CN110708906A - Shell, preparation method and electronic equipment - Google Patents

Abstract

The present application discloses a casing, a preparation method, and an electronic device. The housing includes: a glass base, the glass base includes a main body, the outer surface of the main body has a concave part and a flat part, the flat part is composed of a plurality of first strip parts and a plurality of second strips arranged in a staggered manner The concave part is located in the area other than the plane part, wherein a plurality of the first strip-shaped parts are arranged in parallel, a plurality of the second strip-shaped parts are arranged in parallel, and the first strip-shaped part is arranged in parallel. The width of the second strip portion gradually increases along its extension direction, and the width of the second strip portion gradually increases along its extension direction. As a result, the casing has the appearance effect of matte and smooth gradients, and at the same time has a good hand feeling.

Description

Housing and preparation method, electronic device

technical field

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

Background technique

With the development of electronic equipment manufacturing technology, people have higher and higher requirements for the appearance of electronic equipment. At present, in order to improve the appearance effect of the electronic device, the housing of the electronic device is made into the effect of coexistence of a matte surface and a smooth surface, so that the appearance effect of the electronic device is significantly improved.

However, the current housing, preparation method, and electronic device still need to be improved.

Application content

This application is made based on the inventor's discovery and knowledge of the following facts and problems:

At present, the case with the coexistence effect of the matte surface and the glossy surface has the problem of poor hand feeling, and the appearance effect needs to be improved. The inventors found that this is mainly due to the insufficient optimization of the current structure of the outer surface of the casing. It can be understood by those skilled in the art that by using frosting treatment to etch the outer surface of the glass shell, the glass shell can achieve a frosted effect. The inventors found that at present, when making a shell with the coexistence effect of a matte surface and a glossy surface, it is only simple to use a protective ink to protect a certain area of the glass shell (the area that realizes the glossy surface effect), and then perform frosting treatment. When the protective ink is not printed on the outer surface of the glass shell, the area on the outer surface of the glass shell that is not printed with the protective ink will be etched by the frosting liquid to form pits in this area, and the area with the protective ink printed on the outer surface of the glass shell will not be engraved because it is covered by the protective ink. etched, so that the glass shell obtains the effect of the coexistence of the matte surface and the glossy surface. However, the above-mentioned glass shell has the following defects: 1. The depth of etching during frosting is about 0.08mm, so that a height difference of 0.08mm will be formed between the smooth surface and the matte surface, and users will scratch their hands when using it. Feel, affect the feel. 2. A certain area of the shell is a glossy surface, and the remaining area is a matte surface, which makes the matte surface and the glossy surface transition directly, resulting in no visual beauty of gradual transition, which affects the appearance effect.

The present application seeks to alleviate or solve at least one of the above-mentioned problems to at least some extent.

In one aspect of the application, the application proposes a housing. The housing includes: a glass base, the glass base includes a main body, the outer surface of the main body has a concave part and a flat part, the flat part is composed of a plurality of first strip parts and a plurality of second strips arranged in a staggered manner The concave part is located in the area other than the plane part, wherein a plurality of the first strip-shaped parts are arranged in parallel, a plurality of the second strip-shaped parts are arranged in parallel, and the first strip-shaped part is arranged in parallel. The width of the second strip portion gradually increases along its extension direction, and the width of the second strip portion gradually increases along its extension direction. As a result, the casing has the appearance effect of matte and smooth gradients, and at the same time has a good hand feeling.

In another aspect of the present application, the present application proposes a method of manufacturing a housing. The method includes: preparing a glass base blank, the glass base blank comprising a main body; printing protective ink on a predetermined area and the entire inner surface of the outer surface of the glass base blank to form an ink layer, the outer surface of the main body has The predetermined area, the predetermined area is a pattern formed by a plurality of first strip-shaped parts and a plurality of second strip-shaped parts arranged in a staggered manner, a plurality of the first strip-shaped parts are arranged in parallel, and a plurality of the The second strip-shaped parts are arranged in parallel, the width of the first strip-shaped part gradually increases along its extending direction, and the width of the second strip-shaped part gradually increases along its extending direction; The glass base blank is frosted to form depressions in portions other than the predetermined area, thereby forming a glass base. As a result, a case with matte and smooth gradient effects and good hand feeling can be obtained by a simple method.

In another aspect of the present application, the present application proposes an electronic device. The electronic device includes: a casing, the casing is as described above; a main board and a display screen, the main board and the display screen are arranged on the inner side of the casing, and the main board is arranged on the casing and the display screen. Therefore, the electronic device has all the features and advantages of the casing described above, which will not be repeated here. Overall, the electronic device has a matte and glossy gradient appearance while having a good feel.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of examples taken in conjunction with the accompanying drawings, wherein:

FIG. 1 shows a schematic structural diagram of a housing according to an example of the present application;

FIG. 2 shows a schematic structural diagram of a casing according to another example of the present application;

FIG. 3 shows a schematic structural diagram of a first bar-shaped portion and a second bar-shaped portion according to an example of the present application;

FIG. 4 shows a schematic structural diagram of a housing according to an example of the present application;

FIG. 5 shows a schematic flowchart of a method for preparing a shell according to an example of the present application;

FIG. 6 shows a schematic structural diagram of a silicone rubber tip according to an example of the present application;

FIG. 7 shows a schematic structural diagram of an electronic device according to an example of the present application.

Description of reference numbers:

100: glass base; 110: main body; 120: side wall; 10: recessed part; 20: flat part; 21: first strip part; 22: second strip part; 1: first side; 2: second side; 3: third side; 4: fourth side; 200: decorative diaphragm; 300: silicone rubber tip; 1000: shell.

Detailed ways

The following describes in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but should not be construed as a limitation on the present application.

In one aspect of the application, the application proposes a housing. In some examples of the present application, referring to FIG. 1 , the housing includes: a glass base 100 , the glass base 100 includes a main body 110 , and the outer surface of the main body 110 has a concave portion 10 and a flat portion 20 , and the flat portion 20 is composed of staggered A plurality of first bar-shaped portions 21 and a plurality of second bar-shaped portions 22 are formed, and the recessed portion 10 is located in an area other than the plane portion 20 (refer to FIG. 2 ). The second strip-shaped parts 22 are arranged in parallel, the width of the first strip-shaped part 21 gradually increases along the extending direction thereof, and the width of the second strip-shaped part 22 gradually increases along the extending direction thereof. As a result, the casing has the appearance effect of matte and smooth gradients, and at the same time has a good hand feeling.

In order to facilitate understanding, the following first briefly describes the principle that the housing of the present application realizes the gradient effect of the matte surface and the smooth surface, and at the same time improves the feel:

The outer surface of the glass substrate of the present application has a plane portion and a concave portion. By designing the plane portion and the concave portion, specifically, the plane portion is composed of a plurality of first strip portions and a plurality of second strip portions arranged in a staggered manner. , a plurality of first strip parts are arranged in parallel, a plurality of second strip parts are arranged in parallel, the width of the first strip part gradually increases along its extending direction, and the width of the second strip part gradually increases along its extending direction , and the concave part is located in the area other than the plane part, so that the plane part and the concave part realize a gradual transition, that is, the gradual transition between the smooth surface and the matte surface is realized, so that the shell can obtain the appearance effect of the gradual change of the fog surface and the smooth surface. The concave part gradually transitions, which can effectively alleviate the problem of hand scraping and improve the feel of the shell.

Each structure of the housing will be described in detail below according to specific examples of the present application:

In some examples of the present application, the concave portion 10 may be formed by frosting the glass substrate, the transmittance of the concave portion 10 is smaller than that of the flat portion 20 , and the shell exhibits a fog effect in the concave portion area. , a smooth surface effect is presented in the area of the plane part, so that the shell can present the appearance effect of a matte surface and a smooth surface gradient.

In some examples of the present application, referring to FIG. 1 , the glass substrate 100 further includes a sidewall 120 connected to the main body 110 , the outer surface of the sidewall 120 has a recessed portion 10 and a flat portion 20 , and the outer surface of the sidewall 120 is The upper flat portion 20 may be a portion of the main body 110 extending from the flat portion 20 to the side wall 110 , which will not be repeated here. In this way, the side wall of the casing can also obtain a matte and smooth appearance, which further beautifies the appearance of the casing.

It should be noted that the flat portion 20 in the present application should be understood in a broad sense, and it does not only refer to the flat portion. The flat portion 20 in the present application refers to the area on the outer surface of the main body except the recessed portion 10, and the outer surface of the side wall except the recessed portion. The area other than the part 10, that is, the plane part 20 at the main body has the same curvature as the main body, and the plane part 20 at the side wall has the same curvature as the side wall.

In some examples of the present application, referring to FIG. 3 , the first strip portion 21 is composed of a first side 1 and a second side 2 , and the included angle between the first side 1 and the second side 2 (as shown in FIG. 3 ) β) shown can be 1-60 degrees, such as 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, by Therefore, the width of the first strip portion can be gradually increased along the extending direction thereof.

The second strip portion 22 is composed of a third side 3 and a fourth side 4, and the included angle (γ as shown in FIG. 3 ) between the third side 3 and the fourth side 4 may be 1-60 degrees, Such as 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, thus, the width of the second strip portion can be realized along the Its extension direction increases gradually.

In some examples of the present application, the gradient angle β of the first strip portion 21 (that is, the angle between the first side and the second side), and the gradient angle γ of the second strip portion 22 (that is, the third side) and the fourth side) can be equal. As a result, the effect of matte and glossy gradients can be further optimized.

)可以为1-90度，如10度、20度、30度、40度、50度、60度、70度、80度、90度。由此，第一条形部和第二条形部可以实现交错排布，多个第一条形部和多个第二条形部围成的区域为凹陷部(参考图2)，且第一条形部和第二条形部的宽度分别沿其延伸方向逐渐增大，从而可实现凹陷部和平面部的逐渐过渡，使得壳体获得雾面和光面渐变的效果，同时提升壳体的手感。In some examples of the present application, the included angle between the extension direction of the first strip part 21 and the extension direction of the second strip part 22 (as shown in FIG. 3 )

) can be 1-90 degrees, such as 10 degrees, 20 degrees, 30 degrees, 40 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees, 90 degrees. In this way, the first strip-shaped parts and the second strip-shaped parts can be staggered, and the area enclosed by the plurality of first strip-shaped parts and the plurality of second strip-shaped parts is a concave part (refer to FIG. 2 ), and the The widths of the strip portion and the second strip portion are gradually increased along their extending directions, so that a gradual transition between the concave portion and the surface portion can be realized, so that the shell can obtain a matte and smooth gradient effect, and at the same time improve the feel of the shell .

In some examples of the present application, since the width of the first strip portion 21 and the width of the second strip portion 22 gradually increase in the respective extending directions, the first strip portion and the second strip portion The cross-sectional area of the concave portion enclosed by the slack portion also shows a certain regular gradient. Specifically, the cross-sectional area of the concave portion gradually decreases along the extending direction of the first strip portion and the second strip portion (refer to FIG. 2 ). ), so that the shell can present various gradient effects, and the smooth surface and the matte surface cooperate with each other to further enrich the appearance effect of the shell.

In some examples of the present application, the plurality of first strip-shaped parts 21 are arranged in parallel, so that the first sides of the plurality of first strip-shaped parts are respectively parallel, and the second sides of the plurality of first strip-shaped parts are respectively parallel. are also parallel. Referring to FIG. 3 , in two adjacent first strip portions 21 , the distance between the corresponding sides (D1 as shown in the figure) may be 0.001-10mm, such as 0.5mm, 1mm, 2mm, 3mm , 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm. Specifically, in two adjacent first strip portions 21 , the distance between the two first sides 1 and the distance between the two second sides 2 are respectively 0.001-10 mm. Thereby, the plurality of first strip portions can be arranged side by side.

从而可以限定出凹陷部。Similarly, the plurality of second bar-shaped portions 22 are arranged in parallel, whereby the third sides of the plurality of second bar-shaped portions are respectively parallel, and the fourth sides of the plurality of second bar-shaped portions are also parallel respectively. Referring to FIG. 3 , in two adjacent second strip portions 22 , the distance between the corresponding sides (D2 as shown in the figure) may be 0.001-10mm, such as 0.5mm, 1mm, 2mm, 3mm , 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm. Specifically, in the two adjacent second strip portions 22 , the distance between the two third sides 3 and the distance between the two fourth sides 4 are respectively 0.001-10 mm. In this way, the plurality of second bar-shaped portions can be arranged side by side, and there are included angles between the plurality of side-by-side first bar-shaped portions and the plurality of side-by-side second bar-shaped portions respectively.

Thereby, a recessed portion can be defined.

In some examples of the present application, the distance D1 between corresponding sides in two adjacent first strip parts 21 may be equal to the distance D2 between corresponding sides in two adjacent second strip parts 22 . Thereby, the gradient effect of the shell can be further optimized.

The specific form of the gradation of the concave and flat parts is not particularly limited, for example, the concave and flat parts are gradually gradated up and down, so that the shell obtains the effect of the matte surface and the smooth surface. The body obtains the effect of left and right gradients between the matte and glossy surfaces, or the concave and flat surfaces are diagonally gradient, so that the shell obtains the effect of diagonal gradients between the matte and glossy surfaces, or, the depressions and flat surfaces are in the center and around the gradient. Makes the shell get the effect of gradient between the center and the surrounding of the fog surface and the glossy surface.

In some examples of the present application, referring to FIG. 1 , the bending angle (α as shown in FIG. 1 ) between the side wall 120 and the plane of the main body 110 may be greater than 70 degrees, such as 90 degrees, 100 degrees, 120 degrees Spend. Therefore, the glass base body has a relatively large arc, and the glass base body has an integrated structure, which can save the additionally arranged structure such as a middle frame, and has a good texture.

It should be noted that the term "bending angle" in this application refers to the angle between the side wall and the main body (α as shown in Fig. 1 ), specifically, the angle between the side wall and the plane of the main body. angle between. In some examples of the present application, the main body 110 of the glass substrate 100 may be a flat surface, or may also be a curved surface. When the main body 110 is an arc surface as a whole, the plane where the main body is located is the plane where the tangent to the highest point of the convexity of the main body 110 is located. The side wall 120 can also be a plane or an arc surface. When the outer surface of the side wall 120 is an arc surface, the maximum value of the angle between the tangent at any point on the outer surface of the side wall 120 and the plane where the main body 110 is located is the maximum value of the angle. The bend angle at the side wall (α as shown in Figure 1).

In some examples of the present application, the glass base 100 may have four sidewalls 120 , and the bending angles between the four sidewalls 120 and the main body 110 may or may not be all equal. For example, among the four side walls, the bending angles between two opposite side walls and the main body may be equal, and the bending angles between two adjacent side walls and the main body may be unequal. The bending angles of the four side walls of the glass substrate are all greater than 70 degrees. Therefore, the glass substrate is a curved glass with a large arc, and the glass substrate is an integral structure, which can save the additional structure such as a middle frame, and has good performance. texture.

Alternatively, in other examples of the present application, the glass base 100 may have two side walls 120 , the two side walls 120 are disposed opposite to each other (eg, on the long side of the glass base), and the two side walls 120 and the main body 110 are located between the two side walls 120 . The bending angle is greater than 70 degrees.

Alternatively, in some other examples of the present application, the bending angle at the side wall 120 may also be no greater than 70 degrees, that is to say, the glass substrate is curved glass with a small curvature, which can also make the curved glass with a small curvature to obtain fog and light. The appearance effect of the surface gradient, and can improve the feel. Preferably, the bending angle at the side wall 120 of the present application is greater than 70 degrees.

In some examples of the present application, referring to FIG. 4 , the housing may further include: a decorative film 200 , and the decorative film 200 is disposed on the inner surface of the glass substrate 100 . Thereby, the appearance effect of the casing can be further enriched. For example, the decorative film 200 may include a UV glue layer, a color layer, a coating layer, and a bottom cover ink layer that are stacked in sequence, and the UV glue layer is disposed close to the glass substrate 100, so that the shell presents a matte and smooth gradient effect. On the basis, the shell presents color effects and metallic luster.

To sum up, the housing of the present application alleviates the problem of hand scraping in the direct transition between the smooth surface and the foggy surface, realizes the uniform transition between the smooth surface and the foggy surface, and at the same time alleviates the unsightly visual direct transition between the smooth surface and the foggy surface. The problem is that the gradual transition between the smooth surface and the fog surface is realized, and the shell is more beautiful.

In another aspect of the present application, the present application proposes a method of manufacturing a housing. In some examples of the present application, the case produced by the method may be the case described above, whereby the case produced by the method may have the same features and advantages as the case described above, in This will not be repeated here.

In some examples of the present application, with reference to Figure 5, the method includes:

S100: Preparation of rough glass substrate

In this step, a glass matrix blank is prepared. In some examples of the present application, the glass matrix blank includes a body.

In some examples of the present application, the glass matrix blank further includes sidewalls connected to the body. The bending angle at the side wall and the number of the side wall have been described in detail above, and will not be repeated here.

In some examples of the present application, preparing the glass base blank may include heat bending flat glass to form a glass base blank having a body and sidewalls, wherein the heat bending temperature may be 700-780° C. , such as 700 ℃, 720 ℃, 740 ℃, 760 ℃, 780 ℃, the time of hot bending treatment can be 270-480s, such as 270s, 300s, 330s, 350s, 380s, 400s, 430s, 450s, 480s. As a result, a glass base blank with a large bending angle (greater than 70 degrees) can be formed.

The specific preparation process of the rough glass substrate is described in detail below:

First, select flat glass as the raw material, process the flat glass to the required size by cutting (CNC machining), and reserve a margin of 0.05-0.1mm around the flat glass for subsequent polishing to remove micro-cracks caused by cutting . The inventors have found that curved glass is usually used as a raw material when preparing a glass base blank with a main body and a side wall. In the present application, flat glass is selected as the raw material. Compared with curved glass, flat glass is easier to locate in the cutting process. The breakage rate is lower, which can effectively improve the production yield.

Subsequently, the cut flat glass is polished to remove the micro-cracks at the edge of the flat glass, and the thickness of the flat glass to be removed on one side is 0.05-0.1 mm. The polishing liquid used in this process can be a solution prepared from polishing powder (the content of cerium oxide is not less than 70%) and water.

Then, the polished flat glass is thermally bent to form a rough glass substrate having a main body and a side wall, the temperature of the thermal bending can be 700-780° C., and the time of the thermal bending can be 270-480s.

Finally, the rough glass substrate is polished and cleaned to remove the orange pattern, indentation, unevenness and other defects caused by hot bending, and the thickness of 0.01-0.02mm is removed from the inner and outer sides of the glass substrate. The polishing liquid used in this process can be a solution prepared from polishing powder (the content of cerium oxide is not less than 70%) and water.

S200: Printing protective ink on a predetermined area of the outer surface of the glass substrate and the entire inner surface to form an ink layer

In this step, the protective ink is printed on a predetermined area of the outer surface of the glass base blank and the entire inner surface to form an ink layer. In some examples of the present application, both the outer surface of the main body and the outer surface of the side wall have predetermined areas, and the predetermined areas are patterns formed by a plurality of first strip-shaped parts and a plurality of second strip-shaped parts arranged in a staggered manner, The plurality of first strip-shaped parts are arranged in parallel, the plurality of second strip-shaped parts are arranged in parallel, the width of the first strip-shaped part gradually increases along the extending direction thereof, and the width of the second strip-shaped part gradually increases along the extending direction thereof. The protective ink is printed on the predetermined area, that is, the ink layer located on the outer surface of the glass base blank covers the first stripe part and the second stripe part, and the ink layer has the first stripe part and the second stripe part. The shape and distribution of the shaped parts are the same, so that the area covered by the ink layer will not be etched during the subsequent frosting treatment, and finally the flat part of the glass substrate is formed. The specific structures and arrangements of the first strip portion and the second strip portion have been described in detail above, and will not be repeated here.

In some examples of the present application, the bending angle of the glass base blank is greater than 70 degrees. The inventors found that for the glass base blank with a bending angle greater than 70 degrees, due to the large bending angle, if the protective ink is screen-printed on the The predetermined area will cause the problem that the predetermined area on the side wall cannot be completely covered by the protective ink, and then in the subsequent frosting treatment, the predetermined area on the side wall that is not covered by the protective ink will be etched, thereby affecting the final appearance. .

In some examples of the present application, for the glass base blank with a bending angle greater than 70 degrees, forming an ink layer on a predetermined area of its outer surface may include: first, scraping protective ink in a mold for forming the ink layer , and then press the above-mentioned mold vertically with a silicone rubber head, which has an arc-shaped surface, to stick the protective ink, and finally, press the silicone rubber head with the protective ink vertically on the outer surface of the glass base blank , so as to transfer the protective ink to the main body and the side wall of the glass base blank, and perform a baking treatment to obtain an ink layer on the outer surface of the glass base blank. Therefore, for the rough glass substrate with a bending angle greater than 70 degrees, the above method can effectively form protective ink at the predetermined area of the main body and the predetermined area of the side wall, ensuring that the predetermined area at the side wall is also completely protected. The ink is covered to ensure that the predetermined area will not be etched during the subsequent frosting treatment.

In some examples of the present application, the mold used in the above process has the pattern of the ink layer (the ink layer on the outer surface of the glass base blank), so that after scraping the protective ink in the mold, the mold with the above-mentioned pattern can be formed. Patterned ink layers. In some examples of the present application, the material of the mold may be steel, and the pattern in the mold may be formed by laser etching.

In some examples of the present application, referring to FIG. 6 , the silicone rubber head 300 used in the transfer process has an arc-shaped surface. Specifically, the silicone rubber head 300 includes a main body and a side wall located at the edge of the main body. The bending angle refers to the angle between the tangent at any point of the side wall and the plane where the main body is located (theta as shown in the figure). When the head presses the mold, the silicone rubber head can be deformed, so that the protective ink can be all glued to the silicone rubber head, and after the pressing is completed, the silicone rubber head can be restored to its original shape. And the side walls are covered with protective ink.

In some examples of the present application, referring to FIG. 6 , the bending angle of the silicone rubber head 300 is smaller than the bending angle of the glass base blank 100 ′, and the bending angle θ of the silicone rubber head 300 is larger than that of the glass base blank 100 ′ The bending angle α is smaller by 5-15 degrees, for example, θ is smaller than α by 5 degrees, 10 degrees, and 15 degrees. In this way, an effective void area can be formed between the silicone rubber head and the glass base blank. When the silicone rubber head adhered with the protective ink is pressed against the outer surface of the glass base blank, the silicone rubber head in the above-mentioned void area Deformation occurs so that the protective ink at the side wall of the silicone rubber head closely adheres to the outer surface of the side wall of the glass base blank, so that the predetermined area at the side wall can be completely covered by the protective ink, and after pressing , The silicone rubber head restores its original shape to realize its separation from the protective ink. This method is easy to operate and has a high production yield.

In some examples of the present application, after the silicone rubber head presses the protective ink on the outer surface of the glass base blank, a baking process is required to form a stable ink layer on the outer surface of the glass base blank, and the baking process is performed. The temperature of the treatment may be 150° C., and the time of the baking treatment may be 30 minutes.

In this step, the entire inner surface of the glass base blank is also printed with protective ink, which can prevent the inner surface of the glass base blank from being etched during the subsequent frosting treatment, and ensure the realization of the matte and smooth gradient effects of the final shell. For the rough glass substrate with a bending angle greater than 70 degrees, the silicone rubber head can be used to transfer the protective ink to the entire inner surface of the rough glass substrate. The bending angle is 5-15 degrees larger, so that an effective void area can be formed between the silicone rubber head and the glass base blank. When the silicone rubber head with the protective ink is pressed against the inner surface of the glass base blank, the above The silicone rubber head in the escape area will be deformed, so that the protective ink at the side wall of the silicone rubber head is closely attached to the inner surface of the side wall of the glass base blank, so as to ensure that the inner surface of the side wall of the glass base blank is also Completely covered with protective ink.

S300: Frosting treatment is performed on the glass base blank provided with the ink layer, so as to form depressions in parts other than the predetermined area to form a glass base

In this step, frosting treatment is performed on the glass substrate blank provided with the ink layer to form opaque recesses with similar size and shape in the portion other than the predetermined area to form the glass substrate. In some examples of the present application, the frosting temperature may be 28-32°C, such as 28°C, 29°C, 30°C, 31°C, 32°C, and the frosting time may be 60-120s, such as 60s, 70s, 80s, 90s, 100s, 110s, 120s. The inventor found that when the frosting treatment time is longer than the above range, the depressions are deeper and the hand feel is rough; when the frosting treatment time is less than the above range, the depressions are shallower and the fogging effect is not obvious. In the present application, the conditions of frosting treatment are set within the above-mentioned range, so that a shell with a finer hand feeling and better matte effect can be obtained.

The frosting liquid used in this step can be selected from commonly used solutions for frosting treatment. For example, the frosting liquid can include 40.5wt% hydrofluoric acid, 26.5wt% ammonium fluoride, 3.6wt% sulfuric acid and 29.4wt% of water.

In some examples of the present application, after the frosting treatment, the method further includes: first, performing ultrasonic cleaning on the frosted glass base blank to wash off the residual residue on the surface of the glass base blank, and then using The deinking agent removes the ink layer covering the glass base blank and cleans it. Then, polish the area of the glass base blank with depressions, and make the depressions transparent to achieve the effect of diffuse reflection. The rough glass substrate is subjected to ultrasonic cleaning to remove residues on the surface of the rough glass substrate to obtain a glass substrate with a smooth and matte gradient effect. The polishing time in this process can be 20-30min, the polishing liquid used for polishing can include hydrofluoric acid, sulfuric acid and water, and the volume ratio of the three can be 1:(1.61-2):(2.74-3), sulfuric acid The concentration of hydrofluoric acid can be 10.62-11.28mol/L, and the concentration of hydrofluoric acid can be 6.15-7.6mol/L.

In some examples of the present application, after the glass substrate is prepared, a decorative film may also be formed on the inner side of the glass substrate to further improve the appearance of the casing. The structure of the decorative film has been described in detail above, and will not be repeated here. The preparation method of the decorative film is not particularly limited, and those skilled in the art can design according to the common preparation method of the decorative film.

In another aspect of the present application, the present application proposes an electronic device. In some examples of the present application, referring to FIG. 7 , the electronic device includes: a casing 1000 , a main board and a display screen (not shown in the figure). The inner side of the casing 1000, and the main board is arranged between the casing 1000 and the display screen. As a result, the electronic device has the appearance effects of matte and smooth gradients, and at the same time has a good hand feeling.

In some examples of this application, the electronic device may be any of various types of computer system devices that are mobile or portable and perform wireless communications. Specifically, electronic devices may be mobile phones or smart phones, portable gaming devices, laptop computers, personal digital assistants, portable Internet devices, music players, and data storage devices, other handheld devices, and such as watches. In this way, the electronic device can have the appearance effects of matte and smooth gradation, and at the same time have a good hand feeling.

It should be noted that the terms "first", "second", "third" and "fourth" in this application are only used for description purposes. Specifically, it is convenient to describe the first strip portion and the second The strip, and the first and second sides that form the first strip, and the third and fourth sides that form the second strip, shall not be construed as indicating or implying relative importance or implying Number of technical features indicated.

Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations to the present application. Embodiments are subject to variations, modifications, substitutions and variations.

Claims (17)

1. A housing, comprising:

a glass substrate including a main body, the outer surface of the main body having a recessed portion and a planar portion, the planar portion being composed of a plurality of first strip portions and a plurality of second strip portions arranged in a staggered manner, the recessed portion being located in a region other than the planar portion,

the first strip-shaped parts are arranged in parallel, the second strip-shaped parts are arranged in parallel, the width of the first strip-shaped parts is gradually increased along the extending direction of the first strip-shaped parts, and the width of the second strip-shaped parts is gradually increased along the extending direction of the second strip-shaped parts.

2. The housing of claim 1, wherein the recess has a light transmittance less than a light transmittance of the planar portion.

3. The housing according to claim 2, wherein the recess is formed by etching the glass substrate, the recess having a matte effect.

4. The housing according to claim 2, wherein an area of the recess in the housing is gradually reduced along an extending direction of the first strip portion.

5. The housing of claim 1, wherein the first strip is formed from a first edge and a second edge, the first edge and the second edge having an included angle of 1-60 degrees,

the second strip-shaped part is composed of a third edge and a fourth edge, and an included angle between the third edge and the fourth edge is 1-60 degrees.

6. The housing according to claim 5, wherein the distance between the corresponding sides in two adjacent first bar-shaped portions is 0.001-10mm,

and the distance between corresponding edges in two adjacent second strip-shaped parts is 0.001-10 mm.

7. The housing of claim 1, wherein an angle between a direction of extension of the first strip and a direction of extension of the second strip is 1-90 degrees.

8. The housing of any of claims 1-7, wherein the glass substrate further comprises a sidewall, the sidewall being connected to the body, an outer surface of the sidewall having the recess and the planar portion.

9. The housing of claim 8 wherein the angle of bend between the side walls and the plane of the main body is greater than 70 degrees.

10. The housing of claim 1, further comprising:

and the decorative membrane is arranged on the inner surface of the glass substrate.

11. A method of making a housing, comprising:

preparing a glass substrate blank, the glass substrate blank comprising a body;

printing protective ink on a preset area of the outer surface of the glass substrate rough blank and the whole inner surface of the glass substrate rough blank to form an ink layer, wherein the preset area is arranged on the outer surface of the main body and is a graph formed by a plurality of first strip-shaped parts and a plurality of second strip-shaped parts which are arranged in a staggered mode, the first strip-shaped parts are arranged in parallel, the second strip-shaped parts are arranged in parallel, the width of each first strip-shaped part is gradually increased along the extending direction of the first strip-shaped part, and the width of each second strip-shaped part is gradually increased along the extending direction of the second strip-shaped part;

and carrying out frosting treatment on the glass substrate rough blank provided with the ink layer so as to form a concave part at the part outside the preset area, thereby forming the glass substrate.

12. The method of claim 11, wherein the glass substrate blank further comprises a sidewall, the sidewall being connected to the body, an outer surface of the sidewall having the predetermined area.

13. The method of claim 12, wherein preparing the glass substrate blank comprises:

and carrying out hot bending treatment on the plane glass to form the glass substrate rough blank with the main body and the side wall, wherein the temperature of the hot bending treatment is 700-780 ℃, and the time of the hot bending treatment is 270-480 s.

14. The method of claim 13, wherein forming the ink layer on the predetermined area of the outer surface of the glass substrate blank comprises:

coating the protective ink in a scraping mode in a mold for forming the ink layer;

vertically pressing the die by using a silica gel head to pick up the protective printing ink, wherein the silica gel head is provided with an arc-shaped surface;

and vertically pressing the silica gel head adhered with the protective ink on the outer surface of the glass substrate rough blank so as to transfer the protective ink to the side wall and the main body of the glass substrate rough blank, and baking to obtain the ink layer.

15. The method according to claim 14, wherein the bending angle of the silica gel head is 5-15 degrees smaller than the bending angle of the glass substrate blank.

16. The method of claim 11, wherein the temperature of the frosting treatment is 28-32 ℃, and the time of the frosting treatment is 60-120 s.

17. An electronic device, comprising:

a housing according to any one of claims 1 to 10;

mainboard and display screen, the mainboard with the display screen sets up the inboard of casing, just the mainboard sets up the casing with between the display screen.

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