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WO2019187182A1 - Dispositif de présentation de sensation tactile et dispositif d'entrée d'opération - Google Patents

Dispositif de présentation de sensation tactile et dispositif d'entrée d'opération Download PDF

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Publication number
WO2019187182A1
WO2019187182A1 PCT/JP2018/025891 JP2018025891W WO2019187182A1 WO 2019187182 A1 WO2019187182 A1 WO 2019187182A1 JP 2018025891 W JP2018025891 W JP 2018025891W WO 2019187182 A1 WO2019187182 A1 WO 2019187182A1
Authority
WO
WIPO (PCT)
Prior art keywords
piezoelectric element
plate
annular piezoelectric
operator
tactile sensation
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/JP2018/025891
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English (en)
Japanese (ja)
Inventor
元俊 南部
貢 野崎
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.)
SMK Corp
Original Assignee
SMK Corp
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 SMK Corp filed Critical SMK Corp
Publication of WO2019187182A1 publication Critical patent/WO2019187182A1/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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
    • H02N2/04—Constructional details
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors

Definitions

  • the present invention relates to a tactile sensation presentation device and an operation input device, and more particularly to a device in which a piezoelectric element is applied as means for generating a tactile sensation.
  • the portable electronic device has accepted the operation by generating vibration in response to an operation by the operator. It has become common to attach a function to perceive scent.
  • the cited document 1 includes a combination of a cylindrical actuator 100 and a pressure plate 200, and the actuator 100 and the pressure plate.
  • a configuration is disclosed in which a liquid medium 300 is sealed inside 200 and the pressure plate 200 is vibrated through the medium 300 as the diameter of the actuator 100 expands and contracts (see the figure of the present application). 5).
  • the tactile sense presentation device disclosed in the cited document 1 has a structure in which the pressure plate 200 is displaced via the medium 300, and therefore the volume of the medium 300 pushed out from the inner diameter portion of the actuator 100 due to the contraction of the diameter of the actuator 100. Therefore, each of the pressure plates 300 on both sides is displaced outward. That is, the displacement generated in the pressure plate 200 as the diameter of the actuator 100 contracts is dispersed in the two pressure plates 200.
  • the tactile sense presentation device disclosed in the cited document 1 is used by being fixed to a plate-like member that forms an operation surface of the device, the pressure plate 200 positioned on the fixed side is provided with a pressure plate 200.
  • a load for displacing the plate member is added.
  • the medium 300 pushed out from the inner diameter portion of the actuator 100 exclusively pushes out the pressure plate 200 located on the side opposite to the fixed side.
  • the tactile sense presentation device disclosed in the cited document 1 has a complicated configuration in which a liquid medium is sealed by a pressure plate, it is difficult to reduce the cost, and further, there is a problem such as leakage of the medium. May occur.
  • the present invention has been made in view of such a problem, and is capable of generating a sufficiently large displacement with respect to the operation surface while having a simple configuration. It is an object of the present invention to provide a tactile sense presentation device and an operation input device that can clearly perceive acceptance of an operation.
  • a tactile sense presentation device has an annular piezoelectric element fixed to the other main surface of a flexible plate-like member having one main surface as an operation surface that an operator touches.
  • the annular piezoelectric element has an electrode for applying a voltage, and when the voltage is applied to the electrode, a deformation that reduces or expands the diameter is generated. A tactile sensation is presented to the operator by the bending of the plate-like member caused by the deformation of the piezoelectric element.
  • the annular piezoelectric element If the annular piezoelectric element is deformed so that the diameter or diameter of the annular piezoelectric element is reduced or expanded in a state where the annular piezoelectric element is fixed to the flexible plate-like member, it is directly bent with respect to the plate-like member. Can be generated. The bending of the plate-like member at this time is forcibly generated along with the deformation of the annular piezoelectric element, and is generated three-dimensionally around the annular piezoelectric element. It becomes larger than the displacement caused indirectly through the medium or the pressure plate as in the prior art.
  • a plurality of the annular piezoelectric elements may be fixed to one plate-like member.
  • the tactile sense presentation apparatus which can present a more complicated tactile sensation can be provided by integrating and controlling a plurality of annular piezoelectric elements.
  • the plate-like member is translucent, and is disposed on the other main surface side of the plate-like member so as to correspond to the inner diameter range of the annular piezoelectric element.
  • the light emitting element may be further provided, and the range of the inner diameter of the annular piezoelectric element may be illuminated by the light emitting element.
  • the translucent mark can be made visible to the operator. For this reason, it is possible to provide a tactile sensation presentation device that is easy to understand the position where the operator should contact a finger or the like and that has high decorating properties.
  • the operation input device may include the above-described tactile sense presentation device and contact detection means for detecting an operator's contact with the plate-like member.
  • an operation input device having a function of presenting a haptic sense can be configured.
  • the contact detection means for example, a detection electrode for detecting the capacitance is arranged inside or around the annular piezoelectric element, and the contact of the operator is detected based on the detected change in the capacitance.
  • a so-called capacitive touch switch can be suitably applied.
  • the contact detection means in the operation input device detects contact based on a voltage generated in the electrode of the annular piezoelectric element in accordance with the bending of the plate-like member caused by the contact of the operator. It may be.
  • the piezoelectric element generates a voltage between the electrodes in response to deformation due to external force. Based on this voltage generated at the electrode of the annular piezoelectric element in the present invention, it is configured to detect the operator's contact, so that the annular piezoelectric element can be used for both the tactile presentation and the contact detection. Therefore, an operation input device having a reasonable configuration can be provided.
  • a presentation device and an operation input device can be provided.
  • a tactile sense presentation device 1 and an operation input device 2 according to an embodiment of the present invention will be described with reference to FIGS.
  • FIG. 1 is a diagram showing the configuration of the tactile sense presentation device 1 in plan view from the operation surface side.
  • FIG. 2 is a cross-sectional view of the haptic presentation device shown in FIG. For convenience of illustration, the dimensions of each part shown in FIG. 2 may be different from the actual ones.
  • the tactile sense presentation device 1 includes a plate-like member 11 and an annular piezoelectric element 12.
  • One surface of the plate-like member 11 (the upper surface in FIG. 2) is a flat surface, which is an operation surface that the operator touches.
  • the annular piezoelectric element 12 is firmly fixed to the other surface (the lower surface in FIG. 2) of the plate-like member 11 with an adhesive 13 such as an epoxy resin adhesive.
  • the plate-like member 11 is formed by forming a thin plate of an insulating resin such as acrylic or polycarbonate, and has flexibility.
  • the plate-like member 11 is not limited to a resin-made member, and various flexible thin plates such as a glass thin plate and a metal thin plate can be suitably applied.
  • a metal thin plate it is necessary to ensure insulation between the first electrode 12b of the annular piezoelectric element 12 to be described later by forming a layer of the adhesive 13 described above.
  • the annular piezoelectric element 12 has a base body 12a obtained by forming a known piezoelectric material such as lead zirconate titanate or lithium niobate in an annular shape, and upper and lower annular surfaces of the base body 12a.
  • the first electrode 12b and the second electrode 12c made of a metal such as silver or tin are formed to face each other.
  • the annular piezoelectric element 12 formed in this way is deformed so as to be reduced in diameter or expanded in accordance with the polarity of the voltage applied between the first electrode 12b and the second electrode 12c.
  • the electrodes of the annular piezoelectric element 12 are arranged on the inner circumferential wall surface and the outer circumferential wall surface of the annular piezoelectric element 12 in addition to the arrangement arranged on each of the opposed annular surfaces as in this embodiment. There may be a mode in which electrodes arranged on the annular surface, the inner peripheral wall surface, and the outer peripheral wall surface are used in combination.
  • the annular piezoelectric element 12 When a voltage of a predetermined polarity obtained by a drive voltage generation circuit (not shown) is applied between the first electrode 12b and the second electrode 12c of the annular piezoelectric element 12, the annular piezoelectric element 12 is deformed so as to be reduced in diameter. To do. Accordingly, the plate-like member 11 to which the annular piezoelectric element 12 is firmly fixed is forcibly bent. The bending of the plate-like member 11 at this time becomes a shape that forms a convex three-dimensional curved surface in which the central portion of the annular piezoelectric element 12 protrudes most.
  • the annular piezoelectric element 12 When a voltage having a polarity opposite to that of the above-described example is applied between the first electrode 12b and the second electrode 12c of the annular piezoelectric element 12, the annular piezoelectric element 12 is deformed so as to expand its diameter.
  • the bending of the plate-like member 11 at this time has a shape that forms a concave three-dimensional curved surface in which the central portion of the annular piezoelectric element 12 is depressed most.
  • the annular piezoelectric element 12 fixed to the flexible plate-like member 11 is deformed to reduce or expand its diameter.
  • the plate-like member 11 is directly and forcibly bent. Therefore, the amount of deflection of the plate-like member 11 at this time, that is, the amount of displacement is larger than the amount of displacement when the plate-like member 11 is indirectly generated via a medium or a pressure plate as in the prior art. Become. Therefore, a tactile sense can be clearly presented to the operator.
  • the biasing force generated by the bent plate-like member 11 against the operator's finger or the like in contact with the operation surface is larger than that of the conventional one. Become. Therefore, even when the operator is in a relatively strong contact and pressing the contact surface, the tactile sense can be clearly presented to the operator against the pressing force.
  • FIG. 3 is a diagram showing the configuration of the operation input device 2 in plan view from the operation surface side.
  • 4 is a BB cross-sectional view of the operation input device 2 shown in FIG.
  • the dimensions of each part shown in FIG. 4 may be different from the actual ones.
  • annular piezoelectric elements 22 are firmly fixed to one plate-like member 21 with an adhesive in the same manner as in the first embodiment.
  • a substrate 23 is provided. Since the annular piezoelectric element 22 has the same configuration as that described in detail in the first embodiment, description thereof is omitted.
  • the plate-like member 21 of the operation input device 2 is formed by forming a light-transmitting insulating resin such as acrylic or polycarbonate into a thin plate shape, and has flexibility.
  • the plate-like member 21 is not limited to a resin-made member, and for example, a flexible thin plate having various translucency, such as a glass thin plate, can be suitably applied. Moreover, if the illumination function mentioned later is unnecessary, the plate-shaped member 21 does not necessarily need to be a translucent thing, and all flexible thin plates can be applied suitably.
  • Arbitrary translucent marks may be arranged within the range of the inner diameter of each annular piezoelectric element 22 in the plate-like member 21.
  • the translucent mark By allowing the translucent mark to be transmitted and illuminated by the LED 24 as a light emitting element to be described later, the translucent mark can be visually recognized by the operator. Alternatively, the desired function can be easily understood and can be highly decorated.
  • the printed wiring board 23 is a known one, and is formed, for example, by etching a predetermined circuit pattern made of copper foil on a glass fiber cloth base epoxy resin laminated board.
  • the LED 24 illuminates the area of the inner diameter of the annular piezoelectric element 22.
  • the translucent mark is arranged within the range of the inner diameter of the annular piezoelectric element 22 as described above, the mark is transmitted and illuminated.
  • the printed wiring board 23 is formed with a voltage detection circuit (not shown) as a contact detection means, and is connected to the annular piezoelectric element 22.
  • the voltage detection circuit is a circuit for detecting a potential difference generated between the first electrode 12b and the second electrode 12c described above when the annular piezoelectric element 22 is deformed by an external force.
  • the voltage detection circuit detects a contact between the operator and the operation surface by detecting a potential difference generated in the annular piezoelectric element 22 at this time.
  • the contact detection means is not limited to the voltage detection circuit described above.
  • the contact detection means is detected by disposing a detection electrode for detecting electrostatic capacity inside or around the annular piezoelectric element 22.
  • a so-called capacitance type touch switch that detects an operator's contact based on a change in capacitance can be suitably applied.
  • various known contact detection methods can be suitably applied.
  • the printed wiring board 23 further includes a drive voltage generation circuit for generating a predetermined voltage to be applied to the annular piezoelectric element 22, and drive control for controlling the waveform and period of the voltage applied to the annular piezoelectric element 22.
  • a circuit and a connection switching circuit that selects a target to which a voltage is applied from among the four annular piezoelectric elements 22 and selects a target whose contact is to be detected by the voltage detection circuit are formed. (Neither shown)
  • the drive control circuit is configured to be able to set a specific voltage waveform or voltage application period corresponding to each annular piezoelectric element 22, and corresponds to each annular piezoelectric element 22. Can be assigned a unique tactile sense. This is preferable in that the operator can perceive the operation corresponding to which annular piezoelectric element 22 is accepted without visually recognizing the operation surface through the sense of touch.
  • the drive control circuit and the connection switching circuit integrally control the plurality of annular piezoelectric elements 22 in cooperation with each other, for example, supply voltages having different waveforms to the respective annular piezoelectric elements 22 or By providing a voltage having a predetermined waveform sequentially with a slight time difference to each annular piezoelectric element 22, a complicated tactile sensation that cannot be presented by one annular piezoelectric element is presented to the operator. be able to.
  • the present invention can be suitably used in tactile presentation devices and operation input devices used in various electronic devices or various home appliances.

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  • 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)
  • Position Input By Displaying (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

L'invention concerne un dispositif de présentation de sensation tactile avec lequel un opérateur peut être informé d'une acceptation d'une opération ou analogue en amenant un déplacement à se produire dans un écran d'opération. Le dispositif de présentation de sensation tactile est configuré de telle sorte que des éléments piézoélectriques en forme d'anneau, dans lesquels une déformation de contraction ou d'expansion des diamètres de celui-ci se produit par une tension appliquée à une électrode, sont fixés à un élément en forme de plaque flexible qu'un opérateur touche de telle sorte que l'élément en forme de plaque est amené à se courber en fonction de la déformation des éléments piézoélectriques en forme d'anneau. Un déplacement suffisamment grand peut ainsi être provoqué dans l'écran d'opération, et un opérateur peut ainsi être plus clairement informé d'une acceptation d'une opération ou similaire.
PCT/JP2018/025891 2018-03-24 2018-07-09 Dispositif de présentation de sensation tactile et dispositif d'entrée d'opération Ceased WO2019187182A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-057318 2018-03-24
JP2018057318A JP2019169009A (ja) 2018-03-24 2018-03-24 触覚提示装置および操作入力装置

Publications (1)

Publication Number Publication Date
WO2019187182A1 true WO2019187182A1 (fr) 2019-10-03

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PCT/JP2018/025891 Ceased WO2019187182A1 (fr) 2018-03-24 2018-07-09 Dispositif de présentation de sensation tactile et dispositif d'entrée d'opération

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023132331A (ja) * 2022-03-10 2023-09-22 株式会社デンソーテン 振動シートおよび再生システム

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11212725A (ja) * 1998-01-26 1999-08-06 Idec Izumi Corp 情報表示装置および操作入力装置
JP2007334857A (ja) * 2006-05-15 2007-12-27 Seiko Epson Corp 操作信号生成装置
WO2010058538A1 (fr) * 2008-11-21 2010-05-27 日本電気株式会社 Dispositif de retour de force
JP2012069042A (ja) * 2010-09-27 2012-04-05 Stanley Electric Co Ltd タッチパネル入力装置の製造方法、圧電体素子及びタッチパネル入力装置
JP2015153406A (ja) * 2014-02-19 2015-08-24 Fdk株式会社 触感伝達装置
JP2017162468A (ja) * 2016-03-07 2017-09-14 イマージョン コーポレーションＩｍｍｅｒｓｉｏｎ Ｃｏｒｐｏｒａｔｉｏｎ 触覚表面要素のためのシステム及び方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11212725A (ja) * 1998-01-26 1999-08-06 Idec Izumi Corp 情報表示装置および操作入力装置
JP2007334857A (ja) * 2006-05-15 2007-12-27 Seiko Epson Corp 操作信号生成装置
WO2010058538A1 (fr) * 2008-11-21 2010-05-27 日本電気株式会社 Dispositif de retour de force
JP2012069042A (ja) * 2010-09-27 2012-04-05 Stanley Electric Co Ltd タッチパネル入力装置の製造方法、圧電体素子及びタッチパネル入力装置
JP2015153406A (ja) * 2014-02-19 2015-08-24 Fdk株式会社 触感伝達装置
JP2017162468A (ja) * 2016-03-07 2017-09-14 イマージョン コーポレーションＩｍｍｅｒｓｉｏｎ Ｃｏｒｐｏｒａｔｉｏｎ 触覚表面要素のためのシステム及び方法

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