WO2013179955A1 - 静電容量式タッチパネル基板、及び表示装置 - Google Patents

静電容量式タッチパネル基板、及び表示装置 Download PDF

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Publication number
WO2013179955A1
WO2013179955A1 PCT/JP2013/064103 JP2013064103W WO2013179955A1 WO 2013179955 A1 WO2013179955 A1 WO 2013179955A1 JP 2013064103 W JP2013064103 W JP 2013064103W WO 2013179955 A1 WO2013179955 A1 WO 2013179955A1
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Prior art keywords
layer
touch panel
conductive layer
transparent electrode
reflective conductive
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PCT/JP2013/064103
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English (en)
French (fr)
Japanese (ja)
Inventor
中澤　伸介
憲彦 鰐田
中村　剛
Original Assignee
大日本印刷株式会社
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Application filed by 大日本印刷株式会社 filed Critical 大日本印刷株式会社
Priority to JP2013556913A priority Critical patent/JP5869007B2/ja
Priority to KR1020147028602A priority patent/KR102186807B1/ko
Priority to CN201380028127.8A priority patent/CN104350450B/zh
Publication of WO2013179955A1 publication Critical patent/WO2013179955A1/ja

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • 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
    • 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
    • G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate

Definitions

  • the present invention relates to a capacitive touch panel substrate and a display device.
  • the present invention relates to a capacitive touch panel substrate in which connection portions between transparent electrode units arranged in two directions are not conspicuous, and a display device including the same.
  • touch panels have been rapidly spread as position input devices used in combination with display panels in various display devices such as smartphones and tablet PCs (personal computers).
  • Various types of touch panels such as electromagnetic induction type and resistive film type, have been known for a long time, and they have been used for various purposes.
  • multi-touch multi-point simultaneous input
  • FIG. 11A shows a display in which a touch panel 30 including a conventional capacitive touch panel substrate 20 includes a display panel 40 that displays an image such as a liquid crystal display panel or an EL panel (electroluminescence panel), a cover glass, and the like.
  • FIG. 11 is an exploded plan view schematically showing an example of a conventional display device 200 having a configuration arranged between the front protection plate for a device 50.
  • FIG. 11B is a partially enlarged plan view focusing on the transparent electrode unit of the conventional capacitive touch panel substrate 20 in FIG. 11A
  • FIG. 11C is the view in FIG. It is the elements on larger scale which paid its attention to the connection part between transparent electrode units.
  • FIG. 12 is a partial enlarged cross-sectional view of the connecting portion taken along line CC in FIG.
  • first direction transparent electrode units 2a arranged in the Y direction which is the vertical direction in the drawing, and left and right in the drawing.
  • 2nd direction transparent electrode unit 2b arranged in the X direction which is a direction.
  • the Y direction is also referred to as a first direction
  • the X direction is also referred to as a second direction.
  • the conventional capacitive touch panel substrate 20 is an example in which the first direction transparent electrode unit 2a and the second direction transparent electrode unit 2b are formed on the same surface side of the translucent substrate 1 (Patent Literature). 1).
  • This form has an advantage that the relative positional accuracy between the first direction transparent electrode unit 2a and the second direction transparent electrode unit 2b can be improved.
  • the conventional capacitive touch panel substrate 20 illustrated in the above drawing is transparent in the first direction arranged in the first direction (Y direction in the drawing) on the surface of the first surface S1 of the translucent substrate 1.
  • a second direction (drawing) that is formed of the same material on the same surface, is located between the first direction transparent electrode units 2a and is located between the first direction connection portions 3a and intersects the first direction (Y direction).
  • the second direction transparent electrode units 2b arranged in the X direction) and the second direction transparent electrode units 2b are connected to each other, and the second direction connection is insulated from the first direction connection portion 3a via the insulating layer 4. Part 3b.
  • the second direction connecting portion 3b can be formed of the same material as the second direction transparent electrode unit 2b in the same manner as the first direction connecting portion 3a in that transparency can be obtained.
  • a form in which the wiring 7 made of material and the same material are simultaneously formed is known (see Patent Document 1).
  • the second direction connecting portion 3b is composed of a reflective conductive layer 5 made of a metal material, and the reflective conductive layer 5 is made of a metal layer such as a silver alloy. It exhibits silver metallic reflectivity.
  • the second direction connection portion 3b is formed of the same material as the second direction transparent electrode unit 2b, the second direction connection portion 3b is formed simultaneously with the first direction transparent electrode unit 2a and the second direction transparent electrode unit 2b due to the provision of the insulating layer 4. This is not possible and requires an additional step. However, if the second direction connecting portion 3b is formed simultaneously with the same material as the wiring 7 in the outer peripheral portion of the position detection region, the number of steps can be reduced accordingly.
  • the second direction connecting portion 3b is formed of the reflective conductive layer 5, unlike the transparent electrode, the second direction connecting portion 3b is reflected when exposed to the light L. May end up.
  • the phenomenon in which the reflective conductive layer 5 is conspicuous is conspicuous because the smaller the size of the touch panel, the closer the distance from the eyes of an observer who sees the display panel through the touch panel or the operator of the touch panel. Tend to be.
  • An object of the present invention is to provide a capacitive touch panel substrate in which a connection portion between transparent electrode units arranged in two directions intersecting each other is hardly noticeable. Moreover, it is providing a display apparatus provided with this.
  • a capacitive touch panel substrate has a first surface and a translucent substrate having a second surface opposite to the first surface; A plurality of first direction transparent electrode units arranged in a first direction on either one of the first surface and the second surface of the translucent substrate; A first direction connecting portion that is formed on the same surface with the same material as the first direction transparent electrode unit and connects the first direction transparent electrode units; The first direction transparent electrode unit is formed of the same material and on the same surface, is positioned between the first direction transparent electrode units and is positioned between the first direction connection portions and intersects the first direction.
  • the second direction transparent electrode units are connected to each other, the second direction connection part is insulated from the first direction connection part via an insulating layer, and includes a reflective conductive layer;
  • the area of the overlapping portion of the low reflective layer and the reflective conductive layer may be 30% or more of the area of the reflective conductive layer.
  • an outer contour shape of the low reflective layer when observed from a direction perpendicular to the one surface of the translucent substrate is an outer contour shape of the reflective conductive layer. May be included inside.
  • the outer peripheral portion of the position detection region in which the first direction transparent electrode unit and the second direction transparent electrode unit are arranged on the one surface of the translucent substrate may be provided, and the low reflective layer may be formed of the same material as the decorative portion.
  • the outer peripheral portion of the position detection region in which the first direction transparent electrode unit and the second direction transparent electrode unit are arranged on the one surface of the translucent substrate may have a wiring, and the reflective conductive layer may be made of the same material as the wiring.
  • the low reflective layer may be formed on the light transmissive substrate side with respect to the reflective conductive layer in the thickness direction.
  • the low reflective layer may be formed between the reflective conductive layer and the translucent substrate.
  • a surface opposite to the one surface of the translucent substrate may function as an input surface of the touch panel.
  • the low reflective layer may be formed on a side farther from the translucent substrate than the reflective conductive layer in the thickness direction. Good.
  • a display device includes a display panel and the above-described capacitive touch panel substrate disposed on the viewer side of the display panel.
  • connection portion between the transparent electrode units arranged in two directions intersecting each other can be made inconspicuous.
  • the capacitive touch panel substrate provided therein has the above-described effect.
  • FIG. 1A is a schematic plan view for explaining one embodiment (pre-formed connection portion) of a capacitive touch panel substrate according to the present invention
  • FIG. 1B is a diagram in FIG.
  • FIG. 6 is a partial enlarged cross-sectional view of a connecting portion taken along line CC of FIG.
  • FIG. 2A is a schematic plan view for explaining another embodiment (post-formed connection portion) of the capacitive touch panel substrate according to the present invention
  • FIG. 2B is a plan view of FIG. It is the elements on larger scale of the connection part in the CC line in the inside.
  • FIG. 3A is a schematic plan view for explaining another embodiment (preformed connection portion, through-hole connection) of the capacitive touch panel substrate according to the present invention
  • FIG. 4A is a schematic plan view for explaining another embodiment of the capacitive touch panel substrate according to the present invention (post-formed connection portion, through-hole connection), and FIG. It is the elements on larger scale of the connection part in the CC line in 4 (a).
  • FIG. 5A is a schematic plan view for explaining another embodiment of the capacitive touch panel substrate according to the present invention (the reflective conductive layer is partially exposed from the low reflective layer), and FIG. ) Is a partial enlarged cross-sectional view of the connection portion taken along line CC in FIG.
  • FIGS. 6A and 6B are plan views for explaining examples of the state of exposure of the reflective conductive layer in the form of FIG.
  • FIG.7 (a) is a top view explaining another embodiment (The low reflection layer is the same material as a decorating part) of the capacitive touch panel board
  • FIG.7 (b) is infrared.
  • FIG. 7C is a partial enlarged cross-sectional view showing a portion of the transmission window
  • FIG. 7C is a partial enlarged cross-sectional view of the connection portion corresponding to FIG.
  • FIG. 8 is a partially enlarged sectional view (corresponding to the configuration of FIG. 1B) showing another embodiment (with an overcoat layer) of the capacitive touch panel substrate according to the present invention.
  • FIG. 9 is a cross-sectional view illustrating an embodiment of a display device according to the present invention.
  • FIG. 10 is a cross-sectional view illustrating another embodiment of the display device according to the present invention.
  • FIG. 11A is an exploded plan view showing an example of a conventional display device including a touch panel using a conventional capacitive touch panel substrate, a display panel, and a front protective plate for the display device.
  • FIG. 11B is a partially enlarged plan view showing an example of the transparent electrode unit of the capacitive touch panel substrate
  • FIG. 11C is a partially enlarged plan view showing an example of the connecting portion between the transparent electrode units.
  • FIG. 12 is a partial enlarged cross-sectional view of the connecting portion taken along line CC in FIG.
  • the “front side” is a side where display light is emitted from the display panel 40 when the capacitive touch panel substrate 10 is used in combination with the display panel 40 in the capacitive touch panel substrate 10 or other components. Yes, it means the side of the observer who observes the display on the display panel 40.
  • front side means a side of an operator who operates the touch panel 30 using the capacitive touch panel substrate 10 in the capacitive touch panel substrate 10 or other components.
  • the “back side” means the side opposite to the “front side”, and means the side where the display light of the display panel 40 enters in the capacitive touch panel substrate 10 or other components.
  • first surface and the “second surface” is the “front side”, and which surface is the “front side” is arbitrary.
  • the surface on which the first direction transparent electrode unit 2a and the second direction transparent electrode unit 2b are provided is referred to as “one surface”. Whether this “one surface” is the “front side” or the “back side” depends on the usage related to the layer configuration of the capacitive touch panel substrate 10.
  • the capacitive touch panel substrate 10 is used such that the low reflective layer 6 is on the front side with respect to the reflective conductive layer 5.
  • Capacitive touch panel substrate 10 A capacitive touch panel substrate 10 according to the present invention will be described for each embodiment.
  • FIG. 1 (a) is a schematic plan view of a first embodiment of a capacitive touch panel substrate 10 according to the present invention
  • FIG. 1 (b) is a cross-sectional view taken along the line CC in FIG. 1 (a). It is a partial expanded sectional view.
  • This embodiment is a form of a structure obtained by forming the first direction transparent electrode unit 2a and the second direction transparent electrode unit 2b after forming the second direction connecting portion 3b first.
  • the capacitive touch panel substrate 10 of the embodiment shown in FIG. A translucent substrate 1; A plurality of first direction transparent electrode units 2a arranged in the first direction on one surface of the translucent substrate 1, A first direction connecting portion 3a that is formed on the same surface with the same material as the first direction transparent electrode unit 2a and connects the first direction transparent electrode units 2a;
  • the first direction transparent electrode unit 2a is formed of the same material and on the same surface, is located between the first direction transparent electrode unit 2a and is located between the first direction connection portions 3a and intersects the first direction.
  • the second direction transparent electrode units 2b are connected to each other, the second direction connection part 3b including the reflective conductive layer 5 insulated from the first direction connection part 2a via the insulating layer 4;
  • 1st surface S1 which shows the low reflectivity in which Y value in the Yxy color system using the standard light source C is 10% or less by the International Commission on Illumination CIE and which is the one surface of the translucent substrate 1 When viewed from a direction perpendicular to the reflective conductive layer 5, it overlaps at least a part of the reflective conductive layer 5.
  • the overlap between the reflective conductive layer 5 and the low reflective layer 6 is observed from a direction perpendicular to the first surface S1, which is the one surface of the translucent substrate 1.
  • the outer contour shape of the low reflective layer 6 is overlapped so as to include the outer contour shape of the reflective conductive layer 5 inside. In other words, the low reflective layer 6 overlaps 100% of the area of the reflective conductive layer 5, that is, the entire region.
  • the first surface S1 which is one surface of the translucent substrate 1
  • the capacitive touch panel substrate 10 is used in this cross-sectional view with the second surface S2 on the lower side of the drawing as the front side toward the viewer V of the display panel who is also the operator of the touch panel. It is a form.
  • the Y direction is the first direction
  • the X direction is the second direction
  • the first direction and the second direction intersecting with each other are not necessarily orthogonal to each other.
  • FIG. 1A shows a plurality of first direction transparent electrode units 2a arranged in the first direction and a plurality of second direction transparents arranged in the second direction within the position detection region Ap. Not all of the electrode units 2b are drawn. Focusing on the portion of the second direction connecting portion 3b that connects the second direction transparent electrode units 2b, only one second direction connecting portion 3b and its periphery are depicted as representatives. Further, only one wiring 7 formed on the outer periphery of the position detection region Ap is schematically drawn as being connected to the first direction transparent electrode unit 2a, and is connected to the second direction transparent electrode unit 2b. Illustration of the wiring 7 is omitted.
  • the first direction transparent electrode extended portion 7a which is simultaneously patterned on the same surface with the same material as the first direction transparent electrode unit 2a so as to overlap and connect to the wiring 7 in the outer peripheral portion of the position detection region Ap. Is provided on the outer periphery of the position detection area Ap.
  • FIG. 1A is a plan view of the capacitive touch panel substrate 10 as viewed from the “back side” on the side where the reflective conductive layer 5, the low reflective layer 6 and the like are formed.
  • the insulating layer 4, the reflective conductive layer 5 and the low reflective layer 6 formed on the other side of the transparent layer such as the first direction transparent electrode unit 2a and the second direction transparent electrode unit 2b are provided. If the transparent layer is opaque, the layer is originally hidden, so that it is drawn with a broken line. However, the display with broken lines is only for easy understanding, and does not accurately represent the layered positional relationship.
  • the low reflection layer 6 has an outer contour shape when observed from a direction perpendicular to the first surface S1 which is the one surface of the translucent substrate 1.
  • the outline shape may be included on the inside, and the same shape may be completely overlapped.
  • the outer contour shape of the low reflective layer 6 is a rectangular shape, and the outer contour shape of the reflective conductive layer 5 is also a rectangular shape.
  • the outer contour shape of the low reflective layer 6 is larger than the outer contour shape of the reflective conductive layer 5.
  • the outer contour shape of the low reflective layer 6 protrudes outward with respect to the outer contour shape of the reflective conductive layer 5 around the entire periphery thereof.
  • the outer contour shape of the low reflection layer 6 is arbitrary and is not limited to a rectangle. The same applies to the reflective conductive layer 5.
  • the outer contour shape of the low reflective layer 6 means that the alignment accuracy has some allowance, and the outer contour shape of the reflective conductive layer 5 is 0.5 ⁇ m or more, preferably 1 ⁇ m or more on the entire outer periphery. More preferably, it is 2 ⁇ m or more, more preferably 4 ⁇ m or more, and it is preferable to have a large shape protruding. However, even if it protrudes, it is preferably 100 ⁇ m or less, preferably 30 ⁇ m or less, more preferably 10 ⁇ m or less. This is because if the protrusion is too large, the display of the display panel viewed through the touch panel is blocked by the low reflective layer 6 and the display quality may be adversely affected.
  • the low reflective layer 6 is, in the thickness direction, the side of the transparent substrate 1 with respect to the reflective conductive layer 5, more specifically, the reflective conductive layer 5 and the transparent substrate 1. It is the form formed between.
  • the “translucent substrate 1 side with respect to the reflective conductive layer 5” means that the low reflective layer 6 is on the other surface of the translucent substrate 1, that is, the second surface S2.
  • the form formed is also included.
  • the operator who operates the touch panel using the capacitive touch panel substrate 10, which is the display panel 40 to which the capacitive touch panel substrate 10 is applied is also the observer V to observe, this observer V is set as the structure which has the low reflection layer 6 in the near side from the reflective conductive layer 5.
  • Translucent substrate 1 A known material can be used for the translucent substrate 1 and is typically a glass plate, but may be a resin material such as a polyester resin.
  • First Direction Transparent Electrode Unit 2a First Direction Transparent Electrode Unit 2a
  • Second Direction Transparent Electrode Unit 2b First Direction Connection Portion 3a
  • a transparent conductive thin film such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), AZO (Aluminum Zinc Oxide) or the like is patterned by a photolithography method or the like. What was formed can be used.
  • the second direction connection portion 3 b includes at least the reflective conductive layer 5.
  • the reflective conductive layer 5 known materials and forming methods such as metal wiring materials other than the transparent conductor thin film can be employed.
  • the reflective conductive layer 5 can be made of metal (including alloys thereof) such as silver, gold, copper, chromium, platinum, aluminum, palladium, and molybdenum.
  • a metal layer of an alloy also referred to as APC
  • the reflective conductive layer 5 formed of these metal materials exhibits reflectivity peculiar to metals and is usually opaque. For this reason, it is easy to stand out by reflecting light, so that the low reflection layer 6 makes it difficult to stand out.
  • the reflectivity of the reflective conductive layer 5 indicates that the reflectance is 50% or more on average in the visible light region (380 to 780 nm). For example, in general, silver falls to 90% or more, aluminum falls to 80% or more, and gold falls to nearly 50% in the short wavelength region, but on average shows 50% or more.
  • the reflective conductive layer 5 is not limited to a metal material, and may be a conductive polymer as long as it exhibits reflectivity, for example.
  • the reflective conductive layer 5 is formed as a metal layer patterned by a photolithography method using a silver alloy (also referred to as APC) made of silver, palladium, and copper.
  • APC silver alloy
  • the reflective conductive layer 5 and the wiring 7 are formed of the same material and are simultaneously formed on the same surface, specifically, the first surface S1 which is one surface of the translucent substrate 1. Is formed.
  • the dimensions of the outer shape of the reflective conductive layer 5 are, for example, a rectangle having a width of 5 to 20 ⁇ m and a length of 20 to 500 ⁇ m in the present embodiment shown in FIG.
  • the width is a dimension in the first direction (Y direction in the drawing), and the length is a dimension in the second direction (X direction in the drawing).
  • the second direction connection portion 3 b further includes a transparent conductive thin film such as ITO described above, and the transparent conductive thin film is laminated so as to be connected to the reflective conductive layer 5. It may be a structured.
  • the insulating layer 4 is an electrically insulating layer, and known materials and forming methods can be employed.
  • the insulating layer 4 can be patterned by, for example, a photolithography method using an ultraviolet curable acrylic resin as a resin layer.
  • the insulating layer 4 may be either transparent or opaque, but is preferably transparent. This is because the transparency of the capacitive touch panel substrate 10 is not lowered. In the present embodiment, the insulating layer 4 is formed as a transparent layer.
  • the low reflective layer 6 is a layer exhibiting low reflectivity with a Y value in the Yxy color system according to JIS-Z8701 using the standard light source C by the International Commission on Illumination CIE of 10% or less. Of course, the measurement is performed from the side where the surface farther from the reflective conductive layer 5 out of the two layer surfaces of the low reflective layer 6 is observed.
  • the low reflective layer 6 also exhibits light shielding (opacity) at the same time. This is because the reflected light from the reflective conductive layer 5 can be reduced. Therefore, the low reflective layer 6 can also be referred to as a “hidden layer” that exhibits low reflectivity and light shielding properties and conceals the reflective conductive layer 5.
  • the low reflective layer 6 can function as a layer for making the reflective conductive layer 5 inconspicuous.
  • the light-shielding property is 10% or less (1 or more at the optical density OD) in terms of transmittance, more preferably 1% or less (optical). Density OD2.0 or more), and more preferably 0.01% or less (optical density OD4.0 or more) in terms of transmittance.
  • the low reflection layer 6 can be patterned by a photolithography method as a layer having a dark color such as black containing a black pigment such as carbon black in a resin binder made of a cured curable resin.
  • a photosensitive resin such as an ultraviolet curable acrylic resin can be used.
  • a pattern is formed by a photolithography method using an ultraviolet curable acrylic resin containing a low reflection layer 6 and carbon black.
  • a layer that exhibits black using a plurality of chromatic pigments such as red, yellow, blue, and green other than carbon black may be used.
  • black may be formed using three color pigments of red, yellow, and blue.
  • the dark color means a color other than black, such as dark blue or dark green, which has a low lightness and the Y is 10% or less.
  • the coloring pigment used for the low reflection layer 6 one or more kinds such as black pigment, white pigment, red pigment, yellow pigment, blue pigment, green pigment, purple pigment can be used.
  • the low reflective layer 6 may be formed of an inorganic material that itself exhibits a dark color, such as chromium oxynitride.
  • the low reflective layer 6 is preferably electrically insulating. This is because, if the low reflection layer 6 is conductive, it is difficult to ensure the insulation of the portion that requires insulation depending on the combination of the layer configuration and the pattern shape. For example, although there is no problem in the present embodiment shown in FIG. 1, it is difficult to ensure insulation between the second direction transparent electrode unit 2b and the first direction connection portion 3a in the second embodiment of FIG. .
  • the wiring 7 can be made of metal (including alloys thereof) such as silver, gold, copper, chromium, platinum, aluminum, palladium, and molybdenum.
  • a metal layer of an alloy also referred to as APC
  • APC an alloy made of silver, palladium, and copper, which is formed by sputtering and then patterned by photolithography, can be used.
  • the wiring 7 is formed as a metal layer by a silver alloy (also referred to as APC) made of silver, palladium, and copper. That is, in the present embodiment, the reflective conductive layer 5 and the wiring 7 are formed of the same material, and are the same surface, specifically, the first surface that is one surface of the translucent substrate 1. It is formed simultaneously with S1.
  • APC silver alloy
  • the capacitive touch panel substrate 10 as described above can be manufactured as follows.
  • the low reflection layer 6 is formed on the first surface S1 which is one surface of the translucent substrate 1.
  • the reflective conductive layer 5 as the second direction connecting portion 3b and the wiring 7 are simultaneously patterned with the same material.
  • the insulating layer 4 is patterned.
  • the 1st direction transparent electrode unit 2a, the 2nd direction transparent electrode unit 2b, and the 1st direction connection part 3a are pattern-formed simultaneously with the same material. In this way, the capacitive touch panel substrate 10 can be manufactured.
  • the low reflective layer 6 hides all of the reflective conductive layer 5 used in the connection portion between the transparent electrode units. Since it has a structure, it is possible to effectively make the connection portion inconspicuous.
  • the reflective conductive layer 5 is formed of the same material as the wiring 7, so the reflective conductive layer 5 is provided in the same process as the wiring 7 without increasing the number of processes. Therefore, a structure in which the reflective conductive layer 5 is not conspicuous can be realized without cost.
  • FIG. 2A is a schematic plan view of a second embodiment of the capacitive touch panel substrate 10 according to the present invention
  • FIG. 2B is a cross-sectional view taken along the line CC in FIG. It is a partial expanded sectional view.
  • This embodiment is a form of a structure obtained by forming the second direction connecting portion 3b after first forming the first direction transparent electrode unit 2a and the second direction transparent electrode unit 2b.
  • the capacitive touch panel substrate 10 of the embodiment shown in FIG. 2 is the same as the first embodiment shown in FIG. 1 except for the following points. Therefore, the description of the same part is omitted.
  • the capacitive touch panel substrate 10 as described above can be manufactured as follows.
  • the low reflection layer 6 is formed on the first surface S1 which is one surface of the translucent substrate 1.
  • the 1st direction transparent electrode unit 2a, the 2nd direction transparent electrode unit 2b, and the 1st direction connection part 3a are pattern-formed simultaneously with the same material.
  • the insulating layer 4 is patterned.
  • the reflective conductive layer 5 as the second direction connecting portion 3b and the wiring 7 are simultaneously patterned with the same material. In this way, the capacitive touch panel substrate 10 can be manufactured.
  • the pattern formation of the reflective conductive layer 5 and the wiring 7 is performed after the simultaneous pattern formation for the first direction transparent electrode unit 2a, the second direction transparent electrode unit 2b, and the first direction connection portion 3a. Therefore, the material of the reflective conductive layer 5 and the wiring 7 is also advantageous in that it is not necessary to consider the resistance to the etching solution when forming the pattern such as the first direction transparent electrode unit 2a.
  • the material of the reflective conductive layer 5 and the wiring 7 is a wiring material having a three-layer structure of molybdenum (Mo), aluminum (Al), and molybdenum (Mo) (referred to as MAM). Can also be adopted.
  • the low reflective layer 6 hides all of the reflective conductive layer 5 used in the connection portion between the transparent electrode units. Since it has a structure, it is possible to effectively make the connection portion inconspicuous.
  • the reflective conductive layer 5 is formed of the same material as the wiring 7, so the reflective conductive layer 5 is provided in the same process as the wiring 7 without increasing the number of processes. Therefore, a structure in which the reflective conductive layer 5 is not conspicuous can be realized without cost.
  • FIG. 3 (a) is a schematic plan view of a third embodiment of the capacitive touch panel substrate 10 according to the present invention
  • FIG. 3 (b) is a cross-sectional view taken along the line CC in FIG. 3 (a). It is a partial expanded sectional view.
  • the second direction connecting portion 3b is formed first, and then the insulating layer 4 having the through holes 4h is formed over the entire position detection region Ap.
  • the first direction transparent electrode unit 2a is a structure obtained by forming the second direction transparent electrode unit 2b and connecting the second direction transparent electrode unit 2b with the second direction connecting portion 3b through the through hole 4h.
  • the capacitive touch panel substrate 10 of the embodiment shown in FIG. 3 is the same as the first embodiment shown in FIG. 1 except for the following points. Therefore, the description of the same part is omitted.
  • the insulating layer 4 is formed not only in the connection portion but in the entire position detection region Ap, the portion of the through hole 4h that connects the second direction transparent electrode unit 2b and the second direction connection portion 3b is Points that are not formed.
  • the reflective conductive layer 5 as the second direction connecting portion 3b is connected to the second direction transparent electrode unit 2b at the through hole 4h.
  • the low reflective layer 6 hides all of the reflective conductive layer 5 used in the connection portion between the transparent electrode units. Since it has a structure, it is possible to effectively make the connection portion inconspicuous.
  • the reflective conductive layer 5 is formed of the same material as the wiring 7, so the reflective conductive layer 5 is provided in the same process as the wiring 7 without increasing the number of processes. Therefore, a structure in which the reflective conductive layer 5 is not conspicuous can be realized without cost.
  • FIG. 4 (a) is a schematic plan view of a fourth embodiment of the capacitive touch panel substrate 10 according to the present invention
  • FIG. 4 (b) is a cross-sectional view taken along the line CC in FIG. 4 (a). It is a partial expanded sectional view.
  • the insulating layer 4 having the through holes 4h is formed over the entire position detection region Ap. This is a structure obtained by forming the second direction connecting portion 3b and connecting to the second direction transparent electrode unit 2b through the through hole 4h.
  • the capacitive touch panel substrate 10 of the embodiment shown in FIG. 4 is the same as the second embodiment shown in FIG. 2 except for the following points. Therefore, the description of the same part is omitted.
  • the insulating layer 4 is formed not only in the connection portion but in the entire position detection region Ap, the portion of the through hole 4h that connects the second direction transparent electrode unit 2b and the second direction connection portion 3b is Points that are not formed.
  • the reflective conductive layer 5 as the second direction connecting portion 3b is connected to the second direction transparent electrode unit 2b at the through hole 4h.
  • the low reflective layer 6 hides all of the reflective conductive layer 5 used in the connection portion between the transparent electrode units. Since it has a structure, it is possible to effectively make the connection portion inconspicuous.
  • the reflective conductive layer 5 is formed of the same material as the wiring 7, so the reflective conductive layer 5 is provided in the same process as the wiring 7 without increasing the number of processes. Therefore, a structure in which the reflective conductive layer 5 is not conspicuous can be realized without cost.
  • FIG. 5 (a) is a schematic plan view of a fifth embodiment of the capacitive touch panel substrate 10 according to the present invention
  • FIG. 5 (b) is a cross-sectional view taken along the line CC in FIG. 5 (a). It is a partial expanded sectional view.
  • the low reflective layer 6 overlaps a part of the reflective conductive layer 5, and as a result, the reflective conductive layer 5 appears to be partially exposed from the low reflective layer 6.
  • the capacitive touch panel substrate 10 of the embodiment shown in FIG. 5 is the same as the first embodiment shown in FIG. 1 except for the following points. Therefore, the description of the same part is omitted.
  • the low reflective layer 6 overlaps with a part of the reflective conductive layer 5, and the reflective conductive layer 5 appears to be partially exposed from the low reflective layer 6.
  • the low reflective layer 6 overlaps the entire area of the reflective conductive layer 5, and the outer contour shape of the low reflective layer 6 is inside the outer contour shape of the reflective conductive layer 5. It was an included form. For this reason, the reflective conductive layer 5 was completely covered with the low reflective layer 6 in the entire region, and the reflective conductive layer 5 was not visible.
  • the reflective conductive layer 5 In terms of making the reflective conductive layer 5 inconspicuous, it is preferable that the reflective conductive layer 5 overlaps the low reflective layer 6 in the entire area, but even if the reflective conductive layer 5 is somewhat visible. In practical use, if the adverse effect on the display quality by the reflective conductive layer 5 is slight, or if the display quality can be lowered by the reflective conductive layer 5, the reflective conductive layer 5 is acceptable. However, it is also possible to have a configuration in which a portion is exposed from the low reflection layer 6.
  • the low reflection layer 6 is shielded from the display screen, it is preferable that the low reflection layer 6 is as small as possible in view of adverse effects on display quality. That is, when the adverse effect on the display quality due to the low reflective layer 6 itself is taken into consideration, the reflective conductive layer 5 may be partially exposed from the low reflective layer 6. That is, from the viewpoint of completely hiding the reflective conductive layer 5, the smallest shape of the low reflective layer 6 is the same shape and the same size as the reflective conductive layer 5. However, if the generation of some exposed portions E is allowed, the area and exposure of the low reflective layer 6 are smaller when the outer contour shape of the low reflective layer 6 is smaller than the outer contour shape of the reflective conductive layer 5. The total area of the part E can be reduced even if a slight positional shift occurs. For this reason, the element which interrupts a display screen can be made small.
  • the alignment accuracy is not sufficient, and a part of the reflective conductive layer 5 is exposed from the low reflective layer 6 due to a positional shift in the relative positional relationship between the reflective conductive layer 5 and the low reflective layer 6. In some cases, it can be considered.
  • the reflective conductive layer 5 is partially exposed from the low reflective layer 6 under such circumstances.
  • the reflective conductive layer 5 is separated from the low reflective layer 6.
  • a situation in which an exposed portion E that is partially exposed has occurred is shown.
  • the exposed portion E is visible from the observer V.
  • This figure shows the case where the reflective conductive layer 5 is displaced in the extending direction of the line (X-axis direction), but the relative positional displacement between the reflective conductive layer 5 and the low reflective layer 6 is shown.
  • the relationship may be displaced in the line width direction, or in both the line extending direction and the line width direction of the reflective conductive layer 5. The position may be displaced.
  • FIG. 6 is a diagram exemplifying the case of two directions with respect to the direction of relative positional deviation between the reflective conductive layer 5 and the low reflective layer 6.
  • 6A shows the case of the line extending direction of the reflective conductive layer 5 (X-axis direction in the figure), and FIG. 6B shows the line width of the line of the reflective conductive layer 5. The case of the direction (Y-axis direction in the figure) is shown.
  • a direction indicated by a double-headed arrow in FIGS. 6A and 6B is a direction of relative displacement between the reflective conductive layer 5 and the low reflective layer 6.
  • FIG. 6A corresponds to the positional deviation relationship of FIG.
  • FIG. 6A shows a state in which the low reflective layer 6 is displaced in the right direction of the drawing in the X-axis direction with respect to the reflective conductive layer 5, and an exposed portion E is generated on the left side of the reflective conductive layer 5.
  • FIG. 6B shows a state in which the low reflective layer 6 is displaced in the Y-axis direction in the downward direction of the drawing with respect to the reflective conductive layer 5, and an exposed portion E is generated above the reflective conductive layer 5.
  • the reflective conductive layer 5 and the low reflective layer 6 are not hatched inside the outer contour shape, but are hatched only on the exposed portion E. Further, the outline of the reflective conductive layer 5 hidden by the low reflective layer 6 is indicated by a broken line.
  • the low reflective layer 6 is the reflective conductive layer. 5 is 30% or more, preferably 50% or more, more preferably 70% or more, and further preferably 80% or more of the area of the reflective conductive layer 5. This is because if the area ratio is less than the above value, the display quality may be deteriorated.
  • the line of the reflective conductive layer 5 The area of the exposed portion E where the reflective conductive layer 5 is exposed from the low reflective layer 6 when it protrudes in the direction (X-axis direction in the drawing) and when it protrudes in the line width direction (Y-axis direction in the drawing) The area ratio to the area of the reflective conductive layer 5 is different.
  • the adverse effect on the display quality due to the exposed portion E of the reflective conductive layer 5 is increased when it is displaced in the line width direction shown in FIG. 6B. Even in such a situation, it is possible to suppress a decrease in display quality by setting the area ratio concealed by the low reflective layer 6 to the above value or more.
  • the line width of the reflective conductive layer 5 is 15 ⁇ m
  • the area ratio of the total length of the line is 3 ⁇ m in the line width direction and is not concealed by the low reflective layer 6.
  • ⁇ (15 ⁇ m ⁇ 3 ⁇ m) / 15 ⁇ m ⁇ ⁇ 100 80%.
  • the reflective conductive layer 5 is formed of the same material as the wiring 7, so the reflective conductive layer 5 is provided in the same process as the wiring 7 without increasing the number of processes. Therefore, a structure in which the reflective conductive layer 5 is not conspicuous can be realized without cost.
  • the alignment accuracy can be relaxed, the manufacturing can be facilitated while the adverse effect on the display quality is suppressed, and the cost can be further reduced.
  • the capacitive touch panel substrate 10 of the present invention can take other forms besides the above-described form. Some of these will be described below.
  • the form in which the reflective conductive layer 5 is partially exposed from the low reflective layer 6 is not limited to the modified form of the first embodiment.
  • the form in which the reflective conductive layer 5 is partially exposed from the low reflective layer 6 is a modification of the second embodiment, the third embodiment, the fourth embodiment, or other forms such as a modification described later. It is also possible.
  • the exposed portion E is used as a reflecting portion
  • the exposed portion E which is a portion of the reflective conductive layer 5 exposed from the low reflective layer 6, is actively used as a reflective portion. Also good.
  • a gun-type light controller is arranged at an arbitrary position in the display screen of a display device in which a touch panel including the capacitive touch panel substrate 10 is arranged on the viewer side of the display panel.
  • Reflection position detecting means for detecting the instructed position in the display screen by receiving the reflected light reflected by the reflection part of the exposed part E by the light emitted from the gun-type light controller.
  • the reflection position detection means such as a two-dimensional image sensor such as a CCD capable of photographing the display screen
  • the reflection position detection means and the reflection portion by the exposed portion E of the capacitive touch panel substrate 10 From this, it is possible to configure the optical non-contact indication position detecting means to be a shooting game machine. Note that when infrared light is used as irradiation light, discrimination from visible light can be facilitated.
  • the low reflective layer 6 is not provided, but the reflected light intensity can be increased.
  • the reflective conductive layer 5 is exposed to light from the surrounding environment. Becomes more noticeable.
  • the basic electrical performance of the reflective conductive layer 5 as the original electrical connection means, Reflected light intensity as one component of the optical non-contact indication position detecting means, difficulty of conspicuous of the reflective conductive layer 5 as display screen quality, and alignment accuracy between the reflective conductive layer 5 and the low reflective layer 6 It is possible to more easily balance various performances such as manufacturing easiness and cost related to the above, and the degree of freedom of design can be increased.
  • the reflection part as a component of the optical non-contact indication position detecting means is provided independently of the reflective conductive layer 5, the number of processes can be increased and the cost can be increased.
  • the reflective portion is formed of the same material as that of the reflective conductive layer 5 and can be provided without increasing the number of steps.
  • the application of the exposed portion E to the reflecting portion as one component of the optical non-contact indication position detecting means in the display screen can be performed by indicating an arbitrary position in the display screen in addition to the game machine application.
  • the present invention can also be used as a controller for performing operations such as enlargement or reduction of a screen centering on a portion.
  • the exposed portions E when the exposed portions E are regularly arranged, the exposed portions E can function as grid lines in the display screen.
  • the use of the function as one component of the optical non-contact indication position detecting means is that the operator needs to touch the display screen in a usage application that is used separately from the touch panel function. In a usage where both functions are used together, the operator performs it when the user is at a position where the hand can reach the display screen.
  • the capacitive touch panel substrate 10 can have a decoration 8 on the outer periphery of the position detection region Ap.
  • the decoration unit 8 is a touch panel including the capacitive touch panel substrate 10 and a display device using the touch panel, the wiring 7 and the control circuit positioned on the outer peripheral portion of the position detection area Ap are connected to the viewer V of the display device. Or it is a part which hides so that it may not be visible from the operator of a touch panel, and does not impair an external appearance, and expresses arbitrary designs.
  • the capacitive touch panel substrate 10 has the decorative portion 8 on the outer periphery of the position detection area Ap, so that the front protective plate for a display device such as a cover glass in the conventional display device 200 illustrated in FIG. 50, and can also be used as the front protective plate 50 for a display device.
  • the capacitive touch panel substrate 10 having a configuration also used as the display device front protective plate 50 can also be referred to as a display device front protective plate integrated touch panel substrate.
  • the surface S2) functions as an input surface (touch surface, contact surface) of the touch panel where an external conductor such as an operator's finger contacts (or approaches) the touch panel sensor and position input is performed.
  • the electrostatic capacitance type touch panel substrate 10 is combined with the front protective plate 50 for the display device and integrated, thereby further reducing the number of parts and reducing the thickness.
  • the low reflective layer 6 is It can be formed of the same material as the decorative portion 8.
  • the low reflective layer 6 is preferably formed of the same material as the decorative portion 8. Since the low reflective layer 6 is formed of the same material as the decorative portion 8, the low reflective layer 6 can be provided in the same process as the decorative portion 8 without increasing the number of steps. This is because it is possible to realize a structure that does not stand out without cost.
  • the low reflection layer 6 and the decorative portion 8 are formed on the same surface of the translucent substrate 1 (see FIG.
  • FIG.7 (c) has shown the example in which the low reflection layer 6 of the form of FIG. 1 was formed simultaneously with the decoration part 8
  • the low reflection layer 6 of another form is the decoration part 8 And may be formed simultaneously.
  • the decoration unit 8 has at least a light shielding layer 8a having a light shielding property in order to hide the wiring 7 and the like, but usually also has an infrared transmission window 8b and the like.
  • the infrared transmission window 8b is necessary to prevent malfunction of the touch panel when the mobile phone is put on the ear during a call, and from the viewpoint of extinguishing the display panel and extending the battery life. It is provided in the part of the infrared sensor provided as a human sensor that senses.
  • the constituent elements of the decorative portion 8 formed of the same material as the low reflective layer 6 include, for example, a light shielding layer 8a and an infrared transmission layer 8bL formed in the infrared transmission window 8b.
  • the light-shielding property of the light-shielding layer 8a depends on the required specifications and the expression color, but in terms of transmittance, it is at most 3% (optical density OD is 1.5 or more), more preferably the transmittance is 1% or less. (Optical density OD2.0 or higher), more preferably 0.01% or lower (optical density OD4.0 or higher) in transmittance is desirable. This is because if the transmittance exceeds the above, parts to be hidden may be seen.
  • the light shielding layer 8a can be formed by a known material and a forming method.
  • the light shielding layer 8a can be formed from a layer containing a color pigment in a resin binder made of a cured product of a curable resin.
  • a curable resin a photosensitive resin such as an ultraviolet curable acrylic resin can be used.
  • the color pigment used for the light shielding layer 8a is not particularly limited as long as it is suitable for the color expressed by the light shielding layer 8a.
  • a colored pigment a black pigment, a white pigment, a red pigment, a yellow pigment, a blue pigment, a green pigment, a purple pigment, or the like can be used.
  • the color pigments may be used alone, or a plurality of types of color pigments of the same type or different colors may be used.
  • the color exhibited by the light-shielding layer 8a is not a reflective color such as white but a dark color such as black. Moreover, black is also a kind of preferable color as a design color expressed by the decorative portion 8.
  • the decorative portion 8 has an infrared transmission window that has a light shielding property for visible light and a light transmittance for infrared light.
  • An infrared transmission layer 8bL may be provided in a portion 8b.
  • the light shielding layer 8a is black, if carbon black is used as a black pigment, it becomes light shielding not only for visible light but also for infrared light. This is because the transmissive layer 8bL may be required.
  • the transmittance of the infrared transmission window 8b with respect to infrared light depends on required specifications, expression color, and infrared components such as an infrared sensor applied to the infrared transmission window 8b. It is sufficient that the transmittance at 70 is 70% or more.
  • the infrared region where the transmittance is 70% or more is not necessarily a region of 780 nm or more. For example, a region of 850 nm or more can function sufficiently. Note that the upper limit of the infrared region where the transmittance is 70% or more should satisfy the near infrared region, usually up to 1300 nm.
  • the light shielding property of the infrared transmission window 8b with respect to visible light depends on the required specifications and the expression color. However, since the infrared transmission window 8b is usually small in spot, the infrared transmission window 8b and the light shielding layer are not necessarily used. It is not necessary to match the light shielding level of 8a. For this reason, as an example, the light shielding property with respect to visible light of the infrared transmission window 8b is 50% or less (0.2 or more in optical density OD) in terms of transmittance, more preferably transmittance. It is desirably 25% or less (optical density OD 0.6 or more), more preferably 10% or less (optical density OD 1.0 or more) in terms of transmittance.
  • the infrared transmission window 8b has a transmittance of 70% or more at a wavelength of 850 nm to 1300 nm for the infrared light region, and a transmittance of 10% or less for the visible light region.
  • the transmittance is not an average value but a value for each wavelength.
  • the infrared transmission layer 8bL is usually formed in a similar color to the light shielding layer 8a in order to make the presence of the infrared transmission window 8b inconspicuous.
  • the infrared transmission layer 8bL exhibits a light shielding property with respect to visible light and a transparency with respect to infrared light.
  • the color exhibited by the infrared transmission layer 8bL is not a reflective color such as white but a dark color such as black. Moreover, black is also a kind of preferable color as a design color expressed by the decorative portion 8.
  • the infrared transmission layer 8bL does not contain a black pigment such as carbon black, but contains a plurality of types of chromatic color pigments having different colors, for example, red, yellow, and blue, thereby providing a dark color such as black. It can be formed as an expressed layer.
  • the low reflection layer 6 By forming the low reflection layer 6 with the same material as the infrared transmission layer 8bL, the low reflection layer 6 can be provided in the same process as the infrared transmission layer 8bL of the decorative portion 8 without increasing the number of steps.
  • the structure in which the reflective conductive layer 5 is not conspicuous can be realized without cost.
  • the formation order of the light shielding layer 8a and the wiring 7 with respect to the translucent substrate 1 is the same as that when the capacitive touch panel substrate 10 is used.
  • the front and back directions with respect to the observer V or the operator are regulated, but the transparent substrate 1 of the infrared transmission layer 8bL and the wiring 7 is opposed to each other.
  • the order of formation is not restricted as in the case of the light shielding layer 8a.
  • the infrared transmission layer is formed in the infrared transmission window 8b portion of the light shielding layer 8a.
  • 8bL is formed or, conversely, (b) after the low reflection layer 6 and the light shielding layer 8a are simultaneously formed, the infrared transmission layer 8bL is formed in the infrared transmission window 8b portion of the light shielding layer 8a.
  • the wiring 7 can be formed on the light shielding layer 8a.
  • the form in which the low reflection layer 6 is formed of the same material as the infrared transmission layer 8bL has an advantage that the degree of freedom in product design is not hindered.
  • the capacitive touch panel substrate 10 can include a transparent overcoat layer 9 as illustrated in FIG. 8.
  • This figure shows an example in which the overcoat layer 9 is formed as the uppermost layer on the surface of the first surface S1 which is one surface of the translucent substrate 1.
  • the overcoat layer 9 may be added to other forms. Reliability can be improved by the overcoat layer 9.
  • the overcoat layer 9 known materials and forming methods can be employed.
  • the overcoat layer 9 is preferably a transparent resin, preferably a curable resin in terms of heat resistance, and a thermosetting epoxy resin, an ultraviolet curable acrylic resin, or the like can be used. When forming a pattern, it can be formed by photolithography.
  • the display device according to the present invention is a display device including at least the display panel and the above-described capacitance type touch panel substrate 10 disposed on the viewer side of the display panel.
  • two typical modes will be described as examples.
  • a display device 100 according to the present invention illustrated in FIG. 9 is for a display panel 40, a touch panel 30 including the above-described capacitive touch panel substrate 10 on the viewer V side of the display panel 40, and a display device such as a cover glass.
  • This is a configuration example including at least the front protective plate 50 in this order.
  • the display panel 40 is typically a liquid crystal display panel or an electroluminescence (EL) panel, but may be an electronic paper panel, a display device using a cathode ray tube, or various known display panels.
  • EL electroluminescence
  • the touch panel 30 includes a capacitive touch panel substrate 10 and further includes known necessary components such as a control circuit and a connector for realizing a touch panel function.
  • the capacitive touch panel substrate 10 has the low reflective layer 6 relative to the reflective conductive layer 5.
  • Any configuration may be used as long as it is arranged in a direction closer to the observer V. That is, which of the reflective conductive layer 5 and the low reflective layer 6 is in a position far from the translucent substrate 1 in the thickness direction may be any, and the first surface of the translucent substrate 1 is the first surface.
  • the first surface S1 can be arranged in the direction of the front side in addition to the direction of the back side.
  • adopted for the front-surface protective plate 50 for display apparatuses for example, uses glass plates, such as chemically strengthened glass, and resin plates, such as an acrylic resin, as a transparent base material, The center part of this base material As the display area, it is possible to adopt an opaque decoration portion 8 decorated with an arbitrary color and pattern such as black on the outer periphery of the display area.
  • the display unit front protective plate 50 may be configured such that the decoration part 8 is omitted. possible.
  • the display device 100 according to the present invention illustrated in FIG. 10 includes the display panel 40 and the above-described capacitive touch panel in the form of using the display device front protective plate 50 such as a cover glass on the viewer side of the display panel 40.
  • 2 is a configuration example including at least a touch panel 30 including a substrate 10.
  • ⁇ Interposition of resin layer such as adhesive sheet ⁇ For example, in the display device 100 according to the embodiment illustrated in FIG. 8, between the touch panel 30 including the capacitive touch panel substrate 10 and the display panel 40 and between the touch panel 30 and the display device front protective plate 50.
  • a gap between the constituent members may be filled with a known resin layer such as an adhesive layer. Since the light reflection on the surface of the member is reduced by the resin layer, the display can be more easily seen.
  • a mobile phone such as a smartphone
  • a portable information terminal such as a tablet PC
  • a personal computer such as a personal computer
  • a car navigation system such as a digital camera
  • an electronic notebook such as a game machine
  • an automatic ticket vending machine an ATM terminal, a POS terminal, and the like.

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  • Position Input By Displaying (AREA)
PCT/JP2013/064103 2012-05-31 2013-05-21 静電容量式タッチパネル基板、及び表示装置 WO2013179955A1 (ja)

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WO2011013279A1 (ja) * 2009-07-31 2011-02-03 シャープ株式会社 電極基板、電極基板の製造方法、および画像表示装置

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