Case manufacturing method and case of electronic device

Abstract

The application provides a shell manufacturing method and a shell of an electronic device, wherein the shell manufacturing method comprises the following steps: forming a texture layer on a base material through a UV transfer printing process to obtain a textured base material; forming a unidirectional perspective film layer on the texture layer of the textured base material through a vacuum coating process to obtain a first shell layer; forming a color film layer on the texture layer of the textured base material through a deposition process to obtain a second shell layer; and stacking the first shell layer and the second shell layer on a glass cover plate in sequence to form the shell; wherein the first shell layer is arranged between the second shell layer and the glass cover plate, and the unidirectional perspective film layer of the first shell layer is attached to the base material of the second shell layer.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, specifically relating to a housing manufacturing method and a housing for electronic equipment. Background Technology

[0002] To achieve a better visual effect for the casing of electronic devices, patterns are usually designed on the casing. The method of setting patterns on the casing is usually to apply color coatings to two substrates using ordinary sputtering or evaporation coatings to obtain the corresponding patterns. However, the thickness of the two sputtering or evaporation coatings is relatively thick, which affects the overall thickness of the electronic device. Summary of the Invention

[0003] This application aims to provide a housing for an electronic device, an electronic device, and a method for manufacturing the housing of an electronic device, in order to solve or improve one of the technical problems caused by excessive thickness of the housing in order to manufacture patterns on the housing of an electronic device.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] In a first aspect, this application provides a method for manufacturing a housing, comprising:

[0006] A textured substrate is obtained by forming a textured layer on the substrate using a UV transfer printing process.

[0007] A one-way transparent film layer is formed on the textured layer of the textured substrate by vacuum coating process to obtain the first shell layer;

[0008] A color film layer is formed on the textured layer of a textured substrate through a deposition process to obtain a second shell layer;

[0009] The first and second shell layers are stacked sequentially onto the glass cover plate to form a shell;

[0010] The first shell is disposed between the second shell and the glass cover, and the one-way transparent film layer of the first shell is bonded to the substrate of the second shell.

[0011] Secondly, this application provides a housing for an electronic device, manufactured using the housing manufacturing method provided in the first aspect embodiment.

[0012] Thirdly, this application provides an electronic device including the housing of the electronic device as provided in the second aspect embodiment.

[0013] In the embodiments of this application, a UV transfer process is used on a substrate to form a textured layer, resulting in a textured substrate. Then, a vacuum coating process is used on one textured substrate to form a one-way transparent film layer, resulting in a first shell layer. A deposition process is used on another textured substrate to form a color film layer, resulting in a second shell layer. Subsequently, the first shell layer and the second shell layer are sequentially stacked on one side of a glass cover plate, that is, the first shell layer is located between the second shell layer and the glass cover plate, thereby forming a shell. The one-way transparent film layer of the first shell layer is bonded to the substrate of the second shell layer. The thickness of the one-way transparent film layer formed by the vacuum coating process is usually in the nanometer range, thus reducing the thickness of the shell. Furthermore, the one-way transparent film layer has a better reflective effect, which can improve the visual effect of the shell.

[0014] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 A flowchart of a shell manufacturing method provided in one embodiment of this application is shown;

[0017] Figure 2 A schematic diagram of the housing of an electronic device according to one embodiment of this application is shown;

[0018] Figure 3 This illustration shows a schematic diagram of a one-way transparent film layer in the housing of an electronic device according to an embodiment of this application;

[0019] Figure 4 This illustration shows a schematic diagram of a one-way transparent film layer in the housing of an electronic device according to an embodiment of this application;

[0020] Figure 5 A schematic diagram of a color film layer in the housing of an electronic device provided in one embodiment of this application is shown.

[0021] Figures 2 to 5 Figure label:

[0022] 200 Shell, 210 First shell layer, 212 First textured substrate, 214 One-way transparent film layer, 2142 First film layer, 2144 Second film layer, 2146 Hollowed-out area, 216 First substrate, 218 First textured layer, 220 Second shell layer, 222 Second textured substrate, 224 Color film layer, 2242 First optical film layer, 2244 Second optical film layer, 226 Second substrate, 228 Second textured layer, 230 Glass cover plate, 240 Ink layer, 250 First optical adhesive, 260 Second optical adhesive. Detailed Implementation

[0023] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] In the description of this application, it should be understood that the terms "upper" and "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] The following is combined with Figures 1 to 5 This application describes a housing manufacturing method and a housing for an electronic device according to embodiments of the present application.

[0028] Figure 1 A flowchart of a shell manufacturing method provided in one embodiment of this application is shown.

[0029] like Figure 1 As shown, the specific process of a shell manufacturing method provided in one embodiment of this application is as follows:

[0030] Step 102: A textured layer is formed on the substrate using a UV transfer process to obtain a textured substrate;

[0031] Step 104: A one-way transparent film layer is formed on the textured layer of the textured substrate by vacuum coating process to obtain the first shell layer;

[0032] Step 106: A color film layer is formed on the textured layer of the textured substrate by a deposition process to obtain the second shell layer;

[0033] Step 108: Stack the first shell layer and the second shell layer onto the glass cover plate in sequence to form a shell; wherein the first shell layer is disposed between the second shell layer and the glass cover plate, and the one-way transparent film layer of the first shell layer is bonded to the substrate of the second shell layer.

[0034] In the embodiments of this application, a UV transfer process is used on a substrate to form a textured layer, resulting in a textured substrate. Then, a vacuum coating process is used on one textured substrate to form a one-way transparent film layer, resulting in a first shell layer. A deposition process is used on another textured substrate to form a color film layer, resulting in a second shell layer. Subsequently, the first shell layer and the second shell layer are sequentially stacked on one side of a glass cover plate, that is, the first shell layer is located between the second shell layer and the glass cover plate, thereby forming a shell. The one-way transparent film layer of the first shell layer is bonded to the substrate of the second shell layer. The thickness of the one-way transparent film layer formed by the vacuum coating process is usually in the nanometer range, thus reducing the thickness of the shell. Furthermore, the one-way transparent film layer has a better reflective effect, which can improve the visual effect of the shell.

[0035] Furthermore, the texture layer can increase the adhesion of the one-way transparent film layer and the color film layer.

[0036] The one-way transparent film layer is deposited on the surface of the textured layer of the substrate using a vacuum deposition process. It has a one-way transparent effect, allowing light to pass through on the transparent side and a mirror effect on the non-transparent side. In this application, the non-transparent side of the one-way transparent film layer faces the glass cover, allowing both the film layer and the color film layer to pass through the glass cover, forming a two-color pattern and enhancing the visual effect of the casing. For example, the second shell layer can cover part of the first shell layer.

[0037] Specifically, the resulting shell consists of a glass cover, a first shell layer, and a second shell layer, arranged sequentially from one side to the other.

[0038] The specific steps of the UV process can be to first peel off the transfer curing adhesive on the substrate, and then use light to cure it, for example, by using a mercury lamp or halogen lamp with fixed energy to polymerize and cure it, thereby obtaining a light-cured textured layer with a thickness of 9 to 12 micrometers.

[0039] The step of sequentially stacking the first and second shell layers onto the glass cover to form the shell can be specifically achieved by using a composite equipment. The first and second shell layers are aligned using positioning holes, and then a vacuum bonding equipment is used to bond the substrate of the first shell layer to the glass cover. Finally, under vacuum conditions, degassing and de-bubbling are performed to complete the bonding. The pressure holding time between the substrate and the glass cover is 10 seconds, and the pressure is 0.6 × 10⁻⁶. -3 Pa, degassing temperature is 50 degrees Celsius, degassing pressure is 18 MPa, and degassing time is 30 min.

[0040] As one possible implementation, an ink layer is formed on the color film layer of the second shell layer by a screen printing process, and the ink layer is disposed on the side of the second shell layer away from the first shell layer.

[0041] Specifically, an ink layer is formed on the color film layer of the second shell using a screen printing process. When the first and second shells are stacked on the glass cover, the ink layer is located on the side of the second shell facing away from the first shell. This ink layer serves as the bottom layer, ensuring the display effect of the shell from the light-transmitting cover side. To achieve better color effects, the thickness of the ink layer is 10µm to 25µm. When the ink layer is black, three layers of black ink can be screen-printed; when the ink layer is white, three layers of white ink and one layer of black ink can be screen-printed.

[0042] As one possible implementation, forming a one-way transparent film layer on the textured layer of a textured substrate by vacuum deposition to obtain a first shell layer includes: forming a first film layer on the textured layer by vacuum deposition; forming a second film layer on the textured layer by vacuum deposition to obtain the first shell layer; wherein the first film layer is a single-crystal silicon film layer or a manganese dioxide film layer; the second film layer includes at least one of niobium oxide, titanium dioxide, silicon dioxide and silicon nitride.

[0043] Specifically, the step of forming a one-way transparent film layer on the textured layer of a textured substrate using a vacuum deposition process to obtain a first shell layer includes: processing the textured layer of the substrate using a vacuum deposition process to form a first film layer, and processing the textured layer of the substrate using a vacuum deposition process to form a second film layer. The first film layer and the second film layer can be stacked, and the first film layer is a monocrystalline silicon film layer or a manganese dioxide film layer; the second film layer includes at least one of niobium oxide, titanium dioxide, silicon dioxide, and silicon nitride.

[0044] One-way transparent films are multilayer film structures. Multilayer film structures can use single-crystal silicon (Si) or manganese dioxide (MnO2) materials as special film layers. Such film layers have certain absorption characteristics. Other coatings can be one or more of niobium oxide (Nb2O5) layers, titanium dioxide (TiO2) layers, silicon dioxide (SiO2) layers, and silicon nitride (Si3N4) layers.

[0045] The material of the first film layer is either monocrystalline silicon (Si) or manganese dioxide (MnO2). Monocrystalline silicon (Si) can achieve a low thickness and high brightness appearance, which is beneficial to reducing the cost of the casing. Manganese dioxide (MnO2) can achieve a black or dark coating effect without ink base, which is also beneficial to reducing the cost of the casing.

[0046] Furthermore, monocrystalline silicon (Si) and manganese dioxide (MnO2) have good adhesion and are non-conductive, resulting in good film quality without affecting the antennas of electronic devices, which is beneficial for the widespread application of this material in 3C products.

[0047] The first film layer is made of one or more of niobium pentoxide (Nb2O5), titanium dioxide (TiO2), silicon dioxide (SiO2), and silicon nitride (Si3N4), and different colors can be presented by superimposing films of different materials.

[0048] The coating process for a one-way transparent film can be completed sequentially by following the steps of substrate loading, vacuuming, ion source cleaning, color film deposition, and unloading. The coating method is either sputtering or evaporation coating, with a vacuum level of 2.0 × 10⁻⁶. -3 Pa up to 8.0 × 10 -3 The Pa range is between 2 and 10 min, and the ion source cleaning time is between 2 and 10 min.

[0049] In the deposition process of the silver semi-transparent one-way transparent film, the deposition rate of silicon (Si) was 0.3 nm / s, and the deposition rate of silicon dioxide (SiO2) was 0.5 nm / s. In the deposition process of the blue one-way transparent film, the deposition rate of niobium pentoxide (Nb2O5) was 0.2 nm / s, and the deposition rate of silicon dioxide (SiO2) was 0.5 nm / s.

[0050] After the coating is completed, the first shell layer is immersed in a pure water bath at 50 degrees Celsius for 20 minutes, and then rinsed and dried in a pure water cleaning line.

[0051] As one possible implementation, the thickness of the one-way transparent film layer is 100 nm to 700 nm.

[0052] Specifically, the total thickness of the one-way transparent film layer is between 100nm and 700nm, thus ensuring that the thickness of the one-way transparent film layer is relatively thin, which is beneficial to reducing the thickness of the shell.

[0053] As one possible implementation, the one-way transparent film layer includes multiple layers of second film layers, with adjacent layers having different thicknesses or compositions.

[0054] Specifically, the second layer of the one-way transparent film layer has multiple layers, and the thickness or composition of adjacent second film layers are different. Of course, the thickness and composition of adjacent second film layers can be different. Thus, by setting multiple second film layers, the visual effect of the shell is improved.

[0055] For example, the first and second films have a total of 8 layers. Layers 1, 3, and 5 are silicon dioxide (SiO2) layers with a single layer thickness of 36.22 nm, layer 7 is a manganese dioxide (MnO2) layer with a single layer thickness of 22.15 nm, and layers 2, 4, 6, and 8 are monocrystalline silicon (Si) with a single layer thickness of 84.46 nm.

[0056] This one-way transparent film has a silvery, semi-transparent effect and a total thickness of 468.65 nm. The first layer is composed of monocrystalline silicon (Si) and manganese dioxide (MnO2). In the Lab color space (Lab for short), with L = 80, a = 0.3, and b = 0, its average transmittance in the visible spectrum (400 nm to 700 nm) is approximately 20%, its average reflectance is approximately 75%, and its light absorption is approximately 5%.

[0057] For example, the first and second films have a total of 8 layers. Layers 1, 3, 5 and 7 are niobium pentoxide (Nb2O5) with a single layer thickness of 41.02 nm, while layers 2, 4, 6 and 8 are silicon dioxide (SiO2) with a single layer thickness of 61.47 nm.

[0058] This one-way transparent film has a blue coating effect and a total thickness of 474.96 nm. In the color-opposite space (Labcolor space for short), its L = 67.72, a = -30.04, and b = -43.97.

[0059] In one possible implementation, before forming a one-way transparent film layer on the textured layer of the textured substrate by a vacuum coating process to obtain the first shell layer, the method further includes screen printing a water-soluble ink layer on the textured layer to form an ink protective layer; after forming the one-way transparent film layer on the textured layer of the textured substrate by a vacuum coating process to obtain the first shell layer, the method further includes immersing the first shell layer in water to remove the ink protective layer.

[0060] Specifically, before forming a one-way transparent film layer on the textured layer of the textured substrate using a vacuum coating process to obtain the first shell layer, the shell manufacturing method further includes: using a screen printing process to print a water-soluble ink layer on the textured layer of the textured substrate to form an ink protective layer; then, using a vacuum coating process on the textured layer of the textured substrate to form a one-way transparent film layer; after obtaining the first shell layer, the shell manufacturing method further includes: immersing the first shell layer in water to remove the ink protective layer, thereby removing the one-way transparent film layer on the ink protective layer, resulting in a hollowed-out area on the one-way transparent film layer; subsequently, after the first shell layer and the second shell layer are stacked on the glass cover plate, the color film layer on the second shell layer can be displayed through the hollowed-out area on the one-way transparent film layer; and the color film layer and the one-way transparent film layer on the second shell layer can form a certain pattern, enhancing the visual effect of the shell. Furthermore, by cleaning the water-soluble material, the substrate and the one-way transparent film layer with the hollowed-out area can be obtained quickly, and the hollowed-out area is precisely positioned with neat edges. The cut-out areas can be used to create text patterns, graphic patterns, and symbol patterns.

[0061] In this process, a water-soluble ink layer is printed on the textured layer of the textured substrate using a screen printing process. The ink is then surface-dried in a tunnel oven at a temperature of 60 to 90 degrees Celsius for 8 to 15 minutes.

[0062] Furthermore, the first shell layer is immersed in water at a temperature of 30°C to 60°C for 10 to 30 minutes, allowing the protective ink layer and its one-way transparent film layer to dissolve in the water along with the water-soluble ink layer. Then, the substrate surface is cleaned of any remaining plating residue and dirt, and dried for later use. The water-soluble ink layer, with a thickness of 5 to 6 μm, is surface-dried in a tunnel oven at 70°C for 10 minutes, with a minimum linewidth of 0.15 μm.

[0063] As one possible implementation, forming a color film layer on the textured layer of a textured substrate by a deposition process to obtain a second shell layer includes: alternately depositing a first optical film layer and a second optical film layer on the textured layer to obtain a second shell layer; wherein the refractive index of the first optical film layer is higher than the refractive index of the second optical film layer.

[0064] Specifically, the step of forming a color film layer on the textured layer of a textured substrate through a deposition process to obtain a second shell layer includes: alternately depositing a first optical film layer and a second optical film layer on the textured layer of the textured substrate to obtain a second shell layer; wherein the refractive index of the first optical film layer is higher than that of the second optical film layer, thereby improving the visual effect of the shell.

[0065] The coating process involves sequentially loading the substrate, vacuuming, ion source cleaning, color film deposition, and unloading. The coating method is either sputtering or evaporation coating, with a coating vacuum degree of 2.0 × 10⁻⁶. -3 Pa up to 8.0 × 10 -3 Pa, ion source cleaning time 2 min to 10 min.

[0066] As one possible implementation, the first optical film layer includes at least one of niobium oxide, silicon nitride, and titanium dioxide; the second optical film layer includes silicon dioxide or magnesium fluoride.

[0067] Specifically, the first optical film layer can be one or more of niobium oxide (Nb2O5), silicon nitride (Si3N4), and titanium dioxide (TiO2), and the second optical film layer can be silicon dioxide (SiO2) or magnesium fluoride (MgF2).

[0068] As one possible implementation, the total thickness of the color film layer is 200 nm to 700 nm.

[0069] Specifically, the total thickness of the color film layer is 200nm to 700nm, thereby reducing the thickness of the shell.

[0070] In one possible implementation, the substrate is a polyethylene terephthalate layer, the polyethylene terephthalate layer of the first shell is bonded to the glass cover plate by optical adhesive, and the polyethylene terephthalate layer of the second shell is bonded to the one-way transparent film layer of the first shell by optical adhesive.

[0071] Specifically, the substrate can be polyethylene terephthalate (PET). The first shell layer of PET is bonded to the glass cover using optical adhesive, and the second shell layer of PET is bonded to the one-way transparent film layer of the first shell using optical adhesive. Both the PET and optical adhesive materials have high transparency, thus enhancing the visual effect of the shell. The optical adhesive is Optically Clear Adhesive (OCA).

[0072] The substrate has a transmittance of 90% in the visible light range. The thickness of the substrate is 50µm to 75µm, specifically 60µm, and the thickness of the optical adhesive is 20µm to 30µm, specifically 25µm.

[0073] Specifically, the shell manufacturing method provided in this application involves sequentially screen printing water-soluble ink patterns, applying a one-way transparent film layer, and removing the ink from the surface to ultimately achieve a patterned polyethylene terephthalate (PET) film coating effect. In practical applications, the patterned PET coating film serves as the first shell layer, combined with a second shell layer featuring light and shadow effects and textures, and then adhered to the inner surface of the glass cover. At this point, the shell exhibits multi-layered, multi-angled, multi-light and shadow effects with a high-quality feel in both the patterned and non-patterned areas, greatly expanding the diversity of the shell coating's appearance.

[0074] Specifically, such as Figure 2 As shown, the housing 200 has, from one side to the other, a glass cover 230, a first optical adhesive 250, a first substrate 216, a first texture layer 218, a one-way transparent film layer 214, a second optical adhesive 260, a second substrate 226, a second texture layer 228, a color film layer 224, and an ink layer 240.

[0075] This application provides a housing for an electronic device, comprising: a housing manufactured using the housing manufacturing method provided in the first aspect.

[0076] The housing of the electronic device provided in this application is manufactured using the housing manufacturing method provided in the first aspect, and therefore has all the beneficial effects of the housing manufacturing method provided in any of the above embodiments, which will not be described in detail here.

[0077] like Figure 2 As shown, the present application provides a housing 200: the housing 200 has a glass cover plate 230, a first optical adhesive 250, a first shell layer 210, a second optical adhesive 260, a second shell layer 220, and an ink layer 240 in sequence from one side to the other.

[0078] The first shell layer 210 includes a one-way transparent film layer 214 and a first textured substrate 212. The one-way transparent film layer 214 is bonded to the second shell layer 220. The first textured substrate 212 includes a first substrate 216 and a first textured layer 218. The first substrate 216 is bonded to a first optical adhesive 250. The one-way transparent film layer 214 is disposed on the first textured layer 218. The one-way transparent film layer refers to a film layer with a high reflectivity to visible light. After the one-way transparent film layer is deposited on the first shell layer, it can exhibit mirror properties in a strong light environment, thereby improving the appearance brightness of the shell.

[0079] The second shell layer 220 includes a color film layer 224 and a second textured substrate 222. An ink layer 240 is disposed on the color film layer 224. The second textured substrate 222 includes a second substrate 226 and a second textured layer 228. The second substrate 226 is bonded to a second optical adhesive 260, and the color film layer 224 is disposed on the second textured layer 228. Furthermore, a one-way vision film layer 214 and the second substrate 226 are located on opposite sides of the second optical adhesive 260.

[0080] like Figure 3 As shown, the one-way transparent film layer 214 has a hollow area 2146, so that the color of the color film layer 224 can be seen through the hollow area 2146, thereby forming a two-color and patterned shell 200.

[0081] like Figure 4 As shown, the one-way transparent film layer 214 includes a first film layer 2142 and a second film layer 2144. The first film layer 2142 is a single crystal silicon film layer or a manganese dioxide film layer; the second film layer 2144 includes at least one of niobium oxide, titanium dioxide, silicon dioxide and silicon nitride.

[0082] The first film layer 2142 can be one or more layers, and the materials of the first film layer 2142 of different layers can be the same or different. The second film layer 2144 can be one or more layers, and the materials of the second film layer 2144 of different layers can be the same or different.

[0083] like Figure 5 As shown, the color film layer 224 includes a first optical film layer 2242 and a second optical film layer 2244. The first optical film layer 2242 includes at least one of niobium oxide, silicon nitride and titanium dioxide; the second optical film layer 2244 includes silicon dioxide or magnesium fluoride.

[0084] The first optical film layer 2242 can be one or more layers, and the materials of different layers of the first optical film layer 2242 can be the same or different. The second optical film layer 2244 can be one or more layers, and the materials of different layers of the second optical film layer 2244 can be the same or different.

[0085] As one possible implementation, the housing of the electronic device further includes: a light effect component disposed in the first housing layer or the second housing layer.

[0086] Specifically, a light effect component is provided on the first or second shell layer. The light effect component can emit light, thereby enhancing the visual effect of the shell. Furthermore, after the shell is applied to an electronic device, the optical component can be electrically connected to the processor of the electronic device, so that the processor can control parameters such as the brightness and color of the light effect component, thereby enhancing the visual effect of the shell.

[0087] This application provides an electronic device, including the housing of the electronic device as provided in the second aspect embodiment.

[0088] The electronic device provided in this application, since it includes the housing of the electronic device provided in the second aspect, has all the beneficial effects of the housing of the electronic device provided in any of the above embodiments, which will not be described in detail here.

[0089] Among them, electronic devices can be mobile phones, tablets, laptops, or wearable devices, etc.

[0090] In the description of this specification, references to terms such as "an embodiment" or "specific embodiment" indicate that a particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0091] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for manufacturing a shell, characterized in that, include: A textured substrate is obtained by forming a textured layer on the substrate using a UV transfer printing process. A one-way transparent film layer is formed on the textured layer of the textured substrate by a vacuum coating process to obtain a first shell layer; A color film layer is formed on the textured layer of the textured substrate by a deposition process to obtain a second shell layer; The first shell layer and the second shell layer are stacked sequentially onto the glass cover plate to form a shell; The first shell layer is disposed between the second shell layer and the glass cover plate. The one-way transparent film layer of the first shell layer is bonded to the substrate of the second shell layer. The non-transparent side of the one-way transparent film layer faces the glass cover plate. The one-way transparent film layer has a hollow area.

2. The shell manufacturing method according to claim 1, characterized in that, An ink layer is formed on the color film layer of the second shell layer by a screen printing process, and the ink layer is disposed on the side of the second shell layer away from the first shell layer.

3. The shell manufacturing method according to claim 1, characterized in that, The process of forming a one-way transparent film layer on the textured layer of the textured substrate through a vacuum deposition process to obtain the first shell layer includes: A first film layer is formed on the textured layer by a vacuum deposition process; A second film layer is formed on the textured layer by a vacuum deposition process to obtain the first shell layer; The first film layer is a monocrystalline silicon film layer or a manganese dioxide film layer; the second film layer includes at least one of niobium oxide, titanium dioxide, silicon dioxide and silicon nitride.

4. The shell manufacturing method according to claim 3, characterized in that, The thickness of the one-way transparent film is 100nm to 700nm.

5. The shell manufacturing method according to claim 3, characterized in that, The one-way transparent film layer includes multiple layers of the second film layer, and adjacent layers of the second film layer have different thicknesses or different compositions.

6. The method for manufacturing a shell according to any one of claims 1 to 5, characterized in that, Before forming a one-way transparent film layer on the textured layer of the textured substrate by vacuum deposition to obtain the first shell layer, the method further includes screen printing a water-soluble ink layer on the textured layer to form an ink protective layer. After forming a one-way transparent film layer on the textured layer of the textured substrate by vacuum coating process to obtain a first shell layer, the method further includes immersing the first shell layer in water to remove the ink protective layer.

7. The method for manufacturing a housing according to any one of claims 1 to 5, characterized in that, The process of forming a color film layer on the textured layer of the textured substrate through a deposition process to obtain the second shell layer includes: A first optical film layer and a second optical film layer are alternately deposited on the textured layer to obtain a second shell layer; The refractive index of the first optical film layer is higher than that of the second optical film layer.

8. The shell manufacturing method according to claim 7, characterized in that, The first optical film layer includes at least one of niobium oxide, silicon nitride, and titanium dioxide; The second optical film layer comprises silicon dioxide or magnesium fluoride.

9. The shell manufacturing method according to claim 7, characterized in that, The total thickness of the color film layer is 200 nm to 700 nm.

10. The method for manufacturing a shell according to any one of claims 1 to 5, characterized in that, The substrate is a polyethylene terephthalate layer. The polyethylene terephthalate layer of the first shell is bonded to the glass cover plate with optical adhesive, and the polyethylene terephthalate layer of the second shell is bonded to the one-way transparent film layer of the first shell with optical adhesive.

11. A housing for an electronic device, characterized in that, It is manufactured using the shell manufacturing method as described in any one of claims 1 to 10.

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