate for a touch panel according to claim 8, wherein the hue pattern layers formed by the plurality of colored layers are different in color from each other. The window substrate for a touch screen panel according to claim 1, wherein the light shielding layer has a black hue. A method for producing a window substrate for a touch screen panel includes the steps of: applying a photosensitive resin composition for forming a concave-convex pattern containing pearl pigment to a non-display portion on one surface of the substrate, and forming a concave-convex pattern by photolithography; Coating a non-conductive hue pattern forming composition on the window substrate on which the concave-convex pattern is formed, forming a hue pattern layer covering the concave-convex pattern to form a stop surface by photolithography; and coating non-conductivity on the hue pattern layer A light shielding layer forming composition is used to form a light shielding layer by photolithography. The method for producing a window substrate for a touch panel according to claim 11, wherein the photosensitive resin composition for forming a concave-convex pattern includes a coloring agent containing a pearl pigment, an alkali-soluble resin, and a photopolymerizable compound. The photopolymerization initiator and the solvent, the pearl pigment is contained in an amount of 0.2 to 2% by weight based on the total weight of the composition based on the solid content. The method for producing a window substrate for a touch panel according to claim 11, wherein the non-conductive hue pattern forming composition and the non-conductive light-shielding layer forming composition are independent of each other, and include: coloring A solvent, an alkali-soluble resin, a photopolymerizable compound, a photopolymerization initiator, and a solvent. The method for manufacturing a window substrate for a touch panel according to claim 11, wherein the hue pattern layer is formed of a plurality of colored layers. The method for manufacturing a window substrate for a touch panel according to claim 11, wherein the light shielding layer is formed of a black hue layer. A touch screen panel, comprising the window substrate according to any one of claims 1 to 10. An image display device comprising the touch screen panel according to claim 16 of the patent application.