WO2018110123A1 - 静電容量式センサおよび機器 - Google Patents
静電容量式センサおよび機器 Download PDFInfo
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- WO2018110123A1 WO2018110123A1 PCT/JP2017/039153 JP2017039153W WO2018110123A1 WO 2018110123 A1 WO2018110123 A1 WO 2018110123A1 JP 2017039153 W JP2017039153 W JP 2017039153W WO 2018110123 A1 WO2018110123 A1 WO 2018110123A1
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- Prior art keywords
- transparent electrode
- layer
- capacitive sensor
- transparent electrodes
- bridge
- Prior art date
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- 239000000463 material Substances 0.000 claims abstract description 85
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000002070 nanowire Substances 0.000 claims abstract description 30
- 239000011787 zinc oxide Substances 0.000 claims abstract description 25
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- 238000001514 detection method Methods 0.000 claims description 27
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 239000002042 Silver nanowire Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 claims description 4
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Definitions
- the present invention relates to a capacitance type sensor, and more particularly, to a capacitance type sensor provided with a transparent electrode including a conductive nanowire and a device including this capacitance type sensor.
- Patent Document 1 discloses a finger touch detection panel in which an X electrode and a Y electrode of an indium tin oxide (ITO) layer are formed on a transparent glass substrate.
- the finger touch detection panel described in Patent Document 1 includes a portion where the X electrode and the Y electrode cross each other.
- the Y electrode is electrically connected by a conductor film through the opening. In this manner, the detection panel can be thinned by providing the bridge wiring portion that crosses the X electrode and the Y electrode and electrically connects the Y electrode on the substrate.
- a material containing conductive nanowires such as gold nanowires, silver nanowires, and copper nanowires may be used as the transparent electrode material of the capacitive sensor.
- the contact area between the transparent electrode and the bridge wiring portion provided at the intersection of the electrodes becomes relatively narrow. That is, the conductive nanowires ensure conductivity and transparency by the conductive wire exposed on the surface of the transparent electrode. Therefore, when the material of the bridge wiring portion is a material containing conductive nanowires, the contact between the transparent electrode and the bridge wiring portion is the contact between the wire and the wire. Alternatively, when the material of the bridge wiring portion is an oxide-based material such as ITO, the contact between the transparent electrode and the bridge wiring portion is the contact between the wire and the surface. Thus, when a material containing conductive nanowires is used as the material of the transparent electrode, the contact area between the transparent electrode and the bridge wiring portion becomes relatively narrow.
- the conduction stability may be reduced.
- ESD electrostatic discharge
- the contact portion may locally generate heat and melt. That is, when a material containing conductive nanowires is used as the material for the transparent electrode, the deformation performance of the capacitive sensor is improved, while the conduction stability and ESD resistance may be reduced.
- a crystalline oxide material or metal material is used for the material of the bridge wiring portion, there is a possibility that the resistance at the time of bending increases or the bridge wiring portion is disconnected.
- the present invention is for solving the above-described conventional problems, and provides a capacitive sensor excellent in conduction stability while ensuring invisibility of a bridge wiring portion, and a device including the capacitive sensor.
- the purpose is to do.
- the capacitance type sensor of the present invention is arranged side by side along the first direction in the detection region of the one main surface of the base material having translucency, and is translucent.
- a plurality of first transparent electrodes, and a plurality of first transparent electrodes arranged in a line along a second direction intersecting the first direction in the detection region, and having translucency and including conductive nanowires Two transparent electrodes, a connecting portion provided integrally with the first transparent electrode, and electrically connecting two adjacent first transparent electrodes to each other, and the second transparent electrode as separate bodies
- a bridge wiring portion that is provided at a portion intersecting the connecting portion and electrically connects the two adjacent second transparent electrodes to each other, and the bridge wiring portion includes the two adjacent second transparent electrodes.
- the capacitive sensor is characterized in that the surface of the bridge portion located on the distal side with respect to the base material of the bridge portion is made of an amorphous oxide material.
- the layer made of a zinc oxide-based material tends to have a lower contact resistance with the second transparent electrode containing conductive nanowires than the layer made of an amorphous oxide-based material.
- a layer made of a zinc oxide-based material is more visible than a layer made of an amorphous oxide-based material. Therefore, as described above, the bridge wiring portion is brought into contact with the second transparent electrode by the layer made of the zinc oxide-based material to reduce the contact resistance between the bridge wiring portion and the second transparent electrode, and the bridge.
- the layer farthest from the second transparent electrode in the contact portion is preferably made of an amorphous oxide material.
- the bridge portion may be made of the amorphous oxide material.
- the bridge portion has a laminated structure, and the layer made of a zinc oxide material connected to the second transparent electrode from the nearest layer is more than the layer made of the amorphous oxide material. May be located proximally relative to.
- the zinc oxide-based material may contain at least one of zinc oxide and indium zinc oxide.
- the conductive nanowire may be at least one selected from the group consisting of a gold nanowire, a silver nanowire, and a copper nanowire.
- the amorphous oxide material may be at least one selected from the group consisting of amorphous ITO, amorphous GZO, amorphous AZO, and amorphous FTO.
- This invention provides the apparatus provided with said electrostatic capacitance type sensor as another one aspect
- the present invention it is possible to provide a capacitive sensor excellent in conduction stability while ensuring invisibility of the bridge wiring portion, and a device including this capacitive sensor.
- FIG. 3 is a cross-sectional view taken along a cutting plane C1-C1 shown in FIG.
- FIG. 3 is a cross-sectional view taken along a cutting plane C2-C2 shown in FIG.
- (A) And (b) is a schematic diagram shown about an application example.
- (A) And (b) is a schematic diagram shown about an application example. It is a top view which illustrates typically a Kelvin pattern. It is a graph which shows the relationship between the contact area of the contact part P1, and the electrical resistance value Rc.
- FIG. 1 is a plan view illustrating a capacitive sensor according to the present embodiment.
- FIG. 2 is an enlarged plan view of the area A1 shown in FIG.
- FIG. 3 is a cross-sectional view taken along the cutting plane C1-C1 shown in FIG. 4 is a cross-sectional view taken along section line C2-C2 shown in FIG.
- the transparent electrode is transparent and cannot be visually recognized, FIGS. 1 and 2 show the outer shape of the transparent electrode for easy understanding.
- transparent and “translucent” refer to a state where the visible light transmittance is 50% or more (preferably 80% or more). Furthermore, the haze value is preferably 6% or less. In the present specification, “light shielding” and “light shielding” refer to a state where the visible light transmittance is less than 50% (preferably less than 20%).
- the capacitive sensor 1 includes a base material 2, a first transparent electrode 4, a second transparent electrode 5, a connecting portion 7, The bridge wiring part 10 and the protective layer 3 are provided. Between the base material 2 and the protective layer 3, an optical transparent adhesive layer 30 is provided. An insulating layer 20 is provided between the base material 2 and the bridge wiring portion 10. As shown in FIG. 3, in the portion where the bridge wiring portion 10 is provided, the optical transparent adhesive layer 30 is provided between the bridge wiring portion 10 and the protective layer 3.
- the base material 2 has translucency and is formed of a film-like transparent base material such as polyethylene terephthalate (PET), a glass base material, or the like.
- a first transparent electrode 4 and a second transparent electrode 5 are provided on one main surface 2 a of the substrate 2. Details of this will be described later.
- the protective layer 3 is provided on the side opposite to the base material when viewed from the bridge wiring portion 10 and has translucency. Examples of the material of the protective layer 3 include a plastic substrate having translucency such as a polycarbonate substrate.
- the protective layer 3 is joined to the base material 2 via an optically transparent adhesive layer (OCA) 30 provided between the base material 2 and the protective layer 3.
- the optical transparent adhesive layer (OCA) 30 is composed of an adhesive layer containing an acrylic adhesive, a double-sided adhesive tape, and the like.
- the capacitive sensor 1 includes a detection region 11 and a non-detection region 25 when viewed from the direction along the normal of the surface on the protective layer 3 side (Z1-Z2 direction).
- the detection area 11 is an area where an operation body such as a finger can be operated
- the non-detection area 25 is a frame-shaped area located on the outer peripheral side of the detection area 11.
- the non-detection region 25 is shielded by a decorative layer (not shown), and light (external light is exemplified) from the surface on the protective layer 3 side to the surface on the base material 2 side in the electrostatic capacitance sensor 1 and the base material.
- Light from the surface on the second side to the surface on the protective layer 3 side passes through the non-detection region 25. It has become difficult.
- a first electrode connector 8 and a second electrode connector 12 are provided on one main surface 2 a of the substrate 2.
- the first electrode assembly 8 is disposed in the detection region 11 and has a plurality of first transparent electrodes 4.
- the plurality of first transparent electrodes 4 are principal surfaces (hereinafter referred to as Z1 side) located on the Z1 side of the principal surfaces having a direction along the Z1-Z2 direction in the substrate 2 as a normal line. , May be abbreviated as “front surface.”) Provided in 2a.
- Each first transparent electrode 4 is connected in the Y1-Y2 direction (first direction) via an elongated connecting portion 7.
- first electrode assemblies 8 having a plurality of first transparent electrodes 4 coupled in the Y1-Y2 direction are arranged at intervals in the X1-X2 direction.
- the connecting portion 7 is formed integrally with the first transparent electrode 4. The connecting portion 7 electrically connects two adjacent first transparent electrodes 4 to each other.
- the first transparent electrode 4 and the connecting portion 7 are translucent and are made of a material containing conductive nanowires.
- the conductive nanowire at least one selected from the group consisting of gold nanowire, silver nanowire, and copper nanowire is used.
- the first transparent electrode 4 can have high translucency and low electrical resistance.
- transformation performance of the electrostatic capacitance type sensor 1 can be improved by using the material containing electroconductive nanowire.
- the material containing conductive nanowires has conductive nanowires and a transparent resin layer. Conductive nanowires are dispersed in the resin layer. The dispersibility of the conductive nanowire is ensured by the resin layer. Examples of the material for the transparent resin layer include polyester resin, acrylic resin, and polyurethane resin. The plurality of conductive nanowires are in contact with each other at least in part, so that the conductivity in the plane of the material including the conductive nanowires is maintained.
- the second electrode assembly 12 is arranged in the detection region 11 and has a plurality of second transparent electrodes 5. As shown in FIGS. 3 and 4, the plurality of second transparent electrodes 5 are provided on the front surface 2 a of the substrate 2. Thus, the 2nd transparent electrode 5 is provided in the same surface (front surface 2a of the base material 2) as the 1st transparent electrode 4. FIG. Each second transparent electrode 5 is connected to the X1-X2 direction (second direction) via the elongated bridge wiring portion 10. Then, second electrode assemblies 12 having a plurality of second transparent electrodes 5 coupled in the X1-X2 direction are arranged at intervals in the Y1-Y2 direction.
- the bridge wiring portion 10 is formed as a separate body from the second transparent electrode 5. Note that the X1-X2 direction intersects the Y1-Y2 direction. For example, the X1-X2 direction intersects the Y1-Y2 direction perpendicularly.
- the second transparent electrode 5 has translucency and is formed of a material including conductive nanowires.
- the conductive nanowire is as described above regarding the material of the first transparent electrode 4.
- the bridge wiring portion 10 is connected to two contact portions 10 ⁇ / b> A ⁇ b> 1 and 10 ⁇ / b> A ⁇ b> 2 that are in contact with two adjacent second transparent electrodes 5 and 5, and these contact portions 10 ⁇ / b> A ⁇ b> 1 and 10 ⁇ / b> A ⁇ b> 2.
- the bridge portion 10 ⁇ / b> B is spaced apart from two adjacent second transparent electrodes 5 and 5.
- Contact portions 10A1 and 10A2 have a laminated structure. That is, at least a layer in contact with the second transparent electrode 5 and a layer different from this layer are located on the distal side with respect to the second transparent electrode 5.
- the bridge wiring portion 10 is entirely composed of a layer (first layer) 101 having a portion in contact with the second transparent electrode 5 and a first layer 101 located distal to the first layer 101. It consists of two layers 102.
- the first layer 101 is made of a zinc oxide material.
- the layer made of a zinc oxide-based material tends to have a low contact resistance with the second transparent electrode 5 containing conductive nanowires.
- contact resistance hardly increases even after a test (8585 test) that is placed in a high-temperature hard environment (for example, 85 ° C. and a relative humidity of 85%) for a long time (for example, 100 hours).
- a layer made of a zinc oxide-based material is connected to the second transparent electrode 5 including a conductive nanowire after the 8585 test. Low contact resistance.
- the zinc oxide-based material may contain at least one of zinc oxide (ZnO) and indium zinc oxide (IZO), and may be composed of zinc oxide (ZnO) or indium zinc oxide (IZO).
- the surface (distal side surface) 10a located on the distal side with respect to the base material 2 in the bridge wiring portion 10 is made of an amorphous oxide material.
- the distal side surface 10 a is the surface of the second layer 102. Therefore, the second layer 102 is made of an amorphous oxide material. Amorphous oxide materials are less visible than zinc oxide materials. For this reason, the visibility of the bridge
- amorphous oxide materials include amorphous ITO (Indium (Tin Oxide), amorphous GZO (Gallium-doped Zinc Oxide), amorphous AZO (Aluminum-doped Zinc Oxide), and amorphous FTO (Fluorine-doped Zinc Oxide).
- FIG. 5 is a partial cross-sectional view of a capacitive sensor according to a modification of the present embodiment, and corresponds to FIG.
- the bridge wiring portion 10 has a laminated structure of the first layers 101a and 101b and the second layer 102 in the contact portions 10A1 and 10A2.
- the bridge portion 10B has a single-layer structure of the second layer 102.
- the first layers 101a and 101b made of a zinc oxide-based material are preferably present in the contact portions 10A1 and 10A2 because the contact resistance with the second transparent electrode 5 can be lowered.
- the layer made of the zinc oxide-based material is not necessarily located in the bridge portion 10B, and the second layer 102 made of the amorphous oxide-based material that is relatively difficult to visually recognize is located in the bridge portion 10B. Just do it.
- the bridge wiring portion 10 may have a layer other than the first layer 101 (101a, 101b) made of a zinc oxide-based material and the second layer 102 made of an amorphous oxide-based material.
- a layer made of a transparent metal having lower resistance than the first layer 101 (101a, 101b) and the second layer 102 is exemplified.
- an insulating layer 20 is provided on the surface of the connecting portion 7 that connects the first transparent electrodes 4 to each other. As shown in FIG. 3, the insulating layer 20 fills the space between the connecting portion 7 and the second transparent electrode 5, and slightly rides on the surface of the second transparent electrode 5. As the insulating layer 20, for example, a novolac resin (resist) is used.
- the bridge wiring portion 10 is provided from the surface 20a of the insulating layer 20 to the surface of each second transparent electrode 5 located on both sides of the insulating layer 20 in the X1-X2 direction. .
- the bridge wiring portion 10 electrically connects two adjacent second transparent electrodes 5 to each other.
- an insulating layer 20 is provided on the surface of the connecting portion 7 that connects the first transparent electrodes 4, and each second transparent electrode 5 is provided on the surface of the insulating layer 20.
- a bridge wiring portion 10 is provided to connect the two.
- the insulating layer 20 is interposed between the connecting portion 7 and the bridge wiring portion 10, and the first transparent electrode 4 and the second transparent electrode 5 are electrically insulated. .
- the capacitive sensor 1 can be thinned. realizable.
- the connecting portion 7 shown in FIGS. 2 to 4 is formed integrally with the first transparent electrode 4 and extends in the Y1-Y2 direction. 2 to 4 are formed separately from the second transparent electrode 5 on the surface 20a of the insulating layer 20 covering the connecting portion 7, and extend in the X1-X2 direction. .
- the arrangement form of the connecting portion 7 and the bridge wiring portion 10 is not limited to this.
- the connecting portion 7 may be formed integrally with the first transparent electrode 4 and extend in the X1-X2 direction. In this case, the connecting portion 7 electrically connects two adjacent second transparent electrodes 5 to each other.
- the bridge wiring portion 10 may be formed separately from the first transparent electrode 4 on the surface 20a of the insulating layer 20 that covers the connecting portion 7, and may extend in the Y1-Y2 direction. In this case, the bridge wiring part 10 electrically connects two adjacent first transparent electrodes 4 to each other.
- the bridge wiring portion 10 is formed separately from the second transparent electrode 5 on the surface 20a of the insulating layer 20 covering the connecting portion 7, and X1-X2 Take the case of extending in the direction as an example.
- each wiring portion 6 led out from each first electrode coupling body 8 and each second electrode coupling body 12 are formed.
- Each of the first electrode coupling body 8 and the second electrode coupling body 12 is electrically connected to the wiring portion 6 via the connection wiring 16.
- Each wiring part 6 is connected to an external connection part 27 that is electrically connected to a flexible printed circuit board (not shown).
- each wiring portion 6 electrically connects the first electrode connecting body 8 and the second electrode connecting body 12 to the external connection portion 27.
- the external connection unit 27 is electrically connected to a flexible printed circuit board (not shown) through, for example, a conductive paste.
- Each wiring part 6 is formed of a material having a metal such as Cu, Cu alloy, CuNi alloy, Ni, Ag, or Au.
- the connection wiring 16 is made of a transparent conductive material such as ITO, and extends from the detection region 11 to the non-detection region 25.
- the wiring portion 6 is stacked on the connection wiring 16 in the non-detection region 25 and is electrically connected to the connection wiring 16.
- the wiring part 6 is provided in the part located in the non-detection area
- the external connection portion 27 is also provided in a portion located in the non-detection region 25 on the front surface 2 a of the base material 2.
- the wiring portion 6 and the external connection portion 27 are displayed so as to be visually recognized.
- the portion located in the non-detection region 25 has a light shielding property.
- a decorative layer (not shown) is provided.
- the material which comprises a decorating layer is arbitrary as long as it has light-shielding property.
- the decorative layer may have insulating properties.
- the capacitive sensor 1 As shown in FIG. 3, for example, when a finger is brought into contact with the surface 3 a of the protective layer 3 as an example of the operating body, the first transparent electrode 4 close to the finger and the finger. And between the finger and the second transparent electrode 5 close to the finger.
- the capacitive sensor 1 can calculate the contact position of the finger based on the capacitance change at this time.
- the capacitance type sensor 1 detects the X coordinate of the position of the finger based on a change in capacitance between the finger and the first electrode coupling body 8, and between the finger and the second electrode coupling body 12.
- the Y-coordinate of the finger position is detected based on the change in electrostatic capacitance (self-capacitance detection type).
- the capacitance type sensor 1 may be a mutual capacitance detection type. That is, the capacitance type sensor 1 applies a driving voltage to one of the electrodes of the first electrode connection body 8 and the second electrode connection body 12, and the first electrode connection body 8 and the second electrode connection body 12. A change in capacitance between the other electrode of the electrode assembly 12 and the finger may be detected. Thereby, the capacitive sensor 1 detects the Y coordinate of the finger position by the other electrode, and detects the X coordinate of the finger position by the one electrode.
- 6A to 7B are schematic diagrams showing application examples.
- FIG. 6A shows an example in which the capacitive sensor 1 is applied to the touch panel 200.
- the touch panel 200 includes a display panel 210 and a capacitive sensor 1 provided on the display panel 210.
- the display panel 210 for example, a liquid crystal display panel is used.
- a display panel 210 formed of a liquid crystal display panel includes a drive substrate 211 and a counter substrate 212 that are arranged to face each other, and a liquid crystal layer 213 is provided between the drive substrate 211 and the counter substrate 212.
- the touch sensor 220 is provided on the front side of the counter substrate 212.
- FIG. 6B illustrates an example of the electronic device 300 including the touch panel 200.
- the electronic device 300 is a television, for example.
- the electronic device 300 includes a housing 310 and a display unit 320.
- a touch panel 200 is provided on the surface of the display unit 320.
- the electronic device 300 is not limited to a television, and may be another device such as a smartphone, a mobile phone, or a tablet terminal.
- the capacitive sensor 1 may be applied to electric devices such as refrigerators and washing machines, and transportation devices such as automobiles and ships.
- FIG. 7A shows an example (notebook computer) of a computer 400 provided with a touch panel 200.
- the computer 400 includes a display 410, a keyboard 420, an input pad 430, and the like.
- the computer 400 includes a central processing unit 401, a main storage unit 402, a secondary storage unit 403, an input unit 404, an output unit 405, and an interface 406.
- the keyboard 420 and the input pad 430 are an example of the input unit 404.
- the display 410 is an example of the output unit 405.
- the display 410 includes the touch panel 200.
- the touch panel 200 is an example in which both the input unit 404 and the output unit 405 are used.
- a capacitive sensor manufacturing method and electrostatic sensor capable of manufacturing a capacitive sensor having bridge wiring at intersections of a plurality of electrode layers with high productivity.
- a capacitive sensor and a photosensitive conductive sheet can be provided.
- the optical transparent adhesive layer 30 is disposed between the protective layer 3 and the structure including the first electrode connector 8 and the second electrode connector 12 provided on the substrate 2.
- the protective layer 3 may be provided so as to cover the structure including the first electrode connector 8 and the second electrode connector 12 provided on the substrate 2. Such a configuration can be obtained, for example, by a method in which the composition for forming the protective layer 3 is applied on the above-described structure and the coating film is cured to form the protective layer 3.
- FIG. 8 is a plan view schematically illustrating a Kelvin pattern.
- the first sample 5S containing silver nanowires and the second sample 10S made of zinc oxide were crossed with each other.
- the first sample 5S corresponds to the second transparent electrode 5.
- the second sample 10S corresponds to the first layer 101 (101a, 101b) in the bridge wiring portion 10.
- either the dimension L11 in the Y1-Y2 direction of the contact portion P1 or the dimension L12 in the X1-X2 direction of the contact portion P1 is fixed to 100 ⁇ m, and either the dimension L11 or the dimension L12 is changed.
- the contact area of the contact portion P1 was changed.
- a plurality of Kelvin patterns having different contact areas of the contact portion P1 were prepared.
- FIG. 9 is a graph showing the relationship between the contact area of the contact portion P1 between the first sample 5S and the second sample 10S or the comparative sample and the electrical resistance value Rc.
Abstract
Description
図1は、本実施形態に係る静電容量式センサを表す平面図である。
図2は、図1に表した領域A1を拡大した平面図である。
図3は、図2に表した切断面C1-C1における断面図である。
図4は、図2に表した切断面C2-C2における断面図である。
なお、透明電極は透明なので本来は視認できないが、図1および図2では理解を容易にするため透明電極の外形を示している。
図8は、ケルビンパターンを模式的に例示する平面図である。図8に表したようなケルビンパターンを用いて、銀ナノワイヤを含む第1の試料5Sと酸化亜鉛からなる第2の試料10Sとを互いに交差させた。第1の試料5Sは、第2の透明電極5に相当する。第2の試料10Sは、ブリッジ配線部10における第1層101(101a,101b)に相当する。本試験では、接触部分P1のY1-Y2方向の寸法L11および接触部分P1のX1-X2方向の寸法L12のいずれか一方を100μmに固定し、寸法L11および寸法L12のいずれか他方を変化させることで、接触部分P1の接触面積を変化させた。こうして、接触部分P1の接触面積が異なる複数のケルビンパターンを用意した。
第2の試料10Sに代えて、製法が異なる2種類のインジウム錫酸化物(ITO)からなる比較用試料を用いて、実施例1と同様に接触部分P1の接触面積が異なる複数のケルビンパターンを用意した。
(測定例)8585信頼性試験後の電気抵抗値の測定
2 基材
2a 主面(おもて面)
3 保護層
3a 面
4 第1の透明電極
5 第2の透明電極
5S 第1の試料
6 配線部
7 連結部
8 第1の電極連結体
10 ブリッジ配線部
10A1,10A2 接触部分
10B ブリッジ部分
101,101a,101b 第1層
10a 遠位側面
102 第2層
10S 第2の試料
11 検出領域
12 第2の電極連結体
16 接続配線
20 絶縁層
20a 表面
25 非検出領域
27 外部接続部
30 光学透明粘着層
A1 領域
C1 切断面
C2 切断面
L11 寸法
L12 寸法
P1 接触部分
200 タッチパネル
210 表示パネル
211 駆動基板
212 対向基板
213 液晶層
220 タッチセンサ
300 電子機器
310 筐体
320 表示部
400 コンピュータ
410 ディスプレイ
420 キーボード
430 入力パッド
401 中央演算部
402 主記憶部
403 副記憶部
404 入力部
405 出力部
406 インタフェース
Claims (8)
- 透光性を有する基材と、
前記基材の一方の主面の検出領域において第1の方向に沿って並んで配置され、透光性を有する複数の第1の透明電極と、
前記検出領域において前記第1の方向と交差する第2の方向に沿って並んで配置され、透光性を有し、導電性ナノワイヤを含む複数の第2の透明電極と、
前記第1の透明電極に一体として設けられ、隣り合う2つの前記第1の透明電極を互いに電気的に接続する連結部と、
前記第2の透明電極とは別体として前記連結部に交差する部分に設けられ、隣り合う2つの前記第2の透明電極を互いに電気的に接続するブリッジ配線部とを備え、
前記ブリッジ配線部は、前記隣り合う2つの第2の透明電極のそれぞれに接する2つの接触部分と、前記接触部分に連設され前記隣り合う2つの第2の透明電極から離間するブリッジ部分とからなり、
前記接触部分は積層構造を有し、前記第2の透明電極に接する部分を有する層が亜鉛酸化物系材料からなり、
前記ブリッジ部分における前記基材に対して遠位側に位置する面は、アモルファス酸化物系材料からなること
を特徴とする静電容量式センサ。 - 前記接触部分における前記第2の透明電極に最遠位な層は、アモルファス酸化物系材料からなる、請求項1に記載の静電容量式センサ。
- 前記ブリッジ部分は前記アモルファス酸化物系材料からなる、請求項1または2に記載の静電容量式センサ。
- 前記ブリッジ部分は積層構造を有し、前記第2の透明電極に最近位な層から連設される亜鉛酸化物系材料からなる層が、前記アモルファス酸化物系材料からなる層よりも前記基材に対して近位に配置される、請求項1、乃至、請求項3の何れかに記載の静電容量式センサ。
- 前記亜鉛酸化物系材料は、酸化亜鉛およびインジウム酸化亜鉛の少なくとも一方を含む、請求項1に記載の静電容量式センサ。
- 前記導電性ナノワイヤは、金ナノワイヤ、銀ナノワイヤ、および銅ナノワイヤよりなる群から選択された少なくとも1つであることを特徴とする請求項1記載の静電容量式センサ。
- 前記アモルファス酸化物系材料は、アモルファスITO、アモルファスGZO、アモルファスAZO、およびアモルファスFTOよりなる群から選択された少なくとも1つであることを特徴とする請求項1または2に記載の静電容量式センサ。
- 請求項1から7のいずれか一項に記載される静電容量式センサを備える機器。
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EP17879772.6A EP3553641A4 (en) | 2016-12-12 | 2017-10-30 | CAPACITIVE SENSOR AND DEVICE |
JP2018556238A JP6735850B2 (ja) | 2016-12-12 | 2017-10-30 | 静電容量式センサおよび機器 |
CN201780072509.9A CN110023892A (zh) | 2016-12-12 | 2017-10-30 | 静电电容式传感器以及设备 |
KR1020197013382A KR20190065390A (ko) | 2016-12-12 | 2017-10-30 | 정전 용량식 센서 및 기기 |
US16/414,288 US10684735B2 (en) | 2016-12-12 | 2019-05-16 | Capacitive sensor and device |
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WO2021075304A1 (ja) * | 2019-10-18 | 2021-04-22 | 富士フイルム株式会社 | 透明積層体、画像表示装置 |
TWI770800B (zh) * | 2021-02-02 | 2022-07-11 | 大陸商宸美(廈門)光電有限公司 | 電子裝置 |
US11513646B2 (en) | 2021-03-02 | 2022-11-29 | Tpk Advanced Solutions Inc. | Electronic device |
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JP2013178738A (ja) * | 2012-02-10 | 2013-09-09 | Alps Electric Co Ltd | 入力装置 |
JP2014010516A (ja) * | 2012-06-28 | 2014-01-20 | Hitachi Chemical Co Ltd | 静電容量結合方式タッチパネルおよびその製造方法 |
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CN102243553B (zh) * | 2010-05-16 | 2015-06-10 | 宸鸿科技(厦门)有限公司 | 电容式触控面板及降低其金属导体可见度的方法 |
CN104699285B (zh) * | 2013-12-09 | 2017-11-21 | 宸鸿科技(厦门)有限公司 | 触控感测结构及其形成方法 |
KR102263975B1 (ko) * | 2014-12-16 | 2021-06-11 | 삼성디스플레이 주식회사 | 터치 패널 및 그 제조방법 |
CN106919278A (zh) * | 2015-12-28 | 2017-07-04 | 宸鸿科技(厦门)有限公司 | 触控面板 |
CN109791458B (zh) * | 2016-10-06 | 2022-02-25 | 阿尔卑斯阿尔派株式会社 | 静电电容式传感器 |
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2017
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- 2017-10-30 KR KR1020197013382A patent/KR20190065390A/ko active IP Right Grant
- 2017-10-30 EP EP17879772.6A patent/EP3553641A4/en not_active Withdrawn
- 2017-10-30 CN CN201780072509.9A patent/CN110023892A/zh not_active Withdrawn
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JP2013178738A (ja) * | 2012-02-10 | 2013-09-09 | Alps Electric Co Ltd | 入力装置 |
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KR20190065390A (ko) | 2019-06-11 |
EP3553641A4 (en) | 2020-06-24 |
US10684735B2 (en) | 2020-06-16 |
EP3553641A1 (en) | 2019-10-16 |
CN110023892A (zh) | 2019-07-16 |
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