WO2008088059A1 - 透明導電性積層体およびそれよりなるタッチパネル - Google Patents
透明導電性積層体およびそれよりなるタッチパネル Download PDFInfo
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- WO2008088059A1 WO2008088059A1 PCT/JP2008/050662 JP2008050662W WO2008088059A1 WO 2008088059 A1 WO2008088059 A1 WO 2008088059A1 JP 2008050662 W JP2008050662 W JP 2008050662W WO 2008088059 A1 WO2008088059 A1 WO 2008088059A1
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- layer
- transparent conductive
- cured resin
- transparent
- fine particles
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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
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
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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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
- C08J7/0423—Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
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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
- G06F3/0412—Digitisers structurally integrated in a display
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Definitions
- Transparent conductive laminated body and evening panel comprising the same
- the present invention relates to a transparent conductive laminate in which a cured resin layer, a transparent conductive layer 11 and a transparent conductive layer 12 are sequentially laminated on at least one surface of a polymer film.
- a transparent film panel which is often used as a resistive film panel, consists of two transparent electrode substrates on which a transparent conductive layer is formed, with an interval of approximately 10 ⁇ m to l 0 0 xm.
- the transparent conductive layers are arranged so that the transparent conductive layers face each other, and the transparent conductive layer surfaces are in contact with each other only at the portion where the external force is applied. For example, the menu selection on the display screen, Figure 'Character input can be performed.
- Patent Document 1 Patent Document 2, and Patent Document 3 in order to improve the writing durability required for transparent evening panels, the hardness (or Young's modulus) is set between two transparent polymer film substrates.
- a transparent conductive laminate in which transparent polymer film substrates are laminated has been proposed. Both methods are known to improve the writing durability, but because the two transparent polymer films are laminated via an adhesive or transparent resin layer, the production process becomes complicated, resulting in poor production efficiency.
- a large transparent latch panel exceeding 0 inches is manufactured, there is a problem that the transparent conductive laminate is obscured because the rigidity is weak from the viewpoint of configuration.
- Patent Document 4 as a resistive film type solar panel capable of reducing manufacturing cost and mass production, at least one of the transparent electrode layers is a transparent conductive polymer such as a thiophene conductive polymer or a polyaniline conductive polymer.
- An evening panel characterized by being formed is proposed.
- a laminate of an ITO (indium tin oxide) layer and a transparent conductive polymer layer has also been proposed.
- ITO indium tin oxide
- the contact resistance between the transparent conductive layers arranged opposite to each other that make up the transparent latch panel is large, and the transparent trench panel does not operate. There are problems, transmittance and environmental reliability cannot be ensured.
- Patent Document 5 proposes an evening panel in which a polymer layer containing conductive fine particles is formed on the transparent electrode surface of a transparent substrate.
- Patent Document 6 a thin layer of metal and Z or metal oxide formed by vacuum deposition, ion plating, or sputtering is formed as a conductive layer, and then a conductive coating is laminated. It has been proposed.
- the transparent latch panel using the transparent conductive laminate proposed in Patent Documents 4, 5, and 6 does not have a cured resin layer between the transparent conductive layer and the polymer film.
- polyethylene terephthalate used as a movable electrode substrate for transparent transparent panels is used as a polymer film, heat treatment is performed, and then the polymer film is used.
- Patent Document 1 Japanese Patent Laid-Open No. 2-6 6 8 09
- Patent Document 2 Japanese Patent Laid-Open No. 2-1 2 9 8 0 8
- Patent Document 3 Japanese Patent Application Laid-Open No. Hei 8- 1 9 2 4 92
- Patent Document 4 Japanese Unexamined Patent Application Publication No. 2 0 0 5-1 8 2 7 3 7
- Patent Document 5 Japanese Patent Laid-Open No. 7-2 1 9 6 9 7
- Patent Document 6 Japanese Patent Publication No. 3-4 8 6 0 5 Disclosure of Invention
- An object of the present invention is to improve the writing durability which has been conventionally required for a transparent evening panel, and to improve the writing durability (end-pressing durability) in the end region of the transparent evening panel, and the transparent evening panel.
- An object of the present invention is to provide a transparent conductive laminate suitable for use in a touch panel.
- FIG. 1 is a cross-sectional view schematically showing the configuration of a transparent latch panel obtained by the operations of Examples 1 and 7 and Comparative Examples 3 and 4 of the present application.
- FIG. 2 is a cross-sectional view schematically showing the configuration of a transparent latch panel obtained by the operations of Examples 2, 3, 4, 5, 6 and Comparative Examples 5 and 6 of the present application.
- FIG. 3 is a cross-sectional view schematically showing the configuration of the transparent latch panel obtained by the operation of Comparative Example 1 of the present application.
- Figure 4 shows the configuration of the transparent latch panel obtained by the operation of Comparative Example 2 of the present application. It is sectional drawing which showed typically.
- FIG. 5 is a cross-sectional view schematically showing the configuration of a transparent touch panel obtained by the operations of Example 8 and Comparative Example 10 of the present application.
- FIG. 6 is a cross-sectional view schematically showing the configuration of the transparent latch panel obtained by the operation of Comparative Example 12 of the present application.
- the transparent conductive laminate in the present invention is formed by sequentially laminating a cured resin layer, a transparent conductive layer 1-1, and a transparent conductive layer 1-2 on at least one surface of a polymer film.
- the organic polymer constituting the polymer film is not particularly limited as long as it is a transparent organic polymer excellent in heat resistance.
- the organic polymer include polyethylene resins such as polyethylene terephthalate, polyethylene 1,6-naphthalate, and polydiallyl phthalate, polycarbonate resins, polyether sulfone resins, polysulfone resins, polyarylate resins, and acrylic resins. , Cellulose acetate resin, cycloolefin polymer and the like. Of course, these may be used as homopolymers or copolymers. In addition, the above organic polymer may be used alone or blended.
- These polymer films can be produced by general melt extrusion or solution casting. However, it is also preferable to increase the mechanical strength and the optical function by performing uniaxial stretching or biaxial stretching on the polymer film formed as necessary. Is called.
- the transparent conductive laminate of the present invention is used as a movable electrode substrate of a transparent latch panel
- a polymer film is used from the viewpoint of maintaining flexibility and flatness for operating the transparent latch panel as a switch. And a thickness of 75 to 400 xm is preferable.
- the polymer film is preferably a sheet having a thickness of 0.4 to 4., 0 mm from the viewpoint of strength for maintaining flatness, but a thickness of 50 to 400 mm.
- An xm film-like material may be bonded to another plastic sheet so that the total thickness is 0.4 to 4.0 mm.
- the fixed electrode substrate When the transparent conductive laminate of the present invention is used as a movable electrode substrate of a transparent latch panel, the fixed electrode substrate includes the plastic sheet, a glass substrate, a laminate of a polymer film and a glass substrate, or a polymer film and a plastic. You may use what formed the transparent conductive layer on the laminated body with a sheet
- a new type of transparent touch panel in which a polarizing plate or a polarizing plate and a retardation film are laminated on the input side surface of the transparent touch panel, that is, the user side surface.
- the advantage of this configuration is that the reflectance of extraneous light inside the transparent touch panel is reduced to less than half by the optical action of the polarizing plate or the polarizing plate and the retardation film, and the transparent touch panel is installed. It is to improve the contrast of the display.
- the transparent conductive laminate In these types of transparent evening panels, polarized light is applied to the transparent conductive laminate. From passing through, it is preferable to have use those having excellent optical isotropy as a polymer film, specifically, a slow axis direction of the refractive indices n x of the film, the refractive index of the advancing axis direction n
- the in- plane retardance value Re represented by Re (n x — n y ) Xd (nm) when the film thickness is d (nm) is at least 3 Onm or less. Preferably, it is 20 nm or less.
- the in-plane retardation value of the substrate is represented by the value at a wavelength of 590 nm measured using a spectroscopic ellipsometer (M-150 manufactured by JASCO Corporation).
- the in-plane retardation value of the transparent electrode substrate is very important.
- the transparent electrode substrate three-dimensional refractive index characteristics, i.e. K when the refractive index in the thickness direction of the substrate was n z K value represented by ⁇ ( ⁇ ⁇ + ⁇ y) / 2 -n z ⁇ X d is one 250 It is preferably +150 nm, and more preferably in the range of ⁇ 200 to +100 nm in order to obtain a wide viewing angle characteristic of the transparent latch panel.
- Examples of the polymer film having excellent optical isotropy include, for example, polycarbonate, amorphous polyarylate, polyether sulfone, polysulfone, triacetyl cellulose, diacetyl cellulose, cyclohexylene polymer, and modified products thereof.
- Examples include molded substrates such as products or copolymers with different materials, molded substrates of thermosetting resins such as epoxy resins, and molded substrates of ionizing radiation curable resins such as acrylic resins.
- polycarbonate amorphous polyarylate, polyether sulfone, polysulfone, cycloolefin polymer and copolymers with these modified or different materials, etc.
- a molded substrate is most preferable.
- the polycarbonate include bisphenol A, 1,1-di (4-phenol) cyclohexylidene, 3,3,5-trimethyl-1,1,1-di (4-1phenol) cyclohexylidene.
- amorphous polyarylate examples include molded substrates such as “Elmec” manufactured by Kanechi Co., Ltd., “U Bolima” manufactured by Unitika Co., Ltd., “Isaril” manufactured by Isonova.
- cycloolefin polymers examples include molded substrates such as “Zeonor” manufactured by Nippon Zeon Co., Ltd. and “Aton” manufactured by JSR Corporation. '
- Examples of molding methods for these polymer materials include melt extrusion methods, solution casting methods, and injection molding methods. From the viewpoint of obtaining excellent optical isotropy, the solution casting method is particularly preferred. It is preferable to perform molding using the melt extrusion method.
- Transparent conductive layer 1 is particularly preferred. It is preferable to perform molding using the melt extrusion method.
- the transparent conductive layer 11 in the present invention is a crystalline conductive layer containing no organic component.
- a crystalline metal layer or a crystalline metal compound layer is used. Can be mentioned.
- “does not contain an organic component” means that the organic component is not contained in an amount of 0.5% by weight or more.
- the component constituting the transparent conductive layer 1 include silicon oxide and aluminum oxide.
- metal oxide layers such as titanium oxide, magnesium oxide, zinc oxide, indium oxide, and tin oxide. Of these, metal oxide layers of indium oxide and Z or tin oxide are particularly preferred.
- the transparent conductive layer 11 is preferably a crystalline layer containing indium oxide as a main component, and in particular, a layer made of crystalline ITO is preferably used.
- the content of tin oxide in I T O is preferably 2 wt% or more and 20 wt% or less, more preferably 2 wt% or more and 15 wt% or less.
- the crystal grain size does not need to have an upper limit, but is preferably 300 nm or less. If the crystal grain size exceeds 300 nm, the writing durability deteriorates, which is not preferable.
- the crystal grain size is defined as the largest of the diagonal lines or the diameters in the polygonal or oval regions observed under a transmission electron microscope (TEM).
- “mainly composed of indium oxide” means tin oxide, containing tin, tellurium, cadmium, molybdenum, tungsten, fluorine, zinc or the like as a dopant, or silicon, titanium in addition to tin as a dopant.
- “mainly composed of indium oxide” means tin oxide, containing tin, tellurium, cadmium, molybdenum, tungsten, fluorine, zinc or the like as a dopant, or silicon, titanium in addition to tin as a dopant.
- indium oxide containing zinc and the like means indium oxide containing zinc and the like.
- the “crystalline conductive layer” means 50% or more, preferably 75% or more, more preferably 95% or more, particularly preferably about 100% of the layer made of indium oxide containing a dopant. It means that% is occupied by the crystalline phase.
- the transparent conductive layer 1 is a crystalline conductive layer
- the adhesiveness and environmental reliability of the transparent film, the cured resin layer, the metal oxide layer, etc. and the transparent conductive layer 11 are superior to those of other transparent conductive layers, such as amorphous transparent conductive layers.
- the transparent conductive laminate of the present invention is used for an evening panel, the environmental reliability required for the evening panel, the writing durability of the evening panel, and the endurance durability are significantly improved.
- the transparent conductive layer 1 can be formed by a known method, for example, DC magnetron sputtering method, RF magnet sputtering method, ion plating method, vacuum deposition method, pulsed laser.
- the physical formation method Physical Vapor Deposition, hereinafter referred to as PVD
- PVD Physical Vapor Deposition
- CVD chemical vapor deposition
- sol-gel method sol-gel method
- the thickness of the transparent conductive layer 11 is preferably 5 to 50 nm from the viewpoint of transparency and conductivity. More preferably, it is 5-30 nm. If the thickness of the transparent conductive layer 1 is less than 5 nm, the resistance stability over time and environmental reliability tend to be inferior, and this is not preferable. If the thickness of the transparent conductive layer 11 exceeds 5 Onm, the surface resistance value decreases. ⁇ Unpreferable for evening panels. Furthermore, when the thickness of the transparent conductive layer 1 exceeds 30 nm, the transparent conductive layer is 30 nm or less. Since bending properties tend to be deteriorated as compared with the layer, it is difficult to ensure the end pushing durability required for the evening panel, which is not preferable.
- the surface resistance value of the transparent conductive layer 1 is 100 to 100 nm in thickness from 10 to 30 nm due to reduction of power consumption of the transparent touch panel and circuit processing. It is preferable to use a transparent conductive layer exhibiting a range of ⁇ 2000 ( ⁇ / sq), more preferably 140 ⁇ 1000 ⁇ well ( ⁇ / sq). Transparent conductive layer 1 2
- the transparent conductive layer 12 in the present invention contains alkoxysilane and at least one fine particle A composed of conductive metal oxide or metal fine particles having an average primary particle diameter of 100 nm or less.
- the content of the fine particles A in the transparent conductive layer 12 is preferably 0.1 parts by weight or more and 400 parts by weight or less with respect to 100 parts by weight of the alkoxysilane. More preferably, it is 0.5 to 200 parts by weight, and more preferably 0.5 to 100 parts by weight.
- the contact resistance when the surfaces of both transparent conductive layers arranged opposite to each other on the transparent latch panel are in contact with each other is extremely large. It becomes difficult to operate as a transparent evening panel.
- the content of the fine particles A is less than 0.5 parts by weight, it is not preferable because an afterimage remains in the etching step when the transparent conductive layer is patterned using an acid, resulting in poor etching. If the content of fine particles A is more than 400 parts by weight with respect to 100 parts by weight of alkoxysilane, it becomes difficult to secure sufficient layer strength of the transparent conductive layer 12, which is required for transparent sandwich panels. To ensure written durability It becomes difficult to keep. '
- the thickness of the transparent conductive layer 12 is preferably 1 Onm or more and 1550 Onm or less. More preferably, it is not less than 50 nm and not more than 100 nm, more preferably not less than 100 nm and not more than 100 nm.
- the thickness is less than 10 nm, when the transparent conductive laminate of the present invention is used as a transparent conductive layer for an evening panel, it is difficult to obtain an effect of improving end press durability. Further, if the thickness exceeds 1550 Onm, the contact resistance when the transparent conductive layers arranged opposite to each other on the transparent latch panel come into contact with each other becomes remarkably large, and it becomes difficult to operate as a transparent trench panel.
- alkoxysilane used for the transparent conductive layer 12 examples include tetramethoxysilane, tetra-oxysilane, methyltrimethoxysilane, methyltriethoxysilane, dimethyldimethoxysilane, alpha-glycidoxypropyltrimethoxysilane, ⁇ - (3, 4_Epoxycyclohexyl) ethyltrimethoxysilane, vinyltrimethoxysilane, ⁇ — / 3 (aminoethyl) aminopropyltrimethoxysilane, ⁇ — ⁇ (aminoethyl) aminopropyl dimethyl Examples include xylsilane and aminoaminotriethoxysilane.
- alkoxysilanes are preferably used in a mixture of two or more types from the viewpoint of the mechanical strength, adhesion and solvent resistance of the layer, and in particular from the viewpoint of solvent resistance, It is preferable that an alkoxysilane having an amino group in the molecule is contained within a ratio of 0.5 to 40%.
- Alkoxysilanes can be hydrolyzed and dehydrated in advance even if they are used as monomers.
- a suitable oligomer may be used by condensation, it is usually coated on the transparent conductive layer 11 with a coating solution dissolved and diluted in a suitable organic solvent.
- the coating layer formed on the transparent conductive layer-1 is hydrolyzed by moisture in the air and then cross-linked by dehydration condensation.
- an appropriate heat treatment is required to promote crosslinking, and it is preferable to perform a heat treatment at a temperature of 100 ° C or higher for several minutes or longer in the coating process.
- the degree of crosslinking can be further increased by irradiating the coating layer with actinic rays such as ultraviolet rays in parallel with the heat treatment.
- organic solvent examples include ethanol, isopropyl alcohol, butanol, 1-methoxy-2-propanol, hexane, cyclohexane, rigin and the like are preferable.
- polar solvents such as xylene, toluene, cyclohexanone, methyl isobutyl ketone, and isobutyl acetate can also be used. These can be used alone or as a mixed solvent of two or more.
- a method using a known coating machine such as a doctor knife, a barco overnight, a gravure roll coater, a curtain core overnight, a knife core overnight, a spinco overnight, a spray method, a dipping method, etc. Is used.
- the transparent conductive layer 12 can be formed using a combination of radiation curable resin and the like and fine particles A.
- the transparent conductive layer 12 is too thin so that the radiation curable resin becomes insufficiently cured due to oxygen inhibition, and a transparent panel using a transparent conductive laminate using the radiation curable resin.
- sliding durability deteriorates.
- the transparent conductive layer 12 in the present invention requires, as components, alkoxysilane and at least one kind of fine particles A composed of conductive metal oxide or metal fine particles having an average primary particle diameter of 100 nm or less.
- the fine particle A is a metal oxide, for example, indium oxide, tin dioxide, zinc oxide, cadmium oxide, indium cadmium oxide (CdZl n 2 0 4 ), tin cadmium oxide (Cd 2 Sn 0 4 ), zinc oxide zinc (Zn) 2 Sn 0 4 ) and indium oxide.
- a metal oxide for example, indium oxide, tin dioxide, zinc oxide, cadmium oxide, indium cadmium oxide (CdZl n 2 0 4 ), tin cadmium oxide (Cd 2 Sn 0 4 ), zinc oxide zinc (Zn) 2 Sn 0 4 ) and indium oxide.
- indium oxide and metal oxide of tin or tin oxide are particularly preferable.
- metal oxide fine particles of indium oxide and / or tin oxide are used as fine particles A contained in the transparent conductive layer-2, they are superior in environmental reliability compared to other metal oxide fine particles. . Among them, crystalline I T o fine particles are particularly excellent. Further, the tin oxide content in the ITO fine particles is preferably 2 wt% or more and 20 wt% or less, more preferably 2 wt% or more and 15 wt% or less.
- the fine particle A is a metal fine particle
- the metal constituting the metal fine particles is not particularly limited and can be appropriately selected according to the purpose. It may be a metal itself, a metal chalcogenide, a metal halide, or the like.
- the metal include Ti, Fe, Co, Ni, Zr, Mo, Ru, Rh, Ag, Cd, Sn, Ir, Pt, Au, Pb, Bi, and alloys thereof. .
- the alloy is not particularly limited and may be appropriately selected according to the purpose. However, the alloys exemplified above, Sc, Y, Ti, Zr, V, Nb, Fe, Co, Ni, u, Rh, Pd, ⁇ s, Ir, and alloys with elements selected from lanthanide series elements and actinoide series elements.
- the average primary particle size of the fine particles A needs to be 100 nm or less, preferably 75 nm or less, and more preferably 50 nm.
- the transparent conductive layer formed has a problem that the transparency of the transparent latch panel is impaired.
- the transparent conductive layer 12 can contain fine particles B.
- the transparent conductive layer 12 Even if the surface of the transparent conductive layer is not substantially flat, the transparent conductive layer 12 contains fine particles B for the purpose of improving the slipperiness of the surface of the transparent conductive layer. It can also be included.
- the average primary particle diameter of the fine particles B is preferably 1.2 times or more based on the thickness of the transparent conductive layer 12.
- the average primary particle diameter of the fine particles B is less than 1.2 times the thickness of the transparent conductive layer 1-2, it becomes difficult to roughen the surface of the transparent conductive layer 1-2, and both of the two constituting the transparent latch panel are formed. It becomes difficult to prevent the sticking phenomenon between the surfaces of the transparent conductive layers.
- the average primary particle diameter of the fine particles B is preferably 1.5 times or less on the basis of the thickness of the transparent conductive layer 1-2. If the average primary particle diameter of the fine particles B exceeds 1.5 times the thickness of the transparent conductive layer 1-2, the fine particles B are likely to fall out of the transparent conductive layer 1-2, which is required for the evening panel. It becomes difficult to ensure reliability such as sliding durability. Furthermore, when the average primary particle size of the fine particles B exceeds 1.5 times based on the transparent conductive layer 1-2, the appearance (due to flickering) may be impaired when the evening panel and display are combined. Absent.
- the content of the fine particles B in the transparent conductive layer 1-2 is 2.5 parts by weight or less when the total of the alkoxysilane component and the fine particles A forming the transparent conductive layer 1-2 is 100 parts by weight.
- the amount is preferably 1.5 parts by weight or less.
- the fine particle B When the fine particle B is excessively contained in the transparent conductive layer, the fine particle B is more easily removed from the transparent conductive layer, and the adhesion with the transparent conductive layer 1 is reduced, and the writing durability required for the transparent evening panel is required. Reliability may be impaired.
- the fine particles B are particularly fine particles having an average primary particle diameter in the above range.
- organic compounds, organic compounds, metal oxides, metal fine particles and the like can be mentioned.
- the fine particle B is preferably a conductive metal oxide or a metal fine particle.
- the surfaces of the two transparent conductive layers are Deterioration of contact resistance when contacted can also be prevented.
- the average primary particle diameter of the fine particles B is the average primary particle diameter of the fine particles A having an average primary particle diameter of 100 nm or less, which is blended to improve the conductivity of the transparent and bright conductive layers 12. The particle size must also be clearly large.
- the fine particles B are conductive metal oxides
- fine particles of metal oxides such as silicon oxide, aluminum oxide, titanium oxide, magnesium oxide, zinc oxide, indium oxide, and tin oxide.
- metal oxide fine particles of indium oxide and Z or tin oxide are particularly preferable.
- fine particle B is a metal fine particle, for example, Ti, Fe, Co, Ni, Zr, Mo, Ru, Rh, Ag, Cd, Sn, Ir, Pt, Au, Pb, Bi These alloys are preferred.
- Metal oxide layer for example, Ti, Fe, Co, Ni, Zr, Mo, Ru, Rh, Ag, Cd, Sn, Ir, Pt, Au, Pb, Bi These alloys are preferred.
- the transparent conductive laminate of the present invention may further have a metal oxide layer having a thickness of 0.5 nm or more and less than 5.0 nm between the polymer film and the transparent conductive layer 11.
- Adhesion between layers is greatly improved by laminating a polymer film, a metal oxide layer with a controlled thickness, and a transparent conductive layer.
- a transparent trench panel using such a transparent conductive laminate does not have a metal oxide layer.
- the writing durability required for transparent evening panels in recent years is further improved.
- the thickness of the metal oxide layer is 5. O nm or more, the metal oxide layer will begin to exhibit mechanical properties as a continuum, and the end-pressing durability required for the transparent latch panel cannot be expected.
- the thickness is less than 0.5 nm, it is difficult to control the thickness, and it becomes difficult to fully develop the adhesion between the polymer film and the transparent conductive layer 11, which is required for transparent transparent panels. Improvement in writing durability may be insufficient.
- Examples of the component constituting the metal oxide layer include metal oxide layers such as silicon oxide, aluminum oxide, titanium oxide, magnesium oxide, zinc oxide, indium oxide, and tin oxide.
- These metal oxide layers can be formed by a known method.
- the physical formation method physical vapor deposition (hereinafter referred to as PVD)
- PVD physical vapor deposition
- the position method can be used, but industrial productivity of forming a metal oxide layer with a uniform thickness over a large area Focusing on, DC magnetron sputtering is desirable.
- chemical formation methods such as chemical 1 va or deositi on (hereinafter referred to as CVD) or sol-gel method can also be used. From the viewpoint, sputtering is still desirable.
- the target used for sputtering is preferably a metal target, and the reactive sputtering method is widely used. This is because the oxide of the element used as the metal oxide layer is often an insulator, and in the case of a metal compound target, DC magnetron sputtering This is because the law is often not applicable.
- a power source has been developed that simultaneously discharges two cathodes and suppresses the formation of insulators on the sunset, so that a pseudo RF magneto-spreading method can be applied. It has become to.
- the pressure (back pressure) in the vacuum chamber in which the metal oxide layer is formed is once 1.3. and X 10- 4 P a or less, can be formed by then in a manufacturing method of introducing an inert gas and oxygen. It temporarily below 1.
- 3X 10- 4 P a pressure in the vacuum vessel to form a metal oxide layer it remains in a vacuum vessel, and concerns can affect the process of forming the metal oxide layer This is desirable because it can reduce the influence of molecular species.
- Yo Ri Desirably, 5X 10- 5 P a or less, more desirably below 2.X 10- 5 P a.
- the inert gas introduced next for example, He, Ne, Ar, Kr, Xe can be used, and the inert gas with a larger atomic weight causes less damage to the formed metal oxide layer and surface flatness. Is said to improve.
- Ar is preferable.
- this inert gas to adjust the concentration of the oxygen incorporated into the layer it may be added to 1.
- 3X 10- 3 ⁇ 7 X 10- 2 P a stand oxygen in terms of partial pressure.
- O 3 , N 2 , N 2 O, H 2 O, NH 3 and the like can be used according to the purpose.
- the partial pressure of water in the vacuum vessel to form a metal oxide layer and 1. 3 X 10- 4 P a below and then introducing an inert gas and oxygen Can do.
- the partial pressure of water more preferably, 4X 1 0- 5 P a or less, more preferably be controlled below 2 X 10- 5 P a.
- metal In order to relieve stress inside the metal oxide layer by incorporating hydrogen into the oxide layer, water is deliberately in the range of 1.3 X 1 0— 4 to 3 X 10 0— 2 Pa. May be introduced. This adjustment may be performed by introducing water using a variable leak valve or a mass flow controller after a vacuum is once formed. It can also be implemented by controlling the back pressure of the vacuum chamber.
- a differential exhaust type in-process monitor When determining the water pressure in the present invention, a differential exhaust type in-process monitor may be used. Alternatively, a quadrupole mass spectrometer that has a wide dynamic range and can measure even under pressures of the order of 0.1 Pa may be used. Also, in general, 1. In 3 X 1 0- 5 P a vacuum degree of about forms the pressure of its * are is water. Therefore, the value measured by the vacuum gauge may be considered as the moisture pressure as it is.
- the substrate temperature when forming the metal oxide layer cannot be raised above the softening point temperature of the polymer film. Therefore, in order to form the metal acid / lysate layer, the substrate temperature needs to be about room temperature or lower to the softening point temperature or lower.
- the substrate temperature is 50 ° C. or less, and more desirably 20 ° C. or less.
- the substrate temperature is 50 ° C. or less, and more desirably 20 ° C. or less.
- the gas gas from the polymer film substrate it is 80 ° C or less, more desirably 50 ° C or less, and even more desirably 20 ° C or less. It is desirable to form at a substrate temperature set to. Cured resin layer In the transparent conductive laminate of the present invention, it is necessary to provide a cured resin layer between the polymer film and the transparent conductive layer 11 or between the polymer film and the metal oxide layer.
- Examples of the cured resin used for the cured resin layer include ionizing radiation curable resins and thermosetting resins.
- Monomers such as polyol acrylate, polyester acrylate, urethane acrylate, epoxy acrylate, modified styrene acrylate, melamine acrylate, silicon-containing acrylate, etc. Multifunctional acrylate can be listed.
- Specific monomers include, for example, trimethylol propane trimethyl acrylate, trimethylol propane ethylene oxide modified acrylate, trimethylol propane propylene oxide modified acrylate, isocyanuric acid alkylene oxide modified acrylate, pentaerythritol triacrylate.
- Polyfunctional monomers such as epoxy-modified acrylate, urethane-modified acrylate, and epoxy-modified acrylate are listed.
- an appropriate amount of hydrolyzate of various alkoxysilanes may be added.
- an appropriate amount of a known photopolymerization initiator is added. If necessary, an appropriate amount of photosensitizer may be added.
- Photopolymerization initiators include acetophenone, benzophenone, benzoy , Benzoylbenzoic acid, thixanthones and the like, and photosensitizers include triethylamine, tri-n-butyl phosphine and the like.
- Thermosetting resins include organosilane thermosetting resins using silane compounds such as methyltriethoxysilane and phenyltriethoxysilane as monomers, melamine thermosetting resins using etherified methylol melamine, etc. Examples thereof include thermosetting resins, phenolic thermosetting resins, and epoxy thermosetting resins. These thermosetting resins can be used alone or in combination. It is also possible to mix a thermoplastic resin if necessary. In addition, when the resin layer is cross-linked by heat, a known reaction accelerator and an appropriate amount of a curing agent are added. Examples of the reaction accelerator include triethylenediamine, dibutyltin dilaurate, benzylmethylamine, pyridine. Etc.
- curing agent examples include methylhexahydrophthalic anhydride, 4,4′-diaminodiphenylmethane, 4,4′-diamino-3,3′-jetyldiphenylmethane, diaminodiphenylsulfone, and the like.
- the thickness of the cured resin layer is not particularly limited, but is preferably 10 zm or less, more preferably 5 or less from the viewpoints of flexibility and friction resistance.
- silicon oxide fine particles with an average primary particle size of 10 O nm or less in the cured resin layer Can be contained. Further, when an organic compound containing silicon atoms and silicon oxide fine particles having an average primary particle size of 100 nm or less are used in combination, a cured resin layer in which the metal oxide fine particles of the silicon oxide fine particles are prayed on the surface is obtained. Therefore, the effect of improving the adhesion is improved.
- Silicon atom Examples of organic compounds that contain silane are general surfactants containing Si atoms and UV curable resin components.
- the content of the silicon oxide fine particles is preferably 1 part by weight or more and 400 parts by weight or less, more preferably 1 part by weight or more and 200 parts by weight or less, more preferably 5 parts by weight with respect to 100 parts by weight of the cured resin component. Part to 100 parts by weight.
- the reflected light from the movable electrode substrate (upper electrode substrate) and the fixed electrode substrate (lower electrode substrate) of the manufactured transparent latch panel Newton rings due to interference of reflected light from
- the surface of the cured resin layer can be roughened by the method of forming irregularities on the surface of the transparent conductive layer, and the following four methods can be exemplified as a method of roughening the cured resin layer. it can.
- the hardened resin layer does not contain fine particles to roughen the surface, the two components phase-separate to form irregularities, and the arithmetic average roughness of the cured resin layer according to JISB 0601 — 1994
- (Ra) is in the range of 0.05 to 111 m and less than 0.5 m
- the ten-point average roughness (R z) in accordance with JISB 0601-1982 is 0.5 to 2 m.
- the first component is preferably a polymer, and the second component is preferably a monomer.
- the difference in SP value between the first component and the second component forming the cured resin layer is preferably 0.5 or more.
- the first component forming the cured resin layer is preferably an unsaturated double bond-containing acryl copolymer, and the second component is preferably a polyfunctional unsaturated double bond-containing monomer.
- the component forming the cured resin layer is composed of a silicone acrylic block copolymer and It is preferable to be a krill copolymer. '
- the transparent conductive laminate of the present invention when roughened by this method can achieve a haze defined by JISK 7 1 3 6 of 1% or more and less than 20%.
- the cured resin layer contains at least one kind of fine particles C having a larger average primary particle diameter than the cured resin component and the average primary particle diameter or two kinds of fine particles C having different average primary particle diameters, and at least one kind of fine particles C.
- the content of the fine particles C contained in the cured resin layer is 0.1 parts by weight or more and 30 parts by weight or less, preferably 1 part by weight or more and 20 parts by weight or less with respect to 100 parts by weight of the cured resin component. Part or less, more preferably 3 parts by weight or more and 15 parts by weight or less.
- the content of the fine particles C is less than 0.1 parts by weight, the hardened resin layer cannot be sufficiently roughened, so that there is no effect of preventing the occurrence of Newton rings. If the content of fine particles C is more than 30 parts by weight, the haze of the cured resin layer will become extremely large, making it difficult to ensure transparency, and it will be difficult to secure transparency through the transparent latch panel. It is difficult to clearly see the screen on which it is placed.
- the content of the fine particles D contained in the cured resin layer is 0.1 parts by weight or more and 100 parts by weight or less, preferably 0.5 parts by weight or more with respect to 100 parts by weight of the cured resin component. 50 parts by weight or less, more preferably 1 part by weight or more and 30 parts by weight or less.
- the content of fine particles D is 0.1 parts by weight or less, the cured resin Since the layer cannot be sufficiently roughened, there is no effect of preventing the development of Newton rings. If the content of fine particles D is more than 100 parts by weight, it becomes difficult to ensure transparency because the haze of the cured resin layer becomes extremely large, and it is placed under the transparent latch panel via the transparent latch panel. It will be difficult to see the displayed screen clearly. '
- the content of the fine particles C and the content of the fine particles D contained in the cured resin layer are the same as the contents described above.
- the ten-point average roughness (R z) defined by JISB 06 01-1 982 is', preferably 10 O nm or more and less than 150 O nm, more preferably 200 nm or more and less than 1 300 nm, more preferably 350 nm or more and less than 1000 nm.
- the arithmetic average roughness (R a) defined according to JISBO 6 0 1-1 994 is preferably 3 O nm or more and less than 500 nm, more preferably 40 nm or more and 400 nm. More preferably, it is 50 nm or more and less than 300 nm.
- the arithmetic mean roughness (Ra) is less than 30 nm, Newton's rings can easily form between the movable electrode substrate and the fixed electrode substrate of the transparent latch panel.
- the arithmetic average roughness (Ra) is 500 nm or more, the haze increases, and if a transparent touch panel is installed on a high-definition display, pixel color separation occurs and flickering occurs.
- the haze defined by JIS K7105 based on the cured resin layer and polymer film roughened by the methods of (2) to (4) is 1% or more and less than 10%, preferably 1% or more. %, More preferably 1% or more and less than 6%. If the haze is less than 1%, Newton's ring may easily occur between the movable electrode substrate and the fixed electrode substrate of the transparent evening panel. On the other hand, when the haze is 10% or more, information such as images and characters is blurred when a transparent evening panel is installed on the display.
- the method (1) for roughening the surface of the cured resin layer will be specifically described below.
- the two types of components have concaves and convexes formed by phase separation.
- the cured resin layer does not contain fine particles for imparting irregularities.
- the unevenness is caused by the phase difference between the first component and the second component, resulting in random unevenness on the surface. Is formed.
- the cured resin layer can be formed by applying the composition on a substrate to form irregularities and then curing.
- the first component is preferably a polymer
- the second component is preferably a monomer.
- the first component is preferably a curable polymer having excellent transparency, and more preferably a thermosetting polymer or an ionizing radiation curable polymer.
- the polymer a known polymer can be used, and examples thereof include the polymers described in International Publication No. 2 0 0 0/0 7 3 7 63 pamphlet.
- an unsaturated double bond-containing acrylic copolymer (hereinafter sometimes referred to as copolymer (1)) is preferred.
- the copolymer (1) include a resin obtained by polymerizing or copolymerizing a polymerizable unsaturated monomer having an acid group such as (meth) acrylic monomer or a polymerizable unsaturated monomer having this acid group.
- a copolymer obtained by reacting a resin having a copolymerized resin and another monomer having an ethylenically unsaturated double bond with a monomer having an ethylenically unsaturated double bond and an epoxy group examples thereof include a copolymer obtained by reacting a polymerizable unsaturated monomer having an acid group with another monomer having an ethylenically unsaturated double bond and an isocyanate group.
- a polymerizable unsaturated monomer having an acid group is copolymerized with another polymerizable unsaturated monomer, and then obtained.
- a method of reacting an acid group of the copolymer with an epoxy group of an ethylenically unsaturated monomer containing an epoxy group is a method of reacting an acid group of the copolymer with an epoxy group of an ethylenically unsaturated monomer containing an epoxy group.
- Examples of the polymerizable unsaturated monomer having an acid group include acrylic acid, methacrylic acid, crotonic acid, 2- (meth) acryloyloxychetyl succinic acid, 2— (meth) acryloyloxychee.
- Monocarboxylic acids such as tilphthalic acid and 2- (meth) acryloyloxychetilhexahydrofurauric acid
- dicarboxylic acids such as maleic acid, fumaric acid, citraconic acid, mesaconic acid and itaconic acid
- maleic anhydride Acid and acid anhydrides such as itaconic anhydride and monoethyl maleate, monoethyl fumarate And monoesters of dicarboxylic acids, such as monoethyl itaconate, or substituted derivatives thereof substituted by ⁇ -position haloalkyl, alkoxy, halogen, nitro or cyano, ⁇ —, m—, p-vinyl Examples thereof include benzoic acid or substituted derivatives thereof substituted with alkyl, alkoxy, halogen, nitro, cyan, amide or ester. These may be used alone or in combination of two or more.
- polymer unsaturated monomers include, for example, styrene or ⁇ -, ⁇ —, m-, ⁇ -alkyl, alkoxy, halogen, haloalkyl, nitro, cyano, amide, ester substituted derivatives substituted with styrene, butadiene Olefins such as isoprene and neoprene, o-, m-, p-hydroxystyrene or substituted derivatives thereof substituted by alkyl, alkoxy, halogen, octacylalkyl, nitro, cyan, amide, ester or carboxy Vinyl hydroquinone, 5-vinyl pyroganol, 6-pinyl pyrogallol, 1 polyhydroxy vinyl phenols such as mono vinyl phlorogricinol, methyl methacrylate, ethyl acetate, n-propyl, i-propyl, n-butyl, sec-but
- Epoxy-containing ethylenically unsaturated monomers include, for example, glycidyl (meth) acrylate,] 3-methylglycidyl (meth) acrylate, and 3,4-epoxycyclohexanyl (meth) acrylate, 4-hydroxypropyl And relay daricidyl ether.
- Glycidyl (meth) acrylate is preferably used because it is a composition exhibiting well-balanced curability and storage stability.
- an epoxy group-containing ethylenically unsaturated monomer is copolymerized with another polymerizable unsaturated monomer, and then obtained.
- a method of reacting an epoxy group of a copolymer with an acid group of a polymerizable unsaturated monomer having an acid group is a specific method for adjusting the unsaturated double bond-containing acrylic copolymer.
- the unsaturated double bond-containing acryl copolymer used as the first component preferably has a weight average molecular weight of 500 to 100, 000, More preferably, it is 0 0 to 5 0, 0 0 0.
- the weight average molecular weight in this specification means the weight average molecular weight in terms of polystyrene.
- the unsaturated double bond-containing acrylic copolymer may be used alone or in combination of two or more.
- the second component is a monomer that undergoes phase separation when mixed with the copolymer (1). If it is.
- the monomer known ones can be used. For example, the monomers described in International Publication No. 2005/073763 pamphlet can be mentioned.
- a polyfunctional unsaturated double bond-containing monomer (hereinafter sometimes referred to as a monomer (2)) is preferable.
- Monomers (2) include dealcoholization products of polyhydric alcohols and (meth) acrylates. Specifically, pen erythritol triacrylate, dipentyl erythritol hexa (meth) acrylate, dipentaerythritol pen acrylate (meth) acrylate, trimethylol propane tri (meth) acrylate, ditrimethylol propane tetra (meth) Acrylate, Neopentyl Dalcodiol (meth) acrylate and the like.
- acrylate monomers having a polyethylene glycol skeleton such as polyethylene glycol # 200 acrylate (manufactured by Kyoeisha Chemical Co., Ltd.) can also be used.
- polyethylene glycol # 200 acrylate manufactured by Kyoeisha Chemical Co., Ltd.
- One of these polyfunctional unsaturated double bond-containing monomers may be used alone, or two or more thereof may be used in combination.
- the first component is preferably an unsaturated double bond-containing acryl copolymer
- the second component is preferably a polyfunctional unsaturated double bond-containing monomer
- the components that form the cured resin layer are preferably a silicone acrylic block copolymer and an acryl copolymer.
- the first component and the second component have a difference in solubility parameter (SP value) of each component.
- the first component is the copolymer (1).
- the SP value (SP 1) of the first 'component and the SP value (SP 2) of the second component are SP 1 It is preferable to satisfy ⁇ SP2.
- the difference in SP value between the first component and the second component is preferably 0.5 or more.
- the transparent conductive laminate of the present invention when used for a touch panel, there is no flickering and haze It is preferable because the sliding durability and end pushing durability are dramatically improved.
- the cured resin layer has an arithmetic average roughness (R a) according to J IS B 0 60 1 1 1 94 of not less than 0.05 / xm and less than 0.5 / xm. Further, the ten-point average roughness (Rz) according to J IS B 0 6 0 1-1 9 8 2 of the cured resin layer is 0.5 or more and less than 2_im.
- the range of Ra is preferably 0.1 l or more and less than 0.4 xm, particularly preferably 0.1 111 or more and less than 0.3 5 m.
- the range of R z is preferably 0.7 / 111 or more and less than 1.5 m, and particularly preferably 0.7 ⁇ 111 or more and less than 1.3 1 m.
- the thickness of the cured resin layer is preferably 10 m or less. If the thickness exceeds 10 m, the flexibility may be insufficient, and the sliding durability and end-pressing durability may be poor when used for evening channels. In order to further improve the above characteristics, the thickness of the cured resin layer is preferably 8 m or less, more preferably H m or less.
- the cured resin layer is formed by applying a coating solution containing the first component and the second component to a high molecular film, drying it as necessary, and then curing it by irradiation with ionizing radiation or heat treatment. can do.
- Coating liquid 62
- Coating methods include doctor knife, barco overnight, gravure roll coater, curtain coat overnight, knife coat evening, spinco evening, etc., using known coating machines, spraying method, dipping method Etc.
- this cured resin layer may have the same composition or may be different from each other.
- a knives knife, a bar coater, a gravure mouth, a luco, a power, a tenco Methods using a known coating machine such as Knife Co., Spinco Co., etc., spray method, dipping method, etc. are used.
- a coating liquid whose concentration and viscosity are adjusted. The method of forming a layer by heat processing etc. is mentioned.
- alcohol-based or hydrocarbon-based solvents such as ethanol, isopropyl alcohol, butanol, 1-methoxy-2-propanol, hexane, cyclohexane, and rigin are preferable.
- xylene, toluene, ketones such as methyl ethyl ketone and methyl isobutyl ketone it is preferable to use xylene, toluene, ketones such as methyl ethyl ketone and methyl isobutyl ketone.
- polar solvents such as cyclohexanone, butyl acetate, and isobutyl acetate can be used. These can be used alone or as a mixed solvent of two or more.
- an ultraviolet absorber In order to prevent heat and light deterioration of the cured resin layer, it is also possible to add an ultraviolet absorber, an antioxidant, an anti-aging agent and the like.
- the thickness of the plasticized resin layer is preferably 0.05 m or more and 0.5 m or less, more preferably 0.05 m or more and 0.3 2 m or less.
- metal oxide or metal fluoride fine particles with an average primary particle size of 100 nm or less D or Z and fluorine resin are added to the cured resin layer alone or in combination. You may do it.
- the refractive index of the hardened resin layer at this time is smaller than the refractive index of the polymer film, and the refractive index is preferably 1.20 or more and 1.55 or less, more preferably 1.20 or more and 1.45 or less. It is.
- the cured resin layer can be laminated with two or more types of cured resin layers of different materials and hardness.
- the refractive index is 1.4 on the cured resin layer
- the average primary particle size of the fine particles C contained in the cured resin layer is larger than 0.1 / m.
- the fine particles C include, for example, inorganic fine particles such as silica fine particles, organic fine particles such as crosslinked acrylic fine particles and crosslinked polystyrene. Can be mentioned.
- Fine particle D The average primary particle size of the fine particles D is preferably 10 Onm or less, more preferably 75 nm or less, and still more preferably 50 nm or less.
- the transparent conductive laminate of the present invention comprises at least one low refractive index layer and at least one high refractive index layer between the polymer film or cured resin layer and the transparent conductive layer 11 or the metal oxide layer.
- the low refractive index layer can have an optical interference layer in contact with the metal oxide layer or the transparent conductive layer 11.
- the optical interference layer is composed of at least one high refractive index layer and at least one low refractive index layer. Two or more combined units of the high refractive index layer and the low refractive index layer can be used.
- the thickness of the optical interference layer is preferably 30 nm to 300 nm, more preferably .50 nm to 200 nm.
- the optical interference layer improves the adhesion between the layers and the optical properties of the transparent conductive laminate, particularly the transmittance and color tone.
- the high refractive index layer is, for example, a layer formed by hydrolysis and condensation polymerization of a metal alkoxide, or a component obtained by hydrolysis and condensation polymerization of a metal alkoxide or Z and a thermosetting resin component or Z and ionizing radiation curing.
- At least one of the functional resin components and at least the average primary particle size Is a layer composed of fine particles D made of a metal oxide or a metal fluoride of 100 nm or less.
- metal alkoxide examples include titanium alkoxide, zirconium alkoxide, and alkoxysilane.
- titanium alkoxide examples include titanium tetraisopropoxide, tetra-n-propyl orthotitanate, titanium tetra-n-butoxide, and tetrakis (2-ethylhexyloxy) titanate.
- zirconium alkoxide examples include zirconium tetraisopropoxide, zirconium tetra-n-butoxide and the like.
- alkoxysilane the same ones as exemplified in the description of the transparent conductive layer 12 can be used.
- the metal oxide or metal fluoride fine particles D having an average primary particle diameter of 10 Onm or less as described above may be added singly or in appropriate amounts. By adding fine particles D, it is possible to adjust the refractive index of the high refractive index layer.
- the weight ratio of the fine particles D to the metal alkoxide or Z and the thermosetting resin or Z and the ionizing radiation curable resin is 0: 100 to 66.6: It is preferably 33.3, more preferably 0: 100 to 60:40. If the weight ratio of fine particles D to metal alkoxide or Z and thermosetting resin or Z and ionizing radiation curable resin exceeds 66.6: 33.3, the strength required for the optical interference layer is sufficient. It may be insufficient and is not preferable.
- the thickness of the high refractive index layer is preferably 15 to 2500 nm, more preferably 30 to 1550 nm.
- the refractive index of the high refractive index layer is low It is preferable that the refractive index is larger than the refractive index of the refractive index layer and the cured resin layer, and the difference is 0.2 or more.
- the low refractive index layer constituting the optical interference layer of the present invention is the ionizing radiation curable resin or thermosetting resin exemplified in the description of the resin alkoxysilane or the cured resin layer exemplified as the alkoxysilane used for the transparent conductive layer 12. It can be formed using.
- Fine particles made of metal oxide or metal fluoride with an average primary particle size of 100 nm or less for the purpose of enhancing adhesion to the transparent conductive layer 1 or the metal oxide layer and adjusting the refractive index D can be used alone or in combination with two or more.
- Low refractive index as fine particles D used when this, such as S I_ ⁇ 2 or M g F 2 are suitable.
- the thickness of the low refractive index layer is preferably 15 to 2500 nm, more preferably 30 to 1550 nm. Yaichidokoro Formation
- a hard coat layer is provided on the surface to which an external force is applied when used in a latch panel, that is, on the surface of the polymer film opposite to the transparent conductive layer. It is preferable to provide it.
- the material for forming the hard coat layer include organosilane-based thermosetting resins such as methyltriethoxysilane and phenyltriethoxysilane, melamine-based thermosetting resins such as etherified methylolmelamine, and polyol acrylic.
- organosilane-based thermosetting resins such as methyltriethoxysilane and phenyltriethoxysilane
- melamine-based thermosetting resins such as etherified methylolmelamine
- polyol acrylic examples thereof include polyfunctional acrylate-based ultraviolet curable resins such as rate, polyester acrylate, urethane acrylate, and epoxy acrylate.
- the thickness of the hard coat layer is preferably 2 to 5 m from the viewpoint of flexibility and friction resistance.
- the hard coat layer can be formed by a coating method.
- a coating method As an actual coating method, the above-mentioned compound is dissolved in various organic solvents, and after coating on a transparent organic polymer film using a coating liquid whose concentration and viscosity are adjusted, radiation irradiation, heat treatment, etc. Harden the layer.
- Coating methods include, for example, the micro log rabia coat method, the Mayer bar coat method, the direct gravure coat method, the reverse roll coat method, the force one ten coat method, the spray coat method, the comma coat method, the die coat method, and the knife coat.
- Various coating methods such as spin coating and spin coating are used.
- the hard coat layer is laminated directly on the polymer film or via an appropriate anchor layer.
- the anchor layer include various layers such as a layer having a function of improving the adhesion between the hard coat layer and the polymer film, and a layer having a three-dimensional refractive index characteristic with a negative K value.
- Preferred are a phase compensation layer, a layer having a function of preventing the transmission of moisture and air or a function of absorbing moisture and air, a layer having a function of absorbing ultraviolet rays and infrared rays, and a layer having a function of reducing the chargeability of the film. Can be mentioned. Evening panel
- the writing durability is improved by using the transparent conductive laminate of the present invention as the transparent electrode substrate, particularly in the end region.
- a transparent evening panel with improved durability sliding durability / end-pressing durability
- the present invention will be specifically described by way of examples. However, the present invention is not limited to these examples.
- a DC voltage of 5 V is applied between the parallel electrodes on the movable electrode substrate or fixed electrode substrate.
- the voltage was measured at intervals of 5 mm in the direction perpendicular to the parallel electrodes.
- the voltage at the measurement start position A is E A
- the voltage at the measurement end position B is E B
- the measured voltage E x at a distance from A the theoretical value ⁇ ⁇
- the linearity L and the following formula. .
- End push durability test method '' Made of polyacetal with a tip of 0.8 R parallel to the insulating layer at 2.0 mm and 1.5 mm from the insulating layer around the movable electrode substrate of the fabricated transparent latch panel
- a pen endurance test was performed 100,000 times in a straight line at a load of 450 g using a pen.
- a linearity change before and after the endurance durability test of 1.5% or more was evaluated as NG.
- the measurement was performed using a Nippon Denshoku Industries Co., Ltd. haze meter NDH200.
- the total light transmittance was measured according to JI S K7316-1.
- Environmental reliability evaluation high temperature and high humidity reliability
- the surface resistance value R 1 of the transparent conductive layer surface of the transparent conductive laminate was measured at room temperature.
- the transparent conductive laminate is then placed in an environment of 60 ° C and 90% RH for 240 hours. rAfter leaving, it was taken out indoors, and the surface resistance value R2 of the transparent conductive layer surface was measured at room temperature.
- the surface resistance value change rate (R2 / R1) was determined from the obtained R2 and R1 values. When the rate of change of the surface resistance value was within the range of 0.8 to 1.2, it was evaluated that the high temperature and high reliability were good.
- Environmental reliability evaluation high temperature reliability
- the surface resistance value R 1 of the transparent conductive layer surface of the transparent conductive laminate was measured at room temperature.
- the transparent conductive laminate was left to stand for 24 ohms in an 80 ° CDry (absolutely dry) environment, then taken out indoors, and the surface resistance value R 2 of the transparent conductive layer surface was measured at room temperature. From the obtained R 2 and R 1 values, the surface resistance value change rate (R 2 / R 1) was determined. If the rate of change of the surface resistance value was within the range of 0.8 to 1.2, it was evaluated that the high temperature reliability was good. Average primary particle size of fine particles
- the average primary particle size of the fine particles was measured using a laser diffraction / scattering particle size distribution analyzer. '
- Measurement was performed using a stylus profilometer DEKTAK3 manufactured by S 1 o an. The measurement was performed according to JIS B0601-1994 edition.
- a fluorescent lamp is reflected on the surface of the cured resin layer opposite to the surface on which the transparent conductive layer of the prepared transparent conductive laminate is formed.
- the antiglare property was evaluated based on the appearance of the fluorescent lamp end reflected on the surface of the cured resin layer. The evaluation is shown as good ( ⁇ ), slightly good ( ⁇ ), and poor (X).
- the center part of the prepared evening panel was slid to a maximum of 300,000 strokes by 100,000 round trips with a 450 g load using a 0.8 ria rear pen, and a sliding durability test.
- the change in the linearity of the front and rear evening panels was measured.
- a linearity change of less than 1.5% was considered good ( ⁇ K), and a linearity change of 1.5% or more was considered bad (NG).
- the number of slides when the electrical characteristics were NG was measured. End push durability ⁇
- N—jS (aminoethyl) aminopropylmethoxysilane KBM-603 manufactured by Shin-Etsu Chemical Co., Ltd.
- KBM-603 manufactured by Shin-Etsu Chemical Co., Ltd.
- a 15% dispersion made by Shiai Kasei Co., Ltd.
- crystalline ITO nanoparticles with an average primary particle size of 20 nm are dispersed in isopropyl alcohol is 50 parts by weight in terms of solid content.
- the coating liquid D was prepared by mixing 20 parts by weight of CIA Kasei Co., Ltd.) and 30 parts by weight of surfactant SH28PA (manufactured by Toray Dow Corning Co., Ltd.).
- Reference Example 5 Preparation of coating solution E
- coating liquid B prepared in Reference Example 2 1.0 part by weight of silicon oxide fine particles with an average primary particle size of 1.0 m is mixed with 100 parts by weight of alkoxysilane component to obtain coating liquid E. Produced.
- Reference Example 6 Preparation of coating solution F
- Acrylic copolymer containing unsaturated double bonds as the first component (SP value: 10.0, Tg: 92 ° C) 4 parts by weight, pen erythritol triacrylate (SP value as the second component) : 12. 7) 100 parts by weight, photopolymerization initiator “Irgacure” 184 (manufactured by Ciba Specialty Chemicals) 7 parts by weight dissolved in isobutyl alcohol solvent to a solid content of 40% by weight did.
- An unsaturated double bond-containing acrylic copolymer (SP value: 10.0, T g: 92 ° C) was prepared as follows.
- O g of propylene dallic monomethyl ether heated to 110 ° C under a nitrogen atmosphere in a 1,000 ml reaction vessel equipped with a stirring blade, a nitrogen introduction tube, a cooling tube and a dropping funnel. , Tertiary butyl peroxy The solution was added dropwise at a constant rate over 3 hours at the same time with a solution of 80.0 g of propylene glycol monomethyl ether containing 1.8 g of dimethyl hexanoate and then reacted at 110 ° C. for 30 minutes.
- a clear hard coat layer having a thickness of 4 m was formed on one side of a polyethylene terephthalate film having a thickness of 188 xm (manufactured by Teijin DuPont Films Co., Ltd. ⁇ FW) using an ultraviolet curable polyfunctional acrylic resin coating.
- a coating liquid A prepared in Reference Example 1 was coated to a thickness of 2.0 m by the bar coating method on the opposite surface on which the eight-coated layer was formed, and drying at 50 ° C for 1 minute.
- a cured resin layer having irregularities was formed by irradiating with ultraviolet rays.
- the film size after forming the cured resin layer was 2.4%.
- An ITO layer was formed on the cured resin layer by sputtering using an indium oxide tin oxide target having a composition of 95: 5 weight ratio of indium oxide and tin oxide and a packing density of 98%.
- the thickness of the formed IO layer was about 2 Onm, and the surface resistance after ITO formation was about 350 ⁇ / mouth (QZS Q).
- the coating liquid B prepared by the operation of Reference Example 2 was coated on the surface of the transparent conductive layer 11 by the bar coating method so that the thickness was about 200 nm. 08050662
- a transparent conductive layer 12 was formed to form a transparent conductive laminate to be a movable electrode substrate.
- the surface resistance after laminating transparent conductive layer 1 and transparent conductive layer 1 was about 270 ( ⁇ / sq).
- the fabricated movable electrode substrate was heat-treated at 150 ° C. for 90 minutes to crystallize the transparent conductive layer 1 (ITO layer).
- the surface resistance after crystallization of the I layer was about 2 10 ⁇ / mouth ( ⁇ / s q).
- Table 1 shows the environmental reliability characteristics of the fabricated transparent conductive laminate.
- the crystal grain size observed by TEM was in the range of 50 nm to 200 nm.
- 1, 1 is a hard coat layer
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer
- 5 is a transparent conductive layer
- 6 is a glass substrate
- 9 is a dot space. Each one is shown.
- a sliding durability test and an end-pressing durability test were conducted on the fabricated transparent evening panels.
- Table 1 shows the amount of linearity change before and after the test.
- Example 2 As in Example 1, a clear octad coat layer having a thickness of 4 m was formed on one side of a polyethylene terephthalate film (OFW manufactured by Teijin DuPont Films Ltd.) having a thickness of 188 m.
- a polyethylene terephthalate film OFW manufactured by Teijin DuPont Films Ltd.
- coating solution A was coated by the bar coating method to a layer thickness of 2.0 m in the same manner as in Example 1, and dried at 50 ° C for 1 minute.
- a cured resin layer having unevenness was formed by irradiating ultraviolet rays.
- the film haze after forming the cured resin layer was 2.3%.
- a SiOx layer was formed on the cured resin layer having irregularities by a sputtering method using a Si target. The thickness of the formed SiOx layer is about 2. 08 050662
- a transparent conductive layer 11 and a transparent conductive layer 1 2 were formed in the same manner as in Example 1 to produce a movable electrode substrate.
- Table 1 shows the environmental reliability characteristics of the fabricated transparent conductive laminate.
- the crystal grain size observed by T E M was in the range of 50 nm to 20 nm.
- a fixed electrode substrate was produced in the same manner as in Example 1.
- the transparent latch panel shown in Fig. 2 was fabricated using the fabricated fixed electrode substrate and movable electrode substrate.
- 1 is a hard coat layer
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer 1
- 5 is a transparent conductive layer 2
- 6 is a glass substrate
- 7 is a metal.
- Oxide layer, 9 indicates a dot spacer.
- Example 2 In the same manner as in Example 2, a clear eight-coating layer having a thickness of 4 m was formed on one side of a polyester terephthalate film having a thickness of 1888 m (manufactured by Teijin DuPont Films Ltd. ⁇ FW).
- the coating liquid A was coated by the her coat method so as to have a thickness of 2.0 m in the same manner as in Example 1, and dried at 50 ° C. for 1 minute.
- a cured resin layer having unevenness was formed by irradiating ultraviolet rays.
- the film thickness after forming the cured resin layer was 2.3%.
- a SiOx layer was formed on the cured resin layer having irregularities by a sputtering method using a Si target. The thickness of the formed SiOx layer is approximately 2.
- a transparent conductive layer 1-1 and a transparent conductive layer 1-2 were formed in the same manner as in Example 1 to produce a movable electrode substrate.
- the thickness of the transparent conductive layer 1-1 was changed from 20 nm to 33 nm.
- a movable electrode substrate was prepared. Table 1 shows the environmental reliability characteristics of the fabricated transparent conductive laminate. The crystal grain size observed by TEM was in the range of 50 nm to 200 nm. 50662
- a fixed electrode substrate was produced in the same manner as in Example 1.
- the transparent touch panel shown in Fig. 2 was produced using the produced fixed electrode substrate and movable electrode substrate.
- 1 is a hard coat layer
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer 1
- 5 is a transparent conductive layer 2
- 6 is a glass substrate
- 7 is a metal.
- Oxide layer, 9 indicates a dot spacer.
- Example 2 In the same manner as in Example 2, a clear hard coat layer having a thickness of 4 X m was formed on one side of a polyethylene terephthalate film having a thickness of 1888 m (manufactured by Teijin DuPont Films, Inc., O FW).
- coating solution A was coated by the bar coating method to a thickness of 2.0; tim in the same manner as in Example 1, and dried at 50 ° C. for 1 minute. Thereafter, ultraviolet rays were irradiated to form a cured resin layer having irregularities. The film haze after forming the cured resin layer was 2.3%.
- a SiOx layer was formed on the cured resin layer having irregularities by a sputtering method using a Si target.
- the formed SiOx layer had a thickness of about 2. Onm.
- a transparent conductive layer 11 was formed in the same manner as in Example 1. Same as Example 1 except that the crystalline IT ⁇ nanoparticles used in Example 1 were replaced with amorphous IT ⁇ nanoparticles (average primary particle size 20 nm, manufactured by Shi Kasei Co., Ltd.) Then, the transparent conductive layer 12 was formed on the transparent conductive layer 11, and a movable electrode substrate was produced. Table 2 shows the environmental reliability characteristics of the fabricated transparent conductive laminate. The crystal grain size observed by T E M was in the range of 50 nm to 200 nm.
- a fixed electrode substrate was produced in the same manner as in Example 1.
- the transparent latch panel shown in Fig. 2 was fabricated using the fabricated fixed electrode substrate and movable electrode substrate.
- 1 is a hard coat layer
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer
- 5 is a transparent conductive layer
- 6 is a glass substrate
- 7 is a metal oxide layer
- 9 is a dot spacer.
- Example 2 In the same manner as in Example 1, a clear octade coating layer having a thickness of 41 m was formed on one side of a polyethylene terephthalate film (OFW manufactured by Teijin DuPont Films Ltd.) having a thickness of 188 xm.
- a polyethylene terephthalate film OFW manufactured by Teijin DuPont Films Ltd.
- coating solution C prepared in the procedure of Reference Example 3 is coated by a bar coating method to a thickness of 3.5 xm and dried at 50 ° C for 1 minute. Then, ultraviolet rays were irradiated to form a cured resin layer. The film thickness after forming the cured resin layer was 1.0%.
- an SiOx layer was formed by sputtering using an Si target.
- the thickness of the formed SiOx layer was about 2.0 nm.
- an ITO layer was formed on this SiOx layer by sputtering using an indium tin oxide monooxide target having a composition of indium oxide and tin oxide at a weight ratio of 9 7: 3 and a packing density of 98%.
- the thickness of the formed I layer was about 20 nm, and the surface resistance after the I TO layer was about 550 ⁇ well ( ⁇ / s q).
- a transparent conductive layer 1 was formed on the coating liquid E prepared by the operation of Reference Example 5 in the same manner as in Example 1 to prepare a transparent conductive laminate to be a movable electrode substrate.
- the fabricated movable electrode substrate was heat-treated at 150 ° C for 60 minutes to crystallize the ITO layer.
- the surface resistance after crystallization of the I layer was about 37 ⁇ / D ( ⁇ / s q).
- Table 2 shows the environmental reliability characteristics of the fabricated transparent conductive laminate.
- the crystal grain size observed by TEM was in the range of 50 nm to 200 nm.
- a fixed electrode substrate was produced in the same manner as in Example 1. Produced fixed electrode base A transparent latch panel shown in Fig. 2 was fabricated using the plate and the movable electrode substrate.
- 1 is a hard coat layer
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer
- 5 is a transparent conductive layer
- 2 is a glass substrate
- 7 is a metal.
- Oxide layer, 9 indicates a dot spacer.
- Example 2 In the same manner as in Example 1, a clear octad coat layer having a thickness of 42 m was formed on one side of a polyethylene terephthalate film having a thickness of 88 8 im (OFW manufactured by Teijin DuPont Film Co., Ltd.).
- the coating solution D prepared in the procedure of Reference Example 4 was coated by the bar coat method so that the thickness was 2.5 / m, and then at 50 ° C for 1 minute. After drying, ultraviolet rays were irradiated to form a cured resin layer. The film thickness after forming the cured resin layer was 0.7%.
- an SiOx layer was formed by sputtering using an Si target.
- the thickness of the formed S i Ox layer was about 2. O nm.
- an ITO layer was formed on the SiOx layer by sputtering using an indium tin oxide target having a composition of indium oxide and tin oxide at a weight ratio of 9 7: 3 and a filling density of 98%.
- the thickness of the formed ITO layer was approximately 20 nm, and the surface resistance after the formation of the ITO layer was approximately 550 ⁇ / port ( ⁇ / sq).
- a transparent conductive layer 1 was formed on the coating liquid E prepared by the operation of Reference Example 5 in the same manner as in Example 1 to prepare a transparent conductive laminate to be a movable electrode substrate.
- the fabricated movable electrode substrate was heat-treated at 150 ° C. for 60 minutes to crystallize the ITO layer.
- the surface resistance after the IT ⁇ layer was crystallized was about 370 ⁇ / ⁇ ( ⁇ / sq).
- Table 2 shows the environmental reliability characteristics of the fabricated transparent conductive laminate.
- the crystal grain size observed by TEM is 50 nm to 200 nm. It was a range. '
- a fixed electrode substrate was produced in the same manner as in Example 1.
- the transparent latch panel shown in Fig. 2 was fabricated using the fabricated fixed electrode substrate and movable electrode substrate.
- 1 is a hard coat layer
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer 1
- 5 is a transparent conductive layer 2
- 6 is a glass substrate
- 7 is a metal.
- Oxide layer, 9 indicates a dot spacer.
- a sliding durability test and an end-pressing durability test were conducted on the manufactured transparent evening panels. Table 2 shows the linearity change before and after the test.
- Example 4 Example 5
- Example 6 End push + 0.203 ⁇ 4 + 0.11% + 0.093 ⁇ 4
- a transparent conductive laminate was produced as a movable electrode substrate in the same manner as in Example 1 except that the transparent conductive layer-2 was not laminated.
- Table 3 shows the environmental reliability characteristics of the fabricated transparent conductive laminate.
- the crystal grain size observed by T E M was in the range of 50 nm to 200 nm.
- a fixed electrode substrate was produced in the same manner as in Example 1.
- the transparent latch panel shown in Fig. 3 was fabricated using the fabricated fixed electrode substrate and movable electrode substrate.
- 1 is a hard coat layer
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer 512
- 6 is a glass substrate
- 9 is a dot spacer.
- the manufactured transparent touch panel was subjected to a sliding durability test and an end pushing durability test. Table 3 shows the change in linearity before and after the test. Comparative Example 2
- Example 2 In the same manner as in Example 1, a 8 m coat layer having a thickness of 4 m was formed on one side of a polyethylene terephthalate film (Teijin DuPont Films Co., Ltd. OFW) having a thickness of 1 88 x m.
- a polyethylene terephthalate film Teijin DuPont Films Co., Ltd. OFW
- a cured resin layer having irregularities was formed on the formed cured resin layer.
- a polythiophene-based conductive polymer is formed as a transparent conductive layer, and a transparent conductive layer is formed so that the surface resistance value after forming the transparent conductive layer is about 500 ⁇ ( ⁇ / sq).
- substrate was produced.
- the formed transparent conductive layer had a thickness of about 150 nm. Table 3 shows the environmental reliability characteristics of the fabricated transparent conductive laminate.
- a fixed electrode substrate was produced in the same manner as in Example 1.
- the transparent latch panel shown in Fig. 4 was fabricated using the fabricated fixed electrode substrate and movable electrode substrate.
- 1 is a hard coat layer
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer
- 1 and 6 are glass substrates
- 8 is a conductive polymer layer
- 9 is a dot spacer.
- a transparent conductive laminate as a movable electrode substrate was prepared in the same manner as in Example 1 except that a polythiophene conductive polymer was laminated as the transparent conductive layer-2.
- the surface resistance value after laminating the transparent conductive layer 1 and the transparent conductive layer 1 2 was about 3 10 ⁇ // ( ⁇ / s q).
- the fabricated movable electrode substrate was heat-treated at 150 ° C. for 90 minutes to crystallize the transparent conductive layer 1 (ITO layer).
- the surface resistance after the ⁇ ⁇ layer crystallized was about 240 ⁇ / mouth ( ⁇ / sq).
- Table 3 shows the environmental reliability characteristics of the fabricated transparent conductive laminate.
- the crystal grain size observed by TEM is 50 ⁇ ! It was in the range of ⁇ 200 nm.
- a fixed electrode substrate was produced in the same manner as in Example 1.
- the transparent latch panel shown in Fig. 1 was fabricated using the fabricated fixed electrode substrate and movable electrode substrate.
- 1 is a hard coat layer
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer
- 5 is a transparent conductive layer
- 2 and 6 are glass substrates
- 9 is a dot glass.
- the manufactured transparent touch panel was subjected to a sliding durability test and an end pushing durability test.
- Table 3 shows the amount of linearity change before and after the test.
- a transparent conductive laminate as a movable electrode substrate was produced in the same manner as in Examples 1 to 3, except that the amorphous transparent conductive layer IZO was used as the transparent conductive layer 1-1. After the formation of the IZO layer, the surface resistance value was about 2300 ⁇ / port ( ⁇ / sq), and the thickness was about 20 nm. The surface resistance value after laminating the transparent conductive layer 12 was about 1700 ( ⁇ / sq). Table 4 shows the environmental reliability characteristics of the fabricated transparent conductive laminate. No crystals were confirmed by observation with TEM.
- a fixed electrode substrate was produced in the same manner as in Example 1. Using the prepared fixed electrode substrate and movable electrode substrate, a transparent latch panel having the structure shown in FIG. 1 (Comparative Example 4) or FIG. 2 (Comparative Examples 5 and 6) was prepared.
- 1 is a hard coat layer
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer 1
- 5 is a transparent conductive layer
- 6 is a glass substrate
- 7 is a metal oxide layer
- 9 is a dot spacer.
- the manufactured transparent touch panel was subjected to a sliding durability test and an end pushing durability test. Table 4 shows the change in linearity before and after the test.
- a transparent conductive laminate was produced as a movable electrode substrate in the same manner as in Examples 1 to 3, except that the cured resin layer was not laminated.
- the oligomer component precipitated from the polyethylene terephthalate film after the heat treatment to crystallize the IT layer, and the film whitened, so it cannot be used as a transparent conductive laminate. Therefore, no further evaluation was performed.
- a transparent conductive laminate as a movable electrode substrate was produced in the same manner as in Example 1 except that the thickness of the transparent conductive layer 12 was changed to 1.1 ⁇ m.
- Table 5 shows the environmental reliability characteristics of the fabricated transparent conductive laminate.
- a fixed electrode substrate was produced in the same manner as in Example 1.
- the transparent latch panel shown in Fig. 1 was fabricated using the fabricated fixed electrode substrate and movable electrode substrate.
- 1 is a hard coat layer
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer
- 5 is a transparent conductive layer
- 6 is a glass substrate
- 9 is a dot glass.
- the transparent conductive laminate of the present invention had good end-press durability, transparency, and environmental reliability.
- the transparent conductive laminate of Comparative Example 1 had poor end-push durability, and the transparent conductive laminate of Comparative Example 2 could not secure vertical conduction and did not operate as a transparent latch panel.
- the transparent conductive laminate of Comparative Example 3 had poor transparency.
- PET polyethylene terephthalate
- a transparent conductive layer is formed by sputtering using an indium oxide tin oxide oxide composition having a weight ratio of indium oxide to tin oxide of 95: 5 and a packing density of 98%.
- I ⁇ layer The thickness of the I layer was about 20 nm, and the surface resistance was about 350 / U ( ⁇ / sq).
- the coating liquid B prepared in the operation of Reference Example 2 was coated on the transparent conductive layer 1 by the bar coat method, baked at 130 ° C for 2 minutes, and the transparent conductive layer 1 having a thickness of about 200 nm was coated. 2 was formed.
- the surface resistance of the transparent conductive layer consisting of transparent conductive layer 1-1 and transparent conductive layer 1-2 was about 270 ⁇ / port ( ⁇ / sq). Subsequently, a heat treatment for 9 ° C. at 150 ° C. was performed, and the transparent conductive layer 1 (ITO layer) was crystallized to produce a transparent conductive laminate to be a movable electrode substrate.
- the surface resistance of the transparent conductive layer consisting of transparent conductive layer 1 and transparent conductive layer 1 after the ITO layer was crystallized was about 2 10 ⁇ well ( ⁇ / sq).
- the crystal grain size of the transparent conductive layer 11 observed by TEM was in the range of 50 nm to 20 O nm. Table 6 shows the characteristics of the fabricated transparent conductive laminate.
- a fixed electrode substrate was produced in the same manner as in Example 1. Produced fixed electrode base The transparent evening panel shown in Fig. 5 was fabricated using the plate and the movable electrode substrate.
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer
- 5 is a transparent conductive layer
- 6 is a glass substrate
- 9 is a dot spacer.
- Table 6 shows the characteristics of the manufactured evening panel. As is clear from Table 6, the evening panel using the transparent conductive laminate of this example has anti-glare properties, anti-Yuton ring properties, flickering, sliding durability, endurance durability B and fingerprint wiping properties. Both were good. Comparative Example 10
- Example 8 a cured resin layer having a thickness of 3.5 xm was formed on both sides of a polyethylene terephthalate film (OFW manufactured by Teijin DuPont Film Co., Ltd.) having a thickness of 188 xm.
- a polyethylene terephthalate film OFW manufactured by Teijin DuPont Film Co., Ltd.
- an indium oxide and tin oxide composition having a weight ratio of 95: 5 and a packing density of 98% was used to form an amorphous indium monoxide oxide by sputtering.
- One transparent conductive layer 1
- the thickness of the ITO layer was about 20 nm, and the surface resistance was about 350 Q / U ( ⁇ / sq).
- a transparent conductive layered body serving as a movable electrode substrate was produced by forming a transparent conductive layer 12 having a thickness of about 20 Onm on the transparent conductive layer-1.
- the surface resistance of the transparent conductive layer consisting of transparent conductive layer 1 and transparent conductive layer 1 was about 270 ⁇ well ( ⁇ / sq).
- Table 6 shows the characteristics of the fabricated transparent conductive laminate.
- a fixed electrode substrate was produced in the same manner as in Example 1. Using the fabricated fixed electrode substrate and movable electrode substrate, the transparent latch panel in Fig. 5 was fabricated.
- 2 is a polymer film
- 3 is a cured resin layer
- 4 is a transparent conductive layer
- 5 is a transparent conductive layer
- 6 is a glass substrate
- 9 is a dot spacer.
- Table 6 shows the characteristics of the fabricated evening panel. As is clear from Table 6, The torch panel using the transparent conductive laminate of this example, in which the transparent conductive layer 11 is an amorphous ITO layer, has poor sliding durability and end pushing durability. Comparative Example 11
- Example 12 In the same manner as in Example 8, a cured resin layer having a thickness of 3.5 m was formed on both sides of a polyethylene terephthalate film having a thickness of 188 ⁇ m (OFW manufactured by Teijin DuPont Films Ltd.). Next, a transparent conductive layer 12 having a thickness of about 20 Onm was formed directly on one surface on which the cured resin layer was formed in the same manner as in Example 8 to produce a transparent conductive laminate. The produced transparent conductive laminate was not electrically conductive and did not function as a transparent conductive laminate. Comparative Example 12
- Example 8 a cured resin layer having a thickness of 3.5 m was formed on both sides of a polyethylene terephthalate film having a thickness of 188 zm (OFW manufactured by Teijin DuPont Films Ltd.).
- a transparent conductive layer 1 (ITO layer) was formed on one surface on which the cured resin layer was formed in the same manner as in Example 1.
- the thickness of the ITO layer was about 20 nm, and the surface resistance was about 350 ⁇ well ( ⁇ / sq).
- a heat treatment at 150 ° C. for 90 minutes was performed to crystallize the transparent conductive layer 1 (ITO layer) to produce a transparent conductive laminate to be a movable electrode substrate.
- the surface resistance of the transparent conductive layer 11 after the ITO layer was crystallized was about 260 / ⁇ ( ⁇ / sq).
- Table 6 shows the characteristics of the fabricated transparent conductive laminate.
- a fixed electrode substrate was produced in the same manner as in Example 1.
- the transparent touch panel shown in Fig. 6 was fabricated using the fabricated fixed electrode substrate and movable electrode substrate.
- FIG. 6 2 is a polymer film, 3 is a cured resin layer, 4 is a transparent conductive layer 1, 6 is a glass substrate, and 9 is a dot spacer.
- Table 6 shows the characteristics of the manufactured evening panel. As is clear from Table 6, The evening panel of this example, in which the transparent conductive layer 12 is not laminated, has poor sliding durability and end pushing durability B.
- Example 8 Comparative example 10 Comparative example 11 Comparative example 12 Thickness (M m) 3.5 5 3. 5 3. 5 3. 5 Water contact angle (degrees) 77 77 77 77 Transparent conductive layer side
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Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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CN200880002342XA CN101578667B (zh) | 2007-01-16 | 2008-01-15 | 透明导电性层压体及其形成的触摸面板 |
KR1020097016993A KR101410075B1 (ko) | 2007-01-16 | 2008-01-15 | 투명 도전성 적층체 및 그것으로 이루어지는 터치 패널 |
JP2008554097A JP5091165B2 (ja) | 2007-01-16 | 2008-01-15 | 透明導電性積層体およびそれよりなるタッチパネル |
US12/523,276 US11327621B2 (en) | 2007-01-16 | 2008-01-15 | Transparent conductive multilayer body and touch panel made of the same |
EP08703512A EP2109116B1 (en) | 2007-01-16 | 2008-01-15 | Transparent conductive multilayer body and touch panel made of the same |
AT08703512T ATE555483T1 (de) | 2007-01-16 | 2008-01-15 | Transparenter leitfähiger mehrschichtiger körper und daraus hergestellter berührungsschirm |
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EP (1) | EP2109116B1 (ja) |
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EP2109116A1 (en) | 2009-10-14 |
US11327621B2 (en) | 2022-05-10 |
EP2109116B1 (en) | 2012-04-25 |
EP2109116A4 (en) | 2010-08-04 |
CN101578667B (zh) | 2011-07-06 |
ATE555483T1 (de) | 2012-05-15 |
US20090315849A1 (en) | 2009-12-24 |
TWI410830B (zh) | 2013-10-01 |
KR101410075B1 (ko) | 2014-06-25 |
JP5091165B2 (ja) | 2012-12-05 |
JPWO2008088059A1 (ja) | 2010-05-13 |
CN101578667A (zh) | 2009-11-11 |
KR20090110914A (ko) | 2009-10-23 |
TW200844823A (en) | 2008-11-16 |
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