JP2014127017A - Touch panel input operation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a touch panel input operation device capable of facilitating contact operation by a user and instantaneously discriminating a design part (a display portion) even when viewed.SOLUTION: A touch panel input operation device comprises: a touch panel member 110 having a plurality of transparent electrode parts P1 and P2 arranged in a matrix in an X axis direction and a Y axis direction; a light guide member disposed behind the touch panel member; a light source for guiding light to the light guide member; and a transparent design part used as an operation index and a cubic shape part by a recess and protrusion part, on the front surface side of an operation surface. A composition of an electrode part Pc between the portion of an electrode part P1 in the X axis direction and the portion of an electrode part P2 in the Y axis direction, corresponding to a recess and protrusion of the cubic shape part is obtained using the impermeable electrode part Pc excellent in flexibility or ductility to the transparent electrode parts P1 and P2.

Description

  The present invention relates to a touch panel input operation device.

  As a conventional touch panel input operation device for a vehicle, for example, there is one disclosed in Patent Document 1. This vehicle touch panel input operation device is provided with an input device including a touch pad for receiving a touch operation from a user on a steering wheel of the vehicle, and, for example, an operation for scrolling a car navigation device according to the touch operation, an audio A vehicle touch panel input operation device for operating an in-vehicle electronic device such as a device volume setting or music selection selection display from a list is disclosed.

By the way, with respect to the touch pad used in the touch panel input operation device for a vehicle described in Patent Document 1, in many cases, the touch coordinates are detected by a capacitance method that is excellent in terms of lightness of operation. At that time, it is known that electrodes are usually formed in a matrix in the touch area using a metal conductor material such as silver or copper. However, since materials such as silver and copper are non-translucent and cannot be used to illuminate the touch area when used in dark places such as at night, the display area of the touch area can be visually recognized. There was a problem that it couldn't be done and entered incorrectly.
As a means for transmitting and illuminating the display portion of the touch panel from behind as a means to consider this point, as disclosed in Patent Document 2, the touch panel sheet is formed to be transparent or translucent so that light can be transmitted. A part of the design is printed so that light can be transmitted. Furthermore, by making it convex or concave with respect to the periphery of the operation unit, the position of the operation unit on the operation panel or the touch panel sheet is clarified, and the operability with respect to the touch operation is improved.

JP 2009-298285 A JP 2010-179735 A

  By the way, as an electrode of the capacitive touch panel sheet described in Patent Document 2 or the like, there is generally a method of using a transparent electrode such as ITO (indium tin oxide), for example, in order to transmit and illuminate the touch panel and the panel sheet. . However, the transparent conductive layer made of ITO itself has a weak flexibility, and when the touch sensor sheet is formed in a convex shape or a concave shape, it is usually formed using a method such as pressure forming or vacuum forming. At that time, since the transparent electrode is low in flexibility, the transparent electrode may be disconnected, which may cause a phenomenon that the transparent electrode does not function as a sensor sheet. Therefore, when forming a convex shape, a concave shape, or the like, it is necessary to set it so that it is relatively flat and does not be bent extremely. For this reason, even in terms of design, there is a risk that the position of the operation unit that looks due to the unevenness is insufficiently defined, resulting in a decrease in operability.

  Therefore, the present invention has been made paying attention to the above-described problems, and the object of the present invention is to make it easy for the user to perform a contact operation and to instantly identify the design portion (display location) even when visually recognized. It is in providing the touch panel input operation apparatus which can be performed.

  In order to solve the above-described problems, the present invention has a plurality of capacitance-type capacitive elements for detecting a position in contact with an operation surface. A touch panel member made of a transparent material having a transparent electrode portion disposed thereon, a light guide member disposed behind the touch panel member, and a light source for guiding light to the light guide member, The operation surface of the touch panel member has a transparent design portion serving as an operation index and a three-dimensional shape portion formed by an uneven portion, and is provided on the back side of the operation surface at the uneven portion portion of the three-dimensional shape portion. The touch panel input operation device is characterized in that a corresponding electrode part composition is made of an impermeable electrode part having excellent flexibility or stretchability with respect to the transparent electrode part. By configuring in this way, the display design portion can be satisfactorily transmitted by the transparent electrode portion arranged on the back side which is the display design of the touch panel member, and the operation surface of the touch panel input operation device Because it is possible to perform a contact operation on the detected object (fingertip) with the three-dimensional shape part serving as the operation index as a reference on the surface side of the touch panel, the touch panel member itself of the touch panel input operation device can be operated by touch with the fingertip without visually confirming Can be performed.

  According to claim 2, in the touch panel input operation device according to claim 1, the transparent electrode portion is made of ITO, CNT, metal nanowire, transparent conductive polymer, and a mixed material thereof, and the flexibility or The impermeable electrode portion having excellent stretchability is characterized by comprising a silver paste, a copper paste, and a mixed material thereof. By configuring in this way, a transparent electrode portion can be secured, so that the transparent design portion can be brightly transmitted and illuminated, and the electrode portion excellent in flexibility or extensibility is formed into a three-dimensional shape portion by an uneven portion. By disposing in, it is possible to eliminate energization failure due to disconnection or the like, and it is possible to form a stable touch panel member.

  Further, in claim 3, in the touch panel input operation device according to claim 1 or 2, the electrode portion located in a region excluding the region of the design portion is made of an impermeable material having excellent flexibility or stretchability. Since it is possible to suppress the resistance value of the electrode portion by being formed of an electrode material (silver paste, copper paste, and a mixed material thereof), whether or not the touch panel member is touched The detection sensitivity of the coordinates of the electrode part can be maintained satisfactorily.

  According to a fourth aspect of the present invention, in the touch panel input operation device according to any one of the first to third aspects, the impermeable electrode portion having excellent flexibility or stretchability is formed in a mesh shape. With this feature, when at least a part of the touch area where bending or stretching occurs is transmitted and illuminated, it is possible to minimize deterioration in illumination quality (shadow appearance due to the electrode portion).

  In the present invention, a transmission having an operation surface that comes into contact with a detection object that performs an input operation, and a plurality of transmissive electrode portions arranged by a capacitance method for detecting a position in contact with the operation surface. A touch panel member made of a conductive material, a light guide member disposed behind the touch panel member, and a light source for introducing light into the light guide member, and an operation index on the operation surface of the touch panel member The composition of the electrode part corresponding to the uneven part of the three-dimensional shape part provided on the back side of the operation surface is provided with the transparent design part and the three-dimensional shape part by the uneven part. The touch panel input operation device is characterized by using an impermeable electrode portion that is excellent in flexibility or stretchability. By configuring in this way, the display design portion can be satisfactorily transmitted by the transparent electrode portion arranged on the back side which is the display design of the touch panel member, and the operation surface of the touch panel input operation device Because it is possible to perform a contact operation on the detected object (fingertip) with the three-dimensional shape part serving as the operation index as a reference on the surface side of the touch panel, the touch panel member itself of the touch panel input operation device can be operated by touch with the fingertip without visually confirming Thus, the intended purpose can be achieved.

1 is a configuration diagram of a system including a touch panel input operation device according to a first embodiment of the present invention. The schematic diagram of the driver's seat side vicinity in the vehicle of the motor vehicle in which a touch-panel input operation device is mounted. FIG. 3 is an exploded perspective view showing the configuration of the touch panel input operation device. FIG. 4 is an assembled cross-sectional view of the main part in the first embodiment in which a touch panel input operation device is provided at a grip part of a steering wheel of a vehicle. FIG. 5 is a cross-sectional view illustrating a main part in which a touch panel member of the touch panel input operation device is partially enlarged. FIG. 6 is a plan view illustrating a touch panel member that is a contact operation unit of the touch panel input operation device. FIG. 7 is a plan view showing a state before applying a coating film (design part) provided on the front surface side of the touch panel member of FIG. FIG. 8: is a top view which shows the state before the printing of the touchscreen member in the 2nd Embodiment of this invention, and the enlarged view of the principal part.

  Hereinafter, an input device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the touch panel input operation device according to the first embodiment is an input operation device 100 mounted on a vehicle such as an automobile. When a user (usually a driver) of the vehicle 1 operates the input operation device 100, the control device 1000 causes the in-vehicle electronic device 20 to perform various operations according to the operation.

(Configuration of vehicle 1)
As shown in FIG. 2, the vehicle 1 includes a steering 10 and an in-vehicle electronic device 20.

  The steering 10 is a part of the steering device of the vehicle 1 and includes a main body 11 and a steering wheel 12.

  The main body 11 is a spoke connected to a steering shaft (not shown) of the vehicle 1 and includes an input operation device 100 on the right side. The main body 11 is formed with a mounting hole (not shown) that matches the shape of the input operation device 100. By attaching the input operation device 100 to the attachment hole, only an operation surface described later of the input operation device 100 is exposed.

  The steering wheel 12 is a grip member of a ring-shaped handle attached to the main body 11 and gripped when the driver steers the vehicle 1.

The in-vehicle electronic device 20 is an audio device, a car navigation device, or the like, and is electrically connected to a control unit 200 described later, and operates according to a control signal received from the control unit 200.
The on-vehicle electronic device 20 displays an image corresponding to the operation of the display unit 21.

(Configuration of control device 1000)
The control device 1000 includes an input operation device 100, a control unit 200, and a storage unit 300.

  As shown in FIG. 3, the input operation device 100 includes a touch panel member 110, an illumination unit 120 that displays the touch panel member 110 in an illuminated manner, and a switch mechanism 130.

  When the user performs an operation of tracing a predetermined locus on the operation surface with a thumb or the like (hereinafter referred to as a gesture operation), the touch panel member 110 is controlled by the control unit 200 described later. A touch pad device that detects a position where a thumb or the like touches the operation surface, and a position at which a first sheet-like member 111 made of a transparent material serving as a surface cover and a detected object such as a thumb come into contact with the operation surface And a second sheet-like member 112 made of a permeable material provided with a sensor for detecting the above.

  In the touch panel member 110 in the present embodiment, a spacer 113 made of a transparent resin material for protection is disposed behind the sheet-like members 111 and 112.

  The spacer 113 is located on the back surface side of the second sheet-like member 112, and is formed in accordance with the shape of the touch panel member 110 composed of the first sheet-like member 111 and the second sheet-like member 112 that are integrally formed, These members retain these shapes when a pressure is applied from the front side of the touch panel member 110 by a user operation. If the strength of the touch panel member 110 is sufficient, the spacer 113 may not be disposed.

  The illuminating unit 120 includes a light guide member (light guide) 121 made of a transparent synthetic resin material serving as a surface light source, a light source 122 made of LEDs arranged at an end of the light guide member 121, and the light source 122. A flexible printed wiring board 123 made of a flexible material to be mounted, and is provided so that light from the light source 122 enters from the end of the light guide member 121, and the light emitted from the light guide member 121 is surface-touched. Transmission illumination is performed from behind the member 110.

  In addition, in order to maintain good illumination effects such as illumination efficiency and uniform illumination by the light guide member 121, a reflective sheet 124 is disposed on the back side of the light guide member 121 as in this embodiment, and the light guide member 121 The diffusion sheet 125 may be disposed on the surface side.

  The touch panel member 110 and the illumination unit 120 are fixed and held by the lower holder 140 and the upper holder 150.

  In this case, the lower holder 140 is a box-shaped member formed of synthetic resin or the like, and is provided so that the respective parts 111 to 113 of the touch panel member 110 and the illumination unit 120 are arranged on the front side. ing.

  The upper holder 150 is a lid that covers the respective portions 111 to 113 of the touch panel member 110 and the illumination unit 120 from the front side, and has an opening that exposes the operation surface of the first sheet-like member 111. It is formed from a synthetic resin or the like.

  The switch mechanism 130 is formed of a circuit board 131 made of an insulating hard material and a push button switch 132 mounted on the circuit board 131. Power is supplied to the vehicle body via the circuit board 131, a signal from the touch panel member 110 is transmitted to the control unit 200, or the flexible printed wiring board 123 on which the light source 122 is mounted is connected to the circuit board 131. It is provided so that it can be electrically routed through.

  A lower case 160, which is a box-shaped member made of synthetic resin or the like, is provided behind the switch mechanism 130, and the circuit board 131 on which the push button switch 132 constituting the switch mechanism 130 is mounted is stored in the lower case 160. To be held fixed.

  Here, when the user performs an operation of pressing the operation surface of the touch panel member 110 of the input operation device 100 (hereinafter referred to as a pressing operation), the push button switch 132 of the switch mechanism 130 is pressed, and a predetermined input signal is transmitted to the control unit 200. Send to. The pressing operation is performed when control different from control by gesture operation on the operation surface of the input operation device 100 is executed.

  The first sheet-like member 111 that is a surface cover that constitutes a part of the touch panel member 110 provided in the input operation device 100 is formed of a sheet-like member from a transparent insulating material such as acrylic resin, and performs a gesture operation. When an operation is performed, an operation surface touched by a user's finger or the like is provided.

  In addition, the operation surface of the first sheet-like member 111 in the first embodiment has irregularities, whereby a step is formed on this operation surface. Such an operation surface is composed of a three-dimensional shape portion 111 </ b> D that is an uneven portion including a flat portion 111 a, a raised portion 111 b, and a hollow portion 111 c.

  In addition, the second sheet-like member 112 in the present embodiment is integrally formed with the first sheet-like member 111 by drawing processing such as pressure forming, whereby the touch panel member 110 is formed.

    By being integrally formed in this way, the first sheet-like member 111 and the second sheet-like member 112 become a single sheet as the touch panel member 110, and the raised portion 111b and the depressed portion 111c that the operation surface has. A stepped shape such as is formed by a bent portion of the single sheet.

  The flat surface portion 111a of the touch panel member 110 is a flat portion of the first sheet-like member 111 that is a surface cover.

  The raised portion 111b is a portion that rises so as to rise from the flat surface portion 111a in the front side direction. At this time, the operation surface is formed as a raised portion 111b made of unevenness that forms a contour portion serving as an operation index of the operation surface. From the front side, it can be seen that a plurality of raised portions 111b formed in an arc shape are arranged at a predetermined interval so as to substantially surround the circle. As shown in FIG. 3, “front side” refers to the upper side in the figure with respect to the input operation device 100, and “back side” refers to the opposite side.

  The recessed portion 111c is located at the approximate center of the operation surface and is a recessed portion so as to sink in the back side direction from the flat surface portion 111a, and is formed on the inner side of the raised portion 111b arranged in a circular shape.

  The planar portion 111a, the raised portion 111b, and the recessed portion 111c are formed so that their cross-sectional shapes are smoothly connected to each other so as not to hinder the user's gesture operation.

  In addition, the design portion D made of a coating layer provided on the touch panel member 110 has a display color layer made of transmissive ink such as white on the surface side of the operation surface of the first sheet-like member 111. A ground color layer made of, for example, black light-shielding ink is provided as the opaque design portion D2 on the surface side of the touch panel member 110 excluding the region of the transparent design portion D1 due to the display color layer. It has been subjected.

  In this case, in this embodiment, the design portion D by the coating layer composed of the display color layer and the ground color layer is applied to the surface side of the operation surface of the first sheet-like member 111 by coating, and the raised portion By partially removing the ground color layer (impermeable design portion D2) located at 111b and the ground color layer (impermeable design portion D2) adjacent to the raised portion 111b by means of laser processing or the like The display color layer is exposed to form a transparent design portion D1. (In the present embodiment, four transparent design portions D1 each having an arrow shape are formed at four depressions 111c, and a transparent design D1 having a circle indicating the center position of the depression 111c is formed.)

  The second sheet-like member 112 is a transparent sheet member having a touch sensor portion 1120 including a plurality of electrode portions P1 and P2 for detecting the position of a detection target such as a finger, and is a surface cover. The first sheet-like member 111 is provided on the back side.

  The second sheet-like member 112 includes a layer having a first sensor array 1120a composed of a plurality of electrode portions P1 for detecting the position of the detection target in the X-axis direction (lateral direction), and the Y-axis direction ( A layer having a second sensor array 1120b composed of a plurality of electrode portions P2 for detecting the position of the detection object in the vertical direction) is schematically configured. By combining the first sensor row 1120a and the second sensor row 1120b, the second sheet-like member 112 results in a plurality of electrode portions P1 in the X-axis direction and a plurality of electrode portions in the Y-axis direction. Since P2 is arranged in a matrix, the shape of the touch panel member 110 made of a sheet-like member is formed in a rectangular shape.

  On the end side of each sensor row 1120a, 1120b provided on the touch panel member 110, the electrode portion P1 located on the end side of the sensor row 1120a in the X-axis direction is connected via a conductive terminal portion Ta. Each lead line w1 is drawn out, and the lead line w2 is drawn out through the conductive terminal portion Tb at the electrode part P2 located on the end side of the sensor row 1120b in the Y-axis direction. Each of the lead lines w1 and w2 is covered with a flexible sheet made of an insulating material, is electrically routed to the outside, and is electrically connected to the control unit 200.

  The electrode part P1 in the X-axis direction and the electrode part P2 in the Y-axis direction in the present embodiment form a detection electrode by a transparent electrode part basically made of ITO, and an uneven part provided on the touch panel member 110. Only the electrode portions P1 and P2 corresponding to the raised portions 111b where the three-dimensionally shaped portion 111D is formed are impermeable electrode portions Pc excellent in flexibility or stretchability (elongation), for example, a non-conductive electrode portion Pc. The detection electrode is formed by the permeable electrode portion. In this case, the flexible and impermeable electrode portion Pc is provided so as to surround the region of the raised portion 111b and the raised portion 111b having an uneven shape as an operation index, and is provided in a region adjacent to the raised portion 111b. It is provided in the location which opposes the transparent design part D1 provided along.

  Note that the transmissive design portion D1 formed on the touch panel member 110 in the present embodiment is configured so as to be transmitted and illuminated through the light guide member 121 by the light from the light source 122, and a transmissive electrode portion (detection made of ITO). The electrodes are provided so that transmitted illumination is displayed from behind through the electrode portions P1 and P2 formed by the electrodes.

  In the present embodiment configured as described above, when a detection object such as a finger touches the first sheet-like member 111 that is the front surface cover of the touch panel member 110, a plurality of electrode portions P1 and P1 located on the back surface side thereof. The capacitance between the touch sensor unit 1120 made of P2 and the detected object changes. Since the control unit 200 and the touch sensor unit 1120 including the electrode units P 1, P 2, and Pc are electrically connected, the control unit 200 includes the static electrodes of the electrode units P 1, P 2, and Pc in the touch sensor unit 1120. Capacitance change can be detected. The control unit 200 calculates an input coordinate value (X, Y) indicating the contact position of the detection target based on the change in capacitance. The input coordinate value is a coordinate value in the XY coordinate system in each touch sensor unit 1120 set in advance on the operation surface. The input coordinate value is the X coordinate assigned to the center of gravity position of the distribution of the change in capacitance in the X direction (for example, the position of the touch sensor unit 1120 where the capacitance is higher than a certain threshold value and the largest), It is represented by the Y coordinate assigned to the center of gravity position (for example, the position of the touch sensor unit 1120 where the capacitance is higher than a certain threshold value and the largest) in the Y direction. The control unit 200 calculates the input coordinate value (X, Y) by calculating the X coordinate and the Y coordinate.

  At this time, the level difference of the first sheet-like member 111 between the first sensor row 1120a composed of the plurality of electrode portions P1 in the X-axis direction and the second sensor row 1120b composed of the plurality of electrode portions P2 in the Y-axis direction. Since the touch sensor part 1120 is formed by the electrode part Pc made of a silver paste, which is a material that has a high conductivity and can be stretched only at the electrode part corresponding to the shape (the raised part 111b), the touch sensor part 1120 is formed on the touch panel member 110. Even if there are irregularities, the touch sensor part 1120 can be formed without cracks by the electrode part Pc having excellent flexibility and stretchability, and the operation surface having a stepped shape such as the raised part 111b. Even if it is gesture operation performed above, the control part 200 can detect the change of the electrostatic capacitance in each sensor favorably.

  As shown in FIG. 1, the control unit 200 includes a CPU (Central Processing Unit) and the like, and executes an operation program stored in the storage unit 300 to perform various processes and controls. At least a part of the control unit 200 is configured by various dedicated circuits such as an ASIC (Application Specific Integrated Circuit).

  The storage unit 300 includes a ROM (Read Only Memory), a RAM (Random Access Memory), a flash memory, and the like, and includes a work area of a CPU that configures the control unit 200, a program area that stores an operation program executed by the CPU, and data It functions as an area.

  The program area stores an operation program such as a program for executing the in-vehicle electronic device control process.

  In the data area, as shown in FIG. 1, a gesture dictionary G, corresponding motion data C, a set value Q that is a predetermined value of the gesture feature amount, and the like are stored in advance.

  The gesture dictionary G is data necessary for recognizing a gesture operation being performed, and includes a plurality of patterns indicating trajectory features drawn by the gesture operation. The pattern indicating the feature of the gesture operation is composed of a combination of each component of the gesture feature amount. In the present embodiment, this pattern is a pattern indicating the feature of “a gesture operation based on a raised portion”.

  The corresponding operation data C is data of a control signal that causes the in-vehicle electronic device 20 to execute a predetermined operation. There are a plurality of corresponding action data C, each of which is associated with a plurality of patterns included in the gesture dictionary G. For example, in the pattern indicating the feature of the arc-shaped gesture operation along the raised portion 111b, the command data for transmitting the volume control signal for causing the in-vehicle electronic device 20 to change the audio volume is associated as the corresponding operation data C. And stored in advance in the data area.

  The setting value Q is data of a predetermined value of the gesture feature amount, and is data serving as a trigger for transmitting a control signal to the in-vehicle electronic device 20. The setting value Q is associated with each of a plurality of patterns included in the gesture dictionary G. That is, there are a plurality of setting values Q. Here, the gesture feature quantity selected as a comparison target with the set value Q is, for example, the length of a trajectory in a trajectory in which a plurality of input coordinate values are connected by a straight line in time series.

About operation | movement of the control apparatus 1000, the gesture dictionary G, corresponding | compatible action data C, the setting value Q, and each role are described briefly.
1) The gesture dictionary G is used for recognizing to which pattern a predetermined gesture operation belongs (that is, what kind of gesture operation).
2) The corresponding operation data C is used to determine what control signal is transmitted to the in-vehicle electronic device 20 according to the gesture operation recognized based on the gesture dictionary G.
3) The set value Q is used to determine what value the gesture feature value related to the recognized gesture operation reaches when the control signal based on the corresponding action data C is transmitted.

  Each data stored in the storage unit 300 is appropriately stored as a default value or by a user's own operation using a known data registration method.

  In the embodiment of the present invention, the touch panel member 110 is provided in order to be able to operate the operation surface of the touch panel member 110 with a fingertip in a state where a grip portion which is a handle operation portion of the steering wheel 10 is gripped. It can be well discriminated by the design portion D composed of a coating layer (display color layer and ground color layer), in particular in the present embodiment, the white transparent design portion D1 composed of an arrow shape.

  Further, in a dark place such as at night, the transmissive design portion D1 made of transmissive ink is brightly illuminated by the illumination light from the light source 122, so that it can be immediately determined. At this time, since the detection electrode is formed by a plurality of transparent electrode portions P1 and P2 made of ITO for detecting the position of a detection object such as a finger disposed behind the design portion D, the transmission electrode The design portion D1 position can be brightly transmitted and transmitted without lowering the brightness, and the transparent design portion D1 can be immediately identified. The position of the touch panel input operation device can be determined even at night. It can confirm favorably and the touch operation of the touch panel member 110 can be performed favorably.

  In addition, by configuring the operation surface of the touch panel member 110 as a three-dimensional shape portion 111D by the concavo-convex portion, on the surface side of the operation surface of the touch panel input operation device, the detection target (fingertip) is based on the raised portion 111b serving as an operation index Since the touch operation can be performed, the touch panel member 110 itself of the touch panel input operation device can be operated by touch with a fingertip without visually confirming the touch panel member 110 itself.

  In this case, even if the three-dimensionally shaped portion 111D is formed by the uneven portion (the raised portion 111b) on the operation surface by drawing the touch panel member 110 such as compressed air molding, the region of the raised portion 111b having the uneven shape as the operation index and the raised portion The electrode part Pc itself can be formed without breaking by forming the electrode part Pc with a silver paste that is a material that is impermeable but flexible and stretchable so as to surround the part 111b. In addition, electrical conductivity can be maintained well.

  Although not shown in the figure, in the touch panel input operation device, an electrode part located in a region excluding the region of the transparent design part D1 is made of an impermeable electrode material (silver paste, copper paste) excellent in flexibility or stretchability. , And a mixed material thereof), it becomes possible to suppress the resistance value of the electrode part, so that the touch sensitivity to the touch panel member 110 and the detection sensitivity of the coordinates of the electrode parts P1, P2 are good. Can be maintained.

  As shown in FIG. 8, in the touch panel input operation device, for example, non-permeable electrode portions P1, P2 made of, for example, silver paste and excellent in flexibility or stretchability are formed, and the non-permeable electrode portions P1, P2 are formed. By forming P2 in a mesh shape, when at least a part of the touch area where bending or stretching occurs is transmitted and illuminated, deterioration in illumination quality (shadow appearance due to electrode portions P1 and P2) can be minimized. it can.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, in the above-described embodiment, the design portion D is applied to the surface side of the operation surface of the first sheet-like member 111 by means such as painting, but the surface of the operation surface of the first sheet-like member 111 The design part D may be formed on the side by means of printing or the like, and may be applied to the back surface of the sheet-like member 111 by printing or painting. The transparent design of the design part D The display form of the part D1 is not limited to the arrow shape, but may be formed in an arbitrary form such as an arc-shaped transmission design part D1, and the illumination brightness such as the transmitted light amount may be arbitrarily set.

  Moreover, although the light guide member which has translucency for transmitting illumination of the transparent design part D1 arrange | positioned behind the touch panel member 110 was formed with the colorless and transparent synthetic resin, it is orange as an illumination color depending on the case. The transmissive design portion D1 may be transmissively illuminated by forming a color or the like, or may be transmissively illuminated by forming another color.

  Further, in the embodiment described above as the shape of the raised portion 111b and the like, the raised portions 111b each having an arc shape are formed in combination with four circles. The portion 111b may be formed at four vertical and horizontal positions, and may be formed in accordance with the arrow shape which is the shape of the transparent design portion D1, depending on the case. In short, the position of the raised portion 111b The electrode portion Pc in the region corresponding to is formed of an impermeable electrode material (silver paste, copper paste, and a mixed material thereof) excellent in flexibility or stretchability. Any electrode can be used as long as the electrode part Pc itself can be formed without breaking and can maintain good electrical conductivity.

  In the above-described embodiment, a vehicle such as an automobile has been described as an example of a vehicle on which the input operation device 100 is mounted. However, the present invention is not limited to this and may be mounted on a ship or an agricultural machine. Is possible.

  In the present embodiment, the plurality of electrode portions are arranged in a matrix in the vertical and horizontal directions in the X-axis direction and the Y-axis direction, but the same effect can be obtained in a type in which the plurality of electrode portions are arranged in the vertical direction. It is possible to obtain.

  The present invention is suitable for a touch panel input operation device having an uneven portion.

DESCRIPTION OF SYMBOLS 1 ... Vehicle 10 ... Steering 11 ... Main-body part 12 ... Steering wheel 20 ... In-vehicle electronic device 21 ... Display part 100 ... Input operation device 110 ... Touch panel member 111 ... 1st sheet-like member (surface cover)
111a ... Plane portion 111b ... Raised portion 111c ... Depressed portion 111D ... Solid shape portion 112 ... Second sheet-like member 1120 ... Touch sensor portion 1120a ... First sensor row 1120b ... Second sensor row 113 ... Spacer 120 ... Illumination Part 121: Light guide member 122 ... Light source (LED)
123: Flexible printed circuit board 124 ... Reflective sheet 125 ... Diffusion sheet 130 ... Switch mechanism 131 ... Circuit board 132 ... Push button switch 140 ... Lower holder 150 ... Upper holder 160 ... Lower case 200 ... Control unit 300 ... Storage unit 1000 ... Control Apparatus D ... Design part D1 ... Transparent design part D2 ... Non-transparent design part P1 ... Electrode part (transparent electrode part)
P2 ... Electrode part (permeable electrode part)
Pc ... Electrode part (impermeable electrode part)

Claims (4)

  It consists of a permeable material that has an operation surface with which a detection object that performs an input operation comes into contact, and is provided with a plurality of permeable electrode portions by a capacitance method for detecting the position in contact with the operation surface. A touch panel member; a light guide member disposed behind the touch panel member; and a light source that guides light to the light guide member. The operation surface of the touch panel member has transparency as an operation index. The composition of the electrode part corresponding to the uneven part of the three-dimensionally shaped part provided on the back side of the operation surface is provided in the transparent electrode part. On the other hand, a touch panel input operation device comprising an impermeable electrode portion excellent in flexibility or stretchability.   The transparent electrode part is made of ITO, CNT, metal nanowire, transparent conductive polymer, and a mixed material thereof, and the non-permeable electrode part excellent in flexibility or stretchability is silver paste, copper The touch panel input operation device according to claim 1, comprising a paste and a mixed material thereof.   The electrode part located in the area | region except the area | region of the said design part is formed with the impervious electrode material excellent in the softness | flexibility or extendability, The Claim 1 or Claim 2 characterized by the above-mentioned. Touch panel input operation device. The touch panel input operation device according to any one of claims 1 to 3, wherein the impermeable electrode portion excellent in flexibility or stretchability is formed in a mesh shape.

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