CN114423207B

CN114423207B - Shell, manufacturing method thereof and electronic equipment

Info

Publication number: CN114423207B
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: 2024-04-05
Anticipated expiration: 2042-02-25
Also published as: CN114423207A

Abstract

The application provides a casing and manufacturing method thereof, electronic equipment, the casing includes: a substrate, a base color layer, a color layer, and an appearance layer; the ground 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 away from the base material; the appearance layer is arranged on one side of the color layer, which is away from the base material; wherein, through a plurality of printing ink particles that pile up on the colour layer form the outward appearance layer of integral structure, the surface that the outward appearance layer deviates from the colour layer is wave type relief form. The shell provided by the embodiment of the application is mutually matched with the ground color layer through the color layer to form rich and full appearance color effects; the shell can realize the flashing effect of particles and smooth frosting sense by arranging the surface of the appearance layer to be in a wavy form; in addition, the appearance layer of an integrated structure is formed by a plurality of ink particles stacked on the color layer, so that the phenomena of fat edges, unclear edges and the like on the surface of the shell can be avoided.

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, the electronic devices have become an indispensable entertainment tool and social tool in daily life of people. Taking a mobile phone as an example, some shells of the mobile phones can be correspondingly laminated to improve the appearance effect of the mobile phones, so that good visual experience is brought to users. However, the existing mobile phone housing has a less than ideal appearance and user experience.

Disclosure of Invention

In one aspect, embodiments of the present application provide a housing, which may be used in an electronic device, the housing including: a substrate, a base color layer, a color layer, and an appearance layer; the ground color layer is arranged on one side of the base material; the color layer is arranged on one side of the ground color layer, which is away from the base material; the appearance layer is arranged on one side of the color layer, which is away from the base material; the surface of the appearance layer, which is away from the color layer, is in a wavy undulating form.

In another aspect, an embodiment of the present application provides a method for manufacturing a housing, where the method includes: providing a substrate; forming a base color layer on the surface of the base material; forming a color layer on a surface of the base color layer facing away from the substrate; forming an appearance layer on a surface of the color layer facing away from the substrate; the surface of the appearance layer facing away from the color layer is in a wavy undulating form through stacking a plurality of ink particles on the color layer to form the appearance layer of an integral structure.

The embodiment of the application also provides electronic equipment, which comprises: a display screen and the housing described in the foregoing embodiments; the display screen is connected with one side of the shell.

According to the shell, the manufacturing method thereof and the electronic equipment, the color layer and the ground color layer are matched with each other to form a rich and full appearance color effect; the shell can realize the flashing effect of particles and smooth frosting sense by arranging the surface of the appearance layer to be in a wavy form; in addition, the appearance layer of an integrated structure is formed by a plurality of ink particles stacked on the color layer, so that the phenomena of fat edges, unclear edges and the like on the surface of the shell can be avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is a schematic diagram of a structural separation of the electronic device in the embodiment of FIG. 1;

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

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

FIG. 5 is a schematic view of a process for forming an appearance layer in some embodiments of the present application;

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

FIG. 7 is a schematic view of a laminated structure of a housing according to other embodiments of the present application;

FIG. 8 is a flow chart of a method of fabricating a housing in some embodiments of the present application;

FIG. 9 is a flow chart of a method of manufacturing a housing according to other embodiments of the present application;

fig. 10 is a block diagram schematically illustrating the structure of an electronic device in other embodiments of the present application.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustration of the present application, but do not limit the scope of the present application. Likewise, the following embodiments are only some, but not all, of the embodiments of the present application, and all other embodiments obtained by one of ordinary skill in the art without making any inventive effort 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 may be included in at least one embodiment of the present application. The appearances of such phrases 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, a device 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, such as for example, 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 configured to communicate through 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, satellites or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. The mobile phone is the electronic equipment provided with the 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 exploded view of the electronic device 100 according to the embodiment of fig. 1.

The electronic device 100 provided in the embodiment of the present application may be a mobile phone, a tablet computer, a notebook computer, and other devices, and the following description will be made with the electronic device 100 as a mobile phone. The electronic device 100 may include a display screen 10, a center 20, and a cover 30. Wherein, the display screen 10 may be connected to one side of the middle frame 20, and the cover plate 30 may be connected to the other opposite side of the middle frame 20. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes 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 the two may be adhered and 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 smoothness, so that a user can conveniently perform touch operations such as clicking, sliding and pressing. The transparent cover plate may be made of rigid material such as glass, or flexible material such as Polyimide (PI) and colorless Polyimide (Colorless Polyimide, CPI). The touch panel is disposed between the transparent cover plate and the display panel, and is configured to respond to a touch operation of a user, and convert the corresponding 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 respond to the touch operation of the user. The display panel is mainly used for displaying pictures and can be used as an interactive interface for indicating a user to perform the touch operation on the transparent cover plate. The display panel may employ 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 bonded together by using an adhesive such as OCA (Optically Clear Adhesive, optical adhesive), PSA (Pressure Sensitive Adhesive ) or the like. Meanwhile, the display screen 10 may be a hyperboloid screen or a quadric 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 panel screen, and only the display screen 10 is required to 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 which are integrally formed by injection molding, press molding, heat absorption molding, and the like. The frame 22 may be formed by extending a side wall of the middle plate 21 in a thickness direction of the middle plate 21, so that two opposite sides of the middle frame 20 may form a corresponding open structure. The display screen 10 and the cover plate 30 may be respectively covered on the open structures at two opposite sides of the middle frame 20, so as to form a containing space of the electronic device 100 together with the middle frame 20. The accommodating space may be used for mounting electronic devices such as a battery, a sensor, a circuit board, a camera, etc., which are required for the electronic apparatus 100. In some embodiments, the middle plate 21 and the frame 22 may also be two independent structural members, and the two structural members may be connected by one of assembling manners such as clamping, bonding, welding, and the like, and a combination thereof. Alternatively, the middle frame 20 may include only the rim 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 a certain performance of wear resistance, corrosion resistance, scratch resistance, etc., or a layer of functional material for wear resistance, corrosion resistance, scratch resistance may be coated on the outer surface of the middle frame 20 (i.e., the outer surface of the electronic device 100). In addition, in some embodiments, a corresponding brand identification (LOGO) may be further disposed on the middle frame 20 to beautify the appearance of the electronic device 100 and improve the brand recognition.

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

The housing 40 may be the middle frame 20 of the electronic device 100 in the foregoing embodiment, 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 30 of the electronic device 100 in the foregoing embodiment, for example, a battery cover or a rear cover.

It can be appreciated that, based on the structural shape of the middle frame 20 being relatively complex relative to the cover plate 30, the surface of the frame 22 of the middle frame 20 is formed with a lamination layer by conventional transfer printing, rubbing, etc. process, which is not beneficial to the overall appearance of the electronic device 100.

Based on this, the embodiment of the present application adjusts the lamination structure and the manufacturing process of the appearance surface of the frame 22, so that the electronic device 100 can have a better appearance expressive force.

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 a cover 30 of the electronic device 100.

Bezel 22 is connected to display 10 and cover 30 of electronic device 100, respectively, and generally includes four sides connected end-to-end with a smooth transition between adjacent sides. Specifically, the bezel 22 generally includes a first edge 22a, a second edge 22b, a third edge 22c, and a fourth edge 22d that are connected end to end. Wherein the first side 22a is opposite to the third side 22c and is disposed substantially parallel thereto, and the second side 22b is opposite to the fourth side 22d and is disposed substantially parallel thereto. It can be appreciated 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 need to be formed on the four sides of the frame 22 respectively, and the appearance surfaces on the four sides can be smoothly spliced into a desired pattern by means of the corresponding positioning fixture, so that the influence of pattern dislocation or inclination and the like on the appearance expressive force is avoided.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating a stacked structure of a housing 40 in the embodiment of fig. 3, where the housing 40 may be a casing of the electronic device 100 such as the frame 22, the cover 30, etc.

The case 40 generally includes a substrate 41, a primer layer 42 provided on one side of the substrate 41, a color layer 43 provided on one side of the primer layer 42 facing away from the substrate 41, and an appearance layer 44 provided on one 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, where the first surface 411 may be a surface of the housing 40 facing away from the display 10 and exposed to the electronic device 100, and the second surface 412 may be a surface of the housing 40 adjacent to the display 10 and embedded in the electronic device 100. Wherein the primer layer 42 is disposed on the first surface 411 of the substrate 41. It should be noted that the terms "first," "second," and "second" in embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying any particular order of magnitude of the features being indicated. Thus, a feature defining "a first" or "a 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 (polymethyl methacrylate, PMMA), nylon (Nylon, PA), glass, metal, or other structural materials. One skilled in the art can select the base material 41 with different materials according to different requirements, so as to be suitable for the housing 40 with different application scenarios.

Preferably, when the substrate 41 is a plastic substrate, the housing 40 can be formed rapidly and efficiently by an injection molding process. When the base material 41 is a metal base material, the case 40 may be formed by a process such as machining. Of course, the housing 40 may be formed by other processes, which will not be described in detail.

In one embodiment, the substrate 41 may be made of two or more materials mixed together to enhance the structural performance of the substrate 41. Specifically, the base material 41 may be formed 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 better toughness and higher mechanical strength. For example, the substrate 41 may be molded using PC and GF particles, or the substrate 41 may be molded using PA and GF particles. It is understood that the larger the additive amount of the auxiliary material is, the poorer the toughness of the entire base material 41 is. 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.

In the case of using the main material as PC and the auxiliary material as GF, the substrate 41 formed by adding GF to PC has good toughness but relatively poor mechanical strength, and the mechanical strength of the substrate 41 can be enhanced by adding GF to PC. Wherein the weight ratio of GF to PC is approximately 10% -30%, for example, the weight of GF may be 10%, 15%, 20%, 25% or 30% of the weight of PC, etc.

In the case of the substrate 41 formed by adding GF to PA as the main material and GF as the auxiliary material, the toughness of PA is good, but the mechanical strength is relatively poor, and the mechanical strength of the substrate 41 can be enhanced by adding GF to PA. Wherein the GF is present in an amount of about 10% -30% by weight relative to the PA, for example, the GF may be present in an amount of about 10%, 15%, 20%, 25%, 30% by weight, etc., relative to the PA.

It should be understood that the above embodiments are only illustrative of the mixing and proportioning scheme of the main material and the auxiliary material in the substrate 41, but are not limited thereto, and the present application is not limited thereto. The outline of the base material 41, that is, the outline of the case 40 is formed by the above-mentioned materials and processes.

The under color layer 42 may be formed on the first surface 411 of the substrate 41 by a spraying process, and may serve as a shielding layer to shield the internal devices of the electronic apparatus 100, and thus the color of the under color layer 42 may be developed outside the electronic apparatus 100. Of course, the base color layer 42 and the color layer 43 can also be mutually set off so that the overall appearance is richer and full in color. In addition, the primer layer 42 may also function to provide a top-down bond to make the laminate bond on the substrate 41 more intimate. The thickness of the primer layer 42 is generally 5-15 microns, such as 7 microns, 10 microns, 14 microns, etc.

Of course, in other embodiments, the primer layer 42 may be formed on the first surface 411 of the substrate 41 by dip dyeing, silk screen printing or 3D printing, which will not be described herein.

The materials of the primer layer 42 generally include: 50-70 parts by weight of 2-3 functional polyurethane acrylate, 5-15 parts by weight of 2-3 functional reactive monomer, 0.5-1.5 parts by weight of photoinitiator, 0.5-3 parts by weight of auxiliary agent and 20-40 parts by weight of solvent.

Wherein, the photoinitiator generates active free radical or cation after absorbing ultraviolet light or visible light energy to initiate the double bond in the prepolymer or active monomer to polymerize. The photoinitiator may be one or more of 2,4, 6-trimethylbenzoyl diphenylphosphine oxide, 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, diphenyl- (2, 4, 6-trimethylbenzoyl) phosphine oxide, 2-methyl-1- [4- (methylthio) phenyl ] -2- (4-morpholinyl) -1-propanone, ai Jiake:907, 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-propanone, 2-methyl-1- (4-methylthiophenyl) -2-morpholin-1-propanone, IHT-PI907, 2-methyl-2- (4-morpholinyl) -1- [4- (methylthio) phenyl ] -1-propanone, 2-methyl-4-methylthio-2-morpholinophenone or 2-methyl-1- [ 4-methylthiophenyl ] -2-morpholinopropan-2-one.

Preferably, the photoinitiator may be one or more of the photoinitiators TPO (2, 4, 6-trimethylbenzoyl-diphenyl phosphine oxide), ITX (2 isopropylthioxanthone (2, 4 isomer mixture)), 819 (phenylbis (2, 4, 6-trimethylbenzoyl) phosphine oxide), and reactive amines.

The auxiliary agent can be one or more of an antifoaming agent, a leveling agent, a polymerization inhibitor 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 polyurethane is prepared by reacting a 2-3 functional polyurethane with a polyurethaneThe olefine acid ester, the 2-3 functional active monomer, the photoinitiator, the auxiliary agent and the solvent are uniformly mixed according to the weight part ratio, and then sprayed on the surface of the substrate 41 to form the ground color layer 42. Wherein the thickness of the spray coating is about 5-10 micrometers, the spray coating needs to be baked for 5-15 minutes at 55-65 ℃, the baking is performed by a mercury lamp, and the curing energy of the mercury lamp is about 300-700mj/cm ² 。

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. Wherein the color layer 43 may be a light-transmitting or semi-transmitting colored ink layer. For example, the ink may be blended into the ink body to mix well and then sprayed evenly onto the base color layer 42 to enable the color layer 43 to coordinate with the base color layer 42 to create a rich and full appearance color effect.

Of course, in other embodiments, the color layer 43 may be formed on the surface of the base color layer 42 facing away from the substrate 41 by dip dyeing, silk screen printing or 3D printing, which will not be 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 the expected requirement, thereby enriching the appearance color pattern of the housing 40 and improving the overall appearance expressive force of the electronic device. Wherein the color layer 43 may employ colored ink to form a color pattern or an gradual color change pattern, or the color layer 43 may be formed by adding a corresponding colored oil to colorless ink. For example, when a gold color oil is desired, yellow toner, red toner, blue toner may be mixed with a solvent to produce a gold color oil. When a rose gold colored oil is desired, the yellow toner, the purple toner may be mixed with a solvent to produce a rose gold colored oil. Of course, for other color oils, it is possible to formulate the corresponding color toner as desired.

The materials of the color layer 43 generally include: 60-80 parts by weight of resin mixture, 1-5 parts by weight of color paste, 0.5-1.5 parts by weight of auxiliary agent and 30-50 parts by weight of solvent.

The resin mixture can be formed by mixing a hydroxyl acrylic resin and a 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 an antifoaming agent, a leveling agent, a polymerization inhibitor and the like. The solvent can be one or more of ethyl acetate, propylene glycol methyl ether acetate, cyclohexanone, ethylene glycol monobutyl ether, etc.

In an embodiment, the color layer 43 may be formed by uniformly mixing the resin mixture, the color paste, the auxiliary agent and the solvent according to the above weight ratio and spraying the mixture onto the surface of the base color layer 42. Wherein the color layer 43 has a thickness of 5-15 μm, and is baked at 50-70deg.C for 3-8min, and cured by mercury lamp with a curing energy of 100-300mj/cm ² 。

The appearance layer 44 may be formed on the surface of the color layer 43 facing away from the base 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 a relief form, so that the granule touch and granule sparkling appearance effects of the housing 40 may be achieved. In addition, the appearance layer 44 can also be used as a protection layer to protect the color layer 43 so as to avoid the damage of the color layer 43 by external factors.

Wherein, the materials of the appearance layer 44 generally include: 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 with reference to the above weight ratios, and printing on the surface of the color layer 43 using an inkjet printer to form the exterior layer 44. Preferably, the printing ink typically has a viscosity of 7-30mps.

It will be appreciated that the resin is the most important factor affecting the surface hardness and abrasion resistance of the appearance layer 44, and that 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 becomes poor. In one embodiment, the resin may be a 3-9 functional urethane acrylate, epoxy acrylate, or other resin.

The monomer mainly plays a role in dilution, so that a printing nozzle of the ink-jet printer can smoothly jet printing ink, and meanwhile, the ink-jet printer has stronger corrosiveness, so that the adhesive force of the printing ink is improved. In addition, the high functional monomer may also improve 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), tetrahydrofuranacrylate (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 to initiate double bonds in the prepolymer or the active monomer to polymerize. In one embodiment, the photoinitiator is one or more of TPO, ITX, 819, reactive amines.

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

Further, in order to avoid the phenomenon that the edge and the ridge line are not clear on the appearance surface of the case 40, that is, the appearance layer 44, the printing ink ejected on the color layer 43 is formed in a dry-by-print manner. 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 may be a UV curing lamp, and the UV curing lamp may reciprocate synchronously with the nozzle of the inkjet printer to cure the printing ink sprayed on the color layer 43 by the nozzle synchronously, so as to avoid the adverse phenomena of fat edges, unclear edges and the like of the appearance layer 44. This is because, in the print ink-in-print-and-dry method, the horizontal flow range of the print ink on the color layer is limited, and thus, local ink accumulation or edge ink accumulation can be avoided, and further, the appearance layer 44 can be prevented from suffering from defects such as uneven edges and ridges.

Referring to fig. 5 and 6, fig. 5 is a schematic structural diagram illustrating a forming process of the appearance layer 44 according to some embodiments of the present application, and fig. 6 is a schematic structural diagram illustrating a forming process of the appearance layer 44 according to some embodiments of the present application. 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. Wherein the ink particles 51 have an arcuate surface such that the surface of the appearance layer 44 facing away from the color layer 43 may be in a wavy undulating state.

Specifically, the inkjet printer ejects printing ink onto the color layer 43 in the form of droplets 52, and the droplets 52 drop onto the color layer 43 to spread out to form ink particles 51, and the ink particles 51 may have a shape similar to an island-like convex structure or a flat-like convex structure, i.e., the ink housing 51 may have a substantially arc-shaped surface. The ink jet printer reciprocally ejects 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 may be uniformly stacked on the color layer 43 to form the appearance layer 44.

Wherein during formation of the appearance layer 44, the ink jet printer reciprocates to spray droplets 52 onto the color layer 43 and form ink particles 51, and the curing device can be moved in synchronization with the spraying device (e.g., a nozzle) of the ink jet printer to perform simultaneous pre-curing of the ink particles 51 on the color layer 43. In other words, the ink particles 51 are formed by ejecting the droplets 52 onto the color layer 43 by the ejecting means, and the ink particles 51 are cured by the curing means, wherein the curing means is reciprocally moved in synchronization with the ejecting means so that the ink particles are uniformly stacked and cured in synchronization during the stacking. After printing is completed, a color layer 43 is formed on the substrateThe pre-cured appearance layer 44 is then fully cured by subjecting the pre-cured appearance layer 44. For example, the appearance layer 44 may be sufficiently cured by a mercury lamp having a curing energy of approximately 600-1500mj/cm ² 。

The ink particles 51 formed by jetting the liquid droplets 52 onto the color layer 43 are hardly visible on the finally formed appearance layer 44, i.e., 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 together, thereby visually exhibiting the integration.

Preferably, the ink particles 51 may be transparent particles, so that the appearance layer 44 may achieve a particle sparkling effect under irradiation of light. Of course, in other embodiments, color paste may be added to the material of the appearance layer 44, that is, the ink particles 51 are colored particles, so that the effect of shining colored particles can be achieved. In some embodiments, the colored appearance layer 44 may cooperate with the color layer 43 to achieve any gradual change in multiple colors, customization of patterns, and the like.

Further, during ink printing, the size of the droplets 52 may be controlled by adjusting the amount of spray applied. It will be appreciated that when the drop 52 is too small, the appearance of the appearance layer 44 is too fine and the granule feel is not apparent; when the droplets 52 are too large, the appearance surface of the appearance layer 44 is too rough, affecting the appearance touch. Based on this, in some embodiments, the droplet 52 particle size is typically controlled to be around 10-80 μm, and during the ink printing process, the droplet 52 spreads out to form ink particles 51 when landing on the color layer 43, i.e., similar to the spreading effect of a droplet landing on a plane. At this time, the thickness of the ink particles 51 corresponding to the projections of the color layer 43 is extremely small and generally not more than 5 μm, so that the appearance surface of the appearance layer 44 can exhibit a smooth frosted feel. The thickness of the exterior layer 44 is generally 5 to 25. Mu.m, for example, 10. Mu.m, 15. Mu.m, 20. Mu.m, etc.

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 exterior layer 44 is approximately 15 μm.

The casing and the electronic equipment that provide in this application embodiment mutually support in order to form abundant full outward appearance color effect through colour layer and ground tint layer, and the colour layer can be through colored printing ink in order to form colour pattern, gradient colour pattern or custom pattern etc.. The shell can realize the flashing effect of particles and smooth frosted feeling on visual appearance by arranging the appearance layer. In addition, the appearance layer with an integrated structure is formed by a plurality of ink particles stacked on the color layer, so that adverse phenomena such as fat edges, unclear edge lines and the like can be avoided; the color layer and the appearance layer are matched with each other to realize the effects of random gradual change of various colors, customizable patterns and the like. Further, when the appearance of the shell needs to show a matte effect, a part of non-printing area can be arranged on the color layer, namely, ink particles are stacked in the part of the area of the color layer, namely, the printing area, so that the non-printing area can show a smooth surface effect, the printing area can show a matte effect, and the appearance expressive force of the shell is further enriched.

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

Specifically, the case 40 generally includes a substrate 41, a primer layer 42 provided on one side of the substrate 41, a plating layer 45 provided on one side of the primer layer 42 facing away from the substrate 41, a color layer 43 provided on one side of the plating layer 45 facing away from the substrate 41, and an appearance layer 44 provided on one side of the color layer 43 facing away from the substrate 41.

The coating layer 45 may be an optical coating formed on the surface of the primer 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, etc., 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 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 coating layer 45 is generally greater than 1000mΩ.

The color layer 43 is formed on the surface of the coating layer 45 facing away from the under color layer 42. The appearance layer 44 is formed on a side of the color layer 43 facing away from the coating layer 45, and a surface of the appearance layer 44 facing away from the color layer 43 is substantially in a relief shape. It will be appreciated that technical features of the housing 40 in this embodiment that are not described in detail may refer to the specific description of the housing 40 in the foregoing embodiment, so that the description thereof will not be repeated. According to the shell, the metal-imitating appearance effect of the outer surface of the shell can be further achieved through the coating layer between the base color layer and the color layer.

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

The manufacturing method generally comprises the following steps:

s801, providing a substrate, wherein the substrate can be a plastic substrate, and the appearance of the substrate can be manufactured through an injection molding process. The specific technical features of the substrate may refer to the specific descriptions in the foregoing embodiments, so that the description is omitted.

S802, forming a ground color layer on the surface of the base material. Wherein, the base color layer can be formed on the surface of the substrate through coating, printing or spraying and other processes. Reference may be made to the specific description in the foregoing embodiments for specific technical features of the primer layer, so that the description is omitted.

S803, forming a color layer on the surface of the ground color layer, which faces away from the substrate. Wherein, the color layer can be formed on the surface of the base color layer facing away from the substrate through coating, printing or spraying and other processes. For specific technical features of the color layer, reference may be made to the specific description in the foregoing embodiments, so that the description is omitted.

S804, forming an appearance layer on the surface of the color layer facing away from the substrate. Wherein the appearance layer can be formed on the surface of the color layer facing away from the substrate through an inkjet printing process. For specific technical features of the appearance layer, reference may be made to the specific description in the foregoing embodiments, so that the description is omitted.

It should be noted that, technical features that are not described in detail in this embodiment may refer to the specific description in the foregoing embodiment, so that repeated description is not repeated in this embodiment.

Referring to fig. 9, fig. 9 is a flow chart of a method for manufacturing a housing according to another embodiment of the present application, which may be used to manufacture the housing 40 according to the foregoing embodiment.

The manufacturing method generally comprises the following steps:

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

S902, forming a primer layer on the surface of the substrate, wherein the step can refer to step S802.

S903, forming a coating layer on the surface of the ground color layer, which is away from the substrate. Wherein, the optical coating film can be formed on the surface of the base color layer, which is away from the base material, through electroplating process or sputtering process. The specific technical features of the coating layer may refer to the specific descriptions in the foregoing embodiments, so that the descriptions are omitted.

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

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

According to the shell, the manufacturing method thereof and the electronic equipment, the color layer and the ground color layer are matched with each other to form rich and full appearance color effects, and the color layer can form color patterns, gradient color patterns or custom patterns through colored ink. The particle flashing effect on the visual appearance of the shell, the smooth particle texture and the frosted feeling can be realized by arranging the appearance layer. In addition, by printing the appearance layer on the color layer, the adverse phenomena of fat edges, unclear edge lines and the like can be avoided; the color layer and the appearance layer are matched with each other to realize the effects of random gradual change of various colors, customizable patterns and the like. The metal texture-imitating appearance effect of the outer surface of the shell can be further realized through the coating layer between the base color layer and the color layer.

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

The electronic device may be, for example, a mobile electronic device, which may include: a memory 901, a processor (Central Processing Unit, CPU) 902, a circuit board (not shown), a power supply circuit, and a microphone 913. The circuit board is arranged in the space surrounded 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 various circuits or devices of the electronic equipment; the memory 901 is 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 realize the unlock and wake-up functions.

The electronic device may further include: peripheral interfaces 903, RF (Radio Frequency) circuitry 905, audio circuitry 906, speakers 911, a power management chip 908, other input/output (I/O) subsystem input/control devices, a touch screen 912, other input/control devices 910, and external ports 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 embodiment.

The memory 901 may be accessed by the CPU902, the peripheral interface 903, etc., 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 peripheral interface 903 may connect the input and output peripherals of the device to the CPU902 and memory 901.

The I/O subsystem 909 may connect input and output peripherals on the device, such as 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. Wherein one or more input controllers 9092 receive electrical signals from other input/control devices 910 or send electrical signals to other input/control devices 910, other input/control devices 910 may include physical buttons (push buttons, rocker buttons, etc.), dials, slider switches, joysticks, click wheels. It should be noted that the input controller 9092 may be connected to any 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 interface and output interface between the consumer 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, i.e., to implement a man-machine interaction, the user interface object displayed on the touch screen 912 may be an icon running a game, an icon networked to a corresponding network, or the like.

The RF circuit 905 is mainly used for establishing communication between a mobile phone and a wireless network (i.e. a network side), so as to realize data receiving and sending between the mobile phone and the wireless network. Such as sending and receiving short messages, emails, etc. Specifically, the RF circuit 905 receives and transmits an RF signal, which is also referred to as an electromagnetic signal, and the RF circuit 905 converts an electric signal into an electromagnetic signal or converts an electromagnetic signal into an electric signal and communicates with a communication network and other devices through the electromagnetic signal. 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 (COder-DECoder) chipset, a subscriber identity module (Subscriber Identity Module, SIM), and so forth.

Audio circuitry 906 is operative to receive audio data from the peripheral interface 903, convert the audio data into electrical signals, and transmit the electrical signals to the speaker 911. A speaker 911 for reproducing a voice signal received from the wireless network through the RF circuit 905 by the mobile phone into sound and playing the sound to the user. The power management chip 908 is used for supplying power and managing power for the hardware connected with the CPU902, the I/O subsystem and the peripheral interfaces.

It will be appreciated that technical features of the electronic device 900 that are not described in detail may refer to the electronic device 100 in the foregoing embodiment, and thus will not be described in detail.

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

The foregoing description is only a partial embodiment of the present application, and is not intended to limit the scope of the present application, and all equivalent devices or equivalent process transformations made by using the descriptions and the drawings of the present application, or direct or indirect application to other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A housing for an electronic device, the housing comprising:

a substrate;

the base color layer is arranged on one side of the base material and is used as a shielding layer for shielding the internal devices of the electronic equipment so as to display the color of the base color layer outside the electronic equipment;

the color layer is arranged on one side, away from the base material, of the base color layer, and is a light-transmitting or semi-transmitting colored ink layer, so that the color layer and the base color layer are mutually set off; and

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

the surface of the appearance layer, which is away from the color layer, is in a wavy undulating form; the raised thickness of the ink particles relative to the color layer is no more than 5 microns.

2. The housing of claim 1, wherein the material of the ink particles comprises: 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 particles further comprise color paste.

4. The housing of claim 1, wherein the appearance layer has a surface roughness of 8-20 μm away from the color layer.

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

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

7. The housing of any one of claims 1-6, further comprising a coating layer 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 for manufacturing a housing, the housing being applied to an electronic device, the method comprising:

providing a substrate;

forming a ground color layer on the surface of the base material, wherein the ground color layer serves as a shielding layer for shielding the internal devices of the electronic equipment so as to display the color of the ground color layer outside the electronic equipment;

forming a color layer on the surface of the ground color layer, which is away from the base material, wherein the color layer is a light-transmitting or semi-transmitting colored ink layer, so that the color layer and the ground color layer are mutually supported;

forming an appearance layer on a surface of the color layer facing away from the substrate;

the surface of the appearance layer facing away from the color layer is in a wavy undulating form; the raised thickness of the ink particles relative to the color layer is no more than 5 microns.

10. The method of claim 9, wherein ink particles are formed by ejecting droplets onto the color layer by an ejecting apparatus, and the ink particles are cured by a curing apparatus, wherein the curing apparatus reciprocates in synchronization with the ejecting apparatus.

11. An electronic device, the electronic device comprising: a display screen and a housing as claimed in any one of claims 1 to 8; the display screen is connected with one side of the shell.