CN110381688B - Decorative membrane, shell assembly and electronic equipment - Google Patents

Decorative membrane, shell assembly and electronic equipment Download PDF

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Publication number
CN110381688B
CN110381688B CN201910668228.0A CN201910668228A CN110381688B CN 110381688 B CN110381688 B CN 110381688B CN 201910668228 A CN201910668228 A CN 201910668228A CN 110381688 B CN110381688 B CN 110381688B
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Prior art keywords
layer
decorative film
bearer
texture
colour
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CN201910668228.0A
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CN110381688A (en
Inventor
杨鑫
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201910668228.0A priority Critical patent/CN110381688B/en
Publication of CN110381688A publication Critical patent/CN110381688A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00Processes for producing special ornamental bodies
    • B44C5/04Ornamental plaques, e.g. decorative panels, decorative veneers
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • H05K5/0243Mechanical details of casings for decorative purposes

Abstract

The invention relates to a decorative membrane, a shell assembly and an electronic device. This decorate diaphragm includes first bearer layer, the colour layer, second bearer layer and texture layer, the material on first bearer layer is thermoplastic polyurethane elastomer, the colour layer sets up on one side surface on first bearer layer, the colour layer is the OCA glue film that has the colour, the material on second bearer layer is thermoplastic polyurethane elastomer, the second bearer layer sets up the one side of keeping away from first bearer layer on the colour layer, the texture layer sets up the one side of keeping away from the colour layer on second bearer layer, the material on texture layer is UV glues.

Description

Decorative membrane, shell assembly and electronic equipment
Technical Field
The invention relates to a decorative membrane, a shell assembly and an electronic device.
Background
With the advent of the 5G era, more and more housings are made of transparent materials (e.g., glass, organic polymers, etc.) due to the electromagnetic shielding effect of the conventional housings. Among them, the Unibody (cover plate-middle frame integrated) structure is favored by more and more terminal manufacturers as a 3D structure with great potential. However, the appearance effect of the housing can be directly competitive and differentiated for the terminal device, at present, in order to improve the appearance effect of the transparent housing, the decoration film is usually attached to the 3D structure, however, when the current decoration film is attached to the 3D structure, the decoration layer of the film is easy to break, and the production efficiency is seriously affected.
Disclosure of Invention
Based on this, it is necessary to provide a decorative film that can effectively avoid the problem of breakage when the film is attached to a 3D structure.
In addition, a shell assembly and an electronic device are also provided.
The utility model provides a decorate diaphragm, includes first bearer layer, colour layer, second bearer layer and texture layer, the material of first bearer layer is thermoplastic polyurethane elastomer, the colour layer sets up one side of first bearer layer is on the surface, the colour layer is for having coloured OCA glue film, the material of second bearer layer is thermoplastic polyurethane elastomer, the second bearer layer sets up keeping away from on the colour layer one side of first bearer layer, the texture layer sets up keeping away from on the second bearer layer one side on the colour layer, the material on texture layer is UV glues.
The inventor researches and discovers that because the decorative layer of the existing colored PET decorative film is usually an inorganic optical film and is made of inorganic metal oxide, such as magnesium fluoride, titanium dioxide, zirconium oxide and the like, the decorative layer basically cracks when the tensile deformation is more than 10%, the ductility of both PET and the inorganic optical film is insufficient, and when the PET decorative film is attached to a 3D structure bent at a large angle, the tensile deformation required to be borne is 10% -30%, so that the film layer is easy to break when the existing PET decorative film is attached to the 3D structure bent at a large angle, and the production efficiency is seriously influenced. And the material of the first bearer layer and the second bearer layer of above-mentioned decoration diaphragm is thermoplastic polyurethane elastomer, the colour layer is the OCA glue film that has the colour, the material on texture layer is UV glues, thermoplastic polyurethane elastomer, OCA glue film and UV glue all have better ductility, can guarantee not fracture when laminating with the 3D structure of bending at the wide-angle, thereby avoid the cracked problem of rete among the laminating process effectively, consequently, above-mentioned decoration diaphragm can be applicable to the 3D structure decoration of bending at the wide-angle well and use, be favorable to improving production efficiency.
A shell assembly comprises a shell and the decorative membrane, wherein one side, far away from the first surface, of the first bearing layer can be attached to the surface of the shell.
Because the shell assembly uses the decorative membrane, the shell assembly has higher production efficiency.
An electronic device, comprising:
the above-mentioned housing assembly;
the display module is connected with the shell and forms an accommodating cavity together with the shell; and
the circuit board is arranged in the accommodating cavity.
The shell assembly of the electronic equipment has high production efficiency, so that the electronic equipment also has high production efficiency.
Drawings
FIG. 1 is a partial cross-sectional view of one embodiment of a decorative film;
FIG. 2 is a partial cross-sectional view of another embodiment of a decorative film sheet without an adhesive layer and a release film;
FIG. 3 is a partial cross-sectional view of another embodiment of a decorative film without a reflective layer;
FIG. 4 is a partial cross-sectional view of another embodiment of a decorative film without a light-shielding layer;
FIG. 5 is a partial cross-sectional view of another embodiment of a decorative film sheet without a reflective layer and a light-shielding layer;
FIG. 6 is a partial cross-sectional view of another embodiment of a decorative film sheet without an adhesive layer, a release film, a reflective layer, and a light-shielding layer;
FIG. 7 is a schematic structural view of a housing of an embodiment of a housing assembly;
FIG. 8 is a partial cross-sectional view of an embodiment of a housing assembly (only the adhesive layer, the first carrier layer and the color layer of the decorative film are shown in FIG. 8, and other layers are omitted);
fig. 9 is a partial cross-sectional view of another embodiment of the housing assembly (only the first carrier layer and the color layer of the decorative film are shown in fig. 9, and the other layers are omitted).
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, 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 belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1, an embodiment of the decorative film 100, the decorative film 100 can be used to adhere to a piece to be decorated, and is particularly suitable for a piece having a 3D structure. For example, the to-be-decorated piece may be a housing of an electronic device, where the electronic device may be a mobile phone, a tablet computer, etc., the decoration film 100 may be adhered to a surface of the housing (the housing is made of, for example, glass, an organic transparent substrate, etc.) to achieve a function of decorating the housing, and particularly, the decoration film 100 may be attached to a housing of a 3D structure (e.g., a Unibody structure) bent at a large angle without breaking. The decoration film 100 includes a first carrier layer 110, a color layer 120, an adhesive layer 130, a second carrier layer 140, a texture layer 150, a reflective layer 160, and a light-shielding layer 170.
The material of the first carrier layer 110 is a thermoplastic polyurethane elastomer (TPU). TPU has good ductility and is not easy to break.
Specifically, the thickness of the first carrier layer 110 is 30 to 35 micrometers. If the thickness of the first carrier layer 110 exceeds 35 μm, the toughness of the decorative film 100 is insufficient, and defects such as bubbles and wrinkles are likely to be generated at corners during bonding; if the thickness of the first carrier layer 110 is less than 30 μm, the rigidity of the first carrier layer 110 may be insufficient, which is not favorable for forming the color layer 120 by screen printing.
Specifically, the shore hardness of the first carrier layer 110 is 55A to 65A. If the shore hardness of the first carrier layer 110 exceeds 65A, the toughness of the decorative film 100 is insufficient, and the defects such as bubbles and wrinkles are easily generated at the corners in the attaching process; a shore hardness lower than 55A may result in insufficient rigidity of the first carrier layer 110, which is not favorable for subsequent manufacturing (e.g., screen printing) of the color layer 120 on the first carrier layer 110.
The color layer 120 is disposed on one side surface of the first carrier layer 110, and the color layer 120 is an oca (optical Clear adhesive) glue layer with a color. In one embodiment, the color layer 120 is obtained by screen printing a colored OCA paste on the first carrier layer 110. The OCA glue with different colors is printed in sequence to realize the color change combination of the color layer 120 or form the effect of color gradual change. Typically the OCA glue is clear and coloured OCA glue can be obtained by adding pigments to the OCA glue.
Since the adhesion of the OCA glue is reduced by adding the pigment, the risk of peeling off the color layer 120 is increased, and in order to reduce the risk of peeling off the color layer 120, the surface tension of the side surface of the first carrier layer 110 close to the color layer 120 is more than 38 dyne. Wherein the surface tension is herein obtained by the Dacron test as is conventional in the art. The surface tension of the surface of the first carrier layer 110 on the side close to the color layer 120 can be controlled by controlling parameters when the first carrier layer 110 is manufactured, or can be obtained by performing a modification treatment on the surface of the first carrier layer 110.
In one embodiment, the color layer 120 has a thickness of 15 to 75 microns. It is understood that the thickness of the color layer 120 can be adjusted as desired.
The adhesive layer 130 is disposed on a side of the first carrier layer 110 away from the color layer 120. The adhesive layer 130 can bond the decorative film 100 and the piece to be decorated (e.g., a housing) together. The adhesive layer 130 is transparent to avoid affecting the decorative effect of the decorative film 100. Further, the adhesive layer 130 is colorless to avoid affecting the color effect of the color layer 120.
In one embodiment, the material of the adhesive layer 130 is OCA glue, hot melt glue, UV curable glue, or the like. The hot melt adhesive may be, for example, EVA resin or the like. It should be noted that, the material of the bonding layer 130 is not limited to the above material, and the material of the bonding layer 130 is a sticky substance which can be bonded and fixed with the to-be-decorated piece and has small corrosiveness, wherein, because the OCA glue can be directly adhered to the to-be-decorated piece, no heating or ultraviolet light action is needed, the operation is more convenient.
In one embodiment, the thickness of the adhesive layer 130 is 5 to 20 micrometers, and the adhesive layer 130 with the thickness can more firmly adhere the decorative film 100 to the to-be-decorated piece and has a thinner thickness. It should be noted that the thickness of the adhesive layer 130 can be set as required, as long as the decorative film 100 can be firmly adhered to the decoration to be decorated.
Further, the decorative film 100 further includes a release film 180 disposed on a side of the adhesive layer 130 away from the first carrier layer 110. Release film 180 can play the effect of protection tie coat 130, during the use, directly tear off release film 180 and remove. The release film 180 may be a PET film sheet or the like. It is understood that the release film 180 may be omitted, and the decorative film 100 may be produced and then directly adhered to the decorative member to be decorated.
The second carrier layer 140 is disposed on a side of the color layer 120 away from the first carrier layer 110. The material of the second carrier layer 140 is a thermoplastic polyurethane elastomer (TPU). Since the color layer 120 is made of OCA glue, that is, the color layer 120 itself has viscosity, the second carrier layer 140 is directly adhered and fixed to the color layer 120. Since the pigment can reduce the adhesion of the OCA glue to reduce the risk of peeling off the color layer 120, the surface tension of the side surface of the second carrier layer 140 close to the color layer 120 is more than 38 dyne.
Specifically, the thickness of the second carrier layer 140 is 30 to 35 micrometers. The thickness of the decorative film exceeds 35 μm, which causes insufficient toughness, and the decorative film 100 is easy to generate air bubbles, wrinkles and other defects at corners in the attaching process; if the thickness is less than 30 μm, the rigidity of the second carrier layer 140 may be insufficient, which is not favorable for the subsequent fabrication of the texture layer 150 on the second carrier layer 140.
Specifically, the shore hardness of the second carrier layer 140 is 65A to 80A. Too high hardness can cause insufficient toughness of the second bearing layer 140, and defects such as bubbles and wrinkles are easily generated at corners in the fitting process; too low a hardness may result in the second carrier layer 140 having insufficient rigidity, which is not conducive to subsequent fabrication of the texture layer 150 on the second carrier layer 140.
The texture layer 150 is disposed on a side of the second carrier layer 140 away from the color layer 120. The texture layer 150 is made of UV glue. In one embodiment, the texture layer 150 is obtained by nanoimprinting (transfer printing), i.e. the texture layer 150 is made of UV transfer printing glue. Specifically, the texture layer 150 has a micro-nano structure, and the micro-nano structure is at least one selected from a micro-lens structure, a cylindrical mirror structure, a fresnel lens structure, a CD pattern, and a small short line. The cylindrical mirror structure is a linear cylindrical mirror, a curved cylindrical mirror, etc.
In order to firmly adhere the texture layer 150 and the second carrier layer 140, the surface tension of the side surface of the second carrier layer 140 close to the texture layer 150 is 38 dyne or more. The surface tension of the second carrier layer 140 can be controlled by controlling parameters when the second carrier layer 140 is manufactured, or obtained by modifying the surface of the second carrier layer 140.
The reflective layer 160 is disposed on a side of the textured layer 150 remote from the second carrier layer 140. Because the texture layer 150 is made of UV glue, the glossiness of the UV glue is lower than that of the conventional colored PVD optical layer, and the reflective layer 160 can play a role of reflection and brightness enhancement to increase the glossiness of the texture layer 150.
The reflective layer 160 is made of metal. Since the inorganic oxide layer has poor toughness and is prone to tensile fracture, the inorganic oxide layer basically cracks when the tensile deformation is greater than 10%, and the reflective layer 160 is made of metal, so that the metal has good tensile ductility and can effectively avoid the problem of cracking and fracture. In one of the embodiments, the reflective layer 160 is obtained by PVD (physical vapor deposition).
In one embodiment, the reflective layer 160 is made of indium or tin, which hardly shields the electromagnetic waves, so that the decorative film 100 can be used to decorate the mobile phone housing. It should be noted that, if the decorative film 100 is applied to other non-communication fields, the material of the reflective layer 160 is not limited to indium and tin, as long as the metal can perform reflection and brightness enhancement.
In one embodiment, the reflective layer 160 has a thickness of 10 microns to 50 microns. It is understood that the thickness of the reflective layer 160 can be adjusted to vary the desired gloss level.
The light-shielding layer 170 is disposed on a side of the reflective layer 160 away from the texture layer 150, the light-shielding layer 170 can not only prevent light from penetrating therethrough, but also highlight the color effect of the color layer 120, and the light-shielding layer 170 can also protect the reflective layer 160. The light-shielding layer 170 and the reflective layer 160 together constitute a functional layer.
Specifically, the material of the light-shielding layer 170 is white ink or black ink. The black ink and the white ink have better light shading effect.
In one embodiment, the light-shielding layer 170 has a thickness of 5 to 30 microns. It is understood that the thickness of the light-shielding layer 170 may be adjusted according to the change in the desired glossiness.
The decorative film 100 has at least the following advantages:
(1) the inventor researches and discovers that because the decorative layer of the existing colored PET decorative film is usually an inorganic optical film and is made of inorganic metal oxide, such as magnesium fluoride, titanium dioxide, zirconium oxide and the like, the decorative layer basically cracks when the tensile deformation is more than 10%, the ductility of both PET and the inorganic optical film is insufficient, and when the PET decorative film is attached to a 3D structure bent at a large angle, the tensile deformation required to be borne is 10% -30%, so that the film layer is easy to break when the existing PET decorative film is attached to the 3D structure bent at a large angle, and the production efficiency is seriously influenced. And the material of the first bearing layer 110 and the second bearing layer 140 of the above-mentioned decorative membrane 100 is thermoplastic polyurethane elastomer, color layer 120 is the OCA glue film with color, the material of texture layer 150 is UV glue, thermoplastic polyurethane elastomer, OCA glue film and UV glue all have better ductility, can guarantee not to break when laminating with the 3D structure of bending at the wide-angle, thereby avoid the cracked problem of rete among the laminating process effectively, consequently, above-mentioned decorative membrane 100 can be applicable to the 3D structure decoration of bending at the wide-angle well and use, be favorable to improving production efficiency.
(2) Through setting up reflector layer 160, the material of reflector layer 160 adopts the metal, and the metal also has better tensile ductility, sets up reflector layer 160 promptly and not only can play the effect of reflection brightening, promotes texture layer 150's glossiness, can also be applicable to the laminating of the 3D structure of wide-angle bending well and use.
(3) The decorative film 100 has better toughness by reasonably controlling the parameters of each layer, and can effectively avoid the problems of generating bubbles, folds and other defects at the corners when the decorative film 100 is attached to a 3D structure; meanwhile, by reasonably setting the parameters (thickness, hardness and surface tension) of the first bearing layer 110 and the second bearing layer 140, the decorative membrane 100 has better toughness, and the problem of setting the color layer 120 and the texture layer 150 can be solved, so that the color layer 120 and the texture layer 150 can be well fused in the decorative membrane 100, and the decorative membrane 100 has rich decorative effect.
It should be noted that the decorative film 100 is not limited to the above structure, in other embodiments, the adhesive layer 130 may be omitted, and at this time, the release film 180 is not needed for the decorative film 100, and at this time, the structure of the decorative film 100 is as shown in fig. 2, and when in use, a transparent adhesive is used to attach the side of the first carrier layer 110 of the decorative film 100 away from the color layer 120 to the decoration to be decorated; alternatively, at least one of the reflective layer 160 and the light-shielding layer 170 may be omitted, and when the reflective layer 160 is omitted, the light-shielding layer 170 is disposed on a side of the texture layer 150 away from the second carrier layer 140, in this case, the decorative film 100 does not have the reflective layer 160 (the structure of the decorative film 100 is shown in fig. 3), and the functional layer is the light-shielding layer 170; when the light-shielding layer 170 is omitted, the decorative film 100 does not have a light-shielding effect, and the reflective layer 160 is a functional layer (the structure of the decorative film 100 is shown in fig. 4); when the reflective layer 160 and the light-shielding layer 170 are omitted, the decorative film 100 does not have the reflective layer 160 and the light-shielding layer 170 (the structure of the decorative film 100 is shown in fig. 5). Alternatively, the adhesive layer 130, the release film 180, the reflective layer 160 and the light-shielding layer 170 are omitted at the same time, and in this case, the structure of the decorative film 100 is as shown in fig. 6; alternatively, both the adhesive layer 130 and the release film 180 are omitted together with one of the reflective layer 160 and the light-shielding layer 170.
Referring to fig. 1 to 8, a housing assembly according to an embodiment includes a housing 200 and any one of the decorative films 100. Wherein, a side of the first carrier layer 110 away from the color layer 120 can be attached to a surface of the housing 200.
For a decorative film 100 having an adhesive layer 130, the adhesive layer 130 disposed on the first carrier layer 110 can be adhered to the housing 200. When the decorative film 100 has the release film 180, the release film 180 is peeled off, and the adhesive layer 130 is adhered to the housing 200.
For the decorative film 100 without the adhesive layer 130, when the decorative film 100 is attached to the housing 200, the adhesive 300 is used to adhere the side of the first carrier layer 110 away from the color layer 120 to the housing 200 (as shown in fig. 9).
In one embodiment, the housing 200 is a transparent substrate. Specifically, the case 200 is a glass substrate or an organic substrate. The glass substrate may be glass having high strength and good light transmittance, such as aluminosilicate glass; the organic substrate is, for example, a PET substrate or a PC/PMMA composite plate ("/" indicates a layer), or the like. The transparent substrate may have a flat plate shape or a 3D structure.
In one embodiment, the housing 200 is a 3D transparent plate, and the housing 200 has an inner concave surface 210 and an outer convex surface 220 opposite to the inner concave surface 210. The side of the first carrier layer 110 away from the color layer 120 can be attached to the inner concave surface 210 of the housing 220. I.e., the adhesive layer 130 is adhered to the inner concave surface 210 of the housing 200.
The housing assembly has high production efficiency due to the use of the decorative film 100.
The electronic equipment of an embodiment includes a housing assembly, a display module and a circuit board. Wherein, the casing subassembly is above-mentioned casing subassembly. The display module is connected to the housing 200 and encloses with the housing 200 to form an accommodating cavity. The circuit board is arranged in the accommodating cavity. The shell assembly of the electronic equipment has high production efficiency, so that the electronic equipment also has high production efficiency.
The decorative film 100 is not limited to a case for decorating electronic equipment, and may be used in other fields requiring film decoration.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (12)

1. The utility model provides a decorate diaphragm, its characterized in that includes first bearer layer, colour layer, second bearer layer and texture layer, the material of first bearer layer is thermoplastic polyurethane elastomer, the colour layer sets up one side of first bearer layer is on the surface, the colour layer is the OCA glue film that has the colour, the material of second bearer layer is thermoplastic polyurethane elastomer, the second bearer layer sets up keeping away from on the colour layer one side of first bearer layer, the texture layer sets up keeping away from on the second bearer layer one side on colour layer, the material on texture layer is UV glues.
2. The decorative film of claim 1, wherein the first carrier layer has a thickness of 30 to 35 microns;
and/or the Shore hardness of the first bearing layer is 55A-65A;
and/or the surface tension of one side surface of the first bearing layer close to the color layer is more than 38 dynes.
3. The decorative film of claim 1, wherein the thickness of the second carrier layer is 30 to 35 microns;
and/or the Shore hardness of the second bearing layer is 65-80A;
and/or the surface tension of the surface of the second bearing layer close to the texture layer and the surface of the second bearing layer close to the color layer are both more than 38 dynes.
4. The decorative film of claim 1, wherein the texture layer has a micro-nano structure selected from at least one of a micro-lens structure, a cylindrical mirror structure, a fresnel lens structure, a CD pattern, and a small short line.
5. The decorative film of claim 1, further comprising a clear adhesive layer disposed on a side of said first carrier layer distal from said color layer.
6. The decorative film of claim 5, wherein said adhesive layer is made of OCA, hot melt adhesive or UV curable adhesive.
7. The decorative film according to any one of claims 1 to 6, further comprising a functional layer provided on a side of the grain layer remote from the second carrier layer, wherein the functional layer is at least one selected from a reflective layer and a light-shielding layer, and the reflective layer is made of metal.
8. The decorative film according to claim 7, wherein the functional layer comprises a reflective layer and a light-shielding layer, the reflective layer is disposed on a side of the texture layer away from the second carrier layer, and the light-shielding layer is disposed on a side of the reflective layer away from the texture layer.
9. The decorative film of claim 7, wherein the reflective layer is indium or tin.
10. A housing assembly, comprising a housing and the decorative film of any one of claims 1 to 9, wherein a side of the first bearing layer away from the color layer is capable of adhering to a surface of the housing.
11. The housing assembly of claim 10, wherein the housing is a 3D transparent plate, the housing has an inner concave surface, and a side of the first carrier layer away from the color layer can be attached to the inner concave surface.
12. An electronic device, comprising:
a housing assembly as claimed in any one of claims 10 to 11;
the display module is connected with the shell and forms an accommodating cavity together with the shell; and
the circuit board is arranged in the accommodating cavity.
CN201910668228.0A 2019-07-23 2019-07-23 Decorative membrane, shell assembly and electronic equipment Active CN110381688B (en)

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CN208369666U (en) * 2018-06-13 2019-01-11 深圳璐菲科技有限公司 One kind being based on transparent material thermal sensation colour fading protective shell
CN108673985A (en) * 2018-06-14 2018-10-19 广东昂斯新材料技术有限公司 A kind of color reflective material and preparation method thereof that band is textured
CN109130350A (en) * 2018-06-14 2019-01-04 广州易航电子有限公司 A kind of bend glass protective film and preparation method thereof
CN109016712A (en) * 2018-07-11 2018-12-18 广东东田转印新材料有限公司 A kind of light transmission diaphragm embedding note with light display color pattern and suitable mould

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