Skeleton-type continuity-enhanced tactile display interface

WO2025184958A8PCT designated stage Publication Date: 2025-10-02TSINGHUA UNIVERSITY
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Patent Information

Application Number
PCT/CN2024/086593
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-06
Filing Date
2024-04-08
Publication Date
2025-10-02

AI Technical Summary

Technical Problem

When existing touch-sensitive pressure display devices display continuous contact actions, tactile information between pixels is lost, resulting in display distortion, and increasing pixel density will lead to complex structure and increased cost.

Method used

A skeleton-type continuity-enhanced tactile display interface is adopted. Through the combination of continuous beams and compression parts, the bending deformation of the beams is used to produce tactile sensations. The moving parts and constraint parts are controlled by the driver to achieve continuous compensation of tactile information without increasing pixel density.

Benefits of technology

It effectively enhances the continuity of tactile display, simplifies the structure, reduces costs, protects the human body through the natural continuity of the beam, and improves the safety of use and display effect.

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Abstract

The present application relates to the field of tactile display. Provided is a skeleton-type continuity-enhanced tactile display interface, comprising a base body and a beam element, wherein the beam element comprises a continuous beam configured to act on a user's skin; a pair of pressing members, which are arranged at two ends of the continuous beam, wherein the pressing members are connected to the continuous beam and are configured to press the ends of the continuous beam against the base body, and the pair of pressing members can move towards or away from each other in the direction of length of the continuous beam, so as to drive the continuous beam to undergo buckling deformation; and first drivers, which are configured to drive the pair of pressing members to move. With such an arrangement, on the basis of the interpolation characteristic of the continuous beam under the action of a point displacement load and the continuous movement of the continuous beam during buckling deformation, by means of using a continuous beam skeleton as a main output member, continuous tactile sensations can be generated on human skin, such that interpolation compensation can be performed on tactile information lost between different pixel points, without the need to increase the pixel density, thereby effectively enhancing the continuity of tactile display information. Therefore, the structure is simple and the cost is relatively low.
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Description

Skeleton-type continuity-enhanced tactile display interface

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202410256252.4, filed on March 6, 2024, entitled “Skeleton-type continuity enhanced tactile display interface,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the field of tactile display technology, and in particular to a skeleton-type continuity-enhanced tactile display interface. Background Art

[0004] In recent years, virtual reality technology has attracted increasing attention. Tactile display has important value in virtual reality, independent of vision, and is an important component of deep immersive experience.

[0005] Haptic displays are generally divided into motion displays and touch displays. Motion displays primarily generate acceleration and force feedback on human joints. Tactile displays are primarily responsible for displaying pressure, lateral forces parallel to the skin surface, and vibration on the human skin surface.

[0006] Existing touch-sensitive pressure display devices typically generate tactile pressure by independently raising and lowering multiple pixels. However, when displaying continuous contact actions, such as stroking and exploring an object, tactile information between pixels is lost, affecting the continuity of contact movement and causing display distortion. To address display distortion, pixel density is usually increased, but this leads to complex structures and increased device costs.

[0007] Therefore, providing a new type of continuity-enhanced tactile display interface has become an important technical issue that needs to be urgently solved by those skilled in the art.

[0008] Summary of the Invention

[0009] The purpose of this application is to provide a skeleton-type continuity-enhanced tactile display interface to address the defects and shortcomings in the prior art.

[0010] To achieve the above objectives, the present application provides a skeleton-type continuity-enhanced tactile display interface, comprising:

[0011] matrix;

[0012] A beam unit is provided on the base, and the beam unit comprises:

[0013] a continuous beam, disposed on the base, the continuous beam being configured to act on the user's skin;

[0014] a pair of pressing members, respectively provided at both ends of the continuous beam, the pressing members being connected to the continuous beam and used to press the ends of the continuous beam against the base, at least one of the pressing members being slidably connected to the base, and the pair of pressing members being able to move toward or away from each other along the length direction of the continuous beam to drive the continuous beam to produce buckling deformation;

[0015] The first driver is used to drive the pair of pressing members to move.

[0016] The skeleton-type continuity-enhanced tactile display interface provided by the present application further includes:

[0017] A plurality of moving members are spaced apart along the length direction of the continuous beam, the base body is provided with a plurality of through holes adapted to the respective moving members, the moving members pass through the through holes and abut against the continuous beam, the moving members are slidably connected to the base body, and the moving members move along the thickness direction of the continuous beam;

[0018] a plurality of first restraining members, arranged at positions where the respective moving members contact the continuous beam, the first restraining members being used to prevent the moving members from separating from the continuous beam, and the continuous beam being slidably connected to the first restraining members;

[0019] A second driver, used for driving each of the moving parts to move;

[0020] A support base is connected to the base, and the support base is provided with an accommodating space for accommodating the second driver and each of the moving parts.

[0021] According to the skeleton-type continuity-enhanced tactile display interface provided by the present application, the number of the beam units is multiple, wherein the continuous beams are cross-arranged to form a first beam grid structure, the first beam grid structure has multiple first intersections, and the positions of the first intersections correspond to the positions of the moving parts and the first restraining parts.

[0022] According to the skeleton-type continuity-enhanced tactile display interface provided by the present application, at the position of the first intersection, at least two of the continuous beams are intersecting, and the number of the first restraining members is at least one.

[0023] According to the skeleton-type continuity-enhanced tactile display interface provided by the present application, the base and the support seat are correspondingly configured as arc-shaped structures.

[0024] According to the skeleton-type continuity-enhanced tactile display interface provided by the present application, the number of the beam units is multiple, wherein the continuous beams are arranged crosswise to form a second beam grid structure, the second beam grid structure has multiple second intersections, and second constraints are provided at the positions of the second intersections. The second constraints are used to prevent the cross-arranged continuous beams from separating from each other, and the continuous beam is slidably connected to the second constraints.

[0025] According to the skeleton-type continuity-enhanced tactile display interface provided by the present application, at the position of the second intersection, at least two of the continuous beams are intersecting, and the number of the second restraining members is at least one.

[0026] According to the skeleton-type continuity-enhanced tactile display interface provided by the present application, the base is configured as a ring-shaped base, and the skeleton-type continuity-enhanced tactile display interface further includes:

[0027] The support member is arranged in the hollow position of the annular base, and the support member is located below each of the continuous beams.

[0028] According to the skeleton-type continuity-enhanced tactile display interface provided by the present application, the support member is configured as a support plate or a support net.

[0029] According to the skeleton-type continuity-enhanced tactile display interface provided by the present application, the substrate includes:

[0030] A first annular base and a second annular base are arranged at intervals, and one end of each continuous beam is arranged on the first annular base, and the other end is arranged on the second annular base.

[0031] The present application provides a skeleton-type continuous enhanced tactile display interface, comprising: a substrate; a beam unit disposed on the substrate, the beam unit comprising: a continuous beam disposed on the substrate, the continuous beam being configured to act on a user's skin; a pair of pressing members disposed at either end of the continuous beam, the pressing members being connected to the continuous beam and configured to press the ends of the continuous beam against the substrate, at least one pressing member being slidably connected to the substrate, the pair of pressing members being capable of moving toward or away from each other along the length of the continuous beam to cause the continuous beam to buckle; and a first driver being configured to drive the pair of pressing members to move. Such a configuration, based on the interpolation characteristics of the continuous beam under point displacement loads and the continuous movement during buckling, can generate a continuous tactile sensation on human skin by using the continuous beam skeleton as the main output component, thereby interpolating and compensating for tactile information lost between different pixels, expanding the tactile display area from independent pixels to the lines connecting these pixels without increasing pixel density, effectively enhancing the continuity of tactile display information, and having a simple structure and relatively low cost. In addition, the natural continuity of the continuous beam skeleton can also ensure that there are no sharp edges when it is protruding, which plays a role in protecting the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] FIG1 is a structural schematic diagram of a skeleton-type continuous enhanced tactile display interface according to a first embodiment of the present application;

[0034] Figure 2 is a front view of Figure 1;

[0035] FIG3 is a second structural diagram of the skeleton-type continuous enhanced tactile display interface according to the first embodiment of the present application;

[0036] FIG4 is a front view of FIG3;

[0037] FIG5 is a third structural diagram of the skeleton-type continuous enhanced tactile display interface according to the first embodiment of the present application;

[0038] Figure 6 is a front view of Figure 5;

[0039] FIG7 is a schematic structural diagram of a skeleton-type continuous enhanced tactile display interface according to a second embodiment of the present application;

[0040] FIG8 is a front view of FIG7;

[0041] FIG9 is a partial schematic diagram of the first intersection provided by the present application;

[0042] FIG10 is a schematic structural diagram of a skeleton-type continuous enhanced tactile display interface according to a third embodiment of the present application;

[0043] FIG11 is a schematic diagram of the structure of a skeleton-type continuous enhanced tactile display interface according to a fourth embodiment of the present application;

[0044] FIG12 is a second structural diagram of a skeleton-type continuous enhanced tactile display interface according to the fourth embodiment of the present application;

[0045] FIG13 is a third structural diagram of a skeleton-type continuous enhanced tactile display interface according to the fourth embodiment of the present application;

[0046] FIG14 is a front view of a skeleton-type continuous enhanced tactile display interface according to a fourth embodiment of the present application;

[0047] FIG15 is a schematic structural diagram of a skeleton-type continuous enhanced tactile display interface according to a fifth embodiment of the present application;

[0048] FIG16 is a front view of a skeleton-type continuous enhanced tactile display interface according to a fifth embodiment of the present application;

[0049] Figure numerals: 1: base; 101: first annular base; 102: second annular base; 2: continuous beam; 3: pressing member; 4: first driver; 5: moving member; 6: through hole; 7: first restraining member; 8: second driver; 9: support seat; 10: first intersection; 11: second intersection; 12: support member; 13: slide groove. DETAILED DESCRIPTION

[0050] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0051] The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention. Where specific techniques or conditions are not specified in the examples, the techniques or conditions described in the literature in the art or the product instructions shall be followed.

[0052] In this application, the instruments used, etc., which do not indicate the manufacturer, are all conventional products that can be purchased through regular channels. The raw materials used in this application can all be processed and purchased in the market.

[0053] The skeleton-type continuous enhanced tactile display interface of the present application is described below with reference to FIG. 1 to FIG. 16 .

[0054] As shown in Figures 1 to 16, an embodiment of the present application provides a skeleton-type continuous enhanced tactile display interface, comprising a base 1 and a beam unit, wherein the beam unit is disposed on the base 1. The beam unit includes a continuous beam 2, a pair of pressing members 3, and a first driver 4. Specifically, the continuous beam 2 is disposed on the base 1 and is configured to act directly or indirectly on the user's skin, thereby contacting and pressing the human skin through the continuous beam skeleton as the main output component for generating tactile sensations, thereby improving the tactile display effect through the deformation characteristics of the continuous beam 2.

[0055] A pair of clamping members 3 are respectively provided at both ends of the continuous beam 2. The clamping members 3 are connected to the continuous beam 2, for example, by means of set bolts. The clamping members 3 are used to press the ends of the continuous beam 2 against the base 1 to prevent the ends of the continuous beam 2 from separating from the base 1 and to limit the out-of-plane displacement of the ends of the beam. Furthermore, at least one of the clamping members 3 is slidably connected to the base 1 and is capable of moving toward or away from each other along the length of the continuous beam 2 to cause the continuous beam 2 to produce buckling deformation. For example, as shown in FIG1 , the pair of clamping members 3 are both slidably connected to the base 1. A chute 13 is provided on the base 1, and the chute 13 is provided along the length of the continuous beam 2. The clamping members 3 are slidably disposed in the chute 13, thereby enabling the pair of clamping members 3 to move toward or away from each other. Alternatively, one of the clamping members 3 is slidably disposed on the base 1, while the other is fixedly disposed on the base 1. In this way, the relative sliding of the compression member 3 along the length direction can compress the continuous beam 2, causing it to buckle and deform, thereby changing the cross-sectional shape of the continuous beam 2. This in turn can produce pressure on the user's skin to form a tactile display. It will be understood that the amount of compression of the continuous beam 2 needs to be determined according to actual design requirements.

[0056] The first driver 4 is used to drive the movement of a pair of clamping members 3. For example, the first driver 4 can be a linear motor, which is connected to the clamping member 3 to drive the clamping member 3 to perform reciprocating linear motion along the length direction of the continuous beam 2, thereby compressing the continuous beam 2 and causing the beam to bend and deform. For example, a pair of clamping members 3 are both slidingly arranged, and the two can be independently controlled and driven by their respective corresponding linear motors. Of course, in other embodiments, the first driver 4 is not limited to the above-mentioned linear motors, and other linear drive mechanisms such as hydraulic cylinders and electric cylinders can also be used, or the clamping member 3 can be driven to perform linear motion by a circular drive mechanism through a transmission mechanism. It should be noted that, with respect to the placement of the skeleton-type continuity enhanced tactile display interface as shown in Figure 1, the direction indicated by the solid arrow in the figure is the length direction of the continuous beam 2.

[0057] This setup, based on the interpolation properties of the beam under point displacement loads and its continuous motion during buckling deformation, uses the continuous beam as the primary output component to form a skeleton-type continuity-enhanced tactile interface. This interface produces a continuous tactile sensation on the human skin surface, interpolating and compensating for tactile information lost between pixels. This extends the tactile display area from individual pixels to the lines connecting these pixels without increasing pixel density, effectively enhancing the continuity of tactile display information. This design is simple in structure and relatively low in cost. Furthermore, the natural continuity of the beam skeleton ensures that protrusions are free of sharp edges, protecting the human body and improving user safety.

[0058] In an optional embodiment of the present application, the material of the continuous beam 2 is metal. Specifically, the material of the beam can be stainless steel, for example, 301 stainless steel. This ensures that the continuous beam 2 has a certain strength and toughness to meet its use requirements and can also increase the service life of the tactile display interface. In addition, in actual application, a thin stainless steel beam can be used, for example, its thickness does not exceed 1 mm. In this way, it can be ensured that the continuous beam 2 will not collapse when it is compressed and deformed and comes into contact with the human body, and at the same time, the length of the continuous beam 2 will not change significantly due to axial compression. It is understandable that the thickness of the continuous beam 2 needs to be specifically determined according to actual design requirements. It should be noted that, with respect to the placement position of the skeleton-type continuity-enhanced tactile display interface shown in Figure 1, the direction indicated by the hollow arrow in the figure is the thickness direction of the continuous beam 2. Of course, in other embodiments, the material of the continuous beam 2 is not limited to metal, and other thin materials with high strength and toughness can also be selected.

[0059] In the first embodiment of the present application, as shown in Figure 1, the skeleton type continuity enhanced tactile display interface includes a base 1 and a beam unit, and also includes a plurality of moving parts 5, a plurality of first constraints 7, a second driver 8 and a support base 9. Specifically, as shown in Figure 1, the moving parts 5 are spaced apart along the length direction of the continuous beam 2. The base 1 is provided with a plurality of through holes 6 that are compatible with the moving parts 5, and the moving parts 5 pass through the through holes 6 and abut against the continuous beam 2. The moving parts 5 are slidably connected to the base 1, and the moving parts 5 move along the thickness direction of the continuous beam 2. Like this, as shown in Figures 1 to 6, by controlling the longitudinal displacement of each moving part 5, the continuous beam 2 is made to present different shape changes according to actual design requirements, simulating the tactile sense of the user touching an object in the scene.

[0060] Each first restraining member 7 is positioned at the point where the movable member 5 contacts the continuous beam 2. The first restraining member 7 prevents the continuous beam 2 from separating from the movable member 5, and the continuous beam 2 is slidably connected to the first restraining member 7. In other words, the first restraining member 7 limits the longitudinal displacement of the continuous beam 2 relative to the movable member 5, allowing the two to rise and fall synchronously at this contact point while allowing the continuous beam 2 to move along its length. This provides reliable feedback on pixel displacement and satisfies the need for changes in the axial cross-sectional shape of the continuous beam 2.

[0061] The second driver 8 is used to drive each moving member 5 to move, so that the displacement of each moving member 5 can be controlled by the second driver 8 to meet the displacement change requirements of different pixel points. Specifically, the second driver 8 can be multiple, and each second driver 8 is set in a one-to-one correspondence with each moving member 5, so as to facilitate the control of each moving member 5. The second driver 8 can optionally use a servo motor, which is connected to the moving member 5 in a transmission manner, for example, by a gear transmission, a screw transmission, etc., to convert the rotational motion of the motor into a linear reciprocating motion of the moving member 5.

[0062] The support base 9 is connected to the base 1 and is provided with a space for accommodating the second driver 8 and each moving member 5, thereby providing installation space for the longitudinal displacement drive unit, meeting the displacement requirements of the moving member 5, and providing reliable support. It should be noted that, with respect to the placement of the skeleton-type continuous enhanced tactile display interface as shown in FIG1 , the direction indicated by the solid arrow in the figure is the axial direction, the length direction of the continuous beam 2, and the direction indicated by the hollow arrow in the figure is the longitudinal direction, the thickness direction of the continuous beam 2.

[0063] With this arrangement, a one-dimensional continuous enhanced tactile display interface is constructed, with the continuous beam 2 serving as the skeleton part that supports the human skin. The deformation characteristics of the continuous beam 2 are used to improve the tactile display, significantly enhancing the display effect during contact movement. The continuous beam 2 is compressed by the first driver 4 and the clamping member 3 at both ends of the beam, and the cross-sectional shape of the continuous beam 2 is controlled by the second driver 8 and the moving member 5 in the middle, fully ensuring its shape stability and reliably reproducing the tactile sensation of objects in the virtual scene. It should be noted that the structure of the support seat 9, etc. in the figure is not specifically limited here and is only used for demonstration. Its specific setting can be determined according to actual design requirements.

[0064] In the second embodiment of the present application, as shown in Figures 7 and 8, the one-dimensional interface in Example 1 is expanded to a two-dimensional interface. Specifically, the number of beam units is multiple, wherein each continuous beam 2 is arranged crosswise to form a first beam grid structure. As shown in Figure 7, the first beam grid structure has a plurality of first intersections 10, and the positions of the first intersections 10 are correspondingly provided with moving parts 5 and first restraining parts 7. Correspondingly, the support seat 9 is arranged below the base 1 to provide an installation space. In this way, a two-dimensional beam network structure is constructed, which can fit the deformation of the two-dimensional curved surface, thereby better producing a sense of touch on the user's skin.

[0065] In a specific embodiment of the present application, at the position of the first intersection 10, there are at least two continuous beams 2 intersecting and being arranged, and the quantity of the first binding member 7 is at least one.For example, as shown in Figure 7, at each first intersection 10 places, there are three continuous beams 2 overlapping each other.The quantity of the first binding member 7 can be three, and each first binding member 7 is cross-arranged successively, and the continuous beam 2 is constrained on the mobile member 5, improves reliability in use. The first binding member 7 can be selected from high-strength wire rods, as adopting conventional fishing line etc., to ensure that it is not easy to break, and does not affect the sense of touch and presents.As shown in Figure 9, the two ends of the first binding member 7 can be fixedly connected with the mobile member 5, so that the continuous beam 2 is constrained on the mobile member 5.

[0066] In the third embodiment of the present application, as shown in Figure 10, it is based on the plane form in the first embodiment and is expanded to a curved form. Specifically, the base 1 and the support seat 9 are correspondingly arranged as an arc structure. Since the surface of the human body is mostly curved, this arrangement makes the overall layout more reasonable and can fully fit the curve of the human body structure to adapt to the shape of the human body surface for tactile display. It should be noted that, with respect to the placement position of the skeleton-type continuity-enhanced tactile display interface as shown in Figure 10, the direction indicated by the solid arrow in the figure is the length direction of the continuous beam 2, and the direction indicated by the hollow arrow in the figure is the thickness direction of the continuous beam 2.

[0067] In the fourth embodiment of the present application, as shown in Figure 11, the difference from the second embodiment is that there is no longitudinal displacement drive unit below the base 1, that is, the second driver 8, the moving member 5 and the support seat 9 for controlling the lifting movement are not provided. Specifically, the number of beam units is multiple, wherein each continuous beam 2 is arranged crosswise, thereby forming a second beam grid structure. As shown in Figure 11, the second beam grid structure has a plurality of second intersections 11, and the positions of the second intersections 11 are provided with second constraints. The second constraint is used to prevent the cross-arranged continuous beams 2 from separating from each other, and the continuous beam 2 is slidably connected to the second constraint, thereby preventing the overlapping continuous beams 2 from separating from each other, and allowing each continuous beam 2 to be fine-tuned along its length direction to ensure the flexible deformation ability of the grid structure.

[0068] With this arrangement, as shown in Figure 14, the first drivers 4 and pressure members 3 at each end of each beam compress the continuous beam 2, causing it to bulge. The interplay between the different continuous beams 2 controls the position of the bulge within the grid structure, while maintaining the continuity enhancement effect. By eliminating the lower longitudinal displacement drive unit, the overall thickness of the tactile display is significantly reduced, significantly increasing the ratio of the bulge stroke to the display thickness when pressure is applied, achieving a stroke-to-thickness ratio far greater than 1. This allows the display to be worn on the human body, reducing the thickness of wearable devices with the same display requirements.

[0069] In a specific embodiment of the present application, at the position of the second intersection 11, there are at least two continuous beams 2 intersecting each other, and the number of second constraints is at least one. For example, as shown in Figure 11, at each second intersection 11, there are three continuous beams 2 overlapping each other. The number of second constraints can be three, and each second constraint is arranged crosswise in sequence to constrain the continuous beam 2 to the moving part 5. The second constraint can be made of high-strength wire to ensure that it is reliable in use and does not affect the tactile display. In addition, the second constraint can be set as an annular constraint belt, which is convenient for installation at the intersection, and reliably ensures that the overlapping beams will not detach from each other and synchronize longitudinal displacement at the intersection position.

[0070] As an optional embodiment of the present application, as shown in FIG11 , the base 1 is configured as an annular base, and both ends of each continuous beam 2 are connected to the annular base respectively. In addition, the annular base can be configured as a foldable structure to accommodate display installation requirements, etc. Furthermore, the skeleton-type continuity-enhanced tactile display interface also includes a support member 12, which is provided in a hollow position of the annular base, and the support member 12 is located below each continuous beam 2. With such a configuration, the support member 12 can improve the movement reliability of each continuous beam 2, so that each continuous beam 2 moves to the same side of the base 1, preventing reverse bending deformation, so as not to affect the tactile display.

[0071] In a specific embodiment of the present application, as shown in Figure 12 , the support member 12 is configured as a support plate. The support plate can be a thin plate that covers the hollow portion of the annular base to provide support and position limiting. Alternatively, as shown in Figure 13 , the support member 12 can be configured as a support mesh. The shape of the support mesh can be consistent with the shape of the beam grid, thereby reducing the weight of the display and effectively supporting and restraining each continuous beam 2.

[0072] In the fifth embodiment of the present application, as shown in Figure 15, the difference from the fourth embodiment is that the base 1 includes a first annular base 101 and a second annular base 102, each of which is arranged at intervals, and one end of each continuous beam 2 is arranged on the first annular base 101 and the other end is arranged on the second annular base 102. Specifically, the number of beam units is multiple, wherein the continuous beams 2 are arranged crosswise, thereby forming a second beam grid structure. As shown in Figure 16, the second beam grid structure has multiple second intersections 11, and second restraints are provided at the positions of the second intersections 11. The second restraints are used to prevent the crosswise continuous beams 2 from separating from each other, and the continuous beams 2 are slidably connected to the second restraints, thereby preventing the overlapping continuous beams 2 from separating from each other, limiting their protruding direction, and allowing each continuous beam 2 to be fine-tuned along its length. A clamping member 3 and a first driver 4 are provided at both ends of the continuous beam 2, respectively, and the clamping member 3 and the first driver 4 are correspondingly provided on the annular bases at both ends. This arrangement forms a cylindrical wearable device that can be put on the human body, for example, on the limbs and other parts of the human body, and is flexible to wear and easy to use. It is understandable that in this embodiment, a support net or support plate can also be added as in the fourth embodiment.

[0073] In summary, the embodiments of the present application provide a skeleton-type continuity-enhanced tactile display interface, which is suitable for virtual tactile interaction scenarios. By adding beam units to the contact interface and utilizing their interpolation characteristics, the longitudinal movement of scattered pixel points can be converted into pressure tactile sensations that continuously move along the skin surface without increasing the pixel density. The tactile display interface can be expanded from a one-dimensional structure to a two-dimensional structure and a curved surface form, and can form a network skeleton structure composed of multiple continuous beams overlapped with each other. The overlaps between the beams are connected by a constraint device that allows the beams to move in their length direction. The tactile display interface can be used in conjunction with other pixel-type tactile devices to create continuous motion on the tactile interaction surface, which can enhance the continuity of the displayed tactile information during motion, and complement the missing tactile information between pixels through the natural interpolation-like characteristics of the beams, thereby improving the mobile display effect on a flat or curved surface. This tactile display interface can also function independently as a tactile display mechanism, creating a continuous tactile sensation on the skin's surface. In this case, a longitudinal displacement drive unit is unnecessary. By relying on constraints between different beams and independently controlling the compression of each beam, the shape and position of the grid protrusions can be controlled. This allows it to be worn as a wearable device over the human body, significantly reducing the thickness of wearable devices with the same display requirements. Its simple structure, relatively low cost, and ease of miniaturization offer high structural strength and a long service life. It significantly reduces positional and shape distortion, effectively improving motion coherence between pixels. The inherent smooth bending deformation of the beams ensures safe interaction, improving the user's interactive experience in virtual reality, and holds great promise for future applications.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application 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. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A skeleton-type continuity-enhanced tactile display interface, comprising: Matrix (1); A beam unit is provided on the base (1), and the beam unit comprises: A continuous beam (2) is arranged on the base (1), and the continuous beam (2) is used to act on the skin of a user; A pair of pressing members (3) are respectively arranged at both ends of the continuous beam (2), the pressing members (3) are connected to the continuous beam (2), and the pressing members (3) are used to press the end of the continuous beam (2) onto the base (1). At least one of the pressing members (3) is slidably connected to the base (1), and the pair of pressing members (3) can move toward or away from each other along the length direction of the continuous beam (2) to drive the continuous beam (2) to produce buckling deformation; The first driver (4) is used for driving the pair of pressing members (3) to move.

2. The skeleton-type continuous enhanced tactile display interface according to claim 1, further comprising: A plurality of moving members (5) are spaced apart and distributed along the length direction of the continuous beam (2); the base (1) is provided with a plurality of through holes (6) adapted to the respective moving members (5); the moving members (5) pass through the through holes (6) and abut against the continuous beam (2); the moving members (5) are slidably connected to the base (1); and the moving members (5) move along the thickness direction of the continuous beam (2); A plurality of first restraining members (7) are arranged at positions where each of the moving members (5) contacts the continuous beam (2), the first restraining members (7) being used to prevent the moving member (5) from separating from the continuous beam (2), and the continuous beam (2) is slidably connected to the first restraining members (7); A second driver (8) for driving each of the moving members (5) to move; A support base (9) is connected to the base (1), and the support base (9) is provided with an accommodating space for accommodating the second driver (8) and each of the moving parts (5).

3. The skeleton-type continuous enhanced tactile display interface according to claim 2, wherein: There are multiple beam units, wherein the continuous beams (2) are arranged crosswise to form a first beam grid structure, the first beam grid structure has multiple first intersections (10), and the positions of the first intersections (10) are correspondingly provided with the moving parts (5) and the first restraining parts (7).

4. The skeleton-type continuous enhanced tactile display interface according to claim 3, wherein: At the position of the first intersection (10), at least two of the continuous beams (2) are arranged to intersect, and the number of the first restraining member (7) is at least one.

5. The skeleton-type continuous enhanced tactile display interface according to claim 2, wherein: The base (1) and the support seat (9) are correspondingly configured as arc-shaped structures.

6. The skeleton-type continuous enhanced tactile display interface according to claim 1, wherein: The number of the beam units is multiple, wherein the continuous beams (2) are arranged crosswise to form a second beam grid structure, the second beam grid structure has a plurality of second intersections (11), and second restraining members are provided at the positions of the second intersections (11), the second restraining members are used to prevent the crosswise continuous beams (2) from separating from each other, and the continuous beams (2) are slidably connected to the second restraining members.

7. The skeleton-type continuous enhanced tactile display interface according to claim 6, wherein: At the position of the second intersection (11), at least two of the continuous beams (2) are arranged to intersect, and the number of the second restraining member is at least one.

8. The skeleton-type continuous enhanced tactile display interface according to claim 6, wherein: The base (1) is configured as a ring-shaped base, and the skeleton-type continuity-enhanced tactile display interface further comprises: A support member (12) is arranged in a hollow position of the annular base, and the support member (12) is located below each of the continuous beams (2).

9. The skeleton-type continuous enhanced tactile display interface according to claim 8, wherein: The support member (12) is configured as a support plate or a support net.

10. The skeleton-type continuous enhanced tactile display interface according to claim 6, wherein: The substrate (1) comprises: A first annular base (101) and a second annular base (102) are arranged at intervals, and one end of each continuous beam (2) is arranged on the first annular base (101) and the other end is arranged on the second annular base (102).