HAPTIC FEEDBACK MODULE AND HAPTIC FEEDBACK DEVICE

Abstract

A haptic feedback module and a haptic feedback device pertain to the field of electronic technology. The haptic feedback module comprises: a touch module with a touch surface; a base plate arranged on a side of the touch module facing away from the touch surface; an actuator arranged between the touch module and the base plate, and connected to the touch module via a first support section and to the base plate via a second support section, wherein the actuator is used to vibrate the touch module in response to a control signal in order to generate haptic feedback on the touch surface.

Description

Tactile feedback module and tactile feedback device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number 202310786427.8, filed with the China Patent Office on June 29, 2023, and entitled “Tactile Feedback Module and Tactile Feedback Device,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the field of electronic technology, and in particular to a tactile feedback module and a tactile feedback device. Background Art

[0004] Haptic feedback is a cutting-edge technology in virtual reality and human-computer interaction. Multimedia devices like smartphones and tablets that utilize haptic feedback have broad application prospects in education, entertainment, and healthcare. With the rapid development of new energy vehicles, large in-vehicle displays have become a trend, and more and more interactive components such as physical buttons and knobs are being implemented on touchscreen displays.

[0005] Overview

[0006] The present disclosure provides a tactile feedback module, comprising:

[0007] A touch module having a touch surface;

[0008] A bottom plate is provided on a side of the touch module facing away from the touch surface;

[0009] An actuator is arranged between the touch module and the base plate, the actuator is connected to the touch module through a first support part, and the actuator is connected to the base plate through a second support part. The actuator is used to drive the touch module to vibrate in response to a driving signal to form tactile feedback on the touch surface.

[0010] In some embodiments, the actuator includes a first surface and a second surface, the first support portion is connected to the first surface, and the second support portion is connected to the second surface; and

[0011] The first surface and the second surface are arranged opposite to each other in a first direction, and the first direction is parallel to the touch surface.

[0012] In some embodiments, the first supporting portion includes a first supporting surface and a second supporting surface that are cross-connected to each other, the first supporting surface is parallel to the touch surface, the second supporting surface is located on the side of the first supporting surface away from the touch module, the first supporting surface is connected to the touch module, and the second supporting surface is connected to the first surface.

[0013] In some embodiments, the second supporting portion includes a third supporting surface and a fourth supporting surface that are cross-connected to each other, the third supporting surface is parallel to the base plate, the fourth supporting surface is located on the side of the third supporting surface away from the base plate, the third supporting surface is connected to the base plate, and the fourth supporting surface is connected to the second surface.

[0014] In some embodiments, the entire first surface is in contact with the second supporting surface, and the entire second surface is in contact with the fourth supporting surface.

[0015] In some embodiments, in the normal direction of the touch surface, the size of the second supporting surface is larger than the size of the actuator, and the size of the fourth supporting surface is larger than the size of the actuator.

[0016] In some embodiments, in the normal direction of the touch surface, the first surface is connected to a portion of the second supporting surface away from the touch module, and the second surface is connected to a portion of the fourth supporting surface close to the touch module.

[0017] In some embodiments, the shape of the first support surface includes at least one of the following: polygon, circle, ellipse, sector, ring, and irregular shape;

[0018] The shape of the third supporting surface includes at least one of the following: polygon, circle, ellipse, sector, ring and irregular shape.

[0019] In some embodiments, the first supporting portion includes a first supporting plate, the first supporting surface is a surface of the first supporting plate close to the touch module, the width of the first supporting plate is greater than or equal to the thickness of the first supporting plate, the width of the first supporting plate is the dimension of the first supporting plate in a direction parallel to the touch surface, and the thickness of the first supporting plate is the dimension of the first supporting plate in a direction perpendicular to the touch surface;

[0020] The second supporting portion includes a second supporting plate, the third supporting surface is the surface of the second supporting plate close to the base plate, the width of the second supporting plate is greater than or equal to the thickness of the second supporting plate, the width of the second supporting plate is the size of the second supporting plate in a direction parallel to the touch surface, and the thickness of the second supporting plate is the size of the second supporting plate in a direction perpendicular to the touch surface.

[0021] In some embodiments, in the second direction, the first surface is connected to the middle area of ​​the second supporting surface, the second surface is connected to the middle area of ​​the fourth supporting surface, and the edge area of ​​the second supporting surface is connected to the edge area of ​​the fourth supporting surface via a rigid connector. The second direction is parallel to the touch surface and perpendicular to the first direction.

[0022] In some embodiments, the tactile feedback module includes a first actuation group and a second actuation group, the first actuation group and the second actuation group include the same number of actuators, and the first actuation group and the second actuation group are symmetrically arranged.

[0023] In some embodiments, the orthographic projection of the first actuation group on the touch surface is set close to a first edge of the touch surface, the orthographic projection of the second actuation group on the touch surface is set close to a second edge of the touch surface, and the first edge is set opposite to the second edge.

[0024] In some embodiments, the orthographic projection of the first actuation group on the touch surface is disposed near the center of the first edge, and the orthographic projection of the second actuation group on the touch surface is disposed near the center of the second edge.

[0025] In some embodiments, the actuator includes a piezoelectric sheet, the piezoelectric sheet of the actuator in the first actuation group is parallel to the first edge, and the piezoelectric sheet of the actuator in the second actuation group is parallel to the second edge.

[0026] In some embodiments, the actuator includes a first actuator, and an orthographic projection of the first actuator on the touch surface is disposed close to an edge of the touch surface.

[0027] In some embodiments, the first support portion connected to the first actuator is located on a side of the second support portion close to the edge.

[0028] In some embodiments, the touch surface is shaped like a quadrilateral, the actuator includes a second actuator, the second actuator includes a piezoelectric sheet, and the angle between the orthographic projection of the piezoelectric sheet in the second actuator on the touch surface and one side of the quadrilateral is greater than or equal to 10° and less than or equal to 80°.

[0029] In some embodiments, the orthographic projection of the second actuator on the touch surface is disposed close to the geometric center of the touch surface.

[0030] In some embodiments, the tactile feedback module further includes:

[0031] A support column is located between the touch control module and the bottom plate. One end of the support column is connected to the touch control module, and the other end is connected to the bottom plate.

[0032] In some embodiments, the main material of the support column is a rigid material. The support column is flexibly connected to the touch control module and rigidly connected to the bottom plate bracket; or

[0033] The main material of the support column is a flexible material. The support column is adhesively connected to the touch control module and adhesively connected to the bottom plate bracket.

[0034] In some embodiments, the touch surface is a polygon, and the orthographic projections of the plurality of support columns on the touch surface are respectively disposed near different interior angles of the polygon.

[0035] In some embodiments, the shape of the orthographic projection of the support column on the touch surface includes at least one of the following: a circle, an ellipse, a polygon, a sector, an annulus, and an irregular shape.

[0036] In some embodiments, the first support portion is rigidly connected to the actuator, the first support portion is rigidly connected to the touch control module, and the second support portion is flexibly or rigidly connected to the bottom plate.

[0037] In some embodiments, the longitudinal cross-sectional shape of the first support portion includes at least one of the following: an I-shape, a Z-shape, a C-shape, an I-shape, an L-shape, a T-shape, a cylindrical shape, and a rectangular shape. The longitudinal cross-section of the first support portion is perpendicular to the touch surface; and / or,

[0038] The longitudinal cross-sectional shape of the second support portion includes at least one of the following: an I-shape, a Z-shape, a C-shape, an I-shape, an L-shape, a T-shape, a cylindrical shape, and a rectangular shape. The longitudinal cross-section of the second support portion is perpendicular to the touch surface.

[0039] In some embodiments, the actuator includes at least one of the following: a PZT piezoelectric film, a monolithic piezoelectric ceramic, a stacked piezoelectric ceramic, a cymbal-type piezoelectric ceramic, a monolithic polyvinylidene fluoride film, a stacked polyvinylidene fluoride film, and a cymbal-type polyvinylidene fluoride film.

[0040] The present disclosure provides a haptic feedback module, including:

[0041] A touch control module having a touch surface;

[0042] A bottom plate disposed on a side of the touch control module away from the touch surface;

[0043] a support portion and an actuator, wherein the support portion is used to fix the actuator between the touch module and the base plate, and the actuator is used to drive the touch module to vibrate in response to a driving signal to form tactile feedback on the touch surface;

[0044] The support portion and the actuator are rigidly connected, the actuator and the touch module are rigidly connected, and the support portion and the base plate are rigidly or flexibly connected.

[0045] In some embodiments, the actuator includes a first surface and a second surface disposed opposite to each other in a first direction, the first direction being parallel to the touch surface, and the support portion includes:

[0046] A first supporting portion connected between the first surface and the touch module; and

[0047] The second supporting portion is connected between the second surface and the bottom plate.

[0048] The present disclosure provides a tactile feedback module, comprising:

[0049] A touch module having a touch surface;

[0050] A bottom plate is provided on a side of the touch module facing away from the touch surface;

[0051] an actuator, located between the touch module and the base plate, the actuator being configured to drive the touch module to vibrate in response to a driving signal, thereby forming tactile feedback on the touch surface; and

[0052] A support column, located between the touch module and the bottom plate;

[0053] The main body material of the support column is a rigid material, one end of the support column is flexibly connected to the touch module, and the other end of the support column is rigidly connected to the base plate bracket.

[0054] The present disclosure provides a tactile feedback device, comprising:

[0055] The tactile feedback module as described in any embodiment, wherein the touch module includes at least one of the following: a touch circuit, a display panel, and a backlight module; and

[0056] A driving component is connected to the touch module and the actuator respectively, and is used to drive the display panel to display an image, and output a driving signal to the actuator based on the touch information of the touch body on the touch module, so that the actuator responds to the driving signal and drives the touch module to vibrate, thereby forming tactile feedback on the touch surface, wherein the touch information includes at least one of the following: touch position, touch time and touch action.

[0057] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present disclosure more obvious and easy to understand, the specific implementation methods of the present disclosure are listed below.

[0058] BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following is a brief introduction to the drawings required for the description of the embodiments or related technologies. Obviously, the drawings described below are some embodiments of the present disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts. It should be noted that the scales in the drawings are for illustration only and do not represent the actual scale.

[0060] FIG1 exemplarily shows a planar structural diagram of a first tactile feedback module;

[0061] FIG2 exemplarily shows a cross-sectional structural diagram of a tactile feedback module along line AA′;

[0062] FIG3 exemplarily shows a schematic planar structural diagram of a second tactile feedback module;

[0063] FIG4 exemplarily shows a schematic planar structural diagram of a third tactile feedback module;

[0064] FIG5 exemplarily shows a schematic planar structural diagram of a fourth tactile feedback module;

[0065] FIG6 exemplarily shows a schematic cross-sectional structure diagram of a tactile feedback module along line BB′;

[0066] FIG7 exemplarily shows a schematic cross-sectional structure diagram of an actuator;

[0067] FIG8 exemplarily shows a schematic planar structural diagram of a fifth tactile feedback module;

[0068] FIG9 exemplarily shows a cross-sectional structural diagram of a fifth tactile feedback module;

[0069] FIG10 shows a schematic diagram of several test positions on the touch surface;

[0070] FIG11 shows the test results of several test locations on the touch surface;

[0071] FIG12 shows a test waveform at a test position P1 on the touch surface;

[0072] FIG13 exemplarily shows a cross-sectional structural diagram of another tactile feedback module;

[0073] FIG14 exemplarily shows a schematic diagram of a connection structure of a tactile feedback device;

[0074] FIG. 15 exemplarily shows a demonstration interface displayed on a touch surface.

[0075] Detailed description

[0076] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0077] The present disclosure provides a tactile feedback module, as shown in Figure 2, Figure 6 or Figure 9, which includes: a touch module 11 having a touch surface S0; a base plate 141, arranged on a side of the touch module 11 away from the touch surface S0; an actuator 13, arranged between the touch module 11 and the base plate 141, the actuator 13 and the touch module 11 are connected via a first support portion 16, and the actuator 13 and the base plate 141 are connected via a second support portion 17. The actuator 13 is used to drive the touch module 11 to vibrate in response to a driving signal to form tactile feedback on the touch surface S0.

[0078] The first support portion 16 fixes the touch module 11 and the actuator 13 and transmits the vibration of the actuator 13 to the touch module 11. The second support portion 17 fixes the actuator 13 to the bottom plate 141.

[0079] The tactile feedback module provided herein utilizes a split first support portion 16 and second support portion 17 to secure the actuator 13 between the touch module 11 and the base plate 141. This improves the stability and reliability of the actuator 13, facilitates securing heavy display modules, and enables human-computer interaction on an in-vehicle touchscreen display. Furthermore, positioning the actuator 13 on the side of the touch module 11 facing away from the touch surface S0 facilitates achieving a narrow bezel.

[0080] The tactile feedback module provided in the present disclosure can be applied to in-vehicle display systems to provide users with real-time tactile feedback based on touch information, etc., which is of great significance and value in improving driving safety, the effectiveness of human-computer interaction, and enriching the interactive experience.

[0081] For example, the touch module 11 may include one or more of a touch circuit, a display panel, and a backlight module, etc., which is not limited in the present disclosure.

[0082] It should be noted that Figures 1, 3 to 5 and 8 exemplarily show planar structural schematic diagrams of several tactile feedback module implementation plans, Figure 2 is a cross-sectional structural schematic diagram of the tactile feedback module shown in Figure 1, 3 or 4 along the AA' position, Figure 6 is a cross-sectional structural schematic diagram of the tactile feedback module shown in Figure 5 along the BB' position, and Figure 9 is a cross-sectional structural schematic diagram of the tactile feedback module shown in Figure 8.

[0083] For example, as shown in FIG14 , the haptic feedback module's drive component 164 can generate a drive signal based on the touch information of a touch-sensitive object on the touch module 11 and output it to the actuator 13. In response to the drive signal, the actuator 13 causes the touch module 11 to vibrate, thereby providing tactile feedback on the touch surface S0. The touch information includes at least one of the following: touch location, touch duration, and touch action. The touch-sensitive object can be an object such as a finger or a stylus.

[0084] In some embodiments, as shown in any one of Figures 1 to 6, the actuator 13 includes a first surface S1 and a second surface S2, the first support portion 16 is connected to the first surface S1, the second support portion 17 is connected to the second surface S2, and the first surface S1 and the second surface S2 are arranged opposite to each other.

[0085] In this embodiment, the oppositely disposed first surface S1 and second surface S2 are connected to the touch module 11 and the bottom plate 141 respectively through different supporting parts, namely the first supporting part 16 and the second supporting part 17 , which can improve the stability of the actuator 13 .

[0086] In some embodiments, as shown in any of Figures 1 to 6 , the first surface S1 and the second surface S2 are disposed opposite each other in a first direction f1, and the first direction f1 is parallel to the touch surface S0. This facilitates the actuator 13 driving the touch module 11 to vibrate in a direction parallel to the touch surface S0 (i.e., horizontally).

[0087] The first surface S1 and the second surface S2 are perpendicular to the first direction f1.

[0088] In some embodiments, as shown in Figure 2, Figure 6 or Figure 9, the first supporting portion 16 includes a first supporting surface 151 and a second supporting surface 152 that are cross-connected to each other, the first supporting surface 151 is parallel to the touch surface S0, and the second supporting surface 152 is located on the side of the first supporting surface 151 away from the touch module 11. The first supporting surface 151 is connected to the touch module 11, and the second supporting surface 152 is connected to the first surface S1.

[0089] For example, as shown in Figures 2, 6, or 9, the first support surface 151 and the second support surface 152 are perpendicular to each other. The first support surface 151 and the second support surface 152 can be integrally formed and made of the same material. In this way, the first support portion 16 can be integrally formed, simplifying the processing and installation process.

[0090] In some embodiments, as shown in Figure 2, Figure 6 or Figure 9, the second support portion 17 includes a third support surface 153 and a fourth support surface 154 that are cross-connected to each other, the third support surface 153 is parallel to the bottom plate 141, and the fourth support surface 154 is located on the side of the third support surface 153 away from the bottom plate 141. The third support surface 153 is connected to the bottom plate 141, and the fourth support surface 154 is connected to the second surface S2.

[0091] For example, as shown in Figures 2, 6, or 9, the third support surface 153 and the fourth support surface 154 are perpendicular to each other. The third support surface 153 and the fourth support surface 154 can be integrally formed and made of the same material. In this way, the second support portion 17 can be integrally formed, simplifying the processing and installation process.

[0092] In some embodiments, as shown in FIG2 , FIG6 or FIG9 , the entire first surface S1 is in contact with the second support surface 152. This ensures that the vibration of the actuator 13 is transmitted to the touch module 11 with almost no attenuation, reducing vibration attenuation at the connection position.

[0093] In some embodiments, as shown in Figures 2, 6, or 9, the entire second surface S2 is in contact with the fourth support surface 154. This helps to increase the amplitude of the actuator 13 in the main vibration direction while reducing vibration components in other directions.

[0094] To prevent direct contact between the actuator 13 and the touch module 11, in some embodiments, as shown in FIG2 , FIG6 , or FIG9 , the size of the second support surface 152 is larger than the size of the actuator 13 in the normal direction f3 of the touch surface S0. This ensures that almost all vibrations generated by the actuator 13 are transmitted to the touch module 11 through the first support portion 16, thus preventing vibration dispersion.

[0095] Furthermore, as shown in FIG. 2 , FIG. 6 or FIG. 9 , in the normal direction f3 of the touch surface S0 , the first surface S1 is connected to a portion of the second supporting surface 152 away from the touch module 11 .

[0096] To avoid vibration attenuation caused by direct contact between the actuator 13 and the base plate 141 , in some embodiments, as shown in FIG. 2 , FIG. 6 or FIG. 9 , the size of the fourth support surface 154 is larger than the size of the actuator 13 in the normal direction f3 of the touch surface S0 .

[0097] Furthermore, as shown in FIG. 2 , FIG. 6 or FIG. 9 , in the normal direction f3 of the touch surface S0 , the second surface S2 is connected to a portion of the fourth supporting surface 154 close to the touch module 11 .

[0098] In some embodiments, as shown in FIG. 7 , in the second direction f2 , the second support surface 152 is larger than the first surface S1 , the fourth support surface 154 is larger than the second surface S2 , and the second direction f2 is parallel to the touch surface S0 and perpendicular to the first direction f1 .

[0099] In some embodiments, as shown in FIG7 , in the second direction f2, the first surface S1 is connected to the middle area of ​​the second supporting surface 152, the second surface S2 is connected to the middle area of ​​the fourth supporting surface 154, and the edge areas of the second supporting surface 152 and the edge areas of the fourth supporting surface 154 are connected via a rigid connector 71. The rigid connector 71 is substantially parallel to the touch surface S0 or the first direction f1.

[0100] By connecting the first support portion 16 and the second support portion 17 via the rigid connector 71, the vibration of the touch module 11 driven by the actuator 13 in the normal direction f3 of the touch surface S0 can be weakened, thereby facilitating the vibration of the touch module 11 driven by the actuator 13 in the direction parallel to the touch surface S0.

[0101] In an embodiment, the tactile feedback module may be provided with one or more rigid connectors 71 to connect the edge areas of the oppositely disposed second support surface 152 and fourth support surface 154. For example, in FIG7 , the tactile feedback module is provided with two rigid connectors 71, located on either side of the actuator 13. This further reduces the vibration of the touch module 11 caused by the actuator 13 in the normal direction f3 of the touch surface S0 and further strengthens the vibration of the touch module 11 caused by the actuator 13 in a direction parallel to the touch surface S0.

[0102] Exemplarily, as shown in FIG. 7 , the rigid connector 71 may include a screw 711 and a nut 712 . The screw 711 passes through the through holes on the second support surface 152 and the fourth support surface 154 in sequence and is connected to the nut 712 .

[0103] To prevent the rigid connector 71 from limiting the horizontal vibration of the touch module 11 (e.g., parallel to the touch surface S0), an elastic gasket 72 can be provided between the rigid connector 71 and the first support portion 16. The elastic gasket 72 is made of a material capable of elastic deformation, such as a rubber ring.

[0104] Exemplarily, as shown in FIG. 7 , the elastic washer 72 is passed through the screw 711 and is located between the first support portion 16 and the nut 712 .

[0105] In some embodiments, the shape of the first support surface 151 includes at least one of the following: regular shapes such as polygon, circle, ellipse, sector, ring, and irregular shapes. The polygon includes a non-chamfered polygon or a chamfered polygon.

[0106] For example, as shown in Figures 1 and 3 to 5, the first support surface 151 is rectangular in shape. As shown in Figure 8, the first support surface 151 is trapezoidal in shape.

[0107] In some embodiments, the shape of the third support surface 153 includes at least one of the following: polygon, circle, ellipse, sector, ring, and irregular shape, wherein the polygon includes a non-chamfered polygon or a chamfered polygon.

[0108] For example, as shown in Figures 1 and 3 to 5, the third support surface 153 is rectangular in shape. As shown in Figure 8, the third support surface 153 is trapezoidal in shape.

[0109] In some embodiments, as shown in Figures 2, 6, and 9, the first support portion 16 includes a first support plate 161. The first support surface 151 is the surface of the first support plate 161 that is close to the touch module 11. The width of the first support plate 161 is greater than or equal to the thickness of the first support plate 161. The width of the first support plate 161 is the dimension of the first support plate 161 in a direction parallel to the touch surface S0, and the thickness of the first support plate 161 is the dimension of the first support plate 161 in a direction perpendicular to the touch surface S0. In this way, the vibration contact surface between the first support portion 16 and the touch module 11 can be increased, the mechanical stability of the tactile feedback module can be improved, and the thickness of the tactile feedback module can be reduced.

[0110] In some embodiments, as shown in Figures 2, 6, and 9, the second support portion 17 includes a second support plate 171. The third support surface 153 is the surface of the second support plate 171 close to the bottom plate 141. The width of the second support plate 171 is greater than or equal to the thickness of the second support plate 171. The width of the second support plate 171 is the dimension of the second support plate 171 in a direction parallel to the touch surface S0, and the thickness of the second support plate 171 is the dimension of the second support plate 171 in a direction perpendicular to the touch surface S0. In this way, the contact area between the second support portion 17 and the bottom plate 141 can be increased, the mechanical stability of the tactile feedback module can be improved, and the thickness of the tactile feedback module can be reduced.

[0111] For example, the actuator 13 is a device that utilizes the inverse piezoelectric effect of piezoelectric materials. The inverse effect of the "direct piezoelectric effect," that is, the elastic deformation of a dielectric under the drive of an electrical signal, is called the "inverse piezoelectric effect."

[0112] In some embodiments, the actuator 13 includes at least one of the following: PZT piezoelectric film, monolithic piezoelectric ceramic, stacked piezoelectric ceramic, cymbal-type piezoelectric ceramic (as shown in Figures 1 to 7), monolithic polyvinylidene fluoride film, stacked polyvinylidene fluoride film, and cymbal-type polyvinylidene fluoride film, etc.

[0113] Compared with the monolithic structure, the actuators with stacked structure and cymbal structure have the characteristics of low voltage drive, stronger vibration and larger displacement, and are more suitable for achieving tactile feedback effects on large-sized and heavy-weight tactile feedback modules.

[0114] The actuator 13 in FIG7 is a cymbal-shaped piezoelectric ceramic structure. As shown in FIG7 , the actuator 13 includes a centrally located piezoelectric ceramic sheet 73 and hinge structures 74 disposed on either side of the piezoelectric ceramic sheet 73. The hinge structures 74 connect the edges of the piezoelectric ceramic sheet 73, with a gap between the central region of the piezoelectric ceramic sheet 73 and the hinge structures 74. The surface of the hinge structure 74 facing away from the piezoelectric ceramic sheet 73 is either a first surface S1 or a second surface S2.

[0115] In some embodiments, the first support portion 16 is rigidly connected to the actuator 13, and the first support portion 16 is rigidly connected to the touch module 11. This ensures that the actuator 13 can drive the touch module 11 to vibrate together without causing too much vibration attenuation at the connection position.

[0116] In some embodiments, a flexible connection is formed between the second support portion 17 and the bottom plate 141. By flexibly connecting the second support portion 17 and the bottom plate 141, the bottom plate 141 can be prevented from being excited to vibrate.

[0117] Because the vehicle-mounted display touch module 11 is large, rigid, and heavy, in order to improve the mechanical stability of the vehicle-mounted display tactile feedback module, in some embodiments, a rigid connection is formed between the second support portion 17 and the base plate 141. This rigid connection between the second support portion 17 and the base plate 141 helps increase the vibration amplitude of the touch module 11.

[0118] The second support portion 17 and the second surface S2 may be rigidly connected or flexibly connected, which is not limited in the present disclosure.

[0119] For example, the rigid connection can be achieved by gluing with hard glue such as epoxy resin glue, by metal welding, or by rigid connectors such as screws.

[0120] For example, as shown in Figures 8 and 9, threaded holes are provided on the first support plate 161 of the first support portion 16, and corresponding threaded holes are also provided on the surface of the touch module 11 facing away from the touch surface S0. By screwing in screws, a rigid connection between the first support portion 16 and the touch module 11 can be achieved. The threaded holes extend perpendicularly to the touch surface S0, and the number of the threaded holes can be one, two, three (as shown in Figure 8), or more. As shown in Figure 9, the surface of the touch module 11 facing away from the touch surface S0 can have a boss T1, and the threaded hole is provided within the boss T1.

[0121] For example, as shown in Figures 8 and 9, threaded holes are provided on the second support plate 171 of the second support portion 17, and corresponding threaded holes are also provided on the surface of the bottom plate 141 near the touch film assembly 11. Screwing in screws can achieve a rigid connection between the second support portion 17 and the bottom plate 141. The threaded holes extend perpendicular to the touch surface S0, and the number of the threaded holes can be one, two, three (as shown in Figure 8), or more.

[0122] Exemplarily, the flexible connection can be connected by pasting with soft glue. The soft glue can be, for example, double-sided tape, VHB tape (polyacrylate double-sided foam tape), silicone and other flexible tapes, and can also be liquid glue such as polyurethane glue. This disclosure does not limit this.

[0123] Exemplarily, the orthographic projection of the base plate 141 on the touch surface S0 can cover the orthographic projection of the touch module 11 on the touch surface S0 (as shown in FIG. 2 ), or the orthographic projection of the base plate 141 on the touch surface S0 is within the range of the orthographic projection of the touch module 11 on the touch surface S0 (as shown in FIG. 6 ).

[0124] Exemplarily, as shown in FIG. 2, the haptic feedback module further includes a side plate 142. The side plate 142 is located on one side of the bottom plate 141 and is connected to the edge of the bottom plate 141. The bottom plate 141 and the side plate 142 enclose an accommodation space and a window. The touch module 11 is disposed in the accommodation space, and the touch surface S0 faces the window. The bottom plate 141 and the side plate 142 form the module outer frame 14.

[0125] In a specific implementation, the module outer frame 14 may not include the side plate 142, as shown in FIG. 6.

[0126] Exemplarily, as shown in FIGS. 2, 6 or 9, the haptic feedback module further includes a cover plate 18. The cover plate 18 is located on the side of the touch module 11 close to the touch surface S0 and serves to encapsulate and protect the touch module 11. The cover plate 18 may be strengthened glass or the like.

[0127] Exemplarily, as shown in FIG. 2, the cover plate 18 is located on the side of the side plate 142 away from the bottom plate 141, and the cover plate 18 and the side plate 142 are flexibly connected to prevent vibration from being transmitted to the module outer frame 14 through the cover plate 18.

[0128] In some embodiments, the elastic modulus of the first support portion 16 is greater than or equal to 10 GPa and less than or equal to 300 GPa, such as dozens of GPa. The material of the first support portion 16 may be selected from aluminum alloy, titanium alloy, tungsten steel, stainless steel, etc., and the present disclosure does not limit this.

[0129] In some embodiments, the elastic modulus of the second support portion 17 is greater than or equal to 10 GPa and less than or equal to 300 GPa, such as dozens of GPa. The material of the second support portion 17 may be selected from aluminum alloy, titanium alloy, tungsten steel, stainless steel, etc., and the present disclosure does not limit this.

[0130] In some embodiments, the materials of the first support portion 16 and the second support portion 17 may be the same or different.

[0131] In some embodiments, the longitudinal cross-sectional shape of the first support portion 16 includes at least one of the following: I-shaped, Z-shaped, C-shaped, I-shaped, L-shaped, T-shaped, cylindrical, and rectangular. The longitudinal cross-section of the first support portion 16 is perpendicular to the touch surface S0.

[0132] In some embodiments, the longitudinal cross-sectional shape of the second support portion 17 includes at least one of the following: I-shaped, Z-shaped, C-shaped, I-shaped, L-shaped, T-shaped, cylindrical, and rectangular. The longitudinal cross-section of the second support portion 17 is perpendicular to the touch surface S0.

[0133] In some embodiments, the longitudinal cross-sections of the first support portion 16 and the second support portion 17 may be the same or different.

[0134] Exemplarily, as shown in FIG. 2 , FIG. 6 or FIG. 9 , the longitudinal cross-sections of the first support portion 16 and the second support portion 17 are identical and both are L-shaped.

[0135] For example, the tactile feedback module may include one or multiple actuators 13 separated from each other. As shown in FIG1 or FIG3 , the tactile feedback module includes two actuators 13; as shown in FIG4 , the tactile feedback module includes four actuators 13; as shown in FIG5 or FIG8 , the tactile feedback module includes one actuator 13.

[0136] In some embodiments, as shown in FIG. 1 , FIG. 3 or FIG. 4 , the tactile feedback module includes a first actuation group G1 and a second actuation group G2 , the first actuation group G1 and the second actuation group G2 include the same number of actuators 13 , and the first actuation group G1 and the second actuation group G2 are symmetrically arranged.

[0137] In this embodiment, by symmetrically arranging the first actuating group G1 and the second actuating group G2 , the uniformity of vibration on the touch surface S0 can be improved.

[0138] The first actuation group G1 and the second actuation group G2 may include one actuator 13 (as shown in FIG. 1 or FIG. 3 ), or multiple actuators 13 (two as shown in FIG. 4 ), which is not limited in the present disclosure.

[0139] For example, as shown in Figures 1 and 3 , the first actuation group G1 and the second actuation group G2 are axially symmetrical, with the axis of symmetry being the perpendicular midline of the line segment connecting the first actuation group G1 and the second actuation group G2. In Figures 1 and 3 , the touch surface S0 is a rectangle, and the axis of symmetry between the first actuation group G1 and the second actuation group G2 is the axis of symmetry of the rectangle itself.

[0140] 1, 3 or 4, the first actuation group G1 and the second actuation group G2 are symmetrical about the center. In FIG1, 3 and 4, the touch surface S0 is a rectangle, and the symmetry center of the first actuation group G1 and the second actuation group G2 is the geometric center of the rectangle.

[0141] In some embodiments, as shown in FIG1 or FIG3 , the orthographic projection of the first actuation group G1 on the touch surface S0 is positioned near the first edge b1 of the touch surface S0, and the orthographic projection of the second actuation group G2 on the touch surface S0 is positioned near the second edge b2 of the touch surface S0, with the first edge b1 and the second edge b2 being positioned opposite each other. This can further improve the uniformity of vibration on the touch surface S0.

[0142] 1 or 3 , the first actuating group G1 and the second actuating group G2 are axially symmetrically arranged, the touch surface S0 is a rectangle, and the first edge b1 and the second edge b2 are a pair of short sides (as shown in FIG. 1 ) or a pair of long sides (as shown in FIG. 3 ) of the rectangle.

[0143] In some embodiments, as shown in FIG1 or FIG3 , the orthographic projection of the first actuation group G1 on the touch surface S0 is positioned near the center of the first edge b1, and the orthographic projection of the second actuation group G2 on the touch surface S0 is positioned near the center of the second edge b2. This can further improve the uniformity of vibration on the touch surface S0.

[0144] For example, as shown in FIG1 , the touch surface S0 is rectangular, the orthographic projection of the first actuation group G1 on the touch surface S0 is positioned near the center of the left edge (i.e., first edge b1) of the touch surface S0, and the orthographic projection of the second actuation group G2 on the touch surface S0 is positioned near the center of the right edge (i.e., second edge b2) of the touch surface S0. As shown in FIG3 , the touch surface S0 is rectangular, the orthographic projection of the first actuation group G1 on the touch surface S0 is positioned near the center of the top edge (i.e., first edge b1) of the touch surface S0, and the orthographic projection of the second actuation group G2 on the touch surface S0 is positioned near the center of the bottom edge (i.e., second edge b2) of the touch surface S0.

[0145] In some embodiments, as shown in Figure 1 or Figure 3, the actuator 13 includes a piezoelectric piece 130 (such as a piezoelectric film or a piezoelectric ceramic piece 73), the piezoelectric piece 130 of the actuator 13 located in the first actuation group G1 is parallel to the first edge b1, and the piezoelectric piece 130 of the actuator 13 located in the second actuation group G2 is parallel to the second edge b2.

[0146] Exemplarily, as shown in FIG. 1 or FIG. 3 , the first surface S1 and the second surface S2 are parallel to the piezoelectric sheet 130 .

[0147] For example, the vibration direction of the actuator 13 may be parallel to the touch surface S0 or perpendicular to the touch surface S0 , which is not limited in the present disclosure.

[0148] Exemplarily, the main vibration direction of the actuator 13 is perpendicular to the plane where the piezoelectric piece 130 is located.

[0149] In some embodiments, as shown in any one of FIG. 1 to FIG. 4 , the actuator 13 includes a first actuator 131 , and an orthographic projection of the first actuator 131 on the touch surface S0 is disposed near an edge of the touch surface S0 .

[0150] In some embodiments, as shown in any of Figures 1 to 4 , the first support portion 16 connected to the first actuator 131 is located on a side closer to the edge of the second support portion 17. That is, for the first actuator 131, the first support portion 16 for transmitting vibration is closer to the edge, which helps improve the uniformity of vibration on the touch surface S0.

[0151] For example, as shown in FIG1 or FIG4 , for the first actuator 131 near the left edge, the first support portion 16 connected to the first actuator 131 is located on the side of the second support portion 17 near the left edge. For the first actuator 131 near the right edge, the first support portion 16 connected to the first actuator 131 is located on the side of the second support portion 17 near the right edge. As shown in FIG3 or FIG4 , for the first actuator 131 near the top edge, the first support portion 16 connected to the first actuator 131 is located on the side of the second support portion 17 near the top edge. For the first actuator 131 near the bottom edge of the touch surface S0, the first support portion 16 connected to the first actuator 131 is located on the side of the second support portion 17 near the bottom edge.

[0152] 1 , 3 or 4 , the first surface S1 and the second surface S2 of the first actuator 131 may be parallel to the edge to which the first actuator 131 is close, and the first surface S1 is located outside the second surface S2 , i.e., on the side close to the edge.

[0153] For example, as shown in FIG4 , the touch surface S0 is polygonal in shape, and the plurality of first actuators 131 are disposed adjacent to different sides of the polygon. In FIG4 , the touch surface S0 is quadrilateral in shape, and the touch feedback module includes four first actuators 131 , each disposed adjacent to a side of the quadrilateral.

[0154] For example, near each side of the polygon, there may be one first actuator 131 (as shown in FIG. 4 ), or a plurality of first actuators 131 may be provided, which is not limited in the present disclosure.

[0155] In order to generate vibrations in multiple side directions of the touch surface S0, in some embodiments, as shown in Figure 5 or Figure 8, the shape of the touch surface S0 is a quadrilateral, the actuator 13 includes a second actuator 132, the second actuator 132 includes a piezoelectric piece 130, and the angle between the orthographic projection of the piezoelectric piece 130 in the second actuator 132 on the touch surface S0 and one side of the quadrilateral can be greater than or equal to 10° and less than or equal to 80°.

[0156] Furthermore, to improve the uniformity of vibration on the touch surface S0, the angle between the orthographic projection of the piezoelectric piece 130 in the second actuator 132 on the touch surface S0 and one side of the quadrilateral can be greater than or equal to 30° and less than or equal to 60°, for example, the angle is 45°.

[0157] 5 and 8 , the touch surface S0 is in the shape of a rectangle, and the included angle between the orthographic projection of the piezoelectric piece 130 in the second actuator 132 on the touch surface S0 and the long side or the short side of the rectangle is 45°.

[0158] It should be noted that the angle between the orthographic projection of the piezoelectric sheet 130 in the second actuator 132 on the touch surface S0 and the long side of the rectangle can also be 0°, that is, the piezoelectric sheet 130 in the second actuator 132 is parallel to the long side direction; it can also be 90°, that is, the piezoelectric sheet 130 in the second actuator 132 is perpendicular to the long side direction; it can also be other angles, which are not limited in this disclosure.

[0159] In some embodiments, as shown in FIG. 5 or FIG. 8 , the orthographic projection of the second actuator 132 on the touch surface S0 is disposed close to the geometric center of the touch surface S0 .

[0160] Exemplarily, as shown in FIG5 , the tactile feedback module includes a second actuator 132 , and the orthographic projection of the second actuator 132 on the touch surface S0 covers the geometric center of the touch surface S0 .

[0161] Exemplarily, as shown in FIG8 , the tactile feedback module includes a second actuator 132 , the orthographic projection of the second actuator 132 on the touch surface S0 is close to the geometric center of the touch surface S0 and is offset from the geometric center of the touch surface S0 .

[0162] 8 , the distance between the orthographic projection center of the second actuator 132 on the touch surface S0 and the geometric center of the touch surface S0 is smaller than the distance between the orthographic projection center of the second actuator 132 on the touch surface S0 and the edge of the touch surface S0.

[0163] For example, the tactile feedback module may include a plurality of second actuators 132 , and the orthographic projections of the plurality of second actuators 132 on the touch surface S0 may be symmetrically arranged around the geometric center of the touch surface S0 .

[0164] In a specific implementation, in a direction parallel to the touch surface S0 , the multiple actuators 13 may be arranged in an array or evenly, which is not limited in the present disclosure.

[0165] In some embodiments, as shown in any one of FIG. 1 to FIG. 6 , the tactile feedback module further includes: a support column 12 located between the touch module 11 and the base plate 141 , with one end of the support column 12 connected to the touch module 11 and the other end connected to the base plate 141 .

[0166] The support column 12 serves to fix the touch module 11 , and is used to form a gap between the touch module 11 and the bottom plate 141 to accommodate the actuator 13 .

[0167] In some embodiments, the main body material of the support column 12 is a rigid material, the support column 12 and the touch module 11 are flexibly connected, and the support column 12 and the bottom plate 141 bracket are rigidly connected.

[0168] In this embodiment, since rigidity resists deformation, the rigid support column 12 and the rigid connection between the support column 12 and the base plate 141 can improve the stability of the touch module 11. Furthermore, the flexible connection between the support column 12 and the touch module 11 ensures that the touch module 11 has sufficient room to move when vibrated by the actuator 13, thereby preventing vibration attenuation of the touch module 11.

[0169] For example, the rigid support column 12 and the base plate 141 can be bonded together using a hard adhesive such as epoxy resin, can be connected by metal welding, can be connected by a rigid connector 71 such as screws 711, or can be an integral structure. The support column 12 and base plate 141 of the integral structure can be integrally formed, simplifying the processing and installation process.

[0170] Exemplarily, the rigid support column 12 and the touch module 11 can be bonded and fixed with soft glue. The soft glue can be, for example, double-sided tape, VHB tape (polyacrylate double-sided foam tape), silicone and other flexible tapes, or liquid glue such as polyurethane glue. This disclosure does not limit this.

[0171] For example, the elastic modulus of the support column 12 is greater than or equal to 10 GPa and less than or equal to 300 GPa, such as several tens of GPa, etc. The material of the support column 12 can be aluminum alloy, titanium alloy, tungsten steel, stainless steel, etc., which is not limited in this disclosure.

[0172] In some embodiments, the main material of the support column 12 is a flexible material, the support column 12 and the touch module 11 are connected by adhesive bonding, and the support column 12 and the bottom plate 141 bracket are connected by adhesive bonding.

[0173] In this embodiment, since the flexible material has the ability to deform without being destroyed, the flexible support column 12 and the adhesive connection between the support column 12 and the base plate 141 can increase the activity space of the touch module 11 during vibration, thereby minimizing the attenuation of the vibration of the touch module 11.

[0174] Illustratively, the elastic modulus of the support column 12 is greater than or equal to 10 MPa and less than or equal to 300 MPa, such as several tens of MPa, etc. The material of the support column 12 can be double-sided tape, VHB tape, silicone or rubber pad, etc., which is not limited in this disclosure.

[0175] In order to improve the stability of the touch module 11 , as shown in any one of FIG. 1 , FIG. 3 to FIG. 5 and FIG. 8 , the tactile feedback module includes a plurality of support pillars 12 separated from each other.

[0176] In some embodiments, as shown in any one of Figures 1, 3 to 5, and 8, the touch surface S0 is a polygon, and the orthographic projections of the plurality of support posts 12 on the touch surface S0 are respectively arranged close to different inner corners of the polygon. This can further improve the stability and reliability of the tactile feedback module.

[0177] For example, as shown in any of Figures 1, 3 to 5, and 8, the number of support posts 12 in the tactile feedback module is the same as the number of interior angles of the polygon. In Figures 1, 3 to 5, and 8, the touch surface S0 is a quadrilateral, and the tactile feedback module includes four support posts 12, with the orthographic projections of these four support posts 12 on the touch surface S0 being positioned near different interior angles.

[0178] In some embodiments, as shown in any one of FIG. 1 , FIG. 3 to FIG. 5 , and FIG. 8 , the orthographic projection of the support column 12 on the touch surface S0 includes at least one of the following shapes: a circle, an ellipse, a polygon, a sector, a ring, and an irregular shape. The polygon may be a quadrilateral such as a triangle, a square, or a rectangle, a pentagon, or a hexagon.

[0179] For example, as shown in FIG. 1 , FIG. 3 , FIG. 5 and FIG. 8 , the orthographic projection of the support column 12 on the touch surface S0 is a square; as shown in FIG. 4 , the orthographic projection of the support column 12 on the touch surface S0 is a circle.

[0180] Exemplarily, the shape of the touch surface S0 includes at least one of the following: circle, ellipse, polygon, sector, ring, and irregular shape. As shown in any one of FIG1 , FIG3 to FIG5 and FIG8 , the shape of the touch surface S0 is a rectangle.

[0181] The inventor tested the tactile feedback module shown in Figure 5, and tested the acceleration values ​​at different positions when the actuator 13 drove the touch module 11 to vibrate. Referring to Figure 10, four test positions are shown, wherein the test position P1 is set close to the geometric center of the touch surface S0, and the other three test positions P2 to P4 are set close to the edge of the touch surface S0. Referring to Figure 11, the acceleration values ​​measured at the four test positions are shown. According to the test results, the relative deviation of the acceleration values ​​at different positions is calculated to be less than 1.5%, indicating that the acceleration distribution at different positions on the touch surface S0 is relatively uniform, and the tactile sensations at different positions are basically the same. Referring to Figure 12, the output waveform of the accelerometer at the test position P1 is shown, and the corresponding acceleration value is 3.63g, where g is the acceleration due to gravity.

[0182] The present disclosure provides a tactile feedback module, as shown in Figure 2, Figure 6 or Figure 13, which includes: a touch module 11 having a touch surface S0; a base plate 141, arranged on a side of the touch module 11 away from the touch surface S0; a support portion 15 and an actuator 13, wherein the support portion 15 is used to fix the actuator 13 between the touch module 11 and the base plate 141, and the actuator 13 is used to drive the touch module 11 to vibrate in response to a driving signal to form tactile feedback on the touch surface S0; wherein the support portion 15 and the actuator 13 are rigidly connected, the actuator 13 and the touch module 11 are rigidly connected, and the support portion 15 and the base plate 141 are rigidly or flexibly connected.

[0183] By rigidly connecting the support portion 15 and the actuator 13 , the stability of the actuator 13 can be improved.

[0184] By rigidly connecting the actuator 13 and the touch module 11, it is possible to ensure that the actuator 13 can drive the touch module 11 to vibrate together without causing excessive vibration attenuation at the connection point. The rigid connection between the actuator 13 and the touch module 11 means that the connection path between the actuator 13 and the touch module 11 is made of rigid materials that are not easily deformed.

[0185] By flexibly connecting the support portion 15 and the bottom plate 141 , the bottom plate 141 can be prevented from being excited to vibrate.

[0186] Since the vehicle-mounted display touch module 11 is large in size, rigid, and heavy, rigidly connecting the support portion 15 and the base plate 141 can improve the mechanical stability of the vehicle-mounted display touch module 11 and increase the vibration amplitude of the touch module 11 .

[0187] In some embodiments, as shown in Figure 2, Figure 6 or Figure 9, the actuator 13 includes a first surface S1 and a second surface S2 arranged opposite to each other in a first direction f1, the first direction f1 is parallel to the touch surface S0, and the support portion 15 includes: a first support portion 16 connected between the first surface S1 and the touch module 11; and a second support portion 17 connected between the second surface S2 and the base plate 141.

[0188] This embodiment facilitates the actuator 13 to drive the touch module 11 to generate lateral vibration in a direction parallel to the touch surface S0 (ie, a horizontal direction).

[0189] Specifically, the first support portion 16 is rigidly connected to the actuator 13 and the touch module 11; the second support portion 17 is flexibly or rigidly connected to the bottom plate 141. The second support portion 17 can be rigidly or flexibly connected to the second surface S2.

[0190] In some embodiments, as shown in FIG13 , the actuator 13 includes a third surface S3 and a fourth surface S4 that are relatively arranged in the normal direction f3 of the touch surface S0, the third surface S3 is connected to the touch module 11, and the support portion 15 includes: a third support portion 111, connected between the fourth surface S4 and the base plate 141.

[0191] This embodiment facilitates the actuator 13 to drive the touch module 11 to generate longitudinal vibration in a direction perpendicular to the touch surface S0 (ie, the vertical direction).

[0192] Specifically, the third surface S3 and the touch module 11 are rigidly connected, the third support portion 111 and the bottom plate 141 are rigidly or flexibly connected, and the third support portion 111 and the fourth surface S4 can be rigidly or flexibly connected.

[0193] In some embodiments, as shown in FIG. 2 , FIG. 6 or FIG. 13 , the tactile feedback module further includes: a support column 12 located between the touch module 11 and the base plate 141 , with one end of the support column 12 connected to the touch module 11 and the other end connected to the base plate 141 .

[0194] It should be noted that the first support portion 16 , the second support portion 17 , the actuator 13 , the support column 12 , etc. can refer to the description of the above-mentioned tactile feedback module implementation method, and will not be repeated here.

[0195] The present disclosure provides a tactile feedback module, as shown in Figure 2, Figure 6 or Figure 13, including: a touch module 11, having a touch surface S0; a base plate 141, arranged on the side of the touch module 11 away from the touch surface S0; an actuator 13, located between the touch module 11 and the base plate 141, the actuator 13 is used to drive the touch module 11 to vibrate in response to a driving signal to form tactile feedback on the touch surface S0; and a support column 12, located between the touch module 11 and the base plate 141; wherein the main material of the support column 12 is a rigid material, one end of the support column 12 is flexibly connected to the touch module 11, and the other end of the support column 12 is rigidly connected to the base plate 141 bracket.

[0196] The support column 12 serves to fix the touch module 11 , and is used to form a gap between the touch module 11 and the bottom plate 141 to accommodate the actuator 13 .

[0197] In the present disclosure, since rigid materials resist deformation, the rigid support column 12 and the rigid connection between the support column 12 and the base plate 141 can improve the stability of the touch module 11. Furthermore, the flexible connection between the support column 12 and the touch module 11 ensures that the touch module 11 has a certain amount of space to move or deform when vibrated by the actuator 13, thereby preventing vibration attenuation of the touch module 11.

[0198] Exemplarily, the rigid support column 12 and the base plate 141 can be bonded together by hard glue such as epoxy resin glue, can be connected by metal welding, can be connected by rigid connectors 71 such as screws 711, can be an integrated structure, etc.

[0199] Exemplarily, the rigid support column 12 and the touch module 11 can be bonded and fixed with soft glue. The soft glue can be, for example, double-sided tape, VHB tape (polyacrylate double-sided foam tape), silicone and other flexible tapes, or liquid glue such as polyurethane glue. This disclosure does not limit this.

[0200] For example, the elastic modulus of the support column 12 is greater than or equal to 10 GPa and less than or equal to 300 GPa, such as several tens of GPa, etc. The material of the support column 12 can be aluminum alloy, titanium alloy, tungsten steel, stainless steel, etc., which is not limited in this disclosure.

[0201] In some embodiments, as shown in FIG. 2 , FIG. 6 , or FIG. 13 , the tactile feedback module further includes a support portion 15 for fixing the actuator 13 between the touch module 11 and the base plate 141 .

[0202] It should be noted that the actuator 13 , the supporting portion 15 , the supporting column 12 and the like can all be described with reference to the above description of the tactile feedback module implementation scheme, and will not be repeated here.

[0203] The present disclosure also provides a tactile feedback device, referring to Figure 14, which includes: a tactile feedback module as provided in any embodiment, a touch module 11 including at least one of the following: a touch circuit, a display panel and a backlight module; and a driving component 164, which is respectively connected to the touch module 11 and the actuator 13, and is used to drive the display panel to display an image, and output a driving signal to the actuator 13 based on touch information of the touch body on the touch module 11, so that the actuator 13 responds to the driving signal and drives the touch module 11 to vibrate, thereby forming tactile feedback on the touch surface S0, wherein the touch information includes at least one of the following: touch position, touch time and touch action.

[0204] Those skilled in the art will appreciate that the tactile feedback device provided herein has the advantages of the aforementioned tactile feedback module. The tactile feedback device provided herein can be integrated into products such as laptops and monitors, and can be used as a display screen in a variety of fields, including in-vehicle displays and consumer electronics, providing users with a rich and realistic tactile experience.

[0205] As shown in FIG14 , the driver component 164 controls the display of an interactive screen on the display panel. When a touch-sensitive object touches the touch module 11, the touch module 11 detects the touch information. The driver component 164 generates a drive signal based on the detected touch information. This drive signal drives the actuator 13 to vibrate the touch module 11, thereby generating tactile feedback on the surface of the touch module 11. Based on the tactile feedback, the operator can confirm whether their operation is correct and whether the desired effect is achieved.

[0206] 15 shows a demonstration interface displayed on the touch surface S0 of the vehicle-mounted tactile feedback device.

[0207] The touch action may be, for example, an operation gesture of a finger, such as clicking, sliding, and sliding traces.

[0208] It should be noted that the touch circuit can be integrated into the display panel, or can be provided independently of the display panel, for example, attached to the light-emitting side of the display panel, which is not limited in the present disclosure.

[0209] The touch position may be obtained according to a detection result of a touch circuit in the touch module 11 , which is not limited in the present disclosure.

[0210] In order to enable the touch module 11 to detect a touch position, etc., in some embodiments, the touch module 11 may include a capacitive touch circuit or a resistive touch circuit, which is not limited in the present disclosure.

[0211] For a capacitive touch circuit, when a touch object such as a user's finger touches the touch module 11, the touch capacitance of the touch drive electrode and the touch sensing electrode in the touch circuit at the touch position will change. The touch traces in the touch circuit can send the touch capacitance at each position to the drive component 164, and the drive component 164 can determine the touch position based on the touch capacitance at each position.

[0212] In some embodiments, the drive assembly 164 may include a controller and a driver. For example, when a touch-sensitive object applies a touch operation to the touch module 11, the controller responds to the touch operation and, based on the touch information detected by the touch module 11, outputs a drive signal in the form of a digital signal to the driver. The driver performs digital-to-analog conversion on the drive signal in the form of an analog signal and sends the drive signal to the actuator 13. Driven by the drive signal, the actuator 13 vibrates, thereby driving the touch module 11 to vibrate, thereby generating tactile feedback.

[0213] Illustratively, the controller may include at least one of the following: a microcontroller unit (MCU), and an FPGA (Field Programmable Gate Array), etc., which is not limited in this embodiment.

[0214] Exemplarily, when the tactile feedback device is applied to a terminal, the driving component 164 may be a processor in the terminal.

[0215] In some embodiments, as shown in FIG. 14 , the tactile feedback device may further include: an amplifying circuit 165 , connected to the driving component 164 and the actuator 13 , respectively, for amplifying the driving signal output by the driving component 164 and sending the amplified signal to the actuator 13 .

[0216] For example, the driving component 164 may include an audio chip, and the audio chip may generate the driving signal.

[0217] In some embodiments, the display panel may be a liquid crystal display panel or a self-luminous display panel, which is not limited in this disclosure. The self-luminous display panel has a built-in light-emitting device, which may be, for example, an organic light-emitting diode (OLED), a quantum dot light-emitting diode (QLED), a sub-millimeter light-emitting diode (Mini LED), or a micro light-emitting diode (Micro LED).

[0218] In the present disclosure, “a plurality of” means two or more, and “at least one” means one or more, unless otherwise clearly defined.

[0219] In the present disclosure, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present disclosure.

[0220] As used herein, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, product, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, commodity, or apparatus that includes the element.

[0221] References herein to "one embodiment," "some embodiments," "exemplary embodiments," "one or more embodiments," "an example," "an example," "some examples," and the like are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the present disclosure. Schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be included in any one or more embodiments or examples in any suitable manner.

[0222] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any actual relationship or order between these entities or operations.

[0223] When describing some embodiments, the expressions "coupled" and "connected" may be used. For example, when describing some embodiments, the term "connected" may be used to indicate that two or more components are in direct physical or electrical contact with each other. For another example, when describing some embodiments, the term "coupled" may be used to indicate that two or more components are in direct physical or electrical contact. However, the term "coupled" or "communicatively coupled" may also mean that two or more components are not in direct contact with each other, but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0224] “At least one of A, B and C” has the same meaning as “at least one of A, B or C” and both include the following combinations of A, B and C: A only, B only, C only, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B and C.

[0225] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0226] As used herein, the term "if" is optionally interpreted to mean "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined that" or "if [stated condition or event] is detected" are optionally interpreted to mean "upon determining" or "in response to determining" or "upon detecting [stated condition or event]" or "in response to detecting [stated condition or event]," depending on the context.

[0227] The use of "for" or "configured to" herein is intended to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0228] The use of "based on" or "according to" in this document is intended to be open and inclusive. A process, step, calculation, or other action based on one or more stated conditions or values ​​may, in practice, be based on other conditions or values ​​beyond the stated values. A process, step, calculation, or other action based on one or more stated conditions or values ​​may, in practice, be based on other conditions or values ​​beyond the stated values.

[0229] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0230] As used herein, "parallel", "perpendicular", "equal", and "flush" include the situations described and situations similar to the situations described, the range of which is within an acceptable deviation range, wherein the acceptable deviation range is as determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, the difference between the two being equal is less than or equal to 5% of either one. "Flush" includes absolute equality and approximate flushness, wherein the acceptable deviation range of approximate flushness can be, for example, the distance between the two being flush is less than or equal to 5% of either one's size.

[0231] It will be understood that when a layer or element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present therebetween.

[0232] Exemplary embodiments are described herein with reference to cross-sectional and / or plan views that are idealized exemplary drawings. In the drawings, the thicknesses of layers and regions are exaggerated for clarity. Therefore, variations in shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances are contemplated. Therefore, the exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include deviations in shape due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shape of regions of the device and are not intended to limit the scope of the exemplary embodiments.

[0233] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

Claims

1. A tactile feedback module, comprising: A touch module having a touch surface; A bottom plate, arranged on a side of the touch module away from the touch surface; The actuator is arranged between the touch module and the base plate, the actuator is connected to the touch module through a first support part, and the actuator is connected to the base plate through a second support part. The actuator is used to drive the touch module to vibrate in response to a driving signal to form tactile feedback on the touch surface.

2. The tactile feedback module according to claim 1, wherein: The actuator comprises a first surface and a second surface, the first support portion is connected to the first surface, and the second support portion is connected to the second surface; and The first surface and the second surface are arranged opposite to each other in a first direction, and the first direction is parallel to the touch surface.

3. The tactile feedback module according to claim 2, wherein: The first supporting portion includes a first supporting surface and a second supporting surface that are cross-connected to each other, the first supporting surface is parallel to the touch surface, the second supporting surface is located on a side of the first supporting surface away from the touch module, the first supporting surface is connected to the touch module, and the second supporting surface is connected to the first surface.

4. The tactile feedback module according to claim 3, wherein: The second supporting portion includes a third supporting surface and a fourth supporting surface that are cross-connected to each other, the third supporting surface is parallel to the bottom plate, the fourth supporting surface is located on a side of the third supporting surface away from the bottom plate, the third supporting surface is connected to the bottom plate, and the fourth supporting surface is connected to the second surface.

5. The tactile feedback module according to claim 4, wherein: The entire first surface is in contact with and connected to the second supporting surface, and the entire second surface is in contact with and connected to the fourth supporting surface.

6. The tactile feedback module according to claim 5, wherein: In the normal direction of the touch surface, the size of the second supporting surface is larger than the size of the actuator, and the size of the fourth supporting surface is larger than the size of the actuator.

7. The tactile feedback module according to claim 6, wherein: In the normal direction of the touch surface, the first surface is connected to a portion of the second supporting surface away from the touch module, and the second surface is connected to a portion of the fourth supporting surface close to the touch module.

8. The tactile feedback module according to claim 4, wherein: The shape of the first support surface includes at least one of the following: polygon, circle, ellipse, sector, ring and irregular shape; The shape of the third supporting surface includes at least one of the following: polygon, circle, ellipse, sector, ring and irregular shape.

9. The tactile feedback module according to claim 4, wherein: The first supporting portion includes a first supporting plate, the first supporting surface is a surface of the first supporting plate close to the touch module, the width of the first supporting plate is greater than or equal to the thickness of the first supporting plate, the width of the first supporting plate is the size of the first supporting plate in a direction parallel to the touch surface, and the thickness of the first supporting plate is the size of the first supporting plate in a direction perpendicular to the touch surface; The second supporting portion includes a second supporting plate, the third supporting surface is the surface of the second supporting plate close to the bottom plate, the width of the second supporting plate is greater than or equal to the thickness of the second supporting plate, the width of the second supporting plate is the size of the second supporting plate in a direction parallel to the touch surface, and the thickness of the second supporting plate is the size of the second supporting plate in a direction perpendicular to the touch surface.

10. The tactile feedback module according to claim 4, wherein: In the second direction, the first surface is connected to the middle area of ​​the second supporting surface, the second surface is connected to the middle area of ​​the fourth supporting surface, the edge area of ​​the second supporting surface is connected to the edge area of ​​the fourth supporting surface by a rigid connector, and the second direction is parallel to the touch surface and perpendicular to the first direction.

11. The tactile feedback module according to any one of claims 1 to 10, wherein: The tactile feedback module includes a first actuation group and a second actuation group. The first actuation group and the second actuation group include the same number of actuators. The first actuation group and the second actuation group are symmetrically arranged.

12. The tactile feedback module according to claim 11, wherein: The orthographic projection of the first actuation group on the touch surface is arranged close to a first edge of the touch surface, the orthographic projection of the second actuation group on the touch surface is arranged close to a second edge of the touch surface, and the first edge is arranged opposite to the second edge.

13. The tactile feedback module according to claim 12, wherein: The orthographic projection of the first actuating group on the touch surface is arranged close to the center of the first edge, and the orthographic projection of the second actuating group on the touch surface is arranged close to the center of the second edge.

14. The tactile feedback module according to claim 12, wherein: The actuator includes a piezoelectric sheet, the piezoelectric sheet of the actuator in the first actuation group is parallel to the first edge, and the piezoelectric sheet of the actuator in the second actuation group is parallel to the second edge.

15. The tactile feedback module according to any one of claims 1 to 10, wherein: The actuator includes a first actuator, and an orthographic projection of the first actuator on the touch surface is arranged close to an edge of the touch surface.

16. The tactile feedback module according to claim 15, wherein: The first supporting portion connected to the first actuator is located on a side of the second supporting portion close to the edge.

17. The tactile feedback module according to any one of claims 1 to 10, wherein: The touch surface is in the shape of a quadrilateral, the actuator includes a second actuator, the second actuator includes a piezoelectric sheet, and an angle between an orthographic projection of the piezoelectric sheet in the second actuator on the touch surface and one side of the quadrilateral is greater than or equal to 10° and less than or equal to 80°.

18. The tactile feedback module according to claim 17, wherein: The orthographic projection of the second actuator on the touch surface is arranged close to the geometric center of the touch surface.

19. The tactile feedback module according to any one of claims 1 to 10, wherein: The tactile feedback module also includes: The support column is located between the touch module and the bottom plate, one end of the support column is connected to the touch module, and the other end is connected to the bottom plate.

20. The tactile feedback module according to claim 19, wherein: The main material of the support column is a rigid material, the support column and the touch module are flexibly connected, and the support column and the bottom plate bracket are rigidly connected; or The main material of the support column is a flexible material. The support column and the touch module are connected by adhesive bonding, and the support column and the bottom plate bracket are connected by adhesive bonding.

21. The tactile feedback module according to claim 19, wherein: The touch surface is a polygon, and the orthographic projections of the plurality of support posts on the touch surface are respectively arranged close to different inner angles of the polygon.

22. The tactile feedback module according to claim 19, wherein: The orthographic projection shape of the support column on the touch surface includes at least one of the following: a circle, an ellipse, a polygon, a sector, a ring, and an irregular shape.

23. The tactile feedback module according to any one of claims 1 to 10, wherein: The first support portion is rigidly connected to the actuator, the first support portion is rigidly connected to the touch module, and the second support portion is flexibly or rigidly connected to the base plate.

24. The tactile feedback module according to any one of claims 1 to 10, wherein: The longitudinal cross-sectional shape of the first support portion includes at least one of the following: I-shaped, Z-shaped, C-shaped, I-shaped, L-shaped, T-shaped, cylindrical, and rectangular, and the longitudinal cross-section of the first support portion is perpendicular to the touch surface; and / or, The longitudinal cross-sectional shape of the second support portion includes at least one of the following: I-shaped, Z-shaped, C-shaped, I-shaped, L-shaped, T-shaped, cylindrical, and rectangular, and the longitudinal cross-section of the second support portion is perpendicular to the touch surface.

25. The tactile feedback module according to any one of claims 1 to 10, wherein: The actuator includes at least one of the following: PZT piezoelectric thin film, monolithic piezoelectric ceramic, stacked piezoelectric ceramic, cymbal-type piezoelectric ceramic, monolithic polyvinylidene fluoride film, stacked polyvinylidene fluoride film, and cymbal-type polyvinylidene fluoride film.

26. A haptic feedback module, comprising: A touch module having a touch surface; A bottom plate disposed on a side of the touch module背离 the touch surface; A support portion and an actuator, the support portion being configured to fix the actuator between the touch module and the bottom plate, and the actuator being configured to drive the touch module to vibrate in response to a driving signal to form haptic feedback on the touch surface; Wherein, a rigid connection exists between the support portion and the actuator, a rigid connection exists between the actuator and the touch module, and a rigid or flexible connection exists between the support portion and the bottom plate.

27. The tactile feedback module according to claim 26, wherein: The actuator includes a first surface and a second surface disposed opposite to each other in a first direction, the first direction being parallel to the touch surface, and the support portion includes: A first support portion connected between the first surface and the touch module; and A second support portion connected between the second surface and the bottom plate.

28. A haptic feedback module, comprising: A touch module having a touch surface; A bottom plate disposed on a side of the touch module背离 the touch surface; An actuator located between the touch module and the bottom plate, the actuator being configured to drive the touch module to vibrate in response to a driving signal to form haptic feedback on the touch surface; And A support column located between the touch module and the bottom plate; Wherein, the main material of the support column is a rigid material, one end of the support column is flexibly connected to the touch module, and the other end of the support column is rigidly connected to the bottom plate bracket.

29. A haptic feedback device, comprising: The haptic feedback module according to any one of claims 1 to 28, wherein the touch module includes at least one of the following: a touch circuit, a display panel, and a backlight module; And A driving component respectively connected to the touch module and the actuator, configured to drive the display panel to display an image, and output a driving signal to the actuator according to touch information of a touch body on the touch module, so that the actuator drives the touch module to vibrate in response to the driving signal to form haptic feedback on the touch surface, wherein the touch information includes at least one of the following: touch position, touch time, and touch action.