Patent Description:
Conventionally, haptically-enabled display devices including a display screen that has a viewing region and a non-viewing region and includes a plurality of display components configured to provide a visual display to the viewing region, a plurality of haptic actuators fixed to the display screen in the non-viewing region, and at least one processor are known. The at least one processor selects at least one haptic actuator from among the plurality of haptic actuators, activates the at least one haptic actuator, thus determines a haptic control signal configured to provide a localized haptic effect at a target location in the viewing region of the display device, and transmits the haptic control signal to the at least one haptic actuator to provide the localized haptic effect at the target location (see, for example, <CIT>).

The patent application <CIT> describes a tactile feedback device with a case body, a touch input unit which is pressed toward the inner side of the case body by a touch operation, a vibration actuator which is fixed to the touch input unit and which vibrates according to the touch operation, and an elastic support member which supports the touch input unit on the case body, where the elastic support member is extended along a direction which intersects with a pressing direction P in which the touch operation is performed, with one part of the elastic support member in said extension direction being fixed to the touch input unit and another part thereof in said extension direction being fixed to the case body.

The patent application <CIT> describes a vehicular control unit with a touch sensor on which a predetermined area is set, a tactile sensation presentation unit, a pressing detector and a controller that enables operation of a vehicle mounted apparatus in response to an input to the touch sensor when pressing is equal to or higher than a first pressure.

The patent application <CIT> discloses a device comprising a vibration panel, a voice coil motor as the vibration generating component, a housing, a support section positioned between the vibration panel and the housing, which is compressed with a predetermined force, a damper interposed in parallel with the support section and a spring serving as a pressurizing component that applies a compressive force to the support section and the damper positioned between the vibration panel and the housing.

Although conventional haptically-enabled display devices provide a localized haptic effect by using a combination of a plurality of actuators, details of arrangement, structures, and the like of the actuators and the display are not described. Furthermore, the conventional haptically-enabled display devices are not ones that provide a localized haptic effect based on a positional relationship between a fixing part that fixes the actuators and the display screen and the actuators.

In view of this, an object is to provide an electronic device having a positional relationship between a plurality of attaching parts and a plurality of actuators of an operation panel that generates local vibration in the operation panel.

The invention is described in the enclosed claims.

An electronic device according to an embodiment of the present invention includes a holding member; an operation panel on which a user performs an operation input; a plurality of attaching parts that attach the operation panel to the holding member; a plurality of actuators each of which is provided between adjacent attaching parts among the plurality of attaching parts in plan view and generates vibration in the operation panel; a position detection part that detects a position where the operation input is performed; and a control part that drives at least one of the plurality of actuators in accordance with a position detected by the position detection part.

It is possible to provide an electronic device that has a positional relationship between a plurality of attaching parts and a plurality of actuators of an operation panel that generates local vibration in the operation panel.

Embodiments to which an electronic device of the present invention is applied are described.

<FIG> is a perspective view illustrating an electronic device <NUM> according to the first embodiment. <FIG> illustrates a lower surface side of the electronic device <NUM> according to the first embodiment. <FIG> illustrates a state where a cover on the lower surface side has been detached. In the following description, an XYZ coordinate system is defined. In the following description, plan view is a XY plane view. Although a -Z direction side is referred to as a lower side or down and a +Z direction side is referred to as an upper side or up for convenience of description, this does not indicate a universal up-down relationship. Furthermore, a thickness is a dimension in a Z direction unless otherwise specified.

The electronic device <NUM> includes a frame <NUM>, an operation panel <NUM>, a sensor sheet 130A, a liquid crystal display (LCD) 130B, a suspension device <NUM>, an actuator <NUM>, and an acceleration sensor <NUM>. Tne electronic device <NUM> is a device having a thin plate shape extending in an XY plane. A longitudinal direction of the electronic device <NUM> is an X direction, and a short-side direction of the electronic device <NUM> is a Y direction. As for the longitudinal direction (the X direction) and the short-side direction (the Y direction), the same applies to the frame <NUM>, the operation panel <NUM>, the sensor sheet 130A, and the LCD 130B.

The following description is given with reference to <FIG> in addition to <FIG> and <FIG>. <FIG> illustrates the lower surface side in a state where the sensor sheet 130A and the LCD 130B have been detached from the electronic device <NUM> according to the first embodiment. <FIG> illustrates a cross section taken along line A-A in <FIG> and <FIG>. <FIG> is an enlarged view of a part surrounded by the rectangular broken line illustrated in <FIG> viewed obliquely from a lower side. <FIG> is an enlarged view of the suspension device <NUM>. The electronic device <NUM> further includes a pressure sensor <NUM> illustrated in <FIG>.

The frame <NUM> is an example of a holding member and is a rectangular annular frame shaped member. Although the frame <NUM> may be constituted by separate members, the frame <NUM> is an integrally formed frame-shaped member in this example. In this example, it is assumed that the frame <NUM> has frame parts <NUM>, <NUM>, <NUM>, and <NUM>. The frame part <NUM> is a part that extends in the X direction on a -Y direction side. The frame part <NUM> is a part that extends in the X direction on a +Y direction side. The frame part <NUM> is a part that extends in the Y direction on a -X direction. The frame part <NUM> is a part that extends in the Y direction on a +X direction side. An inner side of the frame <NUM> is an opening, and this opening is provided to hold the operation panel <NUM>. The frame <NUM> may be a part of a housing of the electronic device <NUM>.

The operation panel <NUM> is a transparent thin plate member and is, for example, a thin plate made of glass or a thin plate made of a hard resin. The operation panel <NUM> is attached to the opening <NUM> at a center of the rectangular annual frame <NUM> with the use of ten suspension devices <NUM>. A size of the operation panel <NUM> in plan view is set to match an opening size of the frame <NUM> so that almost no gap is formed when the operation panel <NUM> is attached to the frame <NUM>. The operation panel <NUM> has an operation surface <NUM> that is located on an outer surface of the electronic device <NUM> and is operated by a user of the electronic device <NUM> by using a hand or the like. The operation surface <NUM> is an upper surface of the operation panel <NUM> and is substantially flush with an upper surface of the frame <NUM>.

The operation panel <NUM> has four recessed parts <NUM> on a lower surface thereof. The lower surface is a surface opposite to the operation surface <NUM>. The recessed parts <NUM> are groove-shaped parts recessed on the lower surface of the operation panel <NUM> along the Y direction, as illustrated in <FIG> and <FIG>. A cross section of the recessed parts <NUM> parallel with an XZ plane has a substantially arc shape. In <FIG>, the recessed parts <NUM> are indicated by lines with alternate long and short dashes. The four recessed parts <NUM> extend from an end portion of the operation panel <NUM> on the -Y direction side to an end portion of the operation panel <NUM> on the +Y direction side. However, the recessed parts <NUM> are not limited to the substantially arc shape, as long as the recessed parts <NUM> have a round shape so that stress is not concentrated at one point. For example, in a case where the recessed parts <NUM> have a triangular shape, corner portions of the triangular shape may have a round shape.

The four recessed parts <NUM> are provided so as to divide the operation panel <NUM> into five equal parts in the X direction, and the four recessed parts <NUM> are disposed at equal intervals in the X direction. The four recessed parts <NUM> are provided to divide the operation panel <NUM> into five regions 120A1 to 120A5 in the X direction. More specifically, portions of the operation panel <NUM> where the recessed parts <NUM> are provided are thin and are lower in rigidity than portions other than the portions where the recessed parts <NUM> are provided. In a portion where rigidity is weak, only vibration of a low frequency region propagates, and as a result, less vibration is transmitted to an adjacent region. By providing such recessed parts <NUM>, a region where vibration is generated in the operation panel <NUM> is divided into five regions. Note that since the LCD 130B is disposed below the operation panel <NUM>, the recessed parts <NUM> are filled with a transparent resin <NUM> (see <FIG>) represented by a transparent rubber material that has sufficiently low rigidity relative to the operation panel <NUM> and has a refractive index close to that of a material of the operation panel <NUM>. In this way, the recessed parts <NUM> are made invisible from the operation surface <NUM> side of the operation panel <NUM>.

Furthermore, the operation panel <NUM> has a viewing region 123A and a non-viewing region 123B, as illustrated in <FIG>. The non-viewing region 123B is a rectangular annular region provided along four sides of the operation panel <NUM> in plan view, and the non-viewing region 123B is a region that does not overlap the LCD 130B and/or a region that cannot be viewed from an outside even in a case where the non-viewing region 123B overlaps the LCD 130B. The viewing region 123A is a region that is located inside the non-viewing region 123B in plan view and overlaps the LCD 130B, and thereby makes a display region constituted by the LCD 130B viewable. Since a part of the suspension device <NUM>, the pressure sensor <NUM>, the actuator <NUM>, and the acceleration sensor <NUM> are disposed below the non-viewing region 123B, a decorating member may be provided on a part of the operation surface <NUM> so that these parts are not visible from the operation surface <NUM> side of the operation panel <NUM>. The decorating member can be realized by a non-transparent film, a coating layer coated with non-transparent paint, or the like. Note that the decorating member may be provided on the lower surface of the operation panel <NUM> within the non-viewing region 123B.

The sensor sheet 130A is an example of a position detection part and is disposed on the lower surface side of the operation panel <NUM> so as to be superimposed on an upper surface side of the LCD 130B. The sensor sheet 130A may be, for example, a capacitance type. The sensor sheet 130A detects a position (coordinates) of an operation input performed on the operation surface <NUM>. The sensor sheet 130A is transparent.

The LCD 130B is an example of a display part, and displays, for example, a graphic user interface (GUI) image. Since the sensor sheet 130A is transparent, an image displayed on the LCD 130B is viewed by a user through the sensor sheet 130A and the operation panel <NUM>. Although an aspect in which the LCD 130B is used as a display part is described here, the display part is not limited to the LCD 130B and may be any image display element such as an organic electroluminescence (EL). Although an aspect in which the electronic device <NUM> includes a display part is described here, the electronic device <NUM> may be configured not to include a display part. In this case, members such as the sensor sheet 130A and the operation panel <NUM> need not be transparent.

The suspension device <NUM> is an example of an attaching part that attaches the operation panel <NUM> to the frame <NUM> and also has a function of a suspension that lessens vibration between the operation panel <NUM> and the frame <NUM>. The suspension device <NUM> elastically holds the operation panel <NUM> relative to the frame <NUM>. For example, twenty suspension devices <NUM> are provided. Specifically, ten suspension devices <NUM> are provided for each of the frame parts <NUM> and <NUM> of the frame <NUM>. Each of the suspension devices <NUM> has a holder <NUM>, a rubber member <NUM>, and a shaft part <NUM>.

When the ten suspension devices <NUM> attached to the frame part <NUM> are referred to as first to tenth suspension devices <NUM> from the -X direction side to the +X direction side and the four recessed parts <NUM> are referred to as first to fourth recessed parts <NUM> from the -X direction side to the +X direction side, the ten suspension devices <NUM> are disposed as follows, as illustrated in <FIG>. The first suspension device <NUM> is provided at an end portion of the frame part <NUM> on the -X direction side, and the second and third suspension devices <NUM> are provided adjacent to each other with the first recessed part <NUM> interposed therebetween. The fourth and fifth suspension devices <NUM> are provided adjacent to each other with the second recessed part <NUM> interposed therebetween. The sixth and seventh suspension devices <NUM> are provided adjacent to each other with the third recessed part <NUM> interposed therebetween. The eighth and ninth suspension devices <NUM> are provided adjacent to each other with the fourtin recessed part <NUM> interposed therebetween. The tenth suspension device <NUM> is provided at an end portion of the frame part <NUM> on the +X direction side. An interval between the first and second suspension devices <NUM>, an interval between the third and fourth suspension devices <NUM>, an interval between the fifth and sixth suspension devices <NUM>, an interval between the seventh and eighth suspension devices <NUM>, and an interval between the ninth and tenth suspension devices <NUM> are equal. The same applies to the ten suspension devices <NUM> attached to the frame part <NUM>. That is, the suspension devices <NUM> are provided corresponding to the positions of the recessed parts <NUM> forming boundaries between the regions 120A1 to 120A5. By thus disposing the suspension devices <NUM> at positions close to the recessed parts <NUM>, the suspension devices <NUM> disposed with the recessed part <NUM> interposed therebetween act as virtual support points, and the recessed parts <NUM> act as springs, and therefore a posture of the operation panel <NUM> is easily held.

The holder <NUM> is an example of an extending part, and one end thereof is fixed to a lower surface of the frame part <NUM> or <NUM>, and the other end thereof is fixed to the lower surface of the operation panel <NUM>. The holder <NUM> is made of a material having high rigidity. As illustrates in <FIG>, the holder <NUM> is positioned with the use of a pin 145A and is fixed with the use of three screws 145B on the lower surface of the frame part <NUM> or <NUM>. The holder <NUM> is a plate-shaped member that extends in the Y direction from the lower surface of the frame part <NUM> or <NUM> toward the opening <NUM> of the rectangular annular frame <NUM> in plan view. About a half of the holder <NUM> in the Y direction extends in the opening of the frame <NUM> in plan view, and has, at an end portion on the opening <NUM> side, a cutout part 141A (see <FIG>) through which the rubber member <NUM> is inserted.

The rubber member <NUM> is an example of an elastic member, is provided between the holder <NUM> and the operation panel <NUM>, and lessens vibration propagating to the holder <NUM> and the frame <NUM> by absorbing vibration of the operation panel <NUM>. The rubber member <NUM> serves as a spring, and in a case where a spring constant thereof is small, a high frequency component of vibration is hard to transmit, and therefore an amount of transmitted vibration decreases as a whole.

The rubber member <NUM> is a substantially cylindrical member made of rubber and has, at a center thereof, a through hole 142A passing therethrough in an axial direction extending along the Z direction, as illustrated in <FIG>. The shaft part <NUM> is inserted through the through hole 142A. In <FIG>, for easier understanding of the configuration, the rubber member <NUM> of the suspension device <NUM> on the left side is omitted, and the shaft part <NUM> is illustrated. <FIG> illustrates a state obtained by reversing upper and lower sides of <FIG>, and a screw <NUM> and the acceleration sensor <NUM> of the suspension device <NUM> on the right side are omitted for easier understanding of the configuration.

The rubber member <NUM> is fixed to the lower surface of the operation panel <NUM> by the shaft part <NUM>, and an outer circumferential part thereof is engaged with the cutout part 141A of the holder <NUM>, as illustrated on the right side of <FIG>. Furthermore, the rubber member <NUM> has, on upper and lower surfaces thereof, a plurality of protrusions 142B arranged in an annular manner so as to surround the shaft part <NUM>, as illustrated in <FIG>. The rubber member <NUM> is in contact with the pressure sensor <NUM> with the plurality of protrusions 142B on the upper surface side interposed therebetween, and the rubber member <NUM> is in contact with a disc part 143A at a lower end of the shaft part <NUM> with the plurality of protrusions 142B on the lower surface side interposed therebetween. The disc part 143A is an annular part that protrudes outward in a radial direction along an outer circumference of the shaft part <NUM> at the lower end of the shaft part <NUM>.

The shaft part <NUM> is fixed to the operation panel <NUM> with the use of the screw <NUM> in a state where the acceleration sensor <NUM> and the pressure sensor <NUM> are sandwiched between an upper end of the shaft part <NUM> and the lower surface of the operation panel <NUM>. Accordingly, the rubber member <NUM> is sandwiched between a lower surface of the pressure sensor <NUM> and an upper surface of the disc part 143A of the shaft part <NUM> in a state where the protrusions 142B on the upper surface are in contact with the lower surface of the pressure sensor <NUM> and the protrusions 142B on the lower surface are in contact with the upper surface of the disc part 143A.

As described above, the suspension device <NUM> is attached to the frame <NUM> with the rubber member <NUM> interposed therebetween, and therefore has low rigidity and is fastened with weak fastening force. Accordingly, less vibration propagates to the frame <NUM>, and vibration is excited only in the operation panel <NUM>. Furthermore, since the rubber member <NUM> makes contact with the lower surface of the pressure sensor <NUM> and the upper surface of the disc part 143A with the protrusions 142B having a small contact area interposed therebetween, a configuration in which the operation panel <NUM> is easy to be deformed following deformation caused by vibration of the actuator 16C is realized.

The shaft part <NUM> is a cylindrical member that has the disc part 143A and a through hole 143B passing therethrough in the axial direction, and is fixed to the operation panel <NUM> with the use of the screw <NUM> inserted through the through hole 143B in a state where the shaft part <NUM> is inserted through the through hole 142A at the center of the rubber member <NUM>. More specifically, the shaft part <NUM> is fixed to the operation panel <NUM> with the use of the screw <NUM> in a state where the acceleration sensor <NUM> and the pressure sensor <NUM> are sandwiched between the upper end of the shaft part <NUM> and the lower surface of the operation panel <NUM>. The screw <NUM> is fastened to a screw hole of the operation panel <NUM> in a state where the screw <NUM> is inserted through a through hole provided through the acceleration sensor <NUM> and the pressure sensor <NUM>. An external shape of the shaft part <NUM> matches an inner diameter of the through hole of the rubber member <NUM>, so that a position of the rubber member <NUM> relative to the shaft part <NUM> is not shifted.

Note that the suspension device <NUM> may be corfigured such that the rubber member <NUM> is provided between the holder <NUM> and the operation panel <NUM> without including the shaft part <NUM>. For example, the rubber member <NUM> may be provided so as to be sandwiched between the holder <NUM> and the operation panel <NUM>. Furthermore, another elastic member may be used instead of the rubber member <NUM>. Furthermore, a configuration in which the operation panel <NUM> is directly attached to the frame <NUM> at twenty points instead of twenty suspension devices <NUM> may be employed instead of the configuration for lessening vibration such as the suspension devices <NUM>. However, in a case where such a configuration is employed, the effect of reducing an amount of transmitted vibration obtained by the rubber member <NUM> of the suspension device <NUM> is lost. Furthermore, since a vibration feedback amount around an attachment position cannot be increased, a central region in each region becomes a main region of vibration feedback. Furthermore, sound may be generated since vibration is not absorbed.

The pressure sensor <NUM> is a sensor that detects a pressure by which the operation panel <NUM> is pressed downward by an operation input. As the pressure sensor <NUM>, a sensor using a piezoelectric element can be used, for example. The pressure sensor <NUM> is provided on each shaft part <NUM>.

Two actuators <NUM> may be provided for each of the five regions 120A1 to 120A5 of the operation panel <NUM> divided by the four recessed parts <NUM>. Five actuators <NUM> are provided at equal intervals along each of two end sides along the frame parts <NUM> and <NUM> of the operation panel <NUM>. A position of each actuator <NUM> in the X direction is a center of each of the regions 120A1 to 120A5, and a position of each actuator <NUM> in the Y direction is an end portion of the operation panel <NUM> on any one of ±Y direction sides. When each region is regarded as a beam supported at the suspension devices <NUM>, a weight of each actuator <NUM> is disposed at a portion where warpage of the beam is large by thus disposing each actuator <NUM> at a center of each region in the X direction. This can lower a resonance frequency of the beam and increase a vibration fluctuation amount, thereby increasing a panel deformation amount.

Although the actuator <NUM> can be, for example, a resonant linear resonant actuator (LRA), the actuator <NUM> may be a piezoelectric, magnetostrictive, or electrostrictive vibrating element. Each actuator <NUM> is attached to the lower surface of the operation panel <NUM> within the non-viewing region 123B with the use of an adhesive or the like. The actuator <NUM> is disposed so that the operation panel <NUM> is displaced in the Z direction by vibration generated by the actuator <NUM>.

The acceleration sensor <NUM> is provided between the shaft part <NUM> and the pressure sensor <NUM>. Accordingly, the electronic device <NUM> includes twenty acceleration sensors <NUM>. The acceleration sensors <NUM> are provided to detect a state of vibration of the operation panel <NUM>. The state of vibration is, for example, an acceleration, an angular velocity, or the like of vibration in the Z direction. Note that the state of vibration may be detected by using a distortion sensor, an angular velocity sensor instead of the acceleration sensor <NUM>.

<FIG> is a block diagram illustrating a configuration of a vibration generation system <NUM> including the electronic device <NUM> and a control device <NUM>. The electronic device <NUM> and the control device <NUM> are connected to enable data communication through a bus or the like. In <FIG>, the sensor sheet 130A, the LCD 130B, the pressure sensor <NUM>, the actuator <NUM>, and the acceleration sensor <NUM> are illustrated as constituent elements of the electronic device <NUM>. The two actuators <NUM> included in each of the regions 120A1 to 120A5 are described as actuators <NUM> of any one of channels (CHs) <NUM> to <NUM>.

The control device <NUM> is realized by a computer including members such as a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), an input output interface, and an internal bus.

The control device <NUM> includes an image control part <NUM>, a request generation part <NUM>, a vibration waveform generation part <NUM>, a suppression control part <NUM>, an output part <NUM>, and a memory <NUM>. The image control part <NUM>, the request generation part <NUM>, the vibration waveform generation part <NUM>, the suppression control part <NUM>, and the output part <NUM> are functions of a program executed by the control device <NUM> illustrated as functional blocks. The memory <NUM> is a functional expression of a memory of the control device <NUM>.

The image control part <NUM> generates a GUI image or the like to be displayed on the LCD 130B. The GUI image is, for example, an image representing a push button. The image control part <NUM> determines contents of an operation input on the basis of coordinates detected by the sensor sheet 130A of the electronic device <NUM> and displays a GUI image or the like corresponding to the operation input at a cesired position of the LCD 130B.

The request generation part <NUM> generates a request signal including a vibration generation request requesting generation of vibration in at least one of the regions 120A1 to 120A5 of the operation panel <NUM> by using a pressing action detected by the pressure sensor <NUM> of the electronic device <NUM> and a position detected by the sensor sheet 130A.

For example, in a case where an operation input is performed within the region 120A1, the vibration generation request is a command to drive the actuators <NUM> of the CH1. It is assumed here that the request signal also includes a vibration suppression request to generate vibration that suppresses vibration in any of the regions 120A2 to 120A5. The request signal is transmitted to the vibration waveform generation part <NUM> and the suppression control part <NUM>. Data representing a combination indicating in which region the actuators <NUM> are driven on the basis of a vibration generation request and in which region the actuators <NUM> are driven on the basis of a vibration suppression request need just be stored in the memory <NUM>.

The vibration waveform generation part <NUM> generates vibration waveform data representing a vibration waveform for vibrating the actuators <NUM> of a channel indicated by the vibration generation request of the request signal and transmits the vibration waveform data to the output part <NUM>. Although the vibration waveform data is generated by using a pressing action detected by the pressure sensor <NUM> of the electronic device <NUM> and a position detected by the sensor sheet 130A in the present embodiment, a pressure value itself detected by the pressure sensor <NUM> in this process may be taken into consideration. In this way, suitable vibration waveform data according to an operation pressure can be generated.

The suppression control part <NUM> performs control for suppressing vibration propagating to a region other than a region where the actuators <NUM> driven on the basis of the vibration waveform data generated by the vibration waveform generation part are present. The suppression control part <NUM> generates suppression waveform data for driving the actuators <NUM> that generates driving force by substantially inverse-correcting a detected acceleration to suppress the acceleration of propagation in order to drive the actuators <NUM> of the channel indicated by the vibration suppression request of the request signal by using a position detected by the sensor sheet 130A of the electronic device <NUM> and an acceleration detected by the acceleration sensor <NUM> of each channel, and transmits the suppression waveform data to the output part <NUM>. For example, in a case where the channel indicated by the vibration generation request is CH1, the channel indicated by the vibration suppression request is at least one of CH2 to CH5. The control performed by the suppression control part <NUM> for generating the suppression waveform data by using the acceleration detected by the acceleration sensor <NUM> is feedback control. The suppression control part <NUM> generates a driving waveform that can suppress vibration substantially determination-corrected by using an acceleration. It is necessary to stabilize a controller in order to suppress propagated vibration without oscillation. Instability may be caused by a response delay such as a response delay or a calculation delay of the actuators <NUM>. In general, proportional integral derivative (PID) control is used to lessen such instability and achieve stabilization. Furthermore, stability can be further increased by adding phase compensation combining phase lead and delay compensation in order to lessen influence of a phase fluctuation caused by a secondary mode of the panel. Vibration generated by the actuators <NUM> driven on the basis of the vibration waveform data can be suppressed in a desired region by vibration generated by the actuators <NUM> driven on the basis of the suppression waveform data. As a result, local vibration can be generated. Furthermore, by performing vibration suppression in CH1 after end of the vibration request, vibration at the position can be speedily suppressed after generation of the local vibration, and thereby sharp vibration can be generated. Although the suppression waveform data is generated by using an acceleration detected by the acceleration sensor <NUM> in the present embodiment, vibration characteristics (natural vibration frequency) of a member such as the operation panel <NUM> may be taken into consideration in this process. In this way, suppression waveform data effective for vibration suppression can be generated on the basis of vibration characteristics of a member that contributes to vibration.

The output part <NUM> outputs a drive signal including vibration waveform data and suppression waveform data. As a result, the vibration waveform data and the suppression waveform data are transmitted to the actuators <NUM> of corresponding channels. The actuators <NUM> of the channel indicated by the vibration generation request are driven by the vibration waveform data, and the actuators <NUM> of the channel indicated by the vibration suppression request are driven by the suppression waveform data.

The memory <NUM> stores therein a program and data necessary for the control device <NUM> to control the electronic device <NUM> and temporarily stores therein a request signal and the like.

Note that the channel corresponding to the vibration suppression request need just be set in accordance with vibration characteristics of the operation panel <NUM> of the electronic device <NUM>. The operation panel <NUM> of the electronic device <NUM> is divided into the regions 120A1 to 120A5, and therefore vibration is hard to transmit between regions. However, in a case where the actuators <NUM> are driven in one region and it is desired to effectively suppress vibration in another region, it is only necessary to designate such a region by a vibration suppression request and drive the actuators <NUM> in a drive pattern for suppressing the vibration. It is only necessary to store, in the memory <NUM>, data representing a combination of a region or a channel of the actuators <NUM> designated by the vibration generation request and a region or a channel of the actuators <NUM> designated by the vibration suppression request.

<FIG> illustrate a simulation result of a vibration waveform generated in the operation panel <NUM>. <FIG> is a vibration waveform in a case where free vibration was generated for a simulation model of the operation panel <NUM> fixed to the frame <NUM> only at four points, specifically, the first suspension devices <NUM> (at an end portion on the -X direction side) and the tenth suspension devices <NUM> (at an end portion on the +X direction side). Vibration of a <NUM> mode that is a second order in the X direction and a first order in the Y direction is generated. <FIG> illustrates an example of a mode that is a fourth order in the X direction and a first order in the Y direction as a high-order mode.

<FIG> illustrates a vibration waveform in a case where a simulation model in which eight suspension devices <NUM> were disposed in the X direction and the operation panel <NUM> was attached to the frame <NUM> with the use of sixteen suspension devices <NUM> in total was driven under the same driving condition for driving the actuators <NUM> as that of <FIG>. In the simulation model of the operation panel <NUM> illustrated in <FIG>, the operation panel <NUM> is attached to the frame <NUM> in a similar manner by adding six suspension devices <NUM> to the operation panel <NUM> attached to the frame <NUM> with the use of the ten suspension devices <NUM> as illustrated in <FIG>.

<FIG> is a simulation result of a vibration waveform in a case where sixteen suspension devices <NUM> in total were disposed in <FIG>. Although the vibration waveform in <FIG> is a sinusoidal waveform, <FIG> shows that the vibration waveform changes due to influence of restraint given by fastening using the suspension devices <NUM>. <FIG> is a simulation result of a vibration waveform in a case where sixteen suspension devices <NUM> in total were disposed in <FIG>. <FIG> shows that there is influence of restraint given by fastening using the suspension parts even in a high-order mode. By fastening the operation panel <NUM> with the use of the suspension devices <NUM>, not a free vibration mode (vibration orders mn, m, and n are integers), but a vibration mode in which restrained parts formed by the suspension devices <NUM> serve as nodes is excited. That is, a size of a local position where vibration is easily excited can be changed depending on positions of the restrained parts.

Since the operation panel <NUM> is attached to the frame <NUM> with the use of the suspension devices <NUM> as described above, vibration in which the suspension devices substantially serve as nodes is likely to be excited in a case where vibration is generated by the actuators <NUM>. As a result, vibration is likely to be generated in a region where vibration is generated by the actuators <NUM> in the operation panel <NUM>. Furthermore, since the operation panel <NUM> is fastened with weak rigidity by elastic fastening using the rubber member <NUM> included in each suspension device <NUM>, vibration is excited only in the operation panel <NUM> while suppressing vibration propagation to the frame <NUM>.

Since the recessed part <NUM> is located between the regions, vibration generated in a predetermined region is absorbed by the recessed part <NUM>. In this way, vibration in a region other than a desired region is easily suppressed by a signal generated by the actuators <NUM> driven by suppression waveform data generated by the suppression control part <NUM>. As a result, local vibration only in the desired region can be obtained.

Therefore, it is possible to provide the electronic device <NUM> having a positional relationship between the plurality of suspension devices <NUM> and the plurality of actuators <NUM> of the operation panel <NUM> that generates local vibration in the operation panel <NUM>.

<FIG> illustrates a simulation result of vibration accelerations generated in the operation panel <NUM>. In <FIG>, the horizontal axis represents a time, and the vertical axis represents a vibration acceleration. In this example, simulation was conducted on the electronic device <NUM> having four channels (CH1 to CH4). A vibration instruction signal was vibration waveform data of a sinusoidal waveform of one cycle, a vibration request was a request to drive the actuators <NUM> of CH1, the vibration suppression request was a request to drive the actuators <NUM> of CH2 to CH4, and actuator drive signals of CH2 to CH4 were generated by suppression waveform data generated by the suppression control part <NUM> on the basis of acceleration data (vibration acceleration) detected by the acceleration sensor <NUM>. As is clear from <FIG>, a large vibration acceleration waveform based on the vibration instruction signal was generated as for CH1, and the actuators <NUM> of CH2 to CH4 exhibited a vibration acceleration of a small amplitude. Furthermore, as is clear from <FIG>, the vibration accelerations of the actuators <NUM> of CH1 to CH4 stably attenuated with passage of time after end of the drive instruction signal (one cycle of the sinusoidal waveform) of CH1.

<FIG> illustrates drive signals in a case where the vibration accelerations illustrated in <FIG> were obtained. In <FIG>, the horizontal axis represents a time, and the vertical axis represents a waveform of vibration waveform data or suppression waveform data included in a drive signal. In <FIG>, CH1 is the vibration instruction signal (drive waveform), and CH2 to CH4 are vibration suppression drive signals. The vibration instruction signal is a sinusoidal wave of one cycle and has a waveform that becomes <NUM> after end of the vibration drive instruction of one cycle. This is also reflected in the vibration instruction signal diagram of CH1. Furthermore, CH2 to CH4 have drive signal waveforms according to the accelerations observed in CH2 to CH4 in <FIG> since the actuators are driven by a vibration suppression drive signal generated based on an acceleration signal. Note that since the panel has a transmission loss resulting from vibration propagation and vibration absorption occurring due to the rubber members <NUM> of the suspension devices <NUM>, vibration itself decreases as a propagation distance increases. As is clear from <FIG>, the amplitude of CH2, which is close to CH1 in which vibration is generated by the vibration instruction signal, is large, and the amplitude of CH4 is small.

<FIG> illustrate a simulation result of an intensity distribution of a vibration waveform generated in the operation panel <NUM>. <FIG> illustrates a vibration waveform obtained in a case where only the actuators <NUM> of CH2 were driven by a drive signal including vibration waveform data. A region where a vibration intensity is high is generated in the region 120A2 (see <FIG>) corresponding to CH2, and vibration excitation corresponding to a vibration mode of the panel indicated by arrow B1 is observed. Unnecessary vibration is generated at arrow <NUM> although a vibration presentation target region based on the drive instruction signal is the region 120A2. In the vibration mode of the panel, panel vibration in which positions restrained by the suspension devices <NUM> serve as nodes of vibration is likely to be excited. B1 is located at an antinode of vibration between the suspension devices in the region 120A4. <FIG> illustrates an intensity distribution of a vibration waveform generated in the operation panel <NUM> in a case where the actuators <NUM> of CH2 were driven by a drive signal including vibration waveform data, and the actuators <NUM> of CH4 were disposed at a position of B1 and driven by a vibration suppression signal generated based on a detected acceleration signal. Although the intensity distribution of B1 caused by vibration mode excitation corresponding to the panel vibration mode is seen in <FIG>, the vibration intensity is lessened as indicated by B2 due to an effect of the vibration suppression control based on the vibration suppression signal in <FIG>. Although the effect of the vibration suppression control is given by disposing the actuators at B1 in this example, excitation of vibration is also observed in an end portion of the region 120A1 and an end portion of the region 120A5 as observed in <FIG>. Since an increase in vibration occurs at the end portions, vibration may be suppressed by also disposing an actuator at a panel end portion.

The operation panel <NUM> has various vibration modes, and there occurs a pattern in which vibration is also excited in a region where a driven instruction signal is not given as a frequency of the drive instruction signal changes. Meanwhile, since the operation panel <NUM> is elastically restrained by the suspension devices <NUM>, a vibration mode excited in the operation panel <NUM> is substantially restricted to a position corresponding to a panel vibration mode in which elastic restraint points serve as nodes, and an antinode of vibration is likely to be located between the suspension devices <NUM>. Therefore, it is possible to suppress vibration generated in a region other than a region where a drive instruction signal is given by disposing the actuators <NUM> between the suspension devices <NUM> and performing vibration suppression control on the actuators <NUM> other than the actuators <NUM> to which the drive instruction signal is given. Therefore, also in a case where driving of the actuators <NUM> based on a drive signal including suppression waveform data is added, it is possible to provide the electronic device <NUM> having a positional relationship between the plurality of suspension devices <NUM> and the plurality of actuators <NUM> of the operation panel <NUM> that generates local vibration in the operation panel <NUM>. In a case where vibration can be generated not in the whole operation panel <NUM> but locally (only in a portion), application of the electronic device <NUM> is widened, and the electronic device <NUM> can be mounted in more products.

Furthermore, each of the suspension devices <NUM> has the holder <NUM>, the rubber member <NUM>, and the shaft part <NUM>, and the rubber member <NUM> is provided between the holder <NUM> fixed to the frame <NUM> and the shaft part <NUM> fixed to the operation panel <NUM>, and thereby the operation panel <NUM> is elastically fastened to the frame <NUM>. The suspension devices <NUM> are suspensions and serve as nodes of vibration of the operation panel <NUM> to lessen vibration, but permit a certain degree of vibration without totally lessening vibration. By disposing such suspension devices <NUM> at boundaries between the regions 120A1 to 120A5, the operation panel <NUM> is divided into the regions 120A1 to 120A5, and thus a configuration in which vibration is hard to transmit to another region is realized. By providing such suspension devices <NUM>, local vibration is generated in the operation panel <NUM>.

Furthermore, since the holder <NUM> extends toward an inner side of the frame <NUM> having a frame shape, the operation panel <NUM> can be easily attached with the rubber member <NUM> interposed therebetween. Furthermore, since a portion of the holder <NUM> extending to the inner side of the frame <NUM>, the rubber member <NUM>, and the shaft part <NUM> are disposed within the non-viewing region 123B of the operation panel <NUM>, the members can be efficiently disposed without hindering display on the LCD 130B.

Furthermore, since the actuators <NUM> are disposed within the non-viewing region 123B, the actuators <NUM> can be efficiently disposed without hindering display on the LCD 130B, and the actuators <NUM> can be disposed between adjacent suspension devices <NUM> (between attaching parts), and vibration can be efficiently generated in the regions (120A1 to 120A5) of the operation panel <NUM>. Furthermore, by disposing the actuators <NUM> at a center between adjacent suspension devices <NUM>, vibration can be more efficiently generated in the regions (120A1 to 120A5) of the operation panel <NUM>.

Furthermore, since the operation panel <NUM> is a quadrangular panel having a longitudinal direction in plan view, it is easy to generate vibration in the longitudinal direction. Furthermore, since the plurality of actuators <NUM> are disposed along the longitudinal direction of the operation panel <NUM>, vibration can be efficiently generated in the operation panel <NUM>.

Although an aspect in which the holder <NUM> of each suspension device <NUM> is made of a material having nigh rigidity has been described above, the holder <NUM> may nave elasticity, and each suspension device <NUM> may be realized by elasticity of the holder <NUM> and elasticity of the rubber member <NUM>.

Although a configuration in which the actuators <NUM> are disposed between adjacent suspension devices <NUM> has been described above, the actuators <NUM> may be provided at the same position as the suspension devices <NUM>. For example, in a case where the actuators <NUM> are attached to lower surface sides of the holders <NUM> of the suspension devices <NUM>, a vibration axis of the actuators <NUM> and a holding axis of the suspension devices <NUM> that hold the opera on panel <NUM> with respect to the frame <NUM> are aligned. According to such a configuration, vibration generation force of the actuators <NUM> is easily transmitted to portions (fixed portions) of the operation panel <NUM> fixed by the suspension devices <NUM>, the vibration generation force of the actuators <NUM> transmitted to the fixed portions increases relatively, and it becomes easier to vibrate the fixed portions.

Although an aspect in which the operation panel <NUM> nas the recessed parts <NUM> on the lower surface thereof has been described above, the operation panel <NUM> need not necessarily have the recessed parts <NUM>. <FIG> illustrates an electronic device 100M1 according to a modification of the first embodiment. The electronic device 100M1 includes an operation panel 120M1 instead of the operation panel <NUM> of the electronic device <NUM> illustrated in <FIG>. The number of channels is three, and the operation panel 120M1 is divided into three regions in the X direction. One actuator <NUM> is provided on each of the +Y direction side and the -Y direction side in each of the regions. Furthermore, the suspension device <NUM> is provided on both sides of each actuator <NUM>. Accordingly, the electronic device 100M1 includes six actuators <NUM> and eight suspension devices <NUM>. Also in the electronic device 100M1 having such a configuration, the operation panel <NUM> is divided into a plurality of regions by the suspension devices <NUM>, and occurrence of vibration in a region other than a region where two actuators <NUM> are driven by a drive signal including vibration waveform data can be suppressed irrespective of whether or not the actuators <NUM> are driven by a drive signal including suppression waveform data in the region other than the region where two actuators <NUM> are driven by a drive signal including vibration waveform data.

Although an aspect in which the plurality of suspension devices <NUM> are disposed along the longitudinal direction of the operation panel <NUM> has been described above, one or a plurality of suspension devices <NUM> may be disposed along the short-side direction of the operation panel <NUM> in addition to the longitudinal direction or instead of the longitudinal direction. In this case, the operation panel <NUM> can also be divided into a plurality of regions in the short-side direction.

Although an aspect in which the plurality of actuators <NUM> are disposed along the longitudinal direction of the operation panel <NUM> has been described above, one or a plurality of actuators <NUM> may be disposed along the short-side direction of the operation panel <NUM> in addition to the longitudinal direction or instead of the longitudinal direction.

Therefore, it is possible to provide the electronic device 100M1 having a positional relationship between the plurality of suspension devices <NUM> and the plurality of actuators <NUM> of the operation panel 120M1 that generates local vibration in the operation panel 120M1.

Although an aspect in which the suspension devices <NUM> are provided along only end sides of the operation panel <NUM> extending in the X direction has been described above, the suspension devices <NUM> may be provided along both end sides of the operation panel <NUM> extending in the X direction and end sides of the operation panel <NUM> extending in the Y direction. <FIG> illustrates an electronic device 100M2 according to a modification of the first embodiment.

The electronic device 100M2 includes a frame <NUM>, an operation panel 120M2, suspension devices <NUM>, actuators <NUM>, and acceleration sensors <NUM>. Altnough the electronic device 100M2 also includes a sensor sheet 130A, an LCD 130B, and a pressure sensor <NUM>, these members are omitted in <FIG>.

The electronic device 100M2 is different from the electronic device 100M1 illustrated in <FIG> in that the suspension devices <NUM>, the operation panel <NUM>, the actuators <NUM>, and the acceleration sensors <NUM> are provided along both end sides in the X direction and end sides in the Y direction. <FIG> illustrates a configuration in which two suspension devices <NUM> are provided along each side of the operation panel <NUM> in the Y direction in the electronic device <NUM> illustrated in <FIG>. The electronic device 100M2 includes fourteen suspension devices <NUM> in total. Note that the actuators <NUM> are provided only along the end sides of the operation panel <NUM> extending in the X direction.

The four suspension devices <NUM> provided along the end sides of the operation panel <NUM> extending in the Y direction are, for example, provided to suppress peaks of vibration at both ends in the X direction in <FIG>. Among the regions 120A1 to 120A5 (see <FIG>), the regions 120A1 and 120A5 are adjacent to the regions 120A2 and 120A4 only on one side in the X direction, respectively. This is different from a structure having high connection rigidity such as the regions 120A2 to 120A4 that has an adjacent region on both sides in the X direction. Accordingly, the regions 120A1 and 120A5 have lower connection rigidity in the X direction than the regions 120A2 to 120A4. Accordingly, as illustrated in <FIG>, vibration is hard to be suppressed and a vibration peak tends to be large in a portion having low connection rigidity such as an end portion of the region 120A1 on the - X direction side and an end portion of the region 120A5 on the +X direction side. In the electronic device 100M2, to suppress such a vibration peak, vibration is suppressed by also providing the suspension devices <NUM> along the end sides of the operation panel <NUM> extending in the Y direction.

Although a configuration in which two suspension devices <NUM> are disposed along each of the end sides extending in the Y direction is illustrated, three or more suspension devices <NUM> may be provided along each of the end sides. Furthermore, although a configuration in which the suspension devices <NUM> are disposed along the end sides extending in the Y direction is illustrated, the actuators <NUM> may be disposed instead of this or in addition to this. In this case, operation similar to the actuators <NUM> disposed along the end sides extending in the X direction is performed.

<FIG> is a plan view illustrating an electronic device <NUM> according to a second embodiment. In the following description, an XYZ coordinate system is defined as in the first embodiment. In the following description, plan view is a XY plane view. Although a -Z direction side is referred to as a lower side or down and a +Z direct on side is referred to as an upper side or up for convenience of description, this does not indicate a universal up-down relationship. Furthermore, a thickness is a dimension in a Z direction unless otherwise specified.

In the following description, constituent elements similar to those of the electronic device <NUM> according to the first embodiment are given identical reference signs, and description thereof is omitted. The electronic device <NUM> includes an operation panel <NUM>, a sensor sheet 230A, a suspension device <NUM>, and an actuator <NUM>. In <FIG>, a member that serves as a frame of the electronic device <NUM> is omitted. In the second embodiment, the member that serves as the frame of the electronic device <NUM> is, for example, an interior panel of a vehicle. The interior panel is provided on the -Z direction side of the operation panel <NUM> in <FIG>. The operation panel <NUM> is an interior panel attached on an interior side of the vehicle, and <FIG> is a view seen through the member from a back surface side. Note that although the electronic device <NUM> includes an acceleration sensor <NUM> (see <FIG>, <FIG>, and <FIG>), the acceleration sensor <NUM> is omitted in <FIG>.

The electronic device <NUM> includes, for example, eleven suspension devices <NUM>. Among the eleven suspension devices <NUM>, seven suspension devices 140A provided on an outer edge side of the operation panel <NUM> in plan view are an example of first attaching parts, and four suspension devices 140B provided around the actuator <NUM> within a region surrounded by the seven suspension devices 140A are an example of second attaching parts. The outer edge side of the operation panel <NUM> in plan view is a side closer to an outer edge than a central side of the operation panel <NUM> in plan view. The region surrounded by the seven suspension devices 140A is a region surrounded by a line connecting regions where the seven suspension devices 140A are located in plan view.

Hereinafter, the suspension devices 140A and the suspension devices 140B are simply referred to as suspension devices <NUM> in a case where the suspension devices 140A and the suspension devices 140B are not distinguished from each other. As for the suspension devices <NUM>, a holder <NUM>, three through holes 141B of the holder <NUM>, and a screw <NUM> are illustrated in <FIG>, and other constituent elements (e.g., a cutout part 141A of the holder <NUM>, a rubber member <NUM>, and a shaft part <NUM>) are described with reference to <FIG> and <FIG>.

Although the suspension devices <NUM> are similar to the suspension devices <NUM> illustrated in <FIG> and <FIG>, a direction in which three screws 145B are inserted into the holder <NUM> in the second embodiment is reverse to that in the first embodiment. In the first and second ertbodiments, a direction from a screw head toward a tip of the screw <NUM> that fixes the rubber member <NUM> is the +Z direction. Although the screws 145B are inserted through the three through holes 141B of the holder <NUM> from the -Z direction side toward the +Z direction side in the first embodiment, the screws 145B are inserted through the through holes 141B of the holder <NUM> from the +Z direction side toward the -Z direction side and thereby the holder <NUM> is attached to an interior panel with the use of the screws 145B in the first embodiment.

Furthermore, the rubber member <NUM> is attached to a surface of the operation panel <NUM> on the -Z direction side by the shaft part <NUM> and the screw <NUM>. <FIG> illustrates a state where an outer peripheral part of the rubber member <NUM> attached to the surface of the operation panel <NUM> on the -Z direction side is engaged with the cutout part 141A of the holder <NUM>. The operation panel 220A is attached to the interior panel by engaging the rubber member <NUM> with the cutout part 141A of the holder <NUM> attached on the +Z direction side of the interior panel.

The sensor sheet 230A is provided on the -Z direction side of a central part (a part that is located in a central part of the operation panel <NUM> in the X direction and is located in a central part of the operation panel <NUM> in the Y direction) of the operation panel <NUM> in plan view. The sensor sheet 230A has a rectangular shape in plan view, and the four suspension devices 140B are provided outside four corners of a region where the sensor sheet 230A is provided.

The sensor sheet 230A is similar to the sensor sheet 130A according to the first embodiment and detects a position (coordinates) of an operation input performed on an operation surface of the operation panel <NUM> on the +Z direction side. In the second embodiment, a region where a position of an operation input performed on the operation panel <NUM> is detectable is a region that overlaps the sensor sheet 230A in plan view.

The actuator <NUM> is provided at a center of the operation panel <NUM> in plan view. The actuator <NUM> is provided so as to be superimposed on a -Z direction side of the sensor sheet 230A. The actuator <NUM> generates vibration in the operation panel <NUM> and provides a tactile impression to a fingertip or the like of a user who touches the surface of the operation panel <NUM> on the +Z direction side.

<FIG> illustrates a vibration system of the electronic device <NUM>. It is, for example, assumed that third-order mode vibration is generated in the operation panel <NUM>. For example, it is assumed that two vibrations having a peak on the +X direction side and the -X direction side are generated in a region on a +Y direction side relative to a center in the Y direction of the operatior panel <NUM> illustrated in <FIG> and that a single signal is generated in a region on a -Y direction side relative to the center in the Y direction of the operation panel <NUM> illustrated in <FIG>.

In such a case, the vibrating operation panel <NUM> is virtually divided into three parts, and a mass of the operation panel <NUM> can be virtually divided into three masses m1, m2, and m3.

By thus dividing the operation panel <NUM> into three parts, the electronic device <NUM> can be grasped as a vibration system in which the masses m1, m2, and m3 vibrate, as illustrated in <FIG>. For example, the actuator <NUM> is regarded as being fixed to a portion of the mass m2.

<FIG> illustrates vibration characteristics for comparison. <FIG> illustrates frequency characteristics of a vibration intensity at an actuator attachment point in a case where the operation panel <NUM> from which the actuator <NUM> has been detached is attached to the interior panel and is resonated. As illustrated in <FIG>, a sharp peak was generated in bands of approximately <NUM>, approximately <NUM>, and approximately <NUM>.

<FIG> illustrates vibration characteristics of the second embodiment. <FIG> illustrates frequency characteristics of a vibration intensity in a case where the actuator <NUM> is disposed on the operation panel <NUM>, is attached to the interior panel, and is resonated. As illustrated in <FIG>, the vibration intensity of approximately <NUM> was remarkably reduced, the vibration intensity of approximately <NUM> was also reduced, and a large vibration intensity was obtained at approximately <NUM> due to resonance of the actuator <NUM>. Since the vibration intensity of the actuator <NUM> is larger than the vibration intensity at approximately <NUM>, it has been revealed that vibration of the actuator <NUM> proactively generates resonance. Such vibration is locally generated within a region surrounded by the four suspension devices 140B in the central part of the operation panel <NUM> in plan view.

Due to these effects, an equivalent mass of m2 is increased by adding a resonance system in which an actuator mass is connected with a spring and a damper interposed therebetween, as illustrated in <FIG>. As a result, m1 = m3 < m2. Since transmission energy is constant, an amount of vibration amplitude of m2 caused due to influence of m1 and m3 decreases. It is considered that vibration of the actuator <NUM> is proactively expressed since the resonance system in which the actuator mass is connected with a soring and a damper interposed therebetween is added in this state. Note that the resonance system of the actuator <NUM> may be an LRA type having a movable element inside an actuator or may be a resonance system in which a spring and a damper system are connected to a VCM movable part.

Although a panel mode in which the panel elastically vibrates and an operation region and others are in a third-order mode is used, the mode is not limited to the third-order mode, and it is desirable to select a vibration mode that can cover the operation region. In a case where a high-order mode such as a fourth order or a fifth order is selected, influence of plural orders appears more. In order to reduce the influence, the order of the vibration mode may be reduced by reducing rigidity (reducing a thickness) of the operation region.

Claim 1:
An electronic device (<NUM>, 100M1, 100M2) comprising:
a holding member;
an operation panel (<NUM>, 120M1, 120M2) configured for a user to perform an operation input on;
a plurality of attaching parts that are configured to attach the operation panel to the holding member;
a plurality of actuators (<NUM>) each of which is provided between adjacent attaching parts among the plurality of attaching parts in plan view and which is configured to generate vibration in the operation panel (<NUM>, 120M1, 120M2);
a position detection part that is configured to detect a position where the operation input is performed; and
a control part that is configured to drive at least one of the plurality of actuators (<NUM>) in accordance with a position detected by the position detection part, wherein
the attaching parts are suspension devices (<NUM>) that are configured to lessen vibration between the operation panel (<NUM>, 120M1, 120M2) and the holding member and
characterized in that
each of the suspension devices (<NUM>) has an extending part that is fixed to the holding member and extends from the holding member toward the operation panel (<NUM>, 120M1, 120M2) and an elastic member that is provided between the extending part and the operation panel (<NUM>, 120M1, 120M2).