CN114423207A

CN114423207A - Shell, manufacturing method thereof and electronic equipment

Info

Publication number: CN114423207A
Application number: CN202210178709.5A
Authority: CN
Inventors: 成乐; 吴献明
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-04-29
Anticipated expiration: 2042-02-25
Also published as: CN114423207B

Abstract

The application provides a shell, a manufacturing method thereof and electronic equipment, wherein the shell comprises: the color film comprises a base material, a bottom color layer, a color layer and an appearance layer; the bottom color layer is arranged on one side of the base material; the color layer is arranged on one side of the base color layer, which is far away from the base material; the appearance layer is arranged on one side of the color layer, which is far away from the base material; wherein, through piling up the outward appearance layer that a plurality of printing ink particles on the colour layer formed integrative structure, the surface that outward appearance layer deviates from the colour layer is the wave type and fluctuates form. According to the shell provided by the embodiment of the application, the color layer and the bottom color layer are matched with each other to form rich and full appearance color effect; the surface of the appearance layer is in a wave-shaped fluctuation form, so that the shell can realize the glittering effect and the smooth frosting feeling of the particles; in addition, through piling up the outward appearance layer that a plurality of printing ink particles on the colour layer formed integrative structure, can avoid casing surface to appear fat limit and bad phenomenon such as the crest line is unclear.

Description

Shell, manufacturing method thereof and electronic equipment

Technical Field

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

Background

With the continuous development of electronic devices, electronic devices have become indispensable entertainment tools and social tools in people's daily life. Taking a mobile phone as an example, some mobile phones can be provided with corresponding laminated design on the shell, so as to improve the appearance effect of the mobile phone and bring good visual experience to users. However, the appearance and the expressiveness of the existing mobile phone shell and the user experience are not ideal.

Disclosure of Invention

An aspect of an embodiment of the present application provides a housing, which may be used for an electronic device, where the housing includes: the color film comprises a base material, a bottom color layer, a color layer and an appearance layer; the bottom color layer is arranged on one side of the base material; the color layer is arranged on one side of the bottom color layer, which is far away from the base material; the appearance layer is arranged on one side, away from the base material, of the color layer; wherein, through pile up in a plurality of printing ink particles on the colour layer form an organic whole structure the outward appearance layer, the outward appearance layer deviates from the surface on colour layer is the wave type and fluctuates the form.

Another aspect of the embodiments of the present application provides a method for manufacturing a housing, where the method includes: providing a base material; forming a base color layer on a surface of the substrate; forming a color layer on the surface of the base color layer, which faces away from the base material; forming an appearance layer on the surface of the color layer, which faces away from the substrate; wherein, through be in stack a plurality of printing ink particles in order to form a body structure on the colour layer the outward appearance layer, the outward appearance layer deviates from the surface on colour layer is the wave type and undulates the form.

An embodiment of the present application further provides an electronic device, where the electronic device includes: a display screen and the housing described in the previous embodiments; the display screen is connected with one side of the shell.

According to the shell and the manufacturing method thereof and the electronic device, the color layer and the ground color layer are matched with each other to form rich and full appearance color effects; the surface of the appearance layer is in a wave-shaped fluctuation form, so that the shell can realize the glittering effect and the smooth frosting feeling of the particles; in addition, through piling up the outward appearance layer that a plurality of printing ink particles on the colour layer formed integrative structure, can avoid casing surface to appear fat limit and bad phenomenon such as the crest line is unclear.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an electronic device in some embodiments of the present application;

FIG. 2 is a schematic diagram of the electronic device in FIG. 1 with a split structure;

FIG. 3 is a schematic structural view of a housing according to some embodiments of the present application;

FIG. 4 is a schematic diagram of a laminated structure of the housing in the embodiment of FIG. 3;

FIG. 5 is a schematic diagram of the formation of an appearance layer according to some embodiments of the present application;

FIG. 6 is a schematic structural view of an appearance layer in some embodiments of the present application;

FIG. 7 is a schematic view of a stack of shells according to further embodiments of the present application;

FIG. 8 is a schematic flow chart of a method of making a housing according to some embodiments of the present application;

FIG. 9 is a schematic flow chart illustrating a method of fabricating a housing according to further embodiments of the present application;

FIG. 10 is a block diagram illustrating an electronic device in accordance with further embodiments of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an electronic device 100 according to some embodiments of the present application, and fig. 2 is a schematic structural diagram of the electronic device 100 according to fig. 1.

The electronic device 100 provided in the embodiment of the present application may specifically be a mobile phone, a tablet computer, a notebook computer, and the like, and the following description will be given by taking the electronic device 100 as a mobile phone. The electronic device 100 may include a display screen 10, a center frame 20, and a cover plate 30. Wherein the display screen 10 may be coupled to one side of the middle frame 20, and the cover plate 30 may be coupled to the other opposite side of the middle frame 20. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.

Specifically, the display screen 10 may be used to provide an image display function for the electronic device 100, and the display screen 10 may be covered on one side of the middle frame 20, and may be fixed by an adhesive. The display screen 10 may include a transparent cover plate, a touch panel, and a display panel, which are sequentially stacked. The surface of the transparent cover plate can have the characteristics of flatness and smoothness, so that a user can conveniently perform touch operations such as clicking, sliding and pressing. The transparent cover plate may be made of a rigid material such as glass, or may be made of a flexible material such as Polyimide (PI) or Colorless Polyimide (CPI). The touch panel is disposed between the transparent cover and the display panel, and is configured to respond to a touch operation of a user, convert the touch operation into an electrical signal, and transmit the electrical signal to the processor of the electronic device 100, so that the electronic device 100 can make a corresponding response to the touch operation of the user. The display panel is mainly used for displaying pictures and can be used as an interactive interface to instruct a user to perform the touch operation on the transparent cover plate. The Display panel may adopt an OLED (Organic Light-Emitting Diode) or an LCD (Liquid Crystal Display) to realize an image Display function of the electronic device 100. In this embodiment, the transparent cover plate, the touch panel and the display panel may be attached together by using an optical Adhesive (OCA) or a Pressure Sensitive Adhesive (PSA). Meanwhile, the display screen 10 may be a double curved screen or a four curved screen in appearance to reduce a black edge of the display screen 10 and increase a visible area of the display screen 10. Accordingly, the display screen 10 may be a conventional flat screen, and only the display screen 10 can implement the graphic display function of the electronic device 100.

As shown in fig. 2, the middle frame 20 may include a middle plate 21 and a side frame 22 that are integrally formed, and they may be integrally formed by injection molding, punch forming, heat absorption forming, or the like. The frame 22 may be formed by extending the side wall of the middle plate 21 in the thickness direction of the middle plate 21, so that both sides of the middle frame 20 opposite to each other may form a corresponding open structure. The display screen 10 and the cover plate 30 may cover the open structures on two opposite sides of the middle frame 20, respectively, so as to form an accommodating space of the electronic device 100 together with the middle frame 20. The accommodating space may be used for mounting electronic devices required by the electronic apparatus 100, such as a battery, a sensor, a circuit board, a camera, and the like. In some embodiments, the middle plate 21 and the side frame 22 may also be two independent structural members, and the two may be connected by one of assembling methods such as clamping, bonding, welding, and the like, and a combination thereof. Alternatively, the middle frame 20 may include only the bezel 22.

In addition, the material of the middle frame 20 may be glass, metal, hard plastic, etc., so that the middle frame 20 has a certain structural strength. Because the middle frame 20 is generally directly exposed to the external environment, the middle frame 20 may also have certain wear-resistant, corrosion-resistant, scratch-resistant, and other properties, or the outer surface of the middle frame 20 (i.e., the outer surface of the electronic device 100) may be coated with a layer of functional material for wear-resistant, corrosion-resistant, scratch-resistant, and the like. In addition, in some embodiments, a corresponding brand identifier (LOGO) may be further disposed on the middle frame 20 to beautify the appearance of the electronic device 100 and improve brand recognition.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a housing 40 according to some embodiments of the present disclosure.

The housing 40 may be the middle frame 20 of the electronic device 100 in the foregoing embodiments, and preferably, the housing 40 may be the frame 22 of the middle frame 20. Of course, in other embodiments, the housing 40 may also be the cover plate 30 of the electronic device 100 in the previous embodiments, for example, a battery cover or a rear cover.

It can be understood that the structural configuration based on the middle frame 20 is complex compared to the cover plate 30, and compared to the cover plate 30, the appearance effect of the lamination formed on the surface of the frame 22 of the middle frame 20 by the conventional transfer printing, rubbing, and the like is poor, which is not favorable for the overall appearance of the electronic device 100.

Therefore, the electronic device 100 can have better appearance expression by adjusting the appearance surface lamination structure and the manufacturing process of the frame 22 in the embodiment of the present application.

The housing 40 in the embodiment of the present application takes the frame 22 of the electronic device 100 as an example. Of course, in other embodiments, the housing 40 may also be an enclosure, such as the cover 30, of the electronic device 100.

The bezel 22 is connected to the display screen 10 and the cover 30 of the electronic device 100, respectively, and generally includes four edges connected end to end, and the adjacent edges are in smooth transition. Specifically, the frame 22 generally includes a first side 22a, a second side 22b, a third side 22c, and a fourth side 22d connected end to end. The first side 22a is disposed opposite to and substantially parallel to the third side 22c, and the second side 22b is disposed opposite to and substantially parallel to the fourth side 22 d. It can be understood that, based on the above structure of the frame 22, when the appearance surface is formed on the surface of the frame 22, the appearance surfaces are required to be formed on four sides of the frame respectively, and the appearance surfaces on the four sides can be smoothly spliced into the required pattern by means of the corresponding positioning jig, so that influence on appearance expressive force caused by pattern dislocation or inclination and the like is avoided.

Referring to fig. 4, fig. 4 is a schematic diagram of a laminated structure of the housing 40 in the embodiment of fig. 3, where the housing 40 may be a housing of an electronic device 100 such as a frame 22, a cover 30, and the like.

The housing 40 generally includes a substrate 41, a base color layer 42 provided on a side of the substrate 41, a color layer 43 provided on a side of the base color layer 42 facing away from the substrate 41, and an appearance layer 44 provided on a side of the color layer 43 facing away from the substrate 41.

The substrate 41 may include a first surface 411 and a second surface 412 disposed opposite to each other, the first surface 411 may be a surface of the housing 40 facing away from the display screen 10 and exposed to the electronic device 100, and the second surface 412 may be a surface of the housing 40 close to the display screen 10 and hidden in the electronic device 100. Wherein the base color layer 42 is disposed on the first surface 411 of the substrate 41. It should be noted that the terms "first" and "second" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

The material of the substrate 41 may be Glass Fiber (GF), Polycarbonate (PC), polymethyl methacrylate (PMMA), Nylon (PA), Glass, metal, or other structural materials. Those skilled in the art can select different materials of the substrate 41 according to different requirements to adapt to the housing 40 in different application scenarios.

Preferably, when the substrate 41 is a plastic substrate, the housing 40 can be formed quickly and efficiently by an injection molding process. When the substrate 41 is a metal substrate, the case 40 may be formed by a machining process or the like. Of course, the housing 40 may be formed by other processes, which are not described in detail.

In one embodiment, the substrate 41 may be made of a mixture of two or more materials to improve the structural performance of the substrate 41. Specifically, the base material 41 may be made by mixing a main material and an auxiliary material. The main material may be a material having high toughness such as resin (e.g., PC or PMMA) or fiber (e.g., PA), and the auxiliary material may be a material having high mechanical strength such as GF. The base material 41 is made by mixing the main material and the auxiliary material, so that the base material 41 has high mechanical strength while having high toughness. For example, the substrate 41 may be formed by molding PC and GF particles, or the substrate 41 may be formed by molding PA and GF particles. It is understood that the larger the additive amount of the auxiliary material, the less the toughness of the base material 41 as a whole is exhibited. Based on this, the toughness and mechanical strength requirements of the base material 41 are integrated by controlling the mixing ratio of the main material and the auxiliary material.

Taking PC as a main material and GF as an auxiliary material, the base material 41 formed by adding GF to PC has good toughness but relatively poor mechanical strength, and the mechanical strength of the base material 41 can be enhanced by adding GF to PC. The weight ratio of GF to PC is approximately 10% to 30%, and for example, the weight of GF may be 10%, 15%, 20%, 25%, 30% or the like of the weight of PC.

In the case where the main material is PA and the auxiliary material is GF, the substrate 41 formed by adding GF to PA has relatively low mechanical strength, although PA has relatively high toughness, and the mechanical strength of the substrate 41 can be enhanced by adding GF to PA. The weight ratio of GF to PA is approximately 10% to 30%, and for example, the weight of GF may be 10%, 15%, 20%, 25%, 30%, or the like, based on the weight of PA.

It is to be understood that the above embodiments only illustrate the mixing ratio of the main material and the auxiliary material in the base material 41, but the present invention is not limited thereto. The material and process are used to form the outer shape of the substrate 41, i.e. to form the contour of the housing 40.

The base color layer 42 may be formed on the first surface 411 of the substrate 41 through a spray coating process and may serve as a shielding layer to shield devices inside the electronic device 100, so that the color of the base color layer 42 may be developed outside the electronic device 100. Of course, the base color layer 42 can also be mutually set off with the color layer 43 to make the overall appearance color richer and fuller. In addition, the bottom color layer 42 can also serve as a top-bottom connection to make the lamination connection on the substrate 41 more tight. Wherein the thickness of the base color layer 42 is typically 5-15 microns, such as 7 microns, 10 microns, 14 microns, and the like.

Of course, in other embodiments, the bottom color layer 42 may also be formed on the first surface 411 of the substrate 41 by dip dyeing, silk-screen printing, or 3D printing, which is not described in detail.

The material of the base color layer 42 substantially includes: 50-70 parts of 2-3 functional polyurethane acrylate, 5-15 parts of 2-3 functional active monomers, 0.5-1.5 parts of photoinitiator, 0.5-3 parts of auxiliary agent and 20-40 parts of solvent.

Wherein, the photoinitiator generates active free radicals or cations after absorbing ultraviolet light or visible light energy, and initiates the polymerization of double bonds in the prepolymer or the active monomer. The photoinitiator can be selected from 2, 4, 6-trimethylbenzoyl diphenylphenoxy phosphine, 2, 4, 6-trimethylbenzoyl diphenylphosphine oxide, diphenyl- (2, 4, 6-trimethylbenzoyl) phosphine oxide, 2-methyl-1- [4- (methylthio) phenyl ] -2- (4-morpholinyl) -1-acetone, Icagehili 907, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-acetone, 2-methyl-1- (4-methylthiophenyl) -2-morpholine-1-acetone, IHT-PI907, 2-methyl-2- (4-morpholinyl) -1- [4- (methylthio) phenyl ] -1-acetone, and N-methyl-1- [4- (methylthio) phenyl ] -1-acetone, 2-methyl-4-methylthio-2-morpholinopropiophenone or 2-methyl-1- [ 4-methylthiophenyl ] -2-morpholinopropan-2-one.

Preferably, the photoinitiator may be one or more of photoinitiator TPO (2, 4, 6-trimethylbenzoyl-diphenylphosphine oxide), photoinitiator ITX (2 isopropyl thioxanthone (2, 4 isomer mixture)), photoinitiator 819 (phenylbis (2, 4, 6-trimethylbenzoyl) phosphine oxide), and an active amine.

The auxiliary agent can be one or more of antifoaming agents, leveling agents, polymerization inhibitors and the like.

The solvent can be one or more of ethyl acetate, butyl acetate, propylene glycol methyl ether acetate, butanone, isopropanol, ethylene glycol butyl ether, etc.

In one embodiment, the base color layer 42 is formed by uniformly mixing 2-3 functional urethane acrylate, 2-3 functional reactive monomer, photoinitiator, auxiliary agent and solvent according to the above weight parts ratio and then spray-coating the mixture on the surface of the substrate 41. Wherein the thickness of the coating is approximately 5-10 microns, the coating needs to be baked for 5-15 minutes at 55-65 ℃ after the coating, and the coating is cured by a mercury lamp, and the curing energy of the mercury lamp is approximately 300-700mj/cm²。

The color layer 43 may be formed on the surface of the base color layer 42 facing away from the substrate 41 by a spray coating process. The color layer 43 can be a transparent or semi-transparent color ink layer. For example, the color oil may be blended according to the corresponding color, added to the ink main body, mixed well, and then sprayed on the base color layer 42 uniformly, so that the color layer 43 can cooperate with the base color layer 42 to form rich and full appearance color effect.

Of course, in other embodiments, the color layer 43 may also be formed on the surface of the ground color layer 42 away from the substrate 41 by dip dyeing, silk-screen printing, or 3D printing, which is not described in detail.

In an embodiment, the color layer 43 may be made of colored ink, so that the color layer 43 may form a color pattern or a gradient color pattern according to an expected requirement, thereby enriching the appearance color pattern of the housing 40 and improving the overall appearance expressive force of the electronic device. The color layer 43 may use colored ink to form a color pattern or a gradient color pattern, or the color layer 43 may be formed by adding colored oil of a corresponding color to colorless ink. For example, when a khausen-colored oil is desired, a yellow toner, a red toner, a blue toner, and a solvent may be mixed to produce the khausen-colored oil. When a rose-gold colored oil is desired, a yellow toner, a violet toner, and a solvent may be mixed to produce the rose-gold colored oil. Of course, for other color oils, the color oil can be prepared by blending the toners of the corresponding colors according to the needs.

The material of the color layer 43 substantially includes: 60-80 parts of resin mixture, 1-5 parts of color paste, 0.5-1.5 parts of auxiliary agent and 30-50 parts of solvent.

The resin mixture can be formed by mixing hydroxyl acrylic resin and polyurethane acrylic resin, and the mixing ratio of the two resins is approximately 1:2 to 1: 4. The auxiliary agent can be one or more of antifoaming agents, leveling agents, polymerization inhibitors and the like. The solvent can be one or more of ethyl acetate, propylene glycol methyl ether acetate, cyclohexanone, ethylene glycol monobutyl ether, and the like.

In one embodiment, the color layer 43 can be formed by uniformly mixing the resin mixture, the color paste, the auxiliary agent, and the solvent according to the above weight ratio, and then spraying the mixture onto the surface of the base color layer 42. Wherein the spraying thickness of the color layer 43 is approximately 5-15 μm, the color layer needs to be baked at 50-70 deg.C for 3-8min after spraying, and then cured by mercury lamp, the curing energy is approximately 100-300mj/cm²。

The appearance layer 44 can be formed on the surface of the color layer 43 opposite to the bottom color layer 42 by a printing process, and the surface of the appearance layer 44 facing away from the color layer 43 is substantially in an undulating shape, so that the grain touch of the shell 40 and the appearance effect of grain glitter can be realized. In addition, the appearance layer 44 can also serve as a protection layer to protect the color layer 43 so as to prevent the color layer 43 from being damaged by external factors.

The material of the appearance layer 44 substantially includes: 10-40% of resin, 40-75% of monomer, 3-12% of photoinitiator and 0.5-2% of auxiliary agent. Further, a printing ink is formed by uniformly mixing the resin, the monomer, the photoinitiator, and the auxiliary agent in the above-mentioned weight ratio, and is printed on the surface of the color layer 43 with an inkjet printer to form the appearance layer 44. Preferably, the viscosity of the printing ink is generally 7 to 30 mps.

It is understood that the resin is the most important factor affecting the surface hardness and abrasion resistance of the appearance layer 44, and the resin ratio is too low, the abrasion resistance is too poor, the resin ratio is too high, the viscosity of the printing ink is too high, the printing effect is poor, and the adhesion is deteriorated. In one embodiment, the resin may be 3-9 functional urethane acrylate, epoxy acrylate, or other resins.

The monomer mainly plays the effect of diluting, and the printing shower nozzle of the inkjet printer of being convenient for can jet printing ink smoothly, can also have stronger corrosivity simultaneously to in the adhesive force of promotion printing ink. In addition, the higher functional monomer may also enhance the abrasion resistance of the appearance layer 44 to some extent.

In one embodiment, the monomer may be one or more of 1, 6-hexanediol diacrylate (HDDA), isobornyl acrylate (IBOA), dipentaerythritol hexaacrylate (DPHA), tetrahydrofuran acrylate (THFA), N-vinyl pyrrolidone (NVP), and trimethylol cyclohexyl acrylate (TMCHA).

The photoinitiator generates active free radicals or cations after absorbing ultraviolet light or visible light energy, and initiates the polymerization of double bonds in the prepolymer or the active monomer. In one embodiment, the photoinitiator is one or more of TPO, ITX, 819, a reactive amine.

The resin, the monomer, the photoinitiator, and the auxiliary agent are uniformly mixed to form a liquid printing ink, and the liquid printing ink is ejected by an ink jet printer to form a granular printing ink on the color layer 43. Based on the fluidity of the liquid state, the granular printing ink can be flattened on the color layer 43 to form projections like island-like grains. After the ink jet printer performs printing repeatedly, the appearance layer 44 with a surface in a wavy state similar to a wavy plane can be finally formed, and thus the granular texture of the appearance surface of the shell 40 can be improved. In addition, the printing ink is approximately in a transparent state, and can show the effect of particle flashing under the irradiation of light.

Further, in order to avoid the appearance layer 44, which is the appearance surface of the case 40, from being fattened and having unclear ridges, the printing ink ejected on the color layer 43 is formed into the appearance layer 44 by a method of printing or drying. Specifically, in the process of performing the reciprocating printing on the color layer 43 a plurality of times, the curing device performs the synchronous reciprocating motion to perform the synchronous curing of the ink printed on the color layer 43. For example, the curing device can be a UV curing lamp, and this UV curing lamp can carry out synchronous reciprocating motion along with inkjet printer's shower nozzle to carry out synchronous solidification to the printing ink that the shower nozzle jetted on colour layer 43, can avoid appearance layer 44 to appear fat limit, bad phenomenon such as crest line is unclear with this. This is because, in the printing ink drying mode, the horizontal flow range of the printing ink on the color layer is limited, and it is possible to avoid local ink accumulation or edge ink accumulation, and further, to avoid the appearance layer 44 from having undesirable phenomena such as fat edges, unclear ridge lines, and the like.

Referring to fig. 5 and 6, fig. 5 is a structural diagram illustrating a forming process of the appearance layer 44 according to some embodiments of the present disclosure, and fig. 6 is a structural diagram illustrating the appearance layer 44 according to some embodiments of the present disclosure. The appearance layer 44 generally includes a plurality of ink particles 51 stacked on the color layer 43, and the plurality of ink particles 51 are stacked on the color layer 43 to form the appearance layer 44. The ink particles 51 have an arc surface, so that the surface of the appearance layer 44 facing away from the color layer 43 can be undulated.

Specifically, the inkjet printer ejects the printing ink on the color layer 43 in the form of droplets 52, the droplets 52 are dropped on the color layer 43 and spread out to form the ink particles 51, and the shape of the ink particles 51 may be similar to an island-shaped convex structure or a flat-shaped convex structure, that is, the ink case 51 may have a substantially arc-shaped surface. The inkjet printer reciprocates to eject a plurality of droplets 52 onto the color layer 43 to form a plurality of ink particles 51, and the plurality of ink particles 51 can be uniformly stacked on the color layer 43 to form the appearance layer 44.

Wherein, during the formation of the appearance layer 44, the inkjet printer reciprocates to eject the liquid droplets 52 onto the color layer 43 and form the ink particles 51, and the curing device can move synchronously with the ejecting device (e.g., the head) of the inkjet printer to synchronously pre-cure the ink particles 51 on the color layer 43. In other words, the ink particles 51 are formed by ejecting the liquid droplets 52 onto the color layer 43 by the ejection device, and the ink particles 51 are cured by the curing device, wherein the curing device reciprocates synchronously with the ejection device so that the ink particles are uniformly stacked and cured synchronously during the stacking process. After printing is completed, the pre-cured appearance layer 44 is substantially formed on the color layer 43, and then the pre-cured appearance layer 44 is sufficiently cured. For example, the appearance layer 44 may be sufficiently cured by a mercury lamp, at which the curing energy is approximately 600-²。

The ink particles 51 formed by ejecting the droplets 52 onto the color layer 43 are hardly visible on the appearance layer 44 finally formed, that is, the appearance layer 44 is an integral structure in appearance. This is because suction force is generated based on the surface tension of the ink particles 51, and the adjacent ink particles 51 are pulled and adsorbed to one body, thereby visually exhibiting unity.

Preferably, the ink particles 51 are in the form of transparent particles, so that the appearance layer 44 can achieve a glittering effect under the irradiation of light. Of course, in other embodiments, color paste may be added to the material of the appearance layer 44, i.e., the ink particles 51 may be colored particles, so as to achieve the glittering effect of the colored particles. In some embodiments, the colored appearance layer 44 can cooperate with the color layer 43 to achieve a variety of color-free gradations, pattern customizations, and the like appearance effects.

Further, during ink printing, the size of the droplets 52 can be controlled by adjusting the amount of spray applied. It can be understood that when the droplets 52 are too small, the appearance surface of the appearance layer 44 is too fine and the granular touch is not obvious; when the liquid droplets 52 are too large, the appearance surface of the appearance layer 44 is too rough, which affects the appearance and feel. Based on this, in some embodiments, the diameter of the droplet 52 is generally controlled to be about 10-80 μm, and during the ink printing process, the droplet 52 spreads out to form the ink particles 51 when it lands on the color layer 43, i.e. similar to the spreading effect of the droplet landed on the plane. At this time, the thickness of the ink particles 51 corresponding to the projections of the color layer 43 is extremely small, and is generally not more than 5 μm, so that the appearance surface of the appearance layer 44 can exhibit a smooth frosted feeling. The thickness of the appearance layer 44 is generally 5 to 25 μm, and may be, for example, 10 μm, 15 μm, 20 μm, or the like.

Wherein the surface roughness of the appearance layer 44 facing away from the color layer 43 is approximately 8-20 μm to achieve a smooth frosted feel. For example, the surface roughness of the appearance layer 44 is approximately 15 μm.

The shell and the electronic equipment provided in the embodiment of the application are mutually matched with the bottom color layer through the color layer to form rich and full appearance color effects, and the color layer can form color patterns, gradient color patterns or customized patterns and the like through colored ink. The appearance layer is arranged, so that the shell can realize the glittering effect and the smooth frosting feeling of the particles on the visual appearance. In addition, the appearance layer with an integral structure is formed by a plurality of printing ink particles stacked on the color layer, so that the phenomena of fat edges, unclear ridge lines and the like can be avoided; the color layer and the appearance layer are mutually matched to realize the effects of arbitrary gradual change of various colors, customizable patterns and the like. Further, when the casing outward appearance need present the dull effect of light, can set up the partly not printing region on the colour layer, the printing ink granule piles up the printing region in the partial region on colour layer promptly, so make not printing the region and can present the plain noodles effect, print the region and can present the dull effect, further richen the outward appearance expressive force of casing.

Referring to fig. 7, fig. 7 is a schematic view of a laminated structure of a housing 40 in other embodiments of the present application, wherein the difference between the embodiment of fig. 7 and the housing 40 in the embodiment of fig. 4 is: housing 40 in the embodiment of fig. 7 may also include a coating 45 disposed between base color layer 42 and color layer 43.

Specifically, the case 40 roughly includes a base 41, a base color layer 42 provided on one side of the base 41, a coat layer 45 provided on one side of the base color layer 42 facing away from the base 41, a color layer 43 provided on one side of the coat layer 45 facing away from the base 41, and an appearance layer 44 provided on one side of the color layer 43 facing away from the base 41.

The coating layer 45 may be an optical coating formed on the surface of the ground color layer 42 facing away from the substrate 41 by an electroplating process (e.g., an evaporation coating process, a magnetron sputtering coating process, etc.) or a sputtering process, and the optical coating may be used to refract or reflect light passing through the coating layer 45 to form a better metal-like shadow effect. The target material can be at least one selected from silicon, titanium, indium, silicon oxide, titanium oxide and indium oxide. In addition, the optical coating film can be of a single-layer structure or a multi-layer structure, and the targets of different layers can be the same or different.

In one embodiment, the thickness of the coating 45 is approximately 10-30 nm, such as 15 nm, 20 nm, 25 nm, etc. Wherein the resistance of the plating layer 45 is generally greater than 1000M Ω.

Color layer 43 is formed on the surface of coating layer 45 opposite to base color layer 42. The appearance layer 44 is formed on the side of the color layer 43 away from the coating layer 45, and the surface of the appearance layer 44 away from the color layer 43 is approximately in an undulated form. It is understood that, for technical features of the housing 40 in the present embodiment that are not described in detail, reference may be made to the detailed description of the housing 40 in the foregoing embodiment, and thus, detailed description is not repeated here. The casing that this application embodiment provided, through the coating film layer between base colour layer and colour layer, can further realize the appearance effect of the imitative metal feel of casing surface.

Referring to fig. 8, fig. 8 is a flow chart illustrating a method for manufacturing a housing according to some embodiments of the present application, which can be used to manufacture the housing 40 according to the previous embodiments.

The manufacturing method can roughly comprise the following steps:

s801, providing a substrate, wherein the substrate can be a plastic substrate, and the shape of the substrate can be manufactured through an injection molding process. The specific technical features of the substrate can refer to the specific descriptions in the foregoing embodiments, and thus are not repeated herein.

And S802, forming a bottom color layer on the surface of the base material. Wherein, the base color layer can be formed on the surface of the substrate by coating, printing, spraying or the like. For specific technical features of the bottom color layer, reference may be made to the detailed description in the foregoing embodiments, and thus, detailed description is omitted here.

And S803, forming a color layer on the surface of the base color layer, which is far away from the base material. Wherein, the color layer can be formed on the surface of the base color layer, which is far away from the base material, by coating, printing, spraying or other processes. For the specific technical features of the color layer, reference may be made to the detailed description in the foregoing embodiments, and thus, detailed description is omitted.

And S804, forming an appearance layer on the surface of the color layer, which is far away from the base material. The appearance layer can be formed on the surface of the color layer, which faces away from the substrate, through an ink jet printing process. For specific technical features of the appearance layer, reference may be made to the detailed description in the foregoing embodiments, and thus, detailed description is omitted.

It should be noted that, for technical features not described in detail in this embodiment, reference may be made to the detailed description in the foregoing embodiment, and therefore, repeated description is not repeated in this embodiment.

Referring to fig. 9, fig. 9 is a schematic flow chart illustrating a method for manufacturing a housing according to another embodiment of the present application, where the method can be used to manufacture the housing 40 according to the previous embodiment.

The manufacturing method can roughly comprise the following steps:

s901, a substrate is provided, and the step can refer to step S801.

S902, a base color layer is formed on the surface of the substrate, and the step can refer to step S802.

And S903, forming a coating layer on the surface of the base color layer, which is far away from the base material. Wherein, the optical coating formed on the surface of the bottom color layer, which is far away from the base material, can be formed by electroplating process, sputtering process or the like. For the specific technical features of the plated layer, reference may be made to the detailed description in the foregoing embodiments, and thus, the detailed description is omitted.

And S904, forming a color layer on the surface of the coating layer, which is far away from the substrate, and the step can refer to the step S803.

S905, forming an appearance layer on the surface of the color layer away from the substrate, which may refer to step S804.

The housing, the manufacturing method thereof and the electronic device provided by the embodiment form rich and full appearance color effects by the mutual matching of the color layer and the ground color layer, and the color layer can form color patterns, gradient color patterns or customized patterns and the like by colored ink. The appearance layer is arranged to realize the particle flashing effect, the smooth particle texture and the frosted feeling on the visual appearance of the shell. In addition, by printing the appearance layer on the color layer, the phenomena of fat edges, unclear ridge lines and the like can be avoided; the color layer and the appearance layer are mutually matched to realize the effects of arbitrary gradual change of various colors, customizable patterns and the like. The coating layer between the base color layer and the color layer can further realize the appearance effect of the metal-like texture of the outer surface of the shell.

In addition, the embodiment of the application also provides electronic equipment. Referring to fig. 10, fig. 10 is a block diagram illustrating a structure of an electronic device 900 according to another embodiment of the present application.

The electronic device may be, for example, a mobile electronic device, which may include: a memory 901, a processor (CPU) 902, a circuit board (not shown), a power supply circuit, and a microphone 913. The circuit board is arranged in a space enclosed by the shell; the CPU902 and the memory 901 are provided on a circuit board; the power supply circuit is used for supplying power to each circuit or device of the electronic equipment; the memory 901 is used for storing executable program codes; the CPU902 executes a computer program corresponding to the executable program code by reading the executable program code stored in the memory 901 to recognize the above-described identification information to implement the unlocking and wake-up functions.

The electronic device may further include: peripheral interface 903, RF (Radio Frequency) circuitry 905, audio circuitry 906, speakers 911, power management chip 908, input/output (I/O) subsystems and other input/control devices, touch screen 912, other input/control devices 910, and external port 904, which communicate via one or more communication buses or signal lines 907. The touch screen 912 may be the display screen 10 in the foregoing embodiments.

The memory 901 may be accessed by the CPU902, the peripheral interface 903, and the like, and the memory 901 may include high-speed random access memory and may also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other volatile solid-state storage devices. The peripherals interface 903 may connect input and output peripherals of the device to the CPU902 and the memory 901.

The I/O subsystem 909 may connect input and output peripherals on the device, such as the touch screen 912 and other input/control devices 910, to the peripheral interface 903. The I/O subsystem 909 may include a display controller 9091 and one or more input controllers 9092 for controlling other input/control devices 910. Where one or more input controllers 9092 receive electrical signals from or send electrical signals to other input/control devices 910, the other input/control devices 910 may include physical buttons (push buttons, rocker buttons, etc.), dials, slide switches, joysticks, click wheels. It is worth noting that the input controller 9092 may be connected with any one of the following: a keyboard, an infrared port, a USB interface, and a pointing device such as a mouse.

Touch screen 912 is an input and output interface between the user electronic device and the user, displaying visual output to the user, which may include graphics, text, icons, video, and the like.

The display controller 9091 in the I/O subsystem 909 receives electrical signals from the touch screen 912 or transmits electrical signals to the touch screen 912. The touch screen 912 detects a contact on the touch screen, and the display controller 9091 converts the detected contact into an interaction with a user interface object displayed on the touch screen 912, that is, to implement a human-computer interaction, where the user interface object displayed on the touch screen 912 may be an icon for running a game, an icon networked to a corresponding network, or the like.

The RF circuit 905 is mainly used to establish communication between the mobile phone and the wireless network (i.e., network side), and implement data reception and transmission between the mobile phone and the wireless network. Such as sending and receiving short messages, e-mails, etc. In particular, RF circuitry 905 receives and transmits RF signals, also referred to as electromagnetic signals, through which RF circuitry 905 converts electrical signals to or from electromagnetic signals and communicates with a communication network and other devices. The RF circuitry 905 may include known circuitry for performing these functions including, but not limited to, an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC (CODEC) chipset, a Subscriber Identity Module (SIM), and so forth.

The audio circuit 906 is mainly used to receive audio data from the peripheral interface 903, convert the audio data into an electric signal, and transmit the electric signal to the speaker 911. The speaker 911 is used to convert the voice signal received by the mobile phone from the wireless network through the RF circuit 905 into sound and play the sound to the user. And the power management chip 908 is used for supplying power and managing power to the hardware connected with the CPU902, the I/O subsystem and the peripheral interfaces.

It is understood that technical features not described in detail with respect to the electronic device 900 may refer to the electronic device 100 in the foregoing embodiment, and thus are not described in detail.

It is noted that the terms "comprises" and "comprising," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A housing applied to an electronic device, the housing comprising:

a substrate;

the bottom color layer is arranged on one side of the base material;

the color layer is arranged on one side, away from the base material, of the ground color layer; and

the appearance layer is arranged on one side, away from the base material, of the color layer;

wherein, through pile up in a plurality of printing ink particles on the colour layer form an organic whole structure the outward appearance layer, the outward appearance layer deviates from the surface on colour layer is the wave type and fluctuates the form.

2. The housing of claim 1, wherein the ink particles are made of a material comprising: 10-40% of resin, 40-75% of monomer, 3-12% of photoinitiator and 0.5-2% of auxiliary agent.

3. The housing of claim 2, wherein the ink pellets further comprise a color paste.

4. The housing of claim 1, wherein the surface roughness of the appearance layer facing away from the color layer is 8-20 μ ι η.

5. The housing of claim 1, wherein the material of the base color layer comprises: 50-70 parts of 2-3 functional polyurethane acrylate, 5-15 parts of 2-3 functional active monomers, 0.5-1.5 parts of photoinitiator, 0.5-3 parts of auxiliary agent and 20-40 parts of solvent.

6. The housing of claim 1, wherein the color layer is made of a material comprising: 60-80 parts of resin mixture, 1-5 parts of color paste, 0.5-1.5 parts of auxiliary agent and 30-50 parts of solvent.

7. The housing of any of claims 1-6, further comprising a coating disposed between the base color layer and the color layer.

8. The housing of claim 7, wherein the housing is a bezel of the electronic device.

9. A method of making a housing, the method comprising:

providing a base material;

forming a base color layer on a surface of the substrate;

forming a color layer on the surface of the base color layer, which faces away from the base material;

forming an appearance layer on the surface of the color layer, which faces away from the substrate;

wherein, through be in stack a plurality of printing ink particles in order to form a body structure on the colour layer the outward appearance layer, the outward appearance layer deviates from the surface on colour layer is the wave type and undulates the form.

10. The manufacturing method according to claim 9, wherein an ink particle is formed by ejecting a droplet onto the color layer by an ejection device, and the ink particle is cured by a curing device, wherein the curing device reciprocates synchronously with the ejection device.

11. An electronic device, characterized in that the electronic device comprises: a display screen and the housing of any one of claims 1-8; the display screen is connected with one side of the shell.