JP5546353B2 - Input device and display device having the same - Google Patents

Description

  The present invention relates to an input device that detects, as an input position, a position where a user performs an input operation on a predetermined planar input area, such as a touch panel, and a display device including the input device.

  An input device typified by a touch panel has an input area for detecting an input position, and a non-input area positioned outside the input area. Such an input device is, for example, provided on a base, a detection electrode provided on the base corresponding to the input area, and a base corresponding to the non-input area, and is electrically connected to the detection electrode. An electrode terminal, a circuit board having an electrode terminal facing the electrode terminal on the substrate, and a bonding member disposed between the electrode terminal on the substrate and the electrode terminal of the circuit board to bond the electrode terminals together I have. The joining member includes conductive particles, and the conductive particles are in contact with both electrode terminals to electrically connect them (for example, see Patent Document 1). Thus, a voltage can be applied to the detection electrode via the electrode terminal on the circuit board and the electrode terminal on the base.

JP 2004-341850 A

  However, in such an input device, when a desired input position in the input area is pressed by a finger or a pen, the base is deformed in response to the press, and a portion located in the non-input area of the base is input. By being pulled toward the region side, stress was applied to the electrode terminal and the bonding member on the base body located in the non-input region. When the stress due to the pressing is repeatedly applied, the adhesion between the conductive particles and the electrode terminal is lowered. And when the adhesiveness of electroconductive particle and an electrode terminal falls, there existed a problem that an electric current became difficult to flow between electroconductive particle and an electrode terminal, and the reliability of an input device might fall. .

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an input device capable of suppressing a decrease in reliability and a display device including the same.

One aspect of the input device of the present invention is an input device having an input area and a non- input area, the base, a detection electrode provided on the base corresponding to the input area, and the non-input area. A first electrode terminal provided on the corresponding base and electrically connected to the detection electrode, and a second electrode provided on the first electrode terminal and electrically connected to the detection electrode A circuit board having a terminal, a third electrode terminal facing the second electrode terminal, and the second electrode terminal and the third electrode terminal by contacting the second electrode terminal and the third electrode terminal; And a bonding member that joins the second electrode terminal and the third electrode terminal, and the hardness of the second electrode terminal is the hardness of the first electrode terminal. rather lower than, the second electrode terminal, the first It extends toward the base from the electrode terminal. Another aspect of the input device of the present invention is an input device having an input region and a non-input region, the base, a detection electrode provided on the base corresponding to the input region, and the non-input region Corresponding to
A first electrode terminal provided on the base body and electrically connected to the detection electrode; provided on the base body corresponding to the non-input region; and the first electrode terminal and the detection electrode. A wiring conductor that is electrically connected; a second electrode terminal that is provided on the first electrode terminal and that is electrically connected to the detection electrode; and a third electrode terminal that faces the second electrode terminal. Circuit board, conductive particles electrically connecting the second electrode terminal and the third electrode terminal by contacting the second electrode terminal and the third electrode terminal, and the second electrode A joining member for joining the terminal and the third electrode terminal, wherein the second electrode terminal has a hardness lower than that of the first electrode terminal, and the first electrode terminal is a plan view, A first region in which a second electrode terminal is provided; It has a second region in which the electrode terminals are not provided,
Part of the wiring conductor is located on the second region of the first electrode terminal and on the second electrode terminal in the first region. Still another aspect of the input device of the present invention is an input device having an input region and a non-input region, the base, a detection electrode provided on the base corresponding to the input region, and the non-input A first electrode terminal provided on the base corresponding to a region and electrically connected to the detection electrode; a first electrode terminal provided on the base corresponding to the non-input region; and the first electrode terminal and the A wiring conductor that electrically connects the detection electrode, a second electrode terminal that is provided on the first electrode terminal and is electrically connected to the detection electrode, and a third electrode that faces the second electrode terminal A circuit board having electrode terminals; and conductive particles that electrically connect the second electrode terminal and the third electrode terminal by contacting the second electrode terminal and the third electrode terminal; and The second electrode terminal and the third electrode end And a hardness of the second electrode terminal is lower than that of the first electrode terminal, and the first electrode terminal is provided with the second electrode terminal in plan view. And a second region where the second electrode terminal is not provided, and a part of the wiring conductor is located in the second region of the first electrode terminal. On the first electrode terminal, a part of the wiring conductor and the second electrode terminal are separated by a gap, and a part of the bonding member is located in the gap.

  According to the input device of the present invention, since the conductive particles are in contact with the second electrode terminal having a hardness lower than the hardness of the first electrode terminal, a decrease in reliability of connection between the base and the circuit board is suppressed. be able to.

It is the top view which showed an example of the input device in the 1st Embodiment of this invention. (A) is sectional drawing along the II line of FIG. 1, (b) is sectional drawing along the II-II line of FIG. It is the figure which expanded R part shown in FIG. It is sectional drawing along the III-III line of FIG. It is sectional drawing which showed an example of the display apparatus provided with the input device of FIG. It is the top view which showed the principal part of an example of the input device in the 2nd Embodiment of this invention. It is sectional drawing along the IV-IV line of FIG. It is sectional drawing which showed the principal part of an example of the input device in the 3rd Embodiment of this invention. It is sectional drawing which showed the principal part of an example of the input device in the 4th Embodiment of this invention. It is sectional drawing which showed an example of the input device of this invention. It is sectional drawing which showed an example of the input device of this invention.

[Embodiment 1]
First, an input device 1 according to a first embodiment of the present invention will be described with reference to FIGS. Here, the input device 1 is a capacitive touch panel.

As shown in FIGS. 1 and 2, the input device 1 has an input area E _I for inputting information by a user approaching or contacting a conductor 50 such as a finger or a pen (a finger is illustrated in FIG. 2). And a non-input area E _O located outside the input area E _I. The non-input region E _O includes an outer conductive region E _G connected circuit board 20 and electrically.

  The input device 1 includes a transparent substrate 10, a circuit substrate 20, a bonding member 30, and a driver 40. Here, as shown in FIG. 2, in the input device 1, the transparent substrate 10 and the circuit substrate 20 are joined by the joining member 30. Further, the bonding member 30 includes conductive particles 31, and the conductive particles 31 come into contact with both the second electrode terminal 14 of the transparent substrate 10 and the third electrode terminal 22 of the circuit substrate 20, so that the transparent substrate 10 and the circuit board 20 are electrically connected.

  The transparent substrate 10 includes a first base 11, a detection electrode 12, a first electrode terminal 13, a second electrode terminal 14, and a wiring conductor 15.

The first base 11 has a function of supporting the detection electrode 12, the first electrode terminal 13, the second electrode terminal 14, and the wiring conductor 15. The first base 11 has a first main surface 11a and a second main surface 11b located on the opposite side of the first main surface 11a. Here, the second main surface 11b of the first base 11 corresponding to the input region E _I is a surface on which the user brings the conductor 50 close or in contact as shown in FIGS. 2 (a) and 2 (b). Become.

  The planar view shape of the first base 11 is a rectangular shape in the example shown in FIG. 1, but is not limited thereto, and may be an arbitrary shape. Examples of the material of the first base 11 include those having insulating properties and translucency, such as glass and plastic. Here, translucency means having transparency to visible light.

The detection electrode 12 has a function of detecting an input position on the second main surface 11 b of the first base 11. Detection electrodes 12 are provided a plurality on the first major surface 11a of the first base 11 corresponding to the input region E _I, it is arranged along the X and Y directions. Further, as shown in FIG. 1, the detection electrodes 12 arranged in the X direction intersect with the detection electrodes 12 arranged in the Y direction, and the intersecting portions are shown in FIGS. 2 (a) and 2 (b). As shown in FIG. 2, an insulating member 12 </ b> A that electrically insulates both is provided. Examples of the material of the insulating member 12A include insulating resins such as acrylic resins and epoxy resins.

  Examples of the material of the detection electrode 12 include those having translucency and conductivity. Examples of the material having translucency and conductivity include ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), and ATO (Antimony Tin Oxide). , Tin oxide, zinc oxide and the like.

  Examples of the method for forming the detection electrode 12 include the following methods.

  First, for example, ITO is formed as a film on the first main surface 11a of the first substrate 11 by sputtering, vapor deposition, or chemical vapor deposition. A photosensitive resin is applied to the surface of the ITO film, and an exposure process and a development process are performed on the applied photosensitive resin, thereby forming a desired pattern of the detection electrode 12 on the photosensitive resin. Then, the detection electrode 12 can be formed by etching the ITO film with a chemical solution and patterning the ITO film into a desired shape of the detection electrode 12.

  In addition, acrylic resin is applied onto the first main surface 11a of the first base 11 and the detection electrode 12, exposed to light, and developed to form an insulating member 12A on the patterned electrode. Then, by forming an ITO film on the insulating member 12A and performing the same patterning as described above, the detection electrode 12 having the insulating member 12A at the intersection can be formed.

The first electrode terminal 13 and the second electrode terminal 14 have a function of being electrically connected to the third electrode terminal 22 of the circuit board 20. The first electrode terminal 13 is provided on the first main surface 11a of the first base 11 corresponding to the external conductive region _{E G} of the non-input region _{E O.} As shown in FIG. 4, the second electrode terminal 14 is provided on the first electrode terminal 13. As shown in FIG. 4, a part 14 a of the second electrode terminal 14 is provided so as to extend from the first electrode terminal 13 to the first main surface 11 a of the first base 11. Therefore, since the first electrode terminal 13 by the second electrode terminal 14 can be brought into close contact with the first substrate 11, even if the input region E _I stress is applied to the first electrode terminal 13 is pressed by the conductor 50, It can reduce that the 1st electrode terminal 13 peels from the 1st main surface 11a of the 1st base | substrate 11. FIG.

  Examples of the material of the first electrode terminal 13 and the second electrode terminal 14 include those having conductivity, such as ITO, tin oxide, or a metal such as aluminum, aluminum alloy, silver, or silver alloy. In addition, it is preferable to form the first electrode terminal 13 and the second electrode terminal 14 with the same material because the adhesion between the first electrode terminal 13 and the second electrode terminal 14 is improved. The first electrode terminal 13 and the second electrode terminal 14 can be formed by patterning.

  The hardness of the second electrode terminal 14 is set to be smaller than the hardness of the first electrode terminal 13. Accordingly, when the circuit board 20 is attached to the transparent substrate 10, specifically, when the second electrode terminal 14 and the third electrode terminal 22 are pressure-bonded via the bonding member 30, the second electrode terminal 14 is electrically conductive. A part of the conductive particles 31 can be embedded. That is, as shown in FIG. 4, a part of the conductive particles 31 is embedded in the second electrode terminal 14, so that the hole 14 b is provided in the second electrode terminal 14. For this reason, the contact area of the 2nd electrode terminal 14 and the electroconductive particle 31 increases, and the adhesiveness of the 2nd electrode terminal 14 and the electroconductive particle 31 can be improved. Therefore, the input device 1 can improve the reliability of connection between the first electrode terminal 13 of the transparent substrate 10 and the third electrode terminal 22 of the circuit board 20.

  Here, the hardness of the electrode terminal refers to, for example, Vickers hardness. Vickers hardness can be measured according to JIS Z 2244. Specifically, a diamond pyramid shaped indenter is pushed into the surface of the first electrode terminal 13 or the second electrode terminal 14 with a predetermined load, and the surface area is calculated from the length of the diagonal line of the dent remaining after the load is removed. The Vickers hardness can be determined from the value obtained by dividing the test load by the calculated surface area.

  The hardness of the 1st electrode terminal 13 and the 2nd electrode terminal 14 can be adjusted by changing the material of the 1st electrode terminal 13 and the 2nd electrode terminal 14, for example. Further, even if the first electrode terminal 13 and the second electrode terminal 14 are made of the same material, the first electrode terminal 13 and the second electrode terminal 14 can be formed by adjusting the film formation temperature, the film formation time, the gas flow rate, etc. when forming them. The hardness of the first electrode terminal 13 and the second electrode terminal 14 can be adjusted.

The wiring conductor 15 has a function of electrically connecting the detection electrode 12 to the first electrode terminal 13 and the second electrode terminal 14. The wiring conductor 15 is provided on the first main surface 11a of the first base 11 corresponding to the non-input area _EO . The wiring conductor 15 has one end connected to the detection electrode 12 and the other end connected to the first electrode terminal 13.

  Examples of the material of the wiring conductor 15 include a conductive material, for example, the same material as that of the first electrode terminal 13. The wiring conductor 15 can be formed by patterning.

  The circuit board 20 has a function of electrically connecting the driver 40 and the transparent substrate 10. The circuit board 20 includes a second base 21, a third electrode terminal 22, and a wiring pattern 23.

  The second base 21 has a function of supporting the third electrode terminal 22 and the wiring pattern 23. Examples of the material of the second base 21 include an insulating material such as a resin. In addition, if a flexible material such as a polyimide resin is used as the material of the second substrate 21, the circuit board 20 can be flexibly bent. Therefore, when the input device 1 is mounted on the display device 3 or the like. In addition, the input device 1 can be mounted more compactly.

  The third electrode terminal 22 has a function of being electrically connected to the first electrode terminal 13 and the second electrode terminal 14. As shown in FIG. 4, the third electrode terminal 22 is disposed on the second base 21 so as to face the second electrode terminal 14. The material of the third electrode terminal 22 is the same as that of the first electrode terminal 13. If a material having flexibility such as copper is used as the material of the third electrode terminal 22, the circuit board 20 can be flexibly bent when the second base 21 has flexibility.

  The wiring pattern 23 has a function of being electrically connected to the third electrode terminal 22. The material of the wiring pattern 23 is the same as that of the first electrode terminal 13. Further, when the second substrate 21 has flexibility, if the wiring pattern 23 is made of a flexible material such as copper, the circuit board 20 can be flexibly bent.

  As shown in FIG. 4, the bonding member 30 has a function of bonding the transparent substrate 10 and the circuit board 20. More specifically, the joining member 30 joins the second electrode terminal 14 and the third electrode terminal 22. The joining member 30 is provided between the transparent substrate 10 and the circuit board 20 and is located in a region where the second electrode terminal 14 and the third electrode terminal 22 face each other. Examples of the material of the joining member 30 include resins such as acrylic resin and epoxy resin.

  The joining member 30 includes a plurality of conductive particles 31. The conductive particles 31 have a function of electrically connecting the second electrode terminal 14 and the third electrode terminal 22 by contacting the second electrode terminal 14 and the third electrode terminal 22. Further, as shown in FIG. 4, a part of the conductive particles 31 is embedded in the hole portion 14 b of the second electrode terminal 14. More specifically, a part of the conductive particles 31 is located in the hole 14b so as to be in contact with the inner wall surface of the hole 14b.

  Examples of the material of the conductive particles 31 include those having conductivity, for example, metal particles such as Au and Ni, and those obtained by coating a metal film such as Au or Ni on the surface of a resin such as silica or polystyrene. It is done.

  The driver 40 has a function of transmitting a voltage signal to the detection electrode 20 and also has a function of calculating an X coordinate and a Y coordinate of a portion where the conductor 50 approaches or contacts. The driver 40 is electrically connected to the transparent substrate 10 via the circuit board 20.

  In the conventional input device, when the input area is pressed by the conductor, the base body is deformed in response to the pressing, and the part located in the non-input area of the base body is pulled toward the input area side, thereby being positioned in the non-input area. Stress was applied to the electrode terminal and the bonding member on the substrate. When the stress due to the pressing is repeatedly applied, the adhesion between the conductive particles and the electrode terminal is lowered, and when the adhesion between the conductive particles and the electrode terminal is lowered, an electric current is generated between the conductive particles and the electrode terminal. As a result, the reliability of the input device may be reduced.

  On the other hand, in the input device 1, the conductive particles 31 are in contact with the second electrode terminal 14 having a hardness lower than that of the first electrode terminal 13. Thereby, when the circuit board 20 is attached to the transparent substrate 10, specifically, when the second electrode terminal 14 and the third electrode terminal 22 are pressure-bonded via the bonding member 30, a part of the conductive particles 31 is formed. Can be embedded in the second electrode terminal 14. That is, the contact area between the second electrode terminal 14 and the conductive particle 31 can be increased, and the adhesion between the conductive particle 31 and the second electrode terminal 14 is improved, so that the first electrode terminal of the transparent substrate 10 is improved. It can suppress that the reliability of the connection of 13 and the 3rd electrode terminal 22 of the circuit board 20 falls.

  On the other hand, if the hardness of the electrode terminal is lowered, when the electrode terminal of the transparent substrate and the electrode terminal of the circuit substrate are pressure-bonded via the joining member, the conductive particles are pressed against the electrode terminal by an external force. The electrode terminal may be disconnected, and the reliability of the input device may be reduced.

  On the other hand, in the input device 1, the second electrode terminal 14 is provided on the first electrode terminal 13 having a hardness higher than the hardness of the second electrode terminal 14. Thereby, even when the second electrode terminal 14 is pressed by the conductive particles 31 when the second electrode terminal 14 and the third electrode terminal 22 are pressure-bonded via the bonding member 30, the first electrode terminal 13 is Since the two-electrode terminal 14 is reinforced, it is possible to prevent the second electrode terminal 14 from being disconnected.

In the input device 1, when the conductor 50 approaches or contacts the input area E _I , the position where the conductor 50 approaches or contacts is detected as the input position. Specifically, when the conductor 50 approaches or contacts the input region E _I , the capacitance of the detection electrode 12 changes. This capacitance change is measured by the driver 40, and the input coordinate in the input area E _I is calculated from the measured capacitance change value. In this way, the input device 1 can detect the input position.

[Configuration of display device]
FIG. 5 is a cross-sectional view illustrating an example of the display device 3 in the present embodiment. As shown in FIG. 5, the display device 3 includes an input device 1 and a liquid crystal display device 2. The input device 1 is attached to the liquid crystal display device 2 via a seal member D.

  The liquid crystal display device 2 includes a liquid crystal display panel 2a, a light source device 2b, and a housing 2c.

Light source device 2b has a function of irradiating light toward the liquid crystal display panel 2a, it is arranged between the liquid crystal display panel 2a and a lower housing 2c _2.

Housing 2c is a role for accommodating the liquid crystal display panel 2a and the light source device 2b, an upper casing 2c ₁ and lower casing 2c _2. Examples of the material of the housing 2c include a resin such as polycarbonate, or a metal such as stainless steel and aluminum.

  The display device 3 includes, for example, portable terminal devices such as mobile phones and PDAs (Personal Digital Assistants), programmable displays used in industrial applications such as factories, electronic notebooks, personal computers, It is provided in various electronic devices such as a copying machine or a terminal device for games.

  As described above, according to the display device 3 of the present embodiment, since the input device 1 is provided, a decrease in reliability can be suppressed.

[Embodiment 2]
6 and 7 are diagrams illustrating an example of the input device 1A according to the second embodiment. 6 is a plan view showing a main part of the input device 1A, and FIG. 7 is a cross-sectional view taken along line IV-IV in FIG.

  The difference between the input device 1 and the input device 1A is that a part of the first electrode terminal 13 is located on the wiring conductor 15 in the input device 1 whereas a part of the wiring conductor 15 is provided in the input device 1A. Is located on the first electrode terminal 13.

Specifically, in the input device 1 </ b> A, the first electrode terminal 13 has a first area 13 </ b> E _{1 in} which the second electrode terminal 14 is provided and a second electrode terminal 14 in which the second electrode terminal 14 is not provided. 2 region 13E ₂ and a part of the wiring conductor 15 is located in the second region 13E ₂ of the first electrode terminal 13.

In the input device 1 </ _b > A, a part of the wiring conductor 15 is located in the second region 13 </ _b > E ₂ of the first electrode terminal 13. That is, since the first electrode terminal 13 by a portion of the wiring conductor 15 is reliably brought into close contact with the first substrate 11, the first electrode a first base body 11 by the input region E _I is pressed by the conductor 50 is deformed Even when stress is applied to the terminal 13, it is possible to reduce the first electrode terminal 13 from being peeled off from the first main surface 11 a of the first base 11.

[Embodiment 3]
FIG. 8 is a cross-sectional view illustrating an example of the input device 1B according to the third embodiment. FIG. 8 is a diagram corresponding to FIG. 7 in the input device 1A. The difference between the input device 1A and the input device 1B is that, in the input device 1A, a part of the wiring conductor 15 is positioned on the first electrode terminal 13, whereas in the input device 1B, one part of the wiring conductor 15 is provided. In addition to the portion being located on the first electrode terminal 13, a part of the wiring conductor 15 is in contact with the second electrode terminal 14.

  In the input device 1B, since the wiring conductor 15 is located on the first electrode terminal 13, the first electrode terminal 13 is unlikely to be peeled off from the first main surface 11a of the first base body 11 as in the input device 1A. Furthermore, in the input device 1B, since a part of the wiring conductor 15 and the second electrode terminal 14 are in contact, the current from the circuit board 20 is not only from the first electrode terminal 13 but also from the second electrode terminal 14. Since the current flows through the wiring conductor 15, the electrical stability is improved.

In the input device 1B, the wiring conductor 15 is positioned on the second electrode terminal 14. That is, since the wiring conductor 15 securely brings the second electrode terminal 14 into close contact with the first electrode terminal 13, when the input region E _I is pressed by the conductor 50, the first base body 11 and the first electrode terminal 13 are deformed. Thus, even when stress is applied to the second electrode terminal 14, it is possible to reduce the second electrode terminal 14 from being peeled off from the first electrode terminal 13.

[Embodiment 4]
FIG. 9 is a cross-sectional view illustrating an example of the input device 1 </ b> C according to the third embodiment. FIG. 9 is a diagram corresponding to FIG. 7 in the input device 1A.

  The difference between the input device 1A and the input device 1C is that, in the input device 1A, the bonding member 30 is positioned on the second electrode terminal 14, whereas in the input device 1C, the bonding member 30 is the second electrode terminal 14. In addition to being located above, a part of the joining member 30 is located in the gap K between a part of the wiring conductor 15 and the second electrode terminal 14.

  Specifically, in the input device 1 </ b> C, on the first electrode terminal 13, a part of the wiring conductor 15 and the second electrode terminal 14 are separated from each other with a gap K therebetween. A part of the member 30 is located.

  In the input device 1 </ b> Cn, since a part of the joining member 30 is located in the gap K, the joining area between the transparent substrate 10 and the joining member 30 is increased, and the joining strength between the transparent substrate 10 and the circuit board 20 is improved. To do.

  While specific embodiments of the present invention have been described above, the present invention is not limited to these.

  In the input device 1, the first electrode terminal 13 is connected to the detection electrode 12 through the wiring conductor 15. However, as shown in FIG. 10, the first electrode terminal 13 and the wiring conductor 15 are integrally formed. Then, the first electrode terminal 13 may be directly connected to the detection electrode 12.

  Further, the hole 14b of the second electrode terminal 14 may be a through-hole penetrating in the thickness direction of the second electrode terminal 14 as shown in FIG. In this case, it is preferable that the conductive particles 31 are in contact with the surface of the first electrode terminal 13.

The input device 1 in the present embodiment is a touch panel that employs a capacitance method as a detection method of input to the input area E _I , but the detection method is not limited to this, for example, a resistive film type touch panel A surface acoustic wave type touch panel, an infrared type touch panel, or an electromagnetic induction type touch panel may be used.

  In the display device 3, the example including the input device 1 has been described. However, even if the input devices 1 </ b> A, 1 </ b> B, and 1 </ b> C according to other embodiments are provided, the same effects as those described above can be obtained.

  In the display device 3, the example in which the display panel is the liquid crystal display panel 2a has been described, but the display panel is not limited to this. That is, the display panel may be a CRT, plasma display, organic EL display, inorganic EL display, LED display, fluorescent display tube, field emission display, surface electric field display, electronic paper, or the like.

1, 1A, 1B, 1C Input device 2 Display device 3 Liquid crystal display device 10 Transparent substrate 11 First base 12 Detection electrode 13 First electrode terminal 14 Second electrode terminal 15 Wiring conductor 20 Circuit board 22 Third electrode terminal 30 Bonding member 31 Conductive Particle 2a Display Panel

Claims (6)

An input device having an input area and a non- input area,
A substrate;
A detection electrode provided on the substrate corresponding to the input region;
A first electrode terminal provided on the base corresponding to the non-input region and electrically connected to the detection electrode;
A second electrode terminal provided on the first electrode terminal and electrically connected to the detection electrode;
A circuit board having a third electrode terminal facing the second electrode terminal;
Conductive particles that electrically connect the second electrode terminal and the third electrode terminal by contacting the second electrode terminal and the third electrode terminal, and the second electrode terminal and the third electrode terminal A joining member for joining the electrode terminal,
The hardness of the second electrode terminal, rather lower than the hardness of the first electrode terminal,
The input device , wherein the second electrode terminal extends from the first electrode terminal to the base . An input device having an input area and a non- input area,
A substrate;
A detection electrode provided on the substrate corresponding to the input region;
A first electrode terminal provided on the base corresponding to the non-input region and electrically connected to the detection electrode;
A wiring conductor provided on the base corresponding to the non-input region and electrically connecting the first electrode terminal and the detection electrode;
A second electrode terminal provided on the first electrode terminal and electrically connected to the detection electrode;
A circuit board having a third electrode terminal facing the second electrode terminal;
Conductive particles that electrically connect the second electrode terminal and the third electrode terminal by contacting the second electrode terminal and the third electrode terminal, and the second electrode terminal and the third electrode terminal A joining member for joining the electrode terminal,
The hardness of the second electrode terminal, rather lower than the hardness of the first electrode terminal,
The first electrode terminal has a first region in which the second electrode terminal is provided and a second region in which the second electrode terminal is not provided in plan view,
A part of the wiring conductor is in the second region and the first region of the first electrode terminal.
An input device located on the second electrode terminal . An input device having an input area and a non- input area,
A substrate;
A detection electrode provided on the substrate corresponding to the input region;
A first electrode terminal provided on the base corresponding to the non-input region and electrically connected to the detection electrode;
A wiring conductor provided on the base corresponding to the non-input region and electrically connecting the first electrode terminal and the detection electrode;
A second electrode terminal provided on the first electrode terminal and electrically connected to the detection electrode;
A circuit board having a third electrode terminal facing the second electrode terminal;
Conductive particles that electrically connect the second electrode terminal and the third electrode terminal by contacting the second electrode terminal and the third electrode terminal, and the second electrode terminal and the third electrode terminal A joining member for joining the electrode terminal,
The hardness of the second electrode terminal, rather lower than the hardness of the first electrode terminal,
The first electrode terminal has a first region in which the second electrode terminal is provided and a second region in which the second electrode terminal is not provided in plan view,
A portion of the wiring conductor is located in the second region of the first electrode terminal;
On the first electrode terminal, a part of the wiring conductor and the second electrode terminal are separated via a gap,
An input device in which a part of the joining member is located in the gap . The second electrode terminal is provided with a hole,
The input device according to any one of claims 1 to 3 , wherein a part of the conductive particles is embedded in the hole. The input device according to any one of claims 1 to 4 ,
A display panel disposed opposite to the input device ;
A display device comprising: The display device according to claim 5 , wherein the display panel is a liquid crystal display panel.

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