CN111800970A

CN111800970A - Electronic equipment shell, preparation method thereof and electronic equipment

Info

Publication number: CN111800970A
Application number: CN202010712378.XA
Authority: CN
Inventors: 邱惊龙
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2020-10-20
Anticipated expiration: 2040-07-22
Also published as: CN111800970B

Abstract

The application provides an electronic equipment shell, a preparation method thereof and electronic equipment, wherein the electronic equipment shell comprises: a housing body having opposing first and second surfaces; wherein, be equipped with on the first surface: the groove lines form a preset pattern; a matte region, an orthographic projection of the matte region and the groove line in a direction perpendicular to the first surface being free of an overlapping region. The electronic equipment shell simultaneously realizes the appearance effect of large-area anti-dazzle light and three-dimensional lines, provides more abundant, various and attractive appearance, can better meet the aesthetic requirements of users, and improves the user experience.

Description

Electronic equipment shell, preparation method thereof and electronic equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to an electronic equipment shell, a preparation method of the electronic equipment shell and electronic equipment.

Background

With the development of the technology, in addition to the interest in the use performance, people pay more attention to the appearance effect of the electronic device, and therefore, the development of more beautiful and diversified appearance effects of the electronic device is a hot issue in the field of the electronic device in recent years.

Content of application

The present application is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the application aims to provide a brain-equipped device shell capable of achieving large-area anti-glare and three-dimensional line appearance simultaneously, a preparation method of the brain-equipped device shell and electronic equipment.

In one aspect of the present application, an electronic device housing is provided. According to an embodiment of the present application, the electronic device case includes: a housing body having opposing first and second surfaces; wherein, be equipped with on the first surface: the groove lines form a preset pattern; a matte region, an orthographic projection of the matte region and the groove line in a direction perpendicular to the first surface being free of an overlapping region. The electronic equipment shell simultaneously realizes the appearance effect of large-area anti-dazzle light and three-dimensional lines, provides more abundant, various and attractive appearance, can better meet the aesthetic requirements of users, and improves the user experience.

In one aspect of the present application, a method of making an electronic device housing is provided. According to an embodiment of the application, the method comprises: roughening at least a part of the first surface of the shell body; forming a groove line on the roughened first surface to obtain the electronic equipment shell; the first surface which is subjected to the roughening treatment and is not provided with the groove lines forms a matte area, and the orthographic projections of the matte area and the groove lines in the direction perpendicular to the first surface do not have an overlapping area. The method has the advantages of simple steps, convenience in operation, no harsh requirements on technicians and equipment, easiness in implementation, and the obtained electronic equipment shell simultaneously realizes the appearance effects of large-area anti-dazzle light and three-dimensional lines, provides richer, diversified and attractive appearances, can better meet the aesthetic requirements of users, and improves the user experience.

In yet another aspect of the present application, an electronic device is provided. According to an embodiment of the present application, the electronic device includes: an electronic device housing defining an accommodating space, wherein the electronic device housing is the electronic device housing or the electronic device housing prepared by the method; the display screen is arranged in the accommodating space. The electronic equipment simultaneously realizes the appearance effect of large-area anti-dazzle light and three-dimensional lines, provides more abundant, various and attractive appearance, can better meet the aesthetic requirements of users, and improves the user experience.

Drawings

Fig. 1 is a schematic plan view of an electronic device housing according to an embodiment of the present application.

Fig. 2 is a schematic sectional view taken along line a-a in fig. 1.

Fig. 3 is a schematic cross-sectional view of an electronic device housing according to another embodiment of the present application.

Fig. 4 is a schematic plan view of an electronic device housing according to another embodiment of the present application.

Fig. 5 is a schematic cross-sectional view of an electronic device housing according to another embodiment of the present application.

Fig. 6 is a schematic cross-sectional structure diagram of an electronic device housing according to another embodiment of the present application.

Fig. 7 is a schematic cross-sectional view of an electronic device housing according to another embodiment of the present application.

Detailed Description

Embodiments of the present application are described in detail below. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the present disclosure. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.

In one aspect of the present application, an electronic device housing is provided. According to an embodiment of the present application, referring to fig. 1 and 2, the electronic device case 100 includes: a housing body 10 having opposing first and

second surfaces

11, 12; wherein, be equipped with on first surface 11: the groove lines 111, wherein the groove lines 111 form a predetermined pattern; a matte area 112, wherein there is no overlapping area in the orthographic projection of the matte area 112 and the groove lines 111 in the direction perpendicular to the first surface 11. The electronic equipment shell simultaneously realizes the appearance effect of large-area anti-dazzle light and three-dimensional lines, provides more abundant, various and attractive appearance, can better meet the aesthetic requirements of users, and improves the user experience.

Specifically, the specific material of the housing body may be selected according to the requirement, and specifically, the material may include, but is not limited to, glass, ceramic, sapphire, polymer, and the like. Further, the specific structure and shape of the housing body can also be selected according to actual needs, for example, the housing body can be a 2D structure, a 2.5D structure or a 3D structure,

specifically, the inner wall surface of the groove line may be a rough surface. Therefore, the three-dimensional line effect can be realized, the anti-dazzle and frosting effects can be realized, the two effects coexist, and the abundant and diversified appearances can be realized. Further, the surface roughness of the inner wall surface of the groove line is substantially the same as the surface roughness of the matte region. Therefore, the anti-glare and frosting effects can be relatively consistent, and the appearance attractiveness can be improved.

Specifically, the surface roughness of the inner wall surface of the groove line may be 100 to 1000nm (e.g., 100nm, 200nm, 300nm, 400nm, 500nm, 600nm, 700nm, 800nm, 900nm, 1000nm, etc.); the matte region may have a surface roughness of 100 to 1000nm, for example, 100nm, 200nm, 300nm, 400nm, 500nm, 600nm, 700nm, 800nm, 900nm, 1000nm, etc.). Within the roughness range, the anti-dazzle effect is better, and the processing and the preparation are facilitated.

Specifically, the haze of the inner wall surface of the groove line may be 20% to 80% (e.g., 20%, 30%, 40%, 50%, 60%, 70%, 80%, etc.); the haze of the matte region may be 20% to 80% (e.g., 20%, 30%, 40%, 50%, 60%, 70%, 80%, etc.). Within the range of haze, the appearance effect is better, and the processing realization is facilitated.

In some embodiments, the groove line width W may be 0.3-2 mm, specifically 0.3mm, 0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, etc.; the depth h may be 0.02 to 0.05mm (e.g., 0.02mm, 0.025mm, 0.03mm, 0.035mm, 0.04mm, 0.045mm, 0.05mm, etc.). Within the line width range, the three-dimensional effect can be better shown, and within the depth range, the depth can be reduced while the three-dimensional effect is effectively presented, so that the ash hiding problem can be optimized.

It will be appreciated that the groove lines may form a predetermined pattern, and the specific pattern shape may be flexibly selected according to the appearance effect to be achieved, for example, including but not limited to line patterns (such as straight lines, curved lines, straight lines or combinations thereof, etc.), geometric patterns (such as circles, polygons or irregular shapes, etc.), object patterns (such as animal and plant patterns, architectural patterns, etc.), and the like. In one embodiment, referring to fig. 1, the groove lines form a line pattern, thereby realizing an appearance effect having a future feeling and a technological feeling.

Specifically, referring to fig. 3, the line groove 111 may have a U-shaped cross section. From this, less degree of depth can have stronger third dimension, does benefit to the mechanical strength who improves the casing body, can optimize simultaneously and hide grey problem.

It can be understood that, on the first surface of the housing body, the region except for the portion where the groove line is formed may entirely constitute the matte region, or may only partly constitute the matte region, and the matte region may be a continuous region, or may include a plurality of spaced regions, which may be specifically designed and selected according to actual needs.

Specifically, referring to fig. 4, the first surface 11 may further include a smooth surface area 113, and an orthogonal projection of the smooth surface area 113 in a direction perpendicular to the first surface 11 does not have an overlapping area with an orthogonal projection of the matte surface area 112 and the groove line 111 in the direction perpendicular to the first surface 11. Therefore, the electronic equipment shell can realize the appearance effect of coexistence of the light sub-effect and the three-dimensional lines. In some embodiments, identification information of the electronic device, etc. may be formed in the plain area. Therefore, the identification information with the highlight effect can be realized, and the appearance attractiveness of the electronic equipment shell is further improved.

It is understood that the first surface of the housing body may be entirely formed with the smooth surface region, or may be only partially formed with the smooth surface region, except for the portion where the groove line is formed and the matte surface region, and the smooth surface region may be a continuous region or may include a plurality of spaced regions.

Further, the distribution of the smooth surface area and the fog surface area can be selected according to actual needs, for example, the fog surface area and the smooth surface area are both a continuous area, and the fog surface area and the smooth surface area are distributed in the length direction, the width direction or the oblique direction of the shell body; one of the matte area and the smooth area can be a continuous area, the other area comprises a plurality of spaced areas, and the plurality of spaced areas can be distributed on one side, two sides, four sides and the like of the continuous area; of course, the fog surface area and the smooth surface area may include a plurality of areas arranged at intervals, the fog surface areas and the smooth surface areas may be alternately distributed, or the fog surface areas and the smooth surface areas may be arranged according to a predetermined pattern, and the fog surface areas may be arranged according to a predetermined pattern.

In some embodiments, referring to fig. 5, the electronic device housing may further include: a decorative film layer 20, the decorative film layer 20 being disposed on the second surface 12 of the housing body 10. From this, through the outward appearance effect stack decoration rete of casing body, can realize more three-dimensional colorful outward appearance effect.

In some embodiments, referring to fig. 6, the decorative film layer may include a first film layer 40 and a second film layer 30 arranged in a stack, wherein the first film layer 40 includes a first substrate 41 and a thermal transfer layer 42 disposed on the first substrate 41; the second film layer 30 comprises a second base material 31, and a UV transfer layer 31, a coating layer 32 and an ink layer 33 which are stacked on the second base material 30. From this, through the decorative effect of double-deck diaphragm, combine the regional and recess lines of matte on the casing body, can realize three-dimensional colorful outward appearance effect.

In particular, the thermal transfer layer may be a thermal transfer ribbon, which may provide the housing with different colors, in particular may comprise a plurality of differently colored regions. Therefore, the colorful appearance effect can be realized, and the attractiveness and the user experience of the shell are improved. In some embodiments, the thickness of the thermal transfer layer may be 2 to 5 micrometers, such as 2 micrometers, 3 micrometers, 4 micrometers, 5 micrometers, and the like. Within the thickness range, the shell can be provided with a proper color effect, and the problems of cracking, poor color development and the like caused by over-thickness or over-thinness are avoided.

Specifically, the UV transfer layer may be printed and cured using UV ink, and may be configured with a predetermined texture, pattern, etc. to provide the shell with a corresponding texture and pattern appearance effect. In some embodiments, the thickness of the UV transfer layer can be 5 to 20 microns, such as 5 microns, 6 microns, 7 microns, 8 microns, 9 microns, 10 microns, 11 microns, 12 microns, 13 microns, 14 microns, 15 microns, 16 microns, 17 microns, 18 microns, 19 microns, 20 microns, and the like. Within the thickness range, a better decorative effect can be realized, and the attractiveness and the user experience of the shell are improved.

It is understood that, referring to fig. 5, the plating layer may include a first oxide layer, a metal layer, a second oxide layer, and a third oxide layer, which are sequentially stacked. Further, the material of the first oxide layer may be aluminum oxide, the material of the metal layer may be indium, the material of the second oxide layer may be aluminum oxide, and the material of the third oxide layer may be titanium pentoxide. The indium layer mainly plays a role in reflection, saturation and brightness of the color of the shell can be effectively improved, the aluminum oxide layer mainly plays a role in protecting the indium layer, the indium layer is prevented from being conductive, meanwhile, the indium can be prevented from being oxidized, and the reflection effect is reduced.

In some embodiments, the first oxide layer can have a thickness of 0.005 to 0.011 micrometers, such as 0.005 micrometers, 0.006 micrometers, 0.007 micrometers, 0.008 micrometers, 0.009 micrometers, 0.01 micrometers, 0.011 micrometers, and the like; the thickness of the metal layer can be 0.01 to 0.0451 micrometers, such as 0.01 micrometer, 0.012 micrometer, 0.015 micrometer, 0.018 micrometer, 0.02 micrometer, 0.022 micrometer, 0.025 micrometer, 0.028 micrometer, 0.03 micrometer, 0.032 micrometer, 0.035 micrometer, 0.038 micrometer, 0.04 micrometer, 0.042 micrometer, 0.045 micrometer, 0.0451 micrometer and the like; the thickness of the second oxide layer may be 0.02-0.031 micrometer, such as 0.02 micrometer, 0.022 micrometer, 0.025 micrometer, 0.028 micrometer, 0.03 micrometer, 0.031 micrometer, etc.; the thickness of the third oxide layer may be 0.015 to 0.021 micrometer, and specifically, 0.015 micrometer, 0.016 micrometer, 0.017 micrometer, 0.018 micrometer, 0.019 micrometer, 0.02 micrometer, 0.021 micrometer and the like. Each layer structure is in above-mentioned thickness range, can be better mutually support for the casing has bright-colored, the saturation is high, the big outward appearance effect of luminance of colour. The metal layer mainly plays a role in reflection, the color of the thermal transfer layer can be more attractive and attractive, the thicker the thickness of the metal layer is, the higher the color brightness of the thermal transfer layer is, the metal layer is within the thickness range, the better the reflection effect is, the insufficient reflection amount caused by the excessively thin thickness cannot be generated, and the oxidation is easy caused by the excessively thick thickness. Specifically, the ink layer may have a single-layer structure or a multi-layer structure. In some embodiments, the ink layer may include a plurality of ink layers stacked one on another, and specifically may include three ink layers, and each ink layer may have a thickness of 2 to 8 micrometers, specifically, 2 micrometers, 3 micrometers, 4 micrometers, 5 micrometers, 6 micrometers, 7 micrometers, 8 micrometers, and the like. Thus, the shell can be provided with a proper ground color, and the shell is not too thick and is easy to fall off or crack. And the color of the ink layer may be selected according to the appearance effect to be achieved, and may include, but is not limited to, black humor, white ink, and the like, for example.

According to an embodiment of the present invention, referring to fig. 7, a first adhesive layer 50 may be disposed between the first film layer 40 and the second film layer 30, and a second adhesive layer 60 may be disposed between the case body 10 and the decorative film layer 20. Specifically, the specific material of the bonding layer can be optical adhesive, so that the transparency is good, and the bonding force is strong.

It is understood that the specific roughening treatment can be performed by sand blasting, etching, laser etching, and the like. In some embodiments, the roughening may be performed by an etching process (e.g., frosting). Therefore, the operation is simple and convenient, the industrial production is easy, the surface roughness of the surface of the shell body subjected to the roughening treatment can be flexibly adjusted and controlled, and the obtained roughened surface has good quality. In some specific embodiments, the casing body may be made of glass, and at this time, etching liquid containing hydrofluoric acid may be used to etch the casing body to achieve roughening treatment, and specific etching liquid composition, amount, etching temperature, time, and the like may be selected according to the surface roughness to be achieved, which is not described in detail herein.

Specifically, before forming the groove lines, water-soluble protective oil can be formed on the shell body without forming the groove lines, so that the ink on the second surface is prevented from polluting the first surface and influencing the effect of the groove lines on the first surface.

Specifically, forming the groove line may include: carrying out first frosting treatment on a first surface of the groove line to be formed; chemically polishing the first surface subjected to the first frosting treatment; and carrying out second frosting treatment on the first surface subjected to the chemical polishing. The line etching process of firstly frosting and then chemically polishing can realize personalized line design and simultaneously maintain depth sense and stereoscopic sense, stronger stereoscopic sense can be presented by smaller etching depth, and meanwhile, the problem of dust hiding can be optimized by smaller etching depth.

Specifically, the first frosting treatment and the second frosting treatment may be performed by the following steps: the shell body to be subjected to frosting treatment is placed on the conveying device, then the frosting liquid is sprayed onto the shell body through the spray head while the shell body is conveyed, and the spray head can swing in the direction perpendicular to the conveying direction.

In some embodiments, the first frosting water jet speed (i.e., the speed at which the spray head swings in a direction perpendicular to the conveying direction) of the first frosting process is 1.5-3.5m/min (e.g., 1.5m/min, 2m/min, 2.5m/min, 3m/min, 3.5m/min, etc.); the first frosting speed (i.e., the conveying speed) of the first frosting treatment is 1.2 to 3.5m/min (e.g., 1.2m/min, 1.5m/min, 1.8m/min, 2m/min, 2.2m/min, 2.5m/min, 2.8m/min, 3m/min, 3.2m/min, 3.5m/min, etc.). Too fast speed, easy sand-proof, too slow speed, high roughness and reduced productivity,

specifically, the surface roughness of the first surface after the first frosting treatment is 100 to 200nm (for example, 100nm, 110nm, 120nm, 130nm, 140nm, 150nm, 160nm, 170nm, 180nm, 190nm, 200nm, etc.). Therefore, the groove lines can be better matched with the subsequent steps, and the groove lines with smaller etching depth and stronger stereoscopic impression can be obtained. Specifically, the chemical polishing may be performed using a mixed solution of hydrofluoric acid and sulfuric acid, and specifically, the acid concentration of the polishing solution used for the chemical polishing may be 4 to 6% (e.g., 4%, 4.2%, 4.5%, 4.8%, 5%, 5.2%, 5.5%, 5.8%, 6%, etc.); the temperature of the chemical polishing can be 30 +/-2 ℃; the chemical polishing speed (i.e., transport speed) is 1 to 3.5m/min (e.g., 1m/min, 1.5m/min, 2m/min, 2.5m/min, 3m/min, 3.5m/min, etc.).

It can be understood that the mass ratio of water in the second frosting liquid to the frosting powder adopted in the second frosting treatment is 7: 25; the curing temperature of the second frosting solution is 55 +/-3 ℃, and the curing time is 48 +/-5 hours; the second frosting water jet speed of the second frosting treatment is 1.5-3.5m/min (such as 1.5m/min, 2m/min, 2.5m/min, 3m/min, 3.5m/min and the like); the second frosting speed of the second frosting treatment is 1.2-3.5m/min (such as 1.2m/min, 1.5m/min, 1.8m/min, 2m/min, 2.2m/min, 2.5m/min, 2.8m/min, 3m/min, 3.2m/min, 3.5m/min, etc.); the second frosting temperature of the second frosting treatment is 30 +/-2 ℃.

It is understood that each of the first and second frosting treatments independently comprises a pretreatment step including acid washing, first water washing, second water washing and third water washing sequentially, wherein the temperature of the acid washing and the first water washing are each independently 28 ± 5 ℃, and the temperature of the second water washing and the third water washing are each independently 12 ± 5 ℃. Therefore, the surface of the shell body can be effectively cleaned, the shell body is firstly subjected to acid washing and water washing at a higher temperature, the cleaning effect can be improved, a cleaner surface can be obtained, then the shell body is subjected to water washing at a lower temperature, and a more appropriate etching speed can be obtained in subsequent steps while the residual solution can be removed.

Specifically, in the process of forming the groove lines by etching, a yellow light process can be adopted, wherein the photoresist ink can be positive photoresist ink, the resolving power of the positive photoresist ink is superior to that of the negative photoresist ink, and the etching precision is better. Specifically, the positive resist ink is an organic solvent containing a photosensitive material and a phenol resin, and is an insoluble base, but becomes a soluble base upon irradiation with light, and therefore, can be used for pattern development using an alkaline solvent.

It is understood that the method may further comprise: forming a decorative film layer on a second surface of the housing body, wherein the second surface is disposed opposite to the first surface. From this, through the stack and the cooperation of casing body and decoration rete, can realize more three-dimensional colorful outward appearance effect.

Specifically, the decorative film layer may be directly formed on the second surface of the housing body, or the film layer having a decorative effect may be formed on the substrate in advance, and then the obtained film sheet is attached to the second surface of the housing body.

In some embodiments, forming the decorative film layer includes: forming a thermal transfer printing layer on a first substrate to obtain a first film layer; forming a UV transfer printing layer, a coating layer and an ink layer which are arranged in a laminated manner on a second base material to obtain a second film layer; and adhering the first film layer and the second film layer together to obtain the decorative film layer.

The first substrate and the second substrate may be polymer films, such as PET films, but not limited thereto. The first substrate and the second substrate may be further provided with a primer according to use requirements, so as to improve the use performance of the first substrate and the second substrate, for example, enhance the bonding force between the first substrate and the second substrate and other film layers disposed thereon.

Specifically, the ribbon thermal transfer printing can be controlled by a computer program to transfer different color effects in different areas, the ribbon thermal transfer printing has high requirements on the environment and needs to be carried out in a hundred-level dust-free environment, otherwise, the environment dust falls to cause serious white spots and bright spots to be bad, and other steps and parameters of the thermal transfer printing can be selected according to the requirements without excessive limitation. It is understood that the first film layer obtained after the thermal transfer may need to be stored, transported, and the like in an actual production process, and thus a protective layer may be coated on the first film layer as needed to protect the thermal transfer layer.

It can be understood that in the process of preparing the second film layer, the UV transfer printing layer can be formed by a conventional UV transfer printing process, the coating layer can be formed by an electron gun coating process, the ink layer can be formed by a screen printing process, and the specific steps and parameters of the UV transfer printing, the electron gun coating and the screen printing can be adjusted as required. It will be appreciated that the resulting second film layer may need to be stored, transported, etc. during actual production, and therefore a protective layer may be applied over the second film layer as desired.

After the first film layer and the second film layer are obtained, the first film layer and the second film layer may be bonded together, for example, the first film layer and the second film layer may be bonded using an optical adhesive layer, and specifically, the thermal transfer layer may be bonded to the second substrate. Further, an adhesive layer may be formed on at least one of the thermal transfer layer and the second substrate, followed by alignment bonding, de-foaming, ink layer protection film coating, and laser finishing (including, but not limited to, final sizing, including opening, etc.) in sequence. In the laminating step, first rete and second rete all need reserve the target and be used for double-deck laminating counterpoint, and some embodiments can guarantee that the laminating counterpoint precision accomplishes within 0.2 mm.

Then, the obtained decoration film layer can be attached to the second surface of the shell body in a bonding mode, specifically, a bonding layer can be formed on at least one of the first substrate and the second surface of the shell body, and then the decoration film layer and the second surface of the shell body are attached in an alignment mode to obtain the shell with rich appearance.

It can be understood that the specific type of the electronic device is not particularly limited, and may be a mobile phone, a tablet computer, a game machine, a wearable device, and the like, and besides the electronic device housing described above, the electronic device may further include necessary structures and components of a conventional electronic device, and for example, the mobile phone may further include a touch module, a battery, a motherboard, a camera module, a storage, and the like, which are not described herein again.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. An electronic device housing, comprising:

a housing body having opposing first and second surfaces;

wherein, be equipped with on the first surface:

the groove lines form a preset pattern;

a matte region, an orthographic projection of the matte region and the groove line in a direction perpendicular to the first surface being free of an overlapping region.

2. The electronic device casing according to claim 1, wherein an inner wall surface of the groove line is a rough surface.

3. The electronic device casing according to claim 1, wherein a surface roughness of an inner wall surface of the groove line is substantially the same as a surface roughness of the matte region.

4. The electronic device enclosure of claim 1, wherein at least one of the following conditions is satisfied:

the surface roughness of the inner wall surface of the groove line is 100-1000 nm;

the surface roughness of the matte area is 100-1000 nm;

the haze of the inner wall surface of the groove line is 20% -80%;

the haze of the matte area is 20% -80%;

the cross section of the groove line is U-shaped.

5. The electronic device casing of claim 1, wherein the groove line satisfies at least one of the following conditions:

the line width is 0.3-2 mm;

the depth is 0.02-0.05 mm.

6. The electronic device housing of claim 1, wherein the first surface further comprises a smooth surface area, and an orthographic projection of the smooth surface area in a direction perpendicular to the first surface has no overlapping area with an orthographic projection of the matte surface area and the groove line in a direction perpendicular to the first surface.

7. The electronic device case of any of claims 1-6, further comprising:

and the decorative film layer is arranged on the second surface of the shell body.

8. The electronic device housing of claim 7, wherein the decorative film layer comprises a first film layer and a second film layer arranged in a stack, wherein the first film layer comprises a first substrate and a thermal transfer layer arranged on the first substrate; the second film layer comprises a second base material, and a UV transfer printing layer, a coating layer and an ink layer which are stacked on the second base material.

9. The electronic device housing of claim 8, wherein the decorative film layer satisfies at least one of the following conditions:

the thickness of the thermal transfer layer is 2-5 microns;

the thickness of the UV transfer printing layer is 5-20 micrometers;

the coating layer comprises a first oxide layer, a metal layer, a second oxide layer and a third oxide layer which are sequentially stacked;

the first oxide layer is made of aluminum oxide, the metal layer is made of indium, the second oxide layer is made of aluminum oxide, and the third oxide layer is made of trititanium pentoxide;

the thickness of the first oxide layer is 0.005-0.011 micrometers; the thickness of the metal layer is 0.01-0.0451 micrometers; the thickness of the second oxide layer is 0.02-0.031 micrometer; the thickness of the third oxide layer is 0.015-0.021 micrometer;

the printing ink layer comprises a plurality of ink layers which are stacked, and the thickness of each ink layer is 2-8 microns.

10. A method of making an electronic device housing, comprising:

roughening at least a part of the first surface of the shell body;

forming a groove line on the roughened first surface to obtain the electronic equipment shell;

the first surface which is subjected to the roughening treatment and is not provided with the groove lines forms a matte area, and the orthographic projections of the matte area and the groove lines in the direction perpendicular to the first surface do not have an overlapping area.

11. The method of claim 10, wherein forming the groove line comprises:

carrying out first frosting treatment on a first surface of the groove line to be formed;

chemically polishing the first surface subjected to the first frosting treatment;

and carrying out second frosting treatment on the first surface subjected to the chemical polishing.

12. The method of claim 11, wherein at least one of the following conditions is satisfied:

the first frosting water jet speed of the first frosting treatment is 1.5-3.5 m/min;

the first frosting speed of the first frosting treatment is 1.2-3.5 m/min;

the acid concentration of the polishing solution adopted by the chemical polishing is 4-6%;

the temperature of the chemical polishing is 30 +/-2 ℃;

the chemical polishing speed is 1-3.5 m/min;

the surface roughness of the first surface after the first frosting treatment is 100-200 nm;

the mass ratio of water in the second frosting liquid to frosting powder adopted by the second frosting treatment is 7: 25;

the curing temperature of the second frosting solution is 55 +/-3 ℃, and the curing time is 48 +/-5 hours;

the second frosting water jet speed of the second frosting treatment is 1.5-3.5 m/min;

the second frosting speed of the second frosting treatment is 1.2-3.5 m/min;

the second frosting temperature of the second frosting treatment is 30 +/-2 ℃.

13. The method according to claim 11, wherein each of the first and second frosting treatments is preceded by a pretreatment step comprising an acid wash, a first water wash, a second water wash and a third water wash performed sequentially, wherein the acid wash and the first water wash are each independently at a temperature of 28 ± 5 ℃ and the second water wash and the third water wash are each independently at a temperature of 12 ± 5 ℃.

14. The method of claim 10, further comprising:

forming a decorative film layer on a second surface of the housing body, wherein the second surface is disposed opposite to the first surface.

15. An electronic device, comprising:

an electronic device housing defining an accommodating space, wherein the electronic device housing is the electronic device housing of any one of claims 1 to 9 or the electronic device housing prepared by the method of any one of claims 10 to 14;

the display screen is arranged in the accommodating space.