WO2023159440A1 - 振动面板及触控显示装置 - Google Patents

振动面板及触控显示装置 Download PDF

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Publication number
WO2023159440A1
WO2023159440A1 PCT/CN2022/077758 CN2022077758W WO2023159440A1 WO 2023159440 A1 WO2023159440 A1 WO 2023159440A1 CN 2022077758 W CN2022077758 W CN 2022077758W WO 2023159440 A1 WO2023159440 A1 WO 2023159440A1
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WO
WIPO (PCT)
Prior art keywords
vibration
piezoelectric
touch display
fixed base
piezoelectric device
Prior art date
Application number
PCT/CN2022/077758
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English (en)
French (fr)
Inventor
陈右儒
Original Assignee
京东方科技集团股份有限公司
北京京东方技术开发有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方技术开发有限公司 filed Critical 京东方科技集团股份有限公司
Priority to CN202280000263.5A priority Critical patent/CN116940916A/zh
Priority to PCT/CN2022/077758 priority patent/WO2023159440A1/zh
Priority to US18/016,264 priority patent/US20240246115A1/en
Publication of WO2023159440A1 publication Critical patent/WO2023159440A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
    • B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
    • B06B1/0629—Square array
    • 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
    • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
    • H02N2/0075—Electrical details, e.g. drive or control circuits or methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/50—Application to a particular transducer type
    • B06B2201/55—Piezoelectric transducer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/143—Touch sensitive instrument input devices
    • B60K2360/1434—Touch panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/816—Fastening of displays or touch screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/25—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using haptic output
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels

Definitions

  • the present disclosure relates to the technical field of tactile feedback, in particular to a vibration panel and a touch display device.
  • Haptics Tactile feedback (Haptics) is the focus of current technology development. Specifically, haptic feedback can enable the terminal to interact with the human body through the sense of touch. Haptic feedback can be divided into two categories, one is vibration feedback, and the other is tactile reproduction technology.
  • An embodiment of the present disclosure provides a vibrating panel and a touch display device, and the specific solutions are as follows:
  • a piezoelectric device located on the fixed base, the piezoelectric device is configured to generate an inverse piezoelectric effect and vibrate under the action of an alternating voltage signal;
  • a vibration transmission structure is located on the piezoelectric device, and the vibration transmission structure is configured to transmit the force generated when the piezoelectric device vibrates.
  • the fixed base is a metal base, a glass base, a ceramic base or a printed circuit board.
  • the vibration transmission structure is located in the central area of the piezoelectric device.
  • the density of the vibration transmission structure is greater than 0.01 g/cm 3 .
  • the material of the vibration transmission structure includes foam glue.
  • the above vibration panel provided by the embodiments of the present disclosure further includes a fixing structure connected to the side of the fixing base, and the fixing structure includes screws or glue.
  • the above vibration panel provided by the embodiments of the present disclosure further includes a first adhesive layer between the piezoelectric device and the fixed base, the first adhesive layer is used for The piezoelectric device and the fixed base are connected.
  • the above-mentioned vibrating panel provided by the embodiments of the present disclosure further includes: a conductive connection part located at the edge of the piezoelectric device, and a conductive connection part located between the piezoelectric devices and located at the The first adhesive layer is away from the flexible circuit board on the side of the fixed base; the piezoelectric device is electrically connected to the flexible circuit board through the conductive connection part.
  • the surface of the vibration transmission structure facing away from the fixed base is higher than the surface of the flexible circuit board facing away from the fixed base.
  • the material of the conductive connection part includes conductive cloth, conductive resin or silver glue.
  • the piezoelectric device includes a first electrode, a piezoelectric layer, and a second electrode stacked in sequence, the first electrode is grounded, The second electrode is electrically connected to the flexible circuit board through the conductive connection part.
  • the piezoelectric layer material includes lead zirconate titanate, aluminum nitride, zinc oxide, barium titanate, lead titanate, niobium At least one of potassium niobate, lithium niobate, lithium tantalate, and gallium lanthanum silicate.
  • the vibration panel provided by the embodiments of the present disclosure, there are multiple piezoelectric devices, and the piezoelectric devices are evenly distributed.
  • the piezoelectric device is disposed at four corners of the fixed base and at a central position of the fixed base.
  • the fixed base is provided with multiple rows and multiple columns of the piezoelectric devices arranged in an array.
  • the piezoelectric device arrangement unit includes four piezoelectric device arrangement units arranged in a square shape. The piezoelectric device and one piezoelectric device located at the center of the square.
  • the piezoelectric device is disposed at the center of each side of the fixed base.
  • an embodiment of the present disclosure also provides a touch display device, including: the above-mentioned vibrating panel provided by the embodiment of the present disclosure, and a touch display panel stacked with the vibrating panel; wherein, the touch The touch surface of the display panel is far away from the vibration panel, the vibration transmission structure of the vibration panel is arranged in contact with the touch display panel, and the vibration transmission structure of the vibration panel is configured to transmit the force generated by the vibration of the piezoelectric device It is transmitted to the touch display panel to make the touch display panel resonate to realize tactile feedback.
  • the touch display panel includes a bottom frame, a backlight module, a liquid crystal display module, a touch A group and a cover plate, the peripheral area of the side of the bottom frame facing the vibration panel has a second adhesive layer, the second adhesive layer is fixedly connected with the peripheral area of the fixed base, the vibration transmission structure is connected with the Bottom frame contact settings.
  • the material of the second adhesive layer is the same as that of the vibration transmission structure.
  • the touch display device is applied to a vehicle display, and the fixed base is fixed to the vehicle frame through the fixing structure of the vibration panel. superior.
  • FIG. 1 is a schematic structural diagram of a vibrating panel provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a piezoelectric device provided by an embodiment of the present disclosure
  • Figures 3-6 are schematic diagrams of several arrangements of piezoelectric devices
  • FIG. 7 is a schematic structural diagram of a touch display device provided by an embodiment of the present disclosure.
  • Fig. 8 is a schematic structural view of some film layers in Fig. 7;
  • FIG. 9 is a structural schematic diagram of vibration of a piezoelectric device driving a liquid crystal display module to vibrate
  • FIG. 10 is a schematic flow diagram of a touch display device implementing a tactile feedback function.
  • An embodiment of the present disclosure provides a vibrating panel, as shown in FIG. 1 , including:
  • the piezoelectric device 2 is located on the fixed base 1, and the piezoelectric device 2 is configured to generate an inverse piezoelectric effect and vibrate under the action of an alternating voltage signal;
  • the vibration transmission structure 3 is located on the piezoelectric device 2 , and the vibration transmission structure 3 is configured to transmit the force generated when the piezoelectric device 2 vibrates.
  • the above-mentioned vibration panel provided by the embodiments of the present disclosure can be applied to a vehicle-mounted display device.
  • the force generated when the device vibrates is transmitted to the touch display panel of the vehicle-mounted display device, driving the touch display panel to vibrate, and simultaneously realizing the effect of visual and tactile feedback when a human finger touches the touch display panel.
  • the fixed base may be, but not limited to, a metal base, a glass base, a ceramic base or a printed circuit board.
  • the vibration panel provided by the embodiments of the present disclosure is integrated into a vehicle-mounted display device, the fixed base is used to be fixed to the vehicle frame.
  • the metal base may be an aluminum shell base, a stainless steel base, etc., and the embodiment of the present disclosure uses the fixed base as the aluminum shell base.
  • the vibration transmission structure 3 is located in the central area of the piezoelectric device 2 . In this way, the force generated when the piezoelectric device 2 vibrates can be evenly transmitted, and the tactile feedback effect can be improved.
  • the vibration transmission structure 3 located in the central area of the piezoelectric device 2 may have a certain deviation range due to the influence of the manufacturing process.
  • the density of the vibration transmission structure 3 is greater than 0.01 g/cm 3 .
  • the hardness of the vibration transmission structure 3 is relatively large, which can ensure that the vibration transmission structure 3 can transmit the force generated when the piezoelectric device 2 vibrates. If the density is too small, the hardness of the vibration transmission structure 3 is small, and the vibration transmission effect may be poor. The problem.
  • the material of the vibration transmission structure 3 includes but not limited to foam glue.
  • the material of the vibration transmission structure 3 is foam rubber as an example, and of course other materials capable of transmitting the force generated when the piezoelectric device 2 vibrates can also be selected.
  • the thickness of the foam glue may be 0.1 mm-1 mm, and the foam glue may be adhered to the piezoelectric device through an adhesive layer.
  • the vibration panel provided by the embodiment of the present disclosure further includes a fixing structure 4 connected to the side of the fixing base 1, and the fixing structure 4 includes screws or glue.
  • the vibration panel can be fixed to the vehicle frame through the fixing structure 4 .
  • the first adhesive layer 5 may be back adhesive, and the thickness of the first adhesive layer 5 may be 0.05mm-0.1mm.
  • an adhesive layer 5 is away from the flexible circuit board 7 (FPC) on the side of the fixed base 1 ; the piezoelectric device 2 is electrically connected to the flexible circuit board 7 through the conductive connection part 6 .
  • the conductive connection part 6 can be conductive cloth or conductive glue.
  • the flexible circuit board 7 is provided with traces and golden finger structures for electrical connection with the external control circuit. The variable voltage signal is transmitted to the piezoelectric device 2.
  • FIG. 2 is a schematic structural view of the piezoelectric device 2 in Figure 1, the piezoelectric device 2 includes a first electrode 21, a piezoelectric layer 23 and a second electrode 22 that are stacked in sequence, the first electrode 21 Grounded, the second electrode 22 is electrically connected to the flexible circuit board 7 through the conductive connection part 6; the piezoelectric device 2 may also include: an insulating layer 8 located on the side of the second electrode 22 away from the piezoelectric layer 23, and an insulating layer 8 located on the side away from the insulating layer 8.
  • the wiring layer 9 on one side of the piezoelectric layer 23; the second electrode 22 can be electrically connected to the flexible circuit board 7 through the wiring layer 9 and the conductive connection part 6; wherein,
  • the insulating layer 8 has a first via hole V1 corresponding to the second electrode 22.
  • One end of the wiring layer 9 is electrically connected to the second electrode 22 through the first via hole V1, and the other end of the wiring layer 9 passes through the insulating layer 8.
  • the second via hole V2 is electrically connected to the conductive connection part 6 .
  • the first electrode 21 is grounded
  • the conductive connection part 6 is connected to the driving voltage input terminal (FPC)
  • the voltage signal input by the driving voltage input terminal is an alternating voltage signal
  • the alternating voltage is applied to the second electrode 22 through the driving voltage input terminal.
  • signal (V AC ) so that an alternating electric field can be formed between the second electrode 22 and the first electrode 21, and the frequency of the alternating electric field is the same as that of the alternating voltage signal.
  • the piezoelectric layer 23 Under the action of the alternating voltage signal, the piezoelectric layer 23 is deformed and vibrates, and the vibration transmission structure 3 transmits the force generated when the piezoelectric layer 23 vibrates
  • the second electrodes 22 of all the piezoelectric devices 2 are patterned structures corresponding to the piezoelectric layers 23 one-to-one.
  • the material of the piezoelectric layer can be lead zirconate titanate (Pb(Zr,Ti)O 3 , PZT), aluminum nitride (AlN), ZnO (zinc oxide), barium titanate (BaTiO 3 ), lead titanate (PbTiO 3 ), potassium niobate (KNbO 3 ), lithium niobate (LiNbO 3 ), lithium tantalate (LiTaO 3 ), gallium lanthanum silicate (La 3 Ga 5 SiO 14 ) at least
  • the material for making the piezoelectric layer can be selected according to the actual needs of those skilled in the art, and is not limited here.
  • PZT when PZT is used to make the piezoelectric layer, since PZT has a high piezoelectric coefficient, the piezoelectric characteristics of the corresponding vibration panel are guaranteed, and the corresponding vibration panel can be applied to the tactile feedback device, and PZT has a high Light transmittance, when it is integrated into a display device, does not affect the display quality of the display device.
  • the first electrode and the second electrode of the piezoelectric device can be made of indium tin oxide (ITO), can also be made of indium zinc oxide (IZO), can also be made of titanium gold (Ti -Au) alloy, titanium-aluminum-titanium (Ti-Al-Ti) alloy, titanium-molybdenum (Ti-Mo) alloy, in addition, it can also be made of titanium (Ti), gold (Au), silver ( Ag), molybdenum (Mo), copper (Cu), tungsten (W), chromium (Cr), those skilled in the art can set the above-mentioned electrodes according to the needs of practical applications, which is not limited here.
  • the material of the wiring layer may be Ti/Ni/Au.
  • the surface of the vibration transmission structure 3 away from the fixed base 1 is higher than the surface of the flexible circuit board 7 away from the fixed base 1 .
  • an adhesive layer can be provided on the surface of the vibration transmission structure 3 away from the fixed base 1, and the vibration panel and the touch display panel can pass through the vibration transmission structure 3.
  • the upper glue layer is fixed.
  • the material of the conductive connection part 6 includes but is not limited to conductive cloth, conductive resin or silver glue.
  • the materials of the piezoelectric layer include lead zirconate titanate, aluminum nitride, zinc oxide, barium titanate, lead titanate, potassium niobate, lithium niobate , lithium tantalate, gallium lanthanum silicate at least one.
  • Fig. 3-Fig. 6 are schematic plan views of the fixed base 1 and the piezoelectric device 2 in Fig. 1,
  • the number of piezoelectric devices 2 can be multiple, and the piezoelectric devices 2 are evenly distributed.
  • the uniformly distributed piezoelectric device 2 can drive the touch display panel to vibrate evenly when vibrating, which can ensure that when a human finger touches any position of the touch display panel , can achieve tactile feedback.
  • piezoelectric devices 2 may be provided at the four corners of the fixed base 1 and at the center of the fixed base 1 .
  • the fixed base 1 may be provided with multiple rows and multiple columns of piezoelectric devices 2 arranged in an array. Specifically, the number of rows and the number of columns of piezoelectric devices 2 may be the same.
  • the piezoelectric device arrangement units A there may be at least two piezoelectric device arrangement units A on the fixed base 1, and the piezoelectric device arrangement units A include Four piezoelectric devices 2 and one piezoelectric device 2 in the center of the square.
  • a piezoelectric device 2 may be provided at the center of each side of the fixed base 1 .
  • Fig. 3-Fig. 6 are only several arrangements of the piezoelectric devices 2 provided by the embodiments of the present disclosure, and of course they are not limited thereto, as long as the piezoelectric devices 2 are evenly arranged on the fixed base 1.
  • the arrangement of the piezoelectric devices must preferably be centrally symmetrical.
  • the above-mentioned touch panel provided by the embodiments of the present disclosure may also include other film layers well known to those skilled in the art, which will not be described in detail here.
  • the vibration panel provided by the embodiments of the present disclosure can be applied to fields such as medical treatment, automotive electronics, and motion tracking systems. Specifically, the vibration panel can be applied to devices that can generate vibration and mechanical properties, such as vehicles.
  • an embodiment of the present disclosure also provides a touch display device, as shown in FIG. Panel 200; wherein, the touch surface B of the touch display panel 200 is far away from the vibration panel 100, the vibration transmission structure 3 of the vibration panel 100 is arranged in contact with the touch display panel 200, and the vibration transmission structure 3 of the vibration panel 100 is configured to convert piezoelectric The force generated by the vibration of the device 2 is transmitted to the touch display panel 200 to cause the touch display panel 200 to resonate to realize tactile feedback.
  • the touch display device can be any product or component with display or touch function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, and the like.
  • the above-mentioned touch display device adopts an integrated structure of the vibration panel 100 and the touch display panel 200 to realize the touch function (such as determining the touch position) and the tactile reproduction function.
  • the peripheral area of the bottom frame 20 facing the side of the vibrating panel 100 has a second adhesive layer 25, the second adhesive layer 25 is fixedly connected with the peripheral area of the fixed base 1, and the vibration transmission structure 3 and The bottom frame 20 is provided in contact.
  • the vibration transmission structure 3 is connected to the bottom frame 20 through an adhesive layer.
  • Foam glue in the above-mentioned touch display device provided by the embodiment of the present disclosure, as shown in FIG. Foam glue, of course, is not limited to this.
  • the touch display device provided by the embodiment of the present disclosure can be applied to a vehicle display.
  • Structure 4 is fixed on the vehicle frame.
  • connection between the backlight module 21 and the liquid crystal display module 22 can be carried out by gluing, and epoxy is used to connect the display plastic frame.
  • the above-mentioned touch display device provided by the embodiments of the present disclosure may also include other film layers well known to those skilled in the art, which will not be described in detail here.
  • Figure 8 is a schematic diagram of the structure of some film layers in the touch display device shown in Figure 7, and Figure 9 shows that the vibration of the piezoelectric device in the structure shown in Figure 8 drives the liquid crystal display module 22 to vibrate Figure 10 is a schematic flow chart of realizing the tactile feedback function.
  • the piezoelectric device 2 Under the action of the alternating voltage signal, the piezoelectric device 2 undergoes an inverse piezoelectric effect to generate vibration, that is, a vibration displacement is generated in the z-axis direction; finally, the vibration is transmitted through the vibration transmission structure 3 The force is transmitted to the liquid crystal display module 22 to drive the liquid crystal display module 22 to vibrate to realize the tactile feedback function.
  • the piezoelectric device 2 when a human finger presses the surface of the cover plate 24, the finger exerts a downward pressure F on the liquid crystal display module 22, and when the piezoelectric device 2 is driven by an alternating voltage signal, the piezoelectric device 2 will be deformed, and the deformation will be A force F PZT is generated. If the alternating voltage signal is a 1/2 cycle sine wave signal, the direction of this F PZT is opposite to that of the pressure F. If several continuous sine waves are applied to the piezoelectric device 2, the force F PZT is non-directional, half of which is the same as the pressure F, and half of which is opposite to the pressure F.
  • the liquid crystal display module 22 when a finger touches, the liquid crystal display module 22 will generate a tilt vibration state, so the finger can feel the vibration to form a tactile feedback.
  • the vibration waveform can be an electrical signal with the same cycle frequency and voltage, but can also be a phase difference signal with different cycle frequency and voltage.
  • the touch display device provided by the embodiments of the present disclosure can realize the functions of vision, tactile reproduction and touch force detection.
  • the touch position of the human body can be determined through the touch display device, so as to generate corresponding vibration waveforms, amplitudes and frequencies, and human-computer interaction can be realized.
  • the touch display device can also be applied in fields such as medical care, automotive electronics, and motion tracking systems according to actual needs, which will not be described in detail here.
  • Embodiments of the present disclosure provide a vibrating panel and a touch display device.
  • the vibrating panel can be applied to a vehicle-mounted display device.
  • the vibration transmission structure transmits the force generated when the piezoelectric device vibrates to the touch display panel of the vehicle-mounted display device, drives the touch display panel to vibrate, and simultaneously realizes the effect of visual and tactile feedback when a human finger touches the touch display panel.

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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)
  • Mechanical Engineering (AREA)
  • Position Input By Displaying (AREA)

Abstract

本公开实施例提供了一种振动面板及触控显示装置，该振动面板包括：固定基底；压电器件，位于固定基底上，压电器件被配置为在交变电压信号的作用下产生逆压电效应发生振动；振动传递结构，位于压电器件上，振动传递结构被配置为传递压电器件振动时产生的力。

Description

振动面板及触控显示装置 技术领域
本公开涉及触觉反馈技术领域，特别涉及一种振动面板及触控显示装置。
背景技术
触觉反馈(Haptics)为现今科技开发的重点，具体地，触觉反馈能够透过触觉，使终端跟人体产生交互。触觉反馈又可以分为两类，一类为振动反馈，一类为触觉再现技术。
表面触觉再现技术可以通过裸指触控屏幕来感知物体特性，在多媒体终端实现高效自然的交互，具有巨大的研究价值，因而得到国内外研究学者的广泛关注。表面触觉物理意义上，为物体表面粗糙度与皮肤(指尖)的表面产生作用，因表面结构不同而形成不同的摩擦力。因此透过控制表面摩擦力，即可实现不同触觉/触感之模拟。
发明内容
本公开实施例提供了一种振动面板及触控显示装置，具体方案如下：
本公开实施例提供的一种振动面板，包括：
固定基底；
压电器件，位于所述固定基底上，所述压电器件被配置为在交变电压信号的作用下产生逆压电效应发生振动；
振动传递结构，位于所述压电器件上，所述振动传递结构被配置为传递所述压电器件振动时产生的力。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述固定基底为金属基底、玻璃基底、陶瓷基底或印制电路板。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所 述振动传递结构位于所述压电器件的中心区域。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述振动传递结构的密度大于0.01g/cm 3。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述振动传递结构的材料包括泡棉胶。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，还包括与所述固定基底侧边连接的固定结构，所述固定结构包括螺丝或黏胶。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，还包括位于所述压电器件和所述固定基底之间的第一胶层，所述第一胶层用于连接所述压电器件和所述固定基底。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，还包括：位于所述压电器件边缘位置的导电连接部，以及位于所述压电器件之间且位于所述第一胶层背离所述固定基底一侧的柔性电路板；所述压电器件通过所述导电连接部与所述柔性电路板电连接。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述振动传递结构背离所述固定基底的表面高于所述柔性电路板背离所述固定基底的表面。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述导电连接部的材料包括导电布、导电树脂或银胶。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述压电器件包括依次层叠设置的第一电极、压电层和第二电极，所述第一电极接地，所述第二电极通过所述导电连接部与所述柔性电路板电连接。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述压电层的材料包括锆钛酸铅、氮化铝、氧化锌、钛酸钡、钛酸铅、铌酸钾、铌酸锂、钽酸锂、硅酸镓镧中的至少一种。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述压电器件的数量为多个，且各所述压电器件均匀分布。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述固定基底的四个拐角处以及所述固定基底的中心位置处设置有所述压电器件。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述固定基底上设置有阵列排布的多行多列所述压电器件。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述固定基底上具有至少两个压电器件排列单元，所述压电器件排列单元包括呈方形排列四个所述压电器件以及位于所述方形中心的一个所述压电器件。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，所述固定基底的每一侧边的中心位置设置有所述压电器件。
相应地，本公开实施例还提供了一种触控显示装置，包括：本公开实施例提供的上述振动面板，以及与所述振动面板叠层设置的触控显示面板；其中，所述触控显示面板的触摸面远离所述振动面板，所述振动面板的振动传递结构与所述触控显示面板接触设置，所述振动面板的振动传递结构被配置为将所述压电器件振动产生的力传递至所述触控显示面板，使所述触控显示面板发生共振，实现触觉反馈。
在一种可能的实现方式中，在本公开实施例提供的上述触控显示装置中，所述触控显示面板包括依次叠层设置的底框、背光模组、液晶显示模组、触控模组和盖板，所述底框面向所述振动面板一侧的周边区域具有第二胶层，所述第二胶层与所述固定基底的周边区域固定连接，所述振动传递结构与所述底框接触设置。
在一种可能的实现方式中，在本公开实施例提供的上述触控显示装置中，所述第二胶层的材料与所述振动传递结构的材料相同。
在一种可能的实现方式中，在本公开实施例提供的上述触控显示装置中，所述触控显示装置应用于车载显示，所述固定基底通过所述振动面板的固定结构固定于车架上。
附图说明
图1为本公开实施例提供的一种振动面板的结构示意图；
图2为本公开实施例提供的压电器件的结构示意图；
图3-图6分别为压电器件的几种排布示意图；
图7为本公开实施例提供的一种触控显示装置的结构示意图；
图8为图7中部分膜层的结构示意图；
图9为压电器件振动带动液晶显示模组振动的结构示意图；
图10为触控显示装置实现触觉反馈功能的流程示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。并且在不冲突的情况下，本公开中的实施例及实施例中的特征可以相互组合。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“内”、“外”、“上”、“下”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
需要注意的是，附图中各图形的尺寸和形状不反映真实比例，目的只是示意说明本公开内容。并且自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。
本公开实施例提供了一种振动面板，如图1所示，包括：
固定基底1；
压电器件2，位于固定基底1上，压电器件2被配置为在交变电压信号的作用下产生逆压电效应发生振动；
振动传递结构3，位于压电器件2上，振动传递结构3被配置为传递压电器件2振动时产生的力。
本公开实施例提供的上述振动面板，可以将该振动面板应用在车载显示装置中，在压电器件在交变电压信号的作用下产生逆压电效应发生振动时，通过振动传递结构将压电器件振动时产生的力传递给车载显示装置的触控显示面板，带动触控显示面板振动，在人手指触摸触控显示面板时，同时实现视觉触觉反馈的效果。
在具体实施时，在本公开实施例提供的上述振动面板中，固定基底可以为但不限于金属基底、玻璃基底、陶瓷基底或印制电路板。具体地，当将本公开实施例提供的振动面板集成在车载显示装置中时，固定基底用于与车架固定。
具体地，金属基底可以为铝壳基底、不锈钢基底等，本公开实施例以固定基底为铝壳基底。
在具体实施时，在本公开实施例提供的上述振动面板中，如图1所示，振动传递结构3位于压电器件2的中心区域。这样可以均匀的传递压电器件2振动时产生的力，提高触觉反馈效果。
需要说明的是，振动传递结构3位于压电器件2的中心区域由于工艺制作的影响，可以具有一定的偏差范围。
在具体实施时，在本公开实施例提供的上述振动面板中，如图1所示，振动传递结构3的密度大于0.01g/cm 3。这样振动传递结构3的硬度较大，可以保证振动传递结构3可以传递压电器件2振动时产生的力，若密度太小，振动传递结构3的硬度较小，可能会出现振动传递效果不佳的问题。
具体地，振动传递结构3的材料包括但不限于泡棉胶。本公开实施例是 以振动传递结构3的材料为泡棉胶为例，当然还可以选择其他能够传递压电器件2振动时产生的力的材料。
具体地，泡棉胶的厚度可以为0.1mm-1mm，泡棉胶可以通过黏胶层黏附于压电器件上方。
在具体实施时，在本公开实施例提供的上述振动面板中，如图1所示，还包括与固定基底1侧边连接的固定结构4，固定结构4包括螺丝或黏胶。具体地，当本公开实施例提供的振动面板用于在车载显示时，振动面板可以通过固定结构4与车架固定。
在具体实施时，在本公开实施例提供的上述振动面板中，如图1所示，还包括位于压电器件2和固定基底1之间的第一胶层5，第一胶层5用于连接压电器件2和固定基底1。具体地，第一胶层5可以是背胶，第一胶层5的厚度可以为0.05mm-0.1mm。
在具体实施时，在本公开实施例提供的上述振动面板中，如图1所示，还包括：位于压电器件2边缘位置的导电连接部6，以及位于压电器件2之间且位于第一胶层5背离固定基底1一侧的柔性电路板7(FPC)；压电器件2通过导电连接部6与柔性电路板7电连接。具体地，导电连接部6可以为导电布或导电胶，柔性电路板7上设置有走线与金手指结构，用于与外部控制电路电连接，外部控制电路用于通过柔性电路板7将交变电压信号传递给压电器件2。
如图2所示，图2为图1中压电器件2的具体结构示意图，该压电器件2包括依次层叠设置的第一电极21、压电层23和第二电极22，第一电极21接地，第二电极22通过导电连接部6与柔性电路板7电连接；压电器件2还可以包括：位于第二电极22背离压电层23一侧的绝缘层8，以及位于绝缘层8背离压电层23一侧的走线层9；第二电极22具体可以通过走线层9、导电连接部6与柔性电路板7电连接；其中，
绝缘层8具有与第二电极22对应设置的第一过孔V1，走线层9的一端通过第一过孔V1与第二电极22电连接，走线层9的另一端通过贯穿绝缘层 8的第二过孔V2与导电连接部6电连接。具体地，第一电极21接地，导电连接部6连接驱动电压输入端(FPC)，驱动电压输入端输入的电压信号为交变电压信号，通过驱动电压输入端向第二电极22加载交变电压信号(V AC)，这样在第二电极22和第一电极21之间可以形成交变电场，交变电场的频率与交变电压信号的频率相同。在交变电压信号的作用下，压电层23发生形变并产生振动，振动传递结构3将压电层23振动时产生的力传递给触控显示面板，实现触觉再现。
需要说明的是，图1中所有压电器件2的第一电极21可以为图案化的结构，也可以为一整面的结构；所有压电器件2的压电层23为图案化的结构，所有压电器件2的第二电极22为与压电层23一一对应的图案化结构。
在具体实施时，压电层的材料可以为锆钛酸铅(Pb(Zr,Ti)O 3，PZT)，还可以为氮化铝(AlN)、ZnO(氧化锌)、钛酸钡(BaTiO 3)、钛酸铅(PbTiO 3)、铌酸钾(KNbO 3)、铌酸锂(LiNbO 3)、钽酸锂(LiTaO 3)、硅酸镓镧(La 3Ga 5SiO 14)中的至少一种，具体可以根据本领域技术人员的实际使用需要来选择制作压电层的材料，在此不做限定。其中，在使用PZT制成压电层时，由于PZT具有高压电系数，保证了相应的振动面板的压电特性，可以将相应的振动面板应用到触觉反馈器件中，而且PZT具有较高的透光性，在将其集成到显示器件中时，不影响显示器件的显示质量。
在具体实施过程中，压电器件的第一电极和第二电极可以是由氧化铟锡(ITO)制成，还可以是由氧化铟锌(IZO)制成，还可以是由钛金(Ti-Au)合金、钛铝钛(Ti-Al-Ti)合金、钛钼(Ti-Mo)合金中的一种制成，此外，还可以是由钛(Ti)、金(Au)、银(Ag)、钼(Mo)、铜(Cu)、钨(W)、铬(Cr)中的一种制成，本领域技术人员可以根据实际应用需要来设置上述电极，在此不做限定。
在具体实施时，在本公开实施例提供的上述振动面板中，走线层的材料可以为Ti/Ni/Au。
在一种可能的实现方式中，在本公开实施例提供的上述振动面板中，如 图1所示，振动传递结构3背离固定基底1的表面高于柔性电路板7背离固定基底1的表面。这样在将本公开实施例提供的振动面板与触控显示面板集成时，可以通过在振动传递结构3背离固定基底1一侧的表面设置胶层，振动面板与触控显示面板通过振动传递结构3上的胶层固定。
在具体实施时，在本公开实施例提供的上述振动面板中，如图1所示，导电连接部6的材料包括但不限于导电布、导电树脂或银胶。
在具体实施时，在本公开实施例提供的上述振动面板中，压电层的材料包括锆钛酸铅、氮化铝、氧化锌、钛酸钡、钛酸铅、铌酸钾、铌酸锂、钽酸锂、硅酸镓镧中的至少一种。
在具体实施时，在本公开实施例提供的上述振动面板中，如图1、图3-图6所示，图3-图6为图1中固定基底1和压电器件2的平面示意图，压电器件2的数量可以为多个，且各压电器件2均匀分布。当本公开实施例提供的振动面板与车载显示的触控显示面板集成时，均匀分布的压电器件2振动时可以带动触控显示面板均匀振动，可以保证人手指触摸触控显示面板的任意位置时，都能实现触觉反馈。
在具体实施时，在本公开实施例提供的上述振动面板中，如图3所示，可以是固定基底1的四个拐角处以及固定基底1的中心位置处设置有压电器件2。
在具体实施时，在本公开实施例提供的上述振动面板中，如图4所示，可以是固定基底1上设置有阵列排布的多行多列压电器件2。具体地，压电器件2的行数和列数可以相同。
在具体实施时，在本公开实施例提供的上述振动面板中，如图5所示，可以是固定基底1上具有至少两个压电器件排列单元A，压电器件排列单元A包括呈方形排列四个压电器件2以及位于方形中心的一个压电器件2。
在具体实施时，在本公开实施例提供的上述振动面板中，如图6所示，可以是固定基底1的每一侧边的中心位置设置有压电器件2。
需要说明的是，图3-图6仅是本公开实施例提供的几种压电器件2的排 列方式，当然不限于此，只要压电器件2在固定基底1上均匀排布即可。
需要说明的是，若固定基底为标准方型或矩形，压电器件的排布必优选为中心对称设置。
在具体实施时，本公开实施例提供的上述触控面板还可以包括本领域技术人员熟知的其他膜层，在此不做详述。
本公开实施例提供的振动面板可应用于医疗，汽车电子，运动追踪系统等领域。具体地，可以将振动面板应用于车载等可产生振动和力学特性的装置中。
基于同一发明构思，本公开实施例还提供了一种触控显示装置，如图7所示，包括：本公开实施例提供的上述振动面板100，以及与振动面板100叠层设置的触控显示面板200；其中，触控显示面板200的触摸面B远离振动面板100，振动面板100的振动传递结构3与触控显示面板200接触设置，振动面板100的振动传递结构3被配置为将压电器件2振动产生的力传递至触控显示面板200，使触控显示面板200发生共振，实现触觉反馈。
由于该触控显示装置解决问题的原理与前述一种振动面板相似，因此该触控显示装置的实施可以参见前述振动面板的实施，重复之处不再赘述。该触控显示装置可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示或触控功能的产品或部件。
本公开实施例提供的上述触控显示装置，通过采用振动面板100和触控显示面板200集成的结构，可以实现触控功能(例如判断触摸位置)以及触觉再现功能。
在具体实施时，在本公开实施例提供的上述触控显示装置中，如图7所示，触控显示面板200包括依次叠层设置的底框20、背光模组21、液晶显示模组22、触控模组23和盖板24，底框20面向振动面板100一侧的周边区域具有第二胶层25，第二胶层25与固定基底1的周边区域固定连接，振动传递结构3与底框20接触设置。
具体地，振动传递结构3与底框20之间通过胶层连接。
在具体实施时，在本公开实施例提供的上述触控显示装置中，如图7所示，第二胶层25的材料可以与振动传递结构的材料相同，即第二胶层25的材料为泡棉胶，当然不限于此。
在具体实施时，在本公开实施例提供的上述触控显示装置中，如图7所示，本公开实施例提供的触控显示装置可以应用于车载显示，固定基底1通过振动面板100的固定结构4固定于车架上。
在具体实施时，背光模组21与液晶显示模组22间连接可以采用胶合进行，使用环氧连接显示胶框。
在具体实施时，上述背光模组21、液晶显示模组22、触控模组23的具体结构均与现有技术相同，在此不做详细说明。
在具体实施时，本公开实施例提供的上述触控显示装置还可以包括本领域技术人员熟知的其他膜层，在此不做详述。
下面对本公开实施例提供的触控显示装置应用于车载领域时，对实现触觉反馈功能的原理进行说明。
如图8-图10所示，图8为图7所示的触控显示装置中部分膜层结构示意图，图9为图8所示结构中的压电器件发生振动带动液晶显示模组22振动的结构示意图，图10为实现触觉反馈功能的流程示意图。
首先，给触控模组23加载触控信号，人手指按压盖板24表面，根据触控模组23中触控膜层反馈的电信号确定手指在触控显示面板上的触摸位置(即确定X-Y坐标)，同时压电器件2受到手指按压时发生正压电效应产生电信号，通过该电信号可以检测手指触摸力的大小；然后，通过外部控制电路(例如MCU)给压电器件2施加交变电压信号，驱动压电器件2，压电器件2在交变电压信号的作用下发生逆压电效应产生振动，即在z轴方向产生振动位移；最后，通过振动传递结构3将该振动的力传递给液晶显示模组22，带动液晶显示模组22振动，实现触觉反馈功能。
需要说明的是，人手指按压盖板24表面时，手指给予液晶显示模组22向下的压力F，当交变电压信号驱动压电器件2时，压电器件2会产生形变，此形 变会产生一力F PZT，若交变电压信号为1/2周期正弦波信号，此F PZT与压力F方向相反。若给压电器件2加载数个连续正弦波，则力F PZT为不定向，一半与压力F相同，一半与压力F相反。
具体地，如图9所示，手指触摸时，液晶显示模组22会发生倾斜振动态，因此手指能感觉到振动形成触觉反馈，当产生触觉反馈时，至少大于等于1个压电器件2产生力学振动。且若有多个压电器件2振动时，振动波形可为相同周期频率电压的电信号，但也可为不同周期频率与电压的相位差信号。
综上所述，本公开实施例提供的触控显示装置可以实现视觉、触觉再现以及触摸力检测的功能。
在具体实施时，通过触控显示装置可以确定人体触控的位置，从而产生对应的振动波形、振幅和频率，可以实现人机交互。当然，还可以根据实际需要将触控显示装置应用在医疗，汽车电子，运动追踪系统等领域，在此不再详述。
本公开实施例提供了一种振动面板及触控显示装置，可以将该振动面板应用在车载显示装置中，在压电器件在交变电压信号的作用下产生逆压电效应发生振动时，通过振动传递结构将压电器件振动时产生的力传递给车载显示装置的触控显示面板，带动触控显示面板振动，在人手指触摸触控显示面板时，同时实现视觉触觉反馈的效果。
尽管已描述了本公开的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本公开范围的所有变更和修改。
显然，本领域的技术人员可以对本公开实施例进行各种改动和变型而不脱离本公开实施例的精神和范围。这样，倘若本公开实施例的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (21)

  1. 一种振动面板，其中，包括：
    固定基底；
    压电器件，位于所述固定基底上，所述压电器件被配置为在交变电压信号的作用下产生逆压电效应发生振动；
    振动传递结构，位于所述压电器件上，所述振动传递结构被配置为传递所述压电器件振动时产生的力。
  2. 如权利要求1所述的振动面板，其中，所述固定基底为金属基底、玻璃基底、陶瓷基底或印制电路板。
  3. 如权利要求1所述的振动面板，其中，所述振动传递结构位于所述压电器件的中心区域。
  4. 如权利要求1所述的振动面板，其中，所述振动传递结构的密度大于0.01g/cm 3。
  5. 如权利要求4所述的振动面板，其中，所述振动传递结构的材料包括泡棉胶。
  6. 如权利要求1-5任一项所述的振动面板，其中，还包括与所述固定基底侧边连接的固定结构，所述固定结构包括螺丝或黏胶。
  7. 如权利要求1-5任一项所述的振动面板，其中，还包括位于所述压电器件和所述固定基底之间的第一胶层，所述第一胶层用于连接所述压电器件和所述固定基底。
  8. 如权利要求7所述的振动面板，其中，还包括：位于所述压电器件边缘位置的导电连接部，以及位于所述压电器件之间且位于所述第一胶层背离所述固定基底一侧的柔性电路板；所述压电器件通过所述导电连接部与所述柔性电路板电连接。
  9. 如权利要求8所述的振动面板，其中，所述振动传递结构背离所述固定基底的表面高于所述柔性电路板背离所述固定基底的表面。
  10. 如权利要求8所述的振动面板，其中，所述导电连接部的材料包括导电布、导电树脂或银胶。
  11. 如权利要求8所述的振动面板，其中，所述压电器件包括依次层叠设置的第一电极、压电层和第二电极，所述第一电极接地，所述第二电极通过所述导电连接部与所述柔性电路板电连接。
  12. 如权利要求11所述的振动面板，其中，所述压电层的材料包括锆钛酸铅、氮化铝、氧化锌、钛酸钡、钛酸铅、铌酸钾、铌酸锂、钽酸锂、硅酸镓镧中的至少一种。
  13. 如权利要求1-12任一项所述的振动面板，其中，所述压电器件的数量为多个，且各所述压电器件均匀分布。
  14. 如权利要求13所述的振动面板，其中，所述固定基底的四个拐角处以及所述固定基底的中心位置处设置有所述压电器件。
  15. 如权利要求13所述的振动面板，其中，所述固定基底上设置有阵列排布的多行多列所述压电器件。
  16. 如权利要求13所述的振动面板，其中，所述固定基底上具有至少两个压电器件排列单元，所述压电器件排列单元包括呈方形排列四个所述压电器件以及位于所述方形中心的一个所述压电器件。
  17. 如权利要求13所述的振动面板，其中，所述固定基底的每一侧边的中心位置设置有所述压电器件。
  18. 一种触控显示装置，其中，包括：如权利要求1-17任一项所述的振动面板，以及与所述振动面板叠层设置的触控显示面板；其中，所述触控显示面板的触摸面远离所述振动面板，所述振动面板的振动传递结构与所述触控显示面板接触设置，所述振动面板的振动传递结构被配置为将所述压电器件振动产生的力传递至所述触控显示面板，使所述触控显示面板发生共振，实现触觉反馈。
  19. 如权利要求18所述的触控显示装置，其中，所述触控显示面板包括依次叠层设置的底框、背光模组、液晶显示模组、触控模组和盖板，所述底 框面向所述振动面板一侧的周边区域具有第二胶层，所述第二胶层与所述固定基底的周边区域固定连接，所述振动传递结构与所述底框接触设置。
  20. 如权利要求19所述的触控显示装置，其中，所述第二胶层的材料与所述振动传递结构的材料相同。
  21. 如权利要求18-20任一项所述的触控显示装置，其中，所述触控显示装置应用于车载显示，所述固定基底通过所述振动面板的固定结构固定于车架上。
PCT/CN2022/077758 2022-02-24 2022-02-24 振动面板及触控显示装置 WO2023159440A1 (zh)

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CN110568960A (zh) * 2019-09-04 2019-12-13 昆山龙朋精密电子有限公司 一种压电触控反馈装置
CN213122903U (zh) * 2020-08-31 2021-05-04 华为技术有限公司 触觉反馈装置及电子设备

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Publication number Priority date Publication date Assignee Title
TW201101137A (en) * 2009-06-29 2011-01-01 J Touch Corp Touch panel with matrix type tactile feedback
CN107203273A (zh) * 2017-07-20 2017-09-26 京东方科技集团股份有限公司 触控基板及驱动方法、显示面板及驱动方法
CN110568960A (zh) * 2019-09-04 2019-12-13 昆山龙朋精密电子有限公司 一种压电触控反馈装置
CN213122903U (zh) * 2020-08-31 2021-05-04 华为技术有限公司 触觉反馈装置及电子设备

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