JP6399216B2 - Drive control apparatus, electronic device, drive control program, and drive control method - Google Patents

Description

  The present invention relates to a drive control device, an electronic apparatus, a drive control program, and a drive control method.

  Conventionally, an input guide that displays a touch panel, a detection unit that detects input coordinates, and an input guide that includes the selected character as a selected character and a candidate character that has a specific relationship with the selected character. There is a character input device that includes a display unit and an operation determination unit that determines whether the operation is a touch-down operation, a touch-up operation, or a flick operation. In the case of the touchdown operation, the guide button area of the selected character of the input guide is set as the fixed area, and in the case of the flick operation, the area of the guide button of the candidate character specified at the position after the slide is set as the fixed area. In the case of the touch-up operation, a character input control unit that confirms the characters in the confirmed area as input characters is further provided. In the case of the flick operation, the character input control unit expands the determined area (see, for example, Patent Document 1).

JP, 2015-002520, A

  In the conventional character input device, when the input coordinate moves from the input area of the selected character to the input area of the candidate character, the user visually recognizes the boundary between the two input areas and selects either the selected character or the candidate character. Select.

  However, it is difficult to visually recognize the boundary between two input areas, and an input error may occur. Further, such a problem is not limited to inputting characters, and similarly occurs when inputting numbers or various symbols.

  Therefore, an object is to provide a drive control device, an electronic device, a drive control program, and a drive control method that support accurate input.

A drive control apparatus according to an embodiment of the present invention includes a display unit, a top panel provided on a display surface side of the display unit and having an operation surface, and a position for detecting a position of an operation input performed on the operation surface. A drive control device for driving the vibration element of an electronic apparatus including a detection unit and a vibration element that generates vibration on the operation surface, wherein the symbol input unit is displayed on the display unit and used for inputting a symbol. A symbol having a first input unit used for inputting a first symbol and a plurality of second input units displayed around the first input unit and used for inputting a plurality of different second symbols. An area representing positions of image data representing an image of the input section, a first area corresponding to the display area of the first input section, and a plurality of second areas corresponding to the display areas of the plurality of second input sections. A storage unit for storing data and the operation surface A drive control unit that drives the vibration element with a drive signal that generates a natural vibration of a waveband, wherein the position of the operation input moves outside the first region and the plurality of second regions; or A drive control unit that drives the vibration element with a first vibration pattern so that the intensity of the natural vibration changes when the boundary between the second regions is reached, and the first region includes the first input unit. The first display area is equal to or includes the first display area and is larger than the first display area, and each of the plurality of second areas includes a plurality of second input sections. equal to second display region, or comprises a plurality of second display areas, wherein Ri plurality of large regions der than the second display region, the region data, the first region and the plurality of second regions In addition to the position of This is data representing the position of a third region provided between the second regions corresponding to the second display regions and not driving the vibration element, and is operated from one of the adjacent second input units to the other. When the input position moves, the second area corresponding to the other second input portion expands toward the third area, and the third area becomes narrower by the amount of the second area .

  It is possible to provide a drive control device, an electronic device, a drive control program, and a drive control method that support accurate input.

It is a perspective view which shows the electronic device of embodiment. It is a top view which shows the electronic device of embodiment. It is a figure which shows the AA arrow cross section of the electronic device shown in FIG. It is a figure which shows the wave front formed in parallel with the short side of a top panel among the standing waves which arise in a top panel by the natural vibration of an ultrasonic band. It is a figure explaining a mode that the dynamic friction force applied to the fingertip which performs operation input changes with the natural vibration of the ultrasonic band produced on the top panel of an electronic device. It is a figure which shows the structure of the electronic device of embodiment. It is a figure which shows the input screen of the mail of an electronic device. It is a figure which shows the area | region where the input to a GUI button is received. It is a figure which expands and shows a part of input part shown in FIG. It is a figure which shows the positional relationship with the area | region which generate | occur | produces a vibration, the area | region which does not generate a vibration, and the boundary of the input area of a GUI button. It is a figure which shows the data which linked | related application ID, image data, 1st area | region data, 2nd area | region data, and a vibration pattern. It is a flowchart which shows the process which the drive control part of the electronic device of embodiment performs. It is a figure which shows an example of the time change of the amplitude of the natural vibration of the ultrasonic zone which arises in a top panel. It is a figure which shows the modification of embodiment. It is a figure which shows the modification of embodiment. It is a figure which shows the modification of embodiment. It is a figure which shows the modification of embodiment. It is a figure which shows the modification of embodiment. It is a figure which shows the modification of embodiment. It is a figure which shows the modification of embodiment. It is a figure which shows the modification of embodiment. It is a figure which shows the modification of embodiment. It is a figure which shows the modification of embodiment.

  Embodiments to which the drive control device, electronic device, drive control program, and drive control method of the present invention are applied will be described below.

<Embodiment>
FIG. 1 is a perspective view showing an electronic device 100 according to an embodiment.

  As an example, the electronic device 100 is a smartphone terminal or a tablet computer using a touch panel as an input operation unit. The electronic device 100 may be any device that uses a touch panel as an input operation unit. For example, the electronic device 100 is a device that is installed and used in a specific place such as a portable information terminal or ATM (Automatic Teller Machine). May be.

  The input operation unit 101 of the electronic device 100 is provided with a display panel below the touch panel. Various buttons 102A or a slider 102B or the like (hereinafter referred to as GUI operation unit 102) using a GUI (Graphic User Interface) is provided on the display panel. Is displayed).

  A user of the electronic device 100 usually touches the input operation unit 101 with a fingertip in order to operate the GUI operation unit 102.

  Next, a specific configuration of the electronic device 100 will be described with reference to FIG.

  FIG. 2 is a plan view showing the electronic device 100 according to the embodiment, and FIG. 3 is a view showing a cross section taken along the line AA of the electronic device 100 shown in FIG. 2 and 3, an XYZ coordinate system that is an orthogonal coordinate system is defined as shown.

  The electronic device 100 includes a housing 110, a top panel 120, a double-sided tape 130, a vibration element 140, a touch panel 150, a display panel 160, and a substrate 170.

  The housing 110 is made of, for example, resin, and as shown in FIG. 3, the substrate 170, the display panel 160, and the touch panel 150 are disposed in the recess 110 </ b> A, and the top panel 120 is bonded by the double-sided tape 130. .

  The top panel 120 is a thin flat plate member that is rectangular in plan view, and is made of transparent glass or a reinforced plastic such as polycarbonate. The surface of the top panel 120 (the surface on the Z-axis positive direction side) is an example of an operation surface on which the user of the electronic device 100 performs operation input.

  In the top panel 120, the vibration element 140 is bonded to the surface in the negative direction of the Z axis, and four sides in a plan view are bonded to the housing 110 with a double-sided tape 130. The double-sided tape 130 only needs to be able to bond the four sides of the top panel 120 to the housing 110, and does not have to be a rectangular ring as shown in FIG.

  A touch panel 150 is disposed on the Z-axis negative direction side of the top panel 120. The top panel 120 is provided to protect the surface of the touch panel 150. Further, another panel or a protective film may be provided on the surface of the top panel 120.

  The top panel 120 vibrates when the vibration element 140 is driven in a state where the vibration element 140 is bonded to the surface in the negative Z-axis direction. In the embodiment, the top panel 120 is vibrated at the natural vibration frequency of the top panel 120 to generate a standing wave in the top panel 120. However, since the vibration element 140 is bonded to the top panel 120, it is actually preferable to determine the natural vibration frequency in consideration of the weight of the vibration element 140 and the like.

  The vibration element 140 is bonded to the surface of the top panel 120 on the Z-axis negative direction side along the short side extending in the X-axis direction on the Y-axis positive direction side. The vibration element 140 may be an element that can generate vibrations in an ultrasonic band. For example, an element including a piezoelectric element such as a piezoelectric element can be used.

  The vibration element 140 is driven by a drive signal output from a drive control unit described later. The amplitude (intensity) and frequency of vibration generated by the vibration element 140 are set by the drive signal. Further, on / off of the vibration element 140 is controlled by a drive signal.

  In addition, an ultrasonic band means a frequency band about 20 kHz or more, for example. In the electronic device 100 according to the embodiment, the frequency at which the vibration element 140 vibrates is equal to the frequency of the top panel 120. Therefore, the vibration element 140 is driven by a drive signal so as to vibrate at the natural frequency of the top panel 120. Is done.

  The touch panel 150 is disposed on the display panel 160 (Z-axis positive direction side) and below the top panel 120 (Z-axis negative direction side). The touch panel 150 is an example of a position detection unit that detects a position where the user of the electronic device 100 touches the top panel 120 (hereinafter referred to as an operation input position).

  On the display panel 160 below the touch panel 150, various buttons and the like (hereinafter referred to as GUI operation unit) by GUI are displayed. For this reason, the user of the electronic device 100 usually touches the top panel 120 with a fingertip in order to operate the GUI operation unit.

  The touch panel 150 may be a position detection unit that can detect the position of an operation input to the user's top panel 120, and may be, for example, a capacitance type or resistance film type position detection unit. Here, a mode in which the touch panel 150 is a capacitance type position detection unit will be described. Even if there is a gap between the touch panel 150 and the top panel 120, the capacitive touch panel 150 can detect an operation input to the top panel 120.

  In addition, here, a form in which the top panel 120 is disposed on the input surface side of the touch panel 150 will be described, but the top panel 120 may be integrated with the touch panel 150. In this case, the surface of the touch panel 150 becomes the surface of the top panel 120 shown in FIGS. 2 and 3, and an operation surface is constructed. Moreover, the structure which excluded the top panel 120 shown in FIG.2 and FIG.3 may be sufficient. Also in this case, the surface of the touch panel 150 constructs the operation surface. In this case, the member having the operation surface may be vibrated by the natural vibration of the member.

  In the case where the touch panel 150 is a capacitive type, the touch panel 150 may be disposed on the top panel 120. Also in this case, the surface of the touch panel 150 constructs the operation surface. Moreover, when the touch panel 150 is a capacitance type, the structure which excluded the top panel 120 shown in FIG.2 and FIG.3 may be sufficient. Also in this case, the surface of the touch panel 150 constructs the operation surface. In this case, the member having the operation surface may be vibrated by the natural vibration of the member.

  The display panel 160 may be a display unit that can display an image, such as a liquid crystal display panel or an organic EL (Electroluminescence) panel. The display panel 160 is installed on the substrate 170 (Z-axis positive direction side) by a holder or the like (not shown) inside the recess 110A of the housing 110.

  The display panel 160 is driven and controlled by a driver IC (Integrated Circuit), which will be described later, and displays a GUI operation unit, images, characters, symbols, graphics, and the like according to the operation status of the electronic device 100.

  The substrate 170 is disposed inside the recess 110 </ b> A of the housing 110. A display panel 160 and a touch panel 150 are disposed on the substrate 170. The display panel 160 and the touch panel 150 are fixed to the substrate 170 and the housing 110 by a holder or the like (not shown).

  In addition to the drive control device described later, various circuits necessary for driving the electronic device 100 are mounted on the substrate 170.

  In the electronic device 100 configured as described above, when a user's finger contacts the top panel 120 and the movement of the fingertip is detected, the drive control unit mounted on the substrate 170 drives the vibration element 140, and the top panel 120. Is vibrated at the frequency of the ultrasonic band. The frequency of this ultrasonic band is a resonance frequency of a resonance system including the top panel 120 and the vibration element 140 and causes the top panel 120 to generate a standing wave.

  The electronic device 100 provides a tactile sensation to the user through the top panel 120 by generating a standing wave in the ultrasonic band.

  Next, standing waves generated in the top panel 120 will be described with reference to FIG.

  FIG. 4 is a diagram showing a wave front formed in parallel to the short side of the top panel 120 among standing waves generated in the top panel 120 due to the natural vibration of the ultrasonic band, and FIG. 4A is a side view. (B) is a perspective view. 4A and 4B, XYZ coordinates similar to those in FIGS. 2 and 3 are defined. In FIGS. 4A and 4B, the amplitude of the standing wave is exaggerated for ease of understanding. In FIGS. 4A and 4B, the vibration element 140 is omitted.

  When the Young's modulus E, density ρ, Poisson's ratio δ, long side dimension l, thickness t of the top panel 120 and the standing wave period k existing in the long side direction are used, the natural frequency of the top panel 120 is obtained. (Resonance frequency) f is expressed by the following equations (1) and (2). Since the standing wave has the same waveform in units of ½ period, the number of periods k takes values in increments of 0.5, which are 0.5, 1, 1.5, 2.

なお、式（２）の係数αは、式（１）におけるｋ^２以外の係数をまとめて表したものである。

Note that the coefficient α in Expression (2) collectively represents coefficients other than k ² in Expression (1).

  The standing waves shown in FIGS. 4A and 4B are waveforms when the number of periods k is 10, as an example. For example, when the Gorilla (registered trademark) glass having a long side length l of 140 mm, a short side length of 80 mm, and a thickness t of 0.7 mm is used as the top panel 120, the period number k is 10. In this case, the natural frequency f is 33.5 [kHz]. In this case, a drive signal having a frequency of 33.5 [kHz] may be used.

  The top panel 120 is a flat plate member. When the vibration element 140 (see FIGS. 2 and 3) is driven to generate the natural vibration of the ultrasonic band, the top panel 120 is changed to (A) and (B) in FIG. By bending as shown, a standing wave is generated on the surface.

  Note that, here, a description will be given of a mode in which one vibration element 140 is bonded along the short side extending in the X-axis direction on the Y-axis positive direction side on the surface of the top panel 120 on the Z-axis negative direction side. Two vibration elements 140 may be used. When two vibration elements 140 are used, the other vibration element 140 is bonded to the surface of the top panel 120 on the Z-axis negative direction side along the short side extending in the X-axis direction on the Y-axis negative direction side. That's fine. In this case, the two vibration elements 140 may be arranged so as to be axially symmetric with respect to a center line parallel to the two short sides of the top panel 120 as a symmetry axis.

  In addition, when the two vibration elements 140 are driven, they may be driven with the same phase when the number of periods k is an integer, and with opposite phases when the number of periods k is a decimal (a number including an integer part and a decimal part). It can be driven by.

  Next, the natural vibration of the ultrasonic band generated in the top panel 120 of the electronic device 100 will be described with reference to FIG.

  FIG. 5 is a diagram illustrating a state in which the dynamic friction force applied to the fingertip that performs the operation input changes due to the natural vibration of the ultrasonic band generated in the top panel 120 of the electronic device 100. 5A and 5B, the user performs an operation input to move the finger along the arrow from the back side of the top panel 120 to the near side while touching the top panel 120 with the fingertip. The vibration is turned on / off by turning on / off the vibration element 140 (see FIGS. 2 and 3).

  5A and 5B, in the depth direction of the top panel 120, the range in which the finger touches while the vibration is off is shown in gray, and the range in which the finger touches while the vibration is on is shown in white. .

  The natural vibration of the ultrasonic band occurs in the entire top panel 120 as shown in FIG. 4, but in FIGS. 5A and 5B, the user's finger is on the front side from the back side of the top panel 120. The operation pattern which switches on / off of a vibration during moving to is shown.

  For this reason, in FIGS. 5A and 5B, in the depth direction of the top panel 120, the range in which the finger touches while the vibration is off is shown in gray, and the range in which the finger touches while the vibration is on is white. Show.

  In the operation pattern shown in FIG. 5A, the vibration is turned off when the user's finger is on the back side of the top panel 120, and the vibration is turned on in the middle of moving the finger to the near side.

  On the other hand, in the operation pattern shown in FIG. 5B, the vibration is turned on when the user's finger is on the back side of the top panel 120, and the vibration is turned off in the middle of moving the finger to the near side. Yes.

  Here, when the natural vibration of the ultrasonic band is generated in the top panel 120, an air layer due to the squeeze effect is interposed between the surface of the top panel 120 and the finger, and the surface of the top panel 120 is traced with the finger. The coefficient of dynamic friction decreases.

  Accordingly, in FIG. 5A, the dynamic frictional force applied to the fingertip is large in the range indicated in gray on the back side of the top panel 120, and the dynamic frictional force applied to the fingertip is small in the range indicated in white on the near side of the top panel 120. Become.

  For this reason, as shown in FIG. 5A, the user who performs an operation input to the top panel 120 senses a decrease in the dynamic friction force applied to the fingertip and perceives the ease of slipping of the fingertip when the vibration is turned on. It will be. At this time, the user feels that a concave portion exists on the surface of the top panel 120 when the dynamic friction force decreases due to the surface of the top panel 120 becoming smoother.

  On the other hand, in FIG. 5B, the dynamic friction force applied to the fingertip is small in the range shown in white on the front side of the top panel 120, and the dynamic friction force applied to the fingertip is large in the range shown in gray on the front side of the top panel 120. Become.

  For this reason, as shown in FIG. 5B, the user who performs an operation input to the top panel 120 senses an increase in the dynamic friction force applied to the fingertip when the vibration is turned off, You will perceive the feeling of being caught. And when a dynamic friction force becomes high because it becomes difficult to slip a fingertip, it will feel like a convex part exists in the surface of the top panel 120. FIG.

  From the above, in the case of (A) and (B) in FIG. 5, the user can feel unevenness with the fingertip. Human perception of unevenness in this way is, for example, “Printed Transfer Method for Sticky Design and Sticky-band Illusion” (Proceedings of the 11th SICE System Integration Division Annual Conference (SI2010, Sendai) ___ 174 -177, 2010-12). It is also described in "Fishbone Tactile Illusion" (The 10th Annual Conference of the Virtual Reality Society of Japan (September 2005)).

  Here, the change in the dynamic friction force when switching on / off the vibration has been described, but this is the same when the amplitude (intensity) of the vibration element 140 is changed.

  Next, the configuration of the electronic device 100 according to the embodiment will be described with reference to FIG.

  FIG. 6 is a diagram illustrating a configuration of the electronic device 100 according to the embodiment.

  The electronic device 100 includes a vibration element 140, an amplifier 141, a touch panel 150, a driver IC (Integrated Circuit) 151, a display panel 160, a driver IC 160A, a control unit 200, a sine wave generator 310, and an amplitude modulator 320.

  The control unit 200 includes an application processor 220, a communication processor 230, a drive control unit 240, and a memory 250. The control unit 200 is realized by an IC chip, for example.

  In addition, the drive control unit 240, the sine wave generator 310, and the amplitude modulator 320 constitute the drive control device 300. Here, a mode in which the application processor 220, the communication processor 230, the drive control unit 240, and the memory 250 are realized by one control unit 200 will be described. However, the drive control unit 240 is provided outside the control unit 200. It may be provided as an IC chip or a processor. In this case, of the data stored in the memory 250, data necessary for drive control of the drive control unit 240 is stored in a memory different from the memory 250 and provided in the drive control device 300. That's fine.

  In FIG. 6, the casing 110, the top panel 120, the double-sided tape 130, and the substrate 170 (see FIG. 2) are omitted. Here, the amplifier 141, the driver IC 151, the driver IC 160A, the drive control unit 240, the memory 250, the sine wave generator 310, and the amplitude modulator 320 will be described.

  The amplifier 141 is disposed between the drive control device 300 and the vibration element 140 and amplifies the drive signal output from the drive control device 300 to drive the vibration element 140.

  The driver IC 151 is connected to the touch panel 150, detects position data indicating a position where an operation input to the touch panel 150 has been performed, and outputs the position data to the control unit 200. As a result, the position data is input to the application processor 220 and the drive control unit 240. Note that inputting position data to the drive control unit 240 is equivalent to inputting position data to the drive control apparatus 300.

  The driver IC 160A is connected to the display panel 160, inputs drawing data output from the drive control device 300 to the display panel 160, and causes the display panel 160 to display an image based on the drawing data. As a result, a GUI operation unit or an image based on the drawing data is displayed on the display panel 160.

  The application processor 220 performs processing for executing various applications of the electronic device 100.

  The communication processor 230 executes processing necessary for the electronic device 100 to perform communication such as 3G (Generation), 4G (Generation), LTE (Long Term Evolution), and WiFi.

  The drive control unit 240 outputs amplitude data to the amplitude modulator 320 when predetermined conditions are met. The amplitude data is data representing an amplitude value for adjusting the strength of the drive signal used for driving the vibration element 140. The amplitude value is set according to the temporal change degree of the position data.

  Here, as the temporal change degree of the position data, a speed at which the user's fingertip moves along the surface of the top panel 120 is used. The moving speed of the user's fingertip is calculated by the drive control unit 240 based on the temporal change degree of the position data input from the driver IC 151.

  Note that the frequency of the amplitude fluctuation of the natural vibration of the ultrasonic band generated on the top panel 120 by the amplitude data is set to a frequency of about 1 kHz or less so that a human can feel it with the tactile sensation of the fingertip.

  Further, the drive control device 300 according to the embodiment vibrates the top panel 120 in order to change the dynamic friction force applied to the fingertip when the user's fingertip moves along the surface of the top panel 120. Since the dynamic friction force is generated when the fingertip is moving, the drive control unit 240 vibrates the vibration element 140 when the moving speed becomes equal to or higher than a predetermined threshold speed. In addition, the drive control device 300 according to the embodiment outputs amplitude data to the amplitude modulator 320 when the position of the fingertip where the operation input is performed is within a predetermined region where vibration is to be generated.

  Whether or not the position of the fingertip that performs the operation input is within a predetermined region where the vibration is to be generated is based on whether or not the position of the fingertip that performs the operation input is within the predetermined region where the vibration is to be generated. Determined.

  Here, the position on the display panel 160 such as a GUI operation unit to be displayed on the display panel 160, a region for displaying an image, or a region representing the entire page is specified by region data representing the region. In all applications, the area data exists for all GUI operation units displayed on the display panel 160, areas for displaying images, or areas representing the entire page.

  As a type of operation input for moving the fingertip touching the surface of the top panel 120, for example, when operating the GUI operation unit, there is a so-called flick operation. The flick operation is an operation of moving a fingertip along a surface of the top panel 120 for a relatively short distance so as to be repelled (snapped).

  Further, when turning a page, for example, a swipe operation is performed. The swipe operation is an operation of moving a fingertip along a relatively long distance so as to sweep along the surface of the top panel 120. The swipe operation is performed, for example, when turning a photo in addition to turning the page. Further, when sliding the slider (see the slider 102B in FIG. 1) by the GUI operation unit, a drag operation for dragging the slider is performed.

  The operation input for moving the fingertip that touches the surface of the top panel 120, such as a flick operation, a swipe operation, and a drag operation, which are given here as examples, is selectively used depending on the type of display by the application. For this reason, when determining whether or not the position of the fingertip for performing the operation input is within a predetermined region where vibration is to be generated, the type of application in which the electronic device 100 is activated is related.

  The drive control unit 240 determines whether or not the position represented by the position data input from the driver IC 151 is within a predetermined area where vibration is to be generated, using the area data.

  Data that associates data representing the type of application, area data representing a GUI operation unit or the like on which an operation input is performed, and pattern data representing a vibration pattern is stored in the memory 250.

  In addition, the drive control unit 240 calculates the change in the position of the fingertip during the required time from when the position data is input to the drive control device 300 from the driver IC 151 until the drive signal is calculated based on the position data. In order to interpolate, the following processing is performed.

  The drive control device 300 performs calculation every predetermined control cycle. The same applies to the drive control unit 240. For this reason, if the required time from when the position data is input from the driver IC 151 to the drive control device 300 until the drive control unit 240 calculates the drive signal based on the position data is Δt, the required time Δt is the control time. Equal to the period.

  Here, the moving speed of the fingertip starts from the point (x1, y1) represented by the position data input from the driver IC 151 to the drive control device 300, and the end point (x2, y1) after the required time Δt has elapsed. It can be obtained as the velocity of the vector y2).

  The memory 250 stores data that associates data representing the type of application, GUI button image data, first area data, second area data, and vibration patterns.

  In addition, the memory 250 stores data and programs necessary for the application processor 220 to execute an application, data and programs necessary for the communication processor 230 for communication processing, and the like.

  The sine wave generator 310 generates a sine wave necessary for generating a drive signal for vibrating the top panel 120 at a natural frequency. For example, when the top panel 120 is vibrated at a natural frequency f of 33.5 [kHz], the frequency of the sine wave is 33.5 [kHz]. The sine wave generator 310 inputs an ultrasonic band sine wave signal to the amplitude modulator 320.

  The amplitude modulator 320 generates a drive signal by modulating the amplitude of the sine wave signal input from the sine wave generator 310 using the amplitude data input from the drive control unit 240. The amplitude modulator 320 modulates only the amplitude of the sine wave signal in the ultrasonic band input from the sine wave generator 310, and generates the drive signal without modulating the frequency and phase.

  Therefore, the drive signal output from the amplitude modulator 320 is an ultrasonic band sine wave signal obtained by modulating only the amplitude of the ultrasonic band sine wave signal input from the sine wave generator 310. Note that when the amplitude data is zero, the amplitude of the drive signal is zero. This is equivalent to the amplitude modulator 320 not outputting a drive signal.

  Here, problems in the input operation will be described with reference to FIGS.

  FIG. 7 is a diagram illustrating a mail input screen of the electronic device 100. FIG. 9 is an enlarged view of a part of the input unit shown in FIG. Here, a case where the vibration element 140 is not driven will be described for comparison, and actions and effects obtained by driving the vibration element 140 will be described later.

  In FIG. 7, in the operation mode for editing an electronic mail, the user's fingertip touches the GUI button for selecting “J”, “K”, “L”, “5”, or “&” and “J”. GUI buttons 162, 163, 164, and 165 for selecting "K", "L", "5", or "&" are displayed on the four sides of the GUI button 161 for selecting. The GUI button 161 is an example of a first input unit. Each of the GUI buttons 162, 163, 164, 165 is an example of a second input unit.

  When no operation input is performed on the GUI button 161, the GUI button 161 displays “J”, “K”, “L”, “5”, and “&”. This is the same as the GUI button 169A for inputting “P”, “Q”, “R”, “S”, or “7”.

  For example, when a flick operation is performed in the direction of the GUI button 163 from a state in which the fingertip is touched on the GUI button 161, “L” can be input.

  Here, such a GUI button is referred to as an expandable GUI button. The unfoldable GUI button refers to a GUI button in which, when an operation input is performed (touched with a fingertip), the GUI button expands, and other GUI buttons are arranged around the touched GUI button.

  Such an unfoldable GUI button is used, for example, when inputting symbols. The symbol is a generic name including letters, numbers, pictograms, emoticons, and other symbols. The characters are characters used for writing hiragana, katakana, kanji, alphabets, and other languages.

  FIG. 8 is a diagram illustrating a region where input to the GUI buttons 162 to 165 is accepted.

  In FIG. 8, when the fingertip is moved outside the GUI button 161 from the state in which the top panel 120 is touched with the fingertip (operation input is performed) within the display area of the GUI button 161, the GUI buttons 162 to 165 are displayed. Indicates the expanded state.

  Areas 162α, 163α, 164α, and 165α represent ranges in which operation inputs to the GUI buttons 162 to 165 are accepted (recognized), respectively. The areas 162α, 163α, 164α, and 165α are trapezoidal areas that are defined so as to spread evenly around the GUI button 161.

  When the fingertip is located in the areas 162α to 165α, when the fingertip is released from the top panel 120, the input to the GUI buttons 162 to 165 is completed.

  Note that the area where the input to the GUI button 161 is accepted is substantially the same as the display area of the GUI button 161, and is an area surrounded by the areas 162α to 165α without overlapping the areas 162α to 165α.

  Next, referring to FIG. 9, from the state where the fingertip is touched to the GUI button 161, the fingertip is moved in the direction of the GUI button 163 to input “L”, and then the fingertip is further moved in the direction of the GUI button 162. Consider the case of moving.

  Trajectories (1) and (2) shown in FIG. 9 indicate the trajectory of the fingertip. Of the trajectories (1) and (2), a solid line section indicates a section where the fingertip moves while touching the top panel 120, and a broken line section indicates a section where the fingertip moves without touching the top panel 120. The trajectories (1) and (2) are GUIs for inputting “P”, “Q”, “R”, “S”, or “7” after operating the GUI button 161 to input “L”. This represents a trajectory for moving the fingertip to operate the button 169A.

  A boundary A indicated by an alternate long and short dash line indicates a boundary between an area where the touch panel 150 detects an input to the GUI button 162 and an area where the input to the GUI button 163 is detected. That is, the boundary A is a boundary between the regions 162α and 163α shown in FIG.

  When the top panel 120 is touched in a region closer to the GUI button 162 than the boundary A, an input operation of “K” is performed. When the top panel 120 is touched in a region closer to the GUI button 163 than the boundary A, an input operation of “L” is performed.

  The trajectory (1) is located before the boundary A when the fingertip is moved in the direction of the GUI button 163 from the state in which the fingertip is touched on the GUI button 161 and then moved in the direction of the GUI button 162 ( Indicates that the fingertip is separated from the top panel 120 (on the GUI button 162 side). When an operation input is performed as in the locus (1), “L” can be input.

  In addition, the locus (2) crosses the boundary A when the fingertip is moved in the direction of the GUI button 162 from the state in which the fingertip is touched to the GUI button 161 and then moved in the direction of the GUI button 162. Indicates that the fingertip is separated from the top panel 120.

  That is, when an operation input is performed as in the locus (2), “L” cannot be input and “K” is erroneously input.

  If the flick operation is performed quickly, the position at which the fingertip is moved away from the top panel 120 may be shifted. There is a possibility that it is separated from the top panel 120, "L" cannot be input, and "K" is input by mistake.

  Such an input mistake is particularly likely to occur when an operation input is performed by quickly moving the fingertip, or when an operation input is performed while holding the electronic device 100 with one hand.

  Hereinafter, in such a case, a description will be given of a mode in which input mistakes are reduced by driving the vibration element 140 to cause the top panel 120 to generate a natural vibration of an ultrasonic band.

  FIG. 10 is a diagram illustrating a positional relationship between a region where vibration is generated, a region where vibration is not generated, and boundaries between input regions of the GUI buttons 162 to 165.

  FIG. 10 shows regions 161R, 162R, 163R, 164R, 165R, regions 166R, 167R, 168R, 169R, and boundaries A, B, C, and D. The regions 161R to 169R are nine regions arranged in a 3 × 3 matrix.

  The regions 161R to 165R are regions in which the drive control unit 240 drives the vibration element 140 to generate the natural vibration of the ultrasonic band on the top panel 120 when the position of the operation input moves in these regions. The region 161R is an example of a first region. Each of the regions 162R to 165R is an example of a second region.

  The regions 166R to 169R are regions in which the drive control unit 240 does not drive the vibration element 140 even if the position of the operation input moves in these regions.

  The coordinates of the regions 161R to 165R are represented by coordinates in the coordinate system of the touch panel 150. The positions of the areas 161R to 165R coincide with the positions where the GUI buttons 161 to 165 (see FIGS. 7 and 9) are displayed on the display panel 160 in plan view.

  The regions 166R to 169R are four regions obtained by removing the regions 161R to 165R from nine regions arranged in a matrix of 3 rows × 3 columns. The coordinates of the areas 166R to 169R are represented by coordinates in the coordinate system of the touch panel 150.

  Here, the region 166R can be regarded as a boundary between the region 162R and the region 163R. For example, when the position of the operation input moves from the region 163R to the region 163R through the region 166R as in the locus (1) illustrated in FIG. 9, the region 166R becomes a boundary between the region 162R and the region 163R. The same applies to the regions 167R to 169R.

  The boundary A is the same as the boundary A shown in FIG. 9, and indicates the boundary between the area 162α in which the touch panel 150 detects an input to the GUI button 162 and the area 163α in which an input to the GUI button 163 is detected.

  A boundary B indicates a boundary between an area 163α in which the touch panel 150 detects an input to the GUI button 163 and an area 164α in which an input to the GUI button 164 is detected.

  A boundary C indicates a boundary between an area 164α in which the touch panel 150 detects an input to the GUI button 164 and an area 165α in which an input to the GUI button 165 is detected.

  A boundary D indicates a boundary between an area 165α in which the touch panel 150 detects an input to the GUI button 165 and an area 162α in which an input to the GUI button 162 is detected.

  The drive control unit 240 drives the vibration element 140 when the position of the operation input is in any of the regions 161R to 165R and the position of the operation input is moving, and the top panel In 120, the natural vibration of the ultrasonic band is generated.

  Further, when the position of the operation input is in any one of the regions 166R to 169R, the drive control unit 240 does not drive the vibration element 140 even if the position of the operation input moves. For this reason, the natural vibration of the ultrasonic band does not occur in the top panel 120.

  As described above, when the natural vibration of the ultrasonic band is generated on the top panel 120, the frictional force applied to the user's fingertip is reduced by the squeeze effect. Further, when the natural vibration of the ultrasonic band is not generated on the top panel 120, the squeeze effect cannot be obtained, so that the frictional force applied to the user's fingertip increases.

  That is, when the position of the operation input is in any one of the regions 161R to 165R and when it is in any one of the regions 166R to 169R, the user moves the fingertip. Feeling is different.

  Therefore, when the user moves the fingertip, the user can determine whether or not the position of the fingertip is in any one of the regions 161R to 165R with the tactile sensation of the fingertip.

  Note that, here, the sizes of the regions 166R to 169R are shown to be equal to the regions 161R to 165R, but the regions 166R to 169R may further extend outward.

  FIG. 11 is a diagram illustrating data in which an application ID (Identification), image data, first area data, second area data, and a vibration pattern are associated with each other.

  The application ID is data representing the type of application, and ID_3 is shown in FIG. The image data is data representing the image data of the GUI component displayed on the display panel 160 and the position where the image is displayed. Here, as an example, data image-161 to image_165 representing images of GUI buttons 161 to 165 (see FIGS. 7 and 9) and positions where the images are displayed are shown.

  The first area data is data representing an area for accepting input to the GUI component, for example, data representing an area for accepting input to the GUI buttons 161 to 165. The areas for receiving inputs to the GUI buttons 161 to 165 are represented by input_area_161 to input_area_165, respectively. input_area_161 represents the coordinates of the area where the GUI button 161 is displayed. input_area_162 to input_area_165 represent the coordinates of the areas 162α to 165α shown in FIG.

  The second area data is data representing an area for setting the presence or absence of vibration. In FIG. 11, vib_area_161R to vib_area_169R are shown as an example of the second area data. vib_area_161R to vib_area_169R indicate the coordinates of the areas 161R to 169R shown in FIG.

  The vibration pattern indicates a natural vibration pattern of the ultrasonic band in each area data. The vibration pattern P1 is assigned to the regions 161R to 165R. The vibration pattern P1 is, for example, a vibration pattern that causes the top panel 120 to generate natural vibration of an ultrasonic band having a certain amplitude.

  In addition, a vibration pattern for turning off the vibration is assigned to the regions 161R to 169R. The vibration pattern for turning off the vibration is a vibration pattern for making the amplitude of the natural vibration of the ultrasonic band zero.

  FIG. 12 is a flowchart illustrating processing executed by the drive control unit 240 of the electronic device 100 according to the embodiment.

  An OS (Operating System) of the electronic device 100 executes control for driving the electronic device 100 every predetermined control cycle. For this reason, the drive control part 240 performs a calculation for every predetermined control period, and repeatedly performs the flow shown in FIG. 11 for every predetermined control period.

  The drive control unit 240 starts processing when the power of the electronic device 100 is turned on (start).

  The drive control unit 240 determines whether or not there has been an operation on the unfoldable GUI button (step S1). The process of step S1 is repeatedly executed until it is determined that an unfoldable GUI button has been operated (S1: YES).

  If the drive control unit 240 determines that the operation of the unfoldable GUI button has been performed (S1: YES), the drive control unit 240 determines whether or not the operation input continues (step S2). Whether or not the operation input is continued may be determined based on whether or not position data is input from the driver IC 151 (see FIG. 6).

  When it is determined that the operation input continues (S2: YES), the drive control unit 240 determines whether the coordinates of the operation input are included in any of the regions 166R to 169R (step S3). In step S3, it is determined whether or not the region 166R to 169R does not drive the vibration element 140.

  When determining that the coordinates of the operation input are not included in the areas 166R to 169R (S3: NO), the drive control unit 240 determines whether the vibration element 140 is driven (step S4).

  If it determines with the drive control part 240 not driving the vibration element 140 (S4: NO), the drive of the vibration element 140 will be started (step S5). As a result, the natural vibration of the ultrasonic band due to the predetermined vibration pattern is generated on the top panel 120. For example, when the position of the operation input is in the GUI button 161 (see FIGS. 7 and 9), the vibration element 140 is driven with the vibration pattern P1 based on the data shown in FIG.

  Since the vibration pattern P1 is a vibration pattern that drives the vibration element 140 with a predetermined constant amplitude, the user's fingertip is provided with a tactile sensation that is easy to slip due to the squeeze effect.

  The drive control part 240 returns a flow to step S2, after finishing the process of step S5.

  Moreover, also when it determines with the drive control part 240 driving the vibration element 140 by step S4 (S4: YES), a flow is returned to step S2.

  If the drive control unit 240 determines in step S3 that the coordinates of the operation input are included in the regions 166R to 169R (S3: YES), the drive control unit 240 determines whether the vibration element 140 is driven (step S6).

  If it determines with the drive control part 240 driving the vibration element 140 (S6: YES), the drive of the vibration element 140 will be stopped (step S7). As a result, the vibration is turned off from the state in which the natural vibration of the ultrasonic band is generated in the top panel 120.

  When the coordinates of the operation input are included in the regions 166R to 169R, the natural vibration of the ultrasonic band is turned off without driving the vibration element 140.

  For example, when the position of the operation input is not in any of the GUI buttons 161 to 165 (see FIGS. 7 and 9), the vibration element 140 is not driven, and the frictional force applied to the fingertip of the user increases. . Thereby, the user can recognize that the fingertip is detached from the GUI buttons 161 to 165 only with the tactile sensation.

  The drive control part 240 returns a flow to step S2, after finishing the process of step S7.

  Moreover, if the drive control part 240 determines with the vibration element 140 not being driven (S6: NO), a flow will be returned to step S2.

  If it determines with the operation input not continuing in step S2 (S2: NO), the drive control part 240 will determine whether the vibration element 140 is driven (step S8).

  If it determines with the drive control part 240 driving the vibration element 140 (S8: YES), the drive of the vibration element 140 will be stopped (step S9). As a result, the vibration is turned off from the state in which the natural vibration of the ultrasonic band is generated in the top panel 120.

  This is to turn off the natural vibration of the ultrasonic band without driving the vibration element 140 when the operation input is not continuously performed.

  The drive control part 240 complete | finishes a series of processes, after finishing the process of step S9 (end).

  Also, the drive control unit 240 ends the series of processes (end) even when it is determined that the vibration element 140 is not driven (S8: NO).

  The case where the flow is completed via step S8 or S9 is a case where the input content by the operation input is confirmed or the user cancels the input halfway. In such a case, the flow ends.

  Here, referring to FIG. 13, when a flick operation is performed from the GUI button 161 toward the GUI button 163, the drive signal output from the amplitude modulator 320 based on the amplitude data output from the drive control unit 240 is used. The vibration generated in the top panel 120 will be described.

  FIG. 13 is a diagram illustrating an example of a temporal change in the amplitude of the natural vibration of the ultrasonic band generated in the top panel 120. In FIG. 13, the horizontal axis represents the time axis, and the vertical axis represents the amplitude value of the amplitude data.

  It is assumed that the user touches the GUI button 161 on the top panel 120 at time t1 and starts moving toward the GUI button 163 at time t2. At time t2, the natural vibration of the ultrasonic band with the amplitude A11 is generated in the top panel 120.

  At time t3, the fingertip position (operation input position) enters the GUI button 163, and the drive control unit 240 continues to generate the natural vibration of the ultrasonic band having the amplitude A11.

  At time t4, when the user's fingertip moves out of the display area of the GUI button 163 and enters the area 166R, the drive control unit 240 turns off the vibration element 140, and the top panel 120 generates the natural vibration of the ultrasonic band. No longer.

  In this way, while the user performs a flick operation from the GUI button 161 toward the GUI button 163, the drive control unit 240 outputs amplitude data having a constant value (A11). For this reason, while the user is performing the flick operation, the dynamic friction force applied to the fingertip of the user is reduced, and it is possible to provide the user with a feeling that the fingertip slips. Can be detected with the fingertip.

  Further, when the user's fingertip is released from the GUI button 163 and enters the area 166R, the drive control unit 240 outputs amplitude data having an amplitude of zero. For this reason, the dynamic frictional force applied to the user's fingertip is increased, and it is possible to provide a sensation of touching the convex portion to the user's fingertip.

  As a result, the user can determine from the tactile sensation of the fingertip that the position of the fingertip performing the flick operation has deviated from the GUI button 163, and can release the fingertip from the top panel 120 at that time.

  As described above, according to the embodiment, when the position of the operation input is included in any of the regions 161R to 165R, the vibration element 140 is driven to cause the top panel 120 to generate the natural vibration of the ultrasonic band.

  Further, when the position of the operation input is not included in any of the regions 161R to 165R, the vibration element 140 is turned off, so that the natural vibration of the ultrasonic band does not occur in the top panel 120.

  For this reason, the user can determine whether or not the position of the fingertip is within the display area of the GUI buttons 161 to 165 only with the tactile sensation obtained with the fingertip.

  Therefore, the burden of visually determining whether the GUI buttons 161 to 165 are inside or outside is reduced.

  Further, it is possible to more accurately determine whether the position of the fingertip is inside or outside the GUI buttons 161 to 165, and input errors can be reduced.

  As described above, it is possible to provide the drive control device 300 and the electronic device 100 that support accurate input.

  The speed at which human vision is updated is said to be equivalent to about 30 fps (frame per second). On the other hand, the speed at which humans can detect changes in tactile sensation is said to be about several milliseconds.

  For this reason, compared with the conventional case where the positional relationship between the fingertip and the GUI button is determined only by vision, the user who uses the electronic device 100 according to the embodiment is approximately 1/100 times faster than the GUI. Whether the button 161 to 165 is inside or outside can be determined more accurately.

  In the above description, the form in which the natural vibration of the ultrasonic band is generated in order to vibrate the top panel 120 has been described. However, the vibration generated in the top panel 120 is not limited to the ultrasonic band but is in the audible range. May be. Moreover, it may not be a natural vibration.

  Further, the description has been given above using the expandable GUI button. However, if a plurality of GUI buttons are arranged, the expandable GUI button may not be used.

  Next, a modification of the embodiment will be described with reference to FIGS.

  14 to 23 are diagrams showing modifications of the embodiment.

  The GUI buttons 162A to 165A arranged around the GUI button 161 shown in FIG. 14 are trapezoidal. The display areas of the GUI buttons 162A to 165A coincide with the areas 162α to 165α (see FIG. 8) in which the touch panel 150 determines whether or not there is an operation input to the GUI buttons 162 to 165 shown in FIGS. Such GUI buttons 162A to 165A may be used.

  Regions 162R1 to 165R1 shown in FIG. 15 are expanded as compared with regions 162R to 165R shown in FIG. The regions 162R to 165R are each square, whereas the regions 162R1 to 165R1 are trapezoidal on the outside.

  Accordingly, the regions 166R1 to 169R1 are narrower than the regions 166R to 169R shown in FIG.

  In FIG. 15, regions 161R and 162R1 to 165R1 that generate the natural vibration of the ultrasonic band when the user touches and moves the top panel 120 are outlined, and the user places the fingertip on the top panel 120. The regions 166R1 to 169R1 that do not generate the natural vibration of the ultrasonic band when touched and moved are indicated by hatching.

  The display area of the GUI buttons 161 to 165 is the same as that shown in FIGS.

  For this reason, when the user moves the fingertip while touching the top panel 120 in the areas 162R1 to 165R1 shown in FIG. 15, the vibration element 140 is driven, and the top panel 120 generates the natural vibration of the ultrasonic band. . Further, when the fingertip is moved while touching the top panel 120 in the regions 162R to 165R, the vibration element 140 is not driven, and thus the natural vibration of the ultrasonic band is not generated in the top panel 120.

  Using such regions 162R1 to 165R1 and regions 166R1 to 169R1, whether or not the natural vibration of the ultrasonic band in the top panel 120 is generated may be set.

  In the areas 162R2 to 165R2 shown in FIG. 16, the areas 162R1 to 165R1 shown in FIG. 15 are slightly narrowed so as to provide areas that do not generate the natural vibration of the ultrasonic band between the areas 161R.

  In FIG. 16, regions 161 R and 162 R 2 to 165 R 2 that generate the natural vibration of the ultrasonic band when the user touches and moves the top panel 120 are outlined, and the user places the fingertip on the top panel 120. A region where the natural vibration of the ultrasonic band is not generated when touched and moved is indicated by hatching.

  Using such regions 162R2 to 165R2, whether or not the natural vibration of the ultrasonic band in the top panel 120 is generated may be set.

  Alternatively, a region 162R3 illustrated in FIG. 17 may be used. The region 162R3 is obtained by expanding the region 162R illustrated in FIG. In this case, the region 166R3 corresponding to the region 166R shown in FIG. 10 is narrowed by the amount of the region 162R3 expanded.

  For example, when the position of the operation input moves from “L” to “K” as indicated by an arrow in FIG. 17, the area 162R shown in FIG. 10 may be changed to the area 162R3 shown in FIG.

  Such a region 162R3 can be used in the following cases, for example.

  First, a case where no input mistake occurs will be described. The user who wants to input “L” moves his fingertip from “J” to “L” as shown in the locus (3) of FIG. When the fingertip is separated from the top panel 120, the natural vibration of the ultrasonic band is switched from on to off when the position of the operation input enters the region 166R3 from the region 163R.

  Next, a case where an input error occurs will be described. The user who wants to input "L" moves his fingertip from "J" to "L" as shown in the locus (4) in FIG. Suppose that the fingertip is moved into the area 162R3.

  In this case, when the position of the operation input enters the region 166R3 from the region 163R and the natural vibration of the ultrasonic band is switched from on to off and then enters the region 162R3 beyond the boundary A, the natural vibration of the ultrasonic band Switches from off to on, and the tactile sensation that the user feels with the fingertips changes.

  For this reason, the user can recognize with the tactile sensation that the boundary A has been exceeded, and can recognize with the tactile sensation that the user has erroneously input “K” while inputting “L”.

  Similarly, a region 163R4 illustrated in FIG. 19 may be used. The region 163R4 is obtained by expanding the region 163R illustrated in FIG. In this case, the region 166R4 corresponding to the region 166R shown in FIG. 10 is narrowed by the amount of the region 163R4 expanded.

  For example, the region 163R shown in FIG. 10 may be changed to the region 163R4 shown in FIG. 19 when the position of the operation input moves from “K” to “L” as shown by an arrow in FIG.

  Further, when the drive control unit 240 performs drive control of the vibration element 140 using the regions 161R to 165R and the regions 165R to 169R illustrated in FIG. 10, when the position of the operation input further reaches the boundaries A to D In addition, the vibration element 140 may be driven.

  Here, as an example, a case will be described in which the top panel 120 is traced with the fingertip from the region 163R (“L” position) illustrated in FIG. 10 through the region 166R to the region 162R (“K” position).

  For example, as shown in FIG. 20, when the fingertip is moved on the surface of the top panel 120 at the position “L” at time t <b> 11, the drive control unit 240 causes the natural vibration of the ultrasonic band of amplitude A <b> 11 to the top panel 120. generate.

  In addition, when the fingertip enters the region 166R from the region 163R at time t12, the drive control unit 240 turns off the vibration element 140, so that the amplitude of vibration generated in the top panel 120 becomes zero.

  When the user further moves the fingertip toward the position “K” and reaches the boundary A at time t13, the drive control unit 240 causes the top panel 120 to generate the natural vibration of the ultrasonic band having the amplitude A11. Thereby, the user can recognize that the boundary A has been reached by the tactile sensation of the fingertip.

  When the user further moves the fingertip toward the position “K” and crosses the boundary A at time t14, the drive control unit 240 turns off the vibration element 140, and therefore the amplitude of vibration generated in the top panel 120 Becomes zero.

  When the user further moves the fingertip toward the “K” position and enters the region 162R (“K” position) at time t15, the drive control unit 240 takes the natural vibration of the ultrasonic band of amplitude A11 to the top. Generated on panel 120. As a result, the user can recognize that the position “K” has been reached by the tactile sensation of the fingertip.

  As described above, when the boundary A is reached, the vibration element 140 is turned on so that the natural vibration of the ultrasonic band is generated in the top panel 120 so that the position of the boundary A is conveyed to the user by tactile sensation. Good.

  In order to turn on the vibration element 140 and generate the natural vibration of the ultrasonic band in the top panel 120 when the position of the operation input reaches the boundary A, for example, the boundary 166R in the region 166R shown in FIG. A narrow region along A may be assigned as a region for driving the vibration element 140, similarly to the regions 162R to 165R.

  In addition, the right-handed person and the left-handed person may have different trajectories such as a flick operation. For this reason, for example, when the user is right-handed, the region 163R shown in FIG. 10 may be biased to the left as in the region 163R5 shown in FIG.

  When the user is left-handed, the area 163R shown in FIG. 10 may be biased to the right as in the area 163R6 shown in FIG.

  Here, an explanation has been given of a mode in which the region 163R5 biased to the left is used when the user is right-handed and the region 163R6 biased to the right is used when left-handed, but the region is adjusted to either the left or right It may be in the opposite direction to the above, and various methods are conceivable.

  The regions 161R to 165R (see FIG. 10) may be asymmetrical so that right-handed users and left-handed users can use each of them easily.

  FIG. 23 shows an upward flick as shown by an arrow in order to select “L” from the state where the user's fingertip touches the alphabet “J” at the position C11 in the operation mode for editing the e-mail. Indicates the state of operation. FIG. 23 shows GUI buttons 161A to 169A.

  In FIG. 23, “J”, “K”, “L” are placed on the Y axis positive direction side of the GUI button 163A for inputting “A”, “B”, “C”, “2”, “#”. A circular sub display area 190 indicating which one of “5” and “&” is selected is displayed. In the sub display area 190, “L” selected by the flick operation is highlighted.

  Even when such a sub display area 190 is displayed, input errors can be suppressed by the same method as described above.

  The drive control device, the electronic device, the drive control program, and the drive control method according to the exemplary embodiments of the present invention have been described above, but the present invention is limited to the specifically disclosed embodiments. Rather, various modifications and changes can be made without departing from the scope of the claims.

DESCRIPTION OF SYMBOLS 100 Electronic device 110 Case 120 Top panel 130 Double-sided tape 140 Vibration element 150 Touch panel 160 Display panel 170 Board | substrate 200 Control part 220 Application processor 230 Communication processor 240 Drive control part 250 Memory 300 Drive control apparatus 310 Sine wave generator 320 Amplitude modulator

Claims (10)

A display unit, a top panel disposed on a display surface side of the display unit and having an operation surface, a position detection unit for detecting a position of an operation input performed on the operation surface, and generating vibration on the operation surface A drive control device for driving the vibration element of an electronic device including the vibration element,
A symbol input unit displayed on the display unit and used for inputting a symbol, the first input unit used for inputting a first symbol, and a plurality of different first displays displayed around the first input unit. Image data representing an image of a symbol input unit having a plurality of second input units used for inputting two symbols, a first region corresponding to a display region of the first input unit, and the plurality of second input units A storage unit for storing area data representing positions with a plurality of second areas corresponding to the display area;
A drive control unit that drives the vibration element with a drive signal that generates a natural vibration of an ultrasonic band on the operation surface, wherein the position of the operation input is moved outside the first region and the plurality of second regions. Or a drive control unit that drives the vibration element with a first vibration pattern so that the intensity of the natural vibration changes when the boundary between the second regions is reached,
The first area is equal to the first display area of the first input unit, or includes the first display area and is larger than the first display area,
Each of the plurality of second areas is equal to the plurality of second display areas of the plurality of second input units, or includes the plurality of second display areas and is larger than the plurality of second display areas. der is,
The area data is provided between the second areas corresponding to the second display areas of the adjacent second input sections, in addition to the positions of the first area and the plurality of second areas, It is data representing the position of the third region that does not drive the element,
When the position of the operation input moves from one of the adjacent second input units to the other, a second region corresponding to the other second input unit expands to the third region side, and the second The drive control device , wherein the third region is narrowed by the extent of the region .   The drive control device according to claim 1, wherein the plurality of second input units are displayed on the display unit when the position detection unit detects the operation input in the first input unit.   The drive control device according to claim 1, wherein the plurality of second regions are adjacent to each other around the first region.   The drive control unit has a second vibration pattern so that the natural vibration intensity changes when the position of the operation input enters the second region beyond the boundary from the second region. The drive control apparatus according to claim 1, wherein the drive element is driven.   The drive control unit drives the vibration element with a third vibration pattern so that the intensity of the natural vibration changes when the position of the operation input reaches a boundary between the first region and the second region. The drive control apparatus as described in any one of Claims 1 thru | or 4. 6. The drive control device according to claim 1, wherein the drive control unit drives the vibration element so that an intensity of the natural vibration is changed by controlling an amplitude of the drive signal . 7.   The drive control device according to claim 1, wherein the natural vibration is natural vibration of the top panel. A display unit;
A top panel disposed on the display surface side of the display unit and having an operation surface;
A position detection unit for detecting a position of an operation input performed on the operation surface;
A vibration element for generating vibration on the operation surface;
A symbol input unit displayed on the display unit and used for inputting a symbol, the first input unit used for inputting a first symbol, and a plurality of different first displays displayed around the first input unit. Image data representing an image of a symbol input unit having a plurality of second input units used for inputting two symbols, a first region corresponding to a display region of the first input unit, and the plurality of second input units A storage unit for storing area data representing positions with a plurality of second areas corresponding to the display area;
A drive control unit that drives the vibration element with a drive signal that generates a natural vibration of an ultrasonic band on the operation surface, wherein the position of the operation input is moved outside the first region and the plurality of second regions. Or a drive control unit that drives the vibration element with a first vibration pattern so that the intensity of the natural vibration changes when the boundary between the second regions is reached,
The first area is equal to the first display area of the first input unit, or includes the first display area and is larger than the first display area,
Each of the plurality of second areas is equal to the plurality of second display areas of the plurality of second input units, or includes the plurality of second display areas and is larger than the plurality of second display areas. der is,
The area data is provided between the second areas corresponding to the second display areas of the adjacent second input sections, in addition to the positions of the first area and the plurality of second areas, It is data representing the position of the third region that does not drive the element,
When the position of the operation input moves from one of the adjacent second input units to the other, a second region corresponding to the other second input unit expands to the third region side, and the second An electronic apparatus in which the third region is narrowed by the amount of the region that has been expanded . A display unit, a top panel disposed on a display surface side of the display unit and having an operation surface, a position detection unit for detecting a position of an operation input performed on the operation surface, and generating vibration on the operation surface A drive control program for driving the vibration element of an electronic device including the vibration element,
A symbol input unit displayed on the display unit and used for inputting a symbol, the first input unit used for inputting a first symbol, and a plurality of different first displays displayed around the first input unit. Image data representing an image of a symbol input unit having a plurality of second input units used for inputting two symbols, a first region corresponding to a display region of the first input unit, and the plurality of second input units A computer having a storage unit for storing area data representing positions with a plurality of second areas corresponding to the display area of
Driving the vibration element with a drive signal that generates a natural vibration of an ultrasonic band on the operation surface, and when the position of the operation input moves outside the first region and the plurality of second regions, Alternatively, when the boundary between the second regions is reached, the vibration element is driven with the first vibration pattern so that the intensity of the natural vibration changes,
The first area is equal to the first display area of the first input unit, or includes the first display area and is larger than the first display area,
Each of the plurality of second areas is equal to the plurality of second display areas of the plurality of second input units, or includes the plurality of second display areas and is larger than the plurality of second display areas. der is,
The area data is provided between the second areas corresponding to the second display areas of the adjacent second input sections, in addition to the positions of the first area and the plurality of second areas, It is data representing the position of the third region that does not drive the element,
When the position of the operation input moves from one of the adjacent second input units to the other, a second region corresponding to the other second input unit expands to the third region side, and the second A drive control program in which the third region is narrowed by the extent of the region . A display unit, a top panel disposed on a display surface side of the display unit and having an operation surface, a position detection unit for detecting a position of an operation input performed on the operation surface, and generating vibration on the operation surface A drive control method for driving the vibration element of an electronic device including the vibration element,
A symbol input unit displayed on the display unit and used for inputting a symbol, the first input unit used for inputting a first symbol, and a plurality of different first displays displayed around the first input unit. Image data representing an image of a symbol input unit having a plurality of second input units used for inputting two symbols, a first region corresponding to a display region of the first input unit, and the plurality of second input units A computer having a storage unit that stores area data representing positions with a plurality of second areas corresponding to the display area of
When the position of the operation input moves outside the first region and the plurality of second regions when driving the vibration element with a drive signal that generates a natural vibration of an ultrasonic band on the operation surface, or When the boundary between the second regions is reached, the vibration element is driven with the first vibration pattern so that the intensity of the natural vibration changes,
The first area is equal to the first display area of the first input unit, or includes the first display area and is larger than the first display area,
Each of the plurality of second areas is equal to the plurality of second display areas of the plurality of second input units, or includes the plurality of second display areas and is larger than the plurality of second display areas. der is,
The area data is provided between the second areas corresponding to the second display areas of the adjacent second input sections, in addition to the positions of the first area and the plurality of second areas, It is data representing the position of the third region that does not drive the element,
When the position of the operation input moves from one of the adjacent second input units to the other, a second region corresponding to the other second input unit expands to the third region side, and the second The drive control method , wherein the third region is narrowed by the extent of the region .

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