Display panel device with touch input function, optical unit for said display panel device, and production method for same

An optical unit for a display panel device with a capacitive touch input function is provided. Within the optical unit, a touch panel laminate comprises: an optically transparent first base material layer laminated on one surface of a transparent adhesive layer; a first transparent conductive layer laminated, via a first undercoat layer, onto the surface of the first base material layer that is on the opposite side to the adhesive layer; an optically transparent second base material layer laminated on to the other surface of the adhesive layer; and a second transparent conductive layer laminated, via a second undercoat layer, on to the surface of the second base material layer that is on the opposite side to the adhesive layer. A polarizing-function laminate comprises a layer that includes a circularly polarized element and is laminated, via the transparent adhesive layer, to a surface of the touch panel laminate that contains one of either the first or the second transparent conductive ...

Optical pressure-sensitive adhesive sheet

The present invention provides an optical pressure-sensitive adhesive sheet which can control the change in capacitance when being applied to an optical member. The present invention provides an optical pressure-sensitive adhesive sheet, including a pressure-sensitive adhesive layer, wherein a relative dielectric constant at a frequency of 1 MHz is 2 to 8, and a dielectric tangent at a frequency of 1 MHz is more than 0 and 0.2 or less.

Optical pressure-sensitive adhesive sheet, liquid crystal display and input device comprising the same

The present invention provides an excellent optical pressure-sensitive adhesive sheet having an excellent adhesion property to an optical member. The present invention relates to an optical pressure-sensitive adhesive sheet comprising a pressure-sensitive adhesive layer, wherein a relative dielectric constant at a frequency of 1 MHz is 5 to 10, and an adhesion strength to a glass, which is measured with a peel angle of 180° and a tensile speed of 300 mm/min after 30 min of laminating the optical pressure-sensitive adhesive sheet to the glass, is 3 N/20 mm to 15 N/20 mm.

Pressure-sensitive adhesive functional film and display device

The present invention provides a transparent pressure-sensitive adhesive functional film in which interference fringes hardly occur and corrosion resistance is excellent. The invention relates to a pressure-sensitive adhesive functional film including a transparent substrate, a functional layer (hard coat layer and/or anti-reflection layer) on one surface of the transparent substrate, and a pressure-sensitive adhesive layer on the other surface of the transparent substrate, wherein an amount of (meth)acrylic acid ion extracted from the pressure-sensitive adhesive functional film under the specific conditions is suitably controlled, and an approximate integral value calculated by using a transmittance curve at a wavelength of 400 to 780 nm is suitably controlled.

Optical pressure-sensitive adhesive sheet, and liquid crystal display and input device comprising same

The invention provides an optical pressure-sensitive adhesive sheet, and a liquid crystal display and input device comprising the same. The present invention provides the excellent optical pressure-sensitive adhesive sheet having an excellent adhesion property to an optical member. In particular, the present invention provides an optical pressure-sensitive adhesive sheet which exhibits an excellent adhesion property to the members constituting an electric capacity touch panel, and does not negatively affect the performance of the touch panel such as a detection sensitivity or a response speed, when used for laminating members constituting the electric capacity type touch panel. The present invention relates to an optical pressure-sensitive adhesive sheet comprising an acrylic pressure-sensitive adhesive layer, wherein a relative dielectric constant at a frequency of 1 MHz is 5 to 10, and an adhesion strength to a glass, which is measured with a peel angle of 180 DEG and a tensile speed ...

Optical Adhesive Sheet

Disclosed is an optical adhesive sheet which can suppress malfunction-causing changes in capacitance when said sheet is applied to an optical member. The optical adhesive sheet includes an adhesive layer and is characterised by having a dielectric constant of 2-8 at a frequency of1MHz and a dielectric loss tangent which is greater than 0 but not greater than 0.2 at a frequency of 1 MHz. In addition, at a frequency of 1.0 x 106 Hz, the dielectric constant of said sheet is preferably not less than 60% of the dielectric constant at a frequency of 1.0 x 104 Hz, and the absolute value of the difference between the dielectric loss tangent at a frequency of 1.0 x 106 Hz and that at a frequency of 1.0 x 104 Hz is preferably not greater than 0.15.

Display panel device having touch-input function

The present invention provides: a display panel configuration capable of decreasing the thickness of a device itself compared to prior art, and capable of simplifying layer configuration, in the case that an electrode support substrate of an optically isotropic material is used in a configuration for capacitive touch input; and a display panel device having a capacitive touch input function and being provided with a window, a touch panel laminate, and a display panel. The touch panel laminate in this display panel device is provided with: an optically transparent first substrate layer; a first transparent conductive layer layered on one surface of the first substrate layer with a first undercoat layer interposed therebetween; an optically transparent second substrate layer; and a second transparent conductive layer layered on one surface of the second substrate layer with a second undercoat layer interposed therebetween. This second transparent conductive layer is positioned so as to face ...

Static capacitive touch sensor laminate for display panel device

Provided is a static capacitive touch sensor laminate for a display panel device which has a touch input function and is capable of suppressing the visibility of an electrode pattern, and preventing curvature deformation caused by changes in temperature or humidity conditionsb. A capacitive touch sensor laminate for use in a display panel device having a touch-input function is provided with: a dielectric center substrate structure having flat surfaces formed from a transparent resin material on both sides thereof; one or more transparent coat layers formed on each of the flat surfaces; and a transparent conductive layer formed on and adjacent to the coat layers. The one or more coat layers include at least one refractive index modulation layer for suppressing the visibility of the pattern of an electrode formed from the transparent conductive layer. The thickness of the coat layers formed on each of the flat surfaces is set in a manner such that the layers sandwiching the dielectric center ...

Pressure-sensitive adhesive functional film and display device

The present invention provides a transparent pressure-sensitive adhesive functional film in which interference fringes hardly occur and corrosion resistance is excellent. The invention relates to a pressure-sensitive adhesive functional film including a transparent substrate, a functional layer (hard coat layer and/or anti-reflection layer) on one surface of the transparent substrate, and a pressure-sensitive adhesive layer on the other surface of the transparent substrate, wherein an amount of (meth)acrylic acid ion extracted from the pressure-sensitive adhesive functional film under the specific conditions is suitably controlled, and an approximate integral value calculated by using a transmittance curve at a wavelength of 400 to 780 nm is suitably controlled.

Optical pressure-sensitive adhesive sheet

The present invention provides an optical pressure-sensitive adhesive sheet which can control the change in capacitance, which cause malfunction, when the optical pressure-sensitive adhesive sheet is applied to an optical member. The present invention provides an optical pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer, wherein a relative dielectric constant at a frequency of 1 MHz is 2 to 8, and a dielectric tangent at a frequency of 1 MHz is more than 0 and 0.2 or less.

Capacitive touch sensor laminate for display panel device

A capacitive touch sensor laminate for use in a display panel device includes: a dielectric central substrate structure made of a transparent resin material and formed to have flat surfaces, respectively, on opposite sides thereof; a at least one-layer structured coat layer made of a transparent material, formed on each of the flat surfaces, and including at least one refractive index adjusting layer for suppressing visibility of an electrode pattern formed by the transparent electrically conductive layer; and a transparent electrically conductive layer formed on and in adjacent relation to the coat layer. The at least one-layer structured coat layers formed on respective ones of the flat surfaces are configured such that thicknesses of corresponding layers therein on respective opposite sides of the dielectric central substrate structure are set to allow the corresponding layers to become mutually symmetrical across the dielectric central substrate structure.

PRESSURE-SENSITIVE ADHESIVE SHEET FOR OPTICAL USE

Provided is a pressure-sensitive adhesive sheet for optical use which less suffers from a misoperation-causing change in capacitance upon application to an optical member. 1. A pressure-sensitive adhesive sheet for optical use comprising a pressure-sensitive adhesive layer , the pressure-sensitive adhesive sheet having a dielectric constant (relative) of from 2 to 8 at a frequency of 1 MHz and a dielectric loss tangent of more than 0 and 0.2 or less at a frequency of 1 MHz ,wherein the pressure-sensitive adhesive layer is an acrylic pressure-sensitive adhesive layer;wherein the acrylic pressure-sensitive adhesive layer comprises, as a base polymer, an acrylic polymer derived from an acrylic monomer as an essential monomer component and a polar-group-containing monomer as a copolymerizable monomer component;wherein the essential monomer component is an alkyl (meth)acrylate alone or in combination with an alkoxyalkyl (meth)acrylate, the alkyl (meth)acrylate having a linear or branched chain alkyl group containing 1 to 4 carbon atoms;wherein the polar-group-containing monomer is at least one monomer selected from the group consisting of carboxyl-containing monomers or acid anhydrides of them, hydroxyl-containing monomers, amino-containing monomers, amido-containing monomers, and heterocycle-containing vinyl monomers.2. The pressure-sensitive adhesive sheet for optical use according to claim 1 , wherein the pressure-sensitive adhesive sheet has a dielectric constant (relative) at a frequency of 1.0×10Hz being 60% or more of a dielectric constant (relative) at a frequency of 1.0×10Hz.3. The pressure-sensitive adhesive sheet for optical use according to claim 1 , wherein the pressure-sensitive adhesive sheet has an absolute value of difference between a dielectric loss tangent at a frequency of 1.0×10Hz and a dielectric loss tangent at a frequency of 1.0×10Hz of 0.15 or less.4. The pressure-sensitive adhesive sheet for optical use according to claim 1 ,wherein the ...

Display Panel Device Having Touch Input Function

A display panel device has a window, a touch panel laminate and a display panel. The touch panel laminate has: a transparent first substrate layer; a first transparent conductive layer laminated to the first substrate layer through a first undercoat layer; a transparent second substrate layer; and a second transparent conductive layer laminated to the second substrate layer through a second undercoat layer. The second conductive layer faces the first conductive layer through at least the first substrate layer and the first undercoat layer. The first conductive layer is closer to the window than the first substrate layer. A polarizing film layer is bonded to the window, and a λ/4 retardation film layer is disposed between the polarizing film layer and the touch panel laminate. The display panel is disposed on a side opposite to the window with respect to the touch panel laminate. 1. A display panel device having a capacitive touch input function , comprising a window , a touch panel laminate and a display panel , the display panel device being characterized in that the touch panel laminate comprises: an optically transparent first substrate layer; a first transparent electrically conductive layer laminated to one surface of the first substrate layer through a first undercoat layer; an optically transparent second substrate layer;and a second transparent electrically conductive layer laminated to one surface of the second substrate layer through a second undercoat layer, wherein the second transparent electrically conductive layer is disposed to face the first transparent electrically conductive layer through at least the first substrate layer and the first undercoat layer, and each of the first and second transparent electrically conductive layers is patterned in a given pattern,and wherein:the first transparent electrically conductive layer is disposed on a side closer to the window with respect to the first substrate layer,a polarizing film layer is bonded to the ...

DISPLAY PANEL DEVICE WITH TOUCH INPUT FUNCTION, OPTICAL UNIT FOR SAID DISPLAY PANEL DEVICE, AND PRODUCTION METHOD FOR SAME

Provided is an optical unit for a display panel device with a capacitive touch input function. In the optical unit, a touch panel laminate comprises: an optically transparent first substrate layer laminated to one surface of a transparent adhesive layer; a first transparent electrically conductive layer laminated, through a first undercoat layer, to a surface of the first substrate layer on a side opposite to the adhesive layer; an optically transparent second substrate layer laminated to the other surface of the adhesive layer; and a second transparent electrically conductive layer laminated, through a second undercoat layer, to a surface of the second substrate layer on a side opposite side to the adhesive layer. 1. An optical unit for a display panel device having a capacitive touch input function , comprising a combination of a touch panel laminate and a polarization functional laminate ,wherein: an optically transparent first substrate layer laminated to one surface of an optically transparent adhesive layer,', 'a first transparent electrically conductive layer laminated, through a first undercoat layer, to a surface of the first substrate layer on a side opposite to the adhesive layer,', 'an optically transparent second substrate layer laminated to the other surface of the adhesive layer, and', 'a second transparent electrically conductive layer laminated, through a second undercoat layer, to a surface of the second substrate layer on a side opposite side to the adhesive layer,', 'wherein each of the first and second transparent electrically conductive layers is patterned in a predetermined pattern; and, 'the touch panel laminate comprises'}the polarization functional laminate comprises a layer comprised of at least a circular polarization element, the polarization functional laminate being laminated, through an optically transparent adhesive layer, to one surface of the touch panel laminate on a side having one of the first and second transparent electrically ...

Capacitive Touch Panel

Provided is a capacitive touch panel which has enhanced sensitivity and is usable in an image display panel, etc. in this capacitive touch panel, a window, a first transparent film having a first transparent conductive electrode pattern formed on one surface thereof, and a second transparent film having a second transparent conductive electrode pattern which is formed on one surface thereof and disposed with respect to the first transparent film in such a manner as to allow a capacitance to be formed therebetween, are stacked in turn. The capacitive touch panel comprises a first transparent inter-layer resin provided between the window and the first transparent film, and a second transparent inter-layer resin provided between the first transparent film and the second transparent film, wherein the first transparent inter-layer resin has a dielectric constant greater than that of the second transparent inter-layer resin. 1. A capacitive touch panel in which a window , a first transparent film having a first transparent conductive electrode pattern formed on one surface thereof , and a second transparent film having a second transparent conductive electrode pattern which is formed on one surface thereof and disposed with respect to the first transparent film in such a manner as to allow a capacitance to be formed therebetween , are stacked in turn , the capacitive touch panel comprising a first transparent inter-layer resin provided between the window and the first transparent film , and a second transparent inter-layer resin provided between the first transparent film and the second transparent film , wherein the first transparent inter-layer resin has a dielectric constant greater than that of the second transparent inter-layer resin.2. The capacitive touch panel as defined in claim 1 , wherein each of the dielectric constant of the first transparent inter-layer resin and the dielectric constant of the second transparent inter-layer resin is in the range of 2 to 8.3. ...

Display panel device with touch input function, optical unit for said display panel device, and production method for same

Heat-resistant polymer foam, process for producing the same, and foam substrate

Laminate sheet, method of producing back substrate for plasma display panel, back substrate for plasma display panel, and plasma display panel

The invention provides a laminate sheet used for forming a dielectric layer and a rib simultaneously and integrally. The invention also provides a method of producing a back substrate for plasma display panel, which is excellent in the efficiency of production by reducing the production process significantly by using the laminate sheet. The laminate sheet of the invention is used for integrally forming a dielectric layer and a rib on a glass substrate having electrodes, which comprises a barrier layer laminated on a glass resin composition layer containing inorganic powder and a binder resin, and an inorganic powder-containing viscoelastic layer laminated on the barrier layer.

Impact Absorption Sheet for Flat Panel Display, Process for Producing the Same, and Flat Panel Display

The present invention provides an impact absorption sheet for flat panel display with a polyoxyalkylene-series polymer as the main component, preferably, an impact absorption sheet for flat panel display made of a cured product obtained by curing a composition containing (A) polyoxyalkylene-series polymer having at least one alkenyl group in each molecule, (B) compound having an average of 2 or more hydrosilyl groups in each molecule, and (C) hydrosilylation catalyst. According to the present invention, an impact absorption sheet for flat panel display can be obtained, which can meet the size reduction and weight reduction of flat panel display, and which affords practically sufficient impact absorbability even in an area of thin film where practically sufficient impact absorbability has not been conventionally achieved. According to the present invention, moreover, an impact absorption sheet for flat panel display can be obtained, which not only has superior impact absorbability but is also superior in easy adhesion to flat panel display and redetachability after adhesion.

Gasket material

The present invention provides a gasket material to be placed between two opposing faces to provide a tight closure between them. The gasket material of the present invention, wherein an adhesive layer comprised of a cured product obtained by reacting a polyoxyalkylene polymer having at least one alkenyl group in each molecule with a compound containing two or more hydrosilyl groups on average in each molecule is formed on both surfaces of a substrate sheet, is superior in elasticity and compaction property, shows superior adhesion to various materials, does not cause cohesive failure during detachment and is superior in removability. Therefore, a superior sealing effect lasts for a long time, the gasket material can be removed without leaving residues of the adhesive layer on an adherend after removal, and workability including removal of the gasket material can be improved.

Transparent adhesive sheet for flat panel display and flat panel display

The invention provides a transparent adhesive sheet for flat panel display, which shows superior level difference absorbability and does not develop bubbles in the adhesion surface to a plastic plate. The transparent adhesive sheet for flat panel display is made of a cured product of a composition comprising (A) a polyoxyalkylene based polymer having at least one alkenyl group in one molecule, (B) a compound having an average of not less than 2 and less than 5 hydrosilyl groups in one molecule, and (C) a hydrosilylation catalyst, wherein the transparent adhesive sheet has a shear storage elastic modulus (G′) of not more than 1.0×10 5 Pa at 25° C. and 1 Hz, and a gel fraction of not less than 40%.

Display panel device having touch-input function

Capacitive touch sensor laminate for display panel device

Laminate sheet, method of producing back substrate for plasma display panel, back substrate for plasma display panel, and plasma display panel

The invention provides a laminate sheet used for forming a dielectric layer and a rib simultaneously and integrally. The invention also provides a method of producing a back substrate for plasma display panel, which is excellent in the efficiency of production by reducing the production process significantly by using the laminate sheet. The laminate sheet of the invention is used for integrally forming a dielectric layer and a rib on a glass substrate having electrodes, which comprises a barrier layer laminated on a glass resin composition layer containing inorganic powder and a binder resin, an inorganic powder-containing viscoelastic layer laminated on the barrier layer.

Impact absorption sheet for flat panel display, process for producing the same, and flat panel display

This invention provides an impact absorption sheet for a flat panel display, composed mainly of a polyoxyalkylene polymer, preferably an impact absorption sheet comprising (A) a polyoxyalkylene polymer containing at least one alkenyl group in one molecule, (B) a compound containing two or more hydrosilyl groups on average in one molecule, and (C) a cured product prepared by curing a hydrosilylation catalyst-containing composition. The impact absorption sheet for a flat panel display can cope with thickness reduction and weight reduction requirements of flat panel displays, and can realize excellent impact absorption particularly in a small thickness region in which impact absorption which is satisfactory from a practical point of view could not have hitherto been realized. The impact absorption sheet for a flat panel display is excellent in impact absorption, as well as in easiness in application to a flat panel display and removability after the application.

Adhesive sheet for the removal of fluorescent substances

Impact absorption sheet for flat panel display and manufacturing method thereof, and flat panel display

Haftklebebahn zur entfernung von fluoreszierenden substanzen

Pressure sensitive adhesive optical film and image viewing display

Transparent adhesive sheet for flat panel display

Process for producing natural rubber for pressure-sensitive adhesive and natural rubber-based pressure-sensitive adhesive composition

A process for producing a natural rubber for a pressure-sensitive adhesive, which comprises decreasing a molecular weight of an unmasticated natural rubber by the action of a peptizing agent while dissolving the unmasticated natural rubber in an organic solvent, and a natural rubber-based pressure-sensitive adhesive composition comprising a natural rubber having a weigh average molecular weight Mw of 700,000 or less obtained by the process.

誘電体層及び誘電体層形成基板の製造方法

Inorganic powder-containing resin composition, film-forming material layer, transfer sheet, method for producing substrate provided with dielectric layer, substrate provided with dielectric layer, and plasma display panel

無機粉体含有樹脂組成物、膜形成材料層、転写シート、誘電体層形成基板の製造方法、誘電体層形成基板、及びプラズマディスプレイパネル

　焼成工程での脱泡性に優れ、誘電体層における気泡の残存防止に顕著な効果を有し、低温度域で焼成させても焼成後には欠陥や曇りを生じることがなく、高い光透過率を有する光学特性に優れた誘電体層を形成することができる無機粉体含有樹脂組成物、膜形成材料層、転写シート、誘電体層形成基板の製造方法、誘電体層形成基板、及びプラズマディスプレイパネルの提供を目的とする。本発明の無機粉体含有樹脂組成物は、無機粉体と、バインダ樹脂と、アルカリ金属化合物、アルカリ土類金属化合物及び鉛系化合物からなる群より選択される少なくとも一種の金属化合物とを含有する。

Dielectric layer and manufacturing method of substrate for forming dielectric layer