WO2020073251A1

WO2020073251A1 - Housing structure and manufacturing method therefor, and mobile terminal

Info

Publication number: WO2020073251A1
Application number: PCT/CN2018/109710
Authority: WO
Inventors: 刘鹏; 钟贵冰; 杨涛; 张鹏; 朱毅; 杨迎喜
Original assignee: 华为技术有限公司
Priority date: 2018-10-10
Filing date: 2018-10-10
Publication date: 2020-04-16

Abstract

The present application provides a housing structure and a manufacturing method therefor, and a mobile terminal. The housing structure provided by the present application comprises a first housing body, the first housing body comprises an ink layer and at least one light-transmitting substrate layer, and the substrate layer is located on the outer surface side of the ink layer and provided with a laser engraved pattern. By laser engraving the substrate layer instead of the ink layer, the thickness of the ink layer can be reduced, the consistency requirement for the material of the substrate layer can be reduced, and thus, the material costs of the housing can be reduced.

Description

Shell structure and manufacturing method thereof, and mobile terminal

Technical field

The present application relates to the field of electronic equipment, and in particular to a case structure, a manufacturing method thereof, and a mobile terminal.

Background technique

With the popularization of electronic products, consumers have higher and higher requirements for the certification of electronic products, and it is necessary to mark clearly visible character information on the surface of the product, including model, manufacturer, and access information.

At present, there are two main ways of marking characters on the shell of electronic products in the industry, which are screen printing characters and laser engraving. Among them, the laser engraving method needs to make the laser directly penetrate the composite plate of the shell after the molding or assembly of the shell plate is completed, and act on the ink layer provided on the inner surface of the composite plate. Physical changes, thus showing the desired etched graphics or text.

However, in the current laser engraving method, in order to ensure a good engraving effect when the ink layer is engraved, the ink layer needs to have a thicker thickness and a laser pass rate with better consistency, resulting in a higher material cost for the electronic product casing.

Summary of the invention

The present application provides a casing structure, a manufacturing method thereof, and a mobile terminal, and the manufacturing cost of the casing structure is low.

In a first aspect, the present application provides a housing structure including a first housing body, the first housing body includes an ink layer and at least one light-transmissive substrate layer, the substrate layer is located on the outer surface of the ink layer On the side, the substrate layer has a laser engraved pattern. Using a laser engraving pattern on the substrate layer instead of the traditional laser engraving pattern on the ink layer, firstly, the thickness of the ink layer can be reduced and the material cost of the housing can be reduced; secondly, the laser directly acts on the substrate layer, and There is no need for laser to penetrate the substrate layer to act on the ink layer, which reduces the consistency requirement of the laser pass rate of the shell to the substrate layer material; finally, the laser engraving parameters are independent of the appearance color of the shell, and do not need to use different laser engraving The parameters match different appearance colors, which can realize laser engraving of all colors of the shell.

In a possible implementation manner of the first aspect, the base material layer includes a light-transmissible base material and a plurality of laser absorbing particles dispersed inside the base material, and the laser absorbing particles are used to absorb laser energy during laser engraving. The laser absorbing particles can absorb the energy of the laser, and disperse the laser absorbing particles in the base material of the substrate layer. When laser engraving, the laser energy is absorbed by the substrate layer, so as to realize the placement of the laser engraving pattern on the substrate layer .

In a possible implementation manner of the first aspect, the laser absorbing particles are used to absorb laser light with a wavelength of 240 nm-360 nm. Laser engraving uses 240nm-360nm ultraviolet light, and the laser absorbing particles can absorb 240nm-360nm ultraviolet light, so that the energy of the laser engraving ultraviolet light is focused on the substrate layer to achieve the purpose of laser engraving on the substrate layer.

In a possible implementation manner of the first aspect, the material of the laser-absorbing particles is 2-hydroxy-4-n-octyloxybenzophenone. 2-Hydroxy-4-n-octyloxybenzophenone is an ultraviolet absorber, which can absorb ultraviolet light of 240nm-360nm. As a laser absorbing particle, it can effectively absorb the energy of ultraviolet light for laser engraving.

In a possible implementation manner of the first aspect, the base material is an organic material. The organic material as the base material is generally plastic, and has good mechanical properties, good light transmission properties, and good stability.

In a possible implementation manner of the first aspect, the matrix material is polymethyl methacrylate PMMA, polycarbonate PC or polyethylene terephthalate PET. PMMA, PC and PET have high mechanical strength, good aging resistance, high transparency, and good light transmission properties, and are very suitable as the base material of the substrate layer of the present application.

In a possible implementation manner of the first aspect, the base material is an inorganic material. The inorganic material used as the matrix material should have good mechanical strength, good temperature stability, good see-through and light transmission properties.

In a possible implementation manner of the first aspect, the base material is glass. Glass is a silicate inorganic non-metallic material, which has good see-through and light-transmitting properties, high compressive strength, and high chemical stability, and is very suitable as a base material for the substrate layer of the present application.

In a possible embodiment of the first aspect, the substrate layer is entirely composed of a material that can absorb laser energy. The material that can absorb laser energy can focus the laser energy on the substrate layer, so that the laser engraving pattern is located on the substrate layer, and at the same time, the material that can absorb laser energy has good light transmission performance to meet the needs of the light transmissive substrate layer.

In a possible implementation manner of the first aspect, the base material layer is at least two layers, and the at least two base material layers include a stacked first base material layer and a second base material layer, the The base material and the base material of the second base material layer are different. As the main structure of the shell, the base material layer is provided with at least two base material layers of different materials. The thickness of the two base material layers and the reasonable arrangement of the different base material layers can satisfy the structural strength of the shell to the base material layer Requirements, and different substrate layers cooperate with each other can make the substrate layer have different performance characteristics.

In a possible implementation manner of the first aspect, the outer surface of the first housing body is further provided with a reinforcement layer. The reinforcing layer provided on the outer surface of the base material layer can further increase the structural strength of the base material layer and ensure that the shell has sufficient mechanical strength, and the reinforcing layer can also protect the base material layer and the ink layer inside from being damaged.

In a possible implementation manner of the first aspect, at least one decorative layer is further provided between the ink layer and the substrate layer, and the decorative layer includes at least one of an electroplating layer, a texture layer, and a silk screen layer. A decorative layer is provided between the ink layer and the substrate layer to make the appearance of the shell more beautiful and dazzling. Among them, the electroplating layer can protect the ink layer and improve the appearance of the shell. The texture layer can make the appearance of the shell have a texture effect, silk screen The layer can give the shell a beautiful pattern.

In a possible implementation manner of the first aspect, the decorative layer includes a silk screen layer, a texture layer, and an electroplating layer that are sequentially stacked from the base material layer to the ink layer. An electroplating layer, a texture layer and a silk screen layer are sequentially arranged between the ink layer and the base material layer, so that the casing can have glare lines and pattern effects.

In a possible implementation manner of the first aspect, the first housing body forms a housing of the mobile terminal. The first casing body may include a back cover, a side frame of the mobile terminal, and a non-display panel area of the front casing. The first casing body may be integrally injection molded to improve the mechanical strength and integrity of the casing of the mobile terminal.

In a possible implementation manner of the first aspect, it further includes at least one second casing body, and the first casing body and the second casing body together constitute a casing of the mobile terminal. The first casing of the present application may be only a part of the casing of the mobile terminal, and together with the second casing body constitute the whole casing of the mobile terminal, so that the casing of the mobile terminal has different performances and appearances.

In a second aspect, the present application provides a method for manufacturing a shell structure, including:

An ink layer is provided on the inner surface of the base material layer to form a housing, wherein the base material layer can absorb the energy during laser irradiation;

Laser engraving is performed on the casing to form a laser engraving pattern, and the laser engraving pattern is located on the substrate layer.

The ink layer is provided on the inner surface of the substrate layer. The substrate layer can absorb the energy of laser irradiation. In this way, during laser engraving, the laser does not penetrate the substrate layer and enter the ink layer, but is directly absorbed by the substrate layer. The laser engraving is formed in the base material layer to form a laser engraving pattern. In this way, the laser engraving pattern is not provided in the ink layer, which can reduce the thickness of the ink layer, thereby reducing the material cost of the housing; and, the laser does not have to penetrate the substrate layer to reach the ink layer, which can reduce the laser pass rate of the substrate layer material Consistency requirements.

In a possible implementation manner of the second aspect, before the ink layer is provided on the inner surface of the base material layer to form the housing, the method further includes:

Add laser-absorbing particles that can absorb laser energy to the matrix material in the hot-melt state;

The base material and the laser-absorbing particles are fused to form a substrate layer.

In this way, the substrate layer contains laser absorbing particles. During laser engraving, the energy of the laser light will be absorbed by the substrate layer to achieve the purpose of laser engraving on the substrate layer.

In a possible implementation manner of the second aspect, the base material is a light-transmissive material. The light-transmissive material can transmit visible light, so that the color and other effects of the shell can be shown through the base material layer where the base material is located, and the laser absorbing particles are distributed in the base material, so that the laser energy of the laser engraving is transferred by the base material The layer absorbs and cannot penetrate the substrate layer, which can achieve the purpose of laser engraving on the substrate layer.

In a third aspect, the present application provides a mobile terminal, including the housing structure as described above. The mobile terminal has a case structure as described above, which can reduce the thickness of the ink layer in the case of the mobile terminal and reduce the cost of materials; and can reduce the consistency requirement of the laser pass rate of the case of the mobile terminal on the material of the substrate layer.

In a possible implementation manner of the third aspect, the first housing body in the housing structure is a battery cover. The battery cover of the mobile terminal is the first casing body as described above, which can reduce the thickness of the ink layer of the battery cover and the material consistency requirement of the base material layer of the battery cover, so as to further reduce the production cost of the battery cover.

In the case structure and its manufacturing method, and mobile terminal of the present application, the mobile terminal includes a case structure, the case structure includes a first case body, and the first case body includes an ink layer and at least one light-permeable substrate The substrate layer is located on the outer surface side of the ink layer, and the substrate layer has a laser engraved pattern. By setting a laser engraving pattern on the substrate layer, the laser does not act on the ink layer to reduce the thickness of the ink layer, which in turn can reduce the material cost of the housing, without the need for the laser to penetrate the substrate layer to reach the ink layer, which can reduce the shell pair The material consistency requirements of the substrate layer, and laser engraving of all color shells can be realized on the transparent substrate layer. The manufacturing method of the shell structure includes: providing an ink layer on the inner surface of the base material layer to form a shell, wherein the base material layer can absorb energy during laser irradiation; performing laser engraving on the shell to form a laser engraving pattern. The laser engraving pattern is located on the substrate layer. By making the base material layer absorb energy during laser irradiation, and further applying laser engraving to the base material layer, a laser engraving pattern can be formed on the base material layer.

BRIEF DESCRIPTION

FIG. 1 is a schematic structural diagram of a housing structure provided in Example 1 of the present application;

2 is a schematic structural diagram of a substrate layer provided in Example 1 of the present application;

3 is a schematic structural diagram of yet another shell structure provided by Embodiment 1 of the present application;

4 is a schematic structural diagram of a third shell structure provided in Example 1 of the present application;

5 is a schematic structural diagram of a fourth shell structure provided in Example 1 of the present application;

6 is a schematic structural diagram of a fifth shell structure provided in Example 1 of the present application;

7 is a flowchart of steps in a method for manufacturing a shell structure according to Embodiment 2 of the present application;

8 is a flowchart of steps for manufacturing a substrate layer provided in Example 2 of the present application;

9 is a schematic diagram of an appearance of a shell structure of a mobile phone provided in Embodiment 3 of the present application;

10 is a block diagram of the internal structure of the mobile phone in FIG. 9.

Description of reference signs:

100—first shell body; 110—ink layer; 120—substrate layer; 121—matrix material; 122—laser absorbing particles; 123—first substrate layer; 124—second substrate layer; 130—reinforcement layer ; 140-decorative layer; 141-electroplated layer; 142-texture layer; 143-silk screen layer; 200-mobile terminal; 210-RF circuit; 220-memory; 230-other input devices; 240-display screen; 241-display panel 242—touch panel; 250—sensor; 260—audio circuit; 261—speaker; 270—I / O subsystem; 271—other input device controller; 272—sensor controller; 273—display controller; 280— Processor; 290-power supply.

detailed description

In the following, the concepts of laser engraving and the like in this application are first explained to facilitate understanding by those skilled in the art.

In order to visually display information such as the model, manufacturer, and access information of electronic products, such information can usually be marked on the casing of the electronic product. Specifically, the marking methods include screen printing, spraying, and laser engraving.

Among them, laser engraving is also called laser engraving or laser marking, which is a process of surface treatment using optical principles. The specific process of laser engraving is to use the high-intensity focused laser beam emitted by the laser to engrave the mark on the surface of the substance or inside the transparent substance. The laser beam can produce chemical and physical effects on the substance, and the deep substance is exposed through the evaporation of the surface substance, or The chemical and physical changes of the surface layer substances are engraved by light energy to make traces, or part of the substances are burned out by light energy, and the required etching patterns and characters are displayed. Laser engraving can easily "print" scanned objects, vectorized graphics, and patterns in various computer-aided design (CAD) files on objects.

When laser engraving the casing of some wearable devices such as mobile phones, tablets, laptops, watches, fitness bracelets, etc., the laser is usually irradiated on the casing after the substrate of the casing body is formed or assembled Through the energy of the laser, some substances in the casing undergo chemical or physical changes, thereby displaying the desired etched graphics or text.

In order to mark on the casing by means of laser engraving, embodiments of the present application provide a casing structure. FIG. 1 is a schematic structural diagram of a housing structure provided in Embodiment 1 of the present application. As shown in FIG. 1, the housing structure of the embodiment of the present application includes a first housing body 100. The first housing body 100 includes an ink layer 110 and at least one transparent substrate layer 120. The substrate layer 120 is located On the outer surface side of the ink layer 110, the substrate layer 120 has a laser engraved pattern.

The housing structure of the embodiment of the present application includes a first housing body 100, and the first housing body 100 may be all the housings except the display panel constituting the electronic product. For example, the first housing body 100 may include the back of the electronic product The frame parts of the board, the side frame and the panel other than the display panel, so that the first housing body 100 can be an integral injection-molded whole of the back plate, the side frame and the panel frame to improve the integrity and mechanical of the electronic product casing In addition, the first housing body 100 may also be assembled from various parts of the back plate, the side frame and the panel frame.

In a possible implementation manner, the first housing body 100 forms a housing of the mobile terminal. That is to say, the first housing body 100 constitutes the remaining housing part of the mobile terminal except the display panel, and the frame, side frame, and backplane including the panel are all composed of the first housing body 100. In this case, it is preferable The first housing body 100 is integrally formed, and the back plate and the side frame may be integrally formed, and then assembled with the panel frame. Of course, the three may be separately formed and then assembled. The first casing body 100 forms the entire casing of the mobile terminal, which can make the casing structure of the mobile terminal more concise, and the production process and assembly process of the casing materials are also faster and more efficient. Among them, the mobile terminal may be a mobile phone, a tablet computer, a notebook computer, a wearable electronic device, and the like.

Alternatively, the first housing body 100 may be only any one of the backplane, the side frame, or the panel frame, or a combination of any two, which is not limited in this embodiment of the present application. Optionally, the first housing body 100 includes at least the back plate of the electronic product, that is, the battery cover of the electronic product, and the corresponding information label can be marked on the battery cover at this time.

In another possible implementation manner, the casing structure further includes at least one second casing body, and the first casing body 100 and the second casing body together constitute a casing of the mobile terminal. The first case body 100 may be only the back plate of the mobile terminal, that is, the battery cover, and the second case body includes a side frame and a panel frame. Laser engraving is performed on the first case body 100 as the battery cover to form a movement Terminal identification information; the first casing body 100 may include a backplane and a side frame, the second casing body is a panel frame, or the first casing body 100 includes a backplane and a panel frame, and the second casing body is a side frame Or, for a special type of mobile terminal whose character marking information is located on the panel frame, the first casing body 100 may also be a panel frame, and the second casing body is a backplane and side frames, which are not specifically limited in the embodiments of the present application . The casing of the mobile terminal is composed of two casings: the first casing body 100 and the second casing body. Different parts of the casing have different performance and appearance effects, which can meet different demands.

The first casing body 100 of the present application includes an ink layer 110 and at least one light-transmissive substrate layer 120. In terms of the assembly of the first casing body 100 and the mobile terminal, the substrate layer 120 is located on the ink layer 110 The outer surface side, that is, the ink layer 110 is provided on the side of the base material layer 120 facing the inside of the mobile terminal.

At this time, the first housing body 100 is a multi-layer structure formed by overlapping a plurality of different layers, and the different layers can be used to perform different functions. For example, the base material layer 120 can be used as a main bearing and supporting structure, and the ink layer 110 can be used to play a decorative effect.

Specifically, the ink layer 110 may be formed after the ink is shaped and dried. The ink may include resins, pigments, fillers, additives and solvents. The ink has a certain fluidity. It is sprayed onto the inner surface of the substrate layer 120 to form a uniform thin layer. After drying, the ink layer 110 with a certain strength is formed. The ink layer 110 mainly has two functions. On the one hand, the ink layer 110 has a good shielding effect. Even if the base material layer 120 can transmit light, by providing the ink layer 110, the battery, circuit board, The antenna and other components are blocked and not exposed to avoid damage to the internal accessories of the mobile terminal caused by light; on the other hand, the main component pigments in the ink layer 110 can make the ink layer 110 have a corresponding color, and the pigment can be selected organic Pigments or inorganic pigments, organic pigments have bright colors, strong coloring power, short drying time, and are widely used in inks, such as azo and phthalocyanine pigments. As the ink layer of the mobile terminal case, an inorganic pigment may be preferable, and its light resistance, heat resistance, solvent resistance, and hiding power are good, such as titanium white, cadmium red, chrome green, ultramarine, etc. In short, the ink layer 110 is specified The pigments of the mobile terminal can provide the corresponding color of the mobile terminal housing, and enhance the aesthetics of the mobile terminal.

The base material layer 120 is the main structure of the first casing body 100, which has a certain structural thickness and has sufficient mechanical strength, and can ensure that the first casing body 100 is not damaged when the mobile terminal is subjected to a slight external force. Various components of the mobile terminal located inside the first housing body 100 are protected from damage and can operate normally. The base material layer 120 may be composed of an organic material or an inorganic material. The base material layer 120 made of different materials has different mechanical properties. The density and thickness of the base material layer 120 can be adjusted to make the base material layer 120 satisfy the first shell. The required mechanical properties of the body 100. In addition, the substrate layer 120 must be transparent, and the color of the ink layer 110 can be observed through the substrate layer 120, so as to achieve the purpose of displaying the appearance color of the first housing body 100. The base layer 120 may be transparent.

In order to display the marking information on the casing structure, the substrate layer 120 of the embodiment of the present application has a laser engraving pattern, and the laser engraving pattern may be text, characters, graphics, or other patterns that can be used to represent the marking information. At the same time, the laser engraving acts on the substrate layer 120, that is, the substrate layer 120 can absorb the energy of the laser and generate corresponding physical or chemical changes, thereby forming a corresponding pattern. Because the substrate layer 120 has a light-transmissive structure, the laser-engraved pattern can be seen by the outside through the substrate layer 120 and has a corresponding marking effect.

In this way, in the embodiment of the present application, the laser energy is absorbed by the substrate layer 120 during laser engraving, and the laser does not reach the ink layer 110, and in the prior art, the laser acts on the ink layer 110 and forms laser engraving on the ink layer 110 Compared with the pattern, it has at least the following advantages:

First, in the prior art, if laser engraving is performed on the ink layer 110, the ink layer 110 needs to have a certain thickness to ensure that the engraved pattern is clear and complete, and does not penetrate the ink layer 110 to cause partial areas. The ink layer 110 is missing, and the laser engraving pattern of the embodiment of the present application is located on the substrate layer 120. The ink layer 110 does not need to form a pattern under laser energy, so that the thickness of the ink layer 110 can be reduced, and only the first housing needs to be guaranteed The appearance color of the body 100 is sufficient. Therefore, the amount of ink required is reduced, and the material cost of the first housing body 100 can be reduced.

Second, the laser engraving in the prior art acts on the ink layer 110, which requires that the laser can penetrate the substrate layer 120 and be absorbed by the ink layer 110, which requires the material of the substrate layer 120 to have a high laser pass rate Consistency will undoubtedly increase the material cost of the substrate layer 120; and the laser engraving of the embodiment of the present application directly acts on the substrate layer 120 without the need for the laser to penetrate the substrate layer 120 into the ink layer 110, relatively speaking, this The requirement for the consistency of the laser pass rate of the materials of the base material layer 120 is low, which can reduce the material cost of the base material layer 120 and thus the material cost of the first housing body 100.

Third, the laser engraving pattern of the embodiment of the present application is located on the substrate layer 120, and the substrate layer 120 itself is in a light-transmissive state, so no matter what color the ink layer 110 located under the substrate layer 120 is, Affecting the laser engraving of the substrate layer 120 itself, it is sufficient to keep the same parameters (laser irradiation duration, laser energy size, etc.) during laser engraving, and the laser engraving efficiency is high.

In order to realize laser engraving on the base material layer 120, the base material layer 120 usually contains components capable of absorbing energy during laser irradiation, so that when the base material layer 120 is irradiated with laser light, the laser does not directly penetrate the base material layer 120, but It is absorbed by the components capable of absorbing laser light in the base material layer 120, and these components capable of absorbing laser energy can change accordingly after receiving the laser energy, thereby forming a laser engraving pattern. Specifically, the component capable of absorbing laser energy in the base material layer 120 may be a partial component or the entire component in the base material layer 120, and the component may be of many different types, which will be described in detail below.

2 is a schematic structural diagram of a substrate layer provided in Example 1 of the present application. As shown in FIG. 2, in a possible implementation manner, the base material layer 120 includes a light-transmissible base material 121 and a plurality of laser absorbing particles 122 dispersed inside the base material 121. The laser absorbing particles 122 are used for absorption. Laser energy during laser engraving.

At this time, the base layer 120 is composed of a base material 121 that can transmit light and laser-absorbing particles 122 distributed in the base material 121. Among them, the base material 121 is used to constitute the main supporting mechanism of the first housing body 100, so the base material 121 has a certain hardness and strength after being formed; in addition, the base material 121 can transmit light to show through the base material 121 The color of the ink layer 110.

The laser-absorbing particles 122 can absorb the laser energy during laser engraving. It is precisely because of the presence of the laser-absorbing particles 122 in the substrate layer 120 that the laser does not enter the ink layer 110 through the substrate layer 120, and almost all the laser light The energy is absorbed by the laser-absorbing particles 122 of the substrate layer 120 before the laser engraving acts on the substrate layer 120 to form a laser-engraved pattern thereon. The base material 121 may be a light-transmissive organic material or an inorganic material. In a state where the base material 121 is a fluid, the laser absorbing particles 122 are added to the base material 121 to mix the two uniformly. After the base material 121 is cured and formed Thus, the base material layer 120 on which the laser absorption particles 122 are distributed is formed.

In a possible embodiment, the base material 121 may be an organic material. There are many types of organic materials, such as plastics, fibers, rubber, paints, adhesives, etc. The organic material of the base material 121 of the embodiment of the present application can generally be plastic, and the plastic as the base material 121 should have good light transmission It has mechanical properties that meet the needs, good stability, and plastic wear resistance and light weight. As the main structure of the first housing body 100, when applied to the mobile terminal case, it can reduce the weight of the product and extend the product case The service life of the product can maintain the appearance of the product for a long time.

Further, in a possible embodiment, the base material 121 may be polymethyl methacrylate (PMMA), polycarbonate (PC), or polyethylene terephthalate (Polyethylene terephthalate). Glycol Terephthalate, PET). PMMA, PC, and PET are all plastics in organic materials. As the base material layer 120 formed by the base material 121, the mechanical properties are good and the light transmittance is good.

In another possible implementation manner, the base material 121 may be an inorganic material. Inorganic materials refer to materials made of inorganic substances alone or mixed with other substances, which can usually be made of silicate, aluminate, borate, phosphate, germanate and other raw materials and / or oxides, nitrides, carbonization Materials such as compounds, borides, sulfides, silicides, halides and other raw materials prepared by a certain process. The inorganic material as the base material 121 must have high mechanical strength, good dimensional stability, aging resistance and other mechanical properties, and the light transmittance should be good.

Further, in a possible embodiment, the base material 121 may be glass. Glass is a silicate inorganic non-metallic material, and its main components are silica and other oxides. Glass has good see-through and light-transmitting properties, and has a certain thermal insulation performance. The tensile strength is much smaller than the compressive strength. It is a typical brittle material with high chemical stability, but poor thermal stability. As the glass for the base material 121, tempered glass formed by deep processing of ordinary glass can be used. Compared with ordinary glass, tempered glass has higher strength, which can reach several times of ordinary glass, and tempered glass is not easily broken.

It should be noted that the above-mentioned base material 121 is for illustration only, and does not limit the type of the base material 121. In addition, the base material 121 may also be easily shaped by adding laser-absorbing particles as is well known to those skilled in the art. Light transmissive materials are not limited here. Regardless of which base material 121 is selected, it is required to have good mechanical properties and light transmittance to meet the needs of the bearing performance and appearance effect of the first housing body 100.

In another possible embodiment, the substrate layer 120 is entirely composed of a material that can absorb laser energy. The substrate layer 120 can be composed of a material capable of absorbing laser energy and a laser-absorbing particle 122 distributed in the matrix material 121, and can also be composed of a material capable of absorbing laser energy. Can form a light-transmissive sheet with good mechanical properties, that is, the material that can absorb laser energy as the base layer 120 can first form a sheet, and the formed sheet has a plastic or glass machine as described above The performance can meet the requirements of the substrate layer 120, and the formed thin plate must also have high light transmittance, which can display the color of the ink layer 110 through the thin plate; in addition, the formed thin plate can absorb laser energy, which can make the laser engraving function For this thin plate layer, a laser engraved pattern can be formed on this thin plate layer as the base material layer 120. As for the specific composition of this material that can absorb laser energy, the embodiments of the present application are not limited.

Further, the substrate layer 120 has the required mechanical properties and light transmittance. The embodiment of the present application does not limit the number of layers included in the substrate layer 120. The substrate layer 120 may be composed of two or more of the aforementioned three plastics of PMMA, PC, and PET, glass, and a material that can absorb laser energy.

FIG. 3 is a schematic structural diagram of yet another shell structure provided by Embodiment 1 of the present application. As shown in FIG. 3, in a possible implementation manner, the base material layer 120 is at least two layers, and the at least two base material layers 120 include a first base material layer 123 and a second base material layer 124 stacked, The base material of the first base material layer 123 and the base material of the second base material layer 124 are different.

As shown in FIG. 3, the first substrate layer 123 of the substrate layer 120 of the housing structure is a PMMA layer, and the second substrate layer 124 is a PC layer, wherein the PC layer as the second substrate layer 124 is located on the substrate On the inner side of the layer 120, the PMMA layer as the first substrate layer 123 is located on the outer side of the substrate layer 120. On the basis that the PC layer has sufficient mechanical properties and light transmittance, PMMA can make the substrate layer 120 have a glass appearance The effect makes the appearance of the first casing body 100 more observable. Adding the PMMA layer on the basis of the PC layer can also increase the wear resistance of the base material layer, thereby making the first housing body 100 more wear-resistant. Since the base material layer 120 includes two layers of a PC layer and a PMMA layer, the thickness of the PC layer and / or PMMA layer can be reduced compared to the base material layer 120 with only one layer, as long as the total thickness of the two layers meets the demand can. The connection method between the PC layer and the PMMA layer may be an adhesive method, or a connector may be used to connect the two, and other reasonable connection methods may also be used. The embodiments of the present application are not limited.

Of course, the position of the PC layer and the PMMA layer can also be changed so that the first substrate layer 123 is a PC layer and the second substrate layer 124 is a PMMA layer. Both of the mechanical properties and light transmittance meet the requirements. The exchange of the two positions does not affect the overall performance of the substrate layer 120. Similarly, the first substrate layer 123 and the second substrate layer 124 may also be composed of a PMMA layer and a PET layer, or a PC layer and a PET layer, or a third substrate layer may be provided, and the three substrate layers are respectively It is composed of a PMMA layer, a PC layer and a PET layer, and the embodiments of the present application are not limited.

Except that the first base layer 123, the second base layer 124, and the third base layer are all composed of the above three plastics, the first base layer 123, the second base layer 124, and the third base layer It may be composed of glass and at least one of the above three plastics. Preferably, the glass layer is located inside the substrate layer 120, and at least one of the PMMA layer, PC layer, and PET layer is located outside the substrate layer 120. Because the glass layer is relatively brittle, it is located on the inside, and is protected by the above-mentioned plastic layer provided on the outside, thereby increasing the impact resistance of the base material layer 120.

It should be noted that, in addition to the first base material layer 123 and the second base material layer 124, the base material layer 120 may further include a third base material layer, a fourth base material layer, etc., in which the laser-absorbing particles 122 are dispersed The base material layer is a base material layer in which a laser-engraved pattern exists. Taking the base material layer including the first base material layer 123 and the second base material layer 124 as an example, if the laser absorbing particles 122 are located on the first base material layer 123, the first base material layer 123 is a laser engraved pattern layer, if the laser absorbs If the particles 122 are located on the second substrate layer 124, the second substrate layer 124 is a laser engraved pattern layer. Among them, it is more special that if both the first substrate layer 123 and the second substrate layer 124 contain laser-absorbing particles 122 , According to the positional relationship between the first substrate layer 123 and the second substrate layer 124, as shown in FIG. 3, the case where the first substrate layer 123 is located outside the substrate layer 120 is an example, and the laser enters the substrate layer 120 At this time, the laser energy is first absorbed by the outer first base material layer 123. Therefore, the laser engraved pattern layer is the first base material layer 123.

There is also a special case in which any one of the substrate layers 120 is composed of the aforementioned material that can absorb the laser energy that satisfies the requirements of the substrate layer 120. Then, the other layers may not contain the laser-absorbing particles 122, and the laser energy is This layer absorbs, and the laser engraved pattern is located in this layer; if other layers contain laser-absorbing particles 122, and the substrate layer containing laser-absorbing particles 122 is outside the substrate layer composed of a material that can absorb laser energy, the laser energy Will be first absorbed by the substrate layer containing the laser-absorbing particles 122, the laser engraving pattern is located on the substrate layer containing the laser-absorbing particles 122 (if the substrate layer containing the laser-absorbing particles 122 is located on a material composed of a material that can absorb laser energy Inside the substrate layer, the laser energy is first absorbed by the substrate layer composed of a material that can absorb laser energy, and the laser engraving pattern is still located on the substrate layer composed of a material that can absorb laser energy). On the premise that the substrate layer composed of a material capable of absorbing laser energy satisfies the mechanical properties and thickness required for laser engraving, the laser absorbing particles 122 may not be provided in other substrate layers as much as possible to save the material cost of the substrate layer 120 .

The laser used for laser engraving is generally in the wavelength range of ultraviolet light. Correspondingly, in a possible embodiment, the laser absorption particles 122 are used to absorb laser light with a wavelength of 240 nm-360 nm. The laser light of 240 nm-360 nm is in the wavelength range of ultraviolet light, that is, the wavelength range of the laser light that the laser absorption particles 122 can absorb corresponds to the laser light for laser engraving. When the ultraviolet light for laser engraving is irradiated to the substrate layer 120, the laser-absorbing particles 122 in the substrate layer 120 can absorb almost all of the ultraviolet light, preventing the ultraviolet light from entering the ink layer 110 on the inside, so that the ultraviolet light acts on the substrate For the material layer 120, a laser engraving pattern is formed in the base material layer 120. At the same time, the laser-absorbing particles 122 do not affect the visible light entering the ink layer 110 through the base material layer 120, and the visible light enters the ink layer 110 to make the appearance color of the first housing body 100 appear.

Further, in a possible embodiment, the material of the laser absorption particles 122 is 2-hydroxy-4-n-octyloxybenzophenone. 2-Hydroxy-4-n-octyloxybenzophenone is a high-efficiency ultraviolet absorber, capable of absorbing 240nm-360nm ultraviolet light. It has the characteristics of light color, non-toxicity, good compatibility, low mobility, and easy processing. . It has the greatest protective effect on the polymer and helps reduce color, while delaying yellowing and retarding the loss of physical properties. It is widely used in Polyethylene (PE) PE, Polyvinyl Chloride (PVC), Polypropylene (PP), Polystyrene (Polystyrene, PS), Polycarbonate PC, Polymethacrylate Ester PMMA and other aspects, provide them with good light stabilization effect. It can be seen that the use of 2-hydroxy-4-n-octyloxybenzophenone as the laser-absorbing particles 122 can effectively absorb the above-mentioned ultraviolet light as a laser for laser engraving, which can absorb more than 99% of ultraviolet light and control the ultraviolet light. With a pass rate of less than 1%, laser engraving is applied to the substrate layer 120 where the laser-absorbing particles 122 are located, and a laser engraved pattern is formed on the substrate layer 120; meanwhile, its pass rate to visible light is more than 90%, that is, visible light The ink layer 110 may be entered therethrough to display the appearance color of the first housing body 100.

Of course, 2-hydroxy-4-n-octyloxybenzophenone is only used as an optional laser-absorbing particle 122 in the embodiments of the present application, and can also be used as other ultraviolet absorbers that can effectively absorb ultraviolet light for laser engraving The laser absorbing particles 122 of the embodiment of the present application; if the laser for laser engraving is located in other wavelength ranges, the laser absorbing particles 122 that can effectively block the corresponding laser can also be used. In this regard, the embodiments of the present application are not limited.

The substrate layer 120 is the main structure of the first housing body 100, and the laser absorption particles 122 are distributed in the substrate layer 120. In order to better protect the substrate layer 120, to prevent it from being worn or scratched, to ensure the basis The mechanical properties of the material layer 120 ensure that the laser-absorbing particles 122 in the base material layer 120 are not damaged, and ensure that the laser engraving completely acts on the base material layer 120. FIG. 4 is a schematic structural diagram of a third shell structure provided in Embodiment 1 of the present application. As shown in FIG. 4, as a possible implementation manner, the outer surface of the first housing body 100 is further provided with a reinforcement layer 130. The reinforcement layer 130 is located outside the substrate layer 120, which prevents the substrate layer 120 from being directly exposed to the outside world, but the reinforcement layer 130 directly contacts the outside world. As the reinforcement layer 130 that is directly exposed to the outside, in addition to having sufficient mechanical strength, it should have the characteristics of wear resistance and high hardness. When the outer surface of the first housing body 100 is in contact with other objects or is hit by a hard object At this time, the reinforcement layer 130 is used to ensure the structural integrity of the first housing body 100 so that the base material layer 120 and the ink layer 110 located on the inner side thereof are not damaged.

Since the reinforcement layer 130 is located on the outermost side of the first casing body 100, it should also have a high light transmittance, so that visible light passes through the reinforcement layer 130 and the substrate layer 120 into the ink layer 110, showing the Exterior color. On the basis of having the characteristics of high hardness, wear resistance, and high light transmittance, the reinforcement layer 130 can be selected from organic polymers of plastics or other materials that meet the requirements. The embodiments of the present application are not limited.

FIG. 5 is a schematic structural diagram of a fourth shell structure provided in Embodiment 1 of the present application. As shown in FIG. 5, in a possible implementation manner, at least one decorative layer 140 is further disposed between the ink layer 110 and the substrate layer 120, and the decorative layer 140 includes an electroplating layer 141, a texture layer 142, and a silk screen layer 143 At least one of them.

The plating layer 141 is a decorative plating layer, which not only has a good anti-rust ability, but also has a good decorative property. On the basis that the ink layer 110 provides the appearance color of the first housing body 100, the plating layer 141 can make the first The appearance of a shell body 100 is better. For example, electroplating black chrome and black nickel plating on the first shell body 100 can make the shell have a uniform black color. The outer layer of the copper-chromium plating layer is Bright blue with bright blue chromium, copper coating containing 25% -30% zinc is golden yellow, these are very decorative.

The texture layer 142 is a texture layer structure formed by laser, which may be a minute groove or a convex texture, so that the appearance of the first casing body 100 has a texture effect. In the embodiment of the present application, the texture layer 142 may adopt a UV transfer method to form a glare texture effect.

The screen printing layer 143 is a pattern layer, which can be used as a printing layer for logos, specific patterns, characters, etc. of the mobile terminal. The screen printing layer 143 is formed by screen printing, and the ink is passed through the screen of the graphic part by the pressing of the scraper during printing. The hole is transferred to the substrate, and the silk screen layer 143 has a good appearance effect.

Whether it is the plating layer 141, the texture layer 142 or the silk screen layer 143, as the decoration layer 140, the appearance of the first casing body 100 can be more beautiful and dazzling with different appearance effects, so that the first casing body as the mobile terminal casing 100 is more aesthetically pleasing while being practical. Therefore, when the decoration layer 140 is selected, only one layer of the electroplating layer 141, the texture layer 142, and the silk screen layer 143 may be provided, or two or three of them may be provided. The embodiment of the present application is not limited.

Specifically, the decorative layer 140 includes an electroplating layer 141 and a texture layer 142, which may be sequentially arranged as an ink layer 110, an electroplating layer 141, and a texture layer 142, or may be an ink layer 110, a texture layer 142 which are sequentially arranged, the difference is only in the ink Based on the color of the layer 110, whether to form a bright color before adding a glare texture effect, or to add a texture effect before forming a bright color, the final decorative effect can be the same.

The decorative layer 140 may also include an electroplating layer 141 and a silk screen layer 143. Similarly, the decorative layer 140 may be sequentially arranged as the ink layer 110, the electroplating layer 141, and the silk screen layer 143, or may be the ink layer 110, the silk screen layer 143, and the electroplating layer 141 arranged in sequence. To make the appearance of the first housing body 100 more beautiful.

The decoration layer 140 may further include a texture layer 142 and a silk screen layer 143, which may be sequentially arranged as an ink layer 110, a texture layer 142, and a silk screen layer 143, or may be sequentially arranged as an ink layer 110, a silk screen layer 143, and a texture layer 142, so that the first The final appearance of the casing body 100 has a glare texture effect and a pattern effect.

FIG. 6 is a schematic structural diagram of a fifth shell structure provided in Embodiment 1 of the present application. As shown in FIG. 6, in a possible implementation manner, the decorative layer 140 includes a silk screen layer 143, a texture layer 142, and an electroplating layer 141 that are sequentially stacked from the base material layer 120 to the ink layer 110. The decoration layer 140 may include an electroplating layer 141, a texture layer 142, and a screen printing layer 143, and the decoration layer 140 provided between the ink layer 110 and the base material layer 120 is sequentially stacked into an electroplating layer 141, a texture layer 142, and a screen printing layer 143. On the basis of the color provided by the ink layer 110, the electroplating layer 141 makes the color have a bright effect, and setting the texture layer 142 on the basis of the electroplating layer 141 will make the appearance color have a glare texture effect, and then add the silk screen layer 143, A pattern effect is formed, and the decoration layer 140 is provided in this way, so that the first housing body 100 can have a variety of different appearance effects, which improves the user experience.

Of course, the plating layer 141, the texture layer 142, and the silk screen layer 143 as the decoration layer 140 may also have other reasonable lamination methods, as long as the desired appearance effect of the first housing body 100 can be achieved, the embodiments of the present application are not specifically limited .

In this embodiment, the shell structure includes a first shell body. The first shell body includes an ink layer and at least one light-transmissive substrate layer. The substrate layer is located on the outer surface side of the ink layer. The substrate layer It has a laser engraving pattern. By setting a laser engraving pattern on the substrate layer, the laser engraving acts on the substrate layer instead of the ink layer, thereby reducing the thickness of the ink layer, reducing the material consistency requirements of the substrate layer, and saving the material of the shell The cost can realize a set of laser engraving parameters for laser engraving of all color shells to improve the efficiency of laser engraving.

7 is a flowchart of steps in a method for manufacturing a shell structure according to Embodiment 2 of the present application. As shown in FIG. 7, the method for manufacturing a shell structure provided in Embodiment 2 of the present application includes the following steps:

S101. An ink layer is provided on the inner surface of the base material layer to form a casing, wherein the base material layer can absorb energy during laser irradiation.

The ink layer may be provided on the inner surface of the base material layer by brushing, spraying, etc. The ink layer forms the casing after the inner surface of the base material layer is cured and molded. The ink layer has a corresponding color, the base material layer can transmit light, and visible light can penetrate the base material layer to enter the ink layer, so that the color of the shell can be revealed.

Normally, the laser light irradiated through the substrate layer enters the ink layer, and the laser energy is absorbed in the ink layer. In this embodiment, the energy during laser irradiation is absorbed by the substrate layer, that is to say, it does not penetrate the substrate layer and enter the ink layer during laser irradiation, but acts on the substrate layer. The layer is laser engraved.

S102. Carry out laser engraving on the casing to form a laser engraving pattern, and the laser engraving pattern is located on the substrate layer.

In this way, a laser engraved pattern can be formed on the casing structure to display patterns or characters for marking information or other purposes. Since the base material layer can transmit light, the laser engraved pattern can be intuitively seen by the outside world.

The energy at the time of laser irradiation is absorbed by the base material layer, enabling laser engraving on the base material layer. Naturally, the formed laser engraving pattern is located on the base material layer. The laser engraving pattern is located on the substrate layer instead of the ink layer. Without laser engraving on the ink layer, there is no need for the ink layer to have a corresponding thickness, which can reduce the thickness of the ink layer; moreover, the laser does not need to penetrate the substrate layer to enter the ink layer. This reduces the consistency requirement of the laser pass rate of the material of the substrate layer, which can reduce the material cost of the housing. In addition, instead of debugging and optimizing the laser engraving parameters according to the color of the ink layer, laser engraving on the light-transmissive substrate layer can realize laser engraving of all color shells with a set of laser engraving parameters, which can improve the laser Carving efficiency. The above are all described in detail in Embodiment 1 of the present application, and will not be repeated here.

FIG. 8 is a flowchart of steps for manufacturing a substrate layer provided in Example 2 of the present application. As shown in FIG. 8, in a possible implementation manner, before the ink layer is provided on the inner surface of the substrate layer to form the housing, the following steps are further included:

S201. Add laser-absorbing particles that can absorb laser energy to the matrix material in the hot-melt state.

In order to make the base material layer absorb the energy during laser irradiation and enable laser engraving to act on the base material layer, the base material layer of this embodiment is distributed with laser absorbing particles, and the laser absorbing particles can absorb laser energy. The base material layer is composed of a base material and laser absorbing particles distributed in the base material. The base material is the main structure of the base material layer. The laser absorbing particles are used to absorb laser energy, so that the laser engraving pattern is formed on the base material layer. Specifically, the base material can be melted by heating, and the laser absorbing particles can be added to the base material in the hot-melt state.

S202. Fusion of the base material and the laser-absorbing particles to form a substrate layer.

After the laser-absorbing particles are added to the matrix material in the hot-melt state, the laser-absorbing particles and the matrix material are mixed uniformly so that the laser-absorbing particles are evenly dispersed in the matrix material. After the base material is cured and formed, a substrate layer with laser-absorbing particles dispersed is formed.

Of course, the substrate layer may be composed only of a material that can absorb laser energy, as long as the material satisfies the required performance of the substrate layer; the substrate layer may also include a laminated first substrate layer and a second substrate layer Even more, when fusing the laser absorbing particles with the substrate layer, the laser absorbing particles can be selectively fused with one or more of the substrate layers according to the specific structure of the substrate layer. Of course, The laser energy will be absorbed by the outermost substrate layer containing laser absorbing particles. Therefore, in order to save the material cost of the substrate layer, the laser absorbing particles may be provided only on the required substrate layer. This has been described in detail in Embodiment 1 of the present application, and will not be repeated here.

It should be noted that when the substrate layer is a multilayer structure, the substrate layer that absorbs laser energy needs to have sufficient thickness after molding, and it should be avoided that the laser penetrates the substrate layer and enters the shell structure adjacent to its lower surface Layer, to avoid the formation of irregular and different laser engraving patterns, to ensure that the laser engraving patterns are clear and complete, and to ensure the integrity of the structure of each layer of the shell.

In a possible embodiment, the base material is a light-transmissive material. The base material is the main structure of the base material layer, and visible light needs to pass through the base material layer to enter the ink layer provided on the lower surface of the base material layer, so that the casing can display the color of the ink layer. Therefore, the base material should be a light-transmissive material, and the laser-absorbing particles can absorb the laser energy, block the laser light on the substrate layer, and allow laser engraving to act on the substrate layer. At the same time, it should allow visible light to pass through the substrate layer and enter the ink layer. To show the color of the ink layer.

In addition, the base material may be one or more of the polymethyl methacrylate PMMA, polycarbonate PC, polyethylene terephthalate PET and glass described in Example 1 of the present application, or may be Other materials that meet the requirements of the substrate layer. In addition to the base material layer and the ink layer, the outermost layer of the casing is also provided with a reinforcement layer, and there is also a decorative layer between the ink layer and the base material layer. These have been described in detail in Example 1 of the present application. No longer.

In this embodiment, the manufacturing method of the shell structure includes first providing an ink layer on the inner surface of the base material layer to form a shell, wherein the base material layer can absorb the energy during laser irradiation; and then performing laser engraving on the shell, A laser engraving pattern is formed, and the laser engraving pattern is located on the substrate layer. The substrate layer absorbs the energy during laser irradiation, and the laser engraving acts on the substrate layer, so that the laser engraving pattern is formed on the substrate layer, and the laser layer is not engraved in the ink layer to reduce the thickness of the ink layer and the substrate Consistent requirements for the laser pass rate of layer materials further reduce the material cost of the shell.

Embodiment 3 of the present application provides a mobile terminal. The mobile terminal provided in this embodiment includes the housing structure described in Embodiment 1 of the present application.

The mobile terminal 200 involved in the embodiments of the present application may include a mobile phone, a tablet computer, a personal digital assistant (Personal Digital Assistant (PDA), a sales terminal (Point of Sales, POS), an on-board computer, etc.

Taking the mobile terminal 200 as a mobile phone as an example, FIG. 9 is a schematic external view of a housing structure of a mobile phone provided in Embodiment 3 of the present application, and FIG. 10 is a block diagram of an internal part of the mobile phone in FIG. 9. As shown in FIGS. 9 to 10, the mobile terminal 200 includes a radio frequency (RF) circuit 210, a memory 220, other input devices 230, a display screen 240, a sensor 250, an audio circuit 260, an I / O subsystem 270, and processing The device 280, the power supply 290 and other components. In addition, the mobile terminal 200 further includes a case structure capable of bearing and protecting, so that the user can hold and protect some or all of the above components. Those skilled in the art can understand that the casing structure of the mobile phone shown in FIG. 9 does not constitute a limitation on the mobile phone, and may include a casing structure of a mobile phone with a shape and structure different from that shown.

The following describes each component of the mobile terminal 200 in detail with reference to FIG. 10:

The RF circuit 210 can be used to receive and send signals during receiving and sending information or during a call. In particular, the downlink information of the base station is received and processed by the processor 280; in addition, the uplink data designed to be sent to the base station. Generally, the RF circuit includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, and the like. In addition, the RF circuit 210 can also communicate with other devices via a wireless communication network. The wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile (GSM), General Packet Radio Service (GPRS), and Code Division Multiple Access (Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (Wideband Code Multiple Division Access, WCDMA), Long Term Evolution (LTE), E-mail, Short Message Service (SMS), etc.

The memory 220 may be used to store software programs and modules, and the processor 280 executes various functional applications and data processing of the mobile terminal 200 by running the software programs and modules stored in the memory 220. The memory 220 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, application programs required by at least one function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store Data created according to the use of the mobile terminal 200 (such as audio data, phone book, etc.), etc. In addition, the memory 220 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

Other input devices 230 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the mobile terminal 200. Specifically, other input devices 230 may include but are not limited to physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and light mice (light mice are touch sensitive that do not display visual output Surface, or an extension of a touch-sensitive surface formed by a touch screen, etc.). The other input device 230 is connected to the other input device controller 271 of the I / O subsystem 270, and performs signal interaction with the processor 280 under the control of the other device input controller 271.

The display screen 240 may be used to display information input by the user or information provided to the user and various menus of the mobile terminal 200, and may also accept user input. The specific display screen 240 may include a display panel 241 and a touch panel 242. The display panel 241 may be configured in the form of an LCD (Liquid Crystal), an OLED (Organic Light-Emitting Diode, organic light emitting diode), or the like. The touch panel 242, also known as a touch screen, touch sensitive screen, etc., can collect user contact or non-contact operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc. on the touch panel 242 Or operations near the touch panel 242 may also include somatosensory operations; the operations include single-point control operations, multi-point control operations and other operation types.), And drive the corresponding connection device according to a preset program. Optionally, the touch panel 242 may include a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation and posture, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device and converts it into a processor capable of The processed information is then sent to the processor 280, and can receive the command sent by the processor 280 and execute it. In addition, the touch panel 242 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves, or may be implemented in any technology developed in the future. Further, the touch panel 242 can cover the display panel 241, and the user can display on the display panel 241 according to the content displayed by the display panel 241 (the display content includes, but is not limited to, a soft keyboard, a virtual mouse, a virtual key, an icon, etc.) When an operation is performed on or near the touch panel 242, the touch panel 242 detects a touch operation on or near it, and transmits it to the processor 280 through the I / O subsystem 270 to determine the type of touch event to determine the user Input, and then the processor 280 provides corresponding visual output on the display panel 241 through the I / O subsystem 270 according to user input on the display panel according to the type of touch event. Although in FIG. 10, the touch panel 242 and the display panel 241 are implemented as two independent components to realize the input and input functions of the mobile terminal 200, in some embodiments, the touch panel 242 and the display panel 241 may be Integrate to realize the input and output functions of the mobile terminal 200.

The mobile terminal 200 may further include at least one sensor 250, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 241 according to the brightness of the ambient light, and the proximity sensor may close the display panel 241 when the mobile terminal 200 moves to the ear And / or backlight. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when at rest, and can be used to identify mobile phone gesture applications (such as horizontal and vertical screen switching, related Games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tap), etc. As for the mobile terminal 200, other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. can also be configured here No longer.

The audio circuit 260, the speaker 261, and the microphone 262 may provide an audio interface between the user and the mobile terminal 200. The audio circuit 260 can transmit the converted signal of the received audio data to the speaker 261, which converts the speaker 261 into a sound signal output; on the other hand, the microphone 262 converts the collected sound signal into a signal, which is received by the audio circuit 260 Convert to audio data, and then output the audio data to the RF circuit 210 to send to, for example, another mobile phone, or output the audio data to the memory 220 for further processing.

The I / O subsystem 270 is used to control input and output external devices, and may include other device input controllers 271, sensor controllers 272, and display controllers 273. Optionally, one or more other input control device controllers 271 receive signals from other input devices 230 and / or send signals to other input devices 230. The other input devices 230 may include physical buttons (press buttons, rocker buttons, etc.) , Dial, slide switch, joystick, click wheel, light mouse (light mouse is a touch sensitive surface that does not display visual output, or an extension of a touch sensitive surface formed by a touch screen). It should be noted that the other input control device controller 271 may be connected to any one or more of the above devices. The display controller 273 in the I / O subsystem 270 receives signals from the display screen 240 and / or sends signals to the display screen 240. After the display screen 240 detects the user input, the display controller 273 converts the detected user input into interaction with the user interface object displayed on the display screen 240, that is, human-machine interaction is realized. The sensor controller 272 may receive signals from one or more sensors 250 and / or send signals to one or more sensors 250.

The processor 280 is the control center of the mobile terminal 200, uses various interfaces and lines to connect various parts of the entire mobile phone, runs or executes software programs and / or modules stored in the memory 220, and calls data stored in the memory 220 To execute various functions and process data of the mobile terminal 200, so as to monitor the mobile phone as a whole. Optionally, the processor 280 may include one or more processing units; preferably, the processor 280 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and application programs, etc. The modem processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 280.

The mobile terminal 200 further includes a power supply 290 (such as a battery) that supplies power to various components. Preferably, the power supply can be logically connected to the processor 280 through a power management system, so as to realize functions such as charging, discharging, and power consumption through the power management system.

Although not shown, the mobile terminal 200 may further include a camera, a Bluetooth module, etc., which will not be repeated here.

Taking the mobile terminal as a mobile phone as an example, in order to protect the internal components of the mobile terminal, the mobile terminal is also provided with a housing structure. The housing structure of the mobile terminal may include at least one of a back cover, a side frame, and a front cover of the mobile phone When the shell structure is used as the front cover, it can be the frame portion of the front cover. Among them, the housing structure of this embodiment is mainly directed to setting a laser engraving pattern on the outer shell for product information marking, and generally, the marking information of the mobile phone is set on the back cover, therefore, it can be understood that in this embodiment, The casing structure of the mobile phone includes at least its back cover, that is, the casing structure of the mobile phone shown in FIG. 9.

The information about the mobile phone is marked on the back cover, and when the housing structure of this embodiment is the back cover of the mobile phone, the back cover of the mobile phone includes a base material layer and an ink layer, and the laser engraving pattern is set on the base material layer instead of ink On the layer, this can reduce the thickness of the ink layer and the material consistency requirements of the substrate layer, thereby reducing the material cost of the back cover of the mobile phone, which will not be repeated here. Of course, the shell structure can include not only the back cover of the mobile phone, but also the back cover and the side frame, it can include the frame part of the back cover and the front cover, or it can be the entire shell of the mobile phone. In the special case of the side frame, the shell structure may include only the frame portion of the front cover of the mobile phone or the side frame. For other mobile terminals than mobile phones, the assembly of the housing structure on it is also the same.

Among them, the base layer as the casing structure of the mobile terminal case is composed of a base material and laser absorbing particles, the laser absorbing particles are dispersed in the base material, the laser absorbing particles are used to absorb laser energy, and the laser engraving pattern is formed on the base layer , The base material can be one or more of the polymethyl methacrylate PMMA, polycarbonate PC, polyethylene terephthalate PET and glass described in Example 1 of this application, or it can be Other materials that meet the requirements of the substrate layer. The base material needs to have good light transmittance, so that visible light enters the ink layer through the base material layer and displays the color of the mobile terminal housing. The base material layer may also be completely composed of a material that can absorb laser energy and meet the requirements of mechanical properties and light transmission, and will not be described in detail.

Of course, in addition to the base material layer and the ink layer, the casing structure of the mobile terminal also includes a reinforcement layer provided on the outermost layer of the casing. The reinforcement layer is used to make the casing structure of the mobile terminal more wear-resistant and have better mechanical properties. , To protect the internal shell structure from scratches or abrasion; a decorative layer may also be provided between the ink layer and the substrate layer of the shell structure, and the decorative layer may include at least one of an electroplating layer, a texture layer, and a silk screen layer Layers and decorative layers are used to make the mobile terminal housing have different appearance effects to improve the aesthetics of the mobile terminal.

As the casing structure of the mobile terminal, a casing structure matching the mobile terminal should be provided according to different casing shapes and specific sizes of the mobile terminal. Among them, the thickness of the base material layer as the main body of the housing structure can be controlled according to the thickness of the housing required for a specific mobile terminal.

In a possible implementation manner, the first housing body in the housing structure of the mobile terminal is a battery cover. The character marking information of the mobile terminal is generally provided on the back cover, that is, the battery cover. Therefore, the first housing body containing the laser engraved pattern is the battery cover of the mobile terminal. Among them, the laser engraving pattern is provided on the base material layer of the first casing body, which can reduce the thickness of the ink layer and the material consistency requirements of the base material layer, thereby reducing the material cost of the battery cover.

In another possible implementation manner, the first housing body is the entire housing of the mobile terminal, so as to improve the overall mechanical performance of the mobile terminal housing, and also make the appearance of the mobile terminal housing more concise and elegant, and will not be described in detail.

In this embodiment, the mobile terminal includes the housing structure described above. The housing structure includes a first housing body. The first housing body includes an ink layer and at least one light-transmissive substrate layer. The substrate layer is located On the outer surface side of the ink layer, the substrate layer has a laser engraved pattern. By setting a laser engraving pattern on the substrate layer, the laser engraving acts on the substrate layer instead of the ink layer, thereby reducing the thickness of the ink layer, reducing the material consistency requirements of the substrate layer, and saving the material of the shell Cost, it can achieve a set of laser engraving parameters for laser engraving of all color shells, improve laser engraving efficiency, further reduce the production cost of mobile terminals and improve the production efficiency of mobile terminals.

Claims

A shell structure, characterized in that it includes a first shell body, the first shell body includes an ink layer and at least one light-transmissive substrate layer, the substrate layer is located on the ink layer On the outer surface side, the substrate layer has a laser engraved pattern.
The shell structure according to claim 1, wherein the base material layer comprises a light-transmissible base material and a plurality of laser absorbing particles dispersed inside the base material, the laser absorbing particles are used to absorb Laser energy during laser engraving.
The casing structure according to claim 2, wherein the laser absorbing particles are used to absorb laser light with a wavelength of 240nm-360nm.
The shell structure according to claim 3, wherein the material of the laser absorbing particles is 2-hydroxy-4-n-octyloxybenzophenone.
The shell structure according to any one of claims 2-4, wherein the base material is an organic material.
The shell structure according to claim 5, wherein the base material is polymethyl methacrylate PMMA, polycarbonate PC or polyethylene terephthalate PET.
The shell structure according to any one of claims 2 to 4, wherein the base material is an inorganic material.
The housing structure according to claim 7, wherein the base material is glass.
The casing structure according to claim 1, wherein the base material layer is entirely composed of a material that can absorb laser energy.
The shell structure according to any one of claims 1-9, wherein the base material layer is at least two layers, and at least two of the base material layers include a first base material layer and a Two base material layers, the base material of the first base material layer and the base material of the second base material layer are different.
The shell structure according to any one of claims 1-10, wherein the outer surface of the first shell body is further provided with a reinforcement layer.
The shell structure according to any one of claims 1 to 11, wherein at least one decorative layer is further provided between the ink layer and the substrate layer, and the decorative layer includes an electroplating layer and a texture At least one of the layer and the silk screen layer.
The shell structure according to claim 12, wherein the decorative layer includes the silk screen layer, the texture layer, and the electroplating layer stacked in this order from the base material layer to the ink layer.
The casing structure according to any one of claims 1-13, wherein the first casing body forms a casing of the mobile terminal.
The casing structure according to any one of claims 1-13, further comprising at least one second casing body, the first casing body and the second casing body together constitute a mobile terminal shell.
A method for manufacturing a shell structure, characterized in that it includes:

An ink layer is provided on the inner surface of the base material layer to form a housing, wherein the base material layer can absorb energy during laser irradiation;

Laser engraving is performed on the casing to form a laser engraving pattern, and the laser engraving pattern is located on the substrate layer.
The method for manufacturing a shell structure according to claim 16, wherein before the ink layer is provided on the inner surface of the base material layer to form a shell, the method further comprises:

Add laser-absorbing particles that can absorb laser energy to the matrix material in the hot-melt state;

The base material and the laser absorbing particles are fused to form the substrate layer.
The method for manufacturing a shell structure according to claim 17, wherein the base material is a light-transmissive material.
A mobile terminal, characterized by comprising the housing structure according to any one of claims 1-15.
The mobile terminal of claim 19, wherein the first housing body in the housing structure is a battery cover.