WO2021092753A1 - Module de rétroaction haptique, écran tactile, clavier et appareil électronique - Google Patents

Module de rétroaction haptique, écran tactile, clavier et appareil électronique Download PDF

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Publication number
WO2021092753A1
WO2021092753A1 PCT/CN2019/117465 CN2019117465W WO2021092753A1 WO 2021092753 A1 WO2021092753 A1 WO 2021092753A1 CN 2019117465 W CN2019117465 W CN 2019117465W WO 2021092753 A1 WO2021092753 A1 WO 2021092753A1
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WO
WIPO (PCT)
Prior art keywords
elastic
tactile feedback
feedback module
layer
columnar
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Application number
PCT/CN2019/117465
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English (en)
Chinese (zh)
Inventor
胡盛棚
于国华
汪祥
李艳强
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南昌欧菲显示科技有限公司
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Priority to PCT/CN2019/117465 priority Critical patent/WO2021092753A1/fr
Publication of WO2021092753A1 publication Critical patent/WO2021092753A1/fr

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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
    • 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

Definitions

  • This application relates to the field of touch technology, and in particular to a tactile feedback module, a touch screen, a keyboard, and an electronic device.
  • the traditional keyboard is mainly a rubber membrane keyboard, which includes an elastic mechanism, a surface (key frame) and a key cap.
  • the key cap and the key frame are used to protect the elastic mechanism.
  • the contacts of the elastic mechanism are composed of three layers of plastic films overlapped together. Among them, the upper and lower layers of plastic films are respectively covered with film wires, and contacts are provided at the key contact positions of the upper and lower layers of plastic film respectively. ;
  • the middle layer of plastic film does not contain wires, and a round hole is provided at the position of the button contact.
  • the middle layer is used to insulate the upper and lower conductive films. Under normal circumstances, the upper and lower conductive films are separated by the middle layer and will not conduct. After the upper film is pressed, it will communicate with the lower film at the position of the opening to generate a button electrical signal.
  • the traditionally designed keyboard uses the keycap and elastic mechanism to cooperate with the finger force to achieve contact pressing and rebound feedback. Because the material itself is less elastic, the finger pressing reaction force fed back by the keycap is a mechanical force. It is blunt, unable to give feedback to the fingers a feeling of rebounding when pressed, and unable to give different touch and pressure feedback forces to the fingers according to different user environments or different key letters, which makes the user experience poor.
  • the material used in the traditional keyboard is generally rubber, and the key travel is limited by its own structure and basically cannot be changed.
  • the traditional keyboard structure is an independent split design for a single button, which makes it difficult to seamlessly connect between the buttons.
  • the gap between the buttons will increase with the extension of the use time. A lot of tiny granular dust accumulates under the action of electrostatic adsorption, which affects the appearance and reduces the user experience. effect.
  • a tactile feedback module a touch screen, a keyboard, and an electronic device are provided.
  • a tactile feedback module includes at least two layers of elastic force control elements stacked in sequence.
  • the elastic force control element includes a thin film insulation layer, an elastic layer, and a thin film insulation layer and an elastic layer that are stacked in sequence.
  • the conductive electrode layer, the thin film insulating layer of one elastic force control element among the adjacent elastic force control elements is adjacent to the elastic layer of the other elastic force control element, the elastic layer includes mutually independent columnar elastic bodies, and the elastic layer is divided At least one elastic force control area is provided with a plurality of columnar elastic bodies, and the sparse and dense distribution of the columnar elastic bodies in each elastic force control area is uneven.
  • a touch screen including the tactile feedback module according to any one of the embodiments of the present application, is used to generate columnar elastic bodies in the elastic layer under the action of electric field force when the touch screen senses a touch pressure Vibration feedback.
  • a keyboard includes the tactile feedback module according to any one of the embodiments of the present application, the tactile feedback module is used for keys, and is used for when the keys sense a touch pressure, in the elastic layer
  • the columnar elastic body generates vibration feedback under the action of the electric field force.
  • An electronic device includes the tactile feedback module according to any one of the embodiments of the present application.
  • the above-mentioned tactile feedback module utilizes the advantages that the columnar elastic body can easily deform elastically under force and generate vibration under the action of electric field force.
  • the elastic layer is divided into multiple elastic control regions , And set the density distribution of the columnar elastic body in the elastic force control area to conform to the finger contact model, so that the finger can obtain uniform reaction force at different contact positions, and improve the uniformity of the user's tactile feedback.
  • the tactile feedback vibration effect of the cylindrical elastic body in different elastic control areas can be controlled according to the different needs of different application scenarios. Since the thickness of the tactile feedback module is mainly derived from the thickness of the elastic layer, the overall thickness of the tactile feedback module is effectively reduced.
  • FIG. 1 is a schematic diagram of the structure of an elastic force control element in a tactile feedback module in an embodiment of the application.
  • FIG. 2 is a schematic diagram of the structure of a tactile feedback module in an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of a tactile feedback module in another embodiment of the application.
  • FIG. 4 is a schematic diagram of driving signals of a tactile feedback module in an embodiment of the application.
  • 5a-5c are schematic diagrams of the dynamic changes of the columnar elastic body under the action of the driving signal in FIG. 4.
  • Fig. 6 is a schematic structural diagram of a keyboard in an embodiment of the application.
  • FIG. 7 is a schematic structural diagram of an electronic device in an embodiment of the application.
  • the lower surface of the thin-film insulating layer refers to the side of the thin-film insulating layer away from the user.
  • connection should be interpreted broadly unless otherwise clearly specified and limited. For example, it can be a fixed connection or a detachable connection. , Or integrally connected; it can be a direct connection, or an indirect connection through an intermediate medium, or a connection between two components.
  • connection should be interpreted broadly unless otherwise clearly specified and limited. For example, it can be a fixed connection or a detachable connection. , Or integrally connected; it can be a direct connection, or an indirect connection through an intermediate medium, or a connection between two components.
  • a tactile feedback module includes at least two layers of elastic force control elements stacked in sequence, and the elastic force control element includes a thin film insulating layer, an elastic layer, and an elastic layer that are sequentially stacked.
  • the thin film insulating layer and the conductive electrode layer between the elastic layer, the thin film insulating layer of one elastic force control element in the adjacent elastic force control elements is adjacent to the elastic layer of the other elastic force control element, and the elastic layers include mutually independent
  • the columnar elastic body is divided into at least one elasticity control area provided with a columnar elastic body on the elastic layer, and the sparse and dense distribution of the columnar elastic body in each elasticity control area is uneven.
  • the tactile feedback module in the above-mentioned embodiment, the advantage that the columnar elastic body can easily deform and vibrate under the action of the electric field force is used.
  • the elastic layer is divided into Multiple elastic force control areas are created, and the density distribution of the columnar elastic body in the elastic force control area is set to conform to the finger contact model, so that the fingers can obtain uniform reaction force at different contact positions, and the uniformity of the user's tactile feedback is improved.
  • the tactile feedback vibration effect of the cylindrical elastic body in different elastic control areas can be controlled according to the different needs of different application scenarios. Since the thickness of the tactile feedback module is mainly derived from the thickness of the elastic layer, the overall thickness of the tactile feedback module is effectively reduced.
  • a capacitive sensor is formed between adjacent conductive electrode layers, which can sense the pressure signal applied to it.
  • the capacitive sensor includes an upper conductive electrode layer, a lower conductive electrode layer, and an elastic layer located between the upper conductive electrode layer and the lower conductive electrode layer.
  • the elastic layer includes a plurality of columnar elastic bodies, and the density distribution of the columnar elastic bodies conforms to the finger Contact the model. When the finger touches the capacitive sensor, the columnar elastic body is compressed, and the distance between the upper conductive electrode layer and the lower conductive electrode layer becomes smaller. When the columnar elastic body deforms the most, the gap between the upper conductive electrode layer and the lower conductive electrode layer The adsorption force is also the largest.
  • the compressed cylindrical elastic body receives the largest electric field force.
  • the compressed cylindrical elastic body rebounds to an uncompressed deformation state, and vibrates under the action of the electric field force.
  • the feeling that is fed back to the hand is tactile feedback . Because the finger has an arc-shaped surface, when the finger presses on the product, different positions of the finger will get different tactile sensations.
  • the electric field force F (U2*K* ⁇ r*S1)/(d2*Y*S2), where U is the driving voltage applied to both ends of the product, K is the electrostatic force constant, and ⁇ r is the capacitance sensor S1 is the effective area of the electric field, d is the distance between the upper conductive electrode layer and the lower conductive electrode layer, Y is the elastic modulus of the columnar elastomer, and S2 is the cross-sectional area of the columnar elastomer, so
  • the density distribution of the columnar elastic body in the elastic force control area is designed to conform to the form of the finger contact model, so that when the finger actually touches the product, the tactile feedback vibration sensation obtained at different contact positions is more uniform.
  • the columnar elastic bodies in the same elastic force control element are arranged in an array, and the shape of the columnar elastic bodies in the elastic layer is presented by the dense and dense distribution of the columnar elastic bodies. It reflects the density distribution law of the columnar elastic body in the elastic layer. By observing the density distribution of the columnar elastic body in the elastic layer, not only the density distribution of the columnar elastic body can be seen, but also the distribution law of the columnar elastic body in different regions in the elastic layer can be understood.
  • the columnar elastic bodies in the same elastic force control element are arranged in an array, which is convenient for setting the sparse and densely distributed shape of the columnar elastic bodies in the elastic force control area to conform to the shape of the finger contact surface, so as to meet the user's demand for uniformity of tactile feedback effects.
  • each elastic force control area corresponds to a finger contact area
  • the distribution density of the columnar elastic body in the middle of the elastic force control area corresponds to the elastic force
  • the distribution density of the columnar elastic body around the control area is different.
  • the reaction force obtained by different fingers when pressing the button is uniform, the uniformity of tactile feedback is improved, and the actual needs of finger touch are met.
  • the area of each elastic force control area matches the area of a finger contact area, so that when the user touches different elastic force control areas on the tactile feedback module with a finger, a uniform tactile feedback vibration feeling can be obtained, and
  • the positions of different elastic control areas can be distinguished by touch and pressure. For example, when an elastic control area is used for a key, the positions of different keys can be distinguished by finger touch.
  • the shape formed by the distribution of the columnar elastic bodies in the elastic force control area is at least one of an ellipse, a square, a circle, and a diamond.
  • the thin-film insulating layer is preferably made of a flexible material, so that the tactile feedback module is flexible.
  • the thickness of the elastic layer is 20-100um, so that the columnar elastic body in the elastic layer can meet the demand of the tactile feedback module for its vibration effect, and meet the demand of reducing the overall thickness of the tactile feedback module.
  • the number of layers of the elastic control element is 2-40 layers, so that the vibration effect of the elastic layer in the tactile feedback module can meet the requirements of the tactile feedback module for its vibration effect, and meet the overall requirements of the tactile feedback module Need for thickness reduction.
  • the orthographic projections of the columnar elastic bodies in the adjacent elastic layers on the plane of the conductive electrode layer overlap, so that the columnar elastic bodies in the adjacent elastic layers overlap
  • the body has a point of direct force transmission along the direction perpendicular to the horizontal plane, so that the vibrations of the columnar elastic bodies in adjacent elastic layers can be superimposed on each other, so as to improve the tactile feedback effect of the tactile feedback module.
  • the conductive electrode layer is made of transparent conductive materials, such as ITO, ZnO, carbon nanotubes, graphene, etc.; it can also be made of non-transparent conductive materials. It is necessary to control the size of the conductive material to realize that the human eyes are not affected by these conductive electrode layers when observing the display content of the product using the tactile feedback module.
  • the aforementioned conductive material may be selected from at least one of conductive materials such as silver paste, carbon paste, nano silver wire, PEDOT, carbon nanotube, and graphene conductive materials.
  • the conductive electrode layer may include a conductive electrode or an electrode array.
  • the electrode array of the upper conductive electrode layer and the electrode array of the lower conductive electrode layer can consist of multiple independent strip electrodes, or multiple chains connected with multiple electrode blocks, or independent of each other.
  • the block electrode is constructed.
  • the orthographic projection of the electrode array of the upper conductive electrode layer and the electrode array of the lower conductive electrode layer in the plane of the elastic layer has a certain area of intersection, thereby forming a number of capacitive sensors.
  • the thin-film insulation layer may be composed of an independent transparent film, and the film may be made of polyimide (PI) or polyethylene terephthalate (Polyethylene Terephalate). , PET), polyethylene naphthalate (PEN) and other materials.
  • PI polyimide
  • PEN polyethylene naphthalate
  • the material used for the elastic layer may be silicone rubber, acrylate elastomer, polyurethane elastomer, nitrile rubber, vinylidene fluorinated trifluoroethylene and their corresponding At least one of organic-inorganic or organic-organic composite materials and the like.
  • the elastic layer is optically transparent in a macroscopic view, allowing light to pass through, and on the premise of not obstructing the content display, "transparent” can be understood as “transparent” and “substantially transparent” in this application.
  • a keyboard which includes any of the tactile feedback modules described in the embodiments of the present application, and the tactile feedback module is used for keys and is used for sensing touch on the keys.
  • the columnar elastic body in the elastic layer generates vibration under the action of the electric field force, so that the vibration is fed back to the user who touches the button.
  • a tactile feedback module can be used as a key in the keyboard, and different keys can be applied with different driving voltages, so that different vibration feedback effects can be obtained when different keys are touched.
  • the elastic force control element includes a thin-film insulating layer 11, an elastic layer 12, and a conductive electrode layer 13, and the conductive electrode layer 13 Located between the thin film insulating layer 11 and the elastic layer 12, the conductive electrode layer 13 includes a conductive electrode, the conductive electrode pulls out the electrode terminal 14, the elastic layer 12 includes mutually independent columnar elastic bodies 121, and the elastic layer 12 is divided into a device There is an elastic force control area of a columnar elastic body, and the density distribution of the columnar elastic body 121 in the elastic force control area conforms to the finger contact model, and a tactile feedback is formed by superimposing and connecting at least two elastic force control elements as shown in FIG. 1
  • the module makes the reaction force obtained by touching different parts of the contact surface of the tactile feedback module by a finger consistent, improves the uniformity of tactile feedback, and meets the actual needs of finger touch.
  • the density distribution of the columnar elastic bodies 121 in the middle 122 of an elastic force control region is different from the density distribution of the columnar elastic bodies 121 at the periphery 123 of the region. Since the finger contact surface is arcuate, the distribution density of the columnar elastic body in the elastic force control area conforms to the shape of the finger contact surface.
  • the tactile feedback module made by superimposing the elastic control element is used as a button, a uniform tactile feedback effect can be obtained in the finger contact area. It is also possible to apply different driving voltages to different keys, so that the user can easily perceive the specific position of the keys through the tactile feedback effect of the keyboard, and at the same time, different keys can be distinguished according to the tactile feedback effect of different keys.
  • the shape of the density distribution of the columnar elastic bodies 121 in the elastic layer 12 reflects the density distribution law of the columnar elastic bodies 121 in the elastic layer 12.
  • the density distribution of the columnar elastic bodies 121 in the elastic layer 12 presents a rectangle.
  • the distribution density of the columnar elastic bodies 121 in the middle of the elastic layer can be set to be smaller than the distribution density of the columnar elastic bodies 121 around the elastic layer.
  • the distribution shape of the columnar elastomer in the elastic layer can be at least one of an ellipse, square, circle, or diamond shape, and the density distribution law of the columnar elastomer can be used according to the specific application of the product. Set according to the different needs of the scene.
  • FIG. 2 is a schematic diagram of the structure of the tactile feedback module in an embodiment of the application, including an elastic force control element 10 constituting a laminated structure.
  • the structure of the elastic force control element 10 is shown in FIG. 1, that is, it includes a thin-film insulating layer 11 and an elastic layer. 12 and the conductive electrode layer 13, the conductive electrode layer 13 is located between the thin film insulating layer 11 and the elastic layer 12, the conductive electrode in the conductive electrode layer 13 pulls out the electrode terminal 14, and the elastic layer 12 includes mutually independent columnar elastic bodies 121, The density distribution of the columnar elastic body 121 conforms to the finger contact model, so that the reaction force obtained by different fingers when pressing the button is uniform, the uniformity of the tactile feedback is improved, and the actual demand for finger touch is met.
  • the thickness of the elastic layer 12 is 20 um-100 um, so that the columnar elastic body 121 in the elastic layer 12 can meet the demand of the tactile feedback module for its vibration effect, and meet the demand of reducing the overall thickness of the tactile feedback module.
  • the number of layers of the elastic control element is 2-40 layers, so that the vibration effect of the elastic layer in the tactile feedback module can meet the needs of the tactile feedback module for its vibration effect, and meet the overall thickness reduction of the tactile feedback module Small demand.
  • FIG. 3 is a schematic diagram of the structure of the tactile feedback module in an embodiment of the application, and the conductive electrode layer is respectively connected to the elastic layer and the thin film insulating layer.
  • the connection between the conductive electrode layer and the elastic layer may be adhesive bonding, preferably double-sided adhesive and/or water-based adhesive.
  • Adjacent elastic control elements 10 cover the contact connection to form a fixed integrated structure. Adjacent elasticity control elements can be glued with glue, preferably double-sided glue and/or water glue.
  • the fixed integrated structure design can avoid the separation of product components during the vibration process of the product and reduce the service life of the product, and the fixed structure can also enhance the vibration feeling.
  • the contact surface between the electrode and the user is made of non-conductive materials to provide insulation and protection. At the same time, it can be separated from the outside air to avoid electrode oxidation and can play a role in waterproofing.
  • FIG. 5a, 5b and 5c are schematic diagrams of the dynamic change of the columnar elastic body under the action of the driving signal as shown in FIG. 4.
  • Fig. 5a shows the initial state of the columnar elastic body
  • Fig. 5b shows that when the electric field force is the largest, the columnar elastic body is subjected to the maximum electric field force and produces the greatest elastic deformation
  • Fig. 5c shows that the electric field force is gradually reduced, and the columnar elastic body relies on Its own rebounding force slowly rebounds to its original state.
  • the working principle of the tactile feedback module in the embodiment of the present application will be briefly described below in conjunction with FIG. 5a, FIG. 5b and FIG. 5c.
  • the columnar elastomer is shown in Figure 5a, and it has not deformed to its original state; at T1-T2, the electric field force is gradually increasing, and the electrostatic adsorption between adjacent conductive electrode layers Gradually increase, a gradually increasing electric field force is generated on the columnar elastic body; at T2, the electric field force is the largest, and the adsorption force between adjacent conductive electrode layers is also the largest. At this time, the deformation of the columnar elastic body is also the largest, as shown in Figure 5b. Shown.
  • the driving input signal is basically 0, and there is basically no electric field force between adjacent conductive electrode layers, so there is no electrostatic adsorption force, and the columnar elastic body maintains its original state.
  • the driving signal includes a periodically changing signal shown between T1-T4.
  • the frequency of the driving signal shown in FIG. 4 is preferably 50 Hz.
  • the frequency of the input signal may be 20 Hz-200 Hz, or According to different user needs, input driving signals of different frequencies. For example, if users want to experience a stronger vibration, they can increase the signal frequency.
  • the input signal changes periodically, and the columnar elastic body changes periodically from 0 to the maximum deformation.
  • the feeling that is fed back to the user's hand is tactile feedback.
  • FIG. 6 is a schematic structural diagram of a keyboard provided in an embodiment of the application, and one of the keys may adopt the tactile feedback module as shown in FIG. 3.
  • the finger contact surface is arc-shaped, when the finger touches the upper surface of the keyboard keys, the tactile feedback generated by the different contact positions of the finger contact surface is different, so that the density distribution of the cylindrical elastic body on the entire surface of the elastic layer is designed to conform to
  • the finger contact model for example, may have different distribution densities of the columnar elastic bodies in the middle and the periphery of the elastic layer, so that the tactile feedback vibration sensation fed back by the tactile feedback module to the finger contact surface is relatively uniform, and the user experience is better.
  • each letter or key is pulled out the corresponding electrode terminal, and different driving signals are input respectively, so that each key can be used to input different driving according to the user's experience requirements.
  • Voltage to obtain different tactile feedback For example, if you want to improve the user's touch feedback effect on the "Enter” key, you can increase the frequency and/or amplitude of the driving voltage signal applied to the tactile feedback module 20 in the key , So that when the user touches the "Enter” key, they can feel a stronger tactile feedback effect.
  • the conductive electrode layer can be made on a transparent substrate by sputtering, evaporation, printing, etc., such as polyethylene terephthalate (PET), poly Polycarbonate (PC), glass and other transparent film materials.
  • the electrode pattern of the conductive electrode layer can be obtained by etching of indium tin oxide conductive film (ITO film), screen printing conductive paste on PET, or by using a metal wire mesh (Metal wire mesh) process.
  • the conductive electrode layer can also be directly fabricated on the surface of the thin film insulating layer, that is, the conductive layer can be plated/sputtered on the thin film insulating layer first, and then the electrode of the capacitance sensor can be fabricated. pattern.
  • This application uses the advantages of elastic bodies that can easily deform and vibrate under force.
  • the density distribution of the columnar elastic bodies in the elastic layer is designed to conform to the shape of the finger contact model, so that The fingers obtain uniform reaction force at different contact positions, which improves the uniformity of the user's tactile feedback.
  • the structural design of laminated elastic control elements effectively reduces the thickness of the product.
  • the membrane keyboard using the tactile feedback module described in the embodiments of the present application overturns the structural design of the traditional key-type keyboard, and has many advantages such as thin thickness, bendable, no key gap, beautiful appearance, and good tactile feedback effect.
  • the electronic device provided may be a smart watch, a mobile phone camera, a tablet computer camera, a smart wearable device, and so on.
  • the electronic device using the membrane keyboard described in the embodiment of the present application has a better tactile feedback effect.

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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)

Abstract

L'invention concerne un module de rétroaction haptique, comprenant au moins deux couches d'éléments de commande élastiques empilés en séquence ; les éléments de commande élastiques comprennent chacun une couche isolante de film mince, une couche d'électrode conductrice et une couche élastique stratifiée en séquences ; la couche isolante de film mince de l'un des éléments de commande élastiques adjacents est adjacente à la couche élastique de l'autre élément de commande élastique ; la couche élastique comprend des corps élastiques en colonne indépendants les uns des autres ; la couche élastique est divisée en au moins une zone de commande élastique pourvue d'une pluralité de corps élastiques en colonne, et la distribution de densité des corps élastiques en colonne dans chaque zone de commande élastique est irrégulière. En divisant la couche élastique en de multiples zones de commande élastiques, et en réglant la distribution de densité des corps élastiques en colonne dans la zone de commande élastique pour se conformer à un modèle de contact de doigt, le doigt peut obtenir une force de réaction uniforme à différentes positions de contact, ce qui améliore la détection uniforme de la rétroaction tactile de l'utilisateur.
PCT/CN2019/117465 2019-11-12 2019-11-12 Module de rétroaction haptique, écran tactile, clavier et appareil électronique WO2021092753A1 (fr)

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PCT/CN2019/117465 WO2021092753A1 (fr) 2019-11-12 2019-11-12 Module de rétroaction haptique, écran tactile, clavier et appareil électronique

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102576250A (zh) * 2009-08-18 2012-07-11 英默森公司 使用复合压电致动器的触觉反馈
CN103502908A (zh) * 2011-01-18 2014-01-08 拜耳知识产权有限责任公司 无框致动器设备、系统和方法
CN103930964A (zh) * 2011-11-15 2014-07-16 诺基亚公司 具有电触觉反馈的小键盘
EP2908222B1 (fr) * 2014-02-14 2018-08-22 Samsung Display Co., Ltd. Dispositif électronique pour fournir des sensations tactiles
WO2018172622A2 (fr) * 2017-07-14 2018-09-27 Senseg Oy Structure d'élément actif

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102576250A (zh) * 2009-08-18 2012-07-11 英默森公司 使用复合压电致动器的触觉反馈
CN103502908A (zh) * 2011-01-18 2014-01-08 拜耳知识产权有限责任公司 无框致动器设备、系统和方法
CN103930964A (zh) * 2011-11-15 2014-07-16 诺基亚公司 具有电触觉反馈的小键盘
EP2908222B1 (fr) * 2014-02-14 2018-08-22 Samsung Display Co., Ltd. Dispositif électronique pour fournir des sensations tactiles
WO2018172622A2 (fr) * 2017-07-14 2018-09-27 Senseg Oy Structure d'élément actif

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