WO2023028756A1 - 触觉反馈装置、显示设备和触觉反馈方法 - Google Patents

触觉反馈装置、显示设备和触觉反馈方法 Download PDF

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Publication number
WO2023028756A1
WO2023028756A1 PCT/CN2021/115325 CN2021115325W WO2023028756A1 WO 2023028756 A1 WO2023028756 A1 WO 2023028756A1 CN 2021115325 W CN2021115325 W CN 2021115325W WO 2023028756 A1 WO2023028756 A1 WO 2023028756A1
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WIPO (PCT)
Prior art keywords
touch
area
tactile feedback
unit
signal
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PCT/CN2021/115325
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English (en)
French (fr)
Inventor
陶永春
陈右儒
王迎姿
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 CN202180002339.3A priority Critical patent/CN117255985A/zh
Priority to US17/787,404 priority patent/US20240184365A1/en
Priority to PCT/CN2021/115325 priority patent/WO2023028756A1/zh
Publication of WO2023028756A1 publication Critical patent/WO2023028756A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
    • 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
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
    • B06B1/0246—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal
    • B06B1/0253—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal taken directly from the generator circuit
    • 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
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • 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
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Definitions

  • the present disclosure relates to the technical field of touch display, and in particular to a tactile feedback device, a display device and a tactile feedback method.
  • touch operation has penetrated into every aspect of people's life, and many electronic products, including mobile terminals, personal computers, electrical equipment, etc., already support the touch function.
  • the main methods of the human sensing system include vision, hearing, and touch.
  • vision, hearing, and touch At present, the means of sensing and presenting vision and hearing are relatively mature.
  • the current demand for tactile feedback is increasing. Realizing realistic haptic feedback at the same time is an urgent problem to be solved.
  • the present disclosure aims to solve at least one of the technical problems existing in the prior art, and proposes a tactile feedback device, a display device and a tactile feedback method.
  • an embodiment of the present disclosure provides a tactile feedback device, which is divided into a sensing area and a feedback area surrounding the sensing area;
  • the tactile feedback device includes: a substrate, disposed on the A touch unit on the base substrate and located in the sensing area, a piezoelectric unit located in the feedback area, and a tactile feedback driving module;
  • the tactile feedback drive module is configured to determine a touch position according to the touch data in response to the touch data acquired through the touch unit; at least determine a corresponding drive signal according to the touch area where the touch position is located, And input the driving signal to the piezoelectric unit to drive the piezoelectric unit to generate tactile feedback.
  • the tactile feedback drive module includes: a data analysis unit, a signal determination unit, and a signal generation unit;
  • the data analysis unit is configured to determine the touch action type and the touch position according to the touch data in response to the touch data acquired through the touch control unit;
  • the signal determination unit is configured to determine the drive signal according to the touch area where the touch position is located and the touch action type;
  • the signal generation unit is used to generate and output the drive signal.
  • the signal determination unit is configured to determine that the driving signal is a first high in response to the touch area where the touch position is located is an object edge area and the touch action type is a slide type. frequency continuous wave signal.
  • the signal determination unit is configured to determine that the drive signal is a low-frequency square wave in response to the touch area where the touch position is located is an internal area of an object and the type of the touch action is a press type. Pulse signal.
  • the signal determination unit is configured to determine that the driving signal is a second high frequency in response to the touch area where the touch position is located is a stripe area and the touch action type is a sliding type continuous wave signal.
  • the piezoelectric unit includes: a first electrode, a piezoelectric film, and a second electrode that are sequentially stacked along a direction away from the base substrate.
  • the tactile feedback driving module is specifically configured to apply the driving signal between the first electrode and the second electrode of the piezoelectric unit, so as to drive the piezoelectric unit to generate Haptic feedback.
  • the touch control unit includes a plurality of touch electrodes and a plurality of sensing electrodes, and an interlayer insulating layer disposed between the layer where the plurality of touch electrodes are located and the layer where the plurality of sensing electrodes are located layer; the orthographic projections of the plurality of touch electrodes and the plurality of sensing electrodes on the base substrate intersect;
  • the plurality of touch electrodes are arranged on the same layer as the first electrodes, and the plurality of sensing electrodes are arranged on the same layer as the second electrodes.
  • the distance between the piezoelectric unit and the sensing region is greater than or equal to 100 microns.
  • At least two opposite sides of the sensing region are provided with a plurality of piezoelectric units.
  • a plurality of piezoelectric units are uniformly arranged around the sensing area.
  • an embodiment of the present disclosure further provides a display device, which includes:
  • an embodiment of the present disclosure further provides a tactile feedback method applied to a tactile feedback device, where the tactile feedback device is divided into a sensing area and a feedback area surrounding the sensing area; the tactile feedback device includes : a base substrate, a touch unit disposed on the base substrate and located in the sensing area and a piezoelectric unit located in the feedback area;
  • the methods include:
  • a corresponding drive signal is determined at least according to the touch area where the touch position is located, and the drive signal is input to the piezoelectric unit to drive the piezoelectric unit to generate tactile feedback.
  • the determining the touch position according to the touch data in response to the touch data acquired through the touch unit includes:
  • the determining the corresponding drive signal at least according to the touch area where the touch position is located, and inputting the drive signal to the piezoelectric unit includes:
  • the driving signal is determined according to the touch area where the touch position is located and the touch action type.
  • the determining the drive signal according to the touch area where the touch position is located and the touch action type includes:
  • the drive signal is a first high-frequency continuous wave signal
  • the drive signal is a low-frequency square wave pulse signal
  • the driving signal is a second high-frequency continuous wave signal.
  • FIG. 1 is a schematic structural diagram of a tactile feedback device provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a piezoelectric unit provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic cross-sectional view of another tactile feedback device provided by an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a tactile feedback drive module provided by an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another tactile feedback device provided by an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another tactile feedback device provided by an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another tactile feedback device provided by an embodiment of the present disclosure.
  • FIG. 8 is a flow chart of a tactile feedback method provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of an interactive interface of a display device provided by an embodiment of the present disclosure.
  • FIG. 10 is a flow logic diagram of a software control plane of a display device provided by an embodiment of the present disclosure.
  • FIG. 11 is a flow chart for displaying the working state of a device provided by an embodiment of the present disclosure.
  • FIG. 1 is a schematic structural diagram of a tactile feedback device provided by an embodiment of the present disclosure. As shown in Figure 1, the tactile feedback device is divided into a sensing area 2 and a feedback area 3 surrounding the sensing area 2; 2, the piezoelectric unit 31 located in the feedback area 3, and the tactile feedback drive module 41.
  • the tactile feedback drive module 41 is used to respond to the touch data obtained by the touch unit 21, determine the touch position according to the touch data; at least determine the corresponding drive signal according to the touch area where the touch position is located, and send 31 inputs the drive signal to drive the piezoelectric unit 31 to generate tactile feedback.
  • the base substrate 1 is a glass substrate.
  • Figure 1 only shows the relative position and area relationship of each component, which is not used to reflect the size relationship, component number, line relationship, etc. of each component, and it will not limit the technical solution of the present disclosure.
  • FIG. 2 is a schematic structural diagram of a piezoelectric unit provided by an embodiment of the present disclosure. As shown in FIG. 2 , the piezoelectric unit includes: a first electrode 311 , a piezoelectric film 312 and a second electrode 313 .
  • the first electrode 311, the piezoelectric film 312 and the second electrode 313 are sequentially stacked in a direction away from the substrate; in some embodiments, the piezoelectric film 312 can be a PZT piezoelectric film, a piezoelectric sheet, etc. .
  • the tactile feedback driving module is specifically configured to load a driving signal between the first electrode 311 and the second electrode 313 of the piezoelectric unit, so as to drive the piezoelectric unit to generate tactile feedback.
  • FIG. 3 is a schematic cross-sectional view of another tactile feedback device provided by an embodiment of the present disclosure. As shown in FIG. 3 , it shows the substrate 1 in the tactile feedback device, the touch unit 21 disposed on the substrate 1 , and the piezoelectric unit 31 .
  • the touch control unit 21 includes a plurality of touch electrodes and a plurality of sensing electrodes, which are located on the touch electrode layer 213 and the sensing electrode layer 211 respectively, and the plurality of touch electrodes and the plurality of sensing electrodes are located on the positive side of the base substrate 1.
  • the feedback area of the tactile feedback device is provided with a plurality of piezoelectric units 31, as shown in Figure 3, which are arranged on two opposite sides of the sensing area; each piezoelectric
  • the structure of the unit 31 is shown in FIG. 2 , including a first electrode 311 , a piezoelectric film 312 and a second electrode 313 .
  • the first electrode 311 is disposed on the same layer as the touch electrode layer 213, and the second electrode 313 is disposed on the same layer as the sensing electrode layer 211; in some embodiments, the first electrode 311 can be disposed on the same layer as the touch electrode layer 213 Set based on a multiplexing structure; in some embodiments, the second electrode 313 and the sensing electrode layer 211 can be set based on a multiplexing structure.
  • the touch electrodes are also called touch drive electrodes; specifically, in the working state, according to the preset scan period, scan signals are input to the plurality of touch electrodes row by row, and according to the sensing electrodes The output signal is acquired to obtain touch data, and mutual capacitance touch sensing is realized.
  • the touch unit 21 further includes an interlayer insulating layer 212 disposed between the touch electrode layer 213 and the sensing electrode layer 211 , and an interlayer insulating layer 212 disposed between the touch electrode layer 213 and the base substrate. 1 between the connection layer 214 ; in some embodiments, the touch control unit 21 and the base substrate 1 are bonded through the connection layer 214 .
  • the touch control unit 21 further includes a transparent protection layer (not shown in the figure) disposed on the side of the sensing electrode layer 211 away from the base substrate 1 , and the touch object acts on the transparent protection layer.
  • the distance between the piezoelectric unit 31 and the sensing region is greater than or equal to 100 microns.
  • the electric field near the touch trace is mainly concentrated in the area touched by the object, and the electric field distribution is very weak in the relative peripheral area or the area with a large distance from the touch trace.
  • the piezoelectric unit 31 in the feedback area and the sensing area to further prevent it from being affected by the electric field of the touch trace.
  • one or more piezoelectric units 31 can be arranged in the feedback area, and the arrangement of multiple piezoelectric units 31 mentioned above is only used in the present disclosure.
  • An optional implementation mode which will not limit the technical solution of the present disclosure; and, the above-mentioned touch unit 21 includes a plurality of touch electrodes and a plurality of sensing electrodes, as well as its specific layer structure, only for this disclosure It is an optional implementation mode, which will not limit the technical solution of the present disclosure, and other touch unit configurations are also applicable to the technical solution of the present disclosure.
  • the touch unit 21 may include multiple The touch sensing electrode blocks are used to realize self-capacitive touch sensing.
  • FIG. 4 is a schematic structural diagram of a tactile feedback driving module provided by an embodiment of the present disclosure.
  • the haptic feedback driving module includes: a data analysis unit 411 , a signal determination unit 412 and a signal generation unit 413 .
  • the data analysis unit 411 is configured to respond to the touch data acquired through the touch unit, and determine the touch action type and touch position according to the touch data.
  • the signal determination unit 412 is configured to determine the driving signal according to the touch area where the touch position is located and the type of the touch action.
  • the signal generation unit 413 is used to generate and output the drive signal.
  • the signal determining unit 412 is configured to determine that the driving signal is the first high-frequency continuous wave signal in response to the fact that the touch area where the touch position is located is an object edge area and the touch action type is a sliding type.
  • the first high-frequency continuous wave signal is a high-frequency continuous wave signal modulated by a sinc function, which is input to the piezoelectric unit as a high-frequency excitation signal to produce a pressure film effect, and the touch object (such as a fingertip) ) interacts with the touch surface of the tactile feedback device, providing frictional force at the corresponding touch position to generate edge tactile sensation; specifically, the modulation frequency is 100-200 Hz, and the number of cycles is 10-70; the frequency of the high-frequency continuous wave signal is 20k ⁇ 100kHz, in some embodiments, the frequency is 26.2kHz.
  • the signal determining unit 412 is configured to determine that the driving signal is a low-frequency square wave pulse signal in response to the fact that the touch area where the touch position is located is an internal area of an object and the touch action type is a press type.
  • the internal area of the object corresponds to keys and button interaction areas, and the low-frequency square wave pulse signal is input to the piezoelectric unit to generate vibration and tactile feedback; specifically, the frequency of the low-frequency square wave pulse signal can be 150 Hz, 200 Hz, etc., which The number of cycles may be 5 or 10.
  • the signal determining unit 412 is configured to determine that the driving signal is the second high-frequency continuous wave signal in response to the fact that the touch area where the touch position is located is a stripe area and the touch action type is a sliding type.
  • the second high-frequency continuous wave signal is a high-frequency continuous wave signal modulated by a sinc function, which is input to the piezoelectric unit as a high-frequency excitation signal to generate a lamination effect, and the touch object and the tactile feedback device When interacting with the touch surface, friction is provided at the corresponding touch position to produce a textured touch; specifically, the modulation frequency is 8-20Hz, and the number of cycles is 10-70; the frequency of the high-frequency continuous wave signal is 20k-100kHz.
  • its frequency is 26.2kHz; wherein, the modulation frequency corresponding to the first high-frequency continuous wave signal is greater than the modulation frequency corresponding to the second high-frequency continuous wave signal; in some embodiments, the first high-frequency continuous wave signal
  • the second high-frequency continuous wave signal and the second high-frequency continuous wave signal are respectively generated by the signal generating unit based on the same high-frequency continuous wave signal via a corresponding modulator.
  • the output terminal of the signal generation unit 413 is further connected with an amplification circuit, and the driving signal is output to the piezoelectric unit through the amplification circuit.
  • the tactile feedback driving module further includes a timeout detection unit (not shown in the figure), through which the signal generating unit 413 is controlled to output the duration of the driving signal.
  • Fig. 5 is a schematic structural diagram of another tactile feedback device provided by an embodiment of the present disclosure
  • Fig. 6 is a schematic structural diagram of another tactile feedback device provided by an embodiment of the present disclosure
  • Schematic diagram of the structure of the tactile feedback device is divided into a sensing area 2 and a feedback area 3 surrounding the sensing area 2, and its periphery also includes a binding (Bonding) area 5
  • the tactile feedback device includes a base substrate 1 , the touch unit disposed on the base substrate 1 and located in the sensing area 2 and the piezoelectric unit 31 located in the feedback area 3
  • the touch unit includes a plurality of touch electrodes 215 and a plurality of sensing electrodes 216, and the plurality of touch
  • the orthographic projections of the control electrode 215 and the plurality of sensing electrodes 216 on the base substrate 1 intersect; specifically, a plurality of piezoelectric units 31 are provided on at least two opposite sides of the sensing region 2 .
  • a plurality of piezoelectric units 31 are arranged on two opposite sides of the sensing region 2 along the first direction, as an optional implementation, a plurality of piezoelectric units 31 are uniformly arranged, wherein, (a ) and (b) respectively show two crossing arrangements of multiple touch electrodes 215 and multiple sensing electrodes 216 under the setup of the piezoelectric unit 31; as shown in FIG. 6 , multiple piezoelectric units 31 are arranged on two opposite sides of the sensing area 2 along the second direction.
  • a plurality of piezoelectric units 31 are evenly arranged, wherein (c) and (d) respectively show that In the setting mode of the piezoelectric unit 31, there are two cross-setting modes of the plurality of touch electrodes 215 and the plurality of sensing electrodes 216; as shown in FIG.
  • a plurality of piezoelectric units 31 are arranged on two opposite sides of the sensing area 2 along the first direction and two opposite sides along the second direction, wherein (e) and (f) respectively show the In the configuration mode, there are two cross-disposition modes of multiple touch electrodes 215 and multiple sensing electrodes 216 .
  • An embodiment of the present disclosure also provides a display device, which includes:
  • the display substrate is an organic light-emitting diode (Organic Light-Emitting Diode, referred to as OLED) display substrate or an active matrix OLED display substrate (AMOLED); in some embodiments, the display substrate includes The encapsulation layer, the light-emitting layer, and the substrate are stacked in sequence in the direction of the side; in some embodiments, the light-emitting layer is located between the anode and the cathode, and the light-emitting layer may include: a hole injection layer, a hole transport layer, an electroluminescence layer , electron injection layer and electron transport layer and other functional layers.
  • OLED Organic Light-Emitting Diode
  • AMOLED active matrix OLED display substrate
  • Fig. 8 is a flowchart of a tactile feedback method provided by an embodiment of the present disclosure. Specifically, the method is applied to a tactile feedback device.
  • the tactile feedback device is divided into a sensing area and a feedback area surrounding the sensing area.
  • Step S1 in response to the touch data acquired through the touch unit, determine the touch position according to the touch data.
  • Step S2 determining a corresponding driving signal at least according to the touch area where the touch position is located, and inputting the driving signal to the piezoelectric unit, so as to drive the piezoelectric unit to generate tactile feedback.
  • step S1 the step of determining the touch position according to the touch data includes: determining the touch action type and touch position according to the touch data; in step S2, determining the corresponding drive at least according to the touch area where the touch position is The step of signaling includes: determining the driving signal according to the touch area where the touch position is located and the type of touch action.
  • step S2 in response to the fact that the touch area where the touch position is located is the edge area of the object and the touch action type is the sliding type, it is determined that the drive signal is the first high-frequency continuous wave signal;
  • the touch area where the position is located is the internal area of the object and the touch action type is a press type, and it is determined that the driving signal is a low-frequency square wave pulse signal; in response to the touch area where the touch position is located is a stripe area and the touch action type is a slide type, determine
  • the output driving signal is the second high frequency continuous wave signal.
  • FIG. 9 is a schematic diagram of an interactive interface of a display device provided by an embodiment of the present disclosure
  • FIG. 10 is a flow logic diagram of a software control plane of a display device provided by an embodiment of the present disclosure
  • FIG. 11 is a schematic diagram of an interactive interface provided by an embodiment of the present disclosure.
  • the display device includes a display substrate and a tactile feedback device disposed on the display surface side of the display substrate.
  • the tactile feedback device is divided into a sensing area and a feedback area surrounding the sensing area.
  • the tactile feedback device includes a tactile sensor located in the sensing area.
  • buttons B are displayed on the interactive interface, and the buttons B include an edge part C and an inner part D;
  • the graphic interactive area A and the multiple buttons B can change the display content of the graphic area T and the overall interactive interface.
  • the display device includes: a touch screen, a touch chip, a main control terminal (also known as a host terminal, which may include a central processing unit, etc.), a waveform generation circuit, an amplification circuit, Display chip and display screen; in the working state, the software is started, and the main control terminal controls the display screen to display the interactive interface; the user's fingertip touches the touch surface of the touch screen, and the touch screen includes a touch unit and a piezoelectric unit, which constitute a A combination of touch feedback; the touch unit acquires touch data and sends it to the main control terminal through the touch chip, and the main control terminal analyzes and processes the touch data to obtain the touch position and touch action type.
  • the touch action type determined by the main control terminal is the sliding type, and the touch area where the touch position is located is the edge part C of the button B, thus it is determined that the first waveform should be output, and the first waveform corresponds to A high-frequency continuous wave signal modulated by a sinc function;
  • the touch action type determined by the main control terminal is the press type, and the touch area where the touch position is located is the inner D of the button B, thus determining that the third waveform sequence should be output,
  • the third waveform sequence corresponds to the low-frequency square wave pulse signal;
  • the touch action type determined by the main control terminal is the sliding type, and the touch area where the touch position is located is the bar-shaped interaction area A, so it is determined that the second waveform should be output.
  • the second waveform corresponds to a high-frequency continuous wave signal modulated by a sinc function, and the modulation frequency corresponding to the second waveform is lower than the modulation frequency corresponding to the first waveform.
  • the main control terminal controls the waveform generation circuit to generate a corresponding signal, and performs timeout detection. Before the timeout, the signal is output by the amplifier circuit to the piezoelectric unit of the touch screen, and the piezoelectric unit generates a corresponding tactile feedback effect based on the signal. Detection When the timeout is reached, the signal output will be stopped.
  • the main control terminal determines that the touch position and the touch action type do not meet the above conditions, and then continues to analyze and process the real-time touch data. And, according to the touch data of the user's fingertips, the main control terminal controls the interactive interface in the display screen through the display chip to change the displayed content.
  • the piezoelectric unit for the first waveform, the piezoelectric unit generates a lamination effect based on the high-frequency excitation signal corresponding to the first waveform, and provides friction force to the user's fingertips to generate edge tactile sensation; for the second waveform In the three-wave sequence, the piezoelectric unit vibrates based on the low-frequency signal to generate vibration tactile feedback; for the second waveform, the piezoelectric unit generates a film effect based on the high-frequency excitation signal, providing friction to the user’s fingertips to generate Textured touch. Haptic feedback is thus achieved.
  • Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media.
  • Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tape, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

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

Abstract

本公开提供了一种触觉反馈装置，划分有感测区和环绕感测区的反馈区；触觉反馈装置包括：衬底基板，设置在衬底基板上、且位于感测区的触控单元和位于反馈区的压电单元，以及触觉反馈驱动模块；其中，触觉反馈驱动模块，用于响应于通过触控单元获取到的触摸数据，根据触摸数据确定触摸位置；至少根据触摸位置所处的触摸区域确定出对应的驱动信号，并向压电单元输入驱动信号，以驱动压电单元产生触觉反馈。本公开还提供了一种显示设备和一种触觉反馈方法。

Description

触觉反馈装置、显示设备和触觉反馈方法 技术领域
本公开涉及触控显示技术领域，特别涉及一种触觉反馈装置、显示设备和触觉反馈方法。
背景技术
随着触控显示技术的不断发展，触控操作已渗透到人们生活的方方面面，众多电子产品，包括移动终端、个人电脑、电器设备等，均已支持触控功能。而人类感测***的主要方式包括视觉，听觉和触觉等，目前对于视觉、听觉进行感测和呈现的手段都较为成熟，相对地，当前对触觉反馈的需求日益增大，如何在触控交互时实现真实的触觉反馈是一项亟待解决的问题。
发明内容
本公开旨在至少解决现有技术中存在的技术问题之一，提出了一种触觉反馈装置、显示设备和触觉反馈方法。
为实现上述目的，第一方面，本公开实施例提供了一种触觉反馈装置，其划分有感测区和环绕感测区的反馈区；所述触觉反馈装置包括：衬底基板，设置在所述衬底基板上、且位于所述感测区的触控单元和位于所述反馈区的压电单元，以及触觉反馈驱动模块；
所述触觉反馈驱动模块，用于响应于通过所述触控单元获取到的触摸数据，根据所述触摸数据确定触摸位置；至少根据所述触摸位置所处的触摸区域确定出对应的驱动信号，并向所述压电单元输入所述驱动信号，以驱动所述压电单元产生触觉反馈。
在一些实施例中，所述触觉反馈驱动模块包括：数据分析单元、信号确定单元和信号生成单元；
所述数据分析单元，用于响应于通过所述触控单元获取到的所述触摸数据，根据所述触摸数据确定触摸动作类型和所述触摸位置；
所述信号确定单元，用于根据所述触摸位置所处的触摸区域以及所述触 摸动作类型确定出所述驱动信号；
所述信号生成单元，用于生成所述驱动信号并输出。
在一些实施例中，所述信号确定单元，被配置为响应于所述触摸位置所处的触摸区域为物体边缘区域且所述触摸动作类型为滑动类型，确定出所述驱动信号为第一高频连续波信号。
在一些实施例中，所述信号确定单元，被配置为响应于所述触摸位置所处的触摸区域为物体内部区域且所述触摸动作类型为按压类型，确定出所述驱动信号为低频方波脉冲信号。
在一些实施例中，所述信号确定单元，被配置为响应于所述触摸位置所处的触摸区域为条纹区域且所述触摸动作类型为滑动类型，确定出所述驱动信号为第二高频连续波信号。
在一些实施例中，所述压电单元包括：沿背离所述衬底基板的方向依次叠层设置的第一电极、压电薄膜和第二电极。
在一些实施例中，所述触觉反馈驱动模块，具体用于在所述压电单元的所述第一电极和所述第二电极之间加载所述驱动信号，以驱动所述压电单元产生触觉反馈。
在一些实施例中，所述触控单元包括多个触控电极和多个感应电极，以及设置在所述多个触控电极所在层和所述多个感应电极所在层之间的层间绝缘层；所述多个触控电极和所述多个感应电极在所述衬底基板上的正投影相交叉；
所述多个触控电极与所述第一电极同层设置，所述多个感应电极与所述第二电极同层设置。
在一些实施例中，所述压电单元与所述感测区之间的间距大于或等于100微米。
在一些实施例中，所述感测区的至少两相对侧设置有多个所述压电单元。
在一些实施例中，多个所述压电单元环绕所述感测区均匀排布。
第二方面，本公开实施例还提供了一种显示设备，其包括：
显示基板和设置于所述显示基板的显示面侧的触觉反馈装置；其中，所述触觉反馈装置采用如上述实施例中任一所述的触觉反馈装置。
第三方面，本公开实施例还提供了一种触觉反馈方法，应用于触觉反馈装置，所述触觉反馈装置划分有感测区和环绕所述感测区的反馈区；所述触觉反馈装置包括：衬底基板，设置在所述衬底基板上、且位于所述感测区的触控单元和位于所述反馈区的压电单元；
所述方法包括：
响应于通过所述触控单元获取到的触摸数据，根据所述触摸数据确定触摸位置；
至少根据所述触摸位置所处的触摸区域确定出对应的驱动信号，并向所述压电单元输入所述驱动信号，以驱动所述压电单元产生触觉反馈。
在一些实施例中，所述响应于通过所述触控单元获取到的触摸数据，根据所述触摸数据确定触摸位置，包括：
根据所述触摸数据确定触摸动作类型和所述触摸位置；
所述至少根据所述触摸位置所处的触摸区域确定出对应的驱动信号，并向所述压电单元输入所述驱动信号，包括：
根据所述触摸位置所处的触摸区域以及所述触摸动作类型确定出所述驱动信号。
在一些实施例中，所述根据所述触摸位置所处的触摸区域以及所述触摸动作类型确定出所述驱动信号，包括：
响应于所述触摸位置所处的触摸区域为物体边缘区域且所述触摸动作类型为滑动类型，确定出所述驱动信号为第一高频连续波信号；
响应于所述触摸位置所处的触摸区域为物体内部区域且所述触摸动作类型为按压类型，确定出所述驱动信号为低频方波脉冲信号；
响应于所述触摸位置所处的触摸区域为条纹区域且所述触摸动作类型为滑动类型，确定出所述驱动信号为第二高频连续波信号。
附图说明
附图用来提供对本公开的进一步理解，并且构成说明书的一部分，与本公开的实施例一起用于解释本公开，并不构成对本公开的限制。通过参考附图对详细示例实施例进行描述，以上和其他特征和优点对本领域技术人员将变得更加显而易见，在附图中：
图1为本公开实施例提供的一种触觉反馈装置的结构示意图；
图2为本公开实施例提供的一种压电单元的结构示意图；
图3为本公开实施例提供的另一种触觉反馈装置的剖面示意图；
图4为本公开实施例提供的一种触觉反馈驱动模块的结构示意图；
图5为本公开实施例提供的又一种触觉反馈装置的结构示意图；
图6为本公开实施例提供的再一种触觉反馈装置的结构示意图；
图7为本公开实施例提供的再一种触觉反馈装置的结构示意图；
图8为本公开实施例提供的一种触觉反馈方法的流程图；
图9为本公开实施例提供的一种显示设备的交互界面的示意图；
图10为本公开实施例提供的一种显示设备软件控制面的流程逻辑图；
图11为本公开实施例提供的一种显示设备工作状态的流程图。
具体实施方式
为使本领域的技术人员更好地理解本公开的技术方案，下面结合附图对本公开提供的触觉反馈装置、显示设备和触觉反馈方法进行详细描述。
在下文中将参考附图更充分地描述示例实施例，但是所述示例实施例可以以不同形式来体现且不应当被解释为限于本文阐述的实施例。反之，提供这些实施例的目的在于使本公开透彻和完整，并将使本领域技术人员充分理解本公开的范围。
本文所使用的术语仅用于描述特定实施例，且不意欲限制本公开。如本文所使用的，单数形式“一个”和“该”也意欲包括复数形式，除非上下文另外清楚指出。还将理解的是，当本说明书中使用术语“包括”和/或“由……制成”时，指定存在所述特征、整体、步骤、操作、元件和/或组件，但不排除存在或添加一个或多个其他特征、整体、步骤、操作、元件、组件和/或其群组。
将理解的是，虽然本文可以使用术语第一、第二等来描述各种元件，但这些元件不应当受限于这些术语。这些术语仅用于区分一个元件和另一元件。因此，在不背离本公开的指教的情况下，下文讨论的第一元件、第一组件或第一模块可称为第二元件、第二组件或第二模块。
除非另外限定，否则本文所用的所有术语(包括技术和科学术语)的含义与本领域普通技术人员通常理解的含义相同。还将理解，诸如那些在常用字典中限定的那些术语应当被解释为具有与其在相关技术以及本公开的背景下的含义一致的含义，且将不解释为具有理想化或过度形式上的含义，除非本文明确如此限定。
图1为本公开实施例提供的一种触觉反馈装置的结构示意图。如图1所示，触觉反馈装置划分有感测区2和环绕感测区2的反馈区3；该触觉反馈装置包括：衬底基板1，设置在衬底基板1上、且位于感测区2的触控单元21和位于反馈区3的压电单元31，以及触觉反馈驱动模块41。
其中，触觉反馈驱动模块41用于响应于通过触控单元21获取到的触摸数据，根据触摸数据确定触摸位置；至少根据触摸位置所处的触摸区域确定出对应的驱动信号，并向压电单元31输入该驱动信号，以驱动压电单元31产生触觉反馈。
在一些实施例中，衬底基板1为玻璃基板。
需要说明的是，图1中仅示出了各组件相对的位置及区域关系，其并不用于体现各组件大小关系、组件个数、线路关系等，其不会对本公开的技术 方案产生限制。
图2为本公开实施例提供的一种压电单元的结构示意图。如图2所示，压电单元包括：第一电极311、压电薄膜312和第二电极313。
其中，第一电极311、压电薄膜312和第二电极313沿背离衬底基板的方向依次叠层设置；在一些实施例中，该压电薄膜312可为PZT压电薄膜、压电片等。
相应地，在一些实施例中，触觉反馈驱动模块具体用于在压电单元的第一电极311和第二电极313之间加载驱动信号，以驱动压电单元产生触觉反馈。
图3为本公开实施例提供的另一种触觉反馈装置的剖面示意图。如图3所示，其示出了触觉反馈装置中的衬底基板1，设置在衬底基板1上的触控单元21，以及压电单元31。其中，触控单元21包括多个触控电极和多个感应电极，其分别位于触控电极层213和感应电极层211，多个触控电极和多个感应电极在衬底基板1上的正投影相交叉；作为一种可选的实施方式，触觉反馈装置的反馈区设置有多个压电单元31，如图3所示，其设置于的感测区的两相对侧；每个压电单元31的结构如图2所示，包括第一电极311、压电薄膜312和第二电极313。
在一些实施例中，第一电极311与触控电极层213同层设置，第二电极313与感应电极层211同层设置；在一些实施例中，第一电极311可与触控电极层213基于复用结构设置；在一些实施例中，第二电极313可与感应电极层211基于复用结构设置。
在一些实施例中，触控电极又称为触控驱动电极；具体地，在工作状态下，根据预设的扫描周期，逐行向多个触控电极输入扫描信号，并根据各感应电极的输出信号获取得到触摸数据，实现互电容式触控感应。
在一些实施例中，如图3所示，触控单元21还包括设置在触控电极层213和感应电极层211之间的层间绝缘层212，以及位于触控电极层213和衬 底基板1之间的连接层214；在一些实施例中，通过连接层214粘接触控单元21与衬底基板1。
在一些实施例中，触控单元21还包括设置于感应电极层211背离衬底基板1一侧的透明保护层(图中未示出)，触摸物件作用于透明保护层上。
在一些实施例中，压电单元31与感测区之间的间距大于或等于100微米。具体地，触控走线附近的电场主要集中在供物体触摸的区域，在相对的***区域或与触控走线间距较大的区域其电场分布很弱，在此基础上，通过保证设置于反馈区的压电单元31与感测区之间存在一定距离可进一步避免其受到触控走线的电场的影响。
需要说明的是，针对本公开各实施例中的触觉反馈装置，其反馈区均中可设置一个或多个压电单元31，上述采用多个压电单元31的设置方式，仅为本公开中的一种可选实现方式，其不会对本公开的技术方案产生限制；以及，上述的触控单元21包括多个触控电极和多个感应电极，以及其具体各层结构，仅为本公开中的一种可选实现方式，其不会对本公开的技术方案产生限制，其他触控单元构造方式同样适用于本公开的技术方案，例如在一些实施例中，触控单元21可包括多个触控感应电极块，以实现自电容式触控感应。
图4为本公开实施例提供的一种触觉反馈驱动模块的结构示意图。如图4所示，触觉反馈驱动模块包括：数据分析单元411、信号确定单元412和信号生成单元413。
其中，数据分析单元411用于响应于通过触控单元获取到的触摸数据，根据触摸数据确定触摸动作类型和触摸位置。
信号确定单元412用于根据触摸位置所处的触摸区域以及触摸动作类型确定出驱动信号。
信号生成单元413用于生成该驱动信号并输出。
在一些实施例中，信号确定单元412被配置为响应于触摸位置所处的触摸区域为物体边缘区域且触摸动作类型为滑动类型，确定出驱动信号为第一 高频连续波信号。在一些实施例中，第一高频连续波信号为通过sinc函数调制的高频连续波信号，其作为高频的激励信号输入至压电单元以产生压膜效应，在触摸物件(如指尖)与触觉反馈装置的触摸面交互时，在对应的触摸位置提供摩擦力，以产生边缘触感；具体地，调制频率为100～200Hz，周期数为10～70个；高频连续波信号频率为20k～100kHz，在一些实施例中，其频率为26.2kHz。
在一些实施例中，信号确定单元412被配置为响应于触摸位置所处的触摸区域为物体内部区域且触摸动作类型为按压类型，确定出驱动信号为低频方波脉冲信号。在一些实施例中，该物体内部区域对应按键、按钮交互区域，低频方波脉冲信号输入至压电单元以产生振动触觉反馈；具体地，低频方波脉冲信号的频率可取150Hz、200Hz等，其周期数可为5个、10个。
在一些实施例中，信号确定单元412被配置为响应于触摸位置所处的触摸区域为条纹区域且触摸动作类型为滑动类型，确定出驱动信号为第二高频连续波信号。在一些实施例中，第二高频连续波信号为通过sinc函数调制的高频连续波信号，其作为高频的激励信号输入至压电单元以产生压膜效应，在触摸物件与触觉反馈装置的触摸面交互时，在对应的触摸位置提供摩擦力，以产生纹路触感；具体地，调制频率为8～20Hz，周期数为10～70个；高频连续波信号频率为20k～100kHz，在一些实施例中，其频率为26.2kHz；其中，第一高频连续波信号对应的调制频率大于第二高频连续波信号对应的调制频率；在一些实施例中，第一高频连续波信号和第二高频连续波信号由信号生成单元分别基于同一高频连续波信号经对应的调制器生成。
在一些实施例中，信号生成单元413的输出端还连接有放大电路，经放大电路将驱动信号输出至压电单元。
在一些实施例中，触觉反馈驱动模块还包括超时检测单元(图中未示出)，通过超时检测单元控制信号生成单元413输出驱动信号的时长。
图5为本公开实施例提供的又一种触觉反馈装置的结构示意图，图6为本公开实施例提供的再一种触觉反馈装置的结构示意图，图7为本公开实施 例提供的再一种触觉反馈装置的结构示意图。作为一种可选的实施方式，触觉反馈装置划分有感测区2和环绕感测区2的反馈区3，其***还包括绑定(Bonding)区5；该触觉反馈装置包括衬底基板1，设置在衬底基板1上、且位于感测区2的触控单元和位于反馈区3的压电单元31；触控单元包括多个触控电极215和多个感应电极216，多个触控电极215和多个感应电极216在衬底基板1上的正投影相交叉；具体地，感测区2的至少两相对侧设置有多个压电单元31。如图5所示，多个压电单元31设置在感测区2沿第一方向的两相对侧，作为一种可选的实施方式，多个压电单元31均匀排布，其中，(a)和(b)分别示出了在该压电单元31的设置方式下，多个触控电极215和多个感应电极216的两种交叉设置方式；如图6所示，多个压电单元31设置在感测区2沿第二方向的两相对侧，作为一种可选的实施方式，多个压电单元31均匀排布，其中，(c)和(d)分别示出了在该压电单元31的设置方式下，多个触控电极215和多个感应电极216的两种交叉设置方式；如图7所示，多个压电单元31环绕感测区2均匀排布，即多个压电单元31设置在感测区2沿第一方向的两相对侧以及沿第二方向的两相对侧，其中，(e)和(f)分别示出了在该压电单元31的设置方式下，多个触控电极215和多个感应电极216的两种交叉设置方式。
本公开实施例还提供了一种显示设备，其包括：
显示基板和设置于显示基板的显示面侧的触觉反馈装置；其中，该触觉反馈装置采用如上述实施例中任一的触觉反馈装置。
在一些实施例中，该显示基板为有机发光二极管(Organic Light-Emitting Diode，简称OLED)显示基板或有源矩阵型OLED显示基板(AMOLED)；在一些实施例中，显示基板包括沿背离显示面侧的方向依次叠层设置的封装层、发光层和基板；在一些实施例中，发光层位于阳极和阴极之间，发光层可包括：空穴注入层、空穴传输层、电致发光层、电子注入层和电子传输层等功能层。
图8为本公开实施例提供的一种触觉反馈方法的流程图。具体地，该方 法应用于触觉反馈装置，该触觉反馈装置划分有感测区和环绕感测区的反馈区，该触觉反馈装置包括：衬底基板，设置在衬底基板上、且位于感测区的触控单元和位于反馈区的压电单元；如图8所示，该方法包括：
步骤S1、响应于通过触控单元获取到的触摸数据，根据触摸数据确定触摸位置。
步骤S2、至少根据触摸位置所处的触摸区域确定出对应的驱动信号，并向压电单元输入驱动信号，以驱动压电单元产生触觉反馈。
在一些实施例中，步骤S1中，根据触摸数据确定触摸位置的步骤，包括：根据触摸数据确定触摸动作类型和触摸位置；步骤S2中，至少根据触摸位置所处的触摸区域确定出对应的驱动信号的步骤，包括：根据触摸位置所处的触摸区域以及触摸动作类型确定出驱动信号。
具体地，在一些实施例中，步骤S2中，响应于触摸位置所处的触摸区域为物体边缘区域且触摸动作类型为滑动类型，确定出驱动信号为第一高频连续波信号；响应于触摸位置所处的触摸区域为物体内部区域且触摸动作类型为按压类型，确定出驱动信号为低频方波脉冲信号；响应于触摸位置所处的触摸区域为条纹区域且触摸动作类型为滑动类型，确定出驱动信号为第二高频连续波信号。
下面结合实际应用对本公开实施例所提供的显示设备及触觉反馈方法进行详细描述。
图9为本公开实施例提供的一种显示设备的交互界面的示意图，图10为本公开实施例提供的一种显示设备软件控制面的流程逻辑图，图11为本公开实施例提供的一种显示设备工作状态的流程图。具体地，该显示设备包括显示基板和设置于显示基板的显示面侧的触觉反馈装置，触觉反馈装置划分有感测区和环绕感测区的反馈区，触觉反馈装置包括位于感测区的触控单元、位于反馈区的压电单元以及触觉反馈驱动模块。如图9所示，交互界面上显示有图案区T、条形互动区A以及多个按键B，按键B包括边缘部C和内部 D；触摸物件，特别地，用户指尖，可通过触摸条形互动区A以及多个按键B等位置实现更改图案区T以及整体交互界面的显示内容。
如图10和图11所示，依据控制面划分方式，显示设备包括：触屏、触控芯片、主控制端(又称主机端，可包括中央处理器等)、波形产生电路、放大电路、显示芯片和显示屏；在工作状态下，软件启动，主控制端控制显示屏显示交互界面；用户指尖触碰触屏的触摸面，触屏包括触控单元和压电单元，二者构成用于触控反馈的联合体；触控单元获取触摸数据，并通过触控芯片发送至主控制端，主控制端分析处理该触摸数据由此获取触摸位置和触摸动作类型。此时存在多种情况：主控制端确定出的触摸动作类型为滑动类型，且触摸位置所处的触摸区域为按键B的边缘部C，由此确定出应输出第一波形，第一波形对应通过sinc函数调制的高频连续波信号；主控制端确定出的触摸动作类型为按压类型，且触摸位置所处的触摸区域为按键B的内部D，由此确定出应输出第三波形序列，第三波形序列对应低频方波脉冲信号；主控制端确定出的触摸动作类型为滑动类型，且触摸位置所处的触摸区域为条形互动区A，由此确定出应输出第二波形，第二波形对应通过sinc函数调制的高频连续波信号，第二波形对应的调制频率小于第一波形对应的调制频率。此后，主控制端控制波形产生电路产生相应的信号，并进行超时检测，在超时前，信号由放大电路输出至触屏的压电单元，压电单元基于该信号产生对应的触觉反馈效果，检测到超时则停止信号输出。或者，主控制端确定出触摸位置及触摸动作类型不符合上述各情况，则继续对实时的触摸数据进行分析处理。以及，主控制端根据用户指尖的触摸数据，通过显示芯片控制显示屏中的交互界面进行显示内容的改变。
其中，对应于上述的多种情况，针对第一波形，压电单元基于该第一波形对应的高频的激励信号产生压膜效应，向用户指尖提供摩擦力，以产生边缘触感；针对第三波形序列，压电单元基于该低频信号进行振动，以产生振动触觉反馈；针对第二波形，压电单元基于该高频的激励信号产生压膜效应，向用户指尖提供摩擦力，以产生纹路触感。由此实现触觉反馈。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。
本文已经公开了示例实施例，并且虽然采用了具体术语，但它们仅用于并仅应当被解释为一般说明性含义，并且不用于限制的目的。在一些实例中，对本领域技术人员显而易见的是，除非另外明确指出，否则可单独使用与特定实施例相结合描述的特征、特性和/或元素，或可与其他实施例相结合描述的特征、特性和/或元件组合使用。因此，本领域技术人员将理解，在不脱离由所附的权利要求阐明的本公开的范围的情况下，可进行各种形式和细节上的改变。

Claims (15)

  1. 一种触觉反馈装置，其划分有感测区和环绕感测区的反馈区；
    所述触觉反馈装置包括：衬底基板，设置在所述衬底基板上、且位于所述感测区的触控单元和位于所述反馈区的压电单元，以及触觉反馈驱动模块；其中，
    所述触觉反馈驱动模块，用于响应于通过所述触控单元获取到的触摸数据，根据所述触摸数据确定触摸位置，至少根据所述触摸位置所处的触摸区域确定出对应的驱动信号，并向所述压电单元输入所述驱动信号，以驱动所述压电单元产生触觉反馈。
  2. 根据权利要求1所述的触觉反馈装置，其中，
    所述触觉反馈驱动模块包括：数据分析单元、信号确定单元和信号生成单元；
    所述数据分析单元，用于响应于通过所述触控单元获取到的所述触摸数据，根据所述触摸数据确定触摸动作类型和所述触摸位置；
    所述信号确定单元，用于根据所述触摸位置所处的触摸区域以及所述触摸动作类型确定出所述驱动信号；
    所述信号生成单元，用于生成所述驱动信号并输出。
  3. 根据权利要求2所述的触觉反馈装置，其中，
    所述信号确定单元，被配置为响应于所述触摸位置所处的触摸区域为物体边缘区域且所述触摸动作类型为滑动类型，确定出所述驱动信号为第一高频连续波信号。
  4. 根据权利要求2所述的触觉反馈装置，其中，
    所述信号确定单元，被配置为响应于所述触摸位置所处的触摸区域 为物体内部区域且所述触摸动作类型为按压类型，确定出所述驱动信号为低频方波脉冲信号。
  5. 根据权利要求2所述的触觉反馈装置，其中，
    所述信号确定单元，被配置为响应于所述触摸位置所处的触摸区域为条纹区域且所述触摸动作类型为滑动类型，确定出所述驱动信号为第二高频连续波信号。
  6. 根据权利要求1所述的触觉反馈装置，其中，
    所述压电单元包括：沿背离所述衬底基板的方向依次叠层设置的第一电极、压电薄膜和第二电极。
  7. 根据权利要求6所述的触觉反馈装置，其中，
    所述触觉反馈驱动模块，具体用于在所述压电单元的所述第一电极和所述第二电极之间加载所述驱动信号，以驱动所述压电单元产生触觉反馈。
  8. 根据权利要求6所述的触觉反馈装置，其中，
    所述触控单元包括多个触控电极和多个感应电极，以及设置在所述多个触控电极所在层和所述多个感应电极所在层之间的层间绝缘层；所述多个触控电极和所述多个感应电极在所述衬底基板上的正投影相交叉；
    所述多个触控电极与所述第一电极同层设置，所述多个感应电极与所述第二电极同层设置。
  9. 根据权利要求1所述的触觉反馈装置，其中，
    所述压电单元与所述感测区之间的间距大于或等于100微米。
  10. 根据权利要求1至9中任意一项所述的触觉反馈装置，其中，
    所述感测区的至少两相对侧设置有多个所述压电单元。
  11. 根据权利要求10所述的触觉反馈装置，其中，
    多个所述压电单元环绕所述感测区均匀排布。
  12. 一种显示设备，其包括：
    显示基板和设置于所述显示基板的显示面侧的触觉反馈装置；其中，所述触觉反馈装置采用如权利要求1至11中任意一项所述的触觉反馈装置。
  13. 一种触觉反馈方法，应用于触觉反馈装置，所述触觉反馈装置划分有感测区和环绕所述感测区的反馈区；所述触觉反馈装置包括：衬底基板，设置在所述衬底基板上、且位于所述感测区的触控单元和位于所述反馈区的压电单元；
    其中，所述方法包括：
    响应于通过所述触控单元获取到的触摸数据，根据所述触摸数据确定触摸位置；
    至少根据所述触摸位置所处的触摸区域确定出对应的驱动信号，并向所述压电单元输入所述驱动信号，以驱动所述压电单元产生触觉反馈。
  14. 根据权利要求13所述的触觉反馈方法，其中，所述响应于通过所述触控单元获取到的触摸数据，根据所述触摸数据确定触摸位置，包括：
    根据所述触摸数据确定触摸动作类型和所述触摸位置；
    所述至少根据所述触摸位置所处的触摸区域确定出对应的驱动信号，并向所述压电单元输入所述驱动信号，包括：
    根据所述触摸位置所处的触摸区域以及所述触摸动作类型确定出所述驱动信号。
  15. 根据权利要求14所述的触觉反馈方法，其中，所述根据所述触摸位置所处的触摸区域以及所述触摸动作类型确定出所述驱动信号，包括：
    响应于所述触摸位置所处的触摸区域为物体边缘区域且所述触摸动作类型为滑动类型，确定出所述驱动信号为第一高频连续波信号；
    响应于所述触摸位置所处的触摸区域为物体内部区域且所述触摸动作类型为按压类型，确定出所述驱动信号为低频方波脉冲信号；
    响应于所述触摸位置所处的触摸区域为条纹区域且所述触摸动作类型为滑动类型，确定出所述驱动信号为第二高频连续波信号。
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