CN112399734A

CN112399734A - Shell assembly of electronic equipment, manufacturing method of shell assembly and electronic equipment

Info

Publication number: CN112399734A
Application number: CN201910765045.0A
Authority: CN
Inventors: 范晓宇
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2021-02-23

Abstract

The invention provides a shell assembly of electronic equipment, a manufacturing method of the shell assembly and the electronic equipment. This casing subassembly includes the printing opacity casing, glue film and the film diaphragm of range upon range of setting, and wherein, the film diaphragm has relative first end and the second end that sets up, and first end has first colour, and the concentration of first colour from first end to second end reduces gradually. According to the shell assembly provided by the invention, the film diaphragm can have a gradient effect through dyeing treatment, and the equipment processing technology of the dyeing treatment is simpler and easier to control, so that the cost of the gradient film diaphragm is lower, the product stability is higher, and the cost for realizing the gradient effect of the shell assembly is lower.

Description

Shell assembly of electronic equipment, manufacturing method of shell assembly and electronic equipment

Technical Field

The invention relates to the technical field of manufacturing of shells of electronic equipment, in particular to a shell assembly of the electronic equipment, a manufacturing method of the shell assembly and the electronic equipment.

Background

With the continuous development of the mobile phone industry, the requirement for the appearance beauty of the mobile phone is higher and higher. Moreover, the color of the rear cover of the mobile phone gradually develops from single pure color to gradual color. The method for obtaining the mobile phone rear cover with the gradually changed color is the most commonly adopted method at present by utilizing the mode that the gradually changed color film membrane is attached to the mobile phone rear cover made of transparent materials.

The technological scheme of realizing gradient color of film diaphragm includes mainly film coating process, spraying process, color band transferring process and Ultraviolet (UV) transferring ink filling process. However, the gradual change process has the defects of lack of processing equipment, high cost and difficult control of the color of the coating film; the spraying process is greatly influenced by spraying equipment and the properties of the coating, the required gradual change effect and the required fineness cannot be stably realized, and the film membrane is very thin and soft and is difficult to fix on a spraying tool to realize stable spraying; ribbon transfer requires a processing device and a processing technology very much in relation to a UV transfer ink filling process, and two layers of polyethylene terephthalate (PET) films are stacked to realize a gradient color effect, which results in high cost.

Therefore, the technical means for realizing the gradient of the film diaphragm at the present stage still needs to be improved.

Disclosure of Invention

An object of the embodiments of the present invention is to provide a housing assembly of an electronic device, a manufacturing method of the housing assembly, and an electronic device using the housing assembly, which are capable of achieving a gradual change effect of a film diaphragm and have a simple and convenient manufacturing process, easy control, and low cost.

In a first aspect of an embodiment of the present invention, a housing assembly of an electronic device is presented.

According to an embodiment of the invention, the housing assembly comprises a light-transmitting housing, a glue layer and a film membrane which are arranged in a stacked manner, wherein the film membrane has a first end and a second end which are arranged oppositely, the first end has a first color, and the concentration of the first color is gradually reduced from the first end to the second end.

According to the shell assembly of the electronic device, the film diaphragm can have the gradient effect through dyeing treatment, and the equipment processing technology of the dyeing treatment is simpler and easier to control, so that the cost of the gradient film diaphragm is lower, the product stability is higher, and the cost of realizing the gradient effect of the shell assembly is lower.

In a second aspect of the invention, a method of making a housing assembly for an electronic device is presented.

According to an embodiment of the invention, the method comprises: carrying out first dyeing treatment on a film sheet to obtain the film sheet with a first color at a first end, wherein the concentration of the first color is gradually reduced from the first end to a second end, and the first end and the second end are arranged oppositely; and adhering the film membrane to one surface of the light-transmitting shell in an adhesive mode to obtain the shell assembly.

By adopting the method for manufacturing the shell assembly of the electronic equipment, the dyeing process is lower in equipment cost, simpler in process, better in visual effect, stronger in permeability and higher in yield, so that the cost for realizing the gradual change of the film diaphragm is lower, the manufactured shell assembly is better in gradual change effect, and meanwhile, the manufacturing cost is lower.

In a third aspect of the invention, an electronic device is presented.

According to an embodiment of the present invention, the electronic apparatus includes: the film comprises a first end and a second end which are arranged oppositely, the first end is provided with a first color, and the concentration of the first color is gradually reduced from the first end to the second end; a display device coupled to the housing assembly.

According to the electronic equipment provided by the embodiment of the invention, the shell assembly has the gradual appearance effect and is lower in manufacturing cost, so that the electronic equipment has better market competitiveness. It will be appreciated by those skilled in the art that the features and advantages described above with respect to the housing assembly of an electronic device, which are applicable to the electronic device, will not be described in detail herein.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic cross-sectional view of a housing assembly of an electronic device in accordance with one embodiment of the present invention;

FIG. 2 is a schematic top view of a film web according to one embodiment of the present invention;

FIG. 3 is a schematic top view of a film web according to another embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a housing assembly of an electronic device in accordance with another embodiment of the invention;

FIG. 5 is a flow diagram of a method of making a housing assembly for an electronic device in accordance with one embodiment of the present invention;

fig. 6 is an external view of an electronic device according to an embodiment of the present invention.

Reference numerals

100 light-transmitting shell

200 glue layer

300 film

301 first end

302 second end

400 pattern layer

500 optical texture layer

600 film coating layer

700 ink layer

10 casing

20 display device

1 electronic device

Detailed Description

The following examples of the present invention are described in detail, and it will be understood by those skilled in the art that the following examples are intended to illustrate the present invention, but should not be construed as limiting the present invention. Unless otherwise indicated, specific techniques or conditions are not explicitly described in the following examples, and those skilled in the art may follow techniques or conditions commonly employed in the art or in accordance with the product specifications.

In one aspect of an embodiment of the present invention, a housing assembly for an electronic device is presented.

According to an embodiment of the present invention, referring to fig. 1, the housing assembly includes a light-transmitting housing 100, a glue layer 200, and a film 300, which are stacked, wherein, referring to fig. 2, the film 300 has a first end 301 and a second end 302 which are oppositely disposed, the first end 301 has a first color a, and the concentration of the first color a gradually decreases from the first end 301 to the second end 302. Thus, the film membrane 300 with the flat and smooth surface is directly dyed into a single-color gradual change (such as multiple colors of orange, blue, black, purple and the like) through a dyeing process, a gradual change color layer is not required to be additionally manufactured by complex and expensive spraying or coating equipment, and the film membrane 300 with the gradual change color is manufactured at lower cost and high yield, so that the manufacturing cost of the gradual change appearance effect of the shell assembly is lower, and the whole thickness of the shell assembly is thinner. It should be noted that "stacked arrangement" herein specifically means that the films are arranged in order from the outer surface to the inner surface of the light-transmitting housing 100, and the "film" specifically means a film with high hardness and high surface flatness.

In some embodiments of the present invention, the material forming the film 300 may include polyethylene terephthalate (PET), polymethyl methacrylate (PMMA) and Polycarbonate (PC), so that the film 300 made of the above transparent material may have a more obvious color-changing effect of the film 300 after dyeing treatment, and has strong transparency and lower light-shielding property, and may not cover the optical effect of other layer structures on the side of the film 300 away from the light-transmitting casing 100.

In some embodiments of the present invention, the thicknesses of the film films 300 may be the same, so that the film 300 with a flat surface and a uniform thickness facilitates the continuous fabrication of other layer structures on the side of the film 300 away from the light-transmitting housing 100, and the flatness of other layer structures with other optical effects is also higher, so that the appearance effect of the housing assembly is more uniform and consistent, and the mirror effect is favorably presented.

In some embodiments of the present invention, referring to fig. 3, the second end 302 of the film 300 can also have a second color B, and the concentration of the second color B is gradually decreased from the second end 302 to the first end 301, so that the film 300 has a two-color gradient effect of transitioning from the first color a to the second color B. In fig. 2 and 3, the white circles and black triangles represent the first color a and the second color B, respectively, and the number of the white circles or black triangles in a row indicates the density of the first color a or the second color B, and the case where the first color a or the second color B is in a dispersed spray point or distribution is not described.

In some specific examples of the present invention, referring to fig. 3, the density of the first color a gradually decreases from the first end 301 to two thirds away from the first end 301, i.e., the transparency of the first color a increases to 100%; and the second end 302 is away from the second end 302 by one third, the concentration of the second color B is gradually reduced, namely the transparency of the second color B is increased to 100%; in this way, the film 300 can realize a color change effect of gradually changing from the first color a (e.g. blue) to the second color B (e.g. pink) from the first end 301 to the second end 302.

In other specific examples of the present invention, the density of the first color a gradually decreases from the first end 301 to two thirds away from the first end 301, that is, the transparency of the first color a increases to 100%; and the second end 302 is far away from the second end 302 by two thirds, the concentration of the second color B is gradually reduced, namely the transparency of the second color B is increased to 100%; in this way, the film 300 is in the first color a (e.g. blue) near the first end 301, in the second color B (e.g. pink) near the second end 302, and in the middle area, in the superimposed color of the first color a and the second color B (e.g. purple), so that the film 300 can realize the color changing effect of gradually changing from the first color a to the superimposed color and then to the second color B from the first end 301 to the second end 302.

According to an embodiment of the present invention, referring to fig. 4, the housing assembly may further include a pattern layer 400, an optical texture layer 500, a coating layer 600, and an ink layer 700, that is, the side of the film membrane 300 away from the light-transmitting housing 100 may further be provided with the pattern layer 400, the optical texture layer 500, the coating layer 600, and the ink layer 700 in a stacked arrangement. Thus, the pattern layer 400 can make the housing assembly show patterns such as logo, the optical texture layer 500 can make the housing assembly show metal texture effect, the film coating layer 600 can make the housing assembly have metal texture, and the ink layer 700 can make the housing assembly have desired appearance color, so that the housing assembly has more three-dimensional appearance effect.

According to an embodiment of the present invention, the specific sectional shape of the pattern layer 400 is not particularly limited,specifically, for example, the shape of logo (logo), numbers or letters, and those skilled in the art can select the shape accordingly according to the specific type of the electronic device. According to the embodiment of the invention, the thickness of the optical texture layer 500 may be 7 to 9 micrometers, and the surface of the optical texture layer 500 away from the film membrane 300 may have a micro-nano structure, so that the optical texture layer 500 has a more three-dimensional metal texture effect. According to the embodiment of the invention, the coating layer 600 may be a layer of titanium dioxide (TiO) with a thickness of 150-500 nm₂) Or silicon dioxide (SiO)₂) Or a multilayer structure, wherein the outermost layer adopts TiO with the thickness of 150-500 nm₂Or SiO₂The inner layer is made of niobium pentoxide (Nb)₂O₅) Alumina (Al)₂O₃)、TiO₂And SiO₂Thus, the casing component has metal texture by adopting the coating layer 600 with the total thickness not exceeding 800 nm. According to the embodiment of the invention, the ink layer 700 may include two layers of white ink and one layer of gray ink, or three layers of black ink, and the thickness of each layer is 6 to 8 micrometers, so that the white or black ink layer 700 can better support the color-gradient effect of the film membrane 300.

In summary, according to the embodiments of the present invention, a housing assembly of an electronic device is provided, in which a film can have a gradual color change effect through a dyeing process, and a processing process of the dyeing process is simplified and is easy to control, so that the cost of the gradual color change film is low, the product stability is high, and the cost of the housing assembly for achieving the gradual color change effect is low.

In another aspect of an embodiment of the present invention, a method of making a housing assembly for an electronic device is presented. According to an embodiment of the present invention, referring to fig. 5, the manufacturing method includes:

s100: and carrying out first dyeing treatment on the film sheet to obtain the film sheet with a first end having a first color.

In the step, the film sheet is subjected to a first dyeing treatment to obtain a film sheet with a first color at a first end, the concentration of the first color is gradually reduced from the first end to a second end, and the first end is arranged opposite to the second end.

According to an embodiment of the present invention, step S100 may specifically include: s110, carrying out first chemical dip dyeing on the film membrane 300 (acid dyeing liquid contains dye with a first color A), wherein the specific dip dyeing temperature can be 80-85 ℃, the average dip dyeing time can be 1-2 minutes, the first end 301 of the film membrane 300 is firstly dipped into the dyeing liquid, then the film membrane is uniformly extracted from the dyeing liquid at a certain speed, and the film membrane 300 with the single color gradually changes through the uniform change of the dip dyeing time at different positions (the first color A is deeper when the dip dyeing time is longer), so that the film membrane 300 with the single color gradually changes can be obtained; s120, cleaning the film membrane 300 after the first chemical dip dyeing (sequentially cleaning pure water, a weakly alkaline cleaning agent and overflow pure water for multiple times at the cleaning temperature of 45-50 ℃, selecting 1.6A for ultrasonic current, and cleaning for 2 minutes each time), drying, and fixing the first color A. In this way, the first color a can be changed from dark to light from the first end 301 to the second end 302 of the film 300. In some embodiments of the present invention, the first chemical dip may dip only two-thirds of the film web 300 vertically into its dye bath, such that the transparency of the first color a increases to 100% from the first end 301 to two-thirds away from the first end 301.

In some embodiments of the present invention, after step S100, the manufacturing method may include:

s300: and carrying out secondary dyeing treatment on the film sheet to obtain the film sheet with a second end having a second color.

In this step, the film sheet 300 with the single color gradation obtained in step S100 may be subjected to the second dyeing process, and thus, a film sheet 300 with two-color gradation or three-color gradation may be obtained.

According to the embodiment of the present invention, step S300 may specifically include: s310, carrying out second chemical dip dyeing on the film membrane 300 (the acid dyeing solution contains dye with a second color B), wherein the specific dip dyeing temperature can be 80-85 ℃, the average dip dyeing time can be 1-2 minutes, the second end 302 of the film membrane 300 is firstly dipped into the dyeing solution, then the film membrane is uniformly extracted from the dyeing solution at a certain speed, and the film membrane with two colors or three colors is obtained through the uniform change of the dip dyeing time at different positions; s320, cleaning and drying the film membrane 300, and fixing the second color B. In this way, the second color B can be changed from dark to light from the second end 302 to the first end 301 of the film 300.

In some embodiments of the present invention, the second chemical dip may only partially dip the film web vertically into its dye bath such that the transparency of the second color B increases to 100% from the second end 302 to a third away from the second end 302, thereby achieving a color change effect that gradually changes from the first color a to the second color B. In other embodiments of the present invention, the second chemical dip may also vertically dip the other two-thirds of the film web into the dye bath, such that the transparency of the second color B increases to 100% from the second end 302 to the two-thirds thereof away from the second end 302, thereby also achieving the color change effect of changing from the first color a to the superimposed color to the second color B.

S200: the film sheet was adhesively attached to one surface of the light-transmitting housing to obtain a housing assembly.

In this step, the gradient color film sheet 300 fabricated in step S100 is adhesively attached to one surface of the light-transmissive casing 100 to obtain a casing assembly.

In some embodiments of the present invention, before step S200, the manufacturing method may include: s400, silk-screen printing the pattern layer 400 on one surface of the gradient color film membrane 300 manufactured in the step S100, specifically, 70-degree glue scraping can be carried out by using a 450-mesh and 8N-tension silk-screen printing plate, silk-screen type mirror silver ink is selected, and after silk-screen printing, solid baking at 80 ℃ is carried out for 30 minutes; s500, Ultraviolet (UV) light of the optical texture layer 500 is transferred to the surface, away from the film membrane 300, of the pattern layer 400, specifically, a layer of curing glue (the main component of which is polyurethane acrylate) with the thickness of 7-9 microns is uniformly coated on the surface of the pattern layer 400 by using a UV transfer machine, and the curing glue is cured after UV irradiation with energy of 1000-1200 MJ, so that the optical texture layer 500 with a micro-nano structure can be formed on the surface of the film membrane 300; s600, continuously forming a coating layer 600 consisting of at least two layers of niobium oxide, aluminum oxide, titanium dioxide or silicon dioxide on the surface of the optical texture layer 500 away from the film membrane 300 by Physical Vapor Deposition (PVD); s700, performing silk-screen printing of an ink layer on the surface of the film coating layer 600 far away from the film membrane 300, specifically, printing the ink layer on the surface of the film coating layer 600 through a silk-screen printing mode, and baking for 30 minutes at 80 ℃. In this way, the step S200 may be performed by adhering the film 300 to one surface of the light-transmitting casing 100 away from the surface of each layer structure, so as to obtain a casing assembly with a richer appearance effect.

In summary, according to the embodiments of the present invention, a method for manufacturing a housing assembly of an electronic device is provided, in which a dyeing process has a lower device cost, a simpler process, a better visual effect, a stronger transparency and a higher yield, so that the cost for realizing the gradual change of a film diaphragm is lower, and the manufacturing cost is lower while the gradual change effect of the manufactured housing assembly is better.

In another aspect of the embodiments of the present invention, an electronic device is provided.

According to an embodiment of the present invention, referring to fig. 6, the electronic apparatus 1 includes a housing assembly 10 and a display device; the shell assembly comprises a light-transmitting shell, an adhesive layer and a film membrane which are arranged in a stacked mode, wherein the film membrane is provided with a first end and a second end which are arranged oppositely, the first end is provided with a first color, and the concentration of the first color is gradually reduced from the first end to the second end; and the display device 20 is connected to the housing assembly 10.

According to the embodiment of the present invention, the specific type of the electronic device is not particularly limited, such as a mobile phone, a tablet computer, a smart watch, and the like, and those skilled in the art may select the electronic device according to the specific application of the electronic device, which is not described herein again. It should be noted that the electronic device includes other necessary components and structures besides the housing and the display device, for example, a mobile phone, specifically, such as a processor, a memory, a battery, a circuit board, a camera, etc., and those skilled in the art can design and supplement the electronic device accordingly according to the specific type of the electronic device, and details are not described herein.

In summary, according to the embodiments of the present invention, an electronic device is provided, in which a housing assembly of the electronic device has a gradually-changing appearance effect and is manufactured at a lower cost, so that the electronic device has better market competitiveness. It will be appreciated by those skilled in the art that the features and advantages described above with respect to the housing assembly of an electronic device, which are applicable to the electronic device, will not be described in detail herein.

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

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

Claims

1. The shell assembly of the electronic device is characterized by comprising a light-transmitting shell, a glue layer and a film membrane which are arranged in a stacked mode, wherein the film membrane is provided with a first end and a second end which are arranged oppositely, the first end is provided with a first color, and the concentration of the first color is gradually reduced from the first end to the second end.

2. The housing assembly of an electronic device according to claim 1, wherein the material forming the film sheet comprises polyethylene terephthalate, polymethyl methacrylate, and polycarbonate.

3. The housing assembly of an electronic device according to claim 1, wherein the film films have the same thickness.

4. A housing assembly for an electronic device in accordance with claim 1, wherein said second end has a second color, and said second color tapers in intensity from said second end to said first end.

5. The housing assembly of the electronic device as claimed in claim 1, wherein a side of the film sheet facing away from the light-transmissive housing is further provided with a pattern layer, an optical texture layer, a coating layer and an ink layer which are stacked.

6. A method of making a housing assembly for an electronic device, comprising:

carrying out first dyeing treatment on a film sheet to obtain the film sheet with a first color at a first end, wherein the concentration of the first color is gradually reduced from the first end to a second end, and the first end and the second end are arranged oppositely;

and adhering the film membrane to one surface of the light-transmitting shell in an adhesive mode to obtain the shell assembly.

7. The method according to claim 6, wherein the first dyeing step comprises:

carrying out first chemical dip dyeing on a film membrane to obtain the monochromatic film membrane;

and cleaning and drying the film membrane to obtain the film membrane with the first end having the first color.

8. The method of claim 7, wherein the first chemical dip vertically immerses two-thirds of the film web in a first chemical dip dye solution.

9. The method of claim 8, further comprising, after the step of first dyeing, the steps of:

and carrying out secondary dyeing treatment on the film sheet to obtain the film sheet with a second end having a second color.

10. The method according to claim 9, wherein the step of the second dyeing process comprises:

carrying out second chemical dip dyeing on the film membrane to obtain the two-color film membrane;

and cleaning and drying the film membrane to obtain the film membrane with a second end having a second color.

11. The method of claim 10 wherein the second chemical dip vertically dips the other third portion of the film web into a second chemical dip bath.

12. An electronic device, comprising:

the film comprises a first end and a second end which are arranged oppositely, the first end is provided with a first color, and the concentration of the first color is gradually reduced from the first end to the second end;

a display device coupled to the housing assembly.