Fujifilm Corporation

Kensuke Katagiri

Shin Tajiri

Toshinari Fujii

Masaya Nakayama

Hiroshige Nakamura

Tianhua Ouyang

Daisuke Hara

Akihiko Hase

Shinichi Nakahira

Makoto Sutou

Tsukasa Tokunaga

Katsuyuki Nukui

Nozomu Tonoike

A touch sensor that is excellent in contrast between black display and white display and is excellent in performance of suppressing a decrease in brightness of white display when the touch sensor is applied to an image display device and black and white display is made, as well as an image display device including the touch sensor. The touch sensor includes a substrate and a sensing electrode disposed on at least one surface side of the substrate. The substrate includes a visible light absorber, and the substrate has an internal absorbance Aof 0.03 or less and a parameter X of 30 mor more, the internal absorbance Aand the parameter X being calculated with Test X.

Touch sensor, touch panel, and image display device

A touch sensor with a pressure sensitive adhesive layer that is excellent in contrast between black display and white display and is excellent in performance of suppressing a decrease in brightness of white display when the touch sensor with a pressure sensitive adhesive layer is applied to an image display device and black and white display is made, as well as an image display device including the touch sensor with a pressure sensitive adhesive layer. The touch sensor with a pressure sensitive adhesive layer includes a touch sensor and a pressure sensitive adhesive layer disposed on one surface side of the touch sensor. The pressure sensitive adhesive layer includes a visible light absorber and has an internal absorbance Aof 0.03 or less and a parameter X of 20 mor more, the internal absorbance Abeing calculated with Test X.

Touch sensor with pressure sensitive adhesive layer, touch panel, and image display device

A conductive film includes a support, detection electrodes that are arranged on at least one main surface of the support, connection portions that are arranged on the main surface so as to be electrically connected to an external terminal, and lead-out wirings that are arranged on the main surface, electrically connected to the detection electrodes through one end portion thereof, and electrically connected to the connection portions through the other end portion thereof, in which the connection portions contain a binder and a metal component, and a content of the metal component in the connection portions that is determined by X-ray photoelectron spectroscopy is 0.5 to 10 at %.

Conductive film, touch panel, and method for manufacturing conductive film

A touch panel has a transparent substrate, a conductive film; a protective layer which is provided on the conductive film to protect the conductive film; and a display device which has a display unit. the conductive film includes: a transparent substrate; a detecting portion provided on at least one surface of the transparent substrate and is provided with a mesh pattern formed of thin metallic wires; and a peripheral wiring portion provided on at least one surface of the transparent substrate and is electrically connected to the detecting portion, a region where the detecting portion is provided is set as a first region and a region other than the first region is set as a second region in the transparent substrate, a wire width change region is present in at least a part of a boundary region including a boundary line between the first region and the second region.

Conductive film and touch panel

A method for producing a conductive film having a substrate and a conductive layer disposed on the substrate has a first step of forming a precursor layer on the substrate, the precursor layer including a metal component or its precursor, a water-insoluble polymer X having a cross-linking group, a water-insoluble polymer Y having a reactive group that reacts with the cross-linking group, and a water-soluble polymer Z different from polymer X and polymer Y; a second step of reacting the cross-linking group in the water-insoluble polymer X with the reactive group in the water-insoluble polymer Y; and a third step of forming the conductive layer by removing the water-soluble polymer Z.

Method for producing conductive film, conductive film, and touch panel

A conductive sheet for a touch panel having an active area includes a first conductive layer that is formed of a first thin metal wire disposed in the active area; and a second conductive layer that is formed of a second thin metal wire disposed to overlap with the first conductive layer in the active area, in which a mesh pattern is formed of the first thin metal wire and the second thin metal wire in a case where the conductive sheet is seen from a direction perpendicular to the active area, the mesh pattern is a random pattern, an average line width of the first thin metal wire and the second thin metal wire is 0.5 &#x3bc;m to 3.5 &#x3bc;m, and an opening ratio of the mesh pattern is (92.3+X&#xd7;1.6)% to 99.6%. X represents the average line width of the first and the second thin metal wire.

Conductive film for touch panel, touch panel, and touch panel-equipped display device

A method of designing a mesh pattern includes: a first step of tightly disposing a plurality of polygons having an arbitrary shape in an area to form a transparent active area; a second step of obtaining a circumcenter of each of the polygons; a third step of disposing one arbitrary point in each of the polygons to be positioned at a distance, which is less than &#xbd; a radius of a circumscribed circle of the polygon, from the circumcenter; a fourth step of forming a pattern to form second cells by connecting two arbitrary points corresponding to two polygons that share each of sides of the polygons; and a fifth step of forming a pattern to form first cells using the polygons, in which the polygons having a random shape are disposed in the first step, and/or the arbitrary point is randomly disposed in the third step.

Method of designing mesh pattern of conductive film for touch panel, method of manufacturing conductive film for touch panel, and conductive film for touch panel

The conductive film is arranged on the support and contains a binder and a metal portion, in which a position at which the contour line reaches the metal portion included in the thin conductive wire is set as an upper end position, and an average area ratio VA of the metal portion in a region ranging from the upper end position to 100 nm toward the support side is 1% or more and less than 50%, and a position at which the contour line reaches the thin conductive wire does not include the metal portion is set to a lower end position, and an average area ratio VM1 of the metal portion in a region ranging from a middle position between the upper end position and the lower end position to 50 nm toward the support side and to 50 nm toward the surface X side is 50% or more.

Conductive film, method of producing the same, and touch panel

External connection terminals in a conductive film and circuit-side terminals in a flexible circuit are respectively arranged in a first direction and are disposed through an anisotropic conductive membrane so as to at least partially overlap each other, the conductive film has detection electrodes and lead wires respectively connecting the detection electrodes to the external connection terminals, at least two external connection terminals have connection portions with the lead wires disposed at different locations, and, in each external connection terminal, an overlapping region between the circuit-side terminal and the anisotropic conductive membrane has ends in a second direction orthogonal to the first direction, and a width Wof a first end in the first direction being located on a connection portion side between the external connection terminal and the lead wire is smaller than a width Win the first direction of the external connection terminal overlapping the first end.

Terminal connection structure of conductive film for touch panel and touch panel

A transparent conductive film comprises a transparent substrate and a metal wiring portion formed thereon. A thin metal wire contained in an electrode portion in the metal wiring portion has a surface shape satisfying the condition of Ra/Sm&#x3e;0.01 &#x3bc;m and has a metal volume content of 35% or more. Ra represents an arithmetic average roughness in micrometers and is equal to or smaller than the thickness of a metal wiring located in a position where the surface roughness is measured. Sm represents an average distance between convex portions and is 0.01 &#x3bc;m or more.

Methods for producing a transparent conductive film for a touch panel

Transparent conductive film and method for producing transparent conductive film

A method for manufacturing of a conductive member include

Method for manufacturing conductive member, conductive member, and touch panel using same

The conductive sheet includes a support and a conductive portion which is disposed on the support and composed of thin conductive wires containing metal silver and gelatin, in which gelatin is substantially not contained between the thin conductive wires on the support, and a volume ratio (A/B) of a volume A of the metal silver to a volume B of the gelatin in the thin conductive wires is 0.3 to 10.0. In the conductive sheet, the occurrence of ion migration between thin conductive wires is further inhibited. A manufacturing method of the conductive sheet and a touch panel including the conductive sheet are also provided.

Conductive sheet, manufacturing method of conductive sheet, and touch panel

A manufacturing method of a conductive sheet includes: a step A of forming a silver halide-containing photosensitive layer, which contains silver halide, gelatin, and a polymer different from the gelatin and in which a mass ratio (Y/X) of a mass Y of the polymer to a mass X of the gelatin is equal to or greater than 0.1, on a support; a step B of forming conductive portions containing metal silver by performing exposure and then development treatment on the silver halide-containing photosensitive layer; and a step C of treating the support having the conductive portions with an oxidant which has a standard electrode potential of equal to or greater than +1.5 V and decomposes the gelatin.

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Kanagawa, Japan

Kensuke Katagiri