Diaphragm bonding method for a housing, housing, and electronic device

Abstract

The present disclosure relates to a method for laminating a diaphragm on a housing, a housing, and an electronic device. The diaphragm laminating method includes providing a housing having a transparent region, preparing a decorative film layer, fixing the decorative film layer on the surface of the transparent region, providing a silicone diaphragm to cover the decorative film layer, laminating the silicone diaphragm on the decorative film layer under a vacuum state, removing bubbles between the decorative film layer and the housing to remove the bubbles between the decorative film layer and the housing, and removing the silicone diaphragm. The housing diaphragm lamination in the present disclosure is carried out under a vacuum state, and the silicone diaphragm is used to laminate the decorative film layer, effectively removing the bubbles between the decorative film layer and the housing, reducing the lamination difficulty, and making the decorative film layer more closely attached to the housing on the premise of ensuring the effect of the decorative film layer.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic devices, and particularly to a method for laminating a film on a housing, a housing, and an electronic device. Background Art

[0002] With the development of technology, in addition to the increasingly powerful functions of electronic devices such as mobile phones and tablet computers, consumers also put forward higher requirements for the appearance of electronic devices.

[0003] Currently, the housing of an electronic device is often designed to be transparent and combined with a decorative film layer to enhance the aesthetics of the electronic device and meet the needs of consumers. However, with the increasingly fierce market competition, the coating process of the decorative film layer faces severe challenges. Summary of the Invention

[0004] To overcome the problems existing in the related art, the present disclosure provides a method for laminating a film on a housing, a housing, and an electronic device.

[0005] According to the first aspect of the embodiments of the present disclosure, a method for laminating a film on a housing is provided. The film laminating method includes:

[0006] Providing a housing having a transparent area;

[0007] Preparing a decorative film layer;

[0008] Fixing the decorative film layer on the surface of the transparent area;

[0009] Providing a silicone film, covering the decorative film layer with the silicone film, and laminating the silicone film to the decorative film layer under a vacuum state;

[0010] Removing bubbles from the decorative film layer and the housing to remove the bubbles between the decorative film layer and the housing;

[0011] Removing the silicone film.

[0012] Optionally, under the vacuum state, laminating the silicone film to the decorative film layer includes:

[0013] Placing the silicone film on one side of the decorative film layer, performing a vacuum pumping process on the area where the silicone film and the decorative film layer are located, so that the silicone film adheres tightly to the decorative film layer.

[0014] Optionally, the degree of vacuum of the vacuum pumping process is -0.1 Mpa.

[0015] Optionally, removing bubbles from the decorative film layer and the housing to remove the bubbles between the decorative film layer and the housing includes:

[0016] Place the housing with the silicone membrane attached therein into an isostatic press. Apply a preset pressure to the housing at a first preset temperature, causing the housing to squeeze against the silicone membrane, so that the decorative film layer is closely attached to the housing through the silicone membrane to remove the air bubbles between the decorative film layer and the housing.

[0017] Optionally, the preset pressure is 20 Mpa - 70 Mpa, and the first preset temperature is 50°C - 90°C.

[0018] Optionally, the thickness of the silicone membrane is less than 1 mm.

[0019] Optionally, the preparation of the decorative film layer includes:

[0020] Provide a base film having a first surface and a second surface disposed opposite to each other;

[0021] Stack and form a first decorative film layer and a first coating layer on the first surface in sequence, and stack and form a second decorative film layer and a second coating layer on the second surface in sequence to form a decorative film layer.

[0022] Optionally, the step of stacking and forming a first decorative film layer and a first coating layer on the first surface in sequence, and stacking and forming a second decorative film layer and a second coating layer on the second surface in sequence includes:

[0023] Form the first decorative film layer on the first surface by means of UV transfer, and form the first coating layer on the surface of the first decorative film layer by means of magnetron sputtering or evaporation coating;

[0024] Form the second decorative film layer on the second surface by means of UV transfer, and form the second coating layer on the surface of the second decorative film layer by means of magnetron sputtering or evaporation coating.

[0025] Optionally, the step of fixing the decorative film layer to the surface of the transparent region includes:

[0026] Form an adhesive layer on the side of the decorative film layer away from the silicone membrane, and fix the decorative film layer to the surface of the transparent region through the adhesive layer.

[0027] Optionally, the step of forming an adhesive layer on the side of the decorative film layer away from the silicone membrane includes:

[0028] The adhesive layer is formed on the decorative film layer by any one of roll coating, roll pasting, and sheet pasting.

[0029] Optionally, the step of covering the decorative film layer with the silicone membrane includes:

[0030] A protective layer is formed on the surface of the decorative film layer, wherein the silica gel film is closely attached to the protective layer.

[0031] Optionally, forming the protective layer on the surface of the decorative film layer includes:

[0032] The protective layer is formed on the surface of the decorative film layer by silk screening.

[0033] Optionally, the protective layer includes an ink layer.

[0034] Optionally, providing the housing includes:

[0035] Providing a substrate;

[0036] Performing an effect treatment on the substrate to form a housing.

[0037] Wherein, performing the effect treatment on the substrate to form a housing includes:

[0038] At a second preset temperature, immersing the substrate in a corrosive liquid and rocking the substrate so that the surface of the substrate has an effect layer to form a housing.

[0039] Optionally, the second preset temperature is 15 - 55 °C, and the rocking speed of rocking the substrate is 5 mm / s - 30 mm / s.

[0040] Optionally, the effect layer includes one or several of a frosted surface, a rhinestone surface, a flocked surface, and a glitter sand surface.

[0041] Optionally, providing the substrate includes:

[0042] The substrate has a 3D three-dimensional structure and is made of one or several of glass, sapphire, transparent polymer material, and transparent composite material;

[0043] When the substrate is glass or sapphire, thermal bending is used to form a 3D three-dimensional structure;

[0044] When the substrate is a transparent polymer material or a transparent composite material, mold high-pressure molding is used to form a 3D three-dimensional structure.

[0045] According to the second aspect of the embodiments of the present disclosure, a housing is provided, and the housing is processed by the above-mentioned housing film fitting method.

[0046] According to the third aspect of the embodiments of the present disclosure, an electronic device is provided, and the electronic device includes the housing as described above.

[0047] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: The fitting of the housing and the diaphragm in the present disclosure is carried out under a vacuum state. The decorative film layer is fitted using a silicone diaphragm, effectively removing the air bubbles between the decorative film layer and the housing, reducing the fitting difficulty, and making the decorative film layer fit more closely to the housing on the premise of ensuring the effect of the decorative film layer.

[0048] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present invention, and are used together with the specification to explain the principles of the present invention.

[0050] Figure 1 is a flowchart of a method for fitting a diaphragm to a housing shown according to an exemplary embodiment.

[0051] Figure 2 is a flowchart of a method for fitting a diaphragm to a housing shown according to an exemplary embodiment.

[0052] Figure 3 is a flowchart of a method for fitting a diaphragm to a housing shown according to an exemplary embodiment.

[0053] Figure 4 is a flowchart of a method for fitting a diaphragm to a housing shown according to an exemplary embodiment.

[0054] Figure 5 is a flowchart of a method for fitting a diaphragm to a housing shown according to an exemplary embodiment.

[0055] Figure 6 is a schematic structural diagram of a housing and a silicone diaphragm shown according to an exemplary embodiment.

[0056] Figure 7 is a schematic structural diagram of a housing shown according to an exemplary embodiment.

[0057] Figure 8 is a microscopic structural diagram of a flash sand surface shown according to an exemplary embodiment. DETAILED DESCRIPTION

[0058] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. On the contrary, they are only examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0059] In the related art, the housings of electronic devices such as mobile phones and tablet computers are mostly made of glass or composite plates, so that they have transparent areas, and decorative film layers are attached to the transparent areas to enhance the light perception effect and aesthetics of the electronic devices and meet the visual needs of users.

[0060] In order to pursue the diversification of the appearance design of electronic devices and achieve a more layered and variable visual effect, the decorative film layer has changed from a single layer to a multi-layer, making the decorative film layer thicker. The decorative film layer contains a variety of adhesive layers to improve the reliability of the connection of the decorative film layer. And in the conventional film laminating process, it is also connected to the housing by an adhesive layer. Not only does the overall thickness of the housing increase, but air bubbles are likely to appear at the connection, affecting the connection effect of the decorative film layer.

[0061] Therefore, on the premise of not losing the appearance effect of the decorative film layer, thinning the overall thickness of the housing and improving the connection effect of the decorative film layer are problems that need to be solved urgently.

[0062] The present disclosure proposes a method for laminating a film on a housing. The film laminating method includes providing a housing having a transparent area, preparing a decorative film layer fixed on the surface of the transparent area, providing a silicone film covering the decorative film layer, laminating the silicone film to the decorative film layer under a vacuum state, degassing the decorative film layer and the housing to remove air bubbles between the decorative film layer and the housing, and removing the silicone film. The film laminating of the housing in the present disclosure is carried out under a vacuum state. The silicone film is used to laminate the decorative film layer, effectively removing air bubbles between the decorative film layer and the housing, reducing the lamination difficulty, and making the decorative film layer more closely attached to the housing on the premise of ensuring the effect of the decorative film layer.

[0063] In an exemplary embodiment, a method for laminating a film on a housing is used to process a housing, which may be, for example, the housing of an electronic device, and the electronic device may be, for example, a mobile phone, a tablet computer, etc. As Figure 1 shown, the method for laminating a film on the housing in this embodiment includes:

[0064] S110. Provide a housing.

[0065] In this step, a housing of an electronic device is provided, wherein the housing has a transparent area so that it is possible to look through the transparent area to the other side of the housing.

[0066] The housing may be, for example, the battery cover of an electronic device or the decorative cover of a camera decoration. The housing has a 3D three-dimensional shape to improve the smoothness of the housing and meet the user's demand for the feel when holding the housing.

[0067] For example, as Figure 6 、 Figure 7As shown, the housing 1 includes an inner surface and an outer surface which are oppositely arranged. The housing 1 includes a main body 11 and an arc portion 12. The edge of the main body 11 is bent towards the inner surface to form the arc portion 12.

[0068] Among them, the main body 11 can be an overall transparent area, or a partial position can be a transparent area. Or, the main body 11 and the arc portion 12 can be an overall transparent area, or a partial position of the entire main body 11 and the arc portion 12 can be a transparent area, specifically subject to the actual design.

[0069] The housing can be made of one or several of glass, sapphire, transparent polymer material, transparent composite material, etc. Among them, the glass is silicate glass, or polycarbonate (PC), or polymethyl methacrylate (PMMA), or a composite material of polycarbonate (PC) and polymethyl methacrylate (PMMA), etc.

[0070] S120. Prepare the decorative film layer.

[0071] In this step, prepare the decorative film layer. The decorative film layer can be a single-film single-plating structure or a single-film double-plating structure. The decorative film layer has, for example, a texture effect, a single-color effect, a gradient color effect, etc.

[0072] S130. Fix the decorative film layer on the surface of the transparent area.

[0073] In this step, as Figure 6 , Figure 7 shown, the decorative film layer 2 is fixed on the surface of the transparent area and is located on the inner surface of the housing 1 to prevent the decorative film layer 2 from being damaged due to wear when the housing 1 is put into use. Through the transparent area, the decorative effect on the decorative film layer 2 can be seen.

[0074] S140. Provide a silicone membrane, and the silicone membrane covers the decorative film layer.

[0075] In this step, as Figure 6 , Figure 7 shown, provide a silicone membrane 3, place the silicone membrane 3 on one side of the decorative film layer 2, and the silicone membrane 3 covers the decorative film layer 2.

[0076] S150. Under vacuum, the silicone membrane adheres to the decorative film layer.

[0077] In this step, as Figure 6 , Figure 7 shown, evacuate the area where the silicone membrane 3 and the decorative film layer 2 are located. Under vacuum, the silicone membrane 3 can adhere to the decorative film layer 2, making the silicone membrane 3 closely adhere to the decorative film layer 2, and further making the decorative film layer 2 more closely adhere to the inner surface of the housing 1.

[0078] In one example, a disposable packaging bag can be used for vacuuming. The housing 1 provided with the silica gel diaphragm 3 is placed in the disposable packaging bag, and the disposable packaging bag is vacuumed to a vacuum degree of -0.1 Mpa, so that the silica gel diaphragm 3 can completely adhere to the surface of the decorative film layer 2.

[0079] Among them, the silica gel diaphragm 3 is elastic. When the silica gel diaphragm 3 adheres to the decorative film layer 2, elastic deformation can occur, making it deform to fit the shape of the housing 1, ensuring that the decorative film layer 2 can be adhered.

[0080] The silica gel diaphragm 3 is in a sheet structure. The thickness of the silica gel diaphragm 3 is less than 1 mm, and the length dimension and width dimension of the silica gel diaphragm 3 are correspondingly greater than the length dimension and width dimension of the housing 1, so that the silica gel diaphragm 3 can cover the entire housing 1, further ensuring that the silica gel diaphragm 3 can cover the entire decorative film layer 2.

[0081] S160. Debubble the decorative film layer and the housing to remove the bubbles between the decorative film layer and the housing.

[0082] In this step, as Figure 6 、 Figure 7 shown, a warm isostatic press is used to debubble the decorative film layer 2 and the housing 1. The housing 1 attached with the silica gel diaphragm 3 is placed in a warm isostatic press (not shown in the figure). At the first preset temperature, a preset pressure is applied to the housing 1, so that the housing 1 squeezes towards the silica gel diaphragm 3, and the decorative film layer 2 tightly adheres to the housing 1 through the silica gel diaphragm 3 to remove the bubbles between the decorative film layer 2 and the housing 1.

[0083] When the housing 1 attached with the silica gel diaphragm 3 is placed in a warm isostatic press (not shown in the figure), it means that the disposable packaging bag is directly placed in the cavity of the warm isostatic press, and through the liquid pressure transmission in the cavity, the surface of the housing receives equal pressure. Under the extrusion of the silica gel diaphragm 3, the tiny bubbles in the arc-shaped part 12 area are expelled, avoiding that in the subsequent baking process, the decorative film 3 is heated to cause the tiny bubbles to aggregate into large bubbles at the corners, affecting the appearance and performance of the housing 1.

[0084] The preset pressure can be, for example, 20 Mpa - 70 Mpa. Among them, when the preset pressure > 30 Mpa, the stress effect of the housing 1 is the best. The first preset temperature is 50°C - 90°C. Among them, when the first preset temperature is 60°C, the debubbling effect is the best, improving the bonding force between the decorative film layer 2 and the housing 1.

[0085] S170. Remove the silica gel diaphragm.

[0086] In this step, after defoaming by the warm isostatic press, the disposable packaging bag is taken out, and the housing after the diaphragm is attached is taken out, and the silicone diaphragm is removed. After removing the silicone diaphragm, the decorative film layer of the housing is wiped with alcohol to eliminate the problem of reduced surface energy caused by using the silicone diaphragm.

[0087] Among them, the silicone diaphragm can be reused for defoaming the next housing, saving the consumable cost in the diaphragm attaching process.

[0088] In the method of this embodiment, the vacuum profiling lamination method is adopted to cover the surface of the decorative film layer with the silicone diaphragm to extrude the decorative film layer, so that the decorative film layer fits more closely with the housing, improving the bonding force of the decorative film layer and avoiding the generation of bubbles between the decorative film layer and the housing, which affects the aesthetics.

[0089] In an exemplary embodiment, a method for attaching a diaphragm to a housing is used for processing a housing. The housing can be, for example, a housing of an electronic device, and the electronic device can be, for example, a mobile phone, a tablet computer, etc. As Figure 2 shown, the method for attaching a diaphragm to the housing in this embodiment includes:

[0090] S210. Provide a housing.

[0091] S220. Provide a base film.

[0092] In this step, as Figure 6 、 Figure 7 shown, provide a base film 21. The base film 21 has a first surface and a second surface arranged oppositely. The first surface can be the front surface of the base film 21, and the second surface can be the back surface of the base film 21.

[0093] The base film 21 is made of a resin material, such as polyethylene terephthalate (PET), so that the base film 21 has excellent physical and mechanical properties in a wide temperature range. The base film 21 has excellent electrical insulation properties, and its electrical properties are still good at high temperatures and high frequencies, and it has good fatigue resistance, friction resistance, and dimensional stability.

[0094] S230. Stack and form a first decorative film layer and a first coating layer on the first surface in sequence, and stack and form a second decorative film layer and a second coating layer on the second surface in sequence to form a decorative film layer.

[0095] In this step, as Figure 6 、 Figure 7 shown, stack and form a first decorative film layer 22 and a first coating layer 23 on the first surface in sequence.

[0096] The first decorative film layer 2 is a first texture layer, and its texture can be realized by UV transfer of a laser-formed mold, for example, roll-to-roll transfer or sheet transfer, etc. Among them, the thickness of the first decorative film layer 2 is 15 μm.

[0097] The first coating layer 23 is formed on the surface of the first decorative film layer 22 by means of magnetron sputtering coating or evaporation coating, that is, vacuum coating (NCVM). For example, magnetron sputtering coating such as roll-to-roll coating or sheet coating. Among them, the first coating layer 23 can be made of a stack of silicon oxide, niobium oxide, and silicon nitride, and the thickness of the first coating layer 23 is 200 nm - 600 nm.

[0098] In this step, as Figure 6 , Figure 7 shown, a second decorative film layer 24 and a second coating layer 25 are sequentially stacked on the second surface.

[0099] The second decorative film layer 24 is the first texture layer, and its texture can be realized by UV transfer using a laser-formed mold, such as roll-to-roll transfer or sheet transfer, etc. Among them, the thickness of the second decorative film layer 24 is 15 μm.

[0100] The second coating layer 25 is formed on the surface of the second decorative film layer 24 by means of magnetron sputtering coating or evaporation coating, that is, vacuum coating (NCVM). For example, magnetron sputtering coating such as roll-to-roll coating or sheet coating. Among them, the second coating layer 25 can be made of a stack of silicon oxide, niobium oxide, and silicon nitride, and the thickness of the second coating layer 25 is 200 nm - 600 nm.

[0101] Coatings are applied on both the front and back sides of the base film 21 to form the decorative film layer 2, which reduces the overall thickness of the decorative film layer 2 by at least 75 μm, reducing the overall thickness of the decorative film layer 2 and facilitating the thin design of the housing 1.

[0102] S240. Fix the decorative film layer on the surface of the transparent area.

[0103] S250. Provide a silicone membrane, and the silicone membrane covers the decorative film layer.

[0104] S260. In a vacuum state, the silicone membrane adheres to the decorative film layer.

[0105] S270. Debubble the decorative film layer and the housing to remove the bubbles between the decorative film layer and the housing.

[0106] S280. Remove the silicone membrane.

[0107] In the method of this embodiment, the first decorative film layer and the second decorative film layer are UV - transferred onto the base film through a laser - formed mold. The first coating layer and the second coating layer are respectively formed on the first decorative film layer and the second decorative film layer by magnetron sputtering or evaporation coating, realizing the texture and coating on both the front and back sides of a single - layer base film, making the shell have a better appearance texture and effectively reducing the overall thickness of the decorative film layer.

[0108] In an exemplary embodiment, a method for laminating a film on a shell is used to process a shell. The shell can be, for example, a shell of an electronic device, and the electronic device can be, for example, a mobile phone, a tablet computer, etc. As Figure 3 shown, the method for laminating a film on the shell in this embodiment includes:

[0109] S310. Provide a shell.

[0110] S320. Prepare a decorative film layer.

[0111] S330. Form an adhesive layer on the side of the decorative film layer away from the silicone film. The decorative film layer is fixed on the surface of the transparent area through the adhesive layer.

[0112] In this step, as Figure 6 、 Figure 7 shown, an adhesive layer 4 is formed on the side of the decorative film layer 2 away from the silicone film 3, and the decorative film layer 2 is fixed on the surface of the transparent area through the adhesive layer 4.

[0113] Among them, the adhesive layer 4 can be an optical OCA (Optically Clear Adhesive) layer, which is colorless and transparent, has a light transmittance of more than 95%, good bonding strength, can be cured at room temperature or medium temperature, and has the characteristics of small curing shrinkage, etc.

[0114] The adhesive layer 4 can be formed on the decorative film layer 2 by any one of roll - coating, roll - pasting, and sheet - pasting. The thickness of the adhesive layer 4 is 25μm.

[0115] S340. Provide a silicone film, and the silicone film covers the decorative film layer.

[0116] S350. In a vacuum state, the silicone film is laminated on the decorative film layer.

[0117] S360. Debubble the decorative film layer and the shell to remove the bubbles between the decorative film layer and the shell.

[0118] S370. Remove the silicone film.

[0119] In the method of this embodiment, the decorative film layer is connected to the shell through the adhesive layer. In a vacuum state, a preset pressure is applied to the shell by using a warm isostatic press to reduce the lamination difficulty and make the lamination of the decorative film layer and the shell better.

[0120] In an exemplary embodiment, a method for laminating a diaphragm of a housing is used to process a housing, which may be a housing of an electronic device, such as a mobile phone, a tablet computer, etc. As Figure 4 shown, the method for laminating a diaphragm of the housing in this embodiment includes:

[0121] S410. Provide a housing.

[0122] S420. Prepare a decorative film layer.

[0123] S430. Fix the decorative film layer on the surface of the transparent area.

[0124] S440. Form a protective layer on the surface of the decorative film layer, wherein a silica gel diaphragm is closely attached to the protective layer.

[0125] In this step, as Figure 6 , Figure 7 shown, the protective layer 5 is coated on the surface of the decorative film layer 2 by screen printing. The protective layer 5 includes an ink layer, presenting an overall color effect and protecting the decorative film layer 2.

[0126] The silica gel diaphragm 3 is closely attached to the protective layer 5 to separate the decorative film layer 2 and the silica gel diaphragm 3 and prevent the silica gel diaphragm 3 from damaging the decorative film layer 2.

[0127] S450. Under a vacuum state, laminate the silica gel diaphragm to the decorative film layer.

[0128] S460. Debubble the decorative film layer and the housing to remove the bubbles between the decorative film layer and the housing.

[0129] S470. Remove the silica gel diaphragm.

[0130] The method in this embodiment uses a protective layer to protect the decorative film layer, prevents the silica gel diaphragm from damaging the decorative film layer, and improves the production yield during the lamination of the diaphragm of the housing.

[0131] In an exemplary embodiment, a method for laminating a diaphragm of a housing is used to process a housing, which may be a housing of an electronic device, such as a mobile phone, a tablet computer, etc. As Figure 5 shown, the method for laminating a diaphragm of the housing in this embodiment includes:

[0132] S510. Provide a substrate.

[0133] In this step, a substrate is provided. The substrate has the shape of a housing that is cut and formed, and the substrate has a 3D three-dimensional structure. The substrate may be made of one or several of glass, sapphire, transparent polymer materials, and transparent composite materials.

[0134] When the substrate is glass or sapphire, hot bending is used to form a 3D three-dimensional structure;

[0135] When the substrate is a transparent polymer material or a transparent composite material, mold high-pressure forming is used to form a 3D three-dimensional structure.

[0136] S520. Perform effect treatment on the substrate to form a housing.

[0137] In this step, at a second preset temperature, immerse the substrate in a corrosive liquid and swing the substrate so that the surface of the substrate has an effect layer, thereby forming a housing.

[0138] The effect layer includes one or more of a matte surface, a rhinestone surface, a flocked surface, and a glitter sand surface. For example, when the effect layer is a glitter sand surface effect, the substrate can be formed by chemical etching and microscopically presents a rock candy-like crystal structure arranged randomly and growing outward. Figure 8 It is a microscopic structure diagram of a glitter sand surface shown according to an exemplary embodiment.

[0139] In one example, immerse the substrate in a chemical solution tank with a hydrochloric acid system formulation and swing it. The swing speed is 5 mm / s - 30 mm / s, and the swing speed is adjusted according to the glitter degree of the glitter sand surface. Among them, the second preset temperature, that is, the temperature of the corrosive liquid in the chemical solution tank, is 15°C - 55°C, and the effect is the best. Too high or too low temperature will affect the corrosion effect, be not conducive to crystal growth, and show poor appearance.

[0140] Among them, the housing has an inner side and an outer side. The effect layer is formed on the inner side, and the decorative film layer is attached to the inner side to form a superimposed effect with the effect layer. And when the housing is applied to an electronic device, the outer side is in an exposed state.

[0141] S530. Prepare the decorative film layer.

[0142] S540. Fix the decorative film layer on the surface of the transparent area.

[0143] S550. Provide a silicone film sheet, and the silicone film sheet covers the decorative film layer.

[0144] S560. In a vacuum state, the silicone film sheet is bonded to the decorative film layer.

[0145] S570. Debubble the decorative film layer and the housing to remove the bubbles between the decorative film layer and the housing.

[0146] S580. Remove the silicone film sheet.

[0147] The method in this embodiment provides a housing with an effect layer. The housing and the decorative film layer are stacked, so that the flash sand surface on the housing is superimposed and combined with the decorative film layer, further enhancing the aesthetics of the housing. Moreover, the effect layer of the housing has a better hand feeling, and its anti-fingerprint property, touch feeling, and appearance are all improved, making the housing more competitive in the market.

[0148] The present disclosure also proposes a housing, which is processed by the film laminating method of the housing in any of the above embodiments, enabling the housing to achieve a superimposed effect, enhancing the high-class sense of the housing, and meeting the user's requirements for appearance.

[0149] The decorative film layer is combined with a silicone film, and by using the method of vacuum profiling lamination and combining with a warm isostatic press, the air bubbles between the decorative film layer and the housing are removed, enhancing the bonding force of the decorative film layer.

[0150] The decorative film layer is arranged on the housing through an adhesive layer. By combining with a warm isostatic press, the problem of difficult lamination of 3D housing is overcome, making the connection between the decorative film layer and the housing more reliable, and improving the film laminating yield rate of the housing.

[0151] The decorative film layer uses the front and back sides of a single-layer base film to carry out texturing and coating on it, realizing a single-film double-coating structure, without losing the rich appearance effect of the decorative film layer, and making the housing have a better appearance texture. And compared with a double-layer decorative film layer, it is at least thinned by 75 μm, which is beneficial to the thin design of the housing.

[0152] The present disclosure also proposes an electronic device, which includes a housing as in the above embodiments. The electronic device is, for example, a mobile phone, a tablet computer, a wearable device, etc., to enhance the aesthetics of the electronic device and the hand feeling when the user holds it, and improve the user's experience.

[0153] After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily think of other embodiments of the present invention. This application is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include the common general knowledge or conventional technical means in the technical field not disclosed in this disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present invention are pointed out by the following claims.

[0154] It should be understood that the present invention is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A method for attaching a diaphragm to a housing, characterized in that, The diaphragm laminating method includes: Providing a housing, which has a transparent area; Preparing a decorative film layer; Fixing the decorative film layer to the transparent area; Providing a silica gel diaphragm, covering the decorative film layer with the silica gel diaphragm, and laminating the silica gel diaphragm to the decorative film layer in a vacuum profiling laminating manner under a vacuum state; Removing bubbles from the decorative film layer and the housing to remove the bubbles between the decorative film layer and the housing; Removing the silica gel diaphragm; Wherein, under the vacuum state, laminating the silica gel diaphragm to the decorative film layer includes: Placing the silica gel diaphragm on one side of the decorative film layer, performing vacuum pumping on the area where the silica gel diaphragm and the decorative film layer are located, and making the silica gel diaphragm closely adhere to the decorative film layer; The silica gel diaphragm is in a sheet structure and has elasticity, and can deform to fit the shape of the housing when laminating the silica gel diaphragm to the decorative film layer.

2. The method for fitting a diaphragm to the housing according to claim 1, characterized in that, The vacuum degree of the vacuum pumping is -0.1 Mpa.

3. The diaphragm fitting method of the housing according to claim 1, characterized in that, Removing bubbles from the decorative film layer and the housing to remove the bubbles between the decorative film layer and the housing includes: Placing the housing with the silica gel diaphragm attached in an isostatic press, applying a preset pressure to the housing at a first preset temperature, making the housing extrude towards the silica gel diaphragm, and tightly laminating the decorative film layer to the housing through the silica gel diaphragm to remove the bubbles between the decorative film layer and the housing.

4. The method for bonding the diaphragm of the housing according to claim 3, characterized in that, The preset pressure is 20 Mpa - 70 Mpa, and the first preset temperature is 50°C - 90°C.

5. The diaphragm fitting method of the housing according to any one of claims 1-4, characterized in that, The thickness of the silica gel diaphragm is less than 1 mm.

6. The diaphragm fitting method of the housing according to claim 1, characterized in that, Preparing the decorative film layer includes: Providing a base film, which has a first surface and a second surface arranged oppositely; Successively laminating a first decorative film layer and a first coating layer on the first surface, and successively laminating a second decorative film layer and a second coating layer on the second surface to form a decorative film layer.

7. The diaphragm fitting method of the housing according to claim 6, characterized in that, Successively laminating a first decorative film layer and a first coating layer on the first surface, and successively laminating a second decorative film layer and a second coating layer on the second surface includes: Forming the first decorative film layer on the first surface by means of UV transfer printing, and forming the first coating layer on the surface of the first decorative film layer by means of magnetron sputtering coating or evaporation coating; Forming the second decorative film layer on the second surface by means of UV transfer printing, and forming the second coating layer on the surface of the second decorative film layer by means of magnetron sputtering coating or evaporation coating.

8. The diaphragm fitting method of the housing according to claim 1, characterized in that, Fixing the decorative film layer to the surface of the transparent area includes: Forming an adhesive layer on the side of the decorative film layer away from the silica gel diaphragm, and fixing the decorative film layer to the surface of the transparent area through the adhesive layer.

9. The method for fitting a diaphragm to the housing according to claim 8, characterized in that, Forming an adhesive layer on the side of the decorative film layer away from the silica gel diaphragm includes: The adhesive layer is formed on the decorative film layer by any one of roll coating, roll pasting, and sheet pasting.

10. The diaphragm fitting method of the housing according to claim 1, characterized in that, Covering the decorative film layer with the silica gel diaphragm includes: Forming a protective layer on the surface of the decorative film layer, wherein the silica gel diaphragm closely adheres to the protective layer.

11. The diaphragm fitting method of the housing according to claim 10, characterized in that, Forming a protective layer on the surface of the decorative film layer includes: The protective layer is formed on the surface of the decorative film layer by silk-screen printing.

12. The diaphragm fitting method of the housing according to claim 10, characterized in that, The protective layer includes an ink layer.

13. The method for laminating a diaphragm of the housing according to claim 1, characterized in that, The provided housing includes: Providing a substrate; Performing an effect treatment on the substrate to form a housing; Wherein, the performing an effect treatment on the substrate to form a housing includes: At a second preset temperature, immersing the substrate in a corrosive liquid, and rocking the substrate so that the surface of the substrate has an effect layer to form a housing.

14. The method for bonding the diaphragm of the housing according to claim 13, wherein, The second preset temperature is 15 - 55 °C, and the rocking speed for rocking the substrate is 5 mm / s - 30 mm / s.

15. The diaphragm fitting method of the housing according to claim 14, characterized in that, The effect layer includes one or several of a matte surface, a rhinestone surface, a flocked surface, and a glitter sand surface.

16. The method for bonding a diaphragm to the housing according to claim 13, characterized in that, The providing a substrate includes: The substrate has a 3D three-dimensional structure and is made of one or several of glass, sapphire, transparent polymer material, and transparent composite material; When the substrate is glass or sapphire, hot bending is used to form a 3D three-dimensional structure; When the substrate is transparent polymer material or transparent composite material, mold high-pressure forming is used to form a 3D three-dimensional structure.

17. A housing, characterized in that, The housing is processed by the housing film laminating method according to any one of claims 1 - 16.

18. An electronic device, characterized in that, The electronic device includes the housing according to claim 17.

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