Tactile enhancement device and wearable device
By designing a flexible and deformable tactile enhancement device, the problem of existing devices being unable to achieve virtual perception enhancement is solved, providing thin and breathable tactile feedback that is suitable for long-term wear and enhances the virtual tactile experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-07
AI Technical Summary
Existing feedback devices are difficult to achieve virtual perception enhancement based on real-world scenarios, and long-term wear can be inconvenient and affect normal activity perception.
Design a tactile enhancement device comprising a flexible deformable substrate, an encapsulation layer, and a conductive layer. By constructing perforations in the substrate to expose the conductive layer, and combining an adhesive layer and an encapsulation layer, flexible deformation and non-invasive adhesion to the human body surface are achieved to provide tactile feedback.
It achieves a thin, breathable, and imperceptible tactile feedback, making it suitable for long-term wear, reducing the impact on normal activities and perception, and enhancing the virtual tactile experience.
Smart Images
Figure CN224096194U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to human-computer interaction, wearable equipment technical field, especially touch enhanced device and wear equipment. BACKGROUND
[0002] With the rapid development of virtual reality and augmented reality technology, virtual perception feedback technology is gradually widely used in remote surgery, intelligent manufacturing, medical training, game entertainment and other fields, and becomes an important human-computer interaction technology. The existing feedback device is mainly based on rigid feedback device such as touchpad, handle, joystick, etc., which is difficult to realize more immersive experience, and the touch feedback in augmented reality technology is mostly based on heavy gloves or exoskeleton, which brings inconvenience to long-term wearing and using, and also affects the normal activities and perception of the wearer, and it is difficult to realize virtual perception enhancement based on real scene. SUMMARY
[0003] Therefore, it is necessary to provide a touch enhanced device and wear equipment for the technical problem that the feedback device in the prior art is difficult to realize virtual perception enhancement based on real scene.
[0004] A touch enhanced device, comprising:
[0005] a substrate layer, which is flexible and deformable, and a hollow hole penetrating through the thickness of the substrate layer is formed on the substrate layer;
[0006] a packaging layer, which is also flexible and deformable, and the packaging layer is spaced apart from the substrate layer;
[0007] an adhesive layer, which is arranged between the substrate layer and the packaging layer, and the opposite two surfaces of the adhesive layer are respectively bonded and connected with the substrate layer and the packaging layer;
[0008] a conductive layer, which is embedded in the adhesive layer, and at least part of the conductive layer is arranged in the hollow hole and can contact the human skin.
[0009] In one embodiment, the adhesive layer has a first surface and a second surface, the first surface faces the substrate layer, and the second surface faces the packaging layer.
[0010] The first surface is provided with a mounting cavity with one end open and matched with the conductive layer, and the conductive layer is embedded in the mounting cavity.
[0011] In one embodiment, the conductive layer includes a cathode electrode and an anode electrode, the cathode electrode and the anode electrode are spaced apart, and the cathode electrode and the anode electrode are electrically connected with an external circuit.
[0012] In one of the embodiments, the haptic enhancement device further comprises:
[0013] An interface structure is arranged between the adhesive layer and the substrate layer, one end of the interface structure is electrically connected with the cathode electrode and the anode electrode, and the other end is electrically connected with the external circuit.
[0014] In one of the embodiments, a plurality of air permeable holes are arranged on the adhesive layer in a spaced manner, and the air permeable holes penetrate through the thickness direction of the adhesive layer.
[0015] In one of the embodiments, the material of the encapsulation layer is a fiber-based flexible material.
[0016] In one of the embodiments, the thickness D of the encapsulation layer satisfies the condition: 5 um≤D≤15 um.
[0017] In one of the embodiments, the material of the conductive layer is a liquid metal material.
[0018] In one of the embodiments, the substrate layer is configured as a polyurethane fiber mesh skeleton film.
[0019] A wearable device comprises the haptic enhancement device as described above.
[0020] The haptic enhancement device has the following beneficial effects:
[0021] The haptic enhancement device is provided, the substrate layer is used for bearing the conductive layer, the adhesive layer and the encapsulation layer, a hollow hole penetrating through the thickness of the substrate layer is constructed on the substrate layer, so that part of the conductive layer is exposed from the hollow hole, so that when a person wears the wearable device, the conductive layer can be in contact with the human skin. The encapsulation layer is used for encapsulating the conductive layer, so as to protect the conductive layer and make the appearance of the haptic enhancement device more beautiful. The adhesive layer is used for connecting the substrate layer and the encapsulation layer together, and is used for fixing the conductive layer and the substrate layer. By setting the substrate layer and the encapsulation layer into a flexible deformation form, the whole haptic enhancement device can be deformed flexibly, so that the haptic enhancement device can be attached to the human body surface without induction, so as to provide haptic feedback, and virtual haptic enhancement can be realized. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 An exploded structural view of the haptic enhancement device provided by one embodiment of the utility model is provided.
[0023] Figure 2 A three-dimensional structural schematic view of the haptic enhancement device provided by one embodiment of the utility model is provided.
[0024] Figure 3The top view of the adhesive layer in the haptic enhancement device provided by the embodiment of the present application.
[0025] Figure 4 The top view of the substrate layer in the haptic enhancement device provided by the embodiment of the present application.
[0026] Reference signs:
[0027] 100, substrate layer; 110, hollow hole; 200, packaging layer; 300, adhesive layer; 310, mounting cavity; 400, conductive layer. DETAILED DESCRIPTION
[0028] In order to make the above objectives, characteristics and advantages of the present application more apparent, concrete embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to provide a comprehensive understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0030] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.
[0031] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "fix", and the like terms should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element's interaction, unless another definite limitation.For ordinary skilled person in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.
[0032] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "fix", and the like terms should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element's interaction, unless another definite limitation.For ordinary skilled person in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.
[0033] It should be noted that when an element is referred to as "fixed to" or "set to" another element, it can be directly on another element or there can be a middle element.When an element is referred to as "connected to" another element, it can be directly connected to another element or there can be a middle element.The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.
[0034] Referring to Figures 1 to 4 The utility model provides a kind of haptic enhancement device, and haptic enhancement device includes substrate layer 100, encapsulation layer 200, adhesive layer 300 and conductive layer 400, substrate layer 100 can be flexible deformation, substrate layer 100 is structured with hollow hole 110 through along the thickness of substrate layer 100;Encapsulation layer 200 also can be flexible deformation, encapsulation layer 200 is spaced apart from substrate layer 100;Adhesive layer 300 is located between substrate layer 100 and encapsulation layer 200, and the opposite two faces of adhesive layer 300 are respectively connected with substrate layer 100 and encapsulation layer 200 bonding;Conductive layer 400 is embedded in adhesive layer 300, and at least part of conductive layer 400 is located in hollow hole 110 and can be contacted with human skin.
[0035] The utility model provides a kind of tactile enhancement device, substrate layer 100 is used to carry electrically-conductive layer 400, adhesive layer 300 and encapsulation layer 200, it is through constructing openwork hole 110 along the thickness of substrate layer 100 on substrate layer 100, to facilitate the part of electrically-conductive layer 400 is exposed from openwork hole 110, to make when person wears wearable equipment, electrically-conductive layer 400 can be contacted with human skin.Encapsulation layer 200 is used to encapsulate electrically-conductive layer 400, to protect electrically-conductive layer 400 while, make the appearance of tactile enhancement device more beautiful.Adhesive layer 300 is used to connect substrate layer 100 and encapsulation layer 200 together, and is used to fix electrically-conductive layer 400 with substrate layer 100.By substrate layer 100 and encapsulation layer 200 are set to flexible deformation form, so that the whole tactile enhancement piece can be flexible deformation, so that tactile enhancement piece can be attached to human surface inductively, to provide tactile feedback, and then virtual tactile enhancement can be realized.
[0036] The specific structure of substrate layer 100, encapsulation layer 200 and adhesive layer 300 is not limited, and can be set according to actual application scene.In the embodiment, the square block structure of substrate layer 100, encapsulation layer 200 and adhesive layer 300 is described as an example.
[0037] As shown in the figure, Figures 1 to 4 In one embodiment, the adhesive layer 300 has a first surface and a second surface, the first surface faces the substrate layer 100, and the second surface faces the encapsulation layer 200; the first surface is constructed with a mounting cavity 310 with one end open matched with the electrically-conductive layer 400, and the electrically-conductive layer 400 is embedded in the mounting cavity 310.
[0038] In the embodiment, the first surface of the adhesive layer 300 is bonded to the substrate layer 100, and the second surface of the adhesive layer 300 is bonded to the encapsulation layer 200. By constructing the mounting cavity 310 with one end open matched with the electrically-conductive layer 400 on the first surface, the electrically-conductive layer 400 can be embedded in the mounting cavity 310 and fixed with the adhesive layer 300. It can be understood that, except for the part corresponding to the openwork hole 110 on the substrate layer 100, the other parts of the electrically-conductive layer 400 are flush with the first surface of the adhesive layer 300, so that when the adhesive layer 300 is bonded to the substrate layer 100, the electrically-conductive layer 400 is just fitted with the substrate layer 100, thereby ensuring the reliability of the bonding between the substrate layer 100 and the adhesive layer 300. In another embodiment, except for the part corresponding to the openwork hole 110 on the substrate layer 100, the other parts of the electrically-conductive layer 400 are lower than the first surface of the adhesive layer 300. In this way, when the adhesive layer 300 is bonded to the substrate layer 100, the electrically-conductive layer 400 will not be in contact with the substrate layer 100 except for the part corresponding to the openwork hole 110, so that the first surface can be better fitted with the substrate layer 100, thereby ensuring the reliability of the bonding between the adhesive layer 300 and the substrate layer 100.
[0039] like Figures 1 to 4 As shown, in one embodiment, the conductive layer 400 includes a cathode electrode and an anode electrode, which are spaced apart and both are electrically connected to an external circuit. By configuring the conductive layer 400 to include a cathode electrode and an anode electrode, and electrically connecting both the cathode electrode and the anode electrode to an external circuit, a closed circuit is formed.
[0040] Specifically, the conductive layer 400 is made of liquid metal. Liquid metal is known for its amorphous and highly conductive properties; it can deform freely within a certain temperature range and regain its hardness after compaction. The use of liquid metal in the conductive layer 400 of the haptic enhancement device leverages its amorphous characteristics, resulting in greater comfort and less pain when the wearable device is worn, and also enhancing the virtual sensory performance of the haptic enhancement device. Specifically, the conductive layer 400 can be made of gallium-indium alloy.
[0041] Furthermore, one end of the cathode electrode and the anode electrode is thicker, and this part is housed in the perforation 110 and exposes the side of the substrate layer 100 away from the adhesive layer 300, so that the exposed conductive layer 400 can come into contact with the skin.
[0042] In one embodiment, the tactile enhancement device further includes an interface structure disposed between the adhesive layer 300 and the substrate layer 100. One end of the interface structure is electrically connected to both the cathode electrode and the anode electrode, and the other end is electrically connected to an external circuit.
[0043] An interface structure is provided between the adhesive layer 300 and the substrate layer 100, so that the interface structure is bonded to the substrate layer 100 via the adhesive layer 300. By electrically connecting the interface structure to the cathode and anode electrodes and to an external circuit, the cathode and anode electrodes are electrically connected to the external circuit. When the wearable device is worn, the cathode and anode electrodes contact the human skin to form a closed circuit. Pulse width modulation technology is used to drive the corresponding components to provide feedback, thereby simulating tactile sensation.
[0044] In one embodiment, the adhesive layer 300 is provided with a plurality of spaced apart air permeable holes that extend through the thickness of the adhesive layer 300. By providing the adhesive layer 300 with a plurality of air permeable holes, the air permeability of the haptic enhancement device is improved. Specifically, the adhesive layer 300 is made of acrylic, and is prepared as an acrylic film with a thickness of less than 50 um using a screen printing technique or a spin coating technique; and then the air permeable holes are formed in the acrylic film using a salting-out method or a sugar dissolution method, so that the adhesive layer 300 has air permeability. Preferably, the thickness of the acrylic film forming the adhesive layer 300 is between 25 um and 100 um, and more preferably, the thickness of the film is 50 um.
[0045] In one embodiment, the encapsulation layer 200 is made of a fiber-based flexible material. Specifically, the encapsulation layer 200 is made of a polyurethane fiber mesh skeleton film prepared using an electrospinning technique, and the polyurethane fiber mesh skeleton film has the characteristics of flexibility, stretchability, and lightness. Specifically, the thickness D of the encapsulation layer 200 satisfies the condition: 5 um≤D≤15 um. By setting the thickness of the encapsulation layer 200 to be between 5 um and 15 um, the encapsulation layer 200 can ensure the characteristics of lightness, inductance, and air permeability.
[0046] In one embodiment, the substrate layer 100 is configured as a polyurethane fiber mesh skeleton film. Specifically, the substrate layer 100 is made of a polyurethane fiber mesh skeleton film prepared using an electrospinning technique and an acrylic coating. Preferably, the thickness of the polyurethane fiber mesh skeleton film forming the substrate layer 100 is between 5 um and 15 um.
[0047] In this application, the use of low-modulus polymer materials and fiber-based mesh structures for both the encapsulation layer 200 and the substrate layer 100 can enable the haptic enhancement device to form a good conformal contact with the skin while providing sufficient air permeability, achieving a comfortable and long-term wearable device. The use of a porous structure instead of a fiber-based mesh structure for the adhesive layer 300 can provide more sufficient adhesion and embed the conductive layer 400 therein, so that when the device is removed, the conductive layer 400 can be removed from the skin along with the adhesive layer 300, thereby avoiding the conductive layer 400 remaining on the skin surface through the fiber-based substrate layer 100.
[0048] The wearable device comprises the haptic enhancement device as above. The haptic enhancement device as above is used on the wearable device, which is light and thin in structure, easy to achieve long-term conformal contact with the skin, and has the function of air permeability, improves the wearing experience of the wearer, is suitable for long-term wearing, and reduces the influence on the normal activities and perception of the wearer. The wearable device provided by the embodiment can be a smart watch, smart glasses, a smart watch, etc. When the haptic enhancement device is applied to smart glasses, not only can the wearer be provided with virtual vision, but also the user can be provided with virtual tactile experience through the haptic enhancement device. The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.
[0049] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, on the premise of not departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A tactile enhancement device, characterized in that, The tactile enhancement device includes: A substrate layer, the substrate layer being flexibly deformable, and the substrate layer having perforated holes extending along the thickness of the substrate layer; The encapsulation layer is also flexible and deformable, and the encapsulation layer is spaced apart from the substrate layer; An adhesive layer is disposed between the substrate layer and the encapsulation layer, and two opposite sides of the adhesive layer are respectively bonded to the substrate layer and the encapsulation layer; A conductive layer is embedded in the adhesive layer, and at least a portion of the conductive layer is disposed in the perforated hole and can come into contact with human skin.
2. The tactile enhancement device according to claim 1, characterized in that, The adhesive layer has a first side and a second side, the first side facing the substrate layer and the second side facing the encapsulation layer; The first surface has a mounting cavity with one end open to match the conductive layer, and the conductive layer is embedded in the mounting cavity.
3. The tactile enhancement device according to claim 1, characterized in that, The conductive layer includes a cathode electrode and an anode electrode, which are spaced apart and are electrically connected to an external circuit.
4. The tactile enhancement device according to claim 3, characterized in that, The tactile enhancement device also includes: An interface structure is provided between the adhesive layer and the substrate layer. One end of the interface structure is electrically connected to both the cathode electrode and the anode electrode, and the other end is electrically connected to the external circuit.
5. The tactile enhancement device according to claim 1, characterized in that, The adhesive layer has a plurality of spaced vent holes, which are through the thickness of the adhesive layer.
6. The tactile enhancement device according to claim 1, characterized in that, The encapsulation layer is made of fiber-based flexible material.
7. The tactile enhancement device according to claim 6, characterized in that, The thickness D of the encapsulation layer satisfies the condition: 5 μm ≤ D ≤ 15 μm.
8. The tactile enhancement device according to claim 1, characterized in that, The conductive layer is made of liquid metal.
9. The tactile enhancement device according to any one of claims 1-8, characterized in that, The substrate layer is configured as a polyurethane fiber mesh skeleton membrane.
10. A wearable device, characterized in that, The wearable device includes a haptic enhancement device as described in any one of claims 1-9.