JP2010205438A - Operation panel of electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an electronic apparatus from performing an action unintended by a user even if the user touches a touch switch provided on an operation panel of the electronic apparatus inadvertently. <P>SOLUTION: On a decoration panel 33, there are formed a concave portion 33b on a front surface 33a and a convex portion 33f of a rear surface 33c to make a pair. On the other hand, on a touch panel 34 there are formed a inserting-hole 34b into which the convex portion 33f of the decoration panel 33 can be inserted and four tongue pieces 34d extending toward the inside of the inserting hole 34b from an periphery part 34c of the inserting-hole 34b, and on each of the surfaces of the tongue pieces 34d, there is fixed an electrode 38 respectively. Furthermore, the touch panel 34 is pasted on the rear surface 33c of the decoration panel 33 with a double-sided tape 39 in-between in a state of the convex portion 33f of the decoration panel 33 being inserted into the inserting-hole 34b, and thereby, each of the tongue pieces 34d and the electrode 38 contacts with or comes near the convex portion 33f of the decoration panel 33. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an operation panel of an electronic device including a touch switch.

2. Description of the Related Art Conventionally, an operation panel that is equipped with a touch switch for receiving an operation instruction from a user and is mounted on an electronic device is known.
In the operation panel of such an electronic device, a capacitive switch capable of detecting a touch operation on the touch switch by the user is arranged on the back surface of the decorative panel, and the user lightly touches the touch switch (the surface of the decorative panel). The capacitance switch detects a touch operation on the touch switch only by touching (see, for example, Patent Document 1).

JP 2008-46276 A (8th and 9th pages, FIGS. 5 and 6)

  However, in the operation panel of the electronic device as described above, when the user unintentionally touches the touch switch (the surface of the decorative panel), the capacitance switch performs a touch operation on the touch switch. In some cases, an electronic device performs an operation that is not intended by the user. In particular, when the electronic device is a karaoke device, for example, when the user unintentionally touches a performance stop switch or power switch as a touch switch, the performance stop or power off operation is performed. If it is done during, it makes the user who is singing unpleasant.

  The present invention has been made in view of such problems, and the purpose of the present invention is that even when the user unintentionally touches the touch switch provided in the operation panel of the electronic device, This is to prevent the electronic device from executing an operation that is not intended by the user.

  The operation panel of the electronic device according to claim 1 made to solve the above problems (10: In this column, in order to facilitate understanding of the invention, the “Mode for Carrying Out the Invention” column is provided as necessary. Is attached to the electronic device, and has a housing (31) having an opening (31a), and the case (31) having the opening (31a), A light emitting portion (36) disposed inside the housing and capable of radiating visible light from the opening to the outside is formed in a plate shape with a substrate (32) mounted on the mounting surface and a transparent material. The touch switch (338) that covers at least a part of the opening of the housing and is positioned in front of the light emitting unit and receives a touch operation by a user is a portion of the surface of the front part of the light emitting unit. In The decorative panel (33) to be formed is formed in a sheet shape with a material having permeability and elasticity, and is arranged between the substrate and the decorative panel, and is turned on and off by a touch operation on the touch switch by the user A touch panel (34) having an electrostatic capacitance switch (38) to be switched, and a light emitting unit that is arranged inside the housing and controls the light emitting unit to emit visible light based on an instruction from an electronic device on which the operation panel is mounted. And a control unit (35) capable of detecting the presence or absence of a touch operation on the touch switch based on an output signal from the capacitance switch and outputting a signal indicating the detection to the electronic device (1). Prepare.

  Of these, the decorative panel includes a concave portion (33b) having an inner peripheral surface (33d) capable of surrounding a user's fingertip and a bottom portion (33e) surrounded by the inner peripheral surface, and the concave portion of the decorative panel. An outer peripheral surface (33g) having a shape extending along the inner peripheral surface and a top portion (33h) having a shape extending along the bottom are projected from the surface (33c) opposite to the surface on which the light is formed. The convex part (33f) which it has is formed in a pair. The touch panel includes an insertion hole (34b) into which the convex portion can be inserted, and a plurality of tongue pieces (34d) extending from the peripheral edge portion (34c) of the insertion hole toward the inside of the insertion hole. The capacitance switches are formed in the same number as the plurality of tongue pieces, and the capacitance switches are respectively attached to the plurality of tongue pieces.

  Further, the touch panel is attached to the decorative panel in a state where the convex portion of the decorative panel is inserted into the insertion hole, so that the plurality of tongue pieces are in contact with the outer peripheral surface and the capacitance switch. Is close to or in contact with the outer peripheral surface. The control unit determines that a touch operation has been performed on the touch switch when two or more of the capacitance switches are simultaneously turned on, and outputs a signal indicating that effect. Output to the electronic device.

  In addition, the user touches the touch switch unintentionally, such as when the user's fingertip just touches the surface of the decorative panel or when the user's fingertip is not inserted deep into the recess of the decorative panel. 2 or more of the plurality of capacitance switches are not turned on at the same time, and the control unit does not determine that a touch operation on the touch switch has been performed. Of course, in this case, the control unit does not output a signal indicating that the touch operation to the touch switch has been performed to the electronic device.

  Therefore, according to the operation panel of the electronic device of the present invention, even when the user unintentionally touches the touch switch, the electronic device is prevented from performing an operation not intended by the user. Can do.

  Further, according to the operation panel of the electronic device of the present invention, the malfunction prevention level can be variously changed according to the type of the touch switch by adjusting the sensitivity of the capacitance switch. be able to.

  In the operation panel of the electronic device according to claim 2, when the control unit continuously detects that all of the capacitance switches are simultaneously turned on for a predetermined period of time, the control unit moves to the touch switch. A signal indicating that it is determined that the touch operation has been performed is output.

  According to the operation panel of the electronic device of the present invention configured as described above, the state where all the capacitance switches are simultaneously turned on means that the finger inserted into the recess of the decorative panel is located on any side surface of the recess. Since it is considered that the finger is inserted in the center of the recess without being biased, it can be determined that the finger has been inserted with the intention of the user to operate, so that the operation can be performed more accurately.

  According to a third aspect of the present invention, there is provided the operation panel of the electronic device, wherein the touch panel is attached to the decorative panel by being brought into contact with a portion outside the convex portion on the back surface of the decorative panel.

  According to the operation panel of the electronic device of the present invention configured as described above, the touch panel itself is bent by the convex portion on the back surface of the decorative panel and comes into contact with the slope (outer peripheral surface) of the convex portion. Thus, an operator who attaches the touch panel to the decorative panel can easily attach the touch panel accurately from the upper part of the back surface of the decorative panel which is the convex portion of the decorative panel.

  Further, in the operation panel of the electronic device according to claim 4, the touch panel includes a plurality of tongue pieces extending toward the inside of the insertion hole from a position where the plurality of tongue pieces are divided at an equal angle of a peripheral edge portion of the insertion hole. It is formed so that it may do.

  According to the operation panel of the electronic apparatus of the present invention configured as described above, the same number of capacitance switches as the plurality of tongue pieces attached to each of the plurality of tongue pieces are arranged at an equal angle inside the insertion hole. . As a result, the state in which all of the capacitance switches are turned on simultaneously means that the finger inserted into the recess of the decorative panel is not biased to any side of the recess and the finger is inserted into the center of the recess. Since it is considered that the user has the intention to operate, it can be determined that the finger has been inserted, so that the operation can be performed more accurately.

1 is a block diagram illustrating a configuration of a karaoke apparatus 1. FIG. 2 is a block diagram illustrating a configuration of an operation panel 10. FIG. 2 is a schematic configuration diagram showing a configuration of an operation panel 10, (a) is a front view of a decorative panel 33, and (b) is a schematic explanatory diagram showing a configuration of a touch panel 34. FIG. (A) is AA sectional drawing of Fig.3 (a), (b) is BB sectional drawing (1) of Fig.3 (a), (c) is BB sectional drawing (2) of Fig.3 (a). ). It is a flowchart which shows a touch switch process.

Embodiments of the present invention will be described below with reference to the drawings.
[1. Description of configuration of karaoke apparatus 1]
As shown in FIG. 1, a karaoke apparatus 1 as an electronic device includes a housing 2, a CPU 14 that controls the karaoke apparatus 1 as a whole, and the following units connected to the CPU 14, that is, karaoke songs, dramas, movies, and the like. An operation panel 10 for performing a reservation operation of content, a video processing unit 11 for converting image information and the like into a video and outputting them to an external monitor 24, an MPEG decoder 12 serving as a means for reproducing MPEG video data, and music data for karaoke performance , Video data and other hard disk (HDD) 13 for storing various data, memory 15 for storing system programs and setting data necessary for various settings, LAN interface 16, RTC (Real Time Clock for time management) ) 17, MIDI sound source unit 1 that performs performance playback based on MIDI data (music data) 8. An audio processing unit 19 is provided which performs audio processing as appropriate by mixing the reproduced sound from the MIDI sound source unit 18 and the user's singing voice input from the microphone 23 and amplifying the output by the amplifier 20 and then outputting from the speaker 22. Yes.

Moreover, the housing | casing 2 has the opening part 2a in the front, The operation panel 10 is attached to this opening part 2a.
[2. Explanation of Configuration of Operation Panel 10]
As shown in FIG. 2, the operation panel 10 includes a housing 31, a substrate 32, a decorative panel 33, and a touch panel 34.

[2.1. Description of Configuration of Housing 31]
The casing 31 is formed in a box shape having an opening 31 a on the front surface when attached to the casing 2 of the karaoke apparatus 1.

[2.2. Explanation of Configuration of Substrate 32]
The substrate 32 is disposed inside the housing 31 and various electronic components such as a panel microcomputer 35, LEDs 36 as eight light emitting portions that can radiate visible light to the outside from the opening 31a of the housing 31, and an IC chip 37. Is mounted on the mounting surface 32a. In FIG. 2, only one LED 36 is shown.

  The panel microcomputer 35 mounted on the mounting surface 32 a of the substrate 32 is connected to eleven electrodes 38 as electrostatic capacitance switches attached to the touch panel 34 via the IC chip 37. In FIG. 2, only one electrode 38 is shown.

  The eight LEDs 36 are mounted on the mounting surface 32 a of the substrate 32 so that each of the eight LEDs 36 is disposed behind the touch switches 331 to 338 formed on the surface 33 a of the decorative panel 33.

[2.3. Description of makeup panel 33]
The decorative panel 33 is formed in a substantially square plate shape with a resin material such as acrylic having transparency, and is disposed so as to cover the opening 31 a of the housing 31 and to be positioned in front of the LED 36 of the substrate 32.

Further, as shown in FIG. 3A, touch switches 331 to 338 that receive a touch operation by the user are formed on the surface 33 a of the decorative panel 33.
First, a mark indicating a power switch is displayed on the left side of the front surface 33a of the decorative panel 33, and “power” is displayed below the mark. The mark portion of the decorative panel 33 is a power switch 331. The power switch 331 is a switch for accepting an instruction to turn on / off the power state of the karaoke apparatus 1 by the user.

  In addition, “music volume”, “microphone volume”, and “microphone echo volume” are displayed in order from the left when viewed from the front in the middle center of the surface 33a of the decorative panel 33, and the upper (upper) and lower ( (Lower row) Each switch is marked with a mark. The mark portions of the decorative panel 33 are a music volume switch (increase) 332, a microphone volume switch (increase) 334, and a microphone echo volume switch (increase) 336 in order from the left on the upper stage from the front. The music volume switch (decrease) 333, the microphone volume switch (decrease) 335, and the microphone echo volume switch (decrease) 337 are arranged in order from the lower left.

  The music volume switches 332 and 333 are switches for accepting an instruction to increase or decrease the music volume by the user. Further, the microphone volume switches 334 and 335 are switches for accepting an instruction to increase or decrease the microphone volume by the user. The microphone echo volume switches 336 and 337 are switches for accepting an instruction to increase or decrease the microphone echo volume by the user.

  Further, a concave portion 33b is formed on the right side of the front surface 33a of the decorative panel 33, and a mark indicating a performance stop switch is displayed around the concave portion 33b. Stop playing ”is displayed. The concave portion 33b and the mark portion of the decorative panel 33 serve as a performance stop switch 338. The performance stop switch 338 is a switch for accepting an instruction to stop the karaoke performance of the karaoke apparatus 1 by the user.

[2.4. Description of configuration of touch panel 34]
As shown in FIG. 3B, the touch panel 34 is formed in a sheet shape with a resin material such as PET having transparency and elasticity. An electrode 38 is formed as a thin film electrode on the surface 34 a of the touch panel 34. Furthermore, the front surface 34 a of the touch panel 34 is attached to the back surface 33 c of the decorative panel 33 via a double-sided tape 39.

  It should be noted that the electrode 38 has a smaller capacitance to the ground (the capacitance between the casings 31 when the casing 31 is made of metal) as the distance from the fingertip of the user who performs the touch operation on the decorative panel 33 is smaller. (Capacitance) increases.

Further, a pattern arranged on the touch panel 34 is connected to each electrode 38. Each electrode 38 is connected to the IC chip 37 mounted on the mounting surface 32a of the substrate 32 through the above-described pattern when the touch panel 34 and the substrate 32 are connected by a connector or the like.
[3. Description of Configuration and Operation of Touch Switches 331 to 338]
Next, the configuration and operation of the touch switches 331 to 338 will be described in the order of the touch switches 331 to 337 and the touch switch 338.

[3.1. Description of Configuration and Operation of Touch Switches 331 to 337]
As shown in FIG. 3A, the touch switches 331 to 337 are formed on a flat portion of the surface 33a of the decorative panel 33. The touch switches 331 to 337 are arranged on the surface 34a of the touch panel 34 behind the touch switches 331 to 337. The attached electrodes 38 are respectively disposed, and the LEDs 36 mounted on the mounting surface 32a of the substrate 32 are respectively disposed on the rear side. The electrode 38 is in contact with the back surface 33 c of the decorative panel 33, or close to the back surface 33 c of the decorative panel 33 via the double-sided tape 39.

  On the other hand, the panel microcomputer 35 uses the IC chip 37 that detects increase / decrease in the capacitance of the electrode 38 disposed behind each of the touch switches 331 to 337 when the capacitance increases from a predetermined threshold. A signal indicating that the finger is approaching the touch switch is received. Then, based on the received signal, the panel microcomputer 35 determines that the touch operation corresponding to the electrode 38 has been performed by the user and, on the other hand, if no signal is received, the touch switch corresponding to the electrode 38. It is determined that no touch operation is performed by the user. Furthermore, when the determination result is different from the determination result at the previous determination, the panel microcomputer 35 outputs a signal indicating the current determination result to the CPU 14 of the karaoke apparatus 1.

[3.2. Description of Configuration and Operation of Touch Switch 338]
Further, as shown in FIG. 3B, the touch switch 338 is formed in and around the recess 33b of the surface 33a of the decorative panel 33, and behind the touch switch 338, the surface 34a of the touch panel 34 is provided. Four attached electrodes 38 are arranged, and further, an LED 36 mounted on the mounting surface 32a of the substrate 32 is arranged behind.

  The concave portion 33b of the decorative panel 33 described above has an inner peripheral surface 33d capable of surrounding the user's fingertip and a bottom portion 33e surrounded by the inner peripheral surface 33d. Moreover, the convex part 33f is formed in the back surface 33c on the opposite side to the surface 33a in which the recessed part 33b of the decorative panel 33 is formed so that it may become a pair with the recessed part 33b. The convex portion 33f protrudes from the back surface 33c toward the LED 36 and has an outer peripheral surface 33g having a shape along the inner peripheral surface 33d of the pair of concave portions 33b and a top portion having a shape along the bottom portion 33e of the pair of concave portions 33b. 33h.

Further, the touch panel 34 is formed with an insertion hole 34b into which the convex portion 33f of the decorative panel 33 can be inserted, and four tongue pieces 34d extending from the peripheral portion 34c of the insertion hole 34b toward the inside of the insertion hole 34b. ing. In the present embodiment, the touch panel 34 is formed such that the plurality of tongue pieces 34d extend toward the inside of the insertion hole 34b from a position divided at an equal angle of the peripheral edge 34c of the insertion hole 34b. .
Then, on each surface of each tongue piece 34d which is also the surface 34a of the touch panel 34, the same number of electrodes 38 (shown as electrodes A to D in FIG. 3B) are attached.

  Further, the touch panel 34 is attached to the back surface 33c of the decorative panel 33 via the double-sided tape 39 in a state where the convex portion 33f of the decorative panel 33 is inserted into the insertion hole 34b, whereby each tongue piece 34d is attached to the decorative panel 33. Each of the electrodes 38 attached to the surface 34a of each tongue piece 34d is in contact with the outer peripheral surface 33g of the decorative panel 33 or through a double-sided tape 39. Close to the outer peripheral surface 33g of 33.

Then, the panel microcomputer 35 executes touch switch processing. Hereinafter, the touch switch process will be described with reference to the flowchart of FIG.
First, the panel microcomputer 35 receives a signal indicating the capacitance of each of the four electrodes 38 disposed behind the touch switch 338 via the IC chip 37 (S105 to S120). In this case, when the capacitance of each of the four electrodes 38 exceeds a predetermined threshold value, the panel microcomputer 35 informs which electrode 38 the user's finger has approached from the IC chip 37 with a signal. You may make it receive. Based on the received signal, the panel microcomputer 35 determines whether there are two or more electrodes 38 whose capacitance exceeds the threshold (S125). If there are two or more electrodes 38 whose capacitance exceeds the threshold value, the panel microcomputer 35 determines that a touch operation by the user has been performed on the touch switch 338 (S125: YES). On the other hand, when the number of the electrodes 38 whose capacitance exceeds the threshold is less than one, the panel microcomputer 35 determines that the touch operation by the user is not performed on the touch switch 338 (S125: NO). . Furthermore, the panel microcomputer 35 refers to the flag that stores the determination result at the previous determination, and determines whether or not the determination result is different from the determination result at the previous determination (S135, S155). If the determination result is the same as the determination result at the previous determination (S135: NO, S155: NO), the panel microcomputer 35 returns without doing anything. On the other hand, when the determination result is different from the determination result at the time of the previous determination (S135: YES, S155: YES), the panel microcomputer 35 outputs a signal indicating the current determination result to the CPU 14 of the karaoke apparatus 1 (S140). , S160), the flag is rewritten with the content indicating the current determination result (S145, S165), and the process returns.

 Further, in order to determine whether or not the touch operation by the user is more accurate (whether or not the center of the touch switch 338 is kept pressed for a certain period of time), the YES condition of S125 is set to “All electrodes 38 are on. In other words, it may be determined by determining whether or not the state in which all the electrodes 38 are on is maintained for a predetermined period, depending on how many times the NO determination in S135 is continued, that is, maintained.

[3.3. Explanation of LED lighting operation of touch switches 331 to 338]
Moreover, when the panel microcomputer 35 receives the signal from CPU14 of the karaoke apparatus 1 in which the said operation panel 10 is mounted, it performs the process according to the signal.

For example, when the received signal indicates an instruction to turn on any of the 11 LEDs 36, the corresponding LED 36 is controlled to irradiate visible light forward. In this case, the visible light emitted from the LED 36 travels forward through the touch panel 34 and the decorative panel 33, and the touch switch of the decorative panel 33 through which the visible light has passed is turned on to associate with the touch switch. That the function being executed is being performed.
[4. Effects of the embodiment]
Thus, according to the karaoke apparatus 1 of the present embodiment, when the user's fingertip just touches the periphery of the touch switch 338 of the decorative panel 33 or the user's fingertip is inserted to the back of the recess 33b of the decorative panel 33. When it is assumed that the user has unintentionally touched the touch switch 338, such as when the touch switch 338 is not touched, two or more of the four electrodes 38 arranged behind the touch switch 338 The panel microcomputer 35 does not determine that the touch operation to the touch switch 338 has been performed. Of course, in this case, the panel microcomputer 35 does not output a signal indicating that the touch operation to the touch switch 338 has been performed to the CPU 14 of the karaoke apparatus 1. Therefore, even when the user unintentionally touches the periphery of the touch switch 338, an operation panel that can prevent the karaoke apparatus 1 from executing an operation that is not intended by the user can be prevented. Can be provided to the karaoke apparatus 1.

Further, according to the karaoke apparatus 1 of the present embodiment, when it is detected that all the four electrodes 38 arranged behind the touch switch 338 are on, it is determined that the touch operation to the touch switch 338 has been performed. Or by adjusting the sensitivity by changing a predetermined threshold for determining the capacitance of the electrode 38 or the period during which the electrode 38 is on, various malfunction prevention levels can be set according to the type of the touch switch 338. Can change. Therefore, even if the parent / child visits the karaoke box, for example, and the parent operates the karaoke apparatus 1 and the touch switch 338 is touched such as the child momentarily pushes the finger, the concave portion 33b of the touch switch 338 is provided. It is possible to provide the karaoke apparatus 1 with an operation panel 10 that is less likely to malfunction, such as being inoperative without malfunctioning, such as not operating unless the center portion (bottom 33e) is pressed for a certain period of time.
[5. Other Embodiments]
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, It is possible to implement in the following various aspects.

(1) The present invention is applicable not only to a karaoke apparatus but also to other electronic devices.
(2) The present invention is applicable not only to a performance stop switch but also to a switch for stopping other functions. The present invention is also applicable to a power switch. The present invention is also applicable to a switch that executes a specific function such as a pause function again.

  (3) In the above embodiment, the front surface 34a of the touch panel 34 is attached to the back surface 33c of the decorative panel 33 via the double-sided tape 39. However, the present invention is not limited to this. It may be attached to the back surface 33c of the decorative panel 33.

  (4) Further, as illustrated in FIG. 4C, the front surface 34 a of the touch panel 34 is placed on the top of the screw 40 inserted through the hole 34 e formed on the touch panel 34, and the convex portion 33 f of the back surface 33 c of the decorative panel 33. You may attach to the back surface 33c of the decorative panel 33 by attaching to the hole 33i formed in the outer part.

 Further, since the position of screwing with the screw 40 is configured to be outside the convex portion 33f of the back surface 33c of the decorative panel 33, the touch panel 34 itself is bent by the convex portion 33f and the slope (outer peripheral surface) of the convex portion 33f. 33g). As a result, the operator who performs the screwing operation with the screw 40 can easily attach the touch panel 34 accurately from the upper part of the back surface 33c of the decorative panel 33 to be the convex portion 33f of the decorative panel 33. The panel 10 can be provided to the karaoke apparatus 1.

DESCRIPTION OF SYMBOLS 1 ... Karaoke apparatus, 2 ... Case, 2a ... Opening part, 10 ... Operation panel, 11 ... Video processing part, 12 ... MPEG decoder, 13 ... HDD, 14 ... CPU, 15 ... Memory, 16 ... LAN interface, 17 ... RTC, 18 ... MIDI sound source unit, 19 ... sound processing unit, 20 ... amplifier, 22 ... speaker, 23 ... microphone, 24 ... monitor, 31 ... housing, 31a ... opening, 32 ... substrate, 32a ... mounting surface of substrate , 33 ... decorative panel, 33a ... surface of the decorative panel, 33b ... concave portion, 33c ... back surface of the decorative panel, 33d ... inner peripheral surface of the concave portion, 33e ... bottom portion of the concave portion, 33f ... convex portion, 33g ... outer peripheral surface of the convex portion , 33h ... top of convex part, 33i ... hole, 34 ... touch panel, 34a ... surface of touch panel, 34b ... insertion hole, 34c ... peripheral edge of insertion hole, 34d ... tongue piece, 34e ... hole, 35 ... panel Microcomputer, 36 ... LED, 37 ... IC chip, 38 ... electrode, 39 ... double-sided tape, 40 ... screw, 331 ... touch switch (power switch), 332,333 ... touch switch (music volume switch), 334,335 ... touch Switch (microphone volume switch), 336, 337 ... touch switch (microphone echo volume switch), 338 ... touch switch (performance stop switch)

Claims (4)

A housing that can be attached to an electronic device and has an opening;
A substrate on which the light emitting part that is disposed inside the housing and can radiate visible light from the opening is mounted on the mounting surface;
A touch switch that is formed in a plate shape with a material having transparency, covers at least a part of the opening of the housing and is positioned in front of the light emitting unit, and receives a touch operation by a user is provided on the surface of the touch switch. A decorative panel formed on the front part of the light emitting part,
A touch panel that is formed in a sheet shape by a material having transparency and elasticity, is disposed between the substrate and the decorative panel, and has a capacitance switch that is turned on and off by a touch operation on the touch switch by a user;
The touch switch is arranged on the basis of an output signal from the capacitance switch and is controlled to emit the visible light by controlling the light emitting unit based on an instruction from an electronic device on which the operation panel is mounted. A control unit capable of detecting the presence or absence of a touch operation and outputting a signal to that effect to the electronic device;
An operation panel of an electronic device comprising:
The decorative panel includes a concave portion having an inner peripheral surface capable of enclosing a user's fingertip and a bottom portion surrounded by the inner peripheral surface, and a surface opposite to the surface on which the concave portion of the decorative panel is formed. Protruding portions that protrude toward the light emitting portion and have an outer peripheral surface having a shape along the inner peripheral surface and a top portion having a shape along the bottom, are formed in pairs.
The touch panel is formed with an insertion hole into which the convex portion can be inserted, and a plurality of tongue pieces extending from the periphery of the insertion hole toward the inside of the insertion hole, and the capacitance switch includes the plurality of capacitance switches. There are the same number of tongue pieces, and the capacitance switches are attached to the plurality of tongue pieces,
further,
The touch panel is attached to the decorative panel in a state where the convex portion of the decorative panel is inserted into the insertion hole, so that the plurality of tongue pieces are in contact with the outer peripheral surface and the capacitance switch is Close to or in contact with the outer surface,
The control unit determines that a touch operation has been performed on the touch switch when two or more of the capacitance switches are simultaneously turned on, and outputs a signal indicating the touch to the electronic device An operation panel for an electronic device characterized by being output to the device.   The control unit outputs a signal indicating that a touch operation has been performed on the touch switch when it continuously detects that all of the capacitance switches are simultaneously turned on for a predetermined period of time. The operation panel of the electronic device according to claim 1.   The operation panel for an electronic device according to claim 1, wherein the touch panel is attached to the decorative panel by being brought into contact with a portion outside the convex portion on the back surface of the decorative panel.   2. The touch panel, wherein the plurality of tongue pieces are formed so as to extend toward the inside of the insertion hole from a position divided at an equal angle of a peripheral edge portion of the insertion hole. The operation panel of the electronic device in any one of -3.

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