JP7054794B2 - Input device - Google Patents

Description

The present disclosure relates to an input device that presents a tactile sensation in response to an input from a touch sensor.

Patent Document 1 discloses a tactile presentation device that realizes a tactile presentation reminiscent of a feeling of pulling a finger into a target.

Japanese Unexamined Patent Publication No. 2017-130021

However, the technique described in Patent Document 1 has a problem that it is difficult to input to the touch sensor as intended by the user.

Therefore, the present disclosure provides an input device capable of easily inputting to the touch sensor as intended by the user.

The input device according to one aspect of the present disclosure includes a touch sensor that detects a touch position on the operation surface by the operating body, a vibration element that presents a tactile sensation to the operation surface by driving in an ultrasonic band, and the touch sensor. A control unit electrically connected to the vibrating element and a load sensor provided on the touch sensor to detect a touch load on the touch sensor are provided, and the control unit is a first unit in a predetermined direction. The input to the touch sensor by the gesture is accepted as the first input, and the second gesture having a second length shorter than the first length of the first gesture in the predetermined direction from the initial position of the first gesture is described. When the touch sensor receives it, the driving of the vibrating element is started, and the third length is longer than the second length and shorter than the first length in the predetermined direction from the initial position. When the touch sensor receives the 3 gestures, the driving of the vibrating element is stopped , and the input by the 4th gesture having a 4th length exceeding the 1st length from the initial position in the predetermined direction is input. In addition to accepting it as a second input different from the first input, (i) further, the moving speed of the operating body in the second gesture is calculated using the change in the touch position per unit time detected by the touch sensor. (Ii) In driving the vibrating element, the faster the calculated movement speed is, the smaller the driving voltage is, and the smaller the touch load obtained from the load sensor in the second gesture is, the smaller the driving voltage is. When driving the vibrating element, the first ratio to the reference drive voltage is calculated using the first relation in which the drive voltage applied to the vibrating element decreases at a constant decrease rate with respect to the increase in the moving speed. Using the third relationship in which the drive voltage decreases at a constant rate of decrease with respect to the decrease in the touch load, a third ratio to the reference drive voltage is calculated, and the reference drive voltage is added to the first. The drive voltage is determined by multiplying the ratio and the third ratio, and the drive voltage corresponds to the moving speed in the first relationship and corresponds to the touch load in the third relationship. Drives the vibrating element .
Further, the input device according to one aspect of the present disclosure includes a touch sensor that detects a touch position on the operation surface by the operating body, a vibration element that presents a tactile sensation to the operation surface by driving in an ultrasonic band, and the above-mentioned. A control unit electrically connected to the touch sensor and the vibration element, and a load sensor provided on the touch sensor to detect a touch load on the touch sensor are provided, and the control unit is provided in a predetermined direction. The input to the touch sensor by the first gesture is accepted as the first input, and the second gesture having a second length shorter than the first length of the first gesture in the predetermined direction from the initial position of the first gesture. Is received by the touch sensor, the driving of the vibrating element is started, and a third length longer than the second length and shorter than the first length in the predetermined direction from the initial position. When the touch sensor receives the third gesture, the driving of the vibrating element is stopped, and the input by the fourth gesture having a fourth length exceeding the first length is input from the initial position in the predetermined direction. In addition to accepting it as a second input different from the first input, (i) further, the movement speed of the operating body in the second gesture is measured by using the change in the touch position per unit time detected by the touch sensor. (Ii) In driving the vibrating element, the faster the calculated movement speed is, the smaller the driving voltage is, and the smaller the touch load obtained from the load sensor in the second gesture is, the smaller the driving voltage is. Using the second relationship, the driving voltage applied to the vibrating element decreases at a decreasing rate as the moving speed increases when the vibrating element is driven. A second ratio to the reference drive voltage is calculated, and a fourth relationship is established in which the drive voltage applied to the vibrating element decreases at a reduction rate that becomes smaller with respect to the decrease in the touch load as the touch load decreases. The fourth ratio to the reference drive voltage is calculated using the reference drive voltage, and the second ratio and the fourth ratio are multiplied to determine the drive voltage, and in the second relationship. The vibrating element is driven by a drive voltage corresponding to the moving speed and corresponding to the touch load in the fourth relationship.

It should be noted that these general or specific embodiments may be realized in a recording medium such as a system, method, integrated circuit, computer program or computer readable CD-ROM, and the system, method, integrated circuit, computer program. And may be realized by any combination of recording media.

The input device of the present disclosure can easily input to the touch sensor as intended by the user.

FIG. 1 is a diagram showing an example of a configuration of an input device according to an embodiment and a vehicle interior of a vehicle in which the input device is arranged. FIG. 2 is an external front view of the touchpad when viewed from above. FIG. 3 is a block diagram showing an example of a functional configuration of an input device mounted on an automobile according to an embodiment. FIG. 4 is a diagram showing an example of a GUI and a touch pad displayed on a display. FIG. 5 is a diagram for explaining an example of an input method to the GUI. FIG. 6 is a diagram for explaining an example of an input method to the GUI. FIG. 7 is a diagram for explaining the first gesture. FIG. 8 is a diagram for explaining drive control of the vibrating element when the first gesture is input. FIG. 9 is an example of a graph showing the first relationship between the drive voltage applied to the vibrating element and the tracing speed immediately before driving the vibrating element. FIG. 10 is an example of a graph showing the second relationship between the drive voltage applied to the vibrating element and the tracing speed immediately before driving the vibrating element. FIG. 11 is a flowchart showing an example of the operation in the input device according to the embodiment. FIG. 12 is a diagram for explaining the fourth gesture. FIG. 13 is a diagram for explaining drive control of the vibrating element 33 when the fourth gesture is input. FIG. 14 is a flowchart showing an example of the operation in the input device according to the embodiment. FIG. 15 is a flowchart showing an example of the operation in the input device according to the embodiment. FIG. 16 is an example of a graph showing a third relationship between the drive voltage applied to the vibrating element and the touch load immediately before driving the vibrating element. FIG. 17 is an example of a graph showing a fourth relationship between the drive voltage applied to the vibrating element and the touch load immediately before driving the vibrating element. FIG. 18 is a diagram for explaining another example of the input method to the GUI. FIG. 19 is a diagram for explaining another example of the input method to the GUI. FIG. 20 is a diagram for explaining another example of the input method to the GUI.

(Findings underlying this disclosure)
The present inventor has found that the following problems occur with respect to the tactile presentation device described in the "Background Art" column.

In the above tactile presentation device, when the operating finger traces on the touch pad, the position of the finger on the touch pad is located in the peripheral area including the boundary of the target corresponding to the icon displayed on the display device. By applying a predetermined drive voltage to the actuator, a tactile presentation is performed so that the frictional force on the finger is reduced. Further, the tactile presentation device applies a voltage smaller than a predetermined driving voltage when it is located in a region other than the peripheral region, and controls the frictional force to the finger to increase. As a result, a tactile presentation reminiscent of the feeling of pulling the finger into the target is realized.

However, in the above-mentioned tactile presentation device, when the user is tracing at a high speed, for example, the frictional force to the finger is reduced in the peripheral area, so that the user may pass the target area and the finger is applied to the target area. You need to slow down and trace your finger to stop. As described above, there is a problem that it is difficult to input to the touch sensor as intended by the user.

In order to solve the above problems, the present inventor has come to find an input device having the following configuration after diligent studies.

The input device according to one aspect of the present disclosure includes a touch sensor that detects a touch position on the operation surface by the operating body, a vibration element that presents a tactile sensation to the operation surface by driving in an ultrasonic band, and the touch sensor. And a control unit electrically connected to the vibrating element, the control unit accepts an input to the touch sensor by the first gesture in a predetermined direction as a first input, and the initial stage of the first gesture. When the touch sensor receives a second gesture having a second length shorter than the first length of the first gesture in the predetermined direction from the position, the vibration element is started to be driven, and the vibration element is started from the initial position. When the touch sensor receives a third gesture having a third length longer than the second length and shorter than the first length in a predetermined direction, the driving of the vibrating element is stopped.

According to this, in the first gesture, the driving of the vibrating element is stopped when the third gesture is accepted, so that the driving of the vibrating element can be stopped at a position before the input of the first gesture is completed. In other words, the drive of the vibrating element can be stopped at a position before the finger reaches the peripheral region from the conventional target region to increase the frictional force on the finger. Therefore, the user can perform an operation to stop the movement of the operating body when the friction coefficient of the operating surface is increased by stopping the driving of the vibrating element, and the input of the first gesture is completed. The operation of positioning the operating body at the position can be easily performed. Therefore, it is possible to easily input (first input) to the touch sensor by a gesture (first gesture) having a length as intended by the user.

Further, the control unit may accept an input by the fourth gesture having a fourth length exceeding the first length in the predetermined direction from the initial position as a second input different from the first input. ..

Therefore, by counting the number of times the friction coefficient changes, the user knows that the second tactile presentation has reached the range where the fourth gesture is input beyond the first gesture, and the fourth gesture. The operation of positioning the operating body at the position where is completed can be easily performed. Therefore, the input to the touch sensor (second input) by the fourth gesture can be easily performed.

Further, the control unit (i) further calculates the moving speed of the operating body in the second gesture using the change in the touch position per unit time detected by the touch sensor, and (ii). In driving the vibrating element, the vibrating element may be driven with a smaller driving voltage as the calculated moving speed is faster.

When the user performs the second input by the fourth gesture, the tactile sensation is presented when the tactile sensation having an amplitude larger than a predetermined amplitude is presented in the first tactile sensation presented from the second gesture to the third gesture. While in the meantime, the coefficient of friction becomes smaller than the predetermined coefficient of friction. Therefore, when the tactile presentation is stopped, the amount of increase in the coefficient of friction becomes larger than a predetermined value before and after the tactile presentation is stopped, and a stronger braking feeling is given to the operating body in the section where the operating body is about to pass. It becomes. In this way, when the user is trying to perform the second input by the fourth gesture, a strong braking feeling is given by performing the tactile presentation before the second tactile presentation corresponding to the completion of the fourth gesture. Then, it is hindered to smoothly perform the fourth gesture.

Here, when the user performs the second input by the fourth gesture, the moving speed of the operating body in the second gesture is predicted to be faster than a predetermined speed. For this reason, regarding the first tactile presentation tactile sensation, when the vibration element is driven with a smaller drive voltage as the moving speed is faster, the vibration amplitude of the vibration element becomes smaller and the user is trying to perform the fourth gesture. Can reduce the amount of increase in the coefficient of friction. Therefore, when the user performs the fourth gesture, the braking feeling due to the presentation of the tactile sensation given to the operating body can be reduced, so that the second input by the fourth gesture can be smoothly performed.

Further, the control unit corresponds to the moving speed in the first relationship by using the first relationship in which the drive voltage applied to the vibrating element decreases at a constant decrease rate with respect to the increase in the moving speed. The vibrating element may be driven by the driving voltage.

Therefore, the faster the moving speed of the operating body, the easier it is to drive the vibrating element with a smaller amplitude.

Further, the control unit uses the second relationship in which the drive voltage applied to the vibrating element decreases at a decrease rate that becomes smaller with respect to the increase in the moving speed as the moving speed increases. In this relationship, the vibrating element may be driven by a driving voltage corresponding to the moving speed.

Therefore, in the region where the moving speed of the operating body is slower than the predetermined speed and the region where the moving speed is fast, the reduction rate of the amplitude in the region where the moving speed is faster than the slow region can be reduced.

Further, the touch sensor is provided with a load sensor that detects a touch load on the touch sensor, and the control unit (i) further determines the moving speed of the operating body in the second gesture. It is calculated using the change of the touch position per unit time detected by the touch sensor, and (ii) in the driving of the vibrating element, the faster the calculated moving speed is, the smaller the driving voltage is, and the second gesture. The smaller the touch load obtained from the load sensor, the smaller the drive voltage may be used to drive the vibration element.

When the user performs the second input by the fourth gesture, the tactile sensation is presented when the tactile sensation having an amplitude larger than a predetermined amplitude is presented in the first tactile sensation presented from the second gesture to the third gesture. While in the meantime, the coefficient of friction becomes smaller than the predetermined coefficient of friction. Therefore, when the presentation of the tactile sensation is stopped, the amount of increase in the coefficient of friction becomes larger than the predetermined value before and after the stop of the presentation of the tactile sensation, and a stronger braking feeling is given to the operating body in the section where the operating body is about to pass. It becomes. In this way, when the user is trying to perform the second input by the fourth gesture, a strong braking feeling is given by performing the tactile presentation before the second tactile presentation corresponding to the completion of the fourth gesture. Then, it is hindered to smoothly perform the fourth gesture.

Here, when the user makes a second input by the fourth gesture, the moving speed of the operating body in the second gesture is predicted to be faster than a predetermined speed, and further, the touch load in the second gesture is a predetermined load. Is expected to be smaller than. Therefore, regarding the tactile sensation presented from the second gesture to the third gesture, the vibrating element 33 is driven with a smaller drive voltage as the moving speed is faster and a smaller drive voltage as the touch load is smaller. When the amplitude of the vibration of the vibrating element becomes small and the user intends to perform the fourth gesture, the amount of increase in the coefficient of friction can be made small. Therefore, the prediction accuracy at which the user is trying to perform the fourth gesture is improved, and the braking feeling due to the presentation of the tactile sensation given to the operating body 20 when the user performs the fourth gesture can be reduced. The second input by gesture can be performed smoothly.

Further, the control unit has a first relationship in which the drive voltage applied to the vibrating element decreases at a constant decrease rate with respect to the increase in the moving speed, and the drive voltage is constant with respect to the decrease in the touch load. The vibrating element is driven by a drive voltage corresponding to the moving speed in the first relationship and corresponding to the touch load in the third relationship by using the third relationship that decreases at the rate of decrease of. You may.

Therefore, it is possible to easily drive the vibrating element with a smaller amplitude as the moving speed of the operating body is faster and with a smaller amplitude as the touch load is smaller.

Further, the control unit has a second relationship in which the drive voltage applied to the vibrating element decreases at a decreasing rate as the moving speed increases, and the touch load decreases. As a result, the drive voltage applied to the vibrating element corresponds to the moving speed in the second relationship by using the fourth relationship in which the drive voltage is reduced at a decrease rate that becomes smaller with respect to the decrease in the touch load. In the fourth relationship, the vibrating element may be driven by a driving voltage corresponding to the touch load.

Therefore, in the region where the moving speed of the operating body is slower than the predetermined speed and the region where the moving speed is fast, the reduction rate of the amplitude in the region where the moving speed is faster than the slow region can be reduced. Further, in the region where the touch load is larger than the predetermined load and the region where the touch load is smaller, the reduction rate of the amplitude in the region where the touch load is smaller than the region where the touch load is large can be reduced.

Further, a display unit electrically connected to the control unit is provided, and the control unit (i) causes the display unit to selectively display one UI among a plurality of UIs, and (ii). The first length, the second length, and the second length for identifying the first gesture, the second gesture, and the third gesture, respectively, according to the one UI displayed on the display unit. The third length may be changed.

According to this, since the first gesture can be changed to a length corresponding to the UI (User Interface), the user can easily perform an appropriate input according to each UI.

Further, each of the plurality of UIs includes a plurality of selection targets, and the control unit includes the plurality of selection targets included in the one UI displayed on the display unit. The first length, the second length, and the first, based on at least one of the size of one of the selections, the number of the plurality of selections, and the spacing of the plurality of selections. The length of 3 may be changed.

According to this, since the first to third lengths for specifying each gesture are changed according to the display states of a plurality of selection targets included in the UI displayed on the display unit, the operation body The accuracy of guiding the user to the position on the touch sensor corresponding to the position to be stopped on the UI is improved, and the user can easily input to the touch sensor by the gesture of the intended length.

Further, the control unit may change the first length, the second length, and the third length so that the larger the size of the one selection target, the longer the length.

According to this, the larger the size of one selection target, the longer the first to third lengths, so that the user can quickly reach the area corresponding to the selection target on the touch sensor. You can feel the increase in frictional force on the operating body at each stage. As a result, the accuracy of guiding the operating body to the position on the touch sensor corresponding to the position to be stopped on the UI is improved, and the user can easily input to the touch sensor with the gesture of the intended length. Can be done.

Further, the control unit may change the first length, the second length, and the third length so that the length becomes shorter as the number of the plurality of selection targets increases.

According to this, the larger the number of selection targets included in the UI, the shorter the first to third lengths, so that the user distinguishes each selection target for each of a large number of selection targets and rubs against the operating body. You can feel the increase in power. As a result, the accuracy of guiding the operating body to the position on the touch sensor corresponding to the position to be stopped on the UI is improved, and the user can easily input to the touch sensor with the gesture of the intended length. Can be done.

Further, the control unit may change the first length, the second length, and the third length so that the wider the interval between the plurality of selection targets, the longer the distance.

According to this, the wider the interval between the plurality of selection targets included in the UI, the longer the first to third lengths, so that the user can select the operation body on the touch sensor after moving a long distance. You can feel the increase in the frictional force on the operating body at an early stage after reaching the area corresponding to. As a result, the accuracy of guiding the operating body to the position on the touch sensor corresponding to the position to be stopped on the UI is improved, and the user can easily input to the touch sensor with the gesture of the intended length. Can be done.

Further, the control unit is further provided with a display unit electrically connected to the control unit, and the control unit (i) has a UI including a plurality of selection targets arranged side by side in at least two different directions on the display unit. Even if (ii) the first length, the second length, and the third length are changed based on the moving direction of the operating body of the touch sensor to the operating surface. good.

According to this, since the first to third lengths are variable according to the moving direction of the operating body, for example, when the operating body moves from the diagonal direction to the selection target in the selection target of the quadrangle, the operation body moves in the horizontal direction or Compared to the case where the operating body moves from the vertical direction to each selection target, the first to third lengths are longer, and the frictional force on the operating body increases at an early stage after the operating body is applied to the selection target. I can feel it. As a result, the accuracy of guiding the operating body to the position on the touch sensor corresponding to the position to be stopped on the UI is improved, and the user can easily input to the touch sensor with the gesture of the intended length. Can be done.

It should be noted that these general or specific embodiments may be realized in a recording medium such as a system, method, integrated circuit, computer program or computer readable CD-ROM, and the system, method, integrated circuit, computer program. And may be realized by any combination of recording media.

Hereinafter, the input device according to one aspect of the present disclosure will be specifically described with reference to the drawings.

(Embodiment)
[1. Input device configuration]
First, with reference to FIG. 1, the configuration of the vehicle interior of the vehicle in which the input device and the input device according to the embodiment are arranged will be described. FIG. 1 is a diagram showing an example of a configuration of an input device according to an embodiment and a vehicle interior of a vehicle in which the input device is arranged. In the following, the forward direction, the rear direction, the right direction, and the left direction are defined with reference to the traveling direction of the vehicle. It also defines the upward, downward, horizontal, and vertical directions when the wheels of the vehicle are on the ground.

In the passenger compartment of the automobile 1 (an example of a vehicle) shown in FIG. 1, a touch pad 30 constituting an input device 10 and a display 50 are mounted. Further, a shift lever 90 and a steering 70 are further arranged in the passenger compartment of the automobile 1. The input device 10 is, for example, a device that inputs to a menu screen or a search screen as a GUI (Graphical User Interface) for operating a car navigation system, an audio device for playing an optical disk, a video playback device, or the like. .. The touch pad 30 is a device for inputting to the GUI displayed by the display 50 of the input device 10 mounted on the vehicle such as the automobile 1.

The touch pad 30 is an input interface for inputting to the GUI displayed on the display 50 of the input device 10. The user can operate the input device 10 mounted on the automobile 1 by inputting to the GUI.

The touch pad 30 is arranged behind the shift lever 90. That is, the touch pad 30 is arranged at a position within the reach of the user in the seat 60 while the user in the automobile 1 is sitting, and is located at a position other than the steering 70. The driver, who is a user, can operate the input device 10 by inputting an input to the touch pad 30 arranged behind the shift lever 90 with his left hand. The touch pad 30 may not be arranged at the above position as long as it is arranged at a position other than the steering 70 within the reach of the user. Note that FIG. 1 takes a right-hand drive car as an example, but even if it is a left-hand drive car, the left and right sides are only reversed, so that the same thing can be said for a right-hand drive car.

The steering 70 is for steering the automobile 1, and has a ring-shaped rim 71, a substantially T-shaped spoke 72 integrally formed on the inner peripheral surface of the rim 71, and a central portion of the spoke 72. It has a horn switch cover 73 that covers a horn switch (not shown) arranged in. The configuration of the touch pad 30 will be described later.

The display 50 displays a car navigation map, a reproduced image, a GUI for operating the input device 10, a GUI for controlling other in-vehicle devices, and the like. The display 50 is realized by, for example, a liquid crystal display, an organic EL (Electroluminescence) display, or the like. The display 50 is an example of a display unit.

The input device 10 may be connected to the speaker 80 and output sound to the speaker 80. Further, other in-vehicle devices include, for example, an air-conditioning device, and the operation of the air-conditioning device may be controlled by an input in the input device 10.

Next, the hardware configuration of the touch pad 30 will be described with reference to FIG.

FIG. 2 is an external front view of the touchpad when viewed from above.

The touch pad 30 has a touch sensor 31, a pressure sensor 32, and a vibration element 33.

The touch sensor 31 is a sensor that receives a touch from the operating body 20 operated by the user. Here, the operating body 20 is a finger, a stylus, or the like. The touch sensor 31 is a position on the operation surface 31a of the touch sensor 31 and is a sensor that detects a part of the user's body (for example, a finger) or a position (touch position) touched by a touch pen for a touch pad or the like. be. The detection result by the touch sensor 31 may be indicated by two-dimensional coordinates on the operation surface 31a.

Further, the touch sensor 31 may be a sensor that accepts a plurality of touches by the user, that is, multi-touch. That is, even if the touch sensor 31 can receive not only the touch position by one finger but also two touch positions by two fingers and three touch positions by three fingers at the same timing. good.

The pressure sensor 32 is a load sensor provided in the touch sensor 31 and detecting a touch load on the touch sensor 31. For example, the pressure sensor 32 is arranged in an area overlapping the touch sensor 31, and detects the pressing force of the operating body 20 on the touch sensor 31. The pressure sensor 32 is an example of a load sensor.

An input of a pressing force larger than a predetermined pressing force to the pressure-sensitive sensor 32 may be accepted, for example, as an input indicating a determination. Further, the input indicating the determination to the touch pad 30 may be an input by double tapping to the touch sensor 31.

The vibrating element 33 is a piezoelectric element driven in the ultrasonic band. The vibrating element 33 is arranged on a surface opposite to the operation surface 31a of the touch sensor 31, and when driven, presents a tactile sensation to the operating body 20 that touches the operation surface 31a. When the tactile sensation of the vibrating element 33 is presented to the operation surface 31a, the dynamic friction coefficient on the operation surface 31a during the gesture operation (tracing operation) in which the operation body 20 moves in contact with the operation surface 31a is higher than before the presentation. Is also reduced. As a result, the operating body 20 becomes slippery on the operating surface 31a during the presentation of the tactile sensation as compared with that before the presentation of the tactile sensation. Further, when the amplitude of the vibration for presenting the tactile sensation by the vibration element 33 is adjusted, the friction coefficient of the operation surface 31a at the time of the gesture operation is adjusted. As a result, the slipperiness is adjusted on the operation surface 31a of the operation body 20.

In this embodiment, the touch pad 30 is arranged substantially vertically in the vertical direction. That is, the touch pad 30 is arranged so that the operation surface 31a that receives the touch of the touch sensor 31 faces upward. The touch pad 30 may be arranged substantially vertically in the front-rear direction. In this case, the touch pad 30 may be arranged so that the operation surface 31a that receives the touch of the touch sensor 31 faces rearward, for example.

The user can input to the GUI 11 displayed on the display 50 of the input device 10 by inputting to the touch sensor 31 and the pressure sensor 32 provided in the touch pad 30.

Here, the pressure-sensitive sensor 32 is used as the load sensor for detecting the push input to the touch pad 30, but the pressure sensor 32 is not limited thereto. The load sensor may be configured such that, for example, a push switch is provided directly under the touch sensor 31 and the push switch detects a push input with a push pressure larger than a predetermined push pressure on the touch pad 30.

[2. Input device function configuration]
Next, the functional configuration of the input device will be described.

FIG. 3 is a block diagram showing an example of a functional configuration of an input device mounted on an automobile according to an embodiment.

As shown in FIG. 3, the input device 10 includes a touch pad 30, a control unit 40, and a display 50.

When the touch pad 30 receives the input to the touch sensor 31 and the pressure sensitive sensor 32, the touch pad 30 outputs an input signal indicating the input to the control unit 40.

The control unit 40 is electrically connected to the touch sensor 31, the pressure sensor 32, and the vibration element 33. The control unit 40 receives the input signal output by the touch pad 30 and controls the drive of the vibrating element 33 according to the received input signal. Further, the control unit 40 changes the GUI 11 displayed on the display 50 according to the input signal output by the touch pad 30. The details of the control according to the input signal by the control unit 40 will be described later.

The control unit 40 may be realized by, for example, a processor that executes a predetermined program and a memory that stores the predetermined program, or may be realized by a dedicated circuit. The control unit 40 may be realized by, for example, an ECU (Electronic Control Unit).

Hereinafter, the GUI 11 displayed on the display 50 by the control unit 40 will be described with reference to FIG.

FIG. 4 is a diagram showing an example of a GUI and a touch pad displayed on a display.

As shown in FIG. 4, the control unit 40 causes the display 50 to display the GUI 11 of the keyboard layout. The GUI 11 includes a plurality of selection targets 12, 14a, 14b, 15, 16a, 16b, 16c, 16d. Further, the GUI 11 may include a display bar 13 and a clock display 17 indicating the current time. When the control unit 40 receives an input indicating a determination in a state where one of a plurality of selection targets 12, 14a, 14b, 15, 16a, 16b, 16c, and 16d is selected according to the detection result of the touch pad 30. , Performs a specific function associated with the selected selection target.

Each of the plurality of selection targets 12 is a selection target for the control unit 40 to accept the input of one character (alphabet) corresponding to the selection target 12. That is, when the control unit 40 receives the input to the selection target 12, the control unit 40 executes the input of one character indicated by the selection target 12.

The display bar 13 is a portion where characters that have already been input by the control unit 40 are displayed.

The selection target 14a is a selection target for the control unit 40 to accept an input indicating that the cursor indicating the position where the next character is input in the character or character string displayed on the display bar 13 is moved to the left side. Is. The selection target 14b is a selection target for the control unit 40 to accept an input indicating that the cursor is moved to the right in the character or character string displayed on the display bar 13. That is, when the control unit 40 receives the input to the selection target 14a or the selection target 14b, the control unit 40 moves the cursor to the left or right according to the received input in the character or character string displayed on the display bar 13. ..

The selection target 15 is a selection target for the control unit 40 to accept an input for erasing the character or the character string displayed on the display bar 13. The selection target 15 is, for example, a selection target for erasing one character or a character string displayed on the display bar 13 immediately before the cursor is displayed, that is, a selection for executing a backspace function. It is a target. That is, when the control unit 40 receives the input to the selection target 15, the control unit 40 erases one character or the character string input on the display bar 13 immediately before the cursor is displayed. Of the characters or character strings displayed on the display bar 13, one character immediately before the cursor is displayed is one character adjacent to the left side of the cursor.

The selection targets 16a and 16b are selection targets for switching the characters indicated by the plurality of selection targets 12 displayed on the GUI 11 of the keyboard layout displayed on the display 50. For example, the selection target 16a is a selection target for switching the characters indicated by the plurality of selection targets 12 to the characters corresponding to numbers. Further, the selection target 16b is a selection target for switching the characters indicated by the plurality of selection targets 12 to the characters corresponding to the symbols.

Note that FIG. 4 shows an example in which a keyboard layout for inputting alphabets such as a QWERTY layout is displayed on the GUI 11, but the keyboard layout displayed on the GUI 11 is not limited to this, and the keyboard layout displayed on the GUI 11 is a numeric keypad layout or the like. It may be an array of number input, an array of kana character input, or the like. These keyboard layouts are switched by selecting and highlighting either the selection target 16a or the selection target 16b, and then when the control unit 40 receives an input indicating a decision, the keyboard layout displayed on the display 50 is displayed. , Numbers, symbols, etc. can be switched. The details of the process of determining the selection target to be highlighted among the plurality of selection targets 12, 14a, 14b, 15, 16a, and 16b will be described later.

Next, the gesture operation to the GUI 11 by the control unit 40 and the display control of the GUI 11 will be specifically described. The gesture operation is also simply called a gesture.

5 and 6 are diagrams for explaining an example of an input method to the GUI.

FIG. 5A is a diagram for explaining highlighting displayed on the GUI 11 in response to a touch input to the touch pad 30. FIG. 5B is a diagram showing an input to the touch pad 30.

As shown in FIG. 5, when the touch sensor 31 of the touch pad 30 detects that the operation body 20 has come into contact with the operation surface 31a, the control unit 40 has a plurality of selection targets 12, 14a, 14b, 15, and so on. The selection target of one of 16a and 16b is highlighted. The one selection target highlighted at this time may be a predetermined selection target, a selection target for which the previous input was accepted, or a selection target highlighted last time. May be good.

Further, one selection target is a position on the touch pad 30 with which the operating body 20 has come into contact when the touch pad 30 has transitioned from a state in which the contact with the operating body 20 has not been detected to a state in which the touch pad 30 has detected contact. It may be a selection target located closest to the position on the corresponding display 50. In this case, the position on the display 50 corresponding to the position on the touch pad 30 is a position having a predetermined correspondence relationship between the two coordinate planes set on the touch pad 30 and the display 50, respectively. That is. That is, the plurality of coordinates on the touch pad 30 and the plurality of coordinates on the display 50 may be associated with each other on a one-to-one basis.

The highlighting means, for example, that the selection target to be highlighted is displayed in a color different from that of other selection targets, the selection target is displayed larger than the other selection targets, or the selection target is displayed. It is to display an area with a thick frame. FIG. 5 shows an example in which the selection target 19a in which the touch sensor 31 displays “h” is highlighted.

The control unit 40 may select the highlighted selection target. Here, the selection is a state indicating that the function associated with the selection target to be selected is executed when the input indicating the determination is performed next. For example, in the case of the example shown in FIG. 5A, when the control unit 40 receives the input indicating the determination, the control unit 40 accepts that the “h” indicated by the highlighted selection target 19a is input and is input. "H" is displayed on the display bar 13.

FIG. 6A is a diagram for explaining an example of control of highlighting on the GUI 11 by the control unit 40 when the touchpad 30 detects the first input. FIG. 6B is a diagram showing an example of a first input to the touch pad 30.

When the control unit 40 detects that the touch sensor 31 of the touch pad 30 has received the input by the first gesture J1 in the predetermined direction (right direction in FIG. 6), the control unit 40 accepts the detected input as the first input. .. The first gesture J1 will be described later.

When the control unit 40 receives the first input, the highlighted selection target is adjacent to the highlighted selection target from the first selection target highlighted by the time the first input is received in a predetermined direction of the first selection target. Switch to the second selection target. For example, when the first input is received while the control unit 40 is highlighting the selection target 19a in which "h" is displayed as shown in FIG. 5, the control unit 40 cancels the highlighting on the selection target 19a. In addition, as shown in FIG. 6, the selection target 19b on which "j" is displayed, which is adjacent to the right side of the selection target 19a, is highlighted. When the control unit 40 receives the first input by the first gesture J1 in the upward direction, the control unit 40 highlights the selection target in which "y" is displayed, which is adjacent to the selection target 19a in the upward direction. ..

Next, the first gesture J1 and the tactile sensation presented when the first gesture J1 is input will be described with reference to FIGS. 7 and 8. That is, here, the drive control of the vibration element 33 by the control unit 40 when the first gesture J1 is input will be described.

FIG. 7 is a diagram for explaining the first gesture J1. FIG. 8 is a diagram for explaining drive control of the vibrating element 33 when the first gesture J1 is input.

In the control unit 40, the second gesture J2 having a second length L2 shorter than the first length L1 of the first gesture J1 is detected by the touch sensor 31 of the touch pad 30 in a predetermined direction from the initial position P1. Then, the driving of the vibrating element 33 is started. In other words, the control unit 40 detects by the touch sensor 31 that the operating body 20 has reached the position P2 separated by the second length L2 in a predetermined direction from the initial position P1 in the gesture operation from the initial position P1. Then, the drive voltage V1 is applied to the vibrating element 33 as shown in FIG. As described above, the control unit 40 starts driving the vibration element 33 when the touch sensor 31 receives the second gesture J2 starting from the initial position P1 of the first gesture J1.

The second gesture J2 has the same starting point as the first gesture J1 and is shorter than the first gesture J1. That is, the second gesture J2 is also accepted before the first gesture J1 is accepted.

The control unit 40 has a third gesture J3 having a third length L3, in which the second gesture J2 is extended in a predetermined direction and is longer than the second length L2 and shorter than the first length L1. When detected by the touch sensor 31 of the touch pad 30, the driving of the vibrating element 33 is stopped. In other words, the control unit 40 detects by the touch sensor 31 that the operating body 20 has reached the position P3 which is further separated from the position P2 by the third length L3 in the gesture operation from the initial position P1. Then, as shown in FIG. 8, the drive voltage to the vibrating element 33 is set to 0. In this way, the control unit 40 stops driving the vibration element 33 when the touch sensor 31 receives the third gesture J3 starting from the initial position P1 of the first gesture J1.

The third gesture J3 has the same starting point as the first gesture J1 and the second gesture J2, is longer than the second gesture J2, and is shorter than the first gesture J1. That is, the third gesture J3 is also accepted before the first gesture J1 is accepted.

In this way, the control unit 40 presents a tactile sensation while the operating body 20 is moving from the position P2 to the position P3 in the first gesture J1. Therefore, the operating body 20 operated by the user is presented with a tactile sensation between the time when the second gesture J2 is completed and the time when the third gesture J3 is completed, so that the dynamic friction coefficient on the operation surface 31a is presented. Is reduced. When the third gesture J3 is completed, the presentation of the tactile sensation is completed, so that the state where the friction coefficient is reduced returns to the original state. That is, when the third gesture J3 is completed, the coefficient of dynamic friction increases, and the operating body 20 becomes less likely to slip on the operating surface 31a. Therefore, the user can perform an operation of stopping the movement of the operating body when the friction coefficient of the operating surface is increased by stopping the driving of the vibrating element, and the input of the first gesture J1 is completed. The operation of positioning the operating body at the position P4 to be performed can be easily performed.

Next, a method of determining the drive voltage given to the vibrating element 33 by the control unit 40 will be described.

The control unit 40 determines the drive voltage of the vibration element 33 according to the moving speed of the operating body 20 in the second gesture J2. Specifically, the control unit 40 calculates the driving voltage of the vibrating element 33 and the moving speed of the operating body 20 at the position immediately before the position P2 where the second gesture J2 is completed, and the faster the calculated moving speed is, the smaller the moving speed is. The vibration element 33 is driven by the drive voltage. As a result, the vibrating element 33 is driven with a small amplitude. The position immediately before the position P2 where the second gesture J2 is completed may be, for example, the position of the operating body 20 detected in the frame immediately before reaching the position P2. The immediately preceding frame is, for example, a frame 1 to 5 frames before the frame reaching the position P2.

The control unit 40 determines the drive voltage according to the moving speed of the operating body 20 at the position immediately before the position P2 in the second gesture J2, but the control unit 40 determines the driving voltage according to the moving speed of the operating body 20 in the second gesture J2. If the drive voltage is determined, the drive voltage may be determined according to the moving speed of any position. For example, the control unit 40 may determine the drive voltage according to the moving speed at the position from the position where half of the position of the second gesture J2 has passed until the second gesture J2 is completed.

The control unit 40 calculates the moving speed of the operating body 20 by using the change of the touch position detected by the touch sensor 31 per unit time. Here, the unit time for calculating the moving speed may be a frame rate which is a time interval between a plurality of timings for updating the screen which is the GUI 11 on the display 50 to the latest state, or the touch pad 30. It may be a sampling cycle which is a time interval between a plurality of timings detected by.

For example, as shown in FIG. 9, the control unit 40 may determine the drive voltage applied to the vibrating element 33 to be a drive voltage that linearly decreases as the moving speed increases. That is, the control unit 40 uses the first relationship in which the drive voltage decreases at a constant rate of decrease with respect to the increase in the moving speed, and the vibration element 33 has the vibration element 33 at the drive voltage corresponding to the moving speed in the first relationship. Drive. Note that FIG. 9 is an example of a graph showing the first relationship between the drive voltage applied to the vibrating element 33 and the tracing speed immediately before driving the vibrating element 33. In FIG. 9, the vertical axis shows the ratio to the reference drive voltage, and the horizontal axis shows the moving speed of the operating body 20 in the second gesture J2. Since the drive voltage is shown as a ratio in FIG. 9, the drive voltage to be applied is obtained by multiplying the reference drive voltage by the ratio shown by a value of 0 to 100%. The reference drive voltage is a fixed value.

Hereinafter, the moving speed indicates the number of pixels in which the operating body 20 moves per unit frame. Further, here, 1 pixel indicates the minimum unit of the two-dimensional position that can be detected by the touch sensor 31.

Further, for example, as shown in FIG. 10, the control unit may determine a drive voltage such that the drive voltage applied to the vibrating element 33 becomes non-linearly smaller as the moving speed increases. That is, the control unit 40 moves in the second relationship using the second relationship in which the drive voltage applied to the vibrating element 33 decreases at a decreasing rate that becomes smaller with respect to the increase in the moving speed as the moving speed increases. The vibrating element 33 is driven by a driving voltage corresponding to the speed. Note that FIG. 10 is an example of a graph showing the second relationship between the drive voltage applied to the vibrating element 33 and the tracing speed immediately before driving the vibrating element 33.

FIG. 11A is a diagram for explaining an example of control of highlighting on the GUI 11 by the control unit 40 when the touch pad 30 detects the second input. FIG. 11B is a diagram showing an example of a second input to the touch pad 30.

When the control unit 40 detects that the input by the fourth gesture J4 has been accepted by the touch sensor 31 of the touch pad 30, the control unit 40 accepts the detected input as the second input. The fourth gesture J4 will be described later.

When the control unit 40 receives the second input, the highlighted selection target is adjacent to the highlighted selection target from the first selection target highlighted by the time the second input is received in a predetermined direction of the first selection target. Switch to a third selection target that is further adjacent to the second selection target. For example, when the second input is received while the control unit 40 is highlighting the selection target 19a in which "h" is displayed as shown in FIG. 5, the control unit 40 cancels the highlighting on the selection target 19a. And, as shown in FIG. 6, highlighting the selection target 19c in which "k" is displayed, which is adjacent to the selection target 19b in which "j" is displayed, which is adjacent to the right side of the selection target 19a. do.

Next, the fourth gesture J4 and the tactile sensation presented when the fourth gesture J4 is input will be described with reference to FIGS. 12 and 13. That is, here, the drive control of the vibration element 33 by the control unit 40 when the fourth gesture J4 is input will be described.

FIG. 12 is a diagram for explaining the fourth gesture J4. FIG. 13 is a diagram for explaining drive control of the vibrating element 33 when the fourth gesture J4 is input. Note that the position P11 in FIGS. 12 and 13 indicates the same position as the position P4 in FIGS. 7 and 8.

When the first gesture J1 is input from the initial position P1, the same as the description using FIGS. 7 and 8. The first gesture J1 may be performed when the gesture is completed in the range between the position P3 and the position P11 (hereinafter referred to as the first input range R1). The control unit 40 determines that the gesture is completed when the period located on the first input range R1 is equal to or longer than the predetermined stagnation period and the movement amount of the operating body 20 per unit time is equal to or less than the predetermined movement amount. You may.

When the control unit 40 receives a second input different from the first input, in order to distinguish it from the first gesture J1, the control unit 40 inputs the input by the fourth gesture J4 which is further extended in a predetermined direction beyond the first input range R1. 2 Accept as input. Therefore, the same tactile presentation as the tactile presentation process for presenting the tactile sensation for the first input starting from the initial position P1 starting from the position P11 at the end farther from the initial position P1 of the first input range R1. Perform processing.

That is, in the control unit 40, in the fourth gesture J4 in which the first gesture J1 is extended in a predetermined direction, the fifth gesture J5 of the second length L2 in the predetermined direction starting from the position P11 is the touch pad 30. When detected by the touch sensor 31, the driving of the vibrating element 33 is started. Then, in the control unit 40, the fifth gesture J5 is extended in a predetermined direction, and the sixth gesture J6 of the third length L3 in the predetermined direction starting from the position P11 is detected by the touch sensor 31 of the touch pad 30. Then, the driving of the vibrating element 33 is stopped.

In this way, the control unit 40 presents a tactile sensation while the operating body 20 is moving from the position P12 to the position P13 in the fourth gesture J4 in which the first gesture J1 is extended. Therefore, the operating body 20 operated by the user is presented with a tactile sensation between the time when the fifth gesture J5 is completed and the time when the sixth gesture J6 is completed, so that the dynamic friction coefficient on the operation surface 31a is presented. Is reduced. When the sixth gesture J6 is completed, the presentation of the tactile sensation is completed, so that the state where the friction coefficient is reduced returns to the original state. That is, when the sixth gesture J6 is completed, the coefficient of dynamic friction increases, and the operating body 20 becomes less likely to slip on the operating surface 31a. Therefore, the user can perform an operation of stopping the movement of the operating body when the friction coefficient of the operating surface is increased by stopping the driving of the vibrating element, and the seventh operation starting from the position P11. The operation of positioning the operating body at the position P14 where the input of the gesture J7 is completed can be easily performed.

It can be said that the fourth gesture J4 is a gesture made by continuously combining the first gesture J1 and the seventh gesture J7.

When the fourth gesture J4 is performed, two tactile presentations are performed. This is a tactile sensation for stopping the operating body 20 at the position P11 where the first gesture J1 is completed when the fourth gesture J4 is performed, and stopping the operating body 20 at the position P14 where the fourth gesture J4 is completed. This is because a tactile sensation is presented.

In many cases, the moving speeds of the operating bodies 20 are different from each other in the two tactile presentations. Specifically, in the first tactile presentation, the tactile presentation is performed with an amplitude corresponding to the movement speed at the position immediately before the position P2, and in the second tactile presentation, the movement speed at the position immediately before the position P12 is performed. Tactile presentation is performed with the same amplitude. The user is aware that when the second input is intended, the gesture is longer than the first input. Since the position P12 is closer to the position P14 where the fourth gesture J4 is completed than the position P2, the speed at which the operating body 20 passes immediately before the position P12 is higher than the speed at which the operating body 20 passes immediately before the position P2. It can be late.

Since the control unit 40 drives the vibrating element 33 with the drive voltage determined by the relationship of FIG. 9 or FIG. 10, as a result, the drive voltage V11 in the first tactile presentation is the drive voltage in the second tactile presentation. It can be smaller than V12. That is, the amplitude in the first tactile presentation can be made smaller than the amplitude in the second tactile presentation. As a result, the user feels that the frictional force received by the first tactile presentation is relatively large and the frictional force received by the second tactile presentation is relatively small. Therefore, since the difference in the frictional force felt by the user in the first tactile presentation is relatively small, the user feels that the braking feeling to the operating body 20 is also small. On the other hand, since the difference in the frictional force felt by the user in the second tactile presentation is relatively large, the user feels a great feeling of braking to the operating body 20. Therefore, since the user feels the brake feeling due to the second tactile presentation more than the braking feeling due to the first tactile presentation, the second input to the touch sensor 31 by the fourth gesture J4 can be easily performed.

[3. motion]
Next, the operation of the input device 10 will be described with reference to FIGS. 14 and 15.

14 and 15 are flowcharts showing an example of operation in the input device according to the embodiment.

The control unit 40 determines whether or not the operating body 20 is in contact with the touch pad 30 based on the signal from the touch pad 30 (S11). The signal from the touch pad 30 is an input signal indicating an input to the touch sensor 31 and the pressure sensitive sensor 32 included in the touch pad 30. Since the input operation to the pressure sensor 32 has been described in the description of FIG. 2, the description of the input operation to the pressure sensor 32 will be omitted in the description of the operation of FIGS. 14 and 15.

When the control unit 40 determines that the operation body 20 is in contact with the touch pad 30 (Yes in S11), the control unit 40 selects one of the plurality of selection targets 12, 14a, 14b, 15, 16a, and 16b. Highlight (S12).

When the control unit 40 determines that the operating body 20 is not in contact with the touch pad 30 (No in S11), the control unit 40 returns to step S11.

The control unit 40 determines whether or not the operating body 20 has reached the position immediately before the position P2 separated by the second length L2 in a predetermined direction from the initial position P1 contacted in step S11 (S13).

When the control unit 40 determines that the operating body 20 has reached the position immediately before the position P2 (Yes in S13), the control unit 40 calculates the moving speed of the operating body 20 at the position immediately before the operating body 20, and the calculated moving speed and the first The drive voltage is determined using the relation of the above or the second relation (S14). On the other hand, when the control unit 40 determines that the operating body 20 has not reached the position immediately before the position P2 (No in S13), the control unit 40 returns to step S13.

After determining the drive voltage, the control unit 40 determines whether or not the operating body 20 has reached the position P2 (S15).

When the control unit 40 determines that the operating body 20 has reached the position P2 (Yes in S15), the control unit 40 starts driving the vibrating element 33 with the determined drive voltage (S16). On the other hand, when the control unit 40 determines that the operating body 20 has not reached the position P2 (No in S15), the control unit 40 returns to step S15.

After starting the driving of the vibrating element 33, the control unit 40 determines whether or not the operating body 20 has reached the position P3 (S17).

When the control unit 40 determines that the operating body 20 has reached the position P3 (Yes in S17), the control unit 40 stops driving the vibrating element 33 (S18). On the other hand, when the control unit 40 determines that the operating body 20 has not reached the position P3 (No in S17), the control unit 40 returns to step S17.

After stopping the driving of the vibrating element 33, the control unit 40 determines whether or not the operating body 20 has reached the position P4 (S19).

When the control unit 40 determines that the operating body 20 has reached the position P4 (Yes in S19), the control unit 40 determines whether or not the first condition is satisfied in the first input range R1 (S20). The first condition is, for example, that an input for determining the first input is made, or that the period during which the operating body 20 is located on the first input range R1 is a predetermined stagnation period or longer, and the operating body 20 has a predetermined stagnation period or more. The amount of movement per unit time is less than or equal to the predetermined amount of movement. On the other hand, when the control unit 40 determines that the operating body 20 has not reached the position P4 (No in S19), the control unit 40 returns to step S19.

When the control unit 40 determines that the first condition is satisfied in the first input range R1 (Yes in S20), the control unit 40 accepts the first input (S21), and selects adjacent to a predetermined direction of the currently displayed selection target. The target is switched and highlighted (S22), and the operation is terminated.

On the other hand, when the control unit 40 determines that the first condition is not satisfied in the first input range R1 (No in S20), the control unit 40 determines that the first gesture J1 is further extended, and the operating body 20 moves to the position P12. It is determined whether or not the position immediately before has been reached (S23).

When the control unit 40 determines that the operating body 20 has reached the position immediately before the position P12 (Yes in S23), the control unit 40 calculates the moving speed of the operating body 20 at the position immediately before the operating body 20, and the calculated moving speed and the first The drive voltage is determined using the relation of the above or the second relation (S24). On the other hand, when the control unit 40 determines that the operating body 20 has not reached the position immediately before the position P12 (No in S23), the control unit 40 returns to step S23.

After determining the drive voltage, the control unit 40 determines whether or not the operating body 20 has reached the position P12 (S25).

When the control unit 40 determines that the operating body 20 has reached the position P12 (Yes in S25), the control unit 40 starts driving the vibrating element 33 with the determined drive voltage (S26). On the other hand, when the control unit 40 determines that the operating body 20 has not reached the position P12 (No in S25), the control unit 40 returns to step S25.

After starting the driving of the vibrating element 33, the control unit 40 determines whether or not the operating body 20 has reached the position P13 (S27).

When the control unit 40 determines that the operating body 20 has reached the position P13 (Yes in S27), the control unit 40 stops driving the vibrating element 33 (S28). On the other hand, when the control unit 40 determines that the operating body 20 has not reached the position P13 (No in S27), the control unit 40 returns to step S27.

After stopping the driving of the vibrating element 33, the control unit 40 determines whether or not the operating body 20 has reached the position P14 (S29).

When the control unit 40 determines that the operating body 20 has reached the position P14 (Yes in S29), the control unit 40 determines whether or not the second condition is satisfied in the second input range R2 (S30). The second condition is, for example, that an input for determining the second input is made, or that the period during which the operating body 20 is located on the second input range R2 is a predetermined stagnation period or longer, and the operating body 20 has a predetermined stagnation period or more. The amount of movement per unit time is less than or equal to the predetermined amount of movement. On the other hand, when the control unit 40 determines that the operating body 20 has not reached the position P4 (No in S29), the control unit 40 returns to step S29.

When the control unit 40 determines that the second condition is satisfied in the second input range R2 (Yes in S30), the control unit 40 accepts the second input (S31), and selects adjacent to a predetermined direction of the currently displayed selection target. The target is switched and highlighted (S32), and the operation is terminated.

On the other hand, when the control unit 40 determines that the second condition is not satisfied in the second input range R2 (No in S30), it may determine that the cancellation input has been made and terminate the operation. In this case, the control unit 40 may determine that the fourth gesture J4 is further extended, and may perform the same processing as in steps S23 to S32 in a predetermined direction further than the section where the second input is made. .. That is, the operation for the next third input may be performed. In this way, each time it is extended in a predetermined direction from the first input, an operation for a different input may be performed.

The control unit 40 determines whether or not the operating body 20 is separated from the touch pad 30 after the determination is Yes in step S11, and if it is determined that the operating body 20 is separated from the touch pad 30. You may cancel the input. Further, when the touch pad 30 is retouched within a predetermined time after the operation body 20 is separated from the touch pad 30, the operation may be resumed as a continuation from the input to the position where the operation body 20 is separated.

[4. Effect etc.]
The input device 10 according to the present embodiment includes a touch sensor 31, a vibration element 33, and a control unit 40. The touch sensor 31 detects the touch position of the operating body 20 on the operating surface 31a. The vibrating element 33 presents a tactile sensation to the operation surface 31a by driving in the ultrasonic band. The control unit 40 is electrically connected to the touch sensor 31 and the vibration element 33. The control unit 40 accepts an input to the touch sensor 31 by the first gesture J1 in a predetermined direction as a first input. When the touch sensor 31 accepts the second gesture J2 having a second length L2 shorter than the first length L1 of the first gesture J1 in a predetermined direction from the initial position of the first gesture J1. The driving of the vibrating element 33 is started. The control unit 40 has received the third gesture J3 of the third length L3, which is longer than the second length L2 and shorter than the first length L1 in a predetermined direction from the initial position, by the touch sensor 31. Occasionally, the drive of the vibrating element 33 is stopped.

According to this, in the first gesture J1, the drive of the vibrating element 33 is stopped when the third gesture J3 is accepted, so that the driving of the vibrating element 33 is stopped at a position before the input of the first gesture J1 is completed. can do. In other words, the drive of the vibrating element can be stopped at a position before the finger reaches the peripheral region from the conventional target region to increase the frictional force on the finger. Therefore, the user can perform an operation of stopping the movement of the operating body 20 when the friction coefficient of the operating surface 31a is increased by stopping the driving of the vibrating element 33, and the first gesture J1 can be performed. The operation of positioning the operation body 20 at the position where the input is completed can be easily performed. Therefore, it is possible to easily input (first input) to the touch sensor 31 by a gesture (first gesture J1) having a length as intended by the user.

Further, in the input device 10 according to the present embodiment, the control unit 40 accepts an input by a gesture from the initial position P1 to a range exceeding the first length L1 in a predetermined direction as an input different from the first input.

Therefore, by counting the number of times the friction coefficient changes, the user knows that the number of tactile presentations has reached the range in which input by another gesture exceeding the first gesture J1 is made, and another gesture is made. The operation of positioning the operating body at the position where is completed can be easily performed. Therefore, another input to the touch sensor by another gesture can be easily performed.

Further, in the input device 10 according to the present embodiment, the control unit 40 (i) further determines the moving speed of the operating body 20 in the second gesture J2 per unit time of the touch position detected by the touch sensor 31. It is calculated using the change, and (ii) in driving the vibrating element 33, the faster the calculated moving speed is, the smaller the amplitude is driven to drive the vibrating element 33.

When the user performs the second input by the fourth gesture J4, when the tactile sensation having an amplitude larger than a predetermined amplitude is presented in the first tactile sensation presented from the second gesture J2 to the third gesture J3, the tactile sensation is generated. While presented, the coefficient of friction becomes less than the predetermined coefficient of friction. Therefore, when the presentation of the tactile sensation is stopped, the amount of increase in the coefficient of friction becomes larger than the predetermined value before and after the stop of the presentation of the tactile sensation, and the operating body 20 is given a stronger braking feeling in the section where the operating body 20 is about to pass. Will be given. In this way, when the user is trying to perform the second input by the fourth gesture J4, a strong braking feeling is given by performing the tactile presentation before the second tactile presentation corresponding to the completion of the fourth gesture J4. If this happens, it will be hindered from smoothly performing the fourth gesture J4.

Here, when the user performs the second input by the fourth gesture J4, the moving speed of the operating body in the second gesture J2 is predicted to be faster than a predetermined speed. Therefore, for the first tactile presentation tactile sensation, the faster the moving speed, the smaller the driving voltage to drive the vibrating element 33, so that the vibration amplitude of the vibrating element 33 becomes smaller, and the user tries to perform the fourth gesture J4. If so, the amount of increase in the coefficient of friction can be reduced. Therefore, the prediction accuracy at which the user is trying to perform the fourth gesture J4 is improved, and the braking feeling due to the presentation of the tactile sensation given to the operating body 20 when the user performs the fourth gesture J4 can be reduced. The second input by the fourth gesture J4 can be smoothly performed.

Further, in the input device 10 according to the present embodiment, the control unit 40 uses the first relationship that the drive voltage applied to the vibrating element 33 decreases at a constant decrease rate with respect to the increase in the moving speed. In relation to 1, the vibration element 33 is driven by the drive voltage corresponding to the moving speed. Therefore, the faster the moving speed of the operating body 20, the easier it is to drive the vibrating element 33 with a smaller amplitude.

Further, in the input device 10 according to the present embodiment, the control unit 40 decreases at a rate of decrease as the moving speed increases, the driving voltage applied to the vibrating element 33 decreases with respect to the increase in the moving speed. In the second relationship, the vibration element 33 is driven by the drive voltage corresponding to the moving speed. Therefore, in the region where the moving speed of the operating body 20 is slower than the predetermined speed and the region where the moving speed is fast, the reduction rate of the amplitude in the region where the moving speed is faster than the slow region can be reduced.

[5. Modification example]
(1)
In the above embodiment, the control unit 40 determines the drive voltage of the vibrating element 33 according to the moving speed of the operating body 20 in the second gesture J2, but the moving speed of the operating body 20 in the second gesture J2 and It may be determined according to the touch load. In this case, the control unit 40 calculates the driving voltage of the vibrating element 33, the moving speed of the operating body 20 at the position immediately before the position P2 where the second gesture J2 is completed, and the calculated movement in driving the vibrating element 33. The faster the speed, the smaller the drive voltage, and the smaller the touch load obtained from the pressure-sensitive sensor 32 in the second gesture J2, the smaller the drive voltage is used to drive the vibration element 33. As a result, the vibrating element 33 is driven with a small amplitude.

Here, when the user makes a second input by the fourth gesture J4, the moving speed of the operating body in the second gesture J2 is predicted to be faster than a predetermined speed, and further, the touch load in the second gesture J2 is It is expected to be smaller than the predetermined load. Therefore, regarding the tactile sensation presented from the second gesture J2 to the third gesture J3, the vibrating element 33 is driven with a smaller drive voltage as the moving speed is faster and a smaller drive voltage as the touch load is smaller. Therefore, when the vibration amplitude of the vibrating element 33 becomes small and the user intends to perform the fourth gesture J4, the increase amount of the friction coefficient can be made small. Therefore, the prediction accuracy at which the user is trying to perform the fourth gesture J4 is improved, and the braking feeling due to the presentation of the tactile sensation given to the operating body 20 when the user performs the fourth gesture J4 can be reduced. The second input by the fourth gesture J4 can be smoothly performed.

For example, the control unit 40 has a drive voltage that linearly decreases as the moving speed increases as shown in FIG. 9, and the drive voltage applied to the vibrating element 33 is as shown in FIG. The drive voltage may be determined so that it linearly decreases as the touch load decreases. That is, the control unit 40 corresponds to the moving speed in the first relationship by using the first relationship and the third relationship in which the drive voltage decreases at a constant reduction rate with respect to the decrease in the touch load. Moreover, in the third relationship, the vibration element 33 is driven by the drive voltage corresponding to the touch load. More specifically, the control unit 40 calculates the drive voltage corresponding to the moving speed in the first relationship, that is, the first ratio to the reference drive voltage, and corresponds to the touch load in the third relationship. The drive voltage, that is, the third ratio to the reference drive voltage is calculated. Then, the control unit 40 determines the drive voltage to be applied to the vibrating element 33 by multiplying the reference drive voltage by the first ratio and the third ratio. Therefore, the vibrating element 33 can be easily driven with a smaller driving voltage as the moving speed of the operating body 20 is faster, and with a smaller driving voltage as the touch load is smaller.

Note that FIG. 16 is an example of a graph showing a third relationship between the drive voltage applied to the vibrating element 33 and the touch load immediately before driving the vibrating element 33. In FIG. 16, the vertical axis shows the ratio to the reference drive voltage, and the horizontal axis shows the moving speed of the operating body 20 in the second gesture J2.

Further, for example, the control unit 40 has a drive voltage such that the drive voltage applied to the vibrating element 33 becomes non-linearly smaller as the moving speed increases, as shown in FIG. 10, and as shown in FIG. In addition, the drive voltage may be determined so that the larger the touch load, the smaller the non-linearity. That is, the control unit 40 uses the second relationship and the fourth relationship in which the drive voltage applied to the vibrating element 33 decreases at a decreasing rate as the touch load decreases. Therefore, the vibration element 33 is driven by a drive voltage corresponding to the moving speed in the second relationship and corresponding to the touch load in the fourth relationship. More specifically, the control unit 40 calculates the drive voltage corresponding to the moving speed in the second relationship, that is, the second ratio to the reference drive voltage, and corresponds to the touch load in the fourth relationship. The drive voltage, that is, the fourth ratio to the reference drive voltage is calculated. Then, the control unit 40 determines the drive voltage to be applied to the vibrating element 33 by multiplying the reference drive voltage by the second ratio and the fourth ratio. Therefore, in the region where the moving speed of the operating body 20 is slower than the predetermined speed and the region where the moving speed is fast, the reduction rate of the amplitude in the region where the moving speed is faster than the slow region can be reduced. Further, in the region where the touch load is larger than the predetermined load and the region where the touch load is smaller, the reduction rate of the amplitude in the region where the touch load is smaller than the region where the touch load is large can be reduced.

Note that FIG. 17 is an example of a graph showing the fourth relationship between the drive voltage applied to the vibrating element 33 and the touch load immediately before driving the vibrating element 33. In FIG. 17, the vertical axis shows the ratio to the reference drive voltage, and the horizontal axis shows the moving speed of the operating body 20 in the second gesture J2.

The control unit 40 determines the drive voltage by calculating the first ratio and the fourth ratio with respect to the reference drive voltage and multiplying the first ratio and the fourth ratio. May be good. Further, the control unit 40 determines the drive voltage by calculating the second ratio and the third ratio with respect to the reference drive voltage and multiplying the second ratio and the third ratio. May be good.

In addition, in the said embodiment, when the modification (1) is not applied, the touch pad 30 may have the structure which does not have a pressure sensitive sensor 32.

(2)
In the above embodiment, when the operating body 20 stops in the range between the first input range R1 and the second input range R2 where the first gesture J1 is completed, an input indicating cancellation may be made. That is, when a gesture having a length that exceeds the first input range R1 and does not reach the second input range R2 is made, it may be accepted as an input different from the first input.

(3)
In the above embodiment, the control unit 40 has the first to third lengths L1 to L3 for specifying the first to seventh gestures J1 to J7 according to one UI displayed on the display 50. May be changed. That is, when the GUI 11 including the keyboard layout of the alphabet input is displayed on the display 50, the control unit 40 performs the first to seventh gestures so that the tactile presentation control suitable for the keyboard layout of the alphabet input is performed. Each length of J1 to J7 may be set. Further, when the GUI 11 including the arrangement of the number inputs is displayed on the display 50, the control unit 40 performs the first to seventh gestures J1 to so that the tactile presentation control suitable for the arrangement of the number inputs is performed. Each length of J7 may be set. That is, what are the lengths L1 to L4 for specifying each gesture J1 to J7 in the first UI of the plurality of UIs and each length for specifying each gesture J1 to J7 in the second UI? It may be different.

Hereinafter, a specific description will be given.

For example, the control unit 40 has a plurality of selection targets included in one GUI displayed on the display 50, the size of one of the plurality of selection targets, the number of the plurality of selection targets, and the like. And the first length L1, the second length L2, and the third length L3 may be changed based on at least one of the plurality of selection target intervals. In this case, the reference length to be changed is the first length L1, the second length L2, and the third length L3 used in the GUI 11 described in the embodiment. Not limited to this, a predetermined first length, a second length, and a third length may be used. Even if there are predetermined first lengths, second lengths, and third lengths, the relationship between these lengths is the first length L1, the second length L2, and so on. And, it is the same as the third length L3. That is, the first length is longer than the third length, and the third length is longer than the second length.

In this case, the first to third lengths L1 to for specifying the first to seventh gestures J1 to J7 corresponding to the display states of a plurality of selection targets included in the GUI displayed on the display 50. Since L3 is variable, the accuracy of guiding the operating body 20 (finger) to the position on the touch pad 30 corresponding to the position to be stopped on the GUI is improved, and the user can use the gesture sensor of the intended length. The input to 31 can be easily performed.

Specifically, it is as follows.

FIG. 18 is a diagram for explaining another example of the input method to the GUI.

FIG. 18A is a diagram showing an example of GUI 111. FIG. 18B is a diagram showing an example of input to the touch pad 30. FIG. 18 shows the GUI 111 displayed on the display 50 as compared to FIG. 4, which includes two selection targets 112, 113 for selecting the execution of the application that controls the operation of each device of the navigation and the air conditioner. That is, the GUI 111 is a menu screen. The GUI 111 is, for example, an example of a GUI in which the size of the selection target included in the GUI 111 is larger, the number is smaller, and the interval is wider than that of the GUI 11.

First, in order to select the selection target 113 from the initial position P21 on the touch pad 30 corresponding to the selection target 112, the first gesture J1 toward the position P24 on the touch pad 30 corresponding to the selection target 113 is input. Consider the case. In this case, first, the control unit 40 changes the first length L1, the second length L2, and the third length L3 so that the larger the size of one selection target 112 or 113, the longer the length. You may. Specifically, the control unit 40 sets the first length L11, which is longer than the first length L1, as the first length for specifying the first gesture J1. Similarly, the control unit 40 sets the second length L12, which is longer than the second length L2, as the second length for specifying the second gesture J2. Similarly, the control unit 40 sets L13 as a third length for specifying the third gesture J3, which is longer than the third length L3. The second length L12 is longer than the first length L11. The third length L13 is longer than the second length L12 and shorter than the first length L11.

As a result, the input end position P22 of the second gesture J2 is set to a position separated by the second length L12 in a predetermined direction (right direction in FIG. 18) from the initial position P21. Similarly, the position of the end of input of the third gesture J3 is set to a position separated from the initial position P21 by a third length L13 in a predetermined direction.

According to this, as the size of one selection target 112 or 113 becomes larger, the control unit 40 lengthens the first to third lengths L11 to L13, so that the user can use his / her finger on the touch pad 30. The increase in the frictional force on the finger can be felt at an early stage after the area corresponding to the selection target 112 or 113 is reached. As a result, the accuracy of guiding the finger to the position on the touch pad 30 corresponding to the position to be stopped on the GUI 111 is improved, and the user can easily input to the touch sensor 31 with a gesture of the intended length. be able to.

Further, the control unit 40 may change the first length L1, the second length L2, and the third length L3 so that the length becomes shorter as the number of the plurality of selection targets increases. That is, since the number of selection targets included in the GUI 111 is smaller than that of the GUI 11, the control unit 40 has a first length L11, a second length L12, and a third length so as to be longer than in the case of the GUI 11. The length L13 of may be set.

According to this, as in the change process of lengthening the length of each gesture J1 to J3 so that the larger the size of one selection target is, the control unit 40 has the number of selection targets included in the GUI. The length of each gesture J1 to J3 is lengthened so that the smaller the length, the longer the length. Therefore, the user can feel the increase in the frictional force on the finger at an early stage after the finger touches the area corresponding to the selection targets 112 and 113 on the touch pad 30. As a result, the accuracy of guiding the finger to the position on the touch pad 30 corresponding to the position to be stopped on the GUI 111 is improved, and the user can easily input to the touch sensor 31 with a gesture of the intended length. be able to. On the other hand, since the number of selection targets included in the GUI 11 is larger than that of the GUI 111, the control unit 40 has a first length L1, a second length L2, and a second length so as to be shorter than the case of the GUI 111. Set the length L3 of 3. Therefore, the user can feel the increase in the frictional force on the finger separately for each of a large number of selection targets. As a result, the accuracy of guiding the finger to the position on the touch pad 30 corresponding to the position to be stopped on the GUI 11 is improved, and the user can easily input to the touch sensor 31 with a gesture of the intended length. Can be done.

Further, the control unit 40 may change the first length L1, the second length L2, and the third length L3 so that the wider the interval between the plurality of selection targets is, the longer the distance is. That is, since the interval of the selection target included in the GUI 111 is wider than that of the GUI 11, the control unit 40 has a first length L11, a second length L12, and a third length so as to be longer than in the case of the GUI 11. The length L13 of may be set.

According to this, the length of each gesture J1 to J3 is lengthened so that the wider the interval between the plurality of selection targets is, the longer the distance is. Therefore, the user can feel the increase in the frictional force on the finger at an early stage after the finger moved by a long distance touches the region corresponding to the selection target 112 or 113 on the touch pad 30. As a result, the accuracy of guiding the finger to the position on the touch pad 30 corresponding to the position to be stopped on the GUI 111 is improved, and the user can easily input to the touch sensor 31 with a gesture of the intended length. be able to.

In the example of FIG. 18, the control unit 40 changes the first length, the second length, and the third length based on at least one of the size, number, and interval of the selection target. An example is shown, but these may be combined. In the case of combination, for example, the control unit 40 sets the coefficient for the length of each of the reference gestures J1 to J3 to a larger value as the size of the selection target is larger, and a larger value as the number of selection targets included in the GUI is smaller. In addition, the length of each gesture is added to the length obtained by multiplying the calculated coefficient of 2 or more by the length of the reference gesture by setting a larger value as the interval of the selection target included in the GUI is wider. You may decide. For example, the control unit 40 may be set to a coefficient larger than 1 when it is longer than the reference length, and may be set to a coefficient smaller than 1 when it is shorter than the reference length.

(4)
In the above embodiment, the control unit 40 has a first length L1, a second length L2, and a third length L2 based on the moving direction of the operating body 20 (finger) to the operating surface 31a of the touch sensor 31. The length L3 may be changed.

A specific example in this case will be described with reference to FIGS. 19 and 20. 19 and 20 are diagrams for explaining another example of the input method to the GUI. 19 and 20 are four selection targets for selecting the execution of the application that controls the operation of the navigation, radio, TV, and air conditioner devices in the GUI 121 displayed on the display 50 as compared with FIG. Includes 122, 123, 124, 125. That is, the GUI 121 is a menu screen. The selection targets 122 to 125 included in the GUI 121 are arranged side by side in at least two different directions, for example. For example, the selection target 122 and the selection target 123 are arranged in the horizontal direction, and the selection target 122 and the selection target 124 are arranged in the vertical direction. Further, the selection target 122 and the selection target 125 are arranged in an oblique direction.

In this case, it is assumed that the control unit 40 can accept gestures in different directions.

First, consider the case where a gesture in the first direction is accepted. The first direction is, for example, the right direction in FIGS. 19 and 20. As shown in FIG. 19, the first gesture J1 in the first direction is a touch pad corresponding to the selection target 123 in order to select the selection target 123 from the initial position P31 on the touch pad 30 corresponding to the selection target 122. It is a gesture toward the position P34 on the 30th. In this case, for example, the control unit 40 sets the first length L21 as the first length for specifying the first gesture J1 in the first direction, and the second for specifying the second gesture J2. The second length L22 is set as the length of, and the third length L23 is set as the third length for specifying the third gesture J3.

As a result, the input end position P32 of the second gesture J2 is set to a position separated from the initial position P31 by the second length L22 in the first direction (right direction in FIG. 19). Similarly, the position of the input end of the third gesture J3 is set to a position separated from the initial position P31 by the third length L23 in the first direction.

Next, consider the case where the gesture in the second direction is accepted. The second direction is, for example, the diagonally downward right direction in FIGS. 19 and 20. As shown in FIG. 20, the first gesture J1 in the second direction is a touch pad corresponding to the selection target 125 in order to select the selection target 125 from the initial position P31 on the touch pad 30 corresponding to the selection target 122. It is a gesture toward the position P37 on 30. In this case, for example, the control unit 40 sets a first length L31 longer than the first length L21 as the first length for specifying the first gesture J1 in the second direction, and the second A second length L32, which is longer than the second length L22, is set as the second length for specifying the gesture J2, and a third length for specifying the third gesture J3 is set. A third length L33, which is longer than the length L23, is set.

As a result, the input end position P35 of the second gesture J2 is set to a position separated by the second length L32 from the initial position P31 in the second direction (diagonally downward to the right in FIG. 20). Similarly, the position of the input end of the third gesture J3 is set to a position separated from the initial position P31 by the third length L33 in the second direction.

For example, in the square selection targets 122 to 125, when the finger moves from the diagonal direction to the selection target 125, the finger moves to each selection target 122 to 125 from the horizontal direction or the vertical direction, as compared with the case where the finger moves to each selection target 122. The distance from hanging to 125 to the center becomes longer. Therefore, the control unit 40 changes the first to third lengths according to the direction of the gesture, that is, the direction of movement of the finger. That is, the control unit 40 is changed so that the first to third lengths are longer when the finger movement direction is the oblique direction than when the finger moves in the horizontal direction or the vertical direction.

According to this, it is possible to feel an increase in the frictional force on the finger at an early stage after the finger touches the area corresponding to the selection target on the touch pad 30. As a result, the accuracy of guiding the finger to the position on the touch pad 30 corresponding to the position to be stopped on the GUI 121 is improved, and the user can easily input to the touch sensor 31 by the gesture of the intended length. Can be done.

Further, the control unit 40 has, for example, because the distance between the selection target 122 and the selection target 125 adjacent to each other in the second direction is wider than the distance between the selection target 122 and the selection target 123 adjacent to each other in the first direction. The above processing may be performed. As described above, the length for specifying each gesture may be set to a different length depending on the arrangement direction of the selection target.

In each of the above embodiments, each component may be configured by dedicated hardware or may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory. Here, the software that realizes the input device and the like of each of the above embodiments is the following program.

That is, this program includes a touch sensor that detects a touch position on the operation surface by the operating body, a vibration element that presents a tactile sensation to the operation surface by driving in an ultrasonic band, and the touch sensor and the vibration element. An input method executed by an input device including an electrically connected control unit, wherein the control unit accepts an input to the touch sensor by a first gesture in a predetermined direction as a first input. When the touch sensor receives a second gesture having a second length shorter than the first length of the first gesture in the predetermined direction from the initial position of the first gesture, the driving of the vibrating element is started. When the touch sensor receives a third gesture having a third length that is longer than the second length and shorter than the first length in the predetermined direction from the initial position, the vibrating element Have the computer execute the input method to stop the drive.

Although the input device and the input method according to one or more aspects of the present invention have been described above based on the embodiments, the present invention is not limited to the embodiments. As long as it does not deviate from the gist of the present invention, one or more of the present embodiments may be modified by those skilled in the art, or may be constructed by combining components in different embodiments. It may be included within the scope of the embodiment.

The present invention is useful as an input device or the like that can easily input to a touch sensor as intended by the user.

1 Automobile 10 Input device 11, 111, 121 GUI
12, 14a, 14b, 15, 16a, 16b, 19a-19c, 112, 113, 122-125 Selection target 13 Display bar 17 Clock display 20 Operation unit 30 Touch pad 31 Touch sensor 31a Operation surface 32 Pressure sensor 33 Vibration element 40 Control unit 50 Display 60 Seat 70 Steering 71 Rim 72 Spoke 73 Horn switch cover 80 Speaker 90 Shift lever P1, P21, P31 Initial position P2 to P4, P11 to P14, P22 to P24, P32 to P37 Position R1 First input range R2 2nd input range V1, V11, V12 Drive voltage

Claims (9)

A touch sensor that detects the touch position on the operation surface by the operating body, and
A vibrating element that presents a tactile sensation to the operation surface by driving in the ultrasonic band,
A control unit electrically connected to the touch sensor and the vibrating element,
A load sensor provided on the touch sensor and detecting a touch load on the touch sensor is provided.
The control unit
The input to the touch sensor by the first gesture in the predetermined direction is accepted as the first input.
When the touch sensor receives a second gesture having a second length shorter than the first length of the first gesture in the predetermined direction from the initial position of the first gesture, the driving of the vibrating element is started. ,
When the touch sensor receives a third gesture having a third length that is longer than the second length and shorter than the first length in the predetermined direction from the initial position, the vibration element is driven. Is stopped , and the input by the fourth gesture of the fourth length exceeding the first length in the predetermined direction from the initial position is accepted as the second input different from the first input.
(I) The moving speed of the operating body in the second gesture was calculated using the change in the touch position per unit time detected by the touch sensor, and (ii) was calculated in driving the vibrating element. The faster the moving speed, the smaller the driving voltage, and the smaller the touch load obtained from the load sensor in the second gesture, the smaller the driving voltage, which is applied to the vibrating element when driving the vibrating element. The first ratio to the reference drive voltage is calculated using the first relationship in which the drive voltage decreases at a constant decrease rate with respect to the increase in the moving speed, and the drive voltage is constant with respect to the decrease in the touch load. The drive is calculated by calculating the third ratio to the reference drive voltage using the third relationship that decreases with the decrease rate of, and multiplying the reference drive voltage by the first ratio and the third ratio. The voltage is determined, and the vibrating element is driven by a drive voltage corresponding to the moving speed in the first relationship and corresponding to the touch load in the third relationship.
Input device. A touch sensor that detects the touch position on the operation surface by the operating body, and
A vibrating element that presents a tactile sensation to the operation surface by driving in the ultrasonic band,
A control unit electrically connected to the touch sensor and the vibrating element,
A load sensor provided on the touch sensor and detecting a touch load on the touch sensor is provided.
The control unit
The input to the touch sensor by the first gesture in the predetermined direction is accepted as the first input.
When the touch sensor receives a second gesture having a second length shorter than the first length of the first gesture in the predetermined direction from the initial position of the first gesture, the driving of the vibrating element is started. ,
When the touch sensor receives a third gesture having a third length that is longer than the second length and shorter than the first length in the predetermined direction from the initial position, the vibration element is driven. Is stopped, and the input by the fourth gesture of the fourth length exceeding the first length in the predetermined direction from the initial position is accepted as the second input different from the first input.
(I) The moving speed of the operating body in the second gesture was calculated using the change in the touch position per unit time detected by the touch sensor, and (ii) was calculated in driving the vibrating element. The faster the moving speed, the smaller the driving voltage, and the smaller the touch load obtained from the load sensor in the second gesture, the smaller the driving voltage, and the moving speed increases when the vibrating element is driven. The second ratio to the reference drive voltage is calculated using the second relationship in which the drive voltage applied to the vibrating element decreases at a decrease rate that becomes smaller with respect to the increase in the moving speed, and the touch load is increased. The fourth ratio to the reference drive voltage is calculated using the fourth relationship in which the drive voltage applied to the vibrating element decreases at a reduction rate that becomes smaller with respect to the decrease in the touch load as the voltage decreases. The drive voltage is determined by multiplying the reference drive voltage by the second ratio and the fourth ratio, corresponding to the movement speed in the second relationship, and said in the fourth relationship. Drive the vibrating element with a drive voltage corresponding to the touch load.
Input device. The control unit further calculates (i) the moving speed of the operating body in the second gesture using the change in the touch position per unit time detected by the touch sensor, and (ii) the vibration. The input device according to claim 1 or 2, wherein in driving the element, the vibrating element is driven with a smaller driving voltage as the calculated moving speed is faster. moreover,
A display unit electrically connected to the control unit is provided.
The control unit (i) selectively displays one UI among a plurality of UIs on the display unit, and (ii) the first UI according to the one UI displayed on the display unit. One of claims 1 to 3 for changing the first length, the second length, and the third length for identifying the gesture, the second gesture, and the third gesture, respectively. The input device described in. Each of the plurality of UIs includes a plurality of selection targets.
The control unit has the size of one of the plurality of selection targets and the number of the plurality of selection targets for the plurality of selection targets included in the one UI displayed on the display unit. The input device according to claim 4 , wherein the first length, the second length, and the third length are changed based on at least one of the intervals of the plurality of selection objects. The fifth aspect of the present invention, wherein the control unit changes the first length, the second length, and the third length so that the larger the size of the one selection target is, the longer the control unit is. Input device. The input according to claim 5 , wherein the control unit changes the first length, the second length, and the third length so that the number of the plurality of selection targets becomes shorter. Device. The input according to claim 5 , wherein the control unit changes the first length, the second length, and the third length so that the wider the interval between the plurality of selection targets is, the longer the distance is. Device. moreover,
A display unit electrically connected to the control unit is provided.
The control unit (i) causes the display unit to display a UI including a plurality of selection targets arranged side by side in at least two different directions, and (ii) displays the operation body of the touch sensor on the operation surface. The input device according to any one of claims 1 to 3 , wherein the first length, the second length, and the third length are changed based on the moving direction.

Images