CN110740597A - Housing and preparation method, electronic device - Google Patents

Abstract

The shell comprises a glass substrate and a glass substrate, wherein the glass substrate comprises a main body surface and a side wall connected with the main body surface, the main body surface and the side wall define an accommodating space, a fog surface part is arranged on the main body surface and the surface of the side wall far away from the accommodating space , and the thickness of the glass substrate at different positions of the fog surface part is different.

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 casing of the electronic device is made into a matte effect, 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, there is a problem of a single fog surface effect on the shell with the fog surface effect, and the appearance effect needs to be improved. The inventors have found that this is mainly due to the fact that the haze of the outer surface of the housing is currently consistent. Haze (haze) is the percentage of the transmitted light intensity deviating from the incident light at an angle of more than 2.5 degrees to the total transmitted light intensity, that is, a parameter characterizing the optical transparency of transparent or translucent materials. Frosting is used to etch the outer surface of the glass substrate, so that the glass substrate can achieve a haze effect (cloudy or turbid effect). However, the inventors found that currently, when making a shell with a haze effect, the outer surface of the glass substrate is usually frosted directly, which only forms a surface with uniform haze on the outside of the glass substrate, such as the outer surface of the glass substrate. The haze at different locations is the same, resulting in a single haze effect on the shell.

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 surface and a side wall connected to the main body surface, the main body surface and the side wall define a receiving space, and the main body surface and the side wall The surface on the side away from the accommodating space has a fog surface, and the thickness of the glass substrate at different positions of the fog surface is different. Therefore, different areas of the outer surface of the casing have different hazes, so that the casing simultaneously exhibits various haze effects and has a good appearance.

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 surface and a side wall connected with the main body surface, the main body surface and the side wall defining a receiving space; Protective ink is provided on the entire surface of the blank near the accommodating space; frosting treatment is performed on the glass base blank provided with the protective ink, so that the main body surface and the side wall are far away from the accommodating space A fog surface is formed on the surface of one side, and the thickness of the glass base blank at different positions of the fog surface is different to obtain a glass base. Therefore, a shell with different hazes in different regions can be obtained by a simple method, so that the shell can simultaneously present various haze effects and obtain a good appearance.

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 variety of matte effects.

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 embodiments 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 casing according to another example of the present application;

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

FIG. 5 shows a schematic structural diagram of a casing according to another example of the present application;

FIG. 6 shows a schematic structural diagram of a casing according to another example of the present application;

FIG. 7 shows a schematic structural diagram of a first strip portion and a second strip portion according to an example of the present application;

FIG. 8 shows a schematic structural diagram of a housing according to an example of the present application;

FIG. 9 shows a schematic flowchart of a method for preparing a shell according to an example of the present application;

FIG. 10 shows a schematic structural diagram of a silicone rubber tip according to an example of the present application;

FIG. 11 shows a schematic structural diagram of an electronic device according to an example of the present application.

Description of reference numbers:

100: glass substrate; 110: main body surface; 120: side wall; 200: decorative film; 10: matte surface part; 20: flat part; 21: first strip part; 22: second strip part; side; 2: second side; 3: third side; 4: fourth side; 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 surface 110 and a side wall 120 connected to the main body surface 110 , and the main body surface 110 and the side wall 120 define a receiving space , the surface of the main body surface 110 and the side wall 120 away from the accommodation space has a fog surface 10 , and the thickness of the glass substrate at different positions of the fog surface 10 is different. Therefore, different areas of the outer surface of the casing have different hazes, so that the casing simultaneously exhibits various haze effects and has a good appearance.

For ease of understanding, the following briefly describes the housing according to the example of the present application:

The surface (ie the outer surface) of the glass substrate on the side away from the accommodating space of the present application has a fog surface, which can greatly reduce the reflection of the surface of the glass substrate, reduce the transparency of the glass substrate, and make the glass substrate present a foggy effect. Generally, the fog surface is formed by etching the glass substrate by immersing it in frosting liquid. The deeper the etching degree, the more obvious the fog surface effect, and the thinner the thickness of the glass substrate at this position. The thickness of the glass substrate at different positions of the fog surface on the outer surface of the glass substrate of the present application is different, so that the haze at different areas on the outer surface of the glass substrate is different, so that the shell can present various fog surface effects at the same time, effectively improving the fog surface of the shell The problem of a single effect makes the shell obtain a good appearance.

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 thickness of the glass substrate at different positions of the fogged surface portion 10 can be gradually increased along a predetermined direction, so that the haze of the outer surface of the casing can be uniformly changed, and the casing can obtain a visual beauty with a uniform transition of transparency , that is, the shell has a matte gradient appearance effect, and at the same time makes the shell have a smooth and sandy surface with a uniform transition feel.

Alternatively, in some other examples of the present application, the thickness of the glass substrate at different positions of the fog surface 10 can also be gradually increased first and then gradually decreased along a predetermined direction, so that the casing can obtain various fog surface gradients effect, further enriching the appearance of the shell.

In some examples of the present application, in a predetermined direction, the haze at one end of the housing is higher, the haze at the other end is lower, the transparency of the higher haze region is lower, and the transparency of the lower haze region is higher, When the shell was placed on a page with words, the words under the higher haze areas were blurrier and the words under the lower haze areas were sharper.

The specific direction of the predetermined direction is not particularly limited, and those skilled in the art can design it according to the requirements of actual products. For example, in some examples of the present application, the main body surface 110 may be a rectangle, and the predetermined direction may be the long side direction of the main body surface, or the predetermined direction may also be the short side direction of the main body surface, or the predetermined direction may also be the main body surface The diagonal direction of the face. Specifically, referring to FIG. 2 , the predetermined direction may be the longitudinal direction of the main body surface 110 . In some examples of the present application, referring to FIG. 1 , FIG. 1 is a schematic cross-sectional view cut along the predetermined direction in FIG. 2 . The thickness gradually increases along the predetermined direction: the thickness of the A-end glass substrate is smaller, and the thickness of the A'-end glass substrate is larger. Thereby, the casing can have the appearance effect of uniformly changing the matte surface. Or, in some other examples of the present application, referring to FIG. 3 , which is a schematic cross-sectional view taken along the predetermined direction in FIG. 2 , the thickness of the glass substrate first gradually increases and then gradually decreases along the predetermined direction: from the A end The thickness of the glass substrate increases gradually from the B end to the A' end, and the thickness of the glass substrate gradually decreases from the B end to the A' end, so that the shell can have a variety of matte gradient appearance effects, which further enriches the appearance of the shell.

The difference in thickness variation of the glass substrate at different positions of the fog surface in a predetermined direction is not particularly limited, as long as the uniform change of the fog effect can be achieved.

In some examples of the present application, the surface of at least one of the main body surface and the side wall on the side away from the accommodating space further has a flat surface portion, and the flat surface portion is located in an area other than the fog surface portion, and the thickness of the glass substrate at different positions of the flat surface portion is the same. . For example, referring to FIG. 4 , FIG. 4 is a schematic cross-sectional structure diagram of the casing along a direction perpendicular to the predetermined direction in FIG. 2 , the outer surface of the main body surface 110 further includes a flat surface portion 20 , and the flat surface portion 20 is located in an area other than the fog surface portion 10 , and the flat surface portion 20 The thickness of the glass substrate at different positions is the same, and the flat portion 20 may have a larger area. As a result, logos, such as LOGO, text descriptions, etc., can be made on the plane part.

It should be noted that the flat part of this application should be understood in a broad sense, and it does not only refer to the flat part. The flat part refers to the area on the outer surface of the side wall excluding the fog surface, that is, the flat part at the main body surface has the same radian as the main body surface, and the flat part on the side wall has the same radian as the side wall.

In other examples of the present application, referring to FIG. 5 ( FIG. 5 is a schematic cross-sectional view taken along the predetermined direction of FIG. 6 ), the surfaces of the main body surface 110 and the side wall 120 on the side away from the accommodating space both have a plane portion 20 , and the plane portion 20 is composed of a plurality of first strip parts 21 and a plurality of second strip parts 22 arranged in a staggered manner, the fog surface 10 is located in the area other than the plane part 20 (refer to FIG. 6 ), wherein the plurality of first strip parts 21 are arranged in parallel, a plurality of second strip portions 22 are arranged in parallel, the width of the first strip portion 21 gradually increases along its extending direction, and the width of the second strip portion 22 gradually increases along its extending direction. Thereby, the shell can obtain the appearance effect of gradual change between the matte surface and the glossy surface, realize the uniform transition between the glossy surface and the matte surface, and further improve the hand feeling of the shell.

In some examples of the present application, the light transmittance of the foggy surface portion 10 is smaller than the light transmittance of the flat portion 20 , and the casing exhibits a matte effect in the foggy surface area and a smooth surface effect in the flat surface area. The volume has a matte and glossy gradient appearance.

In some examples of the present application, referring to FIG. 7 , 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. 7 ) 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. 7 ) 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雾面部(参考图6)，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，从而可实现雾面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 extending direction of the first strip part 21 and the extending direction of the second strip part 22 (as shown in FIG. 7 )

) 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. Therefore, 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 fog surface (refer to FIG. 6 ), and the The widths of the strip portion and the second strip portion are gradually increased along their extending directions, so that the gradual transition between the matte surface and the flat surface can be realized, so that the shell can obtain the effect of gradual change between the matte surface and the smooth surface, 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 fogged surface area surrounded by the fog surface also shows a certain regular gradient. Specifically, the cross-sectional area of the fogged surface gradually decreases along the extension direction of the first strip-shaped part and the second strip-shaped part (refer to Fig. 6 ). ), and the thickness of the glass substrate at the fog surface gradually changes along a predetermined direction, that is, the depth of the fog surface gradually changes along a predetermined direction, that is, the cross-sectional area and depth of the fog surface gradually change (refer to FIG. 5, FIG. 5 is a schematic cross-sectional view taken along a predetermined direction in FIG. 6 ), thus, the shell can present the effect of gradual change of the fog surface and the smooth surface, and the smooth surface and the fog surface cooperate with each other, which can further enrich the appearance 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. 7 , 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.

从而可以限定出雾面部。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. 7 , 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, the fog face 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.

There is no particular limitation on the specific form of the gradation of the foggy and flat faces. For example, the fogged and flat faces are gradually gradated up and down, so that the shell obtains the effect of the matte and glossy faces graduating up and down. The body obtains the effect of the left and right gradients of the matte and glossy surfaces, or, the foggy and flat faces are diagonally gradient, so that the shell obtains the effect of the fog and the glossy gradients diagonally, or, the fogged and flat faces are gradients in the center and around. 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 surface 110 may be greater than 70 degrees, such as 90 degrees, 100 degrees, 120 degrees. 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 surface (α as shown in FIG. 1 ), specifically, the angle between the side wall and the main body surface. The angle between the planes. The plane on which the main body surface 110 of the present application is located may be the plane on which the inner surface of the main body surface 110 is located, or may be the plane on which the outer surface (the dotted line surface shown in FIG. 1 ) of the main body surface 110 is located before the fog surface 10 is provided. .

In some examples of the present application, the main surface 110 of the glass substrate 100 may be a plane (the inner surface and the outer surface before the fog surface are both flat), or may also be a curved surface (the inner surface and the outer surface before the fog surface are not provided) The outer surfaces are arc surfaces). When the main body surface 110 is an arc surface as a whole, the plane where the main body surface is located is the plane where the tangent line is at the highest point of the main body surface 110 (the highest point of the outer surface of the main body surface before the fog surface is provided). The side wall 120 can also be a plane (the inner surface and the outer surface before the fog surface are not provided are flat) or an arc surface (the inner surface and the outer surface before the fog surface are not provided are both arc surfaces). When the outer surface 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 (the outer surface before the fog surface is not provided) and the plane where the main body surface 110 is located is the bending at the side wall. angle (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 surface 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 surface may be equal, and the bending angles between two adjacent side walls and the main body surface 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 surface 110 are located between the two side walls 120 . The bending angles between them are all 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 a curved glass with a small arc, which can also make the curved glass with a small arc to obtain a matte gradient. Or the appearance effect of matte and glossy gradient, and can improve the feel of the shell. 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. 8 , the housing may further include: a decorative film 200 , the decorative film 200 is disposed on the inner surface of the glass substrate 100 , that is, the surface facing the side of the accommodating space. Thereby, the appearance effect of the casing can be further enriched. For example, the decorative film 200 may include a UV adhesive layer, a color layer, a coating layer, and a bottom cover ink layer that are stacked in sequence, and the UV adhesive layer is disposed close to the glass substrate 100 , thereby presenting a matte gradient effect or a matte surface on the housing. On the basis of the smooth gradient effect, the shell presents color effects and metallic luster.

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, referring to FIG. 9, 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 base blank includes a main body surface and a side wall connected to the main body surface, the main body surface and the side wall defining a receiving space. 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. It should be noted that the outer surface of the main surface of the rough glass substrate is the outer surface of the main surface of the glass substrate before the fog surface is not provided, and the outer surface of the side wall of the rough glass substrate is the glass substrate described above. The outer surface of the side wall before the fog face is not provided.

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 face and sidewalls, wherein the heat-bending temperature may be 700-780°C °C, such as 700 °C, 720 °C, 740 °C, 760 °C, 780 °C, 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. The thickness of the flat glass can be 0.4-1.0mm. The flat glass is processed into the required size by a glass substrate cutting machine, and a margin of 0.05-0.1mm is reserved around the flat glass. , for subsequent polishing to remove microcracks caused by cutting. The inventors have found that curved glass is usually used as a raw material when preparing a glass substrate blank with a main body surface 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 during the cutting process. , the breakage rate is lower, which can effectively improve the production yield.

Then, the cut flat glass is edged by the grinding wheel of the engraving machine, and the above-mentioned flat glass is chamfered and drilled by a drill.

Then, ultrasonic cleaning is performed on the flat glass after edging and drilling to ensure that the flat glass is cleaned. Ultrapure water can be used as a cleaning solution, and the purity of ultrapure water is greater than 14 megohm*cm.

Subsequently, the cleaned flat glass is thermally bent to form a rough glass substrate having a main body surface and sidewalls, the thermal bending temperature can be 700-780° C., and the thermal bending time can be 270-480 s.

Subsequently, the rough glass substrate is polished with a brush to remove defects such as orange lines, indentations, and concavities and convexities caused by hot bending, as well as to remove micro-cracks in the shape of the rough glass substrate and the surface of the drilled holes. The polishing material can be a pig hair brush, the polishing time can be 25-35min, and the rotating speed of the brush can be 600-800rpm/min. Therefore, the rough glass substrate is polished by the pig hair brush, so that the surface of the rough glass substrate can be smoothed, and at the same time, the microcracks generated during the processing of the rough glass substrate can be removed, and the strength of the glass can be improved.

Finally, ultrasonic cleaning is performed on the polished glass substrate blank to ensure that the glass substrate blank is cleaned. Ultrapure water can be used as a cleaning solution, and the purity of ultrapure water is greater than 14 megohm*cm.

The inventors found that, when preparing a shell with a matte effect, the rough glass substrate is usually frosted, and then edged and drilled. Microcracks will be formed during the process of edge grinding and drilling, thereby To reduce the strength of the shell, if the above-mentioned micro-cracks are polished again, the polishing process will destroy the haze effect already formed on the glass substrate. In the present application, the flat glass is edged and drilled before hot bending, and polished, which can effectively remove the micro-cracks formed during the edging and drilling process, that is, structures such as drill holes are formed on the rough glass substrate before subsequent follow-up Therefore, the strength of the shell can be effectively improved, and the fog effect of the shell will not be damaged at the same time.

S200: Set the protective ink on the entire surface of the glass base blank near the receiving space

In this step, the protective ink is provided on the entire surface of the glass base blank near the accommodating space. Those skilled in the art can understand that the inner surface of the glass base blank (that is, the surface of the glass base blank on the side close to the accommodating space) is a non-working surface (ie, it does not need to be etched). The entire inner surface of the glass substrate is provided with protective ink, which can prevent the inner surface of the glass substrate from being etched during the subsequent frosting treatment.

The inventors found that currently, when preparing a shell with a matte effect, a protective ink is usually placed on the non-working surface of the rough glass substrate by screen printing. For rough blanks, screen printing cannot guarantee that the sidewalls of the glass substrate blanks are completely covered by the protective ink. Therefore, during the subsequent frosting treatment, the phenomenon that the sidewalls are not covered with the protective ink will be corroded. In the present application, the protective ink is formed on the inner surface of the rough glass substrate by spraying, which can ensure that the side wall with a large bending angle (greater than 70 degrees) can be completely covered by the protective ink, thereby effectively preventing the side wall from being corroded.

In some examples of the present application, the air pressure of the spray gun during the spraying process may be 2.0-5.5 kg, and the distance of the spray gun during the spraying process may be 15-35 cm. In this way, it can be ensured that the entire inner surface of the glass base blank with a relatively large bending angle (greater than 70 degrees) is covered with the protective ink.

In some examples of the present application, the method may further include: disposing protective ink on a predetermined area of the surface of at least one of the main body surface and the side wall on the side away from the accommodating space, and the area of the predetermined area is relatively large, thus, in During the subsequent frosting treatment, it can ensure that the area covered by the protective ink on the outer surface of the glass base blank is not etched, so that after frosting treatment, a larger flat surface can be formed in the predetermined area of the outer surface of the glass base blank. It can be marked on the plane part, such as LOGO, text description, etc. In some examples of the present application, the above-mentioned predetermined area may be a partial area of the outer surface of the main body, or may be a partial area of the outer surface of the side wall, or may be a partial area of the outer surface of the main body and the outer surface of the side wall. In some areas, when the protective ink is set on the predetermined area of the outer surface of the side wall, spraying method can be used to ensure that the predetermined area of the outer surface of the side wall with a large bending angle (greater than 70 degrees) can be completely covered by the protective ink.

In some other examples of the present application, the method may further include: arranging protective ink in a predetermined area of the main body surface and the surface of the side wall away from the accommodating space to form an ink layer, and the predetermined area is composed of a plurality of first The figure formed by the strip part and the plurality of second strip parts, the plurality of first strip parts are arranged in parallel, the plurality of second strip parts are arranged in parallel, and the width of the first strip part gradually increases along its extending direction, The width of the second strip portion gradually increases along its extending direction, and the ink layer may be formed by the following steps: first, scraping protective ink in a mold for forming the ink layer, and then vertically using a silicone rubber head Press the above-mentioned mold to stick the protective ink. The silicone rubber head has a curved surface. Finally, press the silicone rubber head with the protective ink vertically on the surface of the glass base blank on the side away from the accommodating space to protect the protective ink. The ink is transferred to the main surface and the side wall of the glass base blank, and a baking process is performed 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 surface and the predetermined area of the side wall, so as to ensure that the predetermined area at the side wall is also completely covered. The protective ink cover can ensure that the predetermined area is not etched during the subsequent frosting treatment, and the outer surface of the glass substrate rough blank except the predetermined area is etched away to form a fog surface.

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. 10 , the silicone rubber head 300 used in the transfer process has a curved surface. Specifically, the silicone rubber head 300 includes a main body surface and a side wall located at the edge of the main body surface. The silicone rubber head 300 The bending angle refers to the angle between the tangent at any point of the side wall and the plane of the main body (θ as shown in the figure). Since the silicone rubber head is a soft When the silicone rubber 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. Protective ink is adhered to the main body and side walls of the head.

In some examples of the present application, referring to FIG. 10 , 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 some examples of the present application, the protective ink is arranged on the inner surface of the rough glass substrate (bending angle is greater than 70 degrees), which can also be realized by transfer printing with a silicone rubber head. At this time, the bending angle of the silicone rubber head is thicker than that of the glass substrate. The bending angle of the blank 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 protective ink is pressed against the inner surface of the glass base blank , the silicone rubber head in the above-mentioned 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 the protection of the glass base blank side wall. The inner surface is also completely covered with protective ink.

S300: Frosting the glass base blank provided with the protective ink to form a fog surface on the main surface and the surface of the side wall away from the accommodating space, and to make the thickness of the glass base blank at different positions on the fog surface different

In this step, frosting treatment is performed on the glass base blank provided with the protective ink to form a foggy surface on the main surface and the surface of the side wall away from the accommodating space, and to make the glass base blank at the foggy surface Thickness varies. Thereby, the haze in different regions of the casing can be different, and a casing with various haze effects can be obtained.

In some examples of the present application, frosting the glass substrate blank provided with the protective ink may include:

First, the rough glass substrate is immersed in the frosting liquid at a constant speed along a predetermined direction, then, the rough glass substrate is immersed in the frosting liquid for a predetermined time, and finally, the glass substrate is roughened at a predetermined initial speed and a predetermined acceleration. The blank is pulled out of the frosting liquid surface in the predetermined direction to form a fog surface on the surface of the glass base blank on the side away from the accommodating space. The method has the advantages of simple procedure and low cost, and the method can realize the uniform change of haze on the shell, obtain the shell with the effect of the gradual appearance of the fog surface, and at the same time make the shell have a smooth surface and a sand surface with a uniform transition. feel. The predetermined direction has been described in detail above, and will not be repeated here.

In some examples of the present application, during the frosting process, the time that the rough glass substrate is immersed in the frosting liquid can determine the overall haze of the final shell, and the initial speed and acceleration during the pulling process can determine the fog. How uniform the surface effect changes.

In some examples of the present application, the predetermined time for soaking the glass base blank in the frosting liquid may be 2-10 min, such as 2 min, 4 min, 6 min, 8 min, 10 min. In this way, grooves with a certain depth can be formed on the outer surface of the rough glass substrate, so as to ensure that the final shell has an obvious fog effect.

In some examples of the present application, during the pulling process, the predetermined initial speed may be 0.1-15mm/s, such as 0.1mm/s, 1mm/s, 2mm/s, 3mm/s, 4mm/s, 5mm/s , 6mm/s, 7mm/s, 8mm/s, 9mm/s, 10mm/s, 11mm/s, 12mm/s, 13mm/s, 14mm/s, 15mm/s, the predetermined acceleration can be 1-8mm/ s ² , such as 1mm/s ² , 2mm/s ² , 3mm/s ² , 4mm/s ² , 5mm/s ² , 6mm/s ² , 7mm/s ² , 8mm/s ² . In this way, a fog surface with a uniform depth variation can be obtained, so that the casing can obtain an appearance effect with a uniform fog effect.

In some examples of the present application, during the process of immersing the glass base blank in the frosting liquid, the immersion speed may be 20-35mm/s, such as 20mm/s, 25mm/s, 30mm/s, 35mm/s, and the immersion time Can be no more than 7s. Therefore, the immersion time of the rough glass substrate is short, and the immersion is uniform at a constant speed, which can avoid the adverse effect of the immersion process on the fog surface effect of the final shell.

In some examples of the present application, the temperature of the frosting treatment may be 28-32° C., and the frosting liquid used in the frosting treatment may be a solution commonly used in the frosting treatment. For example, the frosting liquid may include 40.5wt% hydrogen Fluoric acid, 26.5 wt% ammonium fluoride, 3.6 wt% sulfuric acid, and 29.4 wt% water.

In some examples of the present application, the entire glass base blank may be immersed in the frosting liquid in a predetermined direction, and after being immersed in the frosting liquid for a predetermined time, the liquid surface of the frosting liquid is pulled out at a predetermined initial speed and a predetermined acceleration, The rough glass base body with the thickness gradually increasing along the predetermined direction is obtained, so that the shell can present the appearance effect of gradual matte surface. Alternatively, in some other examples of the present application, a part of the glass base blank may be immersed in the frosting liquid in a predetermined direction first, and after immersing in the frosting liquid for a predetermined time, the frosting may be pulled out at a predetermined initial speed and a predetermined acceleration. The liquid level of the sand liquid, then flip the glass base blank, and immerse the other part of the glass base blank that is not corroded into the frosting liquid along a predetermined direction. The liquid level of the frosting liquid is pulled out to obtain a glass base rough blank whose thickness first increases and then gradually decreases along a predetermined direction, so that the shell can present the appearance of various fog surface gradation effects.

In some examples of the present application, after the ink layer with the above-mentioned shape is transferred to a predetermined area on the outer surface of the glass base blank, the glass base blank provided with the protective ink is frosted, so that the unprotected ink can be removed by frosting. The covered area is etched away to form a fog surface with a gradually decreasing cross-sectional area along the extending directions of the first strip portion and the second strip portion, and a fog surface whose depth gradually changes along a predetermined direction, that is, the cross section of the fog surface. Both the cross-sectional area and the depth are gradually changed, so that the shell can present the effect of the gradual change of the matte surface and the smooth surface, and the smooth surface and the matte surface cooperate with each other, which can further enrich the appearance effect of the shell.

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, so as to clean off the residual residue on the surface of the glass base blank, which can be ultrasonically cleaned. Pure water is used as a cleaning solution, and the purity of ultrapure water is greater than 14 megohm*cm. Then, the cleaned glass substrate is polished, and the mist surface is treated to be transparent to achieve diffuse reflection 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. Then, ultrasonically clean the polished glass base blank to ensure that the glass base blank is cleaned. Ultrapure water can be used as a cleaning solution, and the purity of ultrapure water is greater than 14 megohm*cm.

Subsequently, the protective ink covering the glass base blank is removed using a deinking agent. Subsequently, ultrasonic cleaning is performed on the glass base blank with the protective ink removed to ensure that the glass base blank is cleaned. Ultrapure water can be used as a cleaning solution, and the purity of ultrapure water is greater than 14 megohm*cm. Subsequently, the cleaned glass base blank is tempered. The solution used in the tempering treatment is potassium nitrate with a mass concentration of 38%. The tempering temperature is 300-500°C. The time of tempering treatment is 65-300min, and the time of the second tempering treatment is 27-48min. In this way, a compressive stress layer can be formed on the surface of the casing to improve the overall strength and surface wear resistance of the casing. Finally, ultrasonic cleaning is performed on the roughened glass substrate after the tempering treatment, and an anti-fingerprint film is plated on the inner surface and the outer surface of the cleaned glass substrate to obtain a glass substrate.

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. 11 , 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 appearances with various matte effects 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. Thereby, the electronic device can be made to have various matte effects in appearance, and at the same time have a good hand feeling.

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 (20)

1. a housing, is characterized in that, comprises: A glass substrate, the glass substrate includes a main body surface and a side wall connected to the main body surface, the main body surface and the side wall define a receiving space, and the main body surface and the side wall are far away from the receiving space The surface of one side has a fog surface, and the thickness of the glass substrate at different positions of the fog surface is different. 2 . The casing according to claim 1 , wherein the thickness of the glass substrate at different positions of the fog surface gradually increases along a predetermined direction. 3 . 3 . The casing according to claim 1 , wherein the thickness of the glass substrate at different positions on the fog surface gradually increases first and then gradually decreases along a predetermined direction. 4 . 4 . The housing according to claim 1 , wherein the surface of at least one of the main body surface and the side wall on the side away from the accommodating space further has a plane portion, and the The flat part is located in the area other than the fog surface, and the thickness of the glass substrate at different positions of the flat part is the same. 5 . The housing according to claim 4 , wherein the surface of the main body surface and the side wall away from the accommodating space has the flat surface portion, and the flat surface portion is composed of a plurality of staggered arrays. a first strip part and a plurality of second strip parts, 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, the width of the first strip-shaped part gradually increases along its extending direction, and the second strip-shaped part The width gradually increases along its extension direction. 6 . The housing according to claim 5 , wherein the first strip portion is composed of a first side and a second side, and an included angle between the first side and the second side is 6 . 1-60 degrees, The second strip portion is composed of a third side and a fourth side, and an included angle between the third side and the fourth side is 1-60 degrees. 7 . The casing according to claim 6 , wherein the distance between the corresponding sides of two adjacent first strip portions is 0.001-10 mm, 8 . In two adjacent second strip portions, the distance between the corresponding sides is 0.001-10 mm. 8 . The housing according to claim 5 , wherein an included angle between the extending direction of the first strip portion and the extending direction of the second strip portion is 1-90 degrees. 9 . 9 . The casing according to claim 1 , wherein the bending angle between the side wall and the plane where the main body surface is located is greater than 70 degrees. 10 . 10. The housing of claim 1, further comprising: A decorative film is provided on the inner surface of the glass substrate. 11. A method for preparing a shell, comprising: preparing a glass base blank, the glass base blank comprising a main body surface and a side wall connected with the main body surface, the main body surface and the side wall defining an accommodation space; A protective ink is provided on the entire surface of the glass base blank on one side close to the accommodating space; Frosting treatment is performed on the glass base blank provided with the protective ink to form a matte surface portion on the main body surface and the surface of the side wall away from the accommodating space, and the matte surface portion is formed. The thickness of the glass matrix blanks at different locations is different to obtain the glass matrix. 12. The method of claim 11, wherein preparing the glass matrix blank comprises: The flat glass is subjected to hot bending treatment to form the glass base rough blank having the main body surface and the side wall, the temperature of the hot bending treatment is 700-780° C., and the time of the hot bending treatment is 270 -480s. 13 . The method according to claim 11 , characterized in that, setting the protective ink on the entire surface of the glass base blank on one side close to the accommodating space is achieved by spraying, and the spray gun in the spraying process The air pressure is 2.0-5.5kg, and the distance of the spray gun during the spraying process is 15-35cm. 14 . The method according to claim 13 , further comprising disposing the protective ink in a predetermined area of the main body surface and the surface of the side wall away from the accommodating space to form an ink layer, the 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 second strip-shaped parts are arranged in parallel , the width of the first strip portion gradually increases along its extending direction, the width of the second strip portion gradually increases along its extending direction, and the ink layer is formed through the following steps: knife-coating the protective ink in a mold for forming the ink layer; Use a silicone rubber head to vertically press the mold to stick the protective ink, and the silicone rubber head has a curved surface; Vertically press the silicone rubber head with the protective ink on the surface of the glass base blank on the side away from the accommodating space, so as to transfer the protection ink to the side wall and the side wall of the glass base blank. on the main body surface, and a baking process is performed to obtain the ink layer. 15 . The method according to claim 14 , wherein the bending angle of the silicone rubber head is 5-15 degrees smaller than the bending angle of the glass base blank. 16 . 16. The method according to claim 11 or 15, wherein performing the frosting treatment on the glass base blank provided with the protective ink comprises: immersing the glass base blank in the frosting liquid at a constant speed along a predetermined direction; soaking the glass base blank in the frosting liquid for a predetermined time; At a predetermined initial speed and a predetermined acceleration, the glass base blank is pulled out of the frosting liquid level along the predetermined direction, so as to make a surface of the glass base blank on the side away from the accommodating space. The mist face is formed. 17. The method according to claim 16, wherein the immersion speed is 20-35 mm/s, and the immersion time is not more than 7s. 18. The method according to claim 16, wherein the predetermined time is 2-10 min. 19. The method according to claim 16, wherein the predetermined initial velocity is 0.1-15 mm/s, and the predetermined acceleration is 1-8 mm/s ² . 20. An electronic device, comprising: a casing, the casing is described in any one of claims 1-10; A main board and a display screen, the main board and the display screen are arranged inside the casing, and the main board is arranged between the casing and the display screen.

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