WO2011065032A1 - 透明導電性積層体およびその製造方法ならびに静電容量式タッチパネル - Google Patents
透明導電性積層体およびその製造方法ならびに静電容量式タッチパネル Download PDFInfo
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- WO2011065032A1 WO2011065032A1 PCT/JP2010/053916 JP2010053916W WO2011065032A1 WO 2011065032 A1 WO2011065032 A1 WO 2011065032A1 JP 2010053916 W JP2010053916 W JP 2010053916W WO 2011065032 A1 WO2011065032 A1 WO 2011065032A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
- B32B7/025—Electric or magnetic properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/28—Multiple coating on one surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/202—Conductive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/16—Capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/208—Touch screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2509/00—Household appliances
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
Definitions
- the present invention relates to a transparent conductive laminate and a method for producing the transparent conductive laminate.
- a transparent touch panel is attached as an input device on the display of various electronic devices.
- the touch panel system include a resistance film type and a capacitance type.
- the capacitance type can be multi-touched and is widely used for mobile devices and the like.
- the capacitive touch panel uses a transparent conductive layer with a pattern.
- a method of forming a pattern on the transparent conductive layer for example, there is a photolithography method in which a pattern is formed using a resist as in Patent Documents 1 to 3.
- a photolithography method in which a pattern is formed using a resist as in Patent Documents 1 to 3.
- an indium compound having a functional group or site that reacts with light and a tin compound having a similar functional group or site are used as the conductive film forming composition, and pattern exposure is performed.
- JP-A-1-197911 Japanese Patent Laid-Open No. 2-109205 JP-A-2-309510 JP-A-9-142848 JP 2008-140130 A Japanese Patent Laid-Open No. 11-286066
- Patent Documents 1 to 3 often require many manufacturing steps.
- a transparent conductive layer is provided on both surfaces of a substrate to form a pattern
- the manufacturing process becomes complicated because steps such as resist coating, exposure, and development are performed on each side.
- an optical adjustment layer is formed in addition to the transparent conductive layer as in Patent Document 6, it is necessary to increase the number of manufacturing processes, which further complicates the manufacturing process. become.
- a method such as Patent Document 4 or 5 can use a resist without using a resist and can shorten the manufacturing process.
- a transparent conductive layer is provided on both sides of a substrate to form a pattern.
- the same pattern can be formed on both surfaces of the substrate by laser light, but there is a problem in that it cannot be applied when different patterns are formed on both surfaces of the substrate.
- the present invention has been made in view of the problems of the prior art, and the object thereof is to form different shapes on both sides of a substrate in a short manufacturing process even if a method of forming a pattern on a transparent conductive layer using a resist is used.
- a transparent conductive laminate that can form a pattern simultaneously, is easy to align even if the pattern formed on both sides of the substrate is fine, and is advantageous in making the pattern shape inconspicuous, and It is in providing the manufacturing method and a capacitive touch panel.
- the invention according to claim 1 includes at least a transparent substrate layer, and a first transparent conductive layer and a second transparent conductive layer formed on both surfaces of the transparent substrate layer.
- a transparent conductive laminate is a transparent conductive laminate.
- the invention according to claim 2 is characterized in that the transparent substrate layer is a layer that absorbs light, and the transparent substrate layer contains an ultraviolet absorber or a resin having an ultraviolet absorbing function. It is a transparent conductive laminated body of description.
- the invention according to claim 3 is a resin layer formed between the transparent substrate layer and the first transparent conductive layer and / or between the transparent substrate layer and the second transparent conductive layer.
- the transparent substrate layer includes a first transparent substrate layer in which the first transparent conductive layer is formed on one surface, and the second transparent conductive layer on one surface.
- a second transparent substrate layer formed with a layer, and an adhesive layer formed between the other surface of the first transparent substrate layer and the other surface of the second transparent substrate layer, 2.
- the invention according to claim 5 has an optical adjustment layer between the transparent substrate layer and the first transparent conductive layer and / or between the transparent substrate layer and the second transparent conductive layer. It is a transparent conductive laminated body of Claim 1 characterized by the above-mentioned.
- the invention according to claim 6 is characterized in that the light transmittance at a wavelength of 400 nm is 60% or more and the light transmittance at a wavelength of 365 nm is 20% or less. Is a conductive laminate.
- the difference in total light transmittance between the conductive pattern region and the non-conductive pattern region is 1.5% or less, and the transmitted hue b * difference is 2.0. It is the following, It is the transparent conductive laminated body of Claim 6 characterized by the above-mentioned.
- the invention according to claim 8 is the transparent conductive laminate according to claim 7, wherein the heat shrinkage rate at 30 ° C. for 30 minutes is 0.5% or less.
- the invention according to claim 9 is a capacitive touch panel using the transparent conductive laminate according to claim 8 as an electrode material.
- the invention according to claim 10 is the step of forming at least the first transparent conductive layer and the second transparent conductive layer on both surfaces of the transparent substrate layer, and the first transparent conductive layer and the second transparent conductive layer. Applying a resist to the surface of the conductive layer, a light source for forming a pattern on the first transparent conductive layer, an optical filter and mask for cutting light, and forming a pattern on the second transparent conductive layer And a light filter for cutting light and an optical filter and a mask arranged in order from the light source side, and applied to the surface of the first transparent conductive layer and the resist applied to the surface of the first transparent conductive layer Exposing the resist simultaneously, developing the exposed resist, etching the first transparent conductive layer and the second transparent conductive layer not covered with the resist, And a step of peeling the resist, wherein at least one layer formed between the first transparent conductive layer and the second transparent conductive layer is a layer that absorbs light. It is a manufacturing method of an electroconductive laminate.
- the invention according to claim 11 is characterized in that the transparent substrate layer is a layer that absorbs light, and the transparent substrate layer contains an ultraviolet absorber or a resin having an ultraviolet absorbing function. It is a manufacturing method of the transparent conductive laminated body of description.
- the invention according to claim 12 is the method for producing a transparent conductive laminate according to claim 11, wherein the optical filter has a light transmittance of 80% or more at a wavelength of 365 nm.
- the invention according to claim 13 is characterized in that a process from the step of forming the transparent conductive layer on the transparent substrate layer to the step of peeling the resist is performed by a roll-to-roll method. It is a manufacturing method of a transparent conductive laminated body.
- the invention described in claim 14 is the step of forming a resin layer on both surfaces of the transparent substrate layer, and forming the first transparent conductive layer and the second transparent conductive layer on the surface of the resin layer.
- the invention according to claim 15 is the method for producing a transparent conductive laminate according to claim 14, wherein the optical filter has a light transmittance of 80% or more at a wavelength of 365 nm.
- the invention described in claim 16 is characterized in that the process from the step of forming the transparent conductive layer on the transparent substrate layer to the step of removing the resist is performed by a roll-to-roll method. It is a manufacturing method of a transparent conductive laminated body.
- the invention according to claim 17 is the step of forming at least a first transparent conductive layer on one side of the first transparent substrate layer, and at least the second transparent conductive layer on one side of the second transparent substrate layer.
- the invention according to claim 18 is the layer according to claim 17, wherein the adhesive layer is a layer that absorbs light, and the adhesive layer contains an ultraviolet absorber or a resin having an ultraviolet absorbing function. It is a manufacturing method of a transparent conductive laminated body.
- the invention according to claim 19 is the method for producing a transparent conductive laminate according to claim 18, wherein the optical filter has a light transmittance of 80% or more at a wavelength of 365 nm.
- the transparent substrate layer, the resin layer, or the adhesive layer is a layer that absorbs light, so that different patterns can be simultaneously formed on both sides of the transparent conductive layer formed on both sides of the transparent substrate layer. , The reflection of each other's pattern can be prevented. Further, since patterns having different shapes can be simultaneously formed on both surfaces of the transparent substrate layer, alignment can be easily performed even if the pattern is fine. Furthermore, since a fine pattern can be accurately formed on both surfaces of the transparent substrate layer, the pattern shape can be made inconspicuous by the fine pattern, and as a result, a highly conductive transparent conductive laminate can be obtained. .
- FIG. 1 is an explanatory view of a cross-sectional example 1 of the transparent conductive laminate of the present invention.
- the transparent conductive laminate 11 includes a first transparent conductive layer 3a formed with conductive pattern regions 4a and non-conductive pattern regions 4b provided on both surfaces of the transparent substrate 1, and conductive pattern regions 4a and non-conductive layers. And a second transparent conductive layer 3b in which a pattern region 4b is formed.
- the conductive pattern region refers to a portion having conductivity in the transparent conductive layer
- the non-conductive pattern region is a conductivity excluding a portion having conductivity in the transparent conductive layer. The part that does not have.
- FIG. 2 is an explanatory view of a cross-sectional example 2 of the transparent conductive laminate of the present invention.
- the optical adjustment layers 2a and 2b may be provided.
- an optical adjustment layer may be provided only between either the transparent substrate 1 and the first transparent conductive layer 3a or between the transparent substrate 1 and the second transparent conductive layer 3b. Good.
- FIG. 3 is an explanatory view of a cross-sectional example 3 of the transparent conductive laminate of the present invention.
- the transparent conductive laminate 11 includes a first transparent conductive layer 3a formed with conductive pattern regions 4a and non-conductive pattern regions 4b provided on both surfaces of the transparent substrate 1, and conductive pattern regions 4a and non-conductive layers.
- a resin layer may be provided only between either the transparent substrate 1 and the first transparent conductive layer 3a or between the transparent substrate 1 and the second transparent conductive layer 3b. .
- FIG. 4 is an explanatory view of a cross-sectional example 4 of the transparent conductive laminate of the present invention.
- the optical adjustment layers 2a and 2b may be provided.
- an optical adjustment layer may be provided only between the resin layer 5a and the first transparent conductive layer 3a or between the resin layer 5b and the second transparent conductive layer 3b.
- an optical adjustment layer may be provided between the transparent substrate 1 and the resin layer 5a or between the transparent substrate 1 and the resin layer 5b.
- FIG. 5 is an explanatory view of a cross-sectional example 5 of the transparent conductive laminate of the present invention.
- the transparent conductive laminate 11 includes a first transparent conductive layer 3a having a conductive pattern region 4a and a nonconductive pattern region 4b provided on one side of the first transparent substrate 1a, and a second transparent substrate 1b.
- the second transparent conductive layer 3b formed with the conductive pattern region 4a and the non-conductive pattern region 4b provided on one side of the first, the first transparent conductive layer 3a and the second transparent conductive layer 3b are arranged outside, It is comprised from the adhesion layer 6 provided between the 1st transparent substrate 1a and the 2nd transparent substrate 1b.
- FIG. 6 is an explanatory view of a cross-sectional example 6 of the transparent conductive laminate of the present invention.
- FIG. 6 between the first transparent substrate 1a and the first transparent conductive layer 3a of the transparent conductive laminate 11 shown in FIG. 5, and between the second transparent substrate 1b and the second transparent conductive layer 3b.
- optical adjustment layers 2a and 2b may be provided, respectively.
- An adjustment layer may be provided.
- FIG. 7 is an explanatory view of a cross-sectional example 7 of the transparent conductive laminate of the present invention.
- the transparent conductive laminate 11 includes a resin layer 5a between the first transparent substrate 1a and the first transparent conductive layer 3a and between the second transparent substrate 1b and the second transparent conductive layer 3b, respectively. 5b may be provided. In other embodiments, the resin is provided only between one of the first transparent substrate 1a and the first transparent conductive layer 3a or between the second transparent substrate 1b and the second transparent conductive layer 3b. A layer may be provided.
- FIG. 8 is an explanatory view of a cross-sectional example 8 of the transparent conductive laminate of the present invention.
- the optical adjustment layers 2a and 2b may be provided.
- an optical adjustment layer may be provided only between the resin layer 5a and the first transparent conductive layer 3a or between the resin layer 5b and the second transparent conductive layer 3b.
- an optical adjustment layer may be provided between the first transparent substrate 1a and the resin layer 5a or between the second transparent substrate 1b and the resin layer 5b.
- a plastic film made of resin is used in addition to glass.
- the plastic film is not particularly limited as long as it has sufficient strength in the film-forming process and the post-process and has good surface smoothness.
- polyethylene terephthalate film, polybutylene terephthalate film, polyethylene naphthalate film, polycarbonate Examples include films, polyethersulfone films, polysulfone films, polyarylate films, cyclic polyolefin films, polyimide films, and the like.
- the thickness is about 10 ⁇ m or more and 200 ⁇ m or less in consideration of the thinning of the member and the flexibility of the base material.
- the transparent substrate layers 1, 1a and 1b used in the present invention preferably absorb light.
- the light that has not been absorbed by the resist among the light irradiated from one side of the transparent substrate layer 1 is transparent. This is because it can be absorbed by the substrate layer 1 and light can be prevented from reaching the resist on the other surface side of the transparent substrate layer 1.
- the transparent substrate layers 1a and 1b also absorb light.
- the transparent substrate layers 1, 1a, and 1b preferably absorb light for exposing the resist.
- the light used to expose the resist varies depending on the type of resist or the type of light source, but light of a wavelength in the ultraviolet region (about 200 nm to 360 nm) and a wavelength in the visible region (about 360 nm to 780 nm) are often used.
- the transparent substrate layer 1 preferably absorbs light in these regions. In consideration of practicality, the transparent substrate layer 1 preferably absorbs light in the ultraviolet region.
- Examples of the light absorbing material used to absorb ultraviolet light include an ultraviolet absorber and a resin having an ultraviolet absorbing function, and an ultraviolet absorber is added to the transparent substrate layer or a resin constituting the transparent substrate layer.
- a resin having an ultraviolet absorbing function can be copolymerized.
- UV absorber contained in the transparent substrate layers 1, 1a and 1b examples include benzophenone series, benzotriazole series, benzoate series, salicylate series, triazine series, and cyanoacrylate series.
- benzotriazole-based UV absorbers include 2- (2H-benzotriazol-2-yl) -p-cresol and 2- (2H-benzotriazol-2-yl) -4-6-bis.
- the resin having an ultraviolet absorbing function includes the above-mentioned non-reactive ultraviolet absorbers such as benzophenone, benzotriazole, benzoate, salicylate, triazine, cyanoacrylate, vinyl group, acryloyl group, A functional group having a polymerizable double bond such as a methacryloyl group, an alcoholic hydroxyl group, an amino group, a carboxyl group, an epoxy group, or an isocyanate group is introduced.
- These resins and the resin contained in the transparent substrate layers 1, 1a and 1b can be copolymerized and used as a transparent substrate layer having an ultraviolet absorbing function.
- the light absorbing materials mentioned above may be used not only alone but also in combination.
- unnecessary light can be absorbed in a wide wavelength region by using a plurality of light absorbing materials having different wavelengths of light that can be absorbed.
- the content of the light-absorbing material is not particularly limited as long as light that has not been absorbed by the resist on one surface of the transparent substrate layers 1, 1a, and 1b can be prevented from reaching the resist on the other surface. It is preferable to contain 0.01 weight% or more and 20 weight% or less with respect to resin which comprises 1a and 1b. If it is smaller than the lower limit, it is not preferable because unnecessary light cannot be sufficiently absorbed. Moreover, when exceeding an upper limit, transparency of the transparent substrate layers 1, 1a, and 1b will fall, and it is unpreferable on an external appearance.
- various known additives and stabilizers such as antistatic agents, plasticizers, lubricants, and easy-adhesive agents are used. Also good.
- corona treatment, low temperature plasma treatment, ion bombardment treatment, chemical treatment, etc. may be performed as pretreatment.
- the resin layers 5a and 5b used in the present invention are provided to give the transparent conductive laminate 11 mechanical strength.
- resin used Resin which has transparency, moderate hardness, and mechanical strength is preferable.
- a photocurable resin such as a monomer or a crosslinkable oligomer having a tri- or higher functional acrylate that can be expected to be three-dimensionally crosslinked as a main component is preferable.
- Trifunctional or higher acrylate monomers include trimethylolpropane triacrylate, isocyanuric acid EO-modified triacrylate, pentaerythritol triacrylate, dipentaerythritol triacrylate, dipentaerythritol tetraacrylate, dipentaerythritol pentaacrylate, dipentaerythritol hexaacrylate Ditrimethylolpropane tetraacrylate, pentaerythritol tetraacrylate, polyester acrylate and the like are preferable.
- Particularly preferred are isocyanuric acid EO-modified triacrylates and polyester acrylates. These may be used alone or in combination of two or more.
- so-called acrylic resins such as epoxy acrylate, urethane acrylate, and polyol acrylate can be used in combination.
- acrylic oligomers such as polyester (meth) acrylate, polyether (meth) acrylate, polyurethane (meth) acrylate, epoxy (meth) acrylate, and silicone (meth) acrylate are preferable.
- Specific examples include polyethylene glycol di (meth) acrylate, polypropylene glycol di (meth) acrylate, bisphenol A type epoxy acrylate, polyurethane diacrylate, and cresol novolac type epoxy (meth) acrylate.
- the resin layers 5a and 5b may further contain additives such as particles and a photopolymerization initiator.
- the particles to be added include organic or inorganic particles, but it is preferable to use organic particles in consideration of transparency.
- organic particles include particles made of acrylic resin, polystyrene resin, polyester resin, polyolefin resin, polyamide resin, polycarbonate resin, polyurethane resin, silicone resin, and fluorine resin.
- the average particle diameter of the particles varies depending on the thickness of the resin layers 5a and 5b, but for reasons of appearance such as haze, the lower limit is 2 ⁇ m or more, more preferably 5 ⁇ m or more, and the upper limit is 30 ⁇ m or less, preferably 15 ⁇ m or less. Is used. Further, for the same reason, the particle content is preferably 0.5% by weight or more and 5% by weight or less based on the resin.
- radical generating photopolymerization initiators include benzoin and its alkyl ethers such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and benzyl methyl ketal, acetophenone, 2, 2 , -Dimethoxy-2-phenylacetophenone, 1-hydroxycyclohexyl phenyl ketone, and other acetophenones, methylanthraquinone, 2-ethylanthraquinone, 2-amylanthraquinone and other anthraquinones, thioxanthone, 2,4-diethylthioxanthone, 2, 4 -Thioxanthones such as diisopropylthioxanthone, ketals such as acetophenone dimethyl ketal and benzyl dimethyl ketal, benzophenone, 4, 4-
- tertiary amines such as triethanolamine and methyldiethanolamine
- benzoic acid derivatives such as 2-dimethylaminoethylbenzoic acid, ethyl 4-dimethylaminobenzoate, etc. It can be used in combination with a photoinitiator aid or the like.
- the addition amount of the photopolymerization initiator is 0.1% by weight or more and 5% by weight or less, preferably 0.5% by weight or more and 3% by weight or less with respect to the main component resin. Less than the lower limit is not preferable because the hard coat layer is insufficiently cured. Moreover, when exceeding an upper limit, since yellowing of a hard-coat layer will be produced or a weather resistance will fall, it is unpreferable.
- the light used for curing the photocurable resin is ultraviolet rays, electron beams, or gamma rays, and in the case of electron beams or gamma rays, it is not always necessary to contain a photopolymerization initiator or a photoinitiating aid. As these radiation sources, high pressure mercury lamps, xenon lamps, metal halide lamps, accelerated electrons, and the like can be used.
- the thickness of the resin layers 5a and 5b is not particularly limited, but is preferably in the range of 0.5 ⁇ m to 15 ⁇ m. Further, it is more preferable that the refractive index is the same as or close to that of the transparent substrate layer 11, and it is preferably about 1.45 or more and 1.75 or less.
- the resin layers 5a and 5b are formed by dissolving a resin as a main component in a solvent, a die coater, a curtain flow coater, a roll coater, a reverse roll coater, a gravure coater, a knife coater, a bar coater, a spin coater, and a micro gravure. It is formed by a known coating method such as a coater.
- the solvent is not particularly limited as long as it dissolves the main component resin and the like. Specifically, ethanol, isopropyl alcohol, isobutyl alcohol, benzene, toluene, xylene, acetone, methyl ethyl ketone, methyl isobutyl ketone, ethyl acetate, n-butyl acetate, isoamyl acetate, ethyl lactate, methyl cellosolve, ethyl cellosolve, Examples include butyl cellosolve, methyl cellosolve acetate, and propylene glycol monomethyl ether acetate. These solvents may be used alone or in combination of two or more.
- the resin layers 5a and 5b of the present invention preferably absorb light for exposing the resist, particularly ultraviolet light, for the same reason as the transparent substrate layers 1, 1a and 1b.
- the resin layer that absorbs ultraviolet light include a resin layer containing an ultraviolet absorber and a resin layer containing a resin having an ultraviolet absorbing function.
- Specific examples of the light absorbing material include a transparent substrate layer. Examples thereof include the same materials as those contained in 1, 1a and 1b. Further, the content of the light absorbing material is preferably contained in the same degree as the content in the transparent substrate layers 1, 1a, and 1b.
- the resin layers 5a and 5b may have a function of absorbing light alone, or may have a function of absorbing light together with the transparent substrate layers 1, 1a, and 1b.
- the resin layers 5a and 5b and the transparent substrate layers 1, 1a and 1b have a function of absorbing light, the light which has not been absorbed by the resist on one surface of the transparent substrate layer can be sufficiently absorbed, It is possible to further prevent the pattern on one surface from overlapping the pattern on the other surface.
- both the resin layers 5a and 5b and the transparent substrate layers 1, 1a and 1b have a function of absorbing light, and the light layers which can be absorbed by the resin layers 5a and 5b and the transparent substrate layers 1, 1a and 1b.
- the wavelength may be changed. Thereby, when a light source having a wide wavelength region is used, unnecessary light can be absorbed in a wide wavelength region.
- the adhesive layer 6 of the present invention is a layer for bonding the first transparent substrate 1a and the second transparent substrate 1b.
- the resin used for the adhesive layer 6 include acrylic resins, silicone resins, and rubber resins, and it is preferable to use a resin excellent in cushioning properties and transparency.
- the adhesive layer 6 of the present invention preferably absorbs light for exposing the resist, particularly ultraviolet light, for the same reason as the transparent substrate layers 1, 1a and 1b.
- the resin layer that absorbs ultraviolet light include a resin layer containing an ultraviolet absorber and a resin layer containing a resin having an ultraviolet absorbing function.
- Specific examples of the light absorbing material include a transparent substrate layer. Examples thereof include the same materials as those contained in 1, 1a and 1b. Further, the content of the light absorbing material is preferably contained in the same degree as the content in the transparent substrate layers 1, 1a, and 1b.
- the adhesive layer 6 may have a function of absorbing light by the adhesive layer alone, or may have a function of absorbing light together with the transparent substrate layers 1, 1a and 1b or the resin layers 5a and 5b.
- the light that has not been absorbed by the resist on one surface of the transparent substrate layer can be sufficiently absorbed, It is possible to further prevent the surface pattern from overlapping with the pattern of the other surface.
- the adhesive layer 6, the transparent substrate layers 1, 1a and 1b and the resin layers 5a and 5b all have a function of absorbing light, and the adhesive layer 6, the transparent substrate layers 1, 1a and 1b and the resin layer 5a, You may change the wavelength of the light which 5b can mutually absorb. Thereby, when a light source having a wide wavelength region is used, unnecessary light can be absorbed in a wide wavelength region.
- the optical adjustment layers 2a and 2b have a function of making the patterns formed on the first transparent conductive layer 3a and the second transparent conductive layer 3b inconspicuous, and are layers for improving visibility.
- materials such as oxides, sulfides, fluorides, and nitrides can be used.
- the thin film made of the inorganic compound has a different refractive index depending on the material, and the optical characteristics can be adjusted by forming a thin film having a different refractive index with a specific film thickness.
- the number of optical functional layers may be a plurality of layers depending on the target optical characteristics.
- Low refractive index materials include magnesium oxide (1.6), silicon dioxide (1.5), magnesium fluoride (1.4), calcium fluoride (1.3 to 1.4), cerium fluoride ( 1.6), aluminum fluoride (1.3), and the like.
- titanium oxide (2.4), zirconium oxide (2.4), zinc sulfide (2.3), tantalum oxide (2.1), zinc oxide (2.1) examples include indium oxide (2.0), niobium oxide (2.3), and tantalum oxide (2.2).
- the numerical value in the parenthesis represents the refractive index.
- the first transparent conductive layer 3a and the second transparent conductive layer 3b are made of indium oxide, zinc oxide, tin oxide, or two or three kinds of mixed oxides thereof, and other additives. Examples include materials added, but various materials can be used depending on the purpose and application, and are not particularly limited. At present, the most reliable and proven material is indium tin oxide (ITO).
- ITO indium tin oxide
- the content ratio of tin oxide doped in indium oxide is required for the device.
- the transparent substrate is a plastic film
- the sputtering target material used for crystallizing the thin film for the purpose of increasing the mechanical strength preferably has a tin oxide content of less than 10% by weight.
- the content ratio of tin oxide is preferably 10% by weight or more.
- the content rate of a tin oxide has the preferable range of 3 to 20 weight%.
- any film forming method may be used as long as the film thickness can be controlled.
- the law is excellent.
- a vacuum vapor deposition method, a physical vapor deposition method such as sputtering, or a chemical vapor deposition method such as a CVD method can be used.
- a sputtering method in which the process is stable and the thin film becomes dense is preferable.
- the first transparent conductive layer 3a and the second transparent conductive layer 3b are subjected to X coordinate and Y coordinate patterns as shown in FIG.
- the pattern to be formed includes a conductive pattern region 4a represented in black and a non-conductive pattern region 4b represented in white.
- the conductive pattern region 4a is connected to a circuit capable of detecting a current change. When a human finger or the like approaches the conductive pattern region 4a that is the detection electrode, the entire capacitance changes, so that a current flows through the circuit, and the contact position can be determined.
- the two-dimensional position information can be obtained by providing the patterns shown in FIGS.
- the black pattern in FIG. 11 is the conductive pattern region 4a formed on the front side of the transparent substrate layer, and the gray pattern is the conductive pattern region 4a formed on the back side of the transparent substrate layer. .
- the pattern shape of the first transparent conductive layer 3a and the second transparent conductive layer 3b includes a mesh type pattern in addition to the diamond type pattern as shown in FIG. 9 and FIG. In order to read, it is necessary to form a pattern as fine as possible and to accurately align the patterns provided on both surfaces of the transparent substrate layer.
- a resist is applied on the first transparent conductive layer 3a and the second transparent conductive layer 3b, and the pattern is exposed and developed.
- Examples thereof include a photolithography method in which the transparent conductive layer is chemically dissolved after formation, a method of vaporizing by a chemical reaction in vacuum, a method of sublimating the transparent conductive layer with a laser, and the like.
- the pattern forming method can be appropriately selected depending on the shape and accuracy of the pattern.
- a photolithography method is used in order to simultaneously form different patterns for the first transparent conductive layer 3a and the second transparent conductive layer 3b. Is preferred.
- FIG. 12 shows an exposure process by photolithography of the transparent conductive laminate of the present invention, taking the transparent conductive laminate 11 shown in FIG. 1 as an example.
- the method for forming the conductive pattern region 4a and the non-conductive pattern region 4b formed in the first transparent conductive layer 3a and the second transparent conductive layer 3b of the transparent conductive laminate 11 is as follows. A resist 7a is applied to the surface of the layer 3a, and a resist 7b is applied to the surface of the second transparent conductive layer 3b.
- a light source 8a for forming a pattern on the first transparent conductive layer 3a, an optical filter 9a for cutting off light of a specific wavelength, and a mask 10a are sequentially arranged from the light source 8a side
- the second A light source 8b for forming a pattern on the transparent conductive layer 3b, an optical filter 9b for cutting light of a specific wavelength, and a mask 10b are sequentially arranged from the light source 8b side.
- the resists 7a and 7b are simultaneously exposed with light obtained by cutting light of a specific wavelength by the optical filters 9a and 9b.
- the transparent substrate 1 since the transparent substrate 1 has a function of absorbing light, the transparent substrate layer 1 absorbs light that is not absorbed by the resist 7a, and the resist 7b applied to the surface of the second transparent conductive layer 3b is exposed. Can be prevented. On the contrary, the light that has not been absorbed by the resist 7b can be absorbed by the transparent substrate layer 1 to prevent the resist 7a applied to the surface of the first transparent conductive layer 3a from being exposed.
- the exposure process by the photolithography of the transparent conductive laminated body of this invention can form a pattern simultaneously on both surfaces of the transparent substrate 1, it can align the pattern formed in both surfaces easily.
- the patterns on both sides of the transparent substrate 1 are performed one side at a time, after the pattern is formed on one side, the pattern must be formed on the other side according to the position of the pattern, and the position adjustment is difficult.
- a fine pattern is formed in order to accurately read the two-dimensional position information or to improve the visibility of the pattern, it is not possible to perform alignment with high accuracy by pattern formation on each side.
- the optical filters 9a and 9b are filters for cutting light of a specific wavelength irradiated from the light sources 8a and 8b. Select light for exposing resist on one side of transparent substrate layer by combining with transparent substrate layers 1, 1a and 1b, resin layers 5a, 5b or adhesive layer 6 that absorb light for exposing resist Therefore, the resist on the other surface can be prevented from being exposed.
- the transparent substrate layers 1, 1 a and 1 b, the resin layers 5 a, 5 b or the adhesive layer 6 contain an ultraviolet absorber
- the optical filters 9 a and 9 b block light having a wavelength in the visible region
- one of the transparent substrate layers The resist on the surface is exposed with light having a wavelength in the ultraviolet region.
- the light that is not absorbed by the resist on one side of the transparent substrate layer is absorbed by the ultraviolet absorber contained in the transparent substrate layers 1, 1 a and 1 b, the resin layers 5 a, 5 b or the adhesive layer 6, and on the other side Prevent the resist from being exposed.
- the light transmittance of the optical filters 9a and 9b at a wavelength of 365 nm is preferably 80% or more.
- the resist on one surface of the transparent substrate layer can be exposed with light having a wavelength in the ultraviolet region, and the resist on the other surface can be exposed to prevent pattern reflection.
- the light transmitted through the optical filters 9a and 9b may not be sufficiently sensitized. Therefore, the light transmittance of the optical filters 9a and 9b at a wavelength of 400 nm is adjusted from 0.1% to 30%.
- the resist on one surface can be sufficiently exposed and the resist on the other surface can be exposed to prevent the pattern from being reflected.
- the masks 10a and 10b are masks for forming a pattern on the resists 7a and 7b. Specifically, the masks 10a and 10b are used for forming the pattern shown in FIG.
- the conductive pattern region 4b can be formed.
- FIG. 13 shows each process of manufacturing the transparent conductive laminate 11 of FIG. 1 as an example.
- the transparent substrate 1 is prepared (step (a)), and the first transparent conductive layer 3a and the second transparent conductive layer 3b are formed on both surfaces thereof (step (b)).
- resists 7a and 7b are applied to the surfaces of the first transparent conductive layer 3a and the second transparent conductive layer 3b, respectively (step (c)).
- the resists 7a and 7b are exposed using the light sources 8a and 8b shown in FIG. 12, the optical filters 9a and 9b for cutting light of a specific wavelength, and the masks 10a and 10b (step (d)).
- Reference numeral 7c denotes a resist exposed to light.
- the resist not exposed to light is removed with a developer (step (e)), and the exposed portions of the first transparent conductive layer 3a and the second transparent conductive layer 3b are etched (step (f)). Finally, the exposed resist 7c is peeled off to obtain the transparent conductive laminate 11.
- the transparent conductive laminate 11 of the present invention preferably has a light transmittance of 60% or more at a wavelength of 400 nm and a light transmittance of 20% or less at a wavelength of 365 nm. In this range, different patterns can be simultaneously exposed on both surfaces of the transparent conductive laminate. In addition, since the fine pattern can be formed easily by aligning the patterns on both sides by exposing both sides simultaneously, the transparent conductive laminate 11 of the present invention is used as the electrode material of the capacitive touch panel. Two-dimensional position information can be accurately read with high sensitivity. Further, since a fine pattern can be formed, the pattern shape becomes difficult to see, and the visibility of the pattern is improved.
- Light source Super high pressure mercury lamp (manufactured by USHIO)
- Optical filter cuts wavelengths in the range of 380-600 nm
- Mask diamond pattern shown in FIGS. 9 and 10
Abstract
Description
透明基板として紫外線吸収機能を有するポリエチレンテレフタレートフィルム(東レ社製、厚み:100μm)を用い、透明基板の両面に、下記組成の樹脂層形成用塗液をマイクログラビアコーターで塗布し、60℃で1分間乾燥させ、紫外線により硬化させることで、樹脂層を形成した。
樹脂 : 紫光 UV-7605B(日本合成化学社製) 100重量部
開始剤 : イルガキュア184(チバ・ジャパン社製) 4重量部
溶剤 : 酢酸メチル 100重量部
光源:超高圧水銀ランプ(ウシオ電機社製)
光学フィルター:380-600nmの範囲の波長をカット
マスク:図9及び10に示したダイヤモンド型パターン
透明基板として紫外線吸収機能を有さないポリエチレンテレフタレートフィルム(東レ社製、厚み:100μm)を用い、樹脂層形成用塗液に、トリアジン系紫外線吸収剤(2-〔4-[(2-ヒドロキシ-3-トリデシルオキシプロピル)オキシ]-2-ヒドロキシフェニル〕-4,6-ビス(2,4-ジメチルフェニル)-1,3,5-トリアジン)を0.5重量部含有させた以外は、実施例1と同じ条件及び方法で透明導電層に導電性パターン領域と非導電性パターン領域を形成した。
透明基板として紫外線吸収機能を有さないポリエチレンテレフタレートフィルム(東レ社製、厚み:100μm)を用いた以外は、実施例1と同じ条件及び方法で透明導電層に導電性パターン領域と非導電性パターン領域を形成した。
光線透過率:得られた透明導電性積層体の透過率を、分光光度計(日立ハイテク社製)を用いて波長400nm及び365nmにおける光線透過率について測定した。
外観:得られた透明導電性積層体を目視にて色味評価した。
パターンニング:得られた透明導電性積層体の両面のパターン形状を目視にて確認し、一方のパターン形状が他方のパターン形状に写りこんでいるか否かを評価した。
一方、比較例により得られた透明導電性積層体は、400nm及び365nmにおける光線透過率が、67%及び40%であり、透明導電性積層体の両面の異なるパターンを同時に露光することができないことがわかった。また、外観については、黄色味などの欠陥はなかったが、両面のパターンについては互いのパターンの写りこみが顕著に存在した。
1a…第一の透明基板層
1b…第二の透明基板層
2a、2b…光学調整層
3a…第一の透明導電層
3b…第二の透明導電層
4a…導電性パターン領域
4b…非導電性パターン領域
5a、5b…樹脂層
6…粘着層
7a、7b…レジスト
7c…感光したレジスト
8a、8b…光源
9a、9b…光学フィルター
10a、10b…マスク
11…透明導電性積層体
Claims (19)
- 少なくとも、透明基板層と、
前記透明基板層の両面に形成された第一の透明導電層及び第二の透明導電層と、
前記第一の透明導電層に形成された第一の導電性パターン領域及び第一の非導電性パターン領域と、
前記第二の透明導電層に形成された第二の導電性パターン領域及び第二の非導電性パターン領域と
を備え、
前記第一の透明導電層と前記第二の透明導電層との間に形成された少なくとも1の層が光を吸収する層である
ことを特徴とする透明導電性積層体。 - 前記透明基板層が光を吸収する層であり、前記透明基板層が紫外線吸収剤又は紫外線吸収機能を有する樹脂を含むことを特徴とする請求項1に記載の透明導電性積層体。
- 前記透明基板層と前記第一の透明導電層との間及び/又は前記透明基板層と前記第二の透明導電層との間に形成された樹脂層を備え、前記樹脂層が光を吸収する層であり、前記樹脂層が紫外線吸収剤又は紫外線吸収機能を有する樹脂を含むことを特徴とする請求項1に記載の透明導電性積層体。
- 前記透明基板層が、一方の面に前記第一の透明導電層が形成された第一の透明基板層と、一方の面に前記第二の透明導電層が形成された第二の透明基板層と、前記第一の透明基板層の他方の面と第二の透明基板層の他方の面との間に形成された粘着層とからなり、前記粘着層が光を吸収する層であり、前記粘着層が紫外線吸収剤又は紫外線吸収機能を有する樹脂を含むことを特徴とする請求項1に記載の透明導電性積層体。
- 前記透明基板層と前記第一の透明導電層との間及び/又は前記透明基板層と前記第二の透明導電層との間に光学調整層を有することを特徴とする請求項1に記載の透明導電性積層体。
- 波長400nmにおける光線透過率が60%以上であり、かつ波長365nmにおける光線透過率が20%以下であることを特徴とする請求項5に記載の透明導電性積層体。
- 前記導電性パターン領域と前記非導電性パターン領域との全光線透過率の差が1.5%以下であり、かつ透過色相b*差が2.0以下であることを特徴とする請求項6に記載の透明導電性積層体。
- 150℃30分間における熱収縮率が0.5%以下であることを特徴とする請求項7に記載の透明導電性積層体。
- 請求項8に記載の透明導電性積層体を電極材として用いた静電容量式タッチパネル。
- 透明基板層の両面に少なくとも第一の透明導電層及び第二の透明導電層を形成する工程と、
前記第一の透明導電層及び前記第二の透明導電層の表面にレジストを塗布する工程と、
前記第一の透明導電層にパターンを形成するための光源と光をカットする光学フィルターとマスクと、前記第二の透明導電層にパターンを形成するための光源と光をカットする光学フィルターとマスクとを、それぞれ光源側から順に配置し、前記第一の透明導電層の表面に塗布した前記レジストと前記第二の透明導電層の表面に塗布した前記レジストとを同時に露光する工程と、
感光した前記レジストを現像する工程と、
前記レジストに覆われていない前記第一の透明導電層及び前記第二の透明導電層をエッチングする工程と、
前記レジストを剥離する工程と
を備え、
前記第一の透明導電層と前記第二の透明導電層との間に形成された少なくとも1の層が光を吸収する層である
ことを特徴とする透明導電性積層体の製造方法。 - 前記透明基板層が光を吸収する層であり、前記透明基板層が紫外線吸収剤又は紫外線吸収機能を有する樹脂を含むことを特徴とする請求項10に記載の透明導電性積層体の製造方法。
- 前記光学フィルターの波長365nmにおける光線透過率が80%以上であることを特徴とする請求項11に記載の透明導電性積層体の製造方法。
- 前記透明基板層に前記透明導電層を形成する工程から前記レジストを剥離する工程までをロールトゥロール方式により行うことを特徴とする請求項12に記載の透明導電性積層体の製造方法。
- 前記透明基板層の両面に樹脂層を形成する工程と、前記樹脂層の表面に第一の透明導電層と前記第二の透明導電層とを形成する工程を備え、前記樹脂層が光を吸収する層であり、前記樹脂層が紫外線吸収剤又は紫外線吸収機能を有する樹脂を含むことを特徴とする請求項10に記載の透明導電性積層体の製造方法。
- 前記光学フィルターの波長365nmにおける光線透過率が80%以上であることを特徴とする請求項14に記載の透明導電性積層体の製造方法。
- 前記透明基板層に前記透明導電層を形成する工程から前記レジストを剥離する工程までをロールトゥロール方式により行うことを特徴とする請求項15に記載の透明導電性積層体の製造方法。
- 第一の透明基板層の片面に少なくとも第一の透明導電層を形成する工程と、
第二の透明基板層の片面に少なくとも第二の透明導電層を形成する工程と、
前記第一の透明導電層及び前記第二の透明導電層を外側にして、前記第一の透明基板層と前記第二の透明基板層とを粘着層で貼り合わせる工程と、
前記第一の透明導電層及び前記第二の透明導電層の表面にレジストを塗布する工程と、
前記第一の透明導電層にパターンを形成するための光源と光をカットする光学フィルターとマスクと、前記第二の透明導電層にパターンを形成するための光源と光をカットする光学フィルターとマスクとを、それぞれ光源側から順に配置し、前記第一の透明導電層の表面に塗布した前記レジストと前記第二の透明導電層の表面に塗布した前記レジストとを同時に露光する工程と、
感光した前記レジストを現像する工程と、
前記レジストに覆われていない前記第一の透明導電層及び前記第二の透明導電層をエッチングする工程と、
前記レジストを剥離する工程と
を備え、
前記第一の透明導電層と前記第二の透明導電層との間に形成された少なくとも1の層が光を吸収する層である
ことを特徴とする透明導電性積層体の製造方法。 - 前記粘着層が光を吸収する層であり、前記粘着層が紫外線吸収剤又は紫外線吸収機能を有する樹脂を含むことを特徴とする請求項17に記載の透明導電性積層体の製造方法。
- 前記光学フィルターの波長365nmにおける光線透過率が80%以上であることを特徴とする請求項18に記載の透明導電性積層体の製造方法。
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US13/040,196 US20110151215A1 (en) | 2009-11-27 | 2011-03-03 | Transparent Conductive Laminate, Method For Manufacturing The Same And Capacitance Type Touch Panel |
US13/766,631 US20140048401A1 (en) | 2009-11-27 | 2013-02-13 | Transparent conductive laminate, method for manufacturing the same and capacitance type touch panel |
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PCT/JP2010/053916 WO2011065032A1 (ja) | 2009-11-27 | 2010-03-09 | 透明導電性積層体およびその製造方法ならびに静電容量式タッチパネル |
Country Status (6)
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US (2) | US20110151215A1 (ja) |
JP (1) | JP4683164B1 (ja) |
KR (1) | KR20120117762A (ja) |
CN (1) | CN102639318B (ja) |
TW (1) | TWI514033B (ja) |
WO (1) | WO2011065032A1 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
CN102639318B (zh) | 2014-11-19 |
US20140048401A1 (en) | 2014-02-20 |
JPWO2011065032A1 (ja) | 2013-04-11 |
TWI514033B (zh) | 2015-12-21 |
TW201118463A (en) | 2011-06-01 |
JP4683164B1 (ja) | 2011-05-11 |
KR20120117762A (ko) | 2012-10-24 |
CN102639318A (zh) | 2012-08-15 |
US20110151215A1 (en) | 2011-06-23 |
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