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WO2012161061A1 - Dispositif de présentation de sensation tactile - Google Patents

Dispositif de présentation de sensation tactile Download PDF

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Publication number
WO2012161061A1
WO2012161061A1 PCT/JP2012/062579 JP2012062579W WO2012161061A1 WO 2012161061 A1 WO2012161061 A1 WO 2012161061A1 JP 2012062579 W JP2012062579 W JP 2012062579W WO 2012161061 A1 WO2012161061 A1 WO 2012161061A1
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WO
WIPO (PCT)
Prior art keywords
elastic plate
fixing
piezoelectric actuator
vibration
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2012/062579
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English (en)
Japanese (ja)
Inventor
森田亘
宇波俊彦
加賀山健司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of WO2012161061A1 publication Critical patent/WO2012161061A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present invention relates to a tactile sense presentation device that gives a tactile sense corresponding to an operation to an operator.
  • a tactile sensation presentation device is a device that provides an operator with some tactile sensation, mechanical sensation (force sensation), for example, by vibrating the touch panel when the operator touches the touch panel with a finger. .
  • FIG. 1 is an exploded perspective view showing a support structure of a piezoelectric actuator in the tactile presentation device shown in Patent Document 1.
  • the piezoelectric actuator includes a piezoelectric actuator and a casing member made of a frame. On the inner wall surface side of the housing member, a component storage portion formed of a recess is formed. The component storage part is formed in a shape into which the piezoelectric actuator is fitted. The piezoelectric actuator is attached to the casing member by being inserted into the component storage portion and fitted therein.
  • a convex portion is formed on the piezoelectric actuator, and concave portions are formed on both inner surfaces of the component storage portion.
  • the piezoelectric actuator is attached to the housing member.
  • a housing member is made to contact the touch panel which is a vibration transmission means, and a piezoelectric actuator is driven in this state, the vibration of a piezoelectric actuator is transmitted to a touch panel via a housing member, and a touch panel vibrates.
  • an object of the present invention is to stably suppress the vibration amplitude of the vibration transmitting means by fixing the vibration generating member to the housing with sufficient strength, and to easily reduce the vibration amplitude of the vibration transmitting means.
  • Another object of the present invention is to provide a tactile sense presentation device that can be adjusted.
  • the present invention is connected to a housing having a flat plate surface, a vibration transmission means that is disposed substantially parallel to the flat plate surface of the housing and has a flat plate surface that is touched by an operator, the housing and the vibration transmission device,
  • the present invention relates to a tactile sense presentation device including a vibration generating member that applies vibration in a predetermined direction to a vibration transmitting unit.
  • the vibration generating member includes a flat elastic plate and a piezoelectric element provided on at least one surface of the elastic plate.
  • the elastic plate is provided with a fixing through hole. The vibration transmitting means or the housing and the elastic plate are fixed by a fixing member inserted into the fixing through hole.
  • the fixed state between the vibration transmitting means or the casing and the vibration generating member can be changed to a desired state depending on the fixing specification of the fixing member. That is, it is possible to make appropriate adjustments such as fixing firmly by a fixing member (rigid bonding described later) or fixing weakly (pin bonding described later). Thereby, the vibration mode of the vibration transmitting means can be changed.
  • the elastic plate has a fixing through hole, and the vibration transmitting means or the housing and the elastic plate are fixed by a fixing member inserted into the fixing through hole, so that an external force can be prevented. It becomes a strong fixed state. Therefore, a stable vibration can be supplied and the drop resistance can be improved.
  • a buffer member can be provided between the vibration transmitting means or the housing and the elastic plate.
  • the fixing member can fix the vibration transmitting means or the casing and the elastic plate by rigid joining.
  • This configuration shows the case where the above-mentioned is firmly fixed, and the vibration region of the vibration generating member can be narrowed.
  • the fixing member can fix the vibration transmitting means or the casing and the elastic plate by pin joining.
  • This configuration shows the above-described weakly fixed case, and the vibration region of the vibration generating member can be widened.
  • the fixing member is preferably a screw.
  • This configuration shows one aspect of the fixing member.
  • the vibration generating member has an elastic plate having a flat plate surface and has a rectangular shape in plan view, and is curved and vibrates in a direction perpendicular to the flat plate surface of the elastic plate, and the flat plate surface of the elastic plate is a vibration transmitting means. It is attached to be parallel to the side of
  • the vibration generating member is fixed to the housing by a first fixing member that is inserted into a first fixing through-hole provided at a first end in the longitudinal direction of the rectangular shape of the elastic plate.
  • the vibration generating member is a vibration transmitting means by a second fixing member inserted in a second fixing through-hole provided at a second end located on the opposite side of the longitudinal direction with respect to the first end of the elastic plate. It is fixed to.
  • the vibration generating member has an elastic plate having a flat plate surface and has a rectangular shape in plan view, and is curved and vibrates in a direction perpendicular to the flat plate surface of the elastic plate, and the flat plate surface of the elastic plate is a vibration transmitting means. It is attached to be parallel to the side of
  • the vibration generating member is fixed to the housing by fixing members inserted into fixing through holes provided at both ends of the elastic plate in the longitudinal direction of the rectangle.
  • the vibration generating member is fixed to the vibration transmitting means by a third fixing member inserted in a third fixing through hole provided between both ends of the elastic plate in the longitudinal direction of the rectangle.
  • both ends in the longitudinal direction of the rectangular vibration generating member are connected to the casing, and a portion between both ends in the longitudinal direction is connected to the vibration transmitting means.
  • the vibration of the vibration generating member is transmitted to the vibration transmitting means via the portion between both ends, and the vibration is generated.
  • the transmitting means vibrates in a direction perpendicular to the longitudinal direction of the vibration generating member in parallel with its flat plate surface.
  • the tactile sense presentation device of the present invention can realize the following aspect.
  • the elastic plate has a flat plate surface and bends and vibrates in a direction orthogonal to the flat plate surface of the elastic plate, and the flat plate surface of the elastic plate is spaced from the flat plate surface of the vibration transmitting means by a predetermined distance. It is provided so as to be substantially parallel and at least partially in contact with the back surface of the vibration transmitting means via the contact member.
  • the vibration generating member is fixed to the housing by fixing members inserted into a plurality of fixing through holes provided on the elastic plate.
  • the vibration generating member is fixed to the housing at a plurality of positions so that the flat plate surface of the vibration generating member and the flat plate surface of the vibration transmitting means are substantially parallel.
  • the vibration generating member and the vibration transmitting means are in contact via a contact member.
  • the vibration of the vibration generating member is transmitted to the vibration transmitting means via the contact member because a plurality of locations are fixed to the housing, and the vibration is transmitted.
  • the means vibrates in the normal direction of its flat surface.
  • the vibration generating member can be stably fixed to the housing with sufficient strength, thereby suppressing variation in the vibration amplitude of the vibration transmitting means and easily adjusting the vibration amplitude of the vibration transmitting means. can do.
  • FIG. 10 is an exploded perspective view showing a support structure of a piezoelectric actuator in the tactile presentation device shown in Patent Document 1.
  • FIG. It is a top view which shows the structure of the tactile sense presentation apparatus 10 which concerns on the 1st Embodiment of this invention.
  • It is a three-view figure of the piezoelectric actuator 20 in the haptic presentation apparatus 10 which concerns on the 1st Embodiment of this invention.
  • It is an enlarged view of the installation part of piezoelectric actuator 20B2 in the tactile sense presentation device 10 concerning the 1st embodiment of the present invention.
  • It is the figure which showed schematically the vibration aspect at the time of adjusting the fixed state of piezoelectric actuator 20B2 in the tactile sense presentation apparatus 10 concerning the 1st Embodiment of this invention.
  • FIG. 10 It is a top view which shows the structure of 10 A of tactile sense presentation apparatuses which concern on the 2nd Embodiment of this invention. It is an enlarged view of the installation part of piezoelectric actuator 21A2 in 10 A of tactile sense presentation apparatuses which concern on the 2nd Embodiment of this invention. It is the top view which shows the structure of the haptic presentation apparatus 10B which concerns on the 3rd Embodiment of this invention, and the block diagram which looked at the haptic presentation apparatus 10B from the side.
  • FIG. 2 is a plan view showing the configuration of the tactile presentation device 10 according to the present embodiment.
  • the tactile sense presentation device 10 includes a touch panel 100, a front side case, a back side case 101, a liquid crystal panel, and a main control circuit board of a backlight module.
  • FIG. 2 descriptions of the front-side housing, the liquid crystal panel, and the main control circuit board of the backlight module are omitted.
  • FIG. 2 only the outer shape of the touch panel 100 corresponding to the “vibration transmitting unit” of the present invention is indicated by a dotted line.
  • the tactile sensation presentation device 10 includes a rear side housing 101 having a substantially rectangular shape in plan view as a part of the housing.
  • the back side housing 101 includes a flat back plate and a side plate formed along the side of the back plate.
  • the back plate constitutes a flat plate surface of the back side housing 101.
  • the side plate is formed to extend from the back plate at a predetermined height in the normal direction of the flat plate surface of the back side housing 101. With this structure, a recess having a predetermined depth surrounded by the side plate is formed in the back side housing 101.
  • a support plate 102A is installed as a support member at one end in the longitudinal direction (lateral direction in FIG. 2) of the back side casing 101 in the recess of the back side casing 101, and a support member at the other end.
  • a support plate 102B is installed. These support plates 102A and 102B are fixed to the rear case 101. The support plates 102A and 102B are fixed so as to have a predetermined interval with respect to the side plate of the rear housing 101. Further, the support plates 102A and 102B are fixed so that the short side direction (vertical direction in FIG. 2) of the back side casing 101 is the longitudinal direction of itself.
  • the support plates 102A and 102B are arranged in the longitudinal direction of the support plates 102A and 102B so as to be spaced apart from the side plates of the rear housing 101 so that the following piezoelectric actuator and touch panel fixing body can be installed. Has been. At this time, the interval is set as narrow as possible without inhibiting the vibration of the piezoelectric actuator so that mechanical interference with the piezoelectric actuator does not occur.
  • the piezoelectric actuator corresponds to the “vibration generating member” of the present invention.
  • an actuator using a piezoelectric principle, an actuator using an electromagnetic force, an actuator using a shape memory element, an artificial muscle type actuator, or the like can be appropriately used as a vibration generating member.
  • a set of the piezoelectric actuator 20A1 and the touch panel fixing body 30A1 is installed on one side between the support plate 102A and the side plate along the short side direction of the back side housing 101, and the piezoelectric actuator 20A2 and the other side are installed on the other side.
  • a set of touch panel fixed bodies 30A2 is installed. At this time, the piezoelectric actuators 20A1 and 20A2 are installed on the support plate 102A side, and the touch panel fixing bodies 30A1 and 30A2 are installed on the side plate side.
  • a set of the piezoelectric actuator 20B1 and the touch panel fixing body 30B1 is installed on one side between the support plate 102B and the side plate along the short side direction of the back side housing 101, and the piezoelectric actuator 20B2 and the touch panel fixing body 30B1 are installed on the other side.
  • a set of touch panel fixed bodies 30B2 is installed. At this time, the piezoelectric actuators 20B1 and 20B2 are disposed on the support plate 102B side, and the touch panel fixing bodies 30B1 and 30B2 are disposed on the side plate side.
  • a set of the piezoelectric actuator 20A1 and the touch panel fixing body 30A1, a set of the piezoelectric actuator 20A2 and the touch panel fixing body 30A2, a set of the piezoelectric actuator 20B1 and the touch panel fixing body 30B1, and a set of the piezoelectric actuator 20B2 and the touch panel fixing body 30B2 are obtained. These are arranged at the four corners of the back side housing 101. Note that the number of piezoelectric actuators is not limited to four. A configuration in which the set of the piezoelectric actuator 20A1 and the touch panel fixing body 30A1 and the set of the piezoelectric actuator 20B1 and the touch panel fixing body 30B1 are arranged at the corners of the back side housing 101 may be employed.
  • the upper surface of the touch panel fixing body 30A1, 30A2, 30B1, 30B2 (the surface opposite to the surface facing the back plate of the back side housing 101) is bonded to the four corners on the back surface of the touch panel 100, respectively. Yes. Accordingly, the piezoelectric actuators 20A1, 20A2, 20B1, and 20B2 are disposed at the four corners of the touch panel 100.
  • the touch panel 100 is disposed substantially parallel to the rear plate of the rear housing 101 and includes a flat plate surface that is touched by an operator.
  • FIG. 3 is a trihedral view of the piezoelectric actuator 20.
  • the piezoelectric actuator 20 includes a long and flat elastic plate 200 and two long and flat piezoelectric elements 201.
  • the elastic plate 200 has, for example, a rectangular shape in plan view, a length (length in the longitudinal direction) of 15 mm, a width (length in a direction perpendicular to the longitudinal direction of the flat plate surface) of 3 mm, and a thickness. Is 0.4 mm.
  • the elastic plate 200 only needs to be formed of a material such as a metal, a resin, an alloy, and a composite resin including a metal. In the present embodiment, the elastic plate 200 is formed of 42Ni or stainless steel. Piezoelectric elements 201 are provided on both main surfaces of the elastic plate 200, respectively.
  • the piezoelectric element 201 has, for example, a rectangular shape in plan view, a length (length in the longitudinal direction) of 11 mm, a width (length in a direction perpendicular to the longitudinal direction of the flat plate surface) of 3 mm, and a thickness. Is a dimension of 0.2 mm.
  • the piezoelectric element 201 is long and flat, and has a piezoelectric layer made of piezoelectric ceramics.
  • the piezoelectric layer may be made of a lead zirconate titanate ceramic or may be made of an alkali niobate ceramic such as potassium sodium niobate.
  • the piezoelectric element 201 has drive electrodes for applying voltage, which are formed on both ends in the thickness direction of the piezoelectric layer, that is, on opposing flat plate surfaces.
  • the piezoelectric element 201 is displaced by applying a voltage to the drive electrode, and expands and contracts in the longitudinal direction.
  • the piezoelectric actuator 20 having such a configuration is a bimorph piezoelectric actuator that vibrates in the d31 mode. Therefore, the piezoelectric actuator 20 bends and vibrates in a direction perpendicular to the main surface (flat plate surface).
  • through holes 202 and 203 that penetrate between the principal surfaces of the elastic plate 200 facing each other are formed in regions where the piezoelectric elements 201 are not provided. ing.
  • the through holes 202 and 203 correspond to the “fixing through holes” of the present invention.
  • FIG. 4 is an enlarged view of an installation portion of the piezoelectric actuator 20B2.
  • the installation structure of the piezoelectric actuator 20B2 will be described on behalf of the piezoelectric actuators 20A1, 20A2, 20B1, and 20B2.
  • the piezoelectric actuator 20B2 includes an elastic plate 200 and piezoelectric elements 201 provided on both main surfaces of the elastic plate 200. As shown in FIG. 4, the piezoelectric actuator 20 ⁇ / b> B ⁇ b> 2 is arranged such that the short side direction (width direction) is the depth direction of the concave portion of the back side housing 101, in other words, the main surface is the longitudinal direction of the back side housing 101 The main surface and the side surface of the support plate 102B are disposed so as to face each other.
  • One end (first end) in the longitudinal direction of the piezoelectric actuator 20B2 is fixed to the support plate 102B with a screw 220A.
  • the screw 220A is inserted in a through hole 202 formed in a region where the piezoelectric element 201 is not provided near one end in the longitudinal direction of the elastic plate 200, and the piezoelectric actuator 20B2 is formed by the screw 220A.
  • the screw 220A corresponds to the “fixing member” of the present invention.
  • a washer 221A having a predetermined height is provided between the support plate 102B and the elastic plate 200 of the piezoelectric actuator 20B2.
  • the distance between the piezoelectric actuator 20B2 and the support plate 102B is controlled by the washer 221A.
  • the distance between the surface of the piezoelectric element 201 on the support plate 102B side of the piezoelectric actuator 20B2 and the support plate 102B is set to about 0.2 mm.
  • the washer 221 ⁇ / b> A corresponds to a “buffer member” of the present invention.
  • a washer 222A having a predetermined height is provided between the head of the screw 220A and the elastic plate 200 of the piezoelectric actuator 20B2.
  • the other end (second end) in the longitudinal direction of the piezoelectric actuator 20B2 is fixed to the touch panel fixing body 30B2 by a screw 220B.
  • the screw 220B is inserted in the through hole 203 formed in the region where the piezoelectric element 201 is not provided near the other end in the longitudinal direction of the elastic plate 200, and the piezoelectric actuator 20B2 is formed by the screw 220B.
  • the other end in the longitudinal direction is fixed to the support plate 102B.
  • the screw 220B corresponds to the “fixing member” of the present invention.
  • the touch panel fixing body 30B2 is installed on the side opposite to the support plate 102B with respect to the piezoelectric actuator 20B2.
  • the touch panel fixing body 30B2 is fixed so that the length direction thereof coincides with the longitudinal direction of the piezoelectric actuator 20B2 and is installed in parallel to the piezoelectric actuator 20B2. Further, a washer 221B having a predetermined height is provided between the touch panel fixing body 30B2 and the elastic plate 200 of the piezoelectric actuator 20B2. The distance between the piezoelectric actuator 20B2 and the touch panel fixing body 30B2 is controlled by the washer 221B. For example, in this embodiment, the interval between the surface of the piezoelectric element 201 on the touch panel fixing body 30B2 side of the piezoelectric actuator 20B2 and the touch panel fixing body 30B2 is set to about 0.2 mm.
  • the washer 221B corresponds to the “buffer member” of the present invention.
  • a washer 222B having a predetermined height is provided between the head of the screw 220B and the elastic plate 200 of the piezoelectric actuator 20B2.
  • the fixed end with the support plate 102B is separated from the end in the longitudinal direction of the back side casing 101, and the fixed end with the touch panel fixing body 30B2 is in the longitudinal direction of the back side casing 101. It is installed so as to be close to the end of the.
  • the piezoelectric actuators 20A1, 20A2, and 20B1 are installed such that the fixed end with the support plate is separated from the end portion in the longitudinal direction of the back side housing 101, rather than the fixed end with the touch panel fixed body.
  • the installation structure along the longitudinal direction of the back-side housing 101 may be reversed, but the structure is preferable.
  • the support plates 102A and 102B in the piezoelectric actuators 20A1, 20A2, 20B1, and 20B2 are driven.
  • the end of the side that is not fixed to the back side housing 101 via the touch panel, that is, the end that is fixed to the touch panel fixing bodies 30A1, 30A2, 30B1, and 30B2 is in the short direction of the back side housing 101. Vibrates along.
  • the touch panel fixing bodies 30A1, 30A2, 30B1, and 30B2 vibrate along the short side direction of the back side housing 101, and the touch panel fixing bodies 30A1, 30A2, 30B1, and 30B2 are bonded to the four corners.
  • 100 can be vibrated in a direction substantially parallel to the short direction along the flat plate surface of the touch panel 100.
  • the piezoelectric actuators 20A1, 20A2, 20B1, and 20B2 are fixed to the support plates 102A and 102B, and the piezoelectric actuators 20A1, 20A2, 20B1, and 20B2 are fixed.
  • the fixed state with respect to the touch panel fixing bodies 30A1, 30A2, 30B1, and 30B2 can be adjusted.
  • FIG. 5 is a diagram schematically showing a vibration mode when the fixed state of the piezoelectric actuator 20B2 is adjusted.
  • 5A shows a case where the piezoelectric actuator 20B2 is weakly fixed to the support plate 102B
  • FIG. 5B shows a case where the piezoelectric actuator 20B2 is firmly fixed to the support plate 102B.
  • the other end (second end) in the longitudinal direction of the piezoelectric actuator 20B2 is described as being strongly fixed to the touch panel fixing body 30B2, that is, being rigidly joined.
  • the vibrable range along the longitudinal direction of the piezoelectric actuator 20B2 is a range from one end side end portion of the predetermined range of the other end (second end portion) rigidly joined to a position to be fastened by the screw 220A.
  • the width of the piezoelectric actuator 20B2 which will be described later, becomes wider than when both the other end (second end) and one end (first end) in the longitudinal direction are rigidly joined.
  • one end (first end) in the longitudinal direction of the piezoelectric actuator 20B2 is strongly fixed to the support plate 102B by a screw 220A that is tightened, and the elastic plate 200 of the piezoelectric actuator 20B2. Is in a so-called rigid joint state when the surface contact is made with a large pressure applied to the washer 221A. Thereby, one end (first end) in the longitudinal direction of the piezoelectric actuator 20B2 is fixed on the surface over the predetermined range by the screw 220A.
  • the vibrable range along the longitudinal direction of the piezoelectric actuator 20B2 is the same end (first end) that is also rigidly joined from one end side end of the predetermined range of the other end (second end) that is rigidly joined. Portion) of the piezoelectric actuator 20B2 in the longitudinal direction is narrower than that in the case where the one end (first end portion) in the longitudinal direction of the piezoelectric actuator 20B2 is pin-joined.
  • the vibration possible range of the piezoelectric actuator 20B2 can be adjusted.
  • the touch panel fixed body 30B2 (s) side of the piezoelectric actuator 20B2 (s) in a non-driven state The displacement amount of the position of the end portion on the touch panel fixing body 30B2 (v1) side in the piezoelectric actuator 20B2 (v1) in the state where the amplitude is maximum when driven is increased. Accordingly, the position of the touch panel 100 (s) when the piezoelectric actuator 20B2 is not driven and the touch panel when the piezoelectric actuator 20B2 is driven and the amplitude is maximized with respect to the rear side housing 101.
  • FIG. 5A shows each member in a state in which the piezoelectric actuator 20B2 is not driven, and (v1) shows a state in which the piezoelectric actuator 20B2 is driven and the amplitude is maximum. Each member is shown.
  • the position of the touch panel 100 (s) when the piezoelectric actuator 20B2 is not driven and the touch panel when the piezoelectric actuator 20B2 is driven and the amplitude is maximized with respect to the rear side housing 101.
  • the relative distance between the position of 100 (v2) is shortened.
  • FIG. 5B shows each member in a state where the piezoelectric actuator 20B2 is not driven, and (v2) shows that the piezoelectric actuator 20B2 is driven and the amplitude is maximized. Each member is shown.
  • Such adjustment is also possible for the piezoelectric actuators 20A1, 20A2, and 20B1.
  • the same drive voltage is applied to the drive electrodes of the piezoelectric actuators 20A1, 20A2, 20B1, and 20B2 simply by changing the fixed state of the piezoelectric actuators 20A1, 20A2, 20B1, and 20B2 with respect to the support plates 102A and 102B as described above.
  • the vibration amount (amplitude) of the touch panel 100 can be adjusted.
  • these washers 221A and 221B may be flat washers and have a spring property. It may be a spring washer.
  • an elastic material such as urethane rubber or a microcell polymer sheet may be used.
  • FIG. 6 is a plan view showing the configuration of the tactile presentation device 10A according to the present embodiment.
  • the tactile sense presentation device 10 ⁇ / b> A includes a frame 100 ⁇ / b> HD that holds the touch panel 100.
  • the touch panel 100 is fixed to the frame 100HD.
  • one end (first end) in the longitudinal direction of the piezoelectric actuators 20A1, 20A2, 20B1, and 20B2 is attached to the back side housing 101 via the support plates 102A and 102B.
  • An example of a cantilever mechanism in which the other end (second end) is fixed to the touch panel 100 via the touch panel fixing bodies 30A1, 30A2, 30B1, and 30B2 has been shown.
  • the presentation apparatus 10A an example of a double-supported beam mechanism is shown.
  • casing 101 is the same, description is abbreviate
  • the piezoelectric actuators 21A1 and 21A2 are installed in the concave portion of the back side housing 101 and at substantially the center in the longitudinal direction of the back side housing 101.
  • the piezoelectric actuators 21A1 and 21A2 are formed along the longitudinal direction of the back-side casing 101 on the side plate of the back-side casing 101, and are respectively installed at substantially the center in the longitudinal direction of the portions facing each other. .
  • FIG. 7 is an enlarged view of the installation portion of the piezoelectric actuator 21A2. Since the piezoelectric actuators 21A1 and 21A2 have the same structure and installation structure, the installation structure of the piezoelectric actuator 21A2 will be described as a representative in FIG.
  • the piezoelectric actuator 21A2 includes a long and flat elastic plate 210 and a long and flat piezoelectric element 211.
  • the elastic plate 210 has, for example, a rectangular shape in plan view, a length (length in the longitudinal direction) of 35 mm, a width (length in a direction perpendicular to the longitudinal direction of the flat plate surface) of 3 mm, and a thickness. Is 0.4 mm.
  • the elastic plate 200 only needs to be formed of a material such as a metal, a resin, an alloy, and a composite resin including a metal. In the present embodiment, the elastic plate 200 is formed of glass epoxy.
  • a fixing projection 40 that protrudes in the short direction of the elastic plate 210 is formed at the approximate center in the longitudinal direction of the elastic plate 210.
  • the length in the protruding direction of the fixing protrusion 40 is set to be approximately the thickness of the frame 100HD that holds the touch panel 100, for example.
  • a piezoelectric element 211 is provided on one main surface of the elastic plate 210.
  • the piezoelectric element 211 is provided on the surface of the elastic plate 210 facing the side plate of the back-side housing 101, but the opposite surface may be used.
  • the piezoelectric element 211 has, for example, a rectangular shape in plan view, a length (length in the longitudinal direction) of 30 mm, a width (length in a direction perpendicular to the longitudinal direction of the flat plate surface) of 3 mm, and a thickness. Is a dimension of 0.2 mm.
  • the piezoelectric element 211 is long and flat, and has a piezoelectric layer made of piezoelectric ceramics.
  • the piezoelectric layer may be made of a lead zirconate titanate ceramic or may be made of an alkali niobate ceramic such as potassium sodium niobate.
  • the piezoelectric element 211 has drive electrodes for applying voltage, which are formed on both ends in the thickness direction of the piezoelectric layer, that is, on opposing flat plate surfaces. The piezoelectric element 211 is displaced by applying a voltage to the drive electrode, and expands and contracts in the longitudinal direction. These dimensions and materials are examples, and the driving force and amplitude of the vibration to be generated, the shape of the position where the piezoelectric actuators 21A1 and 21A2 are installed (the distance between the side plate and the end face of the frame 100HD, and the back side casing 101). What is necessary is just to set suitably by depth).
  • the piezoelectric actuators 21A1, 21A2 having such a configuration are unimorph piezoelectric actuators that vibrate in the d31 mode. Thereby, the piezoelectric actuators 21A1 and 21A2 bend and vibrate in a direction orthogonal to the main surface (flat plate surface).
  • the piezoelectric actuator 21 ⁇ / b> A ⁇ b> 2 is arranged so that the short side direction (width direction) is the depth direction of the concave portion of the back side housing 101, in other words, the main surface is along the longitudinal direction of the back side housing 101. It is installed so as to face the face plate.
  • One end (first end) in the longitudinal direction of the piezoelectric actuator 21A2 is fixed to the rear case 101 with a screw 220.
  • the screw 220 is inserted into a through-hole 202C formed in a region where the piezoelectric element 211 is not provided in the vicinity of one end in the longitudinal direction of the elastic plate 210, and the piezoelectric actuator 21A2 by the screw 220.
  • One end in the longitudinal direction is fixed to the rear case 101.
  • the screw 220 corresponds to the “fixing member” of the present invention.
  • a washer 221C2 having a predetermined height is provided between the rear housing 101 and the elastic plate 210 of the piezoelectric actuator 21A2.
  • the distance between the piezoelectric actuator 21A2 and the rear case 101 is controlled by the washer 221C2.
  • the washer 221C2 corresponds to the “buffer member” of the present invention.
  • a washer 222 having a predetermined height is provided between the head of the screw 220 and the elastic plate 210 of the piezoelectric actuator 21A2.
  • the other end (second end) in the longitudinal direction of the piezoelectric actuator 21A2 is fixed to the rear housing 101 by a screw 220.
  • the screw 220 is inserted into a through hole 202C formed in a region where the piezoelectric element 211 is not provided near the other end in the longitudinal direction of the elastic plate 210, and the piezoelectric actuator 21A2 is formed by the screw 220.
  • the other end in the longitudinal direction is fixed to the rear case 101.
  • a washer 221D2 having a predetermined height is provided between the rear housing 101 and the elastic plate 210 of the piezoelectric actuator 21A2. The distance between the piezoelectric actuator 21A2 and the rear case 101 is controlled by the washer 221D2.
  • the washer 221D2 corresponds to the “buffer member” of the present invention.
  • the piezoelectric actuator 21A2 is arranged on the rear side so that the flat plate surface of the piezoelectric actuator 21A2 and the flat plate surface of the side plate of the rear housing 101 are parallel to each other. It is fixed to the housing 101.
  • a washer 222 having a predetermined height is provided between the head of the screw 220 and the elastic plate 210 of the piezoelectric actuator 21A2.
  • a through hole 204 is formed in the fixing projection 40 of the piezoelectric actuator 21A2.
  • the fixing projection 40 of the piezoelectric actuator 21A2 is fixed to the frame 100HD by a screw 220.
  • the screw 220 is inserted into the through hole 204 formed in the fixing projection 40 of the elastic plate 210, and the screw 220 fixes the approximate center in the longitudinal direction of the piezoelectric actuator 21A2 to the frame 100HD. ing.
  • the fixing protrusion 40 is directly fixed to the side surface of the frame 100HD by the screw 220.
  • the positions of the fixing protrusions 40 fixed to the frame 100HD and the rear side housings at both ends of the elastic plate 210 are fixed. Since the position fixed to 101 differs along the height direction of the back side casing 101 (thickness direction of the touch panel 100 and the frame 100HD), both ends of the elastic plate 210 are fixed to the back side casing 101. Even if the screw 220 is installed from the inside of the back side housing 101, it does not contact the touch panel 100 and the frame 100HD.
  • the central region in the longitudinal direction located between both ends of the piezoelectric actuators 21A1 and 21A2 in the longitudinal direction that are fixed to the rear case 101 is fixed. It vibrates along the short side direction of the back side housing 101 with the center between both ends in the longitudinal direction as the antinode of vibration.
  • a fixing protrusion 40 is formed in the central region in the longitudinal direction, and the fixing protrusion 40 is fixed to the frame 100HD.
  • the drive voltage applied to the drive electrodes of the piezoelectric actuators 21A1, 21A2 is changed. Even if they are the same, various vibrations can be realized in the touch panel 100. Also in the present embodiment, various vibrations can be realized in the touch panel 100 by changing the shape, material, and elastic modulus of a buffer member such as a washer. Note that the number of piezoelectric actuators is not limited to two. Only one of the piezoelectric actuators 21 ⁇ / b> A ⁇ b> 1 and 21 ⁇ / b> A ⁇ b> 2 may be installed at a substantially central position in the longitudinal direction of the rear housing 101.
  • FIG. 8A is a plan view showing the configuration of the tactile presentation device 10B according to the present embodiment
  • FIG. 8B is a configuration diagram of the tactile presentation device 10B viewed from the side.
  • the haptic presentation device 10 of the first embodiment and the haptic presentation device 10A of the second embodiment described above are configured to apply vibration to the touch panel 100 from the side surface of the touch panel 100
  • the haptic presentation of the present embodiment is configured to apply vibration from the back surface of the touch panel 100.
  • casing 101 is the same, description is abbreviate
  • a frame 100HD ′ is installed on the opening surface of the rear housing 101 via an elastic body 103.
  • the touch panel 100 is fixed to the frame 100HD ', and the entire opening surface of the rear housing 101 is covered with a composite body including the touch panel 100 and the frame 100HD'.
  • the piezoelectric actuator 22 is installed in the approximate center of the opening surface of the rear housing 101.
  • the piezoelectric actuator 22 includes a rectangular elastic plate 200C in plan view and a flat plate-like piezoelectric element 201C that is circular in plan view.
  • a piezoelectric element 201 ⁇ / b> C is provided on the back plate side surface of the back case 101 in the elastic plate 200 ⁇ / b> C.
  • the piezoelectric element 201C is provided so that the center of the piezoelectric element 201C in plan view and the center of the flat plate surface of the elastic plate 200C substantially coincide.
  • the piezoelectric element 201C has a piezoelectric layer made of piezoelectric ceramics.
  • the piezoelectric element 201 ⁇ / b> C has drive electrodes for applying voltage, which are formed on both ends of the piezoelectric layer in the thickness direction, that is, on opposing flat plate surfaces.
  • the piezoelectric element 201C is displaced by applying a voltage to the drive electrode, and expands and contracts in the longitudinal direction.
  • the piezoelectric actuator 22 having such a configuration is a unimorph piezoelectric actuator that vibrates in the d31 mode. Thereby, the piezoelectric actuator 22 bends and vibrates in a direction orthogonal to the main surface (flat plate surface).
  • An abutting member 50 made of an elastic body is provided on the surface of the elastic plate 200C opposite to the surface on which the piezoelectric element 201C is provided so as to be positioned at the approximate center in plan view.
  • the contact member 50 has a predetermined thickness, and the surface opposite to the contact surface to the elastic plate 200C is in contact with the back surface of the frame 100HD '.
  • the central region of the piezoelectric actuator 22 is along the thickness (height) direction of the back-side housing 101 with the center of the piezoelectric actuator 22 in plan view as a vibration antinode. Vibrate.
  • An abutting member 50 is provided in the central region of the piezoelectric actuator 22, and the abutting member 50 is in contact with the frame 100HD '.
  • the frame 100HD ′ and the touch panel 100 fixed to the frame 100HD ′ can be vibrated in a direction (normal direction) perpendicular to the flat plate surface of the touch panel 100.
  • the drive voltage applied to the drive electrode of the piezoelectric actuator 22 is the same. Even so, various vibrations can be realized in the touch panel 100. Also in the present embodiment, various vibrations can be realized in the touch panel 100 by changing the shape, material, and elastic modulus of a buffer member such as a washer.
  • a buffer member such as a washer.
  • the touch panel 100 can be vibrated in a direction orthogonal to the flat surface of the touch panel 100, so that it is possible to intentionally emit sound from the touch panel 100 as necessary.
  • the touch panel 100 has been described as an example, but any flat plate member can be used as the vibration transmission means of the present invention.
  • a protective glass plate may be used as the vibration transmitting means.
  • the tactile presentation device having the above-described configuration is preferably used for a portable electronic device such as a peripheral device of a personal computer such as a mobile phone, a portable game machine, and an input device.
  • 10, 10A, 10B Tactile presentation device
  • 101 Back side housing
  • 102A, 102B support plate
  • 103 elastic body
  • 20, 20A1, 20A2, 20B1, 20B2, 21, 21A1, 21A2, 22 Piezoelectric actuator
  • 30A1, 30A2, 30B1, 30B2 touch panel fixed body
  • 40 fixing protrusion
  • 50 contact member
  • 210 elastic plate
  • 211 Piezoelectric element
  • 205 through holes
  • 220, 220A, 220B screw
  • 221A, 221B, 221C2, 221D2, 221E, 222 Washer

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

Selon l'invention, un trou traversant (202) est formé sur une extrémité d'un actionneur piézoélectrique (20B2) dans sa direction longitudinale, et l'actionneur piézoélectrique (20B2) est ancré à une plaque de support (102) par une vis (220A) qui est introduite dans le trou traversant (202) et une rondelle (221A). La plaque de support (102B) est ancrée à un boîtier côté face arrière (101). Un trou traversant (203) est formé sur l'autre extrémité de l'actionneur piézoélectrique (20B2) dans sa direction longitudinale, et l'actionneur piézoélectrique (20B2) est ancré à un corps d'ancrage au panneau tactile (30B2) par une vis (220B) qui est introduite dans le trou traversant (203) et une rondelle (221B). Le corps d'ancrage au panneau tactile (30B2) est ancré à un panneau tactile (100). Par ajustement du degré de serrage des vis (220A, 220B), il est possible d'ajuster l'état d'ancrage de l'actionneur piézoélectrique (20B2) relativement à la plaque de support (102B) et l'état d'ancrage de l'actionneur piézoélectrique (20B2) relativement au corps d'ancrage au panneau tactile (30B2).
PCT/JP2012/062579 2011-05-23 2012-05-17 Dispositif de présentation de sensation tactile Ceased WO2012161061A1 (fr)

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JP2011-114298 2011-05-23

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US20120248935A1 (en) * 2011-04-04 2012-10-04 American Audio Components Inc. Haptic feedback apparatus
JP2014153941A (ja) * 2013-02-08 2014-08-25 Denso Corp タッチパネル装置
JP2015522897A (ja) * 2012-07-26 2015-08-06 イマージョン コーポレーションＩｍｍｅｒｓｉｏｎ Ｃｏｒｐｏｒａｔｉｏｎ ハプティック効果をタッチスクリーンに提供する一体化圧電材料を有するサスペンション部材
WO2016053952A1 (fr) * 2014-09-30 2016-04-07 Apple Inc. Ensemble de retour haptique
JP2016536671A (ja) * 2013-10-08 2016-11-24 ティーケー ホールディングス インク．Ｔｋ Ｈｏｌｄｉｎｇｓ Ｉｎｃ． 統合型多感覚フィードバックを備える圧力応答式タッチインターフェース
JP2017102975A (ja) * 2017-03-03 2017-06-08 京セラ株式会社 触感呈示装置
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US10108265B2 (en) 2012-05-09 2018-10-23 Apple Inc. Calibration of haptic feedback systems for input devices
JP2018536240A (ja) * 2015-12-04 2018-12-06 モダ−イノチップス シーオー エルティディー タッチスクリーン装置
US10297119B1 (en) 2014-09-02 2019-05-21 Apple Inc. Feedback device in an electronic device
US10514760B2 (en) 2015-11-12 2019-12-24 Kyocera Corporation Tactile sensation providing apparatus and electronic device
US10591368B2 (en) 2014-01-13 2020-03-17 Apple Inc. Force sensor with strain relief
US10642361B2 (en) 2012-06-12 2020-05-05 Apple Inc. Haptic electromagnetic actuator
JP2020073272A (ja) * 2020-02-05 2020-05-14 ミネベアミツミ株式会社 電子機器
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JP2022516897A (ja) * 2018-12-31 2022-03-03 アップ２ユー 増幅変形型圧電アクチュエータ

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US8878420B2 (en) * 2011-04-04 2014-11-04 Aac Acoustic Technologies (Shenzhen) Co., Ltd. Haptic feedback apparatus
US20120248935A1 (en) * 2011-04-04 2012-10-04 American Audio Components Inc. Haptic feedback apparatus
US9977500B2 (en) 2012-05-09 2018-05-22 Apple Inc. Thresholds for determining feedback in computing devices
US10108265B2 (en) 2012-05-09 2018-10-23 Apple Inc. Calibration of haptic feedback systems for input devices
US9977499B2 (en) 2012-05-09 2018-05-22 Apple Inc. Thresholds for determining feedback in computing devices
US9910494B2 (en) 2012-05-09 2018-03-06 Apple Inc. Thresholds for determining feedback in computing devices
US10642361B2 (en) 2012-06-12 2020-05-05 Apple Inc. Haptic electromagnetic actuator
JP2015522897A (ja) * 2012-07-26 2015-08-06 イマージョン コーポレーションＩｍｍｅｒｓｉｏｎ Ｃｏｒｐｏｒａｔｉｏｎ ハプティック効果をタッチスクリーンに提供する一体化圧電材料を有するサスペンション部材
US9886116B2 (en) 2012-07-26 2018-02-06 Apple Inc. Gesture and touch input detection through force sensing
JP2014153941A (ja) * 2013-02-08 2014-08-25 Denso Corp タッチパネル装置
JP2016536671A (ja) * 2013-10-08 2016-11-24 ティーケー ホールディングス インク．Ｔｋ Ｈｏｌｄｉｎｇｓ Ｉｎｃ． 統合型多感覚フィードバックを備える圧力応答式タッチインターフェース
US10591368B2 (en) 2014-01-13 2020-03-17 Apple Inc. Force sensor with strain relief
US10297119B1 (en) 2014-09-02 2019-05-21 Apple Inc. Feedback device in an electronic device
US9939901B2 (en) 2014-09-30 2018-04-10 Apple Inc. Haptic feedback assembly
US9772688B2 (en) 2014-09-30 2017-09-26 Apple Inc. Haptic feedback assembly
WO2016053952A1 (fr) * 2014-09-30 2016-04-07 Apple Inc. Ensemble de retour haptique
US10162447B2 (en) 2015-03-04 2018-12-25 Apple Inc. Detecting multiple simultaneous force inputs to an input device
US9798409B1 (en) 2015-03-04 2017-10-24 Apple Inc. Multi-force input device
US10514760B2 (en) 2015-11-12 2019-12-24 Kyocera Corporation Tactile sensation providing apparatus and electronic device
JP2018536240A (ja) * 2015-12-04 2018-12-06 モダ−イノチップス シーオー エルティディー タッチスクリーン装置
US11831213B2 (en) 2016-11-28 2023-11-28 Minebea Mitsumi Inc. Electronic device
US12224640B2 (en) 2016-11-28 2025-02-11 Minebea Mitsumi Inc. Vibration generating device and electronic device
US11031854B2 (en) 2016-11-28 2021-06-08 Minebea Mitsumi Inc. Electronic device
US11043887B2 (en) 2016-11-28 2021-06-22 Minebea Mitsumi Inc. Vibration generating device and electronic device
US12191736B2 (en) 2016-11-28 2025-01-07 Minebea Mitsumi Inc. Electronic device
US11476743B2 (en) 2016-11-28 2022-10-18 Minebea Mitsumi Inc. Vibration generating device and electronic device
US11901788B2 (en) 2016-11-28 2024-02-13 Minebea Mitsumi Inc. Vibration generating device and electronic device
US11539278B2 (en) 2016-11-28 2022-12-27 Minebea Mitsumi Inc. Electronic device
JP2017102975A (ja) * 2017-03-03 2017-06-08 京セラ株式会社 触感呈示装置
JP2022516897A (ja) * 2018-12-31 2022-03-03 アップ２ユー 増幅変形型圧電アクチュエータ
JP7189167B2 (ja) 2020-02-05 2022-12-13 ミネベアミツミ株式会社 電子機器
JP2020073272A (ja) * 2020-02-05 2020-05-14 ミネベアミツミ株式会社 電子機器

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