WO2010073597A1 - 入力装置 - Google Patents
入力装置 Download PDFInfo
- Publication number
- WO2010073597A1 WO2010073597A1 PCT/JP2009/007080 JP2009007080W WO2010073597A1 WO 2010073597 A1 WO2010073597 A1 WO 2010073597A1 JP 2009007080 W JP2009007080 W JP 2009007080W WO 2010073597 A1 WO2010073597 A1 WO 2010073597A1
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- Prior art keywords
- input
- load
- touch panel
- pressing
- unit
- 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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- 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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
- G06F3/04142—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position the force sensing means being located peripherally, e.g. disposed at the corners or at the side of a touch sensing plate
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- 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
Definitions
- the present invention relates to an input device including an input unit that receives an input by pressing.
- input devices that include a plate-like input unit that receives an input by pressing a touch panel, a touch switch, or the like as an input unit that receives an input operation by a user.
- input units such as a resistive film type and a capacitance type.
- any of these input units accepts input by pressing with a finger or a stylus pen, and the input unit itself is not displaced like a push button switch even when pressed.
- a press input is received and a sound is produced, or a display color of an input object such as an input button displayed on the display unit corresponding to the press area is displayed.
- an input operation can be confirmed by hearing or vision by changing the display mode such as changing.
- Patent Documents 1 and 2 simply generate a tactile sensation by vibration at the fingertip of the operator.
- the operator's fingertip touching the touch panel presents a tactile sensation such as “bull bull”.
- a “click” that is felt when operating a push button switch having a metal dome. It does not present a realistic click sensation.
- an input key of an information device such as a portable terminal such as a mobile phone, a calculator, a ticket vending machine, an input key of an operation unit in a home appliance such as a microwave oven or a television is configured with a touch panel, and the touch panel
- a portable terminal such as a mobile phone, a calculator, a ticket vending machine
- an input key of an operation unit in a home appliance such as a microwave oven or a television
- a certain load threshold is set, and the touch panel is displayed when the load threshold is reached while increasing the pressing load detected when the touch panel is pressed with a finger.
- An apparatus that not only vibrates but also vibrates the touch panel when the load threshold is reached while the pressing load detected when the finger is released from the touch panel decreases.
- the touch panel can be vibrated in accordance with each of the operation of pressing by the operator and the operation of releasing, the operation feeling suitable for the operator can be presented.
- the pressing load when the touch panel is pressed does not exceed the load threshold and is only detected to a value equal to the load threshold, the touch panel vibrates only when pressed and does not vibrate when released. Will feel uncomfortable.
- the touch panel vibrates only when pressed in one input operation, and the touch panel vibrates both when pressed and released in the next input operation. In some cases, the operator feels uncomfortable.
- an object of the present invention made in view of such a point is that when an operator operates a push-type input unit, a realistic click feeling similar to that when a push button switch is operated can be presented. Is to provide an input device capable of performing a continuous input operation (repetitive hitting) without a sense of incongruity.
- An input device for receiving an input by pressing; A load detection unit for detecting a pressing load on the input unit; A vibrating section for vibrating the input section; When the pressing load detected by the load detecting unit satisfies a predetermined standard for receiving an input to the input unit, the click load is presented to the pressing object pressing the input unit.
- a control unit for controlling the driving of the vibration unit so as to present a click feeling to the pressed object It is characterized by providing.
- the input unit vibrates, and then the pressing load on the input unit satisfies a lower standard than the predetermined standard for receiving an input. Then, the input unit vibrates.
- a realistic click tactile sensation similar to that when the push button switch is operated is presented to the operator, and the operator can perform a continuous input operation (continuous hitting) without a sense of incongruity.
- FIG. 5 It is a figure which shows the general load characteristic of a pushbutton switch. It is a figure which shows the sensory evaluation result at the time of operating the various pushbutton switches from which pressing load differs. It is a figure which shows the sensory evaluation result at the time of operating the various pushbutton switches from which a stroke differs. It is a figure which shows an example of the measurement result of the vibration which arises in a pushbutton when a pushbutton switch is operated. It is a block diagram which shows schematic structure of the input device which concerns on 1st Embodiment of this invention. It is a figure which shows an example of the mounting structure of the input device shown in FIG. 6 is a flowchart illustrating an operation of the input device illustrated in FIG. 5.
- FIG. 5 It is a figure which shows the general load characteristic of a pushbutton switch. It is a figure which shows the sensory evaluation result at the time of operating the various pushbutton switches from which pressing load differs. It is a figure which shows the sensory evaluation result at the time of operating
- FIG. 6 is a diagram for explaining an example of a tactile sensation presentation when the reference load at the time of pressing and at the time of release is set to be the same in the input device shown in FIG. 5.
- FIG. 6 is a diagram for explaining an example of a click tactile sensation when the reference load at the time of release is set smaller than the reference load at the time of pressing in the input device shown in FIG. 5.
- It is a block diagram which shows schematic structure of the input device which concerns on 2nd Embodiment of this invention. It is a front view of the input device shown in FIG. It is a figure which shows the sensory evaluation result of a click feeling when changing the frequency of the drive signal which drives the vibration part shown in FIG.
- tactile sensations are detected as pressure-sensitive nerves that feel the tactile sensation of hardness and softness due to the load transmitted to bones and muscles when touching the object, and vibrations transmitted to the skin surface when touching the object And there are tactile nerves that feel the touch of things. That is, the pressure sense detects a load, and the tactile sense detects vibration. In general, tactile sensation is a sense in which pressure sense and tactile sense are combined. Therefore, if the stimulation to “pressure sense” and “tactile sense” when the push button switch is operated is reproduced in the same manner on a touch panel, for example, it becomes possible to present a click tactile sensation to the operator.
- a metal dome switch, an emboss switch, a rubber switch, a tactile switch, and the like are widely known as push button switches used in information equipment and home appliances.
- the load characteristics of these general push button switches generally have the characteristics shown in FIG. 1 although there are differences in the stroke of the push button and the applied load (pressing force) depending on the type of switch.
- the period from point A to point B is a period in which the load increases almost in proportion to the pressing from the start of pressing the push button.
- the period from the point B to the point C is a period in which a convex elastic member such as a metal dome buckles due to the push button being pressed and the load is rapidly reduced.
- the period from the point C to the point D is a period in which the load increases substantially in proportion to the push-in when the contact of the switch is closed.
- the load characteristics at the time of release of the push button have some hysteresis but follow the opposite change from that at the time of push. That is, the period from the point D to the point E is a period in which the load decreases almost in proportion to the start of the release, and the switch contact is maintained in the closed state.
- the period from the point E to the point F is a period in which the elastic member returns from the buckled state to the convex shape due to the release of the push button and the load increases rapidly, and the contact of the switch is opened at the start of this period.
- the period from the point F to the point G is a period from the return of the elastic member to the release of the finger from the push button, and a period in which the load decreases approximately in proportion.
- the maximum stroke of the push button is, for example, 1 mm or less in the case of a metal dome switch, an emboss switch, and a tactile switch, and is as small as 3 mm or less in the case of a rubber switch.
- the load at point B is, for example, around 1N to around 6N in the case of a metal dome switch, emboss switch, and tactile switch, and is around 0.5N in the case of a rubber switch, for example. Then, regardless of which push button switch is operated, the operator can feel the click feeling.
- the present inventors examined how the push button switch moves to obtain a click tactile sensation produced by “pressure sensation” and “tactile sensation”. First, it was examined whether the click feeling was due to a change in stroke or a change in pressing load.
- FIG. 2 is a diagram showing sensory evaluation results showing how the operator feels when various push button switches with different pressing loads are operated.
- the horizontal axis indicates the actual pressing load, and the vertical axis indicates whether the push button switch feels heavy or light, on a 7-point scale.
- the test subjects are five people who are used to using the mobile terminal.
- the push load can be recognized as heavy for a push button switch with a high push load, and can be recognized as light for a push button switch with a low push load.
- FIG. 3 is a diagram showing sensory evaluation results showing how the operator feels when operating various push button switches with different strokes.
- the horizontal axis indicates the actual stroke, and the vertical axis indicates whether the push button switch is felt long or short on a 7-point scale.
- the test subjects are five people who are accustomed to using the portable terminal as in the case of FIG. As is apparent from FIG. 3, it can be understood that long and short strokes are not clearly recognized with respect to minute strokes.
- the present inventors paid attention to the change in the pressing load. That is, if the human cannot recognize the difference in stroke, the click tactile sensation can be improved by changing the pressing load change on the plane such as the touch panel, that is, the stimulus to the pressure sense as the ABC point shown in FIG. I examined how it feels. Therefore, an experimental apparatus having a plate that can be displaced in the vertical direction is created, and the plate is pressed from point A to point B shown in FIG. 1, and when the load at point B is reached, the plate is instantaneously moved downward. The load change between the BC points was reproduced with a small displacement.
- the present inventors examined not only “pressure sense” but also “tactile sense” which is another sensory nerve. Therefore, the present inventors have measured the vibration generated in the push button when the push button is operated for various portable terminals equipped with the input device having the push button switch of the metal dome switch. As a result, it was found that the push button vibrates at a frequency of approximately 100 Hz to 200 Hz when the push load reaches point B in FIG. 1, that is, when the metal dome starts buckling.
- FIG. 4 is a diagram showing an example of the measurement result in that case.
- the horizontal axis indicates the elapsed time of pressing, and the vertical axis indicates the vibration amplitude.
- the push button switch vibrates at a point B in FIG. 1 as indicated by a solid line in FIG.
- a human receives a vibration stimulus having a period of about 6 ms (frequency is about 170 Hz) for about one period when pressed.
- this push button switch vibrates when the pressing load reaches the point F in FIG. 1 at the time of release, that is, when the metal dome returns from the buckled state, as shown by a one-dot chain line in FIG. To do.
- humans receive vibration stimulation of about one cycle for a period of about 8 ms (frequency: about 125 Hz) at the time of release.
- the input device stimulates a pressure sense until a pressing load satisfies a predetermined standard for accepting an input to the input unit when pressing a plate-shaped pressing type input unit.
- a predetermined standard is satisfied, the input unit is vibrated with a predetermined drive signal, that is, a constant frequency, a period (wavelength) that is a drive time, a waveform, and an amplitude to stimulate the sense of touch.
- a click tactile sensation (hereinafter, the click tactile at the time of release is also referred to as a release tactile sense as appropriate) is presented to the operator even at the time of release. This presents the operator with a realistic click feel similar to when the push button switch is pressed.
- the input device is, for example, a so-called continuous hitting in which the same input object that is frequently performed when inputting a telephone number, mail, or the like is continuously input in an input device used for a portable terminal.
- the release tactile sensation presentation standard is appropriately set with respect to the click tactile sensation presentation standard at the time of pressing so that the operator can present a realistic click tactile sensation without any sense of incongruity.
- FIG. 5 is a block diagram showing a schematic configuration of the input device according to the first embodiment of the present invention.
- the input device includes a display panel 11, a touch panel 12, a load detection unit 13, a vibration unit 14, and a control unit 15 that controls the overall operation.
- the display panel 11 constitutes a display unit that displays an input object such as an input button, and is configured using, for example, a liquid crystal display panel, an organic EL display panel, or the like.
- the touch panel 12 constitutes an input unit that accepts an input by pressing on the display panel 11, and is configured by using, for example, a known device such as a resistance film method or a capacitance method.
- the load detection unit 13 detects a pressing load on the touch panel 12, and is configured using, for example, a strain gauge sensor.
- the vibration part 14 vibrates the touch panel 12, for example, is comprised using a piezoelectric vibration element.
- FIG. 6 shows an example of the mounting structure of the input device shown in FIG. 5, FIG. 6 (a) is a sectional view of the principal part, and FIG. 6 (b) is a plan view of the principal part.
- the display panel 11 is housed and held in the housing 21.
- a touch panel 12 is held on the display panel 11 via an insulator 22 made of an elastic member.
- the display panel 11 and the touch panel 12 are rectangular in a plan view, and the touch panel 12 is displaced from the display area A of the display panel 11 indicated by a virtual line in FIG. It is held on the display panel 11 via insulators 22 arranged at the four corners.
- the casing 21 is provided with an upper cover 23 so as to cover the surface area of the touch panel 12 outside the display area of the display panel 11, and an insulator made of an elastic member is provided between the upper cover 23 and the touch panel 12. 24 is arranged.
- the touch panel 12 has, for example, a surface, that is, an operation surface made of a transparent film, a back surface made of glass, and when the operation surface is pressed, the surface transparent film bends (distorts) in a small amount according to the pressing force. ) Structures can be used.
- a strain gauge sensor 31 for detecting a load (pressing force) applied to the touch panel 12 is provided in the vicinity of each side covered with the upper cover 23 by adhesion or the like.
- piezoelectric vibrators 32 for vibrating the touch panel 12 are provided by adhesion or the like in the vicinity of two opposing sides. That is, in the input device shown in FIG. 6, the load detection unit 13 shown in FIG. 5 is configured using four strain gauge sensors 31, and the vibration unit 14 is configured using two piezoelectric vibrators 32.
- FIG. 6B the casing 21, the upper cover 23, and the insulator 24 shown in FIG. 6A are not shown.
- FIG. 7 is a flowchart showing the operation of the input device according to the present embodiment.
- the control unit 15 monitors an input to the touch panel 12 and monitors a load detected by the load detection unit 13.
- the input to the touch panel 12 is an input to the input object displayed on the display panel 11 and a predetermined load that receives the input while the pressing load detected by the load detection unit 13 is increased by pressing the touch panel 12. It is detected that the standard is satisfied (step S81).
- the control unit 15 receives an input to the touch panel 12 at the time of detection, and drives the vibration unit 14 with a predetermined drive signal to vibrate the touch panel 12 with a predetermined vibration pattern set in advance ( Step S82).
- the operator is presented with a click tactile sensation via a finger pressing the touch panel 12 or a stylus pen pressing object, thereby recognizing that the input operation has been completed.
- the load detection unit 13 detects the load from the average value of the outputs of the four strain gauge sensors 31, for example.
- the vibration unit 14 drives, for example, two piezoelectric vibrators 32 in the same phase.
- the predetermined reference detected in step S81 is, for example, the load at point B shown in FIG. Therefore, the predetermined reference may be set as appropriate according to the load characteristic when the push button switch to be expressed is pressed. For example, in the case of application to a portable terminal, the user can freely set so that an elderly user can be set heavy and a user who frequently sends mail can be set lightly.
- the predetermined drive signal for driving the vibration unit 14 in step S82 that is, the constant frequency, period (wavelength), waveform, and amplitude for stimulating the sense of touch may be appropriately set according to the click tactile sensation to be presented.
- a predetermined load for example, a sine wave having a constant frequency of 170 Hz.
- the vibration unit 14 is driven by a drive signal for one cycle, and the touch panel 12 is vibrated by about 15 ⁇ m with a predetermined load applied.
- a real click tactile sensation can be presented to the operator.
- control unit 15 detects that the load detected by the load detection unit 13 satisfies a predetermined standard (step S83), the control unit 15 drives the vibration unit 14 with a predetermined drive signal in the same manner as when pressing. Then, the touch panel 12 is vibrated with a predetermined vibration pattern (step S84).
- the predetermined reference load detected at the time of release of step S83 is a load lower than the load detected at the time of pressing detected at step S81, preferably 50 as the load at the time of pressing as described later.
- the drive signal for driving the vibration unit 14 can be the same as or different from the drive signal at the time of pressing in step S82.
- the frequency of the drive signal at the time of pressing to accept the input to the touch panel 12 can be 170 Hz
- the frequency of the drive signal at the time of release can be 125 Hz, for example, as shown in FIG.
- the input device stimulates the pressure sense until the load applied to the touch panel 12 detected by the load detection unit 13 satisfies a predetermined criterion for accepting an input to the touch panel 12,
- the vibration unit 14 is driven with a predetermined drive signal, and the touch panel 12 is vibrated with a predetermined vibration pattern to stimulate the sense of touch.
- a tactile sensation is presented to the operator to recognize that the input operation has been completed. Therefore, the operator can perform an input operation while obtaining a realistic click feeling similar to that when the push button switch is operated on the touch panel 12, and thus does not feel uncomfortable.
- the operator can perform an input operation in conjunction with the consciousness of “pressing” the touch panel 12, an input error due to a simple press can be prevented.
- the input device according to the present embodiment when the input device according to the present embodiment satisfies a criterion lower than a predetermined criterion for accepting a press input at the time of release after accepting the press input, the input device according to the present embodiment performs the predetermined operation as in the case of the press.
- the touch panel 12 is vibrated with a predetermined vibration pattern set in advance. Thereby, a release tactile sensation can be presented to the operator.
- the reference load for driving the vibration unit 14 when the reference load for driving the vibration unit 14 is set to be the same during pressing and during release, if the maximum load during pressing exceeds the reference load, as shown in FIG. A tactile sensation can be presented at the time of release and at the time of release. Therefore, it is possible to present to the operator a click feel closer to the push button switch. However, if the pressed object is turned back with a reference load at the time of pressing, the vibration part 14 is not driven at the time of release, or if the operator tries to hold the pressing load with the reference load, an unexpected release tactile sensation may occur. It is assumed that the operator feels uncomfortable by being presented.
- the input device sets the reference load for driving the vibration unit 14 at the time of release to a lower load than the reference at the time of release, so The release tactile sensation can be presented, and the click tactile sensation closer to the push button switch can be presented to the operator more reliably.
- the predetermined reference load for driving the vibration unit 14 at the time of release is set to a value in the range of 50% to 80% with respect to the predetermined reference load for driving the vibration unit 14 at the time of pressing.
- the touch panel 12 is set.
- a smooth continuous input operation can be performed while obtaining a realistic click feeling.
- “Cut” and “Chip” express the click feeling that humans receive.
- FIG. 10 and 11 show an input device according to a second embodiment of the present invention.
- FIG. 10 is a block diagram showing a schematic configuration
- FIG. 11 is a front view.
- This input device is mounted on, for example, a portable terminal.
- a touch panel 41 that is an input unit that receives an input by pressing
- a position detection unit 42 that detects an input position with respect to the touch panel 41
- a display panel 43 that displays information based on the input position detected by the position detection unit 42
- a load detection unit 44 that detects a pressing load on the touch panel 41
- a vibration unit 45 that vibrates the touch panel 41, and the overall operation
- a control unit 46 controls the overall operation.
- a plurality of input objects 41a such as numeric keys are formed in advance by printing or pasting.
- Each input object 41a sets an effective pressing area for receiving input narrower than the formation area of the input object 41a in order to prevent erroneous input due to pressing across a plurality of adjacent input objects 41a.
- the load detection unit 44 and the vibration unit 45 are configured using a strain gauge sensor and a piezoelectric vibrator, respectively, as in the case of the input device illustrated in FIG. 6.
- the control unit 46 monitors an input to the touch panel 41 and a load detected by the load detection unit 44, and also monitors an input position to the touch panel 41 detected by the position detection unit 42. Then, the input position of the effective pressing area of the input object is detected by the position detecting unit 42, and a predetermined reference for receiving input while the pressing load detected by the load detecting unit 44 is increased by pressing of the touch panel 41. When satisfied, the vibration unit 45 is driven with a predetermined drive signal to vibrate the touch panel 41 with a predetermined vibration pattern.
- the control unit 46 increases the load on the touch panel 41 as in the input device according to the first embodiment.
- the vibration unit 45 is driven by a drive signal for one cycle including a sine wave having a constant frequency of 170 Hz.
- the touch panel 41 is vibrated by about 15 ⁇ m with a predetermined load applied.
- the control unit 46 receives the input detected by the touch panel 41, and thereby displays the display panel 43 according to the input.
- control unit 46 satisfies a predetermined criterion at the time of release in which the load detected by the load detecting unit 44 is lower than the predetermined criterion for accepting the input of the touch panel 41 as in the case of the first embodiment.
- the vibration unit 45 is driven with a predetermined drive signal to vibrate the touch panel 41 with a predetermined vibration pattern set in advance.
- the operator obtains the same click feeling as when the touch button 41 is operated on the touch panel 41. , Because the input operation can be performed, there is no sense of incongruity. Further, since the input operation is performed in conjunction with the consciousness of “pressing” the touch panel 41, an input error due to simple pressing can be prevented.
- the vibration unit 45 is similar to that at the time of the press. Is driven by a predetermined drive signal, and the touch panel 41 is vibrated with a predetermined vibration pattern set in advance. Thereby, a release tactile sensation can be surely presented. Therefore, according to the input device according to the present embodiment, it is possible to present to the operator a click tactile sensation closer to a push button switch in combination with a click tactile sensation at the time of pressing.
- the predetermined reference load for driving the vibration part 45 at the time of release is set to a value in the range of 50% to 80% with respect to the predetermined reference load for driving the vibration part 45 at the time of pressing, it is realistic. Smooth continuous input operation is possible while obtaining a click feeling.
- FIGS. 12 to 15 Examples of these evaluation results are shown in FIGS. 12 to 15, the test subjects are the same five people who performed the sensory evaluation of FIGS. 2 and 3.
- the evaluation items are three items of “feeling click feel”, “good touch”, and “similar to mobile terminal”. In the evaluation item “feeling click feeling”, “not feeling” is 1 point and “feeling strongly” is 7 points. In the evaluation item “good for touch”, “bad” is 1 point and “good” is 7 points. In the evaluation item “similar to mobile terminal”, “not similar” is 1 point, and “very similar” is 7 points.
- the evaluation score of each item showed the average score of 5 persons.
- FIG. 12 shows the evaluation results when the frequency is changed.
- the cycle (wavelength) of the drive signal that drives the vibration unit 14, that is, the drive time is one cycle
- the waveform is a sine wave
- the frequency is changed in the range of 50 Hz to 250 Hz.
- the amplitude of the drive signal is a signal amplitude with which a vibration amplitude of 15 ⁇ m is obtained on the touch panel 12 with a predetermined reference load applied.
- the highest evaluation was obtained when the frequency was 170 Hz. However, if the frequency was 140 Hz or higher, it was confirmed that a human could obtain a click feeling similar to that of a mobile terminal.
- FIG. 13 shows an evaluation result when the amplitude of the drive signal is changed.
- the frequency of the drive signal for driving the drive unit 14 was 170 Hz
- the cycle was 1 cycle
- the waveform was a Sin wave.
- the signal amplitude was changed so that the touch panel 12 vibrates with a predetermined amplitude within 1 ⁇ m to 35 ⁇ m in a no-load state where the touch panel 12 is not pressed.
- the drive unit 14 was driven when a load of 1.5 N was applied to the touch panel 12 under vibration amplitude conditions at each no load, and each evaluation item was evaluated. Note that the horizontal axis of FIG.
- FIG. 14 shows the evaluation results when the period (wavelength), which is the driving time, is changed.
- the waveform of the drive signal that drives the vibration unit 14 is a Sin wave
- the signal amplitude is an amplitude and a frequency of 170 Hz with a vibration amplitude of about 15 ⁇ m with a predetermined reference load applied to the touch panel 12.
- the cycle was changed in the range of 1/4 cycle to 3 cycles.
- the vibration displacement in the touch panel 12 is substantially equal to that in the other period, that is, the signal amplitude that can obtain the vibration amplitude of about 15 ⁇ m.
- the highest evaluation was obtained when the period (wavelength) was one period.
- a favorable result was obtained in general even when the period was 5/4 or less than one period, it was confirmed that when the period became 3/2 or more, the touch feeling of the mobile terminal was deviated.
- FIG. 15 shows the evaluation results when the waveform of the drive signal is changed.
- the waveform of the drive signal which drives the vibration part 14 was made into the Sin wave, the rectangular wave, and the triangular wave was evaluated.
- the frequency of each signal was 170 Hz
- the signal amplitude was an amplitude with a vibration amplitude of about 15 ⁇ m with a predetermined reference load applied to the touch panel 12, and the cycle was one cycle.
- the highest evaluation was obtained in the case of the Sin wave.
- the Sin wave drive signal (input voltage of the drive unit 14) is not limited to one cycle in which the voltage increases and decreases from the phase 0 degree as shown by the one-dot chain line in FIG. It is possible to obtain a voltage of one cycle from an arbitrary phase, such as decreasing and increasing.
- FIG. 16 shows the vibration amplitude waveform (dashed line) of the touch panel 12 when there is no load when the drive unit 14 is driven with the input voltage indicated by the alternate long and short dash line, and the touch panel 12 when pressed with 1.5N.
- the vibration amplitude waveform (solid line) is also shown.
- the present inventors performed a sensory evaluation of the tactile sensation of clicking when the vibrating unit 14 is driven only when pressed as described above and when driven when pressed and released. The results will be described below.
- FIG. 17 is a diagram illustrating an example of an evaluation result in this case.
- the left side shows the evaluation result when the vibration unit 14 is driven only when pressed, that is, “no release feel”, and the right side is when driven both when pressed and released, that is, “release”.
- the sensory evaluation results in the case of “with tactile sensation” are shown.
- the test subjects are the same five people who performed the sensory evaluation in FIGS. 2 and 3.
- the evaluation items are four items obtained by adding the item “may be feedback (easy to recognize)” to the three items in FIGS.
- the evaluation score for each item was an average of 5 people, with a maximum of 7 points. It should be noted that “bad” is 1 point and “good” is 7 points in the evaluation item “may be feedback”.
- a predetermined reference load for driving the vibration unit 14 is made the same at the time of pressing and releasing, and the drive signal is also made the same.
- the predetermined reference load is 1.5N.
- the drive signal made the touch panel 12 vibrate about 15 micrometers in the press state of 1.5N for the Sin wave of frequency 170Hz for 1 period.
- the present inventors performed a sensory evaluation of the click feeling when continuous input is performed in the case where the click feeling at the time of pressing and the release feeling at the time of release are presented as described above. The results will be described below.
- FIG. 18 shows a case where the pressing load of the third input is turned back with the reference load in four consecutive inputs.
- FIG. 19 shows a case where the third input is performed before the release load in the second input reaches the release reference in the fourth continuous input.
- the predetermined reference load at the time of release is too low, it takes time to return to the predetermined reference.
- the operator feels uncomfortable with the tactile sensation that is presented, and despite the desire to perform continuous input, it takes time until the next input, and quick continuous input cannot be performed. There is a concern that the operability of the system will deteriorate.
- the predetermined reference load for driving the vibration unit 14 at the time of release is set to a value close to the load for driving the vibration unit 14 at the time of pressing, continuous input can be performed more quickly.
- it is attempted to hold the pressed state in the middle of continuous input it is assumed that an unexpected release tactile sensation may be presented and the operator may feel uncomfortable. That is, when the pressing state is held in the middle of continuous input, even if the operator intends to keep the pressing load constant, there is a slight load fluctuation. For this reason, for example, as shown in FIG. 20, when the load width between the reference at the time of pressing and the reference at the time of release is narrower than the width of the load fluctuation in the hold state, the operator is holding. Even if you intend to do so, you will be presented with a tactile sensation at the time of release and will feel uncomfortable.
- the present inventors performed a sensory evaluation of the tactile sensation of click feeling by variously changing the load for driving the vibration part 14 at the time of release with respect to the load for driving the vibration part 14 at the time of pressing.
- FIG. 21 to 23 are diagrams showing examples of evaluation results in this case.
- the number of subjects is the same as those who performed the sensory evaluation of FIG.
- the evaluation items are five items obtained by adding the item “easy to hit repeatedly” to the four items in FIG. 17.
- the evaluation score for each item was an average of 5 people, with a maximum of 7 points.
- “difficult” is 1 point
- “easy to input continuously” is 7 points.
- the drive signal which drives a vibration part also at the time of a press and a release made the sine wave of frequency 170Hz one period, and when the predetermined reference
- FIG. 21 shows the evaluation results when the predetermined standard at the time of pressing is 1N and the predetermined standard at the time of release is 0N, 0.5N, and 1N.
- the predetermined reference load for starting vibration at the time of pressing is 1N
- the highest value for all evaluation items is obtained when the predetermined reference load for starting vibration at the time of release is 0.5N. High evaluation was obtained.
- FIG. 22 shows the evaluation results when the predetermined reference at the time of pressing is 2N and the predetermined reference at the time of release is 0N, 0.5N, 1N, 1.5N, 2N.
- the predetermined reference load for starting vibration at the time of pressing is 2N
- high evaluation is obtained when the predetermined reference load for starting vibration at the time of release is 1N and 1.5N. It was. In particular, in the case of 1.5N, the highest evaluation was obtained in all the evaluation items.
- FIG. 23 shows the evaluation results when the predetermined reference at the time of pressing is 3N and the predetermined reference at the time of release is 0N, 0.5N, 1N, 1.5N, 2N, 2.5N, 3N.
- the predetermined reference load that starts vibration at the time of pressing is 3N
- it is high when the predetermined reference load that starts vibration at the time of release is 1.5N, 2N, and 2.5N. Evaluation was obtained. In particular, in the case of 2N, the highest evaluation was obtained for all the evaluation items.
- the predetermined reference load for driving the vibration part at the time of release is set to a value in the range of 50% to 80% with respect to the predetermined reference load for driving the vibration part at the time of pressing.
- the predetermined reference load at the time of release is set to be smaller than the predetermined reference load at the time of pressing and 50% or more of the predetermined reference load at the time of pressing.
- the operativity at the time of continuous input can be improved significantly without giving a sense of incongruity.
- the predetermined reference load at the time of release is set to 80% or less of the predetermined reference load at the time of pressing. Thereby, it is possible to cope with a minute load change in the hold state at the time of continuous input.
- the predetermined reference at the time of pressing when the predetermined reference at the time of pressing is set to 1N, the predetermined reference at the time of release is set to an arbitrary value of 0.5N to 0.8N. Further, when the predetermined reference at the time of pressing is a high load, the range of the load fluctuation in the hold state is wider than when the reference is a low load. Even in such a case, the predetermined reference load at the time of release is set in the range of 50% to 80% of the predetermined reference load at the time of pressing. For example, when the predetermined reference at the time of pressing is set as high as 6N, the predetermined reference at the time of release is set to 3N to 4.8N.
- the predetermined reference load at the time of pressing and the predetermined reference load at the time of release may be fixedly set or may be appropriately selected and set by the user.
- the load detection unit can be configured using an arbitrary number of strain gauge sensors.
- a load detection part can be comprised according to the input detection system in a touch panel.
- the vibration unit is configured by using an arbitrary number of piezoelectric vibrators, is configured by providing a transparent piezoelectric element on the entire operation surface of the touch panel, or rotates the eccentric motor once in one cycle of the drive signal. Can also be configured.
- the control unit inverts the display color of the corresponding input object on the display panel when the input from the touch panel is received. It can also be controlled to change the display mode. Furthermore, the control unit can be configured to change the click feeling presented by changing the drive signal for driving the vibration unit in accordance with the input position detected by the touch panel.
- the present invention can also be effectively applied to an input device whose input unit functions as a single switch. Furthermore, the input device according to the present invention presents a click tactile sensation sequentially with different standards (loads) in the middle of pressing of the input unit, and a multi-stage switch such as a two-stage switch (pressed and then pushed further). A tactile sensation can also be presented. Thereby, for example, when applied to a release button of a camera, it is possible to present a tactile sensation between focus lock (pressed one step) and release (pressed two steps). When combined with the display unit, the display of the menu screen or the like can be variously changed according to the number of push-in steps. Furthermore, when presenting the tactile sensation of the multistage switch in this way, it is also possible to change the drive signal that causes the input unit to vibrate at each stage and present different click sensations at each stage.
- the vibration unit when the pressing load detected by the load detection unit satisfies a predetermined standard for receiving an input, the vibration unit is driven.
- the pressing load detected by the load detection unit satisfies a predetermined criterion for receiving an input, even when the pressing load detected by the load detection unit reaches a predetermined value for receiving an input It may be when the pressing load detected by the load detection unit exceeds a predetermined value for receiving an input, or when a predetermined value for receiving an input is detected by the load detection unit.
- control unit drives the vibration unit to vibrate the input unit (touch panel) with a predetermined vibration pattern when the pressing load detected by the load detection unit satisfies a predetermined reference.
- the predetermined vibration pattern may be a vibration pattern indicated by a solid line in FIG. 4 when pressed.
- the predetermined vibration pattern may be a vibration pattern indicated by a one-dot chain line in FIG.
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Abstract
Description
押圧による入力を受け付ける入力部と、
前記入力部に対する押圧荷重を検出する荷重検出部と、
前記入力部を振動させる振動部と、
前記荷重検出部により検出される押圧荷重が、前記入力部への入力を受け付ける所定の基準を満たした際に、前記入力部を押圧している押圧物に対してクリック触感を呈示するように前記振動部の駆動を制御し、前記入力部への入力を受け付けた後、前記荷重検出部により検出される押圧荷重が前記入力部への入力を受け付ける前記所定の基準より低い基準を満たした際に、前記押圧物に対してクリック触感を呈示するように前記振動部の駆動を制御する制御部と、
を備えることを特徴とするものである。
図5は、本発明の第1実施の形態に係る入力装置の概略構成を示すブロック図である。この入力装置は、表示パネル11、タッチパネル12、荷重検出部13、振動部14、および、全体の動作を制御する制御部15を有する。表示パネル11は、入力ボタン等の入力用オブジェクトを表示する表示部を構成するもので、例えば、液晶表示パネルや有機EL表示パネル等を用いて構成される。タッチパネル12は、表示パネル11に対する押圧による入力を受け付ける入力部を構成するもので、例えば、抵抗膜方式や静電容量方式等の公知のものを用いて構成される。荷重検出部13は、タッチパネル12に対する押圧荷重を検出するもので、例えば、歪みゲージセンサを用いて構成される。また、振動部14は、タッチパネル12を振動させるもので、例えば、圧電振動素子を用いて構成される。
図10および図11は、本発明の第2実施の形態に係る入力装置を示すもので、図10は概略構成を示すブロック図、図11は正面図である。この入力装置は、例えば、携帯端末に実装されるもので、図10に示すように、押圧による入力を受け付ける入力部であるタッチパネル41と、タッチパネル41に対する入力位置を検出する位置検出部42と、位置検出部42で検出された入力位置に基づく情報を表示する表示パネル43と、タッチパネル41に対する押圧荷重を検出する荷重検出部44と、タッチパネル41を振動させる振動部45と、全体の動作を制御する制御部46とを有する。
12 タッチパネル
13 荷重検出部
14 振動部
15 制御部
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 超音波振動子
41 タッチパネル
41a 入力用オブジェクト
42 位置検出部
43 表示パネル
44 荷重検出部
45 振動部
46 制御部
Claims (1)
- 押圧による入力を受け付ける入力部と、
前記入力部に対する押圧荷重を検出する荷重検出部と、
前記入力部を振動させる振動部と、
前記荷重検出部により検出される押圧荷重が、前記入力部への入力を受け付ける所定の基準を満たした際に、前記入力部を押圧している押圧物に対してクリック触感を呈示するように前記振動部の駆動を制御し、前記入力部への入力を受け付けた後、前記荷重検出部により検出される押圧荷重が前記入力部への入力を受け付ける前記所定の基準より低い基準を満たした際に、前記押圧物に対してクリック触感を呈示するように前記振動部の駆動を制御する制御部と、
を備えることを特徴とする入力装置。
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US13/001,591 US9904363B2 (en) | 2008-12-22 | 2009-12-21 | Input apparatus for generating tactile sensations and control method of input apparatus |
CN200980151955.4A CN102265247B (zh) | 2008-12-22 | 2009-12-21 | 输入设备 |
EP09834408A EP2369449A4 (en) | 2008-12-22 | 2009-12-21 | INPUT DEVICE |
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JP2008326297A JP4633166B2 (ja) | 2008-12-22 | 2008-12-22 | 入力装置および入力装置の制御方法 |
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EP (1) | EP2369449A4 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012068976A (ja) * | 2010-09-24 | 2012-04-05 | Kyocera Corp | 電子情報機器 |
Also Published As
Publication number | Publication date |
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CN102265247B (zh) | 2017-06-13 |
JP4633166B2 (ja) | 2011-02-16 |
EP2369449A1 (en) | 2011-09-28 |
JP2010146510A (ja) | 2010-07-01 |
KR101322373B1 (ko) | 2013-10-28 |
CN102265247A (zh) | 2011-11-30 |
US9904363B2 (en) | 2018-02-27 |
KR20110088587A (ko) | 2011-08-03 |
EP2369449A4 (en) | 2012-06-20 |
US20110102358A1 (en) | 2011-05-05 |
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