Touch display module

Abstract

This application relates to the field of touch display technology and discloses a touch display module, comprising: a cover plate, the cover plate including a first surface and a second surface, the first surface and the second surface being disposed opposite to each other; a first capacitor layer, the first capacitor layer being disposed on the second surface, the first capacitor layer including a plurality of parallel first capacitor channels; a second capacitor layer, the second capacitor layer being disposed on the side of the first capacitor layer away from the cover plate, the second capacitor layer including a plurality of parallel second capacitor channels, the orthographic projection of the second capacitor channels on the cover plate and the orthographic projection of the first capacitor channels on the cover plate being perpendicular to each other; an adhesive layer, the adhesive layer being disposed on the side of the second capacitor layer away from the cover plate; and a display panel, the display panel being disposed on the side of the adhesive layer away from the cover plate. This touch display module reduces thickness, reduces multiple bonding processes, simplifies the manufacturing process, improves production efficiency, and reduces costs.

Description

Technical Field

[0001] This application relates to the field of touch display technology, and in particular to a touch display module. Background Technology

[0002] Touchscreens, as devices that integrate display and positioning input, allow users to directly control content on the screen through touch, swipes, and gestures, making them one of the most intuitive and convenient human-computer interaction methods currently available. With the continuous advancement of display technology, higher demands are being placed on the performance of touchscreens. While maintaining their basic functions, stricter limits are being placed on their thickness and manufacturing costs to adapt to the increasingly thinner and lighter development trend of flexible display devices.

[0003] In existing technologies, common touch display modules typically include a multi-layered structure consisting of a cover plate, adhesive, capacitor layer, PET substrate, adhesive, capacitor layer, PET substrate, adhesive, and display panel. This type of module has a complex structure, significant thickness, and requires cumbersome bonding processes during manufacturing, resulting in high overall costs and making it difficult to meet the demands of next-generation thinner and lighter display devices. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a touch display module.

[0005] This utility model provides a touch display module, including:

[0006] A cover plate, the cover plate including a first surface and a second surface, the first surface and the second surface being disposed opposite to each other;

[0007] A first capacitor layer is disposed on the second surface, and the first capacitor layer includes a plurality of parallel first capacitor channels.

[0008] The second capacitor layer is disposed on the side of the first capacitor layer away from the cover plate. The second capacitor layer includes multiple parallel second capacitor channels. The orthographic projections of the second capacitor channels on the cover plate and the orthographic projections of the first capacitor channels on the cover plate are perpendicular to each other.

[0009] An adhesive layer is disposed on the side of the second capacitor layer away from the cover plate;

[0010] The display panel is located on the side of the adhesive layer away from the cover plate.

[0011] In one embodiment, the first capacitor channel includes a plurality of interconnected first receiving slots and a first conductive structure formed by conductive material filled in the first receiving slots, and the second capacitor channel includes a plurality of interconnected second receiving slots and a second conductive structure formed by conductive material filled in the second receiving slots.

[0012] In one embodiment, a plurality of first receiving slots form a plurality of adjacent regular polygonal structures, and / or a plurality of second receiving slots form a plurality of adjacent regular polygonal structures.

[0013] In one embodiment, a plurality of first receiving slots form a plurality of adjacent irregular random polygonal structures, and / or a plurality of second receiving slots form a plurality of adjacent irregular random polygonal structures.

[0014] In one embodiment, the vertices of the plurality of random polygonal structures have random correspondences with the vertices of the plurality of regular polygonal structures arranged in an array. The random correspondences are as follows: the side length of the regular polygonal structure is L, the regular polygonal structure has a plurality of first vertices, the random polygonal structure has a plurality of second vertices, and the plurality of second vertices do not overlap. The plurality of first vertices correspond one-to-one with the plurality of second vertices. The distance between each first vertex and the corresponding second vertex is H, and H satisfies: 0 < H ≤ K * L, where K is a random factor and satisfies: 1.25 ≤ K ≤ 1.3.

[0015] In one embodiment, the width of the first receiving groove is 2μm to 15μm, the depth of the first receiving groove is 2μm to 12μm, the width of the second receiving groove is 2μm to 15μm, and the depth of the second receiving groove is 2μm to 12μm.

[0016] In one embodiment, the touch display module further includes a functional layer disposed on the first surface.

[0017] In one embodiment, the functional layer includes at least one of an anti-glare layer, an anti-fingerprint layer, and an anti-reflective anti-reflective layer.

[0018] In one embodiment, the touch display module further includes a first electromagnetic layer and a second electromagnetic layer, wherein the first electromagnetic layer and the second electromagnetic layer are stacked between the cover plate and the first capacitor layer, or the first electromagnetic layer and the second electromagnetic layer are stacked between the second capacitor layer and the adhesive layer.

[0019] In one embodiment, the first electromagnetic layer includes a plurality of parallel first electromagnetic channels, and the second electromagnetic layer includes a plurality of parallel second electromagnetic channels. The orthographic projections of the first electromagnetic channels on the cover plate and the orthographic projections of the second electromagnetic channels on the cover plate are perpendicular to each other.

[0020] The advantages of this invention are as follows: The touch display module of this application has a simple and thin structure, eliminating the need for two layers of adhesive and two layers of substrate, thereby reducing the overall thickness, reducing the number of bonding processes, simplifying the manufacturing process, improving production efficiency, and reducing costs. The electromagnetic layer and the capacitor layer can be combined, enabling the display module to simultaneously have touch and electromagnetic pen writing functions, solving the problem that traditional methods require two screens, a capacitive screen and an electromagnetic screen, to achieve this function. Furthermore, by setting the graphic structure formed by multiple accommodating slots in the capacitor / electromagnetic channel to a random graphic structure, the moiré pattern problem that may exist in the display module during practical applications can be suppressed. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a touch display module according to an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of a touch display module according to an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of a touch display module according to an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure of the first capacitor layer according to an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of the first capacitor layer according to an embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of the structure of the first capacitor layer according to an embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram of the structure of the second capacitor layer according to an embodiment of the present invention.

[0029] Figure 8This is a schematic diagram of the structure of the second capacitor layer according to an embodiment of the present invention.

[0030] Figure 9 This is a schematic diagram of the structure of the second capacitor layer according to an embodiment of the present invention.

[0031] Figure 10 This is a cross-sectional structural diagram of the first capacitor layer according to an embodiment of the present invention.

[0032] Figure 11 This is a cross-sectional structural diagram of the second capacitor layer according to an embodiment of the present invention.

[0033] Figure 12 for Figure 4 A magnified schematic diagram of the structure at position E in the middle.

[0034] Figure 13 for Figure 7 Enlarged schematic diagram of the structure at position F in the middle.

[0035] Figure 14 This is a schematic diagram of an irregular random polygonal structure formed by the first receiving groove and / or the second receiving groove according to an embodiment of the present invention.

[0036] Figure 15 This is a schematic diagram of an irregular random polygonal structure formed by the first receiving groove and / or the second receiving groove according to an embodiment of the present invention.

[0037] Figure 16 This is a schematic diagram illustrating the random correspondence between a random polygon structure and a regular polygon structure according to an embodiment of this utility model. Detailed Implementation

[0038] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0040] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar attributes, not to indicate or imply relative importance or a specific order.

[0042] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0043] First Embodiment

[0044] like Figure 1 As shown, this embodiment illustrates a touch display module, comprising:

[0045] Cover plate 1, cover plate 1 includes a first surface 11 and a second surface 12, the first surface 11 and the second surface 12 are disposed opposite to each other;

[0046] First capacitor layer 2, the first capacitor layer 2 is disposed on the second surface 12, and the first capacitor layer 2 includes a plurality of parallel first capacitor channels 20.

[0047] The second capacitor layer 3 is located on the side of the first capacitor layer 2 away from the cover plate 1. The second capacitor layer 3 includes multiple parallel second capacitor channels 30. The orthographic projection of the second capacitor channel 30 on the cover plate 1 and the orthographic projection of the first capacitor channel 20 on the cover plate 1 are perpendicular to each other.

[0048] Adhesive layer 4 is disposed on the side of the second capacitor layer 3 away from the cover plate 1;

[0049] Display panel 5 is located on the side of adhesive layer 4 away from cover plate 1.

[0050] Specifically, the cover plate 1 is transparent or semi-transparent and can be made of one of the following materials: glass, polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), polyimide (PI), etc. The thickness of the cover plate 1 is 25μm-6mm, and the thickness of the cover plate 1 can be 25μm, 65μm, 100μm, 125μm, 188μm, and 250μm, etc., by example.

[0051] Specifically, the first capacitor channel 20 and the second capacitor channel 30 are insulated from each other, and the shape of the first capacitor channel 20 can be strip-shaped (e.g., ...). Figure 4 As shown), double stripe (as shown) Figure 5 (as shown) and rhombus (as shown) Figure 6 As shown), the second capacitor channel 30 can be strip-shaped (e.g., as shown). Figure 7 As shown), double stripe (as shown) Figure 8 (as shown) and rhombus (as shown) Figure 9 (As shown). The shape of the first capacitor channel 20 and the shape of the second capacitor channel 30 can be the same or different, and can be designed according to actual needs. In this embodiment, the shape of the first capacitor channel 20 and the shape of the second capacitor channel 30 are the same to ensure overall consistency and improve the capacitive touch effect. Figures 4-6 As shown, the width D1 of each first capacitor channel 20 ranges from 3mm to 14mm, and the spacing W1 between adjacent first capacitor channels 20 ranges from 4mm to 15mm; Figures 7-9 As shown, the width D2 of each second capacitor channel 30 ranges from 3mm to 14mm, and the spacing W2 between adjacent second capacitor channels 30 ranges from 4mm to 15mm.

[0052] Specifically, the adhesive layer 4 is an OCA (Optically Clear Adhesive) optical adhesive, which has high transmittance and strong adhesion. The second capacitor layer 3 is completely bonded to the display panel 5 through the adhesive layer 4, so that there is no air layer between the second capacitor layer 3 and the display panel 5, which can reduce light refraction and make the display panel 5 present a better visual effect.

[0053] Specifically, the display panel 5 is one of the following: LED panel, LCD panel, OLED panel, TN panel, VA panel, and IPS panel.

[0054] The touch display module of this application has a simple and thin structure. The first capacitor layer 2 and the second capacitor layer 3 are directly integrated onto the cover plate 1. By setting the orthographic projection of the second capacitor channel 30 on the cover plate 1 and the orthographic projection of the first capacitor channel 20 on the cover plate 1 perpendicular to each other, capacitive touch is achieved. This not only eliminates the thickness of two layers of adhesive and two layers of substrate, thereby reducing the overall thickness, but also satisfies the function of capacitive touch. At the same time, since only the first capacitor layer 2 and the second capacitor layer 3 are set, multiple bonding processes are reduced, simplifying the manufacturing process, improving production efficiency, and reducing costs.

[0055] like Figures 10-11As shown, the first capacitor channel 20 includes a plurality of interconnected first receiving grooves 21 and a first conductive structure 22 formed by conductive material filled in the first receiving grooves 21, and the second capacitor channel 30 includes a plurality of interconnected second receiving grooves 31 and a second conductive structure 32 formed by conductive material filled in the second receiving grooves 31.

[0056] A first UV adhesive layer is formed by coating a layer of UV adhesive onto the cover plate 1. A first receiving groove 21 is then formed on the first UV adhesive layer through methods such as graphic embossing, brass finishing, printing, or wire stamping, and subsequently cured. A second UV adhesive layer is formed by coating a layer of UV adhesive onto the first capacitor layer 2. A second receiving groove 31 is then formed on the second UV adhesive layer through methods such as graphic embossing, brass finishing, printing, or wire stamping, and subsequently cured. The UV adhesive can be acrylate or epoxy resin, etc. The conductive material can be a metallic conductive material or a non-metallic conductive material, preferably a conductive material such as silver, copper, or graphene.

[0057] Optionally, the plurality of first receiving slots 21 form a plurality of mutually adjacent regular polygonal structures, and / or the plurality of second receiving slots 31 form a plurality of mutually adjacent regular polygonal structures.

[0058] Specifically, multiple first receiving slots 21 form multiple adjacent regular polygonal structures, which can be rhombuses, quadrilaterals, pentagons, hexagons, etc.; multiple second receiving slots 31 form multiple adjacent regular polygonal structures, which can be rhombuses, quadrilaterals, pentagons, hexagons, etc. Figures 12-13 As shown, in this embodiment, a plurality of first receiving slots 21 form a plurality of adjacent regular quadrilateral structures, and a plurality of second receiving slots 31 form a plurality of adjacent regular quadrilateral structures.

[0059] Optionally, the width d1 of the first receiving groove 21 is 2μm~15μm, the depth h1 of the first receiving groove 21 is 2μm~12μm, the width d2 of the second receiving groove 31 is 2μm~15μm, and the depth h2 of the second receiving groove 31 is 2μm~12μm.

[0060] By controlling the width and depth of the first receiving groove 21 and the second receiving groove 31 within a reasonable range, the yield rate can be improved and the probability of interlayer short circuit between the first capacitor layer 2 and the second capacitor layer 3 can be reduced.

[0061] Second Embodiment

[0062] The touch display module in this embodiment is largely the same as the touch display module in the first embodiment, except that the multiple adjacent polygonal structures formed by the multiple first receiving slots 21 / second receiving slots 31 are different.

[0063] like Figures 14-15 As shown, multiple first receiving slots 21 form multiple adjacent irregular random polygonal structures, and / or multiple second receiving slots 31 form multiple adjacent irregular random polygonal structures.

[0064] In this embodiment, multiple first receiving slots 21 form multiple adjacent irregular random polygonal structures; multiple second receiving slots 31 form multiple adjacent irregular random polygonal structures. The random polygonal structures can suppress the generation of moiré patterns in the display module during application.

[0065] Optionally, the vertices of the multiple random polygon structures have a random correspondence with the vertices of the multiple regular polygon structures arranged in an array. The random correspondence is as follows: the side length of the regular polygon structure is L, the regular polygon structure has multiple first vertices, the random polygon structure has multiple second vertices, and the multiple second vertices do not overlap. The multiple first vertices correspond one-to-one with the multiple second vertices. The distance between each first vertex and the corresponding second vertex is H, and H satisfies: 0<H≤K*L, where K is a random factor and satisfies: 1.25≤K≤1.3.

[0066] refer to Figure 16To illustrate, for example, the vertices of multiple random quadrilateral structures have random correspondences with the vertices of multiple regular quadrilateral structures arranged in an array. The random correspondences are as follows: the regular quadrilateral structure has a side length of L and four first vertices: A1, A2, A3, and A4. The random quadrilateral structure has four second vertices: B1, B2, B3, and B4. These four second vertices do not overlap. Second vertex B1 corresponds to first vertex A1, B2 to first vertex A2, B3 to first vertex A3, and B4 to first vertex A4. Second vertex B1 is randomly positioned within a circle centered at first vertex A1 and with a radius of K*L, so that second vertex B1 corresponds to first vertex A1. The distance H1 between the first vertex A2 and the second vertex B2 satisfies: 0 < H1 ≤ K*L, where K is a random factor and satisfies: 1.25 ≤ K ≤ 1.3. The second vertex B2 is randomly set within a circle centered at the first vertex A2 with a radius of K*L, so that the distance H2 between the second vertex B2 and the first vertex A2 satisfies: 0 < H2 ≤ K*L, where K is a random factor and satisfies: 1.25 ≤ K ≤ 1.3. Similarly, the distance H3 between the second vertex B3 and the first vertex A3 satisfies: 0 < H3 ≤ K*L, where K is a random factor and satisfies: 1.25 ≤ K ≤ 1.3. The distance H4 between the second vertex B4 and the first vertex A4 satisfies: 0 < H1 ≤ K*L, where K is a random factor and satisfies: 1.25 ≤ K ≤ 1.3. Connecting the second vertices B1, B2, B3, and B4 in sequence forms an irregular random quadrilateral structure. The irregular random polygonal structure, when combined with the display panel 5, does not form regular interference with its RGB pixels, thus suppressing the generation of moiré patterns.

[0067] Specifically, the random factor K corresponding to the second vertex B1 and the first vertex A1, the random factor K corresponding to the second vertex B2 and the first vertex A2, the random factor K corresponding to the second vertex B3 and the first vertex A3, and the random factor K corresponding to the second vertex B4 and the first vertex A4 can be the same or different. The random polygon structure and random factor of the first capacitor layer 2 can be the same or different from the random polygon structure and random factor of the second capacitor layer 3.

[0068] Third Embodiment

[0069] The touch display module in this embodiment is largely the same as the touch display module in the first embodiment, except that a functional layer 6 is added. For example... Figure 2 As shown, in this embodiment, the touch display module further includes a functional layer 6, which is disposed on the first surface 11.

[0070] By setting up functional layer 6, the cover plate 1 can be effectively protected and given functions such as anti-fingerprint and anti-dizziness.

[0071] Optionally, the functional layer 6 includes at least one of an anti-glare layer, an anti-fingerprint layer, and an anti-reflective anti-reflective layer.

[0072] By adding an anti-fingerprint layer to improve the fingerprint resistance of the cover plate 1, adding a reflective anti-reflective layer to increase the transmittance and reduce the reflectance of the cover plate 1, and adding an anti-glare layer to enhance the anti-dazzle function of the cover plate 1, excellent optical effects are achieved. The parameters of the functional layers can be set according to actual needs. For example, the anti-glare layer can be set with parameters such as gloss, haze, and transmittance according to actual needs; the anti-fingerprint layer can be set with parameters such as an initial water droplet angle of 110 degrees, 0000# steel wool, 500g force, and an angle greater than 100 degrees after 1000-2000 rubs; the anti-reflective anti-reflective layer can be set with parameters such as an average visible light transmittance of over 95%.

[0073] Fourth embodiment

[0074] The touch display module in this embodiment is largely the same as the touch display module in the third embodiment, except that a first electromagnetic layer 7 and a second electromagnetic layer 8 are added. Figure 3 As shown, the touch display module also includes a first electromagnetic layer 7 and a second electromagnetic layer 8, which are stacked between the cover plate 1 and the first capacitor layer 2, or the first electromagnetic layer 7 and the second electromagnetic layer 8 are stacked between the second capacitor layer 3 and the adhesive layer 4.

[0075] Specifically, in this example, the first electromagnetic layer 7 and the second electromagnetic layer 8 are disposed between the second capacitor layer 3 and the adhesive layer 4. The first electromagnetic layer 7 is disposed on the side of the second capacitor layer 3 away from the cover plate 1, and the second electromagnetic layer 8 is disposed between the first electromagnetic layer 7 and the adhesive layer 4. By setting the first electromagnetic layer 7 and the second electromagnetic layer 8, the touch display module can simultaneously support electromagnetic pen and capacitive touch, providing complete functionality, increasing touch compatibility, improving user experience, and making touch more flexible and convenient.

[0076] Optionally, the first electromagnetic layer 7 includes multiple parallel first electromagnetic channels, and the second electromagnetic layer 8 includes multiple parallel second electromagnetic channels. The orthographic projections of the first electromagnetic channels on the cover plate 1 and the orthographic projections of the second electromagnetic channels on the cover plate 1 are perpendicular to each other.

[0077] Specifically, the orthographic projection of the first electromagnetic channel on the cover plate 1 and the orthographic projection of the first capacitor channel 20 on the cover plate 1 are spaced apart and parallel to each other, and the orthographic projection of the second electromagnetic channel on the cover plate 1 and the orthographic projection of the second capacitor channel 30 on the cover plate 1 are spaced apart and parallel to each other, so as to improve the uniformity of the arrangement of the first electromagnetic channel, the second electromagnetic channel, the first capacitor channel 20 and the second capacitor channel 30, ensure the uniformity of the touch effect at all places, prevent mutual interference, and improve the stability of signal transmission.

[0078] Specifically, the first electromagnetic channel can be designed using the shape and related parameters of the first capacitor channel 20, and the second electromagnetic channel can be designed using the shape and related parameters of the second capacitor channel 30. The shape and related parameters of the first electromagnetic channel and the second electromagnetic channel can be the same or different, and can be designed according to actual needs.

[0079] The touch display module provided in this application can be applied to any electronic product with display function, including but not limited to the following categories: televisions, educational blackboards, laptops, desktop monitors, tablets, automotive displays, industrial control equipment, medical displays, touch interactive terminals, etc. This application does not impose any special limitations on these categories. Electronic products using this touch display module effectively reduce overall thickness and cost, achieving a thinner and lighter design.

[0080] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A touch display module, characterized in that, include: A cover plate (1) includes a first surface (11) and a second surface (12), wherein the first surface (11) and the second surface (12) are disposed opposite to each other; A first capacitor layer (2) is disposed on the second surface (12), and the first capacitor layer (2) includes a plurality of parallel first capacitor channels (20). The second capacitor layer (3) is disposed on the side of the first capacitor layer (2) away from the cover plate (1). The second capacitor layer (3) includes multiple parallel second capacitor channels (30). The orthographic projection of the second capacitor channel (30) on the cover plate (1) and the orthographic projection of the first capacitor channel (20) on the cover plate (1) are perpendicular to each other. An adhesive layer (4) is disposed on the side of the second capacitor layer (3) away from the cover plate (1); Display panel (5), which is located on the side of the adhesive layer (4) away from the cover plate (1).

2. The touch display module according to claim 1, characterized in that, The first capacitor channel (20) includes a plurality of interconnected first accommodating slots (21) and a first conductive structure (22) formed by conductive material filled in the first accommodating slots (21). The second capacitor channel (30) includes a plurality of interconnected second accommodating slots (31) and a second conductive structure (32) formed by conductive material filled in the second accommodating slots (31).

3. The touch display module according to claim 2, characterized in that, The plurality of first receiving slots (21) form a plurality of adjacent regular polygonal structures, and / or the plurality of second receiving slots (31) form a plurality of adjacent regular polygonal structures.

4. The touch display module according to claim 2, characterized in that, The first receiving slots (21) form a plurality of adjacent irregular random polygonal structures, and / or the second receiving slots (31) form a plurality of adjacent irregular random polygonal structures.

5. The touch display module according to claim 4, characterized in that, The vertices of the multiple random polygon structures have random correspondences with the vertices of the multiple regular polygon structures arranged in an array. The random correspondences are as follows: the side length of the regular polygon structure is L, the regular polygon structure has multiple first vertices, the random polygon structure has multiple second vertices, and the multiple second vertices do not overlap. The multiple first vertices correspond one-to-one with the multiple second vertices. The distance between each first vertex and its corresponding second vertex is H, and H satisfies: 0 < H ≤ K * L, where K is a random factor and satisfies: 1.25 ≤ K ≤ 1.

3.

6. The touch display module according to claim 2, characterized in that, The width (d1) of the first receiving groove (21) is 2μm~15μm, the depth (h1) of the first receiving groove (21) is 2μm~12μm, the width (d2) of the second receiving groove (31) is 2μm~15μm, and the depth (h2) of the second receiving groove (31) is 2μm~12μm.

7. The touch display module according to claim 1, characterized in that, The touch display module also includes a functional layer (6), which is disposed on the first surface (11).

8. The touch display module according to claim 7, characterized in that, The functional layer (6) includes at least one of an anti-glare layer, an anti-fingerprint layer, and an anti-reflective anti-reflective layer.

9. The touch display module according to claim 1, characterized in that, The touch display module further includes a first electromagnetic layer (7) and a second electromagnetic layer (8), wherein the first electromagnetic layer (7) and the second electromagnetic layer (8) are stacked between the cover plate (1) and the first capacitor layer (2), or the first electromagnetic layer (7) and the second electromagnetic layer (8) are stacked between the second capacitor layer (3) and the adhesive layer (4).

10. The touch display module according to claim 9, characterized in that, The first electromagnetic layer (7) includes multiple parallel first electromagnetic channels, and the second electromagnetic layer (8) includes multiple parallel second electromagnetic channels. The orthographic projections of the first electromagnetic channels on the cover plate (1) and the orthographic projections of the second electromagnetic channels on the cover plate (1) are perpendicular to each other.

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