WO2013046670A1 - 触感呈示装置 - Google Patents
触感呈示装置 Download PDFInfo
- Publication number
- WO2013046670A1 WO2013046670A1 PCT/JP2012/006155 JP2012006155W WO2013046670A1 WO 2013046670 A1 WO2013046670 A1 WO 2013046670A1 JP 2012006155 W JP2012006155 W JP 2012006155W WO 2013046670 A1 WO2013046670 A1 WO 2013046670A1
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- WIPO (PCT)
- Prior art keywords
- input mode
- tactile sensation
- touch sensor
- unit
- battery
- Prior art date
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
Definitions
- the present invention relates to an apparatus that detects an operation input to a touch sensor and presents a tactile sensation.
- an input device including a touch sensor such as a touch panel or a touch switch as an input device such as an operation unit or a switch that detects an operation input by a user.
- input devices equipped with touch sensors are widely used in information devices such as calculators and ticket machines, household appliances such as microwave ovens, televisions, and lighting equipment, and industrial equipment (FA devices). .
- any type of touch sensor detects contact with a finger or a stylus pen, and the touch sensor itself does not physically move like a mechanical push button switch even when touched. .
- the display mode may be changed by changing the display color of an input object (hereinafter simply referred to as “object”) such as an input button displayed on the display unit corresponding to the input position.
- object an input object
- the feedback method that works on hearing is difficult to confirm in a noisy environment and cannot be used when the device in use is in a silent mode. Also, in the case of a feedback method that works visually, if the size of the object displayed on the display unit is small, especially when inputting with the finger, the object is hidden under the finger and the display mode change cannot be confirmed There is.
- vibration can be transmitted to an operator's fingertip or the like when an operation input to the touch sensor is detected. Therefore, an operator who performs input using such an input device can recognize that the operation input performed on the touch sensor is detected by the input device.
- vibration does not occur even if there is contact with a touch sensor at a position where no object such as a key or button exists, but if there is contact with a touch sensor at a position where an object such as a key or button exists, vibration is generated. A tactile sensation can be presented.
- Patent Document 1 and Patent Document 2 merely vibrate the touch sensor according to the contact when the touch sensor detects the contact. For this reason, in particular, when a button switch such as a mechanical push button switch (push button switch) is drawn on the touch sensor, the touch sensor can be touched only by lightly touching (touching) a finger. It will be presented. Accordingly, since the operator reacts only by performing a light touching operation (touch) before the operator presses (pushes) the touch sensor, there is a possibility that an erroneous operation is induced. In addition, even if the operator does not intend to push the drawn button switch (even if force is not applied), a tactile sensation is presented in response to a light touch operation (touch) before pushing the touch sensor. As a result, the operator feels uncomfortable.
- a button switch such as a mechanical push button switch (push button switch)
- a tactile sensation hereinafter referred to as a click tactile sensation
- release the operator feels that the pressed switch returns to the original non-pressed state in the process of weakening the applied pressing force (hereinafter referred to as release). Expect to be presented).
- release the operator expects that no click feeling or release tactile sensation will be presented even if the pressing position is touched or traced with a very weak pressing force.
- the applicant of the present application provides an input device that can present a tactile sensation as if a key configured by a mechanical switch is operated when detecting a slide input using a touch sensor.
- Invented and already filed a patent application with the Japan Patent Office Japanese Patent Laid-Open No. 2011-048685.
- the input device includes a pressure detection unit that detects pressure on the touch surface of the touch sensor, so that data based on pressure detected by the pressure detection unit (for example, a voltage value detected by the piezoelectric element) has a predetermined reference.
- the tactile sensation providing unit presents a tactile sensation in a satisfied state, that is, in a state where the touch sensor is pressed. Therefore, this input device can prevent tactile sensation even when an operation input by a light touch unintended by the operator is detected. Furthermore, since this input device presents a tactile sensation in a state where pressure is given to the operator, a realistic tactile sensation as presented when operating an actual push button switch, which could not be presented by a conventional device. Can be presented.
- the above-described input device has a remarkable effect that a realistic tactile sensation can be presented, since a press detection unit is added, electric power for detecting a press is required. Furthermore, since this input device also has a tactile sensation providing unit, it requires electric power to drive it and present a tactile sensation.
- the electric power for activating the pressure detection unit when detecting the pressure can be set so as not to increase as much as the standby power.
- the tactile sensation providing unit presents a tactile sensation, power is consumed every time the operator's operation input is detected and the tactile sensation is presented as long as the tactile sensation providing unit operates in the input mode for presenting the tactile sensation.
- the input device can receive power supply from the outside, even if the power consumption increases somewhat, there is no particular problem from the viewpoint of ecology.
- the power consumption of the battery is consumed by presenting a number of tactile sensations in order to improve the operational feeling, and the operating time of the entire terminal is shortened. It can also be considered.
- since it is normal for an operator not to know how much power is consumed by presenting tactile sensation it is easy to predict how much the remaining battery level will be affected by presenting tactile sensation is not. Even in such a situation, when the remaining battery level is low, the operator generally wants to give priority to the operation of the terminal body to be operated over the operation feeling due to the tactile sensation. It is thought that.
- an object of the present invention made in view of such circumstances is to provide a tactile sensation presentation device that can balance operation time by detecting operation input to a touch sensor and presenting a realistic tactile sensation. There is to do.
- the invention of the tactile sensation providing apparatus is as follows: A touch sensor; A pressure detection unit for detecting pressure on the touch surface of the touch sensor; A tactile sensation providing unit that vibrates the touch surface; A battery information acquisition unit for acquiring battery information; Data based on a first input mode (touch panel input mode) in which a predetermined process is executed when the touch sensor detects a contact, or a pressure detected by the pressure detection unit in a state where the touch sensor detects a contact When a predetermined condition is satisfied, a second input mode (haptic input mode) that controls the tactile sensation providing unit to execute a predetermined process so as to present a tactile sensation with respect to a pressing target that is pressing the touch surface. ), And a control unit that controls the switchable, The control unit switches between the first input mode (touch panel input mode) and the second input mode (haptic input mode) based on the battery information acquired by the battery information acquisition unit. It is something to control.
- the invention according to the second aspect is the tactile sensation providing apparatus according to the first aspect,
- the control unit determines that the remaining amount of the battery does not reach a predetermined threshold value during operation in the second input mode (haptic input mode)
- the control unit sets the second input mode to the first input mode. It is controlled to switch to the mode (touch panel input mode).
- the invention according to a third aspect is the tactile sensation providing apparatus according to the first aspect,
- the control unit determines that the remaining amount of the battery satisfies a predetermined threshold during operation in the first input mode (touch panel input mode)
- the control unit sets the first input mode to the second input mode. It controls to switch to (haptic input mode).
- the invention according to a fourth aspect is the tactile sensation providing apparatus according to any one of the first to third aspects.
- a display unit; The control unit controls to display on the display unit that the switching between the first input mode and the second input mode has been performed.
- FIG. 1 It is a block diagram which shows schematic structure of the tactile sense presentation apparatus which concerns on embodiment of this invention. It is a figure which shows an example of the mounting structure of the tactile sense presentation apparatus which concerns on embodiment of this invention. It is a flowchart explaining the process at the time of detecting operation input in the touchscreen input mode by embodiment of this invention. It is a flowchart explaining the process at the time of detecting operation input in the haptic input mode by embodiment of this invention. It is a flowchart explaining the process in the case of starting detection of the operation input in a touch panel input mode or a haptic input mode in the tactile sensation presentation apparatus which concerns on embodiment of this invention. It is a flowchart explaining the setting process of the input mode according to the battery residual amount by this Embodiment. It is a figure which shows the example of a mode that the remaining charge of a rechargeable battery reduces, when operating a tactile sense presentation apparatus with a general rechargeable battery. It is a flowchart explaining the detail of the input mode switching process shown in FIG.
- FIG. 1 is a functional block diagram showing a schematic configuration of a tactile sensation providing apparatus according to an embodiment of the present invention.
- the tactile sensation providing apparatus according to the present embodiment includes, for example, an input device used when an operator inputs characters or numbers on a portable terminal, an ATM installed in a bank, an input device used in a ticket vending machine installed in a station, etc.
- the touch sensor can be applied to any input device as long as it detects contact by the operator.
- the tactile sensation providing apparatus 1 includes a touch sensor 11, a press detection unit 12, a tactile sensation providing unit 13, a display unit 14, a control unit 15, and a battery 16.
- the touch sensor 11 is usually disposed in front of the display unit 14 and makes contact with an object such as a key or button (hereinafter simply referred to as “keys”) displayed on the display unit 14 by an operator's finger or stylus. , It is detected by the touch surface of the corresponding touch sensor 11.
- the touch sensor 11 is configured by a known method such as a resistance film method, a capacitance method, and an optical method. Note that it is not essential for the operator's finger or the like to physically touch the touch sensor 11 when the touch sensor 11 detects the contact.
- the touch sensor 11 when the touch sensor 11 is an optical type, the touch sensor 11 detects a position where the infrared rays on the touch sensor 11 are blocked by a finger or the like, so that the operator's finger or the like does not touch the touch sensor 11. It is unnecessary.
- the press detection unit 12 detects a press when the user performs an operation on the touch surface of the touch sensor 11, for example, physical or electrical characteristics (distortion, resistance, voltage, etc.) according to the press. It is configured using an element such as a strain gauge sensor or a piezoelectric element that changes.
- the press detection unit 12 is configured using, for example, a piezoelectric element or the like, the piezoelectric element of the press detection unit 12 has a magnitude (or load (force) of a load (force) related to the press on the touch sensor 11.
- the magnitude of the voltage voltage (voltage value (hereinafter referred to as data based on pressing)), which is an electrical characteristic, changes.
- the control part 15 is controlled to perform a predetermined process, for example based on an application, etc., when the data based on a press are more than a predetermined threshold value.
- the control unit 15 notifies the control unit 15 of the data based on the press by the press detection unit 12 or detects the data based on the press of the press detection unit 12 based on the press. Get the data. That is, the control unit 15 acquires data based on the pressure applied to the touch sensor 11 from the pressure detection unit 12. Note that the data based on the pressure may be the magnitude of the load applied to the pressure, the power value, the resistance value, or the like instead of the voltage value.
- the press detection unit 12 may measure a change in the gap between the touch sensor 11 and the display unit 14 that occurs when the touch sensor 11 is pressed by the user.
- the data based on the pressure corresponds to the change value of the gap.
- the press detection part 12 may measure the change of the clearance gap between the touch sensor 11 and other components, for example, a circuit board.
- the press detection part 12 can be comprised according to the contact detection system in the touch sensor 11.
- FIG. when the touch sensor 11 is a resistive film type, the magnitude of the resistance according to the size of the contact area is associated with the load (force) of pressing against the touch surface of the touch panel, thereby allowing a strain gauge sensor or a piezoelectric element. It is possible to configure without using the above.
- the touch sensor 11 is a capacitance type, it is configured without using a strain gauge sensor or a piezoelectric element by associating the size of the capacitance with a load (force) of pressing against the touch panel. Can do.
- the tactile sensation providing unit 13 vibrates the touch surface of the touch sensor 11.
- the tactile sensation providing unit 13 is configured using, for example, a piezoelectric element.
- the tactile sensation providing unit 13 can transmit vibration to the object in contact with the touch sensor 11.
- the tactile sensation providing unit 13 can also be configured to indirectly vibrate the touch surface of the touch sensor 11 by transmitting vibration from a vibration motor (eccentric motor) or the like to the tactile sensation providing apparatus 1.
- a vibration motor eccentric motor
- the tactile sensation providing unit 13 vibrates the tactile sensation providing unit 13 in accordance with the press detected by the press detecting unit 12 (press on the touch sensor 11), thereby generating vibration and presenting a tactile sensation to the user's finger or the like. It can be sensuously understood that the user who is pressing the touch sensor 11 has operated.
- the press detection part 12 can also be comprised integrally with the tactile sense presentation part 13. FIG.
- the press detection unit 12 and the tactile sensation providing unit 13 are configured using a piezoelectric element, it is also possible to configure a press detection unit / tactile sensation providing unit by using the piezoelectric element in common. This is because the piezoelectric element generates a voltage when pressure is applied and deforms when the voltage is applied.
- the tactile sensation providing unit 13 is configured such that when the voltage level (voltage value (data)) of the piezoelectric element that also serves as the pressure detecting unit 12 satisfies a predetermined standard (when the touch sensor 11 is pressed), Vibration can also be generated by driving the element.
- the voltage level (voltage value (data)) of the piezoelectric element satisfies a predetermined reference
- the voltage value (data) may reach a predetermined reference value, It may be when the value (data) exceeds a predetermined reference value or when a voltage value (data) equal to the predetermined reference value is detected.
- the display unit 14 displays an object such as an input button such as a push button switch (push-type button switch), and is configured by, for example, a liquid crystal display (LCD) or an organic EL display.
- an input button such as a push button switch (push-type button switch)
- LCD liquid crystal display
- organic EL display In addition to performing display corresponding to each application, the display unit 14 draws and displays a user interface including various keys and buttons for detecting the operation of the operator on the touch sensor 11 in a predetermined display area. .
- the control unit 15 controls and manages the operation of the tactile sensation providing apparatus 1 as a whole.
- the battery 16 supplies power for operating the entire tactile sensation providing apparatus 1.
- the battery 16 can store electric power by charging in advance.
- the battery 16 detects the position of contact by the operator with the touch sensor 11, the pressure detection unit 12 detects the pressure on the touch surface of the touch sensor 11, and the tactile sensation providing unit 13 is predetermined. A case where power necessary for presenting the tactile sensation is supplied will be mainly described.
- the control unit 15 includes a battery information acquisition unit 17 therein.
- the battery information acquisition unit 17 can acquire information related to the remaining amount of the battery 16 by detecting, for example, a voltage of the battery 16.
- FIG. 2 shows an example of the mounting structure of the tactile sensation providing apparatus 1 shown in FIG. 1, FIG. 2 (a) is a cross-sectional view of the main part, and FIG. 2 (b) is a plan view of the main part.
- the display unit 14 is housed and held in the housing 21.
- the touch sensor 11 is held on the display unit 14 via an insulator 22 made of an elastic member.
- the display unit 14 and the touch sensor 11 are rectangular in plan view.
- the touch sensor 11 is held on the display unit 14 via the insulators 22 arranged at the four corners deviated from the display area A of the display unit 14 indicated by virtual lines in FIG. Is done.
- the casing 21 is provided with an upper cover 23 so as to cover the surface area of the touch sensor 11 deviated from the display area of the display unit 14, and an elastic member is provided between the upper cover 23 and the touch sensor 11.
- An insulator 24 is provided.
- the front surface member having the touch surface 11a is made of, for example, a transparent film or glass, and the back surface member is made of glass or acrylic.
- the touch sensor 11 has a structure in which when the touch surface 11a is pressed, the pressed portion is slightly bent (distorted) according to the pressing force, or the structure itself is bent slightly.
- a strain gauge sensor 31 for detecting a load (pressing force) applied to the touch sensor 11 is provided in the vicinity of each side covered with the upper cover 23 by adhesion or the like. Further, on the back surface of the touch sensor 11, a piezoelectric vibrator 32 for vibrating the touch sensor 11 is provided by adhesion or the like in the vicinity of two opposing sides. That is, in the tactile sensation providing apparatus shown in FIG. 2, the press detection unit 12 shown in FIG. 1 is configured using four strain gauge sensors 31, and the tactile sensation providing unit 13 is configured using two piezoelectric vibrators 32. Yes. The tactile sensation providing unit 13 vibrates the touch surface 11 a by vibrating the touch sensor 11. In FIG. 2B, the casing 21, the upper cover 23, and the insulator 24 shown in FIG. 2A are not shown.
- a conventional input mode in which a predetermined process is executed by detecting contact using only the touch sensor 11 is referred to as a “touch panel input mode”.
- an input mode for executing a predetermined process by detecting both a touch and a predetermined press by combining the functions of both the touch sensor 11 and the press detection unit 12 is referred to as “haptic input”. “Mode”.
- FIG. 3 is a flowchart for explaining processing when executing predetermined processing in the above-described “touch panel input mode”.
- the flowchart shown in FIG. 3 shows an operation of presenting a tactile sensation and performing a predetermined process when the tactile sensation providing apparatus 1 detects a contact and the contact is at a position corresponding to an object such as a key.
- an object such as a key is displayed on the display unit 14 of the tactile sensation providing apparatus 1 before detecting contact with the touch surface of the touch sensor 11.
- the object in the present embodiment can be an image that suggests to the operator a part for detecting an operation input. For example, an image representing a key or the like in which numbers and characters are drawn on the key top is displayed on the display unit 14 as an object image.
- the control unit 15 monitors the operation input to the touch sensor 11.
- the process illustrated in FIG. 3 starts from the point in time when contact by the operator is detected on the touch surface of the touch sensor 11.
- step S11 in a predetermined area on the touch sensor 11 corresponding to the area where the object is displayed on the display unit 14, the touch sensor 11 detects contact by a pressing target (pressed object) such as an operator's finger or stylus pen.
- the control unit 15 performs the processing from step S12 onward.
- the “predetermined area” is an area in the touch sensor 11 corresponding to a position where an object for detecting an operation input such as a key or a button is displayed on the display unit 14. Since this “predetermined area” is an area corresponding to a key or the like, hereinafter, it is simply referred to as “key area” as appropriate.
- the control unit 15 changes the display mode of the object corresponding to the position where the contact is detected, and displays it on the display unit 14 (step S12).
- the change in the display mode of the object performed in step S12 is, for example, an object drawing in which a key is depressed when a mechanical push button switch is pressed by an operator (hereinafter referred to as “key press display”). And the like.
- the display may be performed in such a manner as to emphasize the detection of the contact by the operator by changing the color or brightness of the object instantaneously. .
- step S13 After performing the key press display in step S12, the control unit 15 executes a predetermined process according to a preset procedure (step S13).
- the “predetermined process” in step S13 means a predetermined process assigned to the object that has detected contact. For example, when the object that detected contact is a character input key, the control unit 15 performs a process of outputting (displaying) the character. In addition, when the object whose contact is detected is an execution key for some function, the control unit 15 performs a process for starting the execution of the function.
- the processing in the touch panel input mode described above is performed by detecting contact by the operator in an input device including a normal touch sensor, notifying the operator that the contact has been detected by display or vibration, and the like. This can be performed in the same manner as a conventional process of performing a process related to contact.
- a predetermined process is executed in the “touch panel input mode”
- a process of presenting a tactile sensation by vibrating the tactile sensation providing unit 13 as described later is not performed. That is, in the “touch panel input mode”, no tactile sensation is presented even when an operation input is detected.
- FIG. 4 is a flowchart for explaining a process when a predetermined process is executed in the “haptic input mode” described above.
- the flowchart shown in FIG. 4 is based on the pressure detected by the pressure detection unit 12 without performing predetermined processing yet when the tactile sensation providing device 1 detects the contact, and the contact is a position corresponding to a key or the like.
- an operation of presenting a tactile sensation and performing a predetermined process is shown.
- an object such as a key is displayed on the display unit 14 of the tactile sensation providing apparatus 1 before detecting contact with the touch surface of the touch sensor 11.
- the control unit 15 monitors the operation input to the touch sensor 11 and detects it by the press detection unit 12. Monitor data based on pressed pressure.
- the process illustrated in FIG. 4 also starts from the point in time when contact by the operator is detected on the touch surface of the touch sensor 11.
- step S21 when the touch sensor 11 detects a contact by a pressing target (pressed object) such as an operator's finger or stylus pen in the key area, the control unit 15 performs the processing in step S22 and subsequent steps.
- a pressing target pressed object
- the control unit 15 performs the processing in step S22 and subsequent steps.
- step S22 the control unit 15 determines whether or not the data based on the pressure detected by the pressure detection unit 12 satisfies a predetermined standard while increasing due to the pressing of the touch sensor 11 by the operator.
- the press detection part 12 detects a load from the average value of the output of the four strain gauge sensors 31, for example.
- the fact that the data based on the pressure satisfies a predetermined standard corresponds to a value such as 1N (Newton) or a voltage value corresponding to a load based on the pressure when the operator performs a normal pressing operation. It is preferable that data is set in advance and the setting can be changed thereafter.
- this predetermined standard is used to prevent the operator from starting a predetermined process when the operator touches lightly unintentionally, and to give the operator a pressure sensation for real touch feeling described later. Therefore, an excessively low reference is not set in consideration of the pressure at the time of the pressure input based on the operator's intention (for example, an average value). Even if contact with the key area of the touch sensor 11 is detected in step S21, if the data based on the pressure detected by the pressure detection unit 12 in step S22 does not satisfy the predetermined standard, the control unit 15 proceeds to step S21. Return and continue processing.
- control unit 15 changes the display mode of the object corresponding to the position where contact is detected and displays it on the display unit 14 (step S23). ).
- the change of the object display mode performed in step S23 can be performed in the same manner as in step S12 described above.
- the control unit 15 drives the tactile sensation providing unit 13 with a predetermined drive signal, and vibrates the touch sensor 11 with a predetermined vibration pattern set in advance to present the tactile sensation (Ste S24).
- the tactile sensation providing unit 13 drives the two piezoelectric vibrators 32 in the same phase, for example. In this way, in the “haptic input mode”, the tactile sensation providing apparatus 1 detects an operation input and starts a predetermined process by a push operation based on the operator's intention.
- the tactile sensation that the tactile sensation providing unit 13 presents to the object to be pressed in step S24 is preferably the click tactile sensation described above.
- the tactile sensation providing apparatus 1 performs the following operation to stimulate the tactile sensation while stimulating the operator's pressure sensation. That is, the control unit 15 stimulates the pressure sense until the data based on the pressure applied to the touch sensor 11 satisfies a standard for presenting a tactile sensation (for example, a standard corresponding to data based on a 1N pressure). When the data based on the press satisfies the reference, the control unit 15 drives the piezoelectric vibrator 32 with a predetermined drive signal to vibrate the touch surface 11a to stimulate the sense of touch.
- the tactile sensation providing apparatus 1 can present to the operator a click tactile sensation similar to that obtained when a button switch such as a push button switch (push button switch) is pressed. Therefore, even if the push button switch is drawn on the touch sensor, the operator inputs an operation input to the touch sensor 11 while obtaining a realistic click feeling similar to that when the actual push button switch is operated. You can do it, so you don't feel uncomfortable. In addition, since the operation input can be performed in conjunction with the consciousness of “pressing” the touch sensor 11, an input error due to simple contact can be prevented.
- the driving signal when presenting the click sensation described above that is, the constant frequency, period (wavelength), waveform, and amplitude for stimulating the sense of touch can be appropriately set according to the click sensation presented.
- the tactile sensation providing unit 13 is driven by a drive signal for one cycle including a sine wave having a constant frequency of 170 Hz.
- the tactile sensation providing unit 13 is driven by such a drive signal, and the touch surface 11a is vibrated by about 15 ⁇ m in a state where the data based on the press satisfies a predetermined standard. Thereby, it is possible to present the operator with a realistic click feeling as if the user had clicked on an actual key.
- step S25 the control unit 15 executes a predetermined process according to a preset procedure.
- the “predetermined process” in step S25 is the same as the predetermined process described in step S13.
- the processing in the haptic input mode described above is different from that in an input device having a normal touch sensor, and is pressed when the data based on the press satisfies a predetermined standard in a state in which contact by the operator is detected. Present a realistic tactile sensation as if the button switch was pressed.
- the tactile sensation providing apparatus 1 when the tactile sensation providing apparatus 1 is started up, such as when the tactile sensation providing apparatus 1 is turned on, the operator's operation input is performed according to one of the preset touch panel input mode or haptic input mode. A mode of detecting the will be described.
- the tactile sensation providing apparatus 1 according to the present embodiment executes processing corresponding to the detected operation input by detecting contact and / or press by the operator in the set touch panel input mode or haptic input mode. Can do.
- FIG. 5 is a flowchart for explaining processing when input detection is started in the touch panel input mode or the haptic input mode when the tactile sensation providing apparatus 1 is activated, such as when the power is turned on. In this way, the present process can be started when the tactile sensation providing apparatus 1 is activated, for example, when the power is turned on.
- the control unit 15 When the present process is started by turning on the power switch of the tactile sensation providing apparatus 1, the control unit 15 first activates the touch sensor 11, the press detection unit 12, and the tactile sensation presentation unit 13. Each functional unit is allowed to operate at any time (step S31). That is, the touch sensor 11 detects a contact by the operator, and makes a preparation for scanning the position where the contact is detected and notifying the control unit 15. In addition, the press detection unit 12 detects a press on the touch surface of the touch sensor 11 and makes preparations so that data based on the press can be transmitted to the control unit 15. Furthermore, the tactile sensation providing unit 13 makes preparations such that the touch surface of the touch sensor 11 can be vibrated at any time by being notified of control information from the control unit 15.
- step S31 the control unit 15 determines whether or not the touch sensor 11 has detected contact by the operator (step S32). That is, in step S32, it is determined whether or not any operation input by the operator has been made to the touch sensor 11.
- step S33 the control unit 15 determines whether or not the set input mode is a haptic input mode. Thereafter, when the set input mode is the haptic input mode, the input detection process by the haptic input mode described in FIG. 4 is performed (step S34). On the other hand, when the set input mode is the touch panel input mode, the input detection process by the touch panel input mode described in FIG. 3 is performed (step S35).
- the haptic input mode is continued even when the power consumption of the battery 16 related to the operation of the tactile sensation providing apparatus 1 progresses and the remaining amount of the battery 16 decreases. As a result, the power consumption of the battery 16 further proceeds. As the power consumption of the battery 16 progresses in this manner, it is assumed that the operation of the entire tactile sensation providing device 1 cannot be maintained soon because the remaining amount of the battery 16 is insufficient. Therefore, in the present embodiment, the input mode setting is changed according to the remaining battery level.
- FIG. 6 is a flowchart for explaining the input mode setting process according to the remaining battery level according to the present embodiment.
- the process shown in FIG. 6 describes a process that should be started after the execution of the process shown in FIG. 5 is completed.
- the battery information acquisition unit 17 of the control unit 15 detects information regarding the remaining amount of the battery 16 by detecting the voltage of the battery 16 or the like. Obtain (step S41).
- the control unit 15 determines whether or not the remaining amount of the battery 16 satisfies a predetermined threshold based on the acquired battery information (step S42).
- the “predetermined threshold value” of the remaining amount of the battery 16 is a value such as a voltage set while the power charged in the battery 16 is reduced by the power related to the operation of the tactile sensation providing apparatus 1. is there.
- FIG. 7 is a diagram showing an example of how the remaining amount of the rechargeable battery decreases when the tactile sensation providing apparatus 1 is operated by a general rechargeable battery (battery 16). Since the power of the battery 16 is consumed by continuing the operation of the tactile sensation providing apparatus 1, the curve shown in FIG. 7 gradually decreases.
- FIG. 7 shows a state in which the battery voltage decreases as an example.
- the “predetermined threshold value” of the remaining amount of the battery 16 in step S42 is based on a voltage value or the like that makes it impossible for the operation of the tactile sensation providing device 1 to be continued soon when the remaining amount of the battery 16 decreases further in the haptic input mode. Set in advance. For example, the voltage threshold Vth shown in FIG. 7 can be set as the “predetermined threshold” in step S42.
- the “predetermined threshold value” is a voltage value that can maintain the operation of the tactile sensation providing apparatus 1 for a certain period of time if an operation for presenting a tactile sensation is not performed in the haptic input mode (for example, in the touch panel input mode). It is preferable to set based on
- control unit 15 sets the input mode to “haptic input mode” (step S43) and executes the next input mode switching process (step S43). Step S44).
- FIG. 8 is a flowchart for explaining the details of the input mode switching process shown in step S44 of FIG.
- the control unit 15 determines whether or not the input mode set in the previous step (step S43) is different from the current input mode (step S51). Originally operating in the haptic input mode, when the set input mode is the haptic input mode, it is not necessary to switch the input mode, so the processing in FIG. 8 is terminated (No in step S51).
- step S43 determines whether or not the set input mode is a haptic input mode (step S52).
- step S53 since the haptic input mode is set in step S43, the control unit 15 activates the press detection unit 12 and the tactile sensation providing unit 13 (step S53). Furthermore, the control unit 15 displays on the display unit 14 that the input mode has been switched to the “haptic input mode” (step S54).
- step S44 in FIG. 6 When the input mode switching process (step S44 in FIG. 6) shown in FIG. 8 is completed, the control unit 15 performs the input detection process in the haptic input mode described in FIG. 4 in step S45 shown in FIG. When the remaining amount of the battery 16 remains equal to or greater than a predetermined threshold by the above processing, the operation input detection processing in the haptic input mode is performed.
- step S54 If it is displayed in step S54 that the mode has been switched to the “haptic input mode”, that is, after step S45 in FIG. 6, while the input mode setting process according to the remaining battery level is being performed according to the present embodiment, The control unit 15 returns to step S41 and continues the process (step S46).
- the setting process of the input mode according to the remaining battery level may be a setting that is always performed, or, for example, “balance mode”, etc. It is also possible to perform input mode setting processing according to the amount.
- the time for which the process is performed so that the process described in FIG. 6 is continued (step S46). Is controlled by a timer built in the control unit 15.
- step S42 when it is determined in step S42 that the remaining amount of the battery 16 does not satisfy the predetermined threshold, the control unit 15 sets the input mode to “touch panel input mode” (step S47), and performs the next input mode switching process. Is executed (step S48).
- step S48 the input mode switching process shown in FIG. 8 is performed.
- the control unit 15 determines whether or not the input mode set in the previous step (step S47) is different from the current input mode (step S51). Originally operating in the touch panel input mode, when the set input mode is the touch panel input mode, it is not necessary to switch the input mode, so the processing of FIG. 8 is terminated (No in step S51).
- step S47 determines whether or not the set input mode is the haptic input mode (step S52). ).
- the control unit 15 deactivates the press detection unit 12 and the tactile sensation providing unit 13 (step S55). Furthermore, the control unit 15 displays on the display unit 14 that the input mode has been switched to the “touch panel input mode” (step S56).
- step S48 in FIG. 6 the control unit 15 performs the input detection process in the touch panel input mode described in FIG. 3 in step S49 shown in FIG.
- the remaining amount of the battery 16 does not remain as much as a predetermined threshold by the processing as described above, the operation input detection processing in the touch panel input mode is performed.
- the haptic input mode is set to the touch panel input. Switch to mode.
- the tactile sensation providing apparatus 1 when the battery information acquisition unit 17 determines that the remaining amount satisfies a predetermined threshold due to the battery 16 being charged or the like while operating in the touch panel input mode.
- the touch panel input mode is switched to the haptic input mode. Accordingly, the tactile sensation providing apparatus 1 presents a realistic tactile sensation again when the battery has a sufficient remaining amount due to charging or the like from a state where the remaining amount of the battery has decreased.
- the touch panel input mode and the haptic input mode are switched according to the remaining battery level. Therefore, according to the present invention, it is possible to balance a realistic tactile sensation when detecting an operation input to the touch sensor and an operation time as an input device using a battery. For this reason, the operator can maintain the function as an input device to the maximum, without being particularly conscious, when the remaining battery level becomes low during operation input using the tactile sensation presentation device. Can be made. In addition, the operator can charge the battery when the remaining battery level is low, so that a realistic tactile sensation can be presented again when an operation input to the touch sensor is detected.
- the present invention is not limited to the above embodiment, and many variations or modifications are possible.
- a click feeling is presented, and the release feeling is not particularly mentioned.
- the release feeling can be presented.
- these click sensations and release sensations are different from each other, a tactile sensation closer to a real push button switch can be presented, but these click sensations and release sensations can be the same. .
- the tactile sensation providing apparatus 1 is used when touch is detected (touch panel input mode), or when data based on pressing satisfies a predetermined standard and presents a tactile sensation (haptic input mode).
- touch panel input mode touch panel input mode
- haptic input mode data based on pressing satisfies a predetermined standard
- An example of performing a predetermined process has been described.
- the presentation of tactile sensation and / or execution of the predetermined process is not performed when the data based on the detection of the contact or the pressure satisfies the predetermined standard, but the data based on the detection of the release of the contact or the data based on the pressure It may be performed when the predetermined standard is not satisfied.
- the battery information acquisition part 17 demonstrated the aspect which detects the voltage value etc. of the battery 16 continuously (according to the loop shown in FIG. 6), when the tactile sense presentation apparatus 1 is working.
- the battery information acquisition part 17 can also acquire the information regarding the remaining amount of the battery 16 by detecting the voltage value of the battery 16 etc. for every predetermined period. In this way, it can be expected that the operating time of the tactile sensation providing apparatus 1 is further increased.
- the tactile sensation providing unit in the above-described embodiment can be configured using an arbitrary number of piezoelectric vibrators, can be configured by providing a transparent piezoelectric element on the entire surface of the touch sensor, or can express vibrations that provide tactile sensation.
- the eccentric motor can be configured to rotate once in one cycle of the drive signal.
- the tactile sensation providing apparatus drives the tactile sensation providing unit when the data based on the pressure detected by the pressure detection unit satisfies a criterion for presenting the tactile sensation.
- the data based on the pressure detected by the pressure detection unit satisfies the standard for presenting the tactile sensation
- the data based on the pressure detected by the pressure detection unit reaches a reference value for presenting the tactile sensation.
- it may be when the data based on the press corresponding to the reference value for presenting the tactile sensation is detected by the press detection unit.
- the tactile sensation providing apparatus according to the present invention does not necessarily have such a configuration, and the touch sensor 11 and the display unit 14 may be separated from each other.
- the touch sensor 11 is arranged so as to overlap the upper surface of the display unit 14, the operator can easily recognize the correspondence between the displayed image and the generated vibration.
- the display unit 14 and the touch sensor 11 in the description of the present embodiment are configured by an integrated device, for example, by providing both functions of the display unit and the touch sensor (contact detection unit) on a common substrate. You may do it.
- a plurality of photoelectric conversion elements such as photodiodes are regularly arranged in a matrix electrode array of pixel electrodes included in the liquid crystal panel.
- This device displays an image with a liquid crystal panel structure, while reflecting the light of a backlight for liquid crystal display at the tip of a pen that touches and inputs a desired position on the surface of the panel. The reflected light is reflected by peripheral photoelectric conversion elements.
- the touch position can be detected by receiving the light.
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Abstract
Description
タッチセンサと、
前記タッチセンサのタッチ面に対する押圧を検出する押圧検出部と、
前記タッチ面を振動させる触感呈示部と、
バッテリの情報を取得するバッテリ情報取得部と、
前記タッチセンサが接触を検出すると所定の処理を実行する第1の入力モード(タッチパネル入力モード)、または、前記タッチセンサが接触を検出している状態で前記押圧検出部が検出する押圧に基づくデータが所定の基準を満たすと、前記タッチ面を押圧している押圧対象に対して触感を呈示するように前記触感呈示部を制御するとともに所定の処理を実行する第2の入力モード(ハプテッィク入力モード)、を切換可能に制御する制御部と、を備え、
前記制御部は、前記バッテリ情報取得部が取得した前記バッテリの情報に基づいて、前記第1の入力モード(タッチパネル入力モード)と、前記第2の入力モード(ハプテッィク入力モード)とを切り換えるように制御するものである。
前記制御部は、前記第2の入力モード(ハプテッィク入力モード)で動作中に、前記バッテリの残量が所定の閾値に満たなくなったと判定した場合、当該第2の入力モードを前記第1の入力モード(タッチパネル入力モード)に切り換えるように制御するものである。
前記制御部は、前記第1の入力モード(タッチパネル入力モード)で動作中に、前記バッテリの残量が所定の閾値を満たしたと判定した場合、当該第1の入力モードを前記第2の入力モード(ハプテッィク入力モード)に切り換えるように制御するものである。
表示部をさらに備え、
前記制御部は、前記第1の入力モードと前記第2の入力モードとの切り換えが行われた旨を前記表示部に表示するように制御するものである。
11a タッチ面
12 押圧検出部
13 触感呈示部
14 表示部
15 制御部
16 バッテリ
17 バッテリ情報取得部
21 筐体
22 インシュレータ
23 アッパカバー
24 インシュレータ
31 歪みゲージセンサ
32 圧電振動子
Claims (4)
- タッチセンサと、
前記タッチセンサのタッチ面に対する押圧を検出する押圧検出部と、
前記タッチ面を振動させる触感呈示部と、
バッテリの情報を取得するバッテリ情報取得部と、
前記タッチセンサが接触を検出すると所定の処理を実行する第1の入力モード、または、前記タッチセンサが接触を検出している状態で前記押圧検出部が検出する押圧に基づくデータが所定の基準を満たすと、前記タッチ面を押圧している押圧対象に対して触感を呈示するように前記触感呈示部を制御するとともに所定の処理を実行する第2の入力モード、を切換可能に制御する制御部と、を備え、
前記制御部は、前記バッテリ情報取得部が取得した前記バッテリの情報に基づいて、前記第1の入力モードと、前記第2の入力モードとを切り換えるように制御する、触感呈示装置。 - 前記制御部は、前記第2の入力モードで動作中に、前記バッテリの残量が所定の閾値に満たなくなったと判定した場合、当該第2の入力モードを前記第1の入力モードに切り換えるように制御する、請求項1に記載の触感呈示装置。
- 前記制御部は、前記第1の入力モードで動作中に、前記バッテリの残量が所定の閾値を満たしたと判定した場合、当該第1の入力モードを前記第2の入力モードに切り換えるように制御する、請求項1に記載の触感呈示装置。
- 表示部をさらに備え、
前記制御部は、前記第1の入力モードと前記第2の入力モードとの切り換えが行われた旨を前記表示部に表示するように制御する、請求項1ないし3の何れか1項に記載の触感呈示装置。
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