JP2012243190A - Input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an input device for generating an area that gives a tactile different from other areas at an optional position on a detection plane.SOLUTION: The input device 1 includes a touch panel 10 for outputting a detection signal on the basis of contact with a detection plane 100, and an oscillation generating unit 20 for oscillating the touch panel 10 in a first direction 301 and a second direction 302 which is opposite to the first direction as if a rotation center 11 is present on the detection plane 100. Since the input device 1 forms the rotation center 11 at an optional position on the detection plane 100 by oscillating the touch panel 10, an area that gives a tactile different from other areas can be formed at an optional position.

Description

  The present invention relates to an input device.

  As a conventional technique, a touch pad unit that outputs a signal based on a touched point, and a signal that includes information on the calculated coordinate point by analyzing the signal based on the signal from the touch pad unit and calculating a coordinate point There is known a keyboard touchpad provided with a signal analysis unit that outputs (see, for example, Patent Document 1).

  Below the touch pad portion of the keyboard touch pad, a sheet for displaying the key position is provided, the key arrangement can be recognized via the touch pad portion, and the home position (touch pad portion) A small projection indicating the reference position). The operator can recognize the home position by touching the protrusion.

Japanese Patent Laid-Open No. 10-254624

  However, since the conventional keyboard touchpad is provided with a small protrusion on the touchpad portion that indicates the home position, the position cannot be changed.

  Therefore, an object of the present invention is to provide an input device that can form a region that gives a tactile sensation different from other regions at an arbitrary position on the detection surface.

  One embodiment of the present invention includes a detection unit that outputs a detection signal based on contact with the detection surface, and a second direction that is opposite to the first direction and the first direction so that the rotation center exists on the detection surface. An input device is provided that includes a vibration generation unit that vibrates the detection unit in a direction.

  According to the present invention, it is possible to form a region that gives a tactile sensation different from other regions at an arbitrary position on the detection surface.

FIG. 1A is a perspective view of an input device according to an embodiment, FIG. 1B is a top view of the input device, and FIG. 1C is a block diagram of the input device. FIG. 2A is a graph showing a time change of the drive signal supplied to the first vibrator according to the embodiment, and FIG. 2B is a time of the drive signal supplied to the second vibrator. (C) is a graph showing the time change of the amplitude of the first vibrator, (d) is a graph showing the time change of the amplitude of the second vibrator, e) is a graph showing the timing for acquiring the detection signal of the touch panel. FIGS. 3A to 3D are top views for explaining the rotation center formed on the detection surface of the input device according to the embodiment.

[Embodiment]
(Summary of embodiment)
The input device according to the embodiment includes a detection unit that outputs a detection signal based on contact with the detection surface, and a first direction that is opposite to the first direction so that the rotation center exists on the detection surface. A vibration generation unit that vibrates the detection unit in the direction of 2.

(Configuration of input device 1)
FIG. 1A is a perspective view of an input device according to an embodiment, FIG. 1B is a top view of the input device, and FIG. 1C is a block diagram of the input device. FIG. 2A is a graph showing a time change of the drive signal supplied to the first vibrator according to the embodiment, and FIG. 2B is a time of the drive signal supplied to the second vibrator. (C) is a graph showing the time change of the amplitude of the first vibrator, (d) is a graph showing the time change of the amplitude of the second vibrator, e) is a graph showing the timing for acquiring the detection signal of the touch panel. In FIG. 1A, a part of the sensor wire 12 is indicated by a dotted line. In FIG. 1B, the touch panel 10 rotated at the maximum amplitude is indicated by a dotted line. 2A and 2B, the vertical axis represents voltage V and the horizontal axis represents time t. In FIGS. 2C and 2D, the vertical axis represents the amplitude d and the horizontal axis represents the time t. In FIG. 2E, the horizontal axis is time t. In each drawing according to the embodiment, the ratio between parts may differ from the actual ratio.

  The XYZ coordinate system in FIG. 1A is an orthogonal coordinate system, the X axis is an axis parallel to the longitudinal direction of the touch panel 10, the Y axis is an axis parallel to the short direction of the touch panel 10, and the Z axis Is an axis parallel to the normal direction of the detection surface 100 of the touch panel 10. The origin of the XYZ coordinate system is, for example, the upper left of the touch panel 10 (upper left of the paper surface of FIG. 1B). The detection surface 100 is assumed to be flat.

  The input device 1 according to the embodiment mainly includes a touch panel 10 as a detection unit that outputs a detection signal based on contact with the detection surface 100, and a first direction such that the rotation center 11 exists on the detection surface 100. 301 and a vibration generating unit 20 that vibrates the touch panel 10 in a second direction 302 that is opposite to the first direction 301.

  The input device 1 has a tactile sensation with other regions by rotating the touch panel 10 clockwise and counterclockwise on the paper surface of FIG. 1B by the first vibrator 21 and the second vibrator 22. Different rotation centers 11 are formed. By touching the detection surface 100, the operator can recognize the rotation center 11 having a tactile sensation different from other areas.

  In addition, the input device 1 is capable of operating a connected electronic device, for example. For example, the input device 1 touches the detection surface 100 with a part of the operator's body (for example, a finger) or a dedicated pen, thereby moving the cursor displayed on the electronic device or selecting and displaying the displayed icon. It is configured so that instructions such as dragging and dropping can be performed. In this embodiment, an operation with a finger will be described.

  Here, for example, the operator can perform a touch operation, a tap operation, a slide (tracing) operation, a gesture operation, and the like on the input device 1. Here, the touch operation indicates an operation of touching the detection surface 100 with a finger, for example. The tap operation is an operation of touching the input device 1 in a shorter time than the touch operation, and indicates an operation of executing different functions according to the number of times by repeating a plurality of times within a predetermined time. The slide operation refers to an operation of moving a finger while keeping the finger in contact with the detection surface 100, for example. The gesture operation indicates, for example, an operation for executing a function assigned to a shape when the trajectory of the operation finger is similar to a predetermined shape. For the determination of the gesture operation, for example, a known method such as a method using pattern matching is used.

-Configuration of the touch panel 10 The touch panel 10 is, for example, a known resistive film type, electrostatic capacity type touch panel, or the like.

  The touch panel 10 according to the present embodiment is, for example, a capacitive touch panel that detects a change in current inversely proportional to the distance between the sensor wire 12 and the finger due to the finger approaching the detection surface 100. The touch panel 10 includes, for example, a glass flat plate at the top, and a plurality of sensor wires 12 are provided below the glass flat plate. The detection surface 100 is the surface of this glass flat plate, for example.

  In the X-axis direction shown in FIG. 1A, for example, m sensor wires 12 are arranged at equal intervals. This m is, for example, a positive integer. Further, for example, n sensor wires 12 are arranged at equal intervals in the Y-axis direction shown in FIG. This n is, for example, a positive integer.

  The sensor wires 12 arranged along the X axis are formed in a layer closer to the detection surface 100 than the sensor wires 12 arranged along the Y axis, for example. The sensor wires 12 arranged along the X axis are electrically insulated from the sensor wires 12 arranged along the Y axis, for example.

  For example, as shown in FIG. 1C, the touch panel 10 is connected to a control unit 13 to be described later, and is configured to output a detection signal indicating the position of the detection surface 100 where contact is detected to the control unit 13. Has been.

  Moreover, the touch panel 10 shall be supported by the housing | casing (not shown) of the input device 1 so that a vibration is possible, for example. Specifically, for example, the first vibrator 21, the second vibrator 22, the first elastic member 31, and the second elastic member 32 are supported by the casing. As another support, for example, a configuration in which an elastic member such as rubber is interposed between the touch panel 10 and the housing and supported may be used. Hereinafter, the position of the touch panel 10 when the vibrations by the first vibrator 21 and the second vibrator 22 are stopped is referred to as an initial position. It is assumed that the touch panel 10 is supported so as to return to the initial position after the vibration is stopped.

  Here, in the following, on the paper surface of FIG. 1B, the upper side surface in the longitudinal direction of the touch panel 10 is the first side surface 101, the lower side surface in the longitudinal direction is the second side surface 102, and the right side surface in the short direction is the third side surface. The side surface 103 and the left side surface in the short direction are referred to as a fourth side surface 104.

-Configuration of Vibration Generation Unit 20 The vibration generation unit 20 is disposed on one side surface of the touch panel 10, for example, and a first vibrator 21 that vibrates the touch panel 10 and the other side surface opposite to the one side surface. And a second vibrator 22 that is arranged and applies vibration to the touch panel 10. The vibration generating unit 20 further includes a drive unit 23, for example. The first vibrator 21 and the second vibrator 22 are vibrators that vibrate by, for example, a piezo effect or a magnetostriction effect. As an example, the first vibrator 21 and the second vibrator 22 according to the present embodiment are vibrators using a piezo effect.

  The first vibrator 21 and the second vibrator 22 are roughly configured to include a piezo element (piezoelectric element) that expands and contracts when a voltage is applied, and the object is expanded and contracted by applying a voltage to the piezo element. It is a vibrator that gives vibration to objects. The frequency of this vibration is about several hundred Hz (as an example, 250 Hz to 500 Hz).

Moreover, the amplitude of this vibrator is about several μmpp as an example. Therefore, since it is difficult to illustrate how the touch panel 10 vibrates, the amplitude is set to a large amplitude that is easy to illustrate as illustrated in FIG. The first vibrator 21 has a maximum amplitude of + d ₁ in the first direction 301, that is, the extending direction, and a maximum amplitude of −d ₁ in the second direction 302, that is, the contracting direction. The second vibrator 22 has a maximum amplitude of + d ₂ in the second direction 302, that is, an extending direction, and a maximum amplitude of −d ₂ in the first direction 301, that is, a contracting direction.

  For example, as shown in FIGS. 1A and 1B, the vibration generator 20 includes a pair of vibrators (a first vibrator 21 and a second vibrator 22) that are symmetrical about the center of the detection surface 100. Are arranged so as to be point-symmetric. The arrangement of the pair of vibrators is not limited to point symmetry. That is, at least one of the pair of vibrators may be arranged so as to be shifted from a point-symmetric position.

  The first vibrator 21 and the second vibrator 22 are disposed so as to be in contact with the side surface in the longitudinal direction of the touch panel 10, for example.

  For example, as illustrated in FIG. 1A, the first vibrator 21 is disposed so as to contact the left end portion of the first side surface 101, and the positive and negative directions of the Y axis, that is, the first direction. It vibrates in 301 and the second direction 302.

  For example, as shown in FIG. 1A, the second vibrator 22 is disposed so as to be in contact with the right end portion of the second side surface 102 that is the side surface opposite to the first side surface 101, and It vibrates in the positive and negative directions, that is, in the first direction 301 and the second direction 302.

  Note that the first vibrator 21 and the second vibrator 22 are kept in contact with the touch panel 10 while vibrating.

  For example, the first vibrator 21 and the second vibrator 22 do not form the rotation center 11, that is, are not arranged at positions where the touch panel 10 is displaced parallel to the X axis or the Y axis. Accordingly, the first vibrator 21 and the second vibrator 22 are respectively applied to the first side face 101 and the second side face 102 in the longitudinal direction, or the third side face 103 and the fourth side face 104 in the short side direction. It is preferable that the vibrators are arranged and the vibrators do not face each other via the touch panel 10.

  Here, in the present embodiment, the first direction 301 is a direction parallel to the positive direction of the Y axis, and the second direction 302 is a direction parallel to the negative direction of the Y axis. However, the present invention is not limited to this, and when the first vibrator 21 is disposed on the fourth side surface 104 in the short direction and the second vibrator 22 is disposed on the third side surface 103, for example, The first direction 301 is a direction parallel to the positive direction of the X axis, and the second direction 302 is a direction parallel to the negative direction of the X axis.

The first vibrator 21 and the second vibrator 22 are connected to a drive unit 23, for example. The drive unit 23 is configured to output drive signals to the first vibrator 21 and the second vibrator 22 based on a control signal acquired from the control unit 13. The drive signal supplied to the first vibrator 21 is, for example, a rectangular wave whose voltage periodically repeats + V ₁ and −V ₁ as shown in FIG. The drive signal supplied to the second vibrator 22 is, for example, a rectangular wave that periodically repeats + V ₂ and −V ₂ as shown in FIG.

Configuration of first elastic member 31 and second elastic member 32 The input device 1 further includes a first elastic member 31 and a second elastic member 32. For example, the first elastic member 31 and the second elastic member 32 are assumed to be in a state of accumulating elastic force when the touch panel 10 is in the initial position. That is, the first elastic member 31 applies an elastic force in the first direction 301 to the touch panel 10 when the touch panel 10 is in the initial position. Further, the second elastic member 32 applies an elastic force in the second direction 302 to the touch panel 10 when the touch panel 10 is in the initial position. Due to this elastic force, the first elastic member 31 and the second elastic member 32 maintain contact with the touch panel 10 even in a state where vibration is generated. In addition, the contact between the first vibrator 21 and the second vibrator 22 and the touch panel 10 is maintained by this elastic force.

  The first elastic member 31 and the second elastic member 32 are elastic members, for example, and are formed using a synthetic resin such as polyurethane, a synthetic rubber such as silicone rubber, or the like.

  For example, as shown in FIG. 1A, the first elastic member 31 is disposed so as to contact the right end portion of the first side surface 101. For example, as illustrated in FIG. 1A, the second elastic member 32 is disposed so as to be in contact with the left end portion of the second side surface 102. The first elastic member 31 and the second elastic member 32 may be disposed at a position where an elastic force for returning the touch panel 10 to the initial position can be applied when vibration is stopped, for example. good.

-Configuration of Control Unit 13 The input device 1 further includes a control unit 13 that acquires a detection signal from the touch panel 10 when the touch panel 10 is in the initial position.

  The control unit 13 is, for example, a CPU (Central Processing Unit) that performs calculation, processing, and the like on acquired information according to a program, a RAM (Random Access Memory) that is a semiconductor memory, a ROM (Read Only Memory), and the like. It is a computer.

  For example, the control unit 13 calculates the coordinates at which the finger touches or approaches from the coordinate values based on the acquired detection signal. As the calculation method of the coordinates, for example, a known method such as a method using a weighted average is used. For example, the control unit 13 is configured to generate and output an operation signal including information on the calculated coordinates.

For example, when the touch panel 10 is vibrating, the control unit 13 may acquire an error when the touch panel 10 is in the initial position because an error may occur in finger detection as it moves away from the rotation center 11. Is configured to do. Acquisition of the detection signal, for example, as shown in FIG. 2 (a) ~ (e) , the vibrator in consideration of the time lag or the like until the stretch from the supply voltage, the voltage + V ₁ and the voltage + V ₂ time and the supply is started, the time and the supply of the voltage -V ₁ and the voltage -V ₂ is started, is performed on the time obtained by adding the correction value in the middle of the time. That is, the trigger signal for obtaining the detection signal shown in FIG. 2 (e) is generated by delaying the drive signal shown in FIG. 2 (a) for a predetermined time in consideration of the phase delay shown above. The For example, a sensor for detecting the initial position of the touch panel 10 may be provided and the signal of this sensor may be used as a trigger.

(Operation)
Hereinafter, the operation of the input apparatus 1 according to the present embodiment will be described in detail with reference to the drawings. First, an operation when the rotation center 11 is formed at the center of the touch panel 10 will be described.

When the center of rotation 11 is formed at the center When the center of rotation 11 is formed at the center of the touch panel 10, the phase and amplitude of the first vibrator 21 and the second vibrator 22 need to be the same phase and amplitude. is there.

  Therefore, the control unit 13 generates a control signal for setting the phase and amplitude of the first vibrator 21 and the second vibrator 22 to the same phase and the same amplitude, and outputs them to the drive unit 23.

When the drive unit 23 acquires the control signal, the drive unit 23 generates the drive signal shown in FIGS. 2A and 2B, and sends the drive signal to the first vibrator 21 and the second vibrator 22 at time t ₀ . Output. In this drive signal, the voltage supplied to the first vibrator 21 and the voltage supplied to the second vibrator 22 are the same voltage. By the same voltage, the amplitude d ₁ of the first oscillator 21 and the amplitude d ₂ of the second vibrator 22 are equal.

For example, as shown in FIGS. 2A and 2C, the first vibrator 21 starts to be displaced in the first direction 301 when the voltage + V ₁ is supplied at time t ₀ . Further, for example, as illustrated in FIGS. 2B and 2D, the second vibrator 22 starts to be displaced in the second direction 302 when the voltage + V ₂ is supplied at time t ₀ .

From time t ₀ to time t _{1 at} which the voltage + V ₁ and the voltage + V ₂ are supplied, the first vibrator 21 is displaced in the first direction 301 and the amplitude is changed from zero (initial position) to + d ₁ , and the second The vibrator 22 is displaced in the second direction 302 and the amplitude is changed from zero (initial position) to + d ₂ . Based on this displacement, the touch panel 10 rotates from the initial position counterclockwise on the paper surface of FIG. With this rotation, the first elastic member 31 is elastically deformed in the second direction 302, and the second elastic member 32 is elastically deformed in the first direction 301. At time t _1, counterclockwise rotation angle of the touch panel 10 is maximized.

Then, at time _{t 1,} the voltage supplied to the first oscillator 21 is switched from + _{V 1} to -V _1, switched voltage supplied to the second transducer 22 from + _{V 2} to -V _2. Switched voltage is supplied from the time t ₁ over the time t _2.

As the voltage is switched, the first vibrator 21 is displaced in the second direction 302 and the amplitude is changed from + d ₁ to −d ₁ , and the second vibrator 22 is displaced in the first direction 301. The amplitude is from + d ₂ to -d ₂ . Based on this displacement, the touch panel 10 rotates clockwise on the paper surface of FIG. Along with this rotation, from time t ₁ to time t ₂ , the first elastic member 31 releases the accumulated elastic force to drive the touch panel 10 in the first direction 301, and the second elastic member 32. Releases the accumulated elastic force and drives the touch panel 10 in the second direction 302. Due to the displacement of the first vibrator 21 and the second vibrator 22 from the time t ₁ to the time t ₂ and the driving of the first elastic member 31 and the second elastic member 32, the touch panel 10 rotates clockwise. The rotation angle is maximum.

Then, at time _{t 2,} the voltage supplied to the first oscillator 21 is switched from -V ₁ to + _{V 1,} the voltage supplied to the second vibrator 22 is switched from -V ₂ to + _{V 2.} Switched voltage is supplied from the time t ₂ over the time t _4. For example, as illustrated in FIG. 2E, the control unit 13 acquires a detection signal from the touch panel 10 at a time t ₃ when the touch panel 10 returns to the initial position.

As the voltage is switched, the first vibrator 21 is displaced in the first direction 301 and the amplitude is changed from −d ₁ to + d ₁ , and the second vibrator 22 is displaced in the second direction 302. The amplitude is changed from −d ₂ to + d ₂ . Based on this displacement, the touch panel 10 rotates counterclockwise on the paper surface of FIG. Along with this rotation, from time t ₂ to time t ₄ , the first elastic member 31 is elastically deformed in the first direction 301 to accumulate elastic force, and the second elastic member 32 is Elastically deforms in the direction 302 to accumulate elastic force.

  The first vibrator 21 and the second vibrator 22 vibrate based on the supplied drive signal until the drive signal is stopped. Due to this vibration, the rotation center 11 is present on the detection surface 100. Unlike the other areas of the detection surface 100, the rotation center 11 has an extremely small amount of movement of the touch panel 10, so that the tactile sensation is greatly different from other areas. Therefore, the operator can recognize the rotation center 11, that is, the home position of the input device 1 without moving the line of sight.

When Forming the Rotation Center 11 at an Arbitrary Position FIGS. 3A to 3D are top views for explaining the rotation center formed on the detection surface of the input device according to the embodiment. 3A, the rotation center 11 is formed on the upper left side of the paper surface, FIG. 3B is the rotation center 11 formed on the lower left side of the paper surface, and FIG. 3C is the rotation center 11 on the upper right side of the paper surface. In (d), the rotation center 11 is formed on the lower right side of the drawing. 3A to 3D all illustrate the touch panel 10 with a rotation angle of 2 degrees.

  The control unit 13 generates a control signal based on information regarding the position where the rotation center 11 is formed, and outputs the control signal to the drive unit 23. This information may be acquired from the outside or stored in the control unit 13 in advance.

Figure 3 (a) ~ (d) is a combination of an amplitude _{d 2} of the amplitude _{d 1} and the second vibrator 22 of the first vibrator 21, to the rotation center 11 an arbitrary position of the detection surface 100 It shows that you can. The amplitude d ₁ and the amplitude d ₂ are determined according to the distance from the rotation center 11 to each transducer. That is, the amplitude increases as the distance from the rotation center 11 increases when the rotation angle of the touch panel 10 is the same. Therefore, a combination of amplitudes is determined in consideration of the rotation angle of the touch panel 10 so that any one of the amplitudes does not become larger than the maximum amplitude. Note that the phases of the first vibrator 21 and the second vibrator 22 are the same.

(Effect of embodiment)
Since the input device 1 according to the present embodiment can form the rotation center 11 at an arbitrary position on the detection surface 100 by vibrating the touch panel 10, an area that gives a tactile sensation different from other areas can be arbitrarily set. Can be formed in position. That is, the input device 1 can suppress the movement of the line of sight of the operator with respect to the input device 1 by forming the rotation center 11 at the center of the detection surface 100, that is, the home position.

  Since the input device 1 according to the present embodiment has a configuration in which vibration is generated by the first vibrator 21 and the second vibrator 22 using piezoelectric elements, compared to a case in which vibration is generated by a motor or the like. Thus, the number of components can be reduced, and the manufacturing cost can be suppressed. Moreover, the input device 1 can suppress the sound generated with the vibration.

  The input device 1 according to the present embodiment can maintain the contact between the first vibrator 21 and the second vibrator 22 and the touch panel 10 by the first elastic member 31 and the second elastic member 32. In addition, when the vibration stops, the touch panel 10 can be returned to the initial position. Since the input device 1 has a simple configuration as compared with the case where contact is maintained and the initial position is returned using other mechanical elements, the number of components is reduced, and the manufacturing cost can be suppressed.

  Since the input device 1 according to the present embodiment acquires a detection signal using the time when the touch panel 10 is located at the initial position as a trigger, the operation performed can be detected as compared with the case where the time when the touch position is located at the initial position is not considered. High accuracy.

  As a modification of the present embodiment, the input device 1 can form the rotation center 11 at a position where it is desired to stop the operator's finger. That is, for example, when the user wants to select an icon displayed on the display unit of the electronic device, the input device 1 forms a rotation center 11 at the position of the touch panel 10 corresponding to the icon, thereby providing a tactile sensation. The position to stop can be recognized.

  Further, in the input device 1 according to the present embodiment, the vibrator is arranged on the first side surface 101 and the second side surface 102 in the longitudinal direction of the touch panel 10, but the present invention is not limited to this, and the short direction of the touch panel 10. Vibrators may be arranged on the third side surface 103 and the fourth side surface 104.

  Moreover, although the 1st elastic member 31 and the 2nd elastic member 32 which concern on this Embodiment were arrange | positioned on the same side as the 1st vibrator | oscillator 21 and the 2nd vibrator | oscillator 22, it is not limited to this. , May be arranged on different sides.

  Further, the number of vibrators according to the present embodiment is not limited to the above, and can be freely changed according to the application. Further, for example, the arrangement and the number of vibrators can be changed in accordance with the shape of the touch panel 10.

Further, in the control unit 13 according to the present embodiment, the timing for acquiring the detection signal is a time between the time when the voltage + V ₁ is supplied and the time when the voltage is switched to −V _1. However, the detection signal may be acquired every time the initial position is restored.

  As mentioned above, although some embodiment and modification of this invention were demonstrated, these embodiment and modification are only examples, and do not limit the invention based on a claim. These novel embodiments and modifications can be implemented in various other forms, and various omissions, replacements, changes, and the like can be made without departing from the scope of the present invention. In addition, not all combinations of features described in these embodiments and modifications are necessarily essential to the means for solving the problems of the invention. Furthermore, these embodiments and modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Input device, 10 ... Touch panel, 11 ... Center of rotation, 12 ... Sensor wire, 13 ... Control part, 20 ... Vibration generating part, 21 ... 1st vibrator | oscillator, 22 ... 2nd vibrator | oscillator, 23 ... Drive part , 31 ... 1st elastic member, 32 ... 2nd elastic member, 100 ... detection surface, 101 ... 1st side surface, 102 ... 2nd side surface, 103 ... 3rd side surface, 104 ... 4th side surface, 301: first direction 302: second direction

Claims (4)

A detection unit that outputs a detection signal based on contact with the detection surface;
A vibration generating unit that vibrates the detection unit in a second direction that is a reverse direction of the first direction and the first direction so that a rotation center exists on the detection surface;
An input device comprising:   The vibration generating unit is disposed on one side surface of the detection unit, and is disposed on a first vibrator that imparts vibration to the detection unit, and on the other side surface opposite to the one side surface. The input device according to claim 1, further comprising: a second vibrator that applies vibration.   The input device according to claim 2, further comprising a control unit that acquires the detection signal from the detection unit when the detection unit is in an initial position.   A first elastic member that applies an elastic force in the first direction to the detection unit; and a second elastic member that applies an elastic force in the second direction to the detection unit. The input device according to claim 3.

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