Composite cover plate and electronic device

Abstract

The utility model relates to electronic equipment cover plate technical field, concretely relates to composite cover plate and electronic device. Composite cover plate includes transparent glass fiber layer, magnetic ink layer and cover bottom ink layer. Among them, the transparent glass fiber layer includes first surface. Magnetic ink layer sets up in the first surface of transparent glass fiber layer. And, cover bottom ink layer sets up in the side of magnetic ink layer away from transparent glass fiber layer. Among them, the first surface can point to the side surface away from the user in the observation process of user. The utility model discloses composite cover plate has the similar permeability effect with glass, and adopts two -dimensional plane structure to realize the permeability stereoscopic vision effect.

Description

Technical Field

[0001] This utility model relates to the field of electronic device cover technology, and in particular to a composite cover and an electronic device. Background Technology

[0002] Currently, the main material for protective covers of electronic devices is glass, which suffers from problems such as heavy weight, fragility, and poor toughness during use. Therefore, covers made from transparent organic materials have emerged. For example, PET (polyethylene terephthalate) and fiberglass offer advantages such as light weight, durability, transparency, and resistance to chemical corrosion. To further improve the appearance of the cover, traditional techniques involve adding a textured layer to achieve a textured effect; however, this textured structure is monotonous and lacks a three-dimensional feel. Utility Model Content

[0003] Based on this, the present invention provides a composite cover plate and an electronic device with a three-dimensional appearance.

[0004] A first aspect of this utility model provides a composite cover plate, the composite cover plate comprising:

[0005] A transparent fiberglass layer, including a first surface;

[0006] A magnetic ink layer is disposed on the first surface of the transparent glass fiber layer; and

[0007] The bottom ink layer is located on the side of the magnetic ink layer that faces away from the transparent fiberglass layer.

[0008] In one embodiment, the transparent fiberglass layer is a fiberglass composite material layer formed by hot-pressing fiberglass fabric and epoxy resin.

[0009] In one embodiment, the thickness of the transparent fiberglass layer is 0.3 mm to 0.8 mm.

[0010] In one embodiment, the flexural strength of the transparent glass fiber layer is 400 MPa to 600 MPa.

[0011] In one embodiment, the flexural modulus of the transparent glass fiber layer is 17GP to 28GP.

[0012] In one embodiment, the light transmittance of the transparent fiberglass layer is 84% ​​to 90%.

[0013] In one embodiment, the haze of the transparent fiberglass layer is 4% to 12%.

[0014] In one embodiment, the thickness of the magnetic ink layer is 7 μm to 15 μm.

[0015] In one embodiment, the thickness of the cover ink layer is 20 μm to 36 μm.

[0016] In one embodiment, the composite cover plate further includes a patterned layer disposed between the transparent fiberglass layer and the magnetic ink layer, the patterned layer covering at least a portion of the first surface.

[0017] In one embodiment, the composite cover plate further includes a texture layer and a coating layer disposed between the pattern layer and the magnetic ink layer, the texture layer and the coating layer being disposed sequentially along the direction from the pattern layer toward the magnetic ink layer.

[0018] In one embodiment, the composite cover plate further includes a color layer, at least one color layer disposed between the magnetic ink layer and the cover / bottom ink layer.

[0019] In one embodiment, the thickness of the color layer is 5 μm to 12 μm.

[0020] In one embodiment, the composite cover plate further includes a second surface disposed opposite to the first surface, and a protective layer is disposed on the second surface.

[0021] In one embodiment, the protective layer includes a hardening layer disposed on the second surface; or, the protective layer includes a base layer and a hardening layer disposed sequentially in a direction away from the transparent fiberglass layer.

[0022] A second aspect of this invention provides an electronic device comprising a composite cover as described in any of the first aspects.

[0023] Compared with traditional technologies, this utility model has at least the following beneficial effects:

[0024] This invention features a magnetic ink layer and a cover ink layer on the surface of a transparent fiberglass layer. Light, after being reflected and refracted by the transparent fiberglass layer and the magnetic ink layer, creates a three-dimensional texture in the magnetic ink layer. As the viewing angle of the composite cover changes, the magnetic ink layer exhibits color changes, flow effects, and variations in brightness. Therefore, this composite cover has a transparency similar to glass, and its two-dimensional planar structure achieves a transparent, three-dimensional visual effect.

[0025] Furthermore, this invention can also incorporate a pattern layer. Through the synergistic effect of the transparent fiberglass layer and the magnetic ink layer, the pattern layer exhibits different display effects at different angles. Although the pattern layer is positioned above the magnetic ink layer, at certain viewing angles, it appears as if the magnetic ink layer is suspended above the pattern layer, effectively improving the transparent and three-dimensional visual effect of the composite cover.

[0026] Furthermore, this invention can also incorporate a textured layer and a coating layer. The textured layer, magnetic ink layer, and transparent fiberglass layer work synergistically to enrich the overall texture and display effects. Simultaneously, the reflective effect of the coating layer works in conjunction with the high light transmittance of the transparent fiberglass layer to enhance the transparency of the composite cover. Therefore, the textured layer and coating layer further increase the three-dimensionality and layering of the composite cover. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a composite cover plate provided as an example of the present utility model;

[0028] Figure 2 A schematic diagram of the structure of a composite cover plate provided in another example of this utility model;

[0029] Figure 3 A schematic diagram of the structure of a composite cover plate provided as an example of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of an electronic device provided as an example of this utility model.

[0031] Explanation of reference numerals in the attached drawings: 100-Composite cover plate; 110-Transparent fiberglass layer; 120-Magnetic ink layer; 130-Underlay ink layer; 140-Pattern layer; 150-Texture layer; 160-Coating layer; 170-Color layer; 180-Protective layer; 181-Hardening layer; 182-Underlay layer; 200-Electronic device. Detailed Implementation

[0032] The composite cover and electronic device of this utility model will be further described in detail below with reference to specific embodiments. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0034] In this article, "one or more" refers to any one, two or more of the listed items.

[0035] In this utility model, terms such as "first aspect," "second aspect," "third aspect," "fourth aspect," and "fifth aspect" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or quantity, nor should they be construed as implicitly indicating the importance or quantity of the indicated technical features. Moreover, terms such as "first," "second," "third," "fourth," and "fifth" serve only as a non-exhaustive enumeration and should be understood not to constitute a closed limitation on the quantity.

[0036] In this utility model, the technical features described in an open-ended manner include both closed technical solutions composed of the listed features and open technical solutions that include the listed features.

[0037] In this invention, numerical ranges are involved. Unless otherwise specified, the numerical ranges are considered continuous and include the minimum and maximum values ​​of the range, as well as every value between the minimum and maximum values. Furthermore, when the range refers to integers, it includes every integer between the minimum and maximum values ​​of the range. Additionally, when multiple ranges are provided to describe a feature or characteristic, the ranges may be merged. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all subranges to which they are incorporated.

[0038] In traditional techniques, due to the high haze of glass fiber materials, magnetic ink is typically applied to the outer surface of the glass fiber material to showcase its visual appeal. This allows users to directly observe the aesthetic effect of the magnetic ink. However, if the magnetic ink is viewed through the glass fiber material, the high haze significantly degrades the viewing experience, and may even prevent the display of the magnetic ink's aesthetic effect.

[0039] See Figure 1 In a first aspect of this embodiment, a composite cover plate 100 is provided, including a transparent glass fiber layer 110, a magnetic ink layer 120, and a cover and bottom ink layer 130.

[0040] The transparent fiberglass layer 110 includes a first surface. A magnetic ink layer 120 is disposed on the first surface of the transparent fiberglass layer 110. A cover ink layer 130 is disposed on the side of the magnetic ink layer 120 facing away from the transparent fiberglass layer 110. In this embodiment, the first surface refers to the surface facing away from the user during observation, and the opposite side of the first surface is the second surface, which refers to the surface facing the user during observation.

[0041] Because the transparent fiberglass layer 110 has good light transmittance, light, after being reflected and refracted by the transparent fiberglass layer 110 and the magnetic ink layer 120, can give the magnetic ink layer 120 a three-dimensional texture. As the viewing angle of the composite cover plate 100 changes, the magnetic ink layer 120 can exhibit color changes, flow effects, and brightness variations. Therefore, the composite cover plate 100 in this embodiment has a transparency effect similar to glass, and achieves a transparent three-dimensional visual effect using a two-dimensional planar structure.

[0042] In this embodiment, the magnetic ink layer 120 may have a certain texture or pattern. For example, a magnetic printing plate with a pattern to be printed may be used to process the printed magnetic ink layer 120. The magnetic ink is deflected under the magnetic force of the magnetic printing plate, thereby forming a magnetic ink layer 120 with a certain texture or pattern.

[0043] It should be noted that the magnetic ink layer 120 includes a matrix resin layer and magnetic powder dispersed in the matrix resin layer. It can be formed by screen printing and curing using conventional magnetic inks. The matrix resin can be a light-transmitting resin material, such as acrylic resin. Furthermore, at least one of fumed silica particles and nano-titanium dioxide particles can be dispersed in the matrix resin to regulate the optical properties of the matrix resin layer. In addition, the magnetic powder can be one or a combination of iron oxide black and iron oxide brown. Furthermore, the particle size of the magnetic powder can be 1 μm to 30 μm.

[0044] In one example, the transparent fiberglass layer 110 is a fiberglass composite material layer formed by hot-pressing fiberglass fabric and epoxy resin. The refractive index of the fiberglass fabric is similar to that of the epoxy resin. For example, the difference between the refractive indices of the fiberglass fabric and the epoxy resin is -0.1 to 0.1. This embodiment uses the lightweight and tough transparent fiberglass layer 110 as the supporting structure of the composite cover 100, giving the composite cover 100 the advantages of being lightweight and having excellent drop resistance.

[0045] In this embodiment, the transparent fiberglass layer 110 can be formed by hot-pressing a fiberglass fabric and epoxy resin. The fiberglass fabric can be one of woven, knitted, or combed fabrics. Different weaving processes and cutting directions result in different fiberglass patterns in the fiberglass fabric. Therefore, transparent fiberglass layers 110 with different fiberglass patterns can work in conjunction with the magnetic ink layer 120 to exhibit different visual effects.

[0046] In one example, the thickness of the transparent fiberglass layer 110 is 0.3mm to 0.8mm. For example, the thickness of the transparent fiberglass layer 110 includes, but is not limited to, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, or 0.8mm. Selecting the thickness of the transparent fiberglass layer 110 as described above ensures that the composite cover 100 has a certain strength and stability while also meeting the requirements for a thinner and lighter design. Furthermore, it also further ensures the transparent and three-dimensional visual effect of the composite cover 100.

[0047] In one example, the flexural strength of the transparent fiberglass layer 110 is 400 MPa to 600 MPa. For example, the flexural strength of the transparent fiberglass layer 110 includes, but is not limited to, 400 MPa, 450 MPa, 500 MPa, 550 MPa, or 600 MPa.

[0048] In one example, the flexural modulus of the transparent fiberglass layer 110 is 17GP to 28GP. For example, the flexural modulus of the transparent fiberglass layer 110 includes, but is not limited to, 17GP, 19GP, 20GP, 22GP, 25GP, or 28GP.

[0049] In one example, the light transmittance of the transparent fiberglass layer 110 is 84% ​​to 90%. For example, the light transmittance of the transparent fiberglass layer 110 includes, but is not limited to, 84%, 86%, 88%, or 90%.

[0050] In one example, the haze of the transparent fiberglass layer 110 is 4% to 12%. For example, the haze of the transparent fiberglass layer 110 includes, but is not limited to, 4%, 6%, 8%, 10%, or 12%.

[0051] This embodiment provides a transparent fiberglass layer 110 with good flexural strength, flexural modulus, light transmittance, and haze, achieving a glass-like effect, excellent resistance to bending deformation, and good optical performance. Furthermore, the transparent fiberglass layer 110 is compatible with the functional layers of the composite cover plate 100, enabling the composite cover plate 100 to have excellent display effects.

[0052] In one example, the thickness of the magnetic ink layer 120 is 7μm to 15μm. For example, the thickness of the magnetic ink layer 120 includes, but is not limited to, 7µm, 8µm, 9µm, 10µm, 11µm, 12µm, 13µm, 14µm, or 15µm. The thickness of the magnetic ink layer 120 selected above in this embodiment ensures a balance between printing quality and cost, while also improving the dynamic texture variation effect of the magnetic ink layer 120.

[0053] In one example, the thickness of the cover ink layer 130 is 20μm to 36µm, for example, it can be 20μm, 22μm, 24μm, 26μm, 28μm, 30μm, 32μm, 34μm, or 36μm. In this embodiment, the cover ink layer 130 is an opaque layer. The cover ink layer 130 can improve opacity and enhance color saturation, making the printed colors more vibrant and bright, thus improving the overall visual effect. Specifically, the cover ink layer 130 can be formed by multiple screen printing processes. Furthermore, the cover ink layer 130 can also protect the printed area, improve flame retardant properties, and increase the adhesion between the composite cover plate 100 and auxiliary materials such as foam.

[0054] See Figure 2 In one example, the composite cover plate 100 further includes a pattern layer 140 disposed between the transparent fiberglass layer 110 and the magnetic ink layer 120, the pattern layer 140 covering at least a portion of the first surface. The thickness of the pattern layer 140 is 2µm to 8µm, for example, it can be 2µm, 3µm, 4µm, 5µm, 6µm, 7µm, or 8µm. The pattern layer 140 may be a bright silver ink layer.

[0055] It is understood that the pattern layer 140 can be formed on at least a portion of the surface of the transparent fiberglass layer 110 by screen printing. The pattern of the pattern layer 140 includes, but is not limited to, fonts or logos. For example, the pattern layer 140 may only have a certain thickness in the area covered by the desired pattern.

[0056] In this embodiment, a pattern layer 140 is provided above. Through the synergistic effect of the transparent fiberglass layer 110 and the magnetic ink layer 120, the pattern layer 140 exhibits different display effects at different angles. Although the pattern layer 140 is positioned above the magnetic ink layer 120, at certain viewing angles, the magnetic ink layer 120 appears to float above the pattern layer 140, effectively improving the transparent and three-dimensional visual effect of the composite cover plate 100.

[0057] See Figure 3 In one example, the composite cover plate 100 further includes a texture layer 150 and a coating layer 160 disposed between the pattern layer 140 and the magnetic ink layer 120, with the texture layer 150 and coating layer 160 sequentially disposed along the pattern layer 140 toward the magnetic ink layer 120. In this embodiment, the texture layer 150 and coating layer 160 are disposed as described above. The texture effects of the texture layer 150, the magnetic ink layer 120, and the transparent fiberglass layer 110 synergistically enrich the texture and display effects. Simultaneously, the reflective effect of the coating layer 160 works in conjunction with the high light transmittance of the transparent fiberglass layer 110 to improve the transparency of the composite cover plate 100. Therefore, the texture layer 150 and coating layer 160 can further enhance the three-dimensionality and layering of the composite cover plate 100.

[0058] In this embodiment, the texture layer 150 refers to a functional layer with a certain texture structure on its surface. For example, the texture structure can be a groove structure or a periodic texture arrangement structure. The texture layer 150 can be prepared using a UV transfer printing process, i.e., the texture structure is transferred onto a UV adhesive layer. Furthermore, to ensure that the reflected light of the coating layer 160 is not blocked, the texture layer 150 should also be translucent. Even further, the texture layer 150 can be a single layer. In this embodiment, since both the magnetic ink layer 120 and the transparent fiberglass layer 110 in the composite cover plate 100 have a certain texture structure, the number of texture layers 150 can be effectively reduced. This not only reduces design costs but also avoids problems such as increased thickness, decreased light transmittance, and increased haze in the composite cover plate 100 caused by multiple layers of artificial texture layers 150, thus preventing the achievement of a high-transparency, glass-like effect.

[0059] In one example, the thickness of the texture layer 150 is 9µm to 15µm. For example, the thickness of the texture layer 150 may include, but is not limited to, 9µm, 10µm, 11µm, 12µm, 13µm, 14µm, or 15µm. Setting the thickness of the texture layer 150 as described above ensures clear texture and good visual effect, while mitigating the drawbacks of a relatively large texture layer 150 thickness affecting the overall performance of the composite cover plate 100, or a slightly thinner thickness resulting in an indistinct texture.

[0060] It is understood that the coating layer 160 refers to a metal layer or metal oxide layer formed by methods such as deposition. For example, it can be a functional layer prepared by physical vapor deposition. For example, the material of the coating layer 160 includes, but is not limited to, ZrO / SiO / NbO / SiO / NbO composite materials.

[0061] In one example, the thickness of the coating layer 160 is 400 nm to 700 nm. For example, the thickness of the coating layer 160 may include, but is not limited to, 400 nm, 450 nm, 500 nm, 550 nm, 600 nm, 650 nm, or 700 nm. Selecting the thickness of the coating layer 160 as described above allows for precise control of optical properties while ensuring good film performance, such as hardness, to achieve specific color and reflectivity requirements, effectively improving the appearance quality and durability of the composite cover plate 100.

[0062] In one example, the color reflectance of the coating layer 160 is not less than 30%. Further, the color reflectance can be 30% to 80%. Setting the color reflectance of the coating layer 160 as described above can effectively enhance the color performance and gloss of the composite cover plate 100.

[0063] See also Figure 3In one example, the composite cover 100 further includes a color layer 170, with at least one color layer 170 disposed between the magnetic ink layer 120 and the cover / base ink layer 130. By providing the color layer 170, the composite cover 100 can have a corresponding background color as needed. The color can be monochrome, multi-color, or gradient, and can be achieved through processes such as screen printing, offset printing, color printing, or inkjet printing. The color layer 170 can enhance the three-dimensionality and layering of the composite cover 100, further improving its color performance.

[0064] In one example, the thickness of the color layer 170 is 5μm to 12μm, for example, it can be 5μm, 6μm, 7μm, 8μm, 9μm, 10μm, 11μm or 12μm. It can be selected as 5μm to 10μm.

[0065] Also see Figure 3 In one example, the composite cover 100 also includes a second surface disposed opposite to the first surface, and a protective layer 180 is disposed on the second surface. This embodiment protects the second surface of the transparent fiberglass layer 110 by providing the protective layer 180, for example, by increasing surface hardness or preventing fingerprints from forming.

[0066] In one example, the protective layer 180 includes a hardened layer 181 disposed on the second surface. The hardened layer 181 can be formed by methods such as dip coating, spraying, or printing. The hardened layer 181 can protect the composite cover plate 100, thereby significantly improving the hardness and wear resistance of the composite cover plate 100, giving it excellent scratch and impact resistance.

[0067] In one example, the hardness of the side of the hardened layer 181 facing away from the second surface is 2H to 5H, including but not limited to 2H, 3H, 4H, or 5H. Further, the hardened layer 181 facing away from the second surface has a steel wool abrasion resistance of not less than 500 cycles under a 1KG external force, for example, it can be 500 to 5000 cycles. The thickness of the hardened layer 181 is 10µm to 40µm. For example, the thickness of the hardened layer 181 includes, but is not limited to, 10µm, 15µm, 20µm, 25µm, 30µm, 35µm, or 40µm.

[0068] In this embodiment, the hardened layer 181 is selected as above, so that the composite cover 100 has both good scratch resistance to resist scratches from sharp objects in daily use and high wear resistance, which can withstand frequent friction without significant wear, effectively protecting the appearance and performance of the composite cover 100.

[0069] In one example, the adhesion of the hardened layer 181 directly loaded on the transparent fiberglass layer 110 is poor. Further, the protective layer 180 includes a primer layer 182 and the hardened layer 181 sequentially disposed along a direction opposite to the transparent fiberglass layer 110. In this embodiment, the primer layer 182 not only enhances the bonding force between the hardened layer 181 and the transparent fiberglass layer 110, but also improves the surface gloss of the composite cover plate 100 and provides good transparency.

[0070] In one example, the thickness of the primer layer 182 is 3µm to 15µm. For example, the thickness of the primer layer 182 may include, but is not limited to, 3µm, 5µm, 8µm, 10µm, 12µm, or 15µm. Setting the thickness of the primer layer 182 as described above enhances the adhesion between the primer layer 182 and the transparent fiberglass layer 110, while also serving as a medium interlayer to ensure the bonding strength between the hardened layer 181 and the transparent fiberglass layer 110.

[0071] In one example, the base layer 182 may include at least one layer of acrylic resin and polyurethane resin. The base layer 182 can be formed using methods such as screen printing. When the base layer 182 is an acrylic resin layer, the high transparency and weather resistance of the acrylic resin layer can improve the gloss and UV resistance of the composite cover 100. When a polyurethane resin layer is used, the wear resistance and toughness of the polyurethane resin layer can improve the durability of the composite cover 100. Furthermore, the base layer 182 of the above materials has good adhesion to both the transparent fiberglass layer 110 and the hardening layer 181, thereby forming a structurally stable composite cover 100.

[0072] See Figure 4 In a second aspect, the present invention provides an electronic device 200, which includes a composite cover plate 100 according to any one of the first aspects of the present invention.

[0073] Understandably, the electronic device 200 of this utility model has all the advantages of the composite cover plate 100 described above, so it will not be repeated here.

[0074] For example, electronic device 200 includes a composite cover plate 100 and an electronic device body. The electronic device body is bonded to the side of the composite cover plate 100 having a magnetic ink layer 120. For example, electronic device 200 includes, but is not limited to, mobile phones, tablets, computers, televisions, printers, copiers, or electronic watches. For example, composite cover plate 100 is the rear cover of electronic device 200.

[0075] In summary, the transparent fiberglass layer 110 of this invention features high light transmittance and low haze. A magnetic ink layer 120 is directly screen-printed or sprayed onto the surface of the transparent fiberglass layer 110, creating a three-dimensional effect. Depending on the viewing angle, it can display color changes, flow effects, and brightness variations. The effect of the magnetic ink layer differs depending on the viewing direction. Furthermore, by setting a pattern layer 140 between the transparent fiberglass layer 110 and the magnetic ink layer 120, the pattern layer 140 can appear to float below or above the magnetic ink layer 120 when viewed from different directions, creating an excellent transparent three-dimensional visual space. Although this composite cover 100 adopts a 2D planar structure, it can present a three-dimensional, textured appearance and a glass-like effect.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The above embodiments are merely illustrative of several implementation methods of this embodiment, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this embodiment, and these all fall within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the appended claims.

Claims

1. A composite cover plate, characterized in that, The composite cover plate (100) includes: A transparent fiberglass layer (110) includes a first surface; A magnetic ink layer (120) is disposed on the first surface of the transparent glass fiber layer (110); and, A bottom ink layer (130) is disposed on the side of the magnetic ink layer (120) opposite to the transparent glass fiber layer (110).

2. The composite cover plate as described in claim 1, characterized in that, The transparent glass fiber layer (110) is a glass fiber composite material layer formed by hot pressing glass fiber fabric and epoxy resin.

3. The composite cover plate as described in claim 1, characterized in that, The thickness of the transparent fiberglass layer (110) is 0.3mm~0.8mm; And / or, the flexural strength of the transparent glass fiber layer (110) is 400MPa~600MPa; And / or, the flexural modulus of the transparent glass fiber layer (110) is 17GP~28GP; And / or, the light transmittance of the transparent glass fiber layer (110) is 84%~90%; And / or, the haze of the transparent fiberglass layer (110) is 4%~12%; And / or, the thickness of the magnetic ink layer (120) is 7μm~15μm; And / or, the thickness of the cover ink layer (130) is 20μm~36μm.

4. The composite cover plate as described in claim 1, characterized in that, The composite cover plate (100) further includes a pattern layer (140) disposed between the transparent fiberglass layer (110) and the magnetic ink layer (120), the pattern layer (140) covering at least a portion of the first surface.

5. The composite cover plate as described in claim 4, characterized in that, The composite cover plate (100) further includes a texture layer (150) and a coating layer (160) disposed between the pattern layer (140) and the magnetic ink layer (120), wherein the texture layer (150) and the coating layer (160) are disposed sequentially along the direction of the pattern layer (140) toward the magnetic ink layer (120).

6. The composite cover plate as described in claim 1, characterized in that, The composite cover plate (100) further includes a color layer (170), at least one of the color layers (170) being disposed between the magnetic ink layer (120) and the cover bottom ink layer (130).

7. The composite cover plate as described in claim 6, characterized in that, The thickness of the color layer (170) is 5μm~12μm.

8. The composite cover plate according to any one of claims 1-7, characterized in that, The composite cover plate (100) also includes a second surface disposed opposite to the first surface, and a protective layer (180) is disposed on the second surface.

9. The composite cover plate as described in claim 8, characterized in that, The protective layer (180) includes a hardening layer (181) disposed on the second surface; or, the protective layer (180) includes a base layer (182) and a hardening layer (181) disposed sequentially in a direction away from the transparent fiberglass layer (110).

10. An electronic device, characterized in that, Includes the composite cover plate (100) as described in any one of claims 1-9.

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