CN113556891A

CN113556891A - Shell assembly, preparation method of shell assembly and electronic equipment

Info

Publication number: CN113556891A
Application number: CN202010331511.7A
Authority: CN
Inventors: 成乐; 黄志勇; 葛磊; 卢湘武
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-10-26

Abstract

The application provides a casing subassembly, including transparent basement, light-transmitting leather grain layer and colour layer, light-transmitting leather grain layer with the colour layer sets up the relative both sides of transparent basement, or light-transmitting leather grain layer with the colour layer sets up the homonymy of transparent basement, just the colour layer sets up transparent basement with between the light-transmitting leather grain layer, light-transmitting leather grain layer is kept away from a side surface of transparent basement has the leather grain structure, the compliance on light-transmitting leather grain layer is 1mm-7 mm. This casing subassembly has the compliance of dermatoglyph sense of touch and leather, and the outward appearance variability improves simultaneously, has strengthened the visual effect of casing subassembly outward appearance, and then promotes electronic equipment outward appearance competitiveness, avoids the homogenization. The application also provides a preparation method of the shell assembly and an electronic device comprising the shell assembly.

Description

Shell assembly, preparation method of shell assembly and electronic equipment

Technical Field

The application belongs to the technical field of electronic products, and particularly relates to a shell assembly, a preparation method of the shell assembly and electronic equipment.

Background

In the related art, the shell made of the genuine leather greatly improves appearance texture. Because the genuine leather is expensive, so adopt artificial leather to make the body more, have already kept the feel of genuine leather, cheap at the same time. The artificial leather can only present a single solid color, and the appearance variability is small, so the homogenization phenomenon of the prepared shell is serious, and even the aesthetic fatigue is brought to users.

Disclosure of Invention

In view of this, the present application provides a housing assembly, a method for manufacturing the housing assembly, and an electronic device, in which the housing assembly has a touch feeling of leather grains and a softness of leather, so that the housing assembly exhibits an appearance effect of leather, and meanwhile, the variability of the appearance of the housing assembly is enhanced, thereby enhancing the competitiveness of the appearance and avoiding homogenization.

In a first aspect, the application provides a casing subassembly, including transparent basement, light-transmitting leather grain layer and colour layer, light-transmitting leather grain layer with the colour layer sets up transparent basement's relative both sides, or light-transmitting leather grain layer with the colour layer sets up transparent basement's homonymy, just the colour layer sets up transparent basement with between the light-transmitting leather grain layer, light-transmitting leather grain layer is kept away from a side surface of transparent basement has the leather grain structure, the compliance on light-transmitting leather grain layer is 1mm-7 mm.

In a second aspect, the present application provides a method of making a housing assembly, comprising:

provide transparent basement the transparent leather line layer of surface shaping of transparent basement and colour layer, wherein, transparent leather line layer with colour layer shaping is in transparent basement's relative both sides, or transparent leather line layer with colour layer shaping is in transparent basement's homonymy, just colour layer shaping is in transparent basement with between the transparent leather line layer, transparent leather line layer is kept away from a side surface of transparent basement has the leather line structure, the compliance on transparent leather line layer is 1mm-7 mm.

The third aspect, this application provides an electronic equipment, including the display screen, and set up the apron and the casing subassembly of the relative both sides of display screen, casing subassembly includes transparent basement, light-transmitting leather grain layer and colour layer, light-transmitting leather grain layer with the colour layer sets up the relative both sides of transparent basement, or light-transmitting leather grain layer with the colour layer sets up the homonymy of transparent basement, just the colour layer sets up transparent basement with between the light-transmitting leather grain layer, light-transmitting leather grain layer is kept away from a side surface of transparent basement has the leather grain structure, the compliance on light-transmitting leather grain layer is 1mm-7 mm.

The application provides a shell assembly and a preparation method of the shell assembly, the shell assembly has the touch feeling of dermatoglyph by arranging a light-transmitting dermatoglyph layer with a dermatoglyph structure, and meanwhile, the light-transmitting dermatoglyph layer has certain softness, so that the shell assembly has the softness of leather, and further the shell assembly presents the appearance and the touch feeling of the leather; the transparent substrate and the light-transmitting dermatoglyph layer have certain light transmission performance, so that a transparent visual effect is given to the shell assembly; the shell assembly has different appearances by changing the colors and color distribution of the color layers, so that the appearance variability of the shell assembly is enhanced, and homogenization is further avoided; the preparation method of the shell assembly is simple, easy to operate and capable of realizing industrial production; the electronic equipment with the shell assembly improves appearance competitiveness, homogeneity is avoided, and product expressive force is enhanced.

Drawings

In order to more clearly explain the technical solution in the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be described below.

Fig. 1 is a schematic structural diagram of a housing assembly according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure.

Fig. 4 is a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure.

Fig. 7 is a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure.

Fig. 8 is a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure.

Fig. 9 is a schematic flow chart illustrating a method for manufacturing a housing assembly according to an embodiment of the present disclosure.

Fig. 10 is a schematic flow chart illustrating a method for manufacturing a housing assembly according to another embodiment of the present disclosure.

Fig. 11 is a flowchart illustrating operation 102 in fig. 9 according to an embodiment of the present disclosure.

Fig. 12 is a schematic flow chart illustrating a method for manufacturing a housing assembly according to another embodiment of the present disclosure.

Fig. 13 is a schematic flow chart illustrating a method for manufacturing a housing assembly according to another embodiment of the present disclosure.

Fig. 14 is a schematic flow chart illustrating a method for manufacturing a housing assembly according to another embodiment of the present disclosure.

Fig. 15 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Description of the drawings:

the transparent substrate-10, the transparent leather grain layer-20, the color layer-30, the UV transfer printing layer-40, the coating layer-50, the cover bottom layer-60, the protective layer-70, the shell assembly-100, the display screen-200 and the cover plate-300.

Detailed Description

The following is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications are also considered as the protection scope of the present application.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1, which is a schematic structural diagram of a housing assembly according to an embodiment of the present disclosure, the housing assembly 100 includes a transparent substrate 10, a transparent dermatoglyph layer 20 and a color layer 30, the transparent dermatoglyph layer 20 and the color layer 30 are disposed on two opposite sides of the transparent substrate 10, a surface of the transparent dermatoglyph layer 20 away from the transparent substrate 10 has a dermatoglyph structure, and a softness of the transparent dermatoglyph layer 20 is 1mm to 7 mm. Referring to fig. 2, which is a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure, the housing assembly 100 includes a transparent substrate 10, a transparent dermatoglyph layer 20 and a color layer 30, the transparent dermatoglyph layer 20 and the color layer 30 are disposed on the same side of the transparent substrate 10, the color layer 30 is disposed between the transparent substrate 10 and the transparent dermatoglyph layer 20, a surface of one side of the transparent dermatoglyph layer 20, which is far away from the transparent substrate 10, has a dermatoglyph structure, and a softness of the transparent dermatoglyph layer 20 is 1mm to 7 mm.

In the related art, the dermis is expensive, the manufacturing cost of the shell is increased when the dermis is used as the shell, the shell is not beneficial to wide use, and the dermis is not beneficial to animal protection when being used in a large amount. Therefore, artificial leather has also been used as the housing in the related art. The artificial leather can only present a single solid color, has small appearance variability and poor flexibility, and is not beneficial to the application of the shell.

In the application, by arranging the light-transmitting dermatoglyph layer 20 with the dermatoglyph structure, and the dermatoglyph structure on the surface of one side of the light-transmitting dermatoglyph layer 20, which is far away from the transparent substrate 10, that is, the dermatoglyph structure is arranged on the outer side, the shell assembly 100 has the touch feeling of dermatoglyph, so that the grain hand feeling of leather is brought, and meanwhile, the light-transmitting dermatoglyph layer 20 has certain softness, so that the shell assembly 100 has the softness of leather, and the shell assembly 100 presents the appearance and the touch feeling of the leather; the transparent substrate 10 and the light-transmitting dermatoglyph layer 20 have certain light transmission, so that the shell assembly 100 has a transparent visual effect; by changing the color and color distribution of the color layer 30, the housing assembly 100 has different appearances, the variability and flexibility of the appearance of the housing assembly 100 are enhanced, homogenization is avoided, the visual effect that the leather can only present an opaque single color is improved, and the application of the leather is facilitated.

In the present application, the transparent substrate 10 has a certain light transmittance. Optionally, the optical transmittance of the transparent substrate 10 is greater than 80%. Further, the optical transmittance of the transparent substrate 10 is greater than 88%. Further, the optical transmittance of the transparent substrate 10 is greater than 90%. Wherein the optical transmittance is the transmittance of light in the wavelength range of 380nm-780 nm. In the present application, the material forming the transparent substrate 10 is not particularly limited, and may be any known material for an electronic device case, for example. Specifically, the transparent substrate 10 may be a flexible substrate, for example, the material of the transparent substrate 10 may include, but is not limited to, at least one of Polycarbonate (PC), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), Polyamide (PA), Polyetherimide (PEI), and polyphenylene sulfone resin (PPSU). In the related technology, the leather adopts cloth as a substrate, is easy to damage and is not waterproof, and is not beneficial to the large-scale application of the prepared shell; and the transparent substrate that adopts in this application has avoided having used the cloth, and then has improved housing assembly 100's wear resistance, has improved housing assembly 100's waterproof performance simultaneously, and long service life is favorable to its application. In the present application, the transparent substrate 10 may be manufactured by at least one process of injection molding, coating molding, and extrusion molding. In one embodiment, the transparent substrate 10 is made of two or more materials, and the two or more materials can be attached together by making a layer structure from a single material, such as but not limited to an Optically Clear Adhesive (OCA). The optical transparent adhesive has high light transmittance which can reach more than 99%, strong adhesion and good connection effect; the transparent substrate 10 may be prepared by mixing and melting two or more materials, and then performing injection molding, coating molding or extrusion molding. Optionally, the thickness of the transparent substrate 10 is 0.05mm to 1 mm. Further, the transparent substrate 10 has a thickness of 0.1mm to 1 mm. Further, the transparent substrate 10 has a thickness of 0.3mm to 1 mm. Specifically, but not limited to, 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.55mm, 0.7mm, 0.85mm, 1mm, etc., so as to meet the requirement of the housing assembly 100 for impact resistance, and not to be too thick, which meets the requirement of lightness and thinness. In one embodiment, polycarbonate may be used to injection mold a transparent substrate 10 having a thickness of 0.5mm, and the optical transmittance of the transparent substrate 10 is greater than 88%.

In the present application, the specific shape and size of the transparent substrate 10 are not limited, and may be selected and designed according to actual needs, for example, the transparent substrate 10 may be, but not limited to, a back case and/or a middle frame of an electronic device, and the shape thereof may be a 2D shape, a 2.5D shape, or a 3D shape. In one embodiment, the transparent substrate 10 may be processed into a 2.5D shape by injection molding, or into a 3D shape by hot pressing, or into a 2.5D shape by a Computer Numerical Control (CNC) machine, etc. Thereby, the appearance expressive force of the transparent substrate 10 can be improved, so that the housing assembly 100 has more stereoscopic impression. In the present application, the transparent substrate 10 may be directly provided, and other film layer structures may be formed on the surface of the transparent substrate, or the substrate and other film layer structures may be provided and then formed, so as to obtain the housing assembly 100 with the transparent substrate 10. Alternatively, the shaping is carried out by high pressure. In one embodiment, the hot bend forming is performed by a high pressure forming machine. Optionally, the high pressure forming comprises hot pressing at 130-240 deg.C under 15Bar-100Bar for 0.3min-2 min. Further, the high-pressure molding comprises hot pressing for 0.5min to 1.5min at the temperature of 160 ℃ to 200 ℃ and under the molding pressure of 30Bar to 100 Bar. Specifically, a 2.5D shape or a 3D shape may be made, but is not limited thereto. In one embodiment, patterns, characters, and the like, particularly, trademark patterns (Logo), and the like, may be silk-printed on the surface of the transparent substrate 10, so as to improve the appearance effect of the housing assembly 100. Optionally, the silk-screen printing thickness is 1 μm-5 μm, and the baking is carried out at 50-80 ℃ for 20-80 min. Furthermore, the thickness of the silk screen is 1-4 μm, and the shell assembly 100 is baked at 60-80 ℃ for 45-80 min, so that a richer appearance effect is given to the shell assembly 100.

In the present application, the light-transmitting dermatoglyph layer 20 has a dermatoglyph structure on a surface of a side away from the transparent substrate 10. It is understood that the dermatoglyph structure refers to a raised texture structure that is raised on the fingers, palms, toes and soles of the feet. In this application, the dermatoglyph structure can be but not limited to for lines such as cow dermatoglyph, crocodile line, lizard line, ostrich dermatoglyph, python dermatoglyph, litchi line, present concave-convex structure's spatial effect to make casing subassembly 100 have the line of leather, produce the dermatoglyph sense of touch. In one embodiment, the dermatoglyph structure comprises a plurality of convex structures and concave structures which are distributed in a staggered way. It can be understood that the ridge-like structures formed by the raised structures and the groove-like structures formed by the recessed structures are uniformly distributed in a staggered manner to form the dermatoglyph structure, so that the surface of the light-transmitting dermatoglyph layer 20 has a dermatoglyph touch. Alternatively, the height of the raised structures is 20 μm to 120 μm and the depth of the recessed structures is 20 μm to 120 μm to produce a distinct tactile sensation. Furthermore, the height of the convex structure is 30-100 μm, and the depth of the concave structure is 30-100 μm.

In one embodiment of the present application, the light-transmitting dermatoglyph layer 20 may be formed by coating and curing a liquid resin one or more times. Alternatively, the liquid resin may include, but is not limited to, at least one of polyurethane, polycarbonate, and polyvinyl chloride. That is, the material of the light-transmitting dermatoglyph layer 20 includes at least one of polyurethane, polycarbonate and polyvinyl chloride. Further, the liquid resin further includes at least one of an elastic agent, a curing agent, and an organic solvent, so that the formed light-transmitting dermatoglyph layer 20 has a silky and soft elastic touch. In one embodiment, the light-transmitting dermatoglyph layer 20 may be formed by, but is not limited to, spraying, spin coating, casting a polyurethane coating that is cured. Polyurethane coatings are a common class of coatings and can be divided into two-component polyurethane coatings and one-component polyurethane coatings. Two-component polyurethane coatings are generally composed of two parts, an isocyanate prepolymer and a hydroxyl group-containing resin, and are generally referred to as a hardener component and a base component. And may be classified into acrylic polyurethane, alkyd polyurethane, polyester polyurethane, polyether polyurethane, epoxy polyurethane, etc. according to the hydroxyl group-containing component.

In an embodiment of the present application, the light-transmitting leather-grain layer 20 may be formed by coating a liquid resin on the surface of the release paper having the grain and curing the liquid resin. That is, the release paper is used as a carrier and a mold, and the pattern and haze on the surface of the release paper are transferred with liquid resin to form the light-transmitting leather pattern layer 20. It can be understood that the leather pattern paper mold is called release paper in the field of artificial leather, and is release paper which can prevent the adhesion of the prepreg and can also protect the prepreg from being polluted. In one embodiment, the surface of the release paper is coated with liquid resin and cured to form the light-transmitting leather texture layer 20, wherein the curing comprises treatment at 80-150 ℃ for 10-30 min. In the curing process, organic solvents in the liquid resin, such as butanone, dimethylformamide and the like, can be volatilized to form the light-transmitting dermatoglyph layer 20 with a uniform surface. Further, the curing comprises processing at 80-120 ℃ for 10-30 min to rapidly form the light-transmitting dermatoglyph layer 20. In another embodiment, the release paper may be coated several times and cured to form the light-transmitting leather layer 20. Further, the release paper can be peeled from the light-transmitting dermatoglyph layer 20. In the stripping process, the included angle between the trend of the release paper and the trend of the light-transmitting dermatoglyph layer 20 is 100 degrees, 110 degrees, 120 degrees, 135 degrees or 140 degrees, so that a smaller stripping load is generated, the formed light-transmitting dermatoglyph layer 20 can be better protected, and the damage to the light-transmitting dermatoglyph layer 20 in the stripping process is avoided. Adopt from type paper to make the easy operation of light-transmitting dermatoglyph layer 20, can transfer printing to the light-transmitting dermatoglyph layer 20 from the haze of type paper simultaneously, richened light-transmitting dermatoglyph layer 20's visual effect.

In another embodiment of the present application, the light-transmitting leather grain layer 20 may be formed by coating liquid resin, curing to form a film, and then forming a leather grain structure on the surface of the film by hot stamping. As can be understood, the stamping refers to a process of transferring a stamping pattern on a stamped object by using a stamping method. For example, the light-transmitting leather layer 20 is formed by coating a liquid resin on a release film, curing the resin to form a film, and then forming a leather texture on the surface of the film by hot stamping. The release film does not have grains, so that the release film can be quickly separated from the formed light-transmitting dermatoglyph layer 20, and the light-transmitting dermatoglyph layer 20 cannot be damaged during separation. The dermatoglyph structure of the light-transmitting dermatoglyph layer 20 manufactured by adopting a thermoprinting mode can be used for manufacturing a thermoprinting plate as required, so that the dermatoglyph structure can be customized and is more personalized.

In the present application, the thickness of the formed light-transmissive dermatoglyph layer 20 can be controlled by controlling the amount of the liquid resin to be applied, and the thickness of the light-transmissive dermatoglyph layer 20 can be selected according to practical needs, for example, in order to meet the requirement of thinning the housing assembly 100, the thickness of the light-transmissive dermatoglyph layer 20 can be, but is not limited to, 40 μm to 500 μm, 60 μm to 450 μm, 80 μm to 400 μm, 100 μm to 380 μm, 130 μm to 300 μm, or 150 μm to 250 μm. The light-transmitting leather-grain layer 20 is too thin, the softness touch of the light-transmitting leather-grain layer 20 cannot be reflected, and the thickness of the shell assembly 100 is increased due to the too thick light-transmitting leather-grain layer 20, so that the appearance is relatively overstaffed; therefore, the light-transmitting dermatoglyph layer 20 within the above thickness range can not only present a better cortical softness touch feeling, but also does not excessively increase the thickness of the shell assembly 100, which is beneficial to thinning the shell assembly 100. In one embodiment, when the light-transmissive dermatoglyph layer 20 is cured and formed by coating multiple times, the thickness of each coating may be 20 μm to 100 μm, 35 μm to 90 μm, or 40 μm to 80 μm, so that the light-transmissive dermatoglyph layer 20 can be better prepared.

It is understood that softness reflects the degree of softness, smoothness, and flexibility of leather and artificial leather. In the present application, the softness of the light-transmitting leather layer 20 is tested using a standard according to ISO17235:2002(IULTCS/IUP 36) for non-destructive protection. A cylindrical rod of a certain weight is pressed down at a certain speed on the surface of the safely clamped light-transmitting dermatoglyph layer 20, and the extension of the light-transmitting dermatoglyph layer 20 is recorded as the softness of the light-transmitting dermatoglyph layer 20. Optionally, the softness of the light-transmitting dermatoglyph layer 20 is 1mm-7 mm. In one embodiment, the softness of the light-transmitting dermatoglyph layer 20 is 1mm to 7mm, which is measured by a leather softness tester in a metal ring with a diameter of 20 mm. Softness is too low, influences toughness, and softness is too high, and the touch is felt then not good, and the softness of light-transmitting dermatoglyph layer 20 is 1mm-7mm in this application, has guaranteed the toughness of light-transmitting dermatoglyph layer 20, makes casing subassembly 100 have the soft sense of touch of cortex simultaneously for the casing subassembly 100 that this application provided can regard as imitative skin casing to use, is favorable to its application. Furthermore, the softness of the light-transmitting dermatoglyph layer 20 is 2mm-6mm, 3mm-5mm and the like. In particular, the softness of the light-transmitting dermatoglyph layer 20 can be, but is not limited to, 1mm, 1.5mm, 2.5mm, 3mm, 4mm, 4.5mm, or 6 mm.

It is understood that shore hardness is a reading of the value measured by the shore durometer and is commonly used to evaluate the hardness of more elastic or softer hand materials. Optionally, the shore hardness of the light-transmitting dermatoglyph layer 20 is less than 90A. The Shore hardness is too high, and the touch hand feeling is not good; the shore hardness of the light-transmitting leather-grain layer 20 is less than 90A, so that the light-transmitting leather-grain layer 20 has elasticity similar to that of leather, has good touch feeling, and is more beneficial to application. Furthermore, the shore hardness of the light-transmitting dermatoglyph layer 20 is less than 85A, so that the elasticity of the light-transmitting dermatoglyph layer 20 is further enhanced. In one embodiment, the shore hardness of the light-transmitting dermatoglyph layer 20 is 20A-80A, so as to prevent the toughness from being affected by too low shore hardness and too high hand elasticity. In one embodiment, the ratio and content of the components in the liquid resin can be controlled such that the light-transmitting leather layer 20 has a certain softness and shore hardness, which gives the shell assembly 100 a feeling of leather.

In the present application, the light transmissive dermatoglyph layer 20 has a certain light transmittance. The optical transmittance of the light-transmitting dermatoglyph layer 20 is too low, which affects the rendering effect of the color layer 30. Optionally, the optical transmittance of the light-transmissive dermatoglyph layer 20 is greater than 30%. If the optical transmittance of the light-transmitting leather layer 20 is too high, the sense of transparency is too high, which affects the appearance of the leather effect, and even the leather effect is lost. Further, the optical transmittance of the light-transmitting dermatoglyph layer 20 is 40 to 88 percent. For example, the light transmissive dermatoglyph layer 20 has a transmittance of 40% to 88% at 550 nm.

In the application, the haze of the formed transparent dermatoglyph layer 20 can be adjusted by controlling the surface state of the release paper, such as the haze and the roughness of the texture; the haze of the formed light-transmitting dermatoglyph layer 20 can also be adjusted by adjusting the liquid resin, such as the components, the particle size and the content ratio thereof. As can be appreciated, haze is the appearance of a cloudiness or cloudiness in the interior or surface of a transparent or translucent material due to light diffusion; haze is also referred to as a matte effect. The light-transmitting dermatome 20 may have a certain haze such that the housing assembly 100 exhibits different appearance effects. In one embodiment, the haze of the light transmissive dermatoglyph layer 20 is 5% to 60%. Further, the haze of the transparent dermatoglyph layer 20 is 10% -55%. Further, the haze of the light-transmitting dermatoglyph layer 20 is 12 to 50 percent. The haze of the transparent grain layer 20 is too low, so that the transparency is enhanced, and the appearance of the leather effect is influenced, and even the appearance effect of the leather is lost by the transparent grain layer 20 due to the too low haze; the haze of the light-transmitting dermatoglyph layer 20 is too high to scatter light too strongly, and the appearance effect of the color layer 30 cannot be presented, which affects the presentation of the overall appearance effect of the housing assembly 100. Therefore, the transparent dermatoglyph layer 20 within the haze range can not only present a better leather appearance, but also better present the appearance effect of the color layer 30, and improve the appearance expressive force of the housing assembly 100.

In an embodiment of the present application, when the light-transmissive dermatoglyph layer 20 is disposed on the surface of the transparent substrate 10, the transparent substrate 10 and the light-transmissive dermatoglyph layer 20 may be connected by an adhesive, for example, an ultraviolet light-curable adhesive. In one embodiment, the surface of the transparent substrate 10 is coated with an ultraviolet light-curable adhesive, and then the transparent dermatoglyph layer 20 is covered on the transparent substrate 10, and then the transparent substrate 10 is pressed and cured to be connected together. Furthermore, the materials can be pressed by rolling, and the pressing temperature is 100-150 ℃. Further, the curing comprises firstly curing by an LED lamp, wherein the curing energy of the LED lamp is 800mJ/cm²2500mJ/cm²Then curing by a mercury lamp with the curing energy of 800mJ/cm²-1200mJ/cm²So that the curing is complete and the curing effect is excellent.

In another embodiment of the present application, when the light-transmitting dermatoglyph layer 20 is disposed on the surface of the transparent substrate 10, the light-transmitting dermatoglyph layer 20 may be further formed with an adhesive layer on the surface thereof, and then attached to the transparent substrate 10. In one embodiment, the surface of the light-transmissive dermatoglyph layer 20 is coated with an adhesive and cured to form a bonding layer. In one embodiment, the adhesive layer may be, but is not limited to, a polyurethane type glue. Alternatively, the tie layer may be formed after multiple applications and curing. Further, the curing can be baking at 80-120 ℃ for 10-30 min. Further, coating can be performed 2 to 5 times, and the thickness of each coating is 20 μm to 120 μm. Further, coating may be performed 2 to 3 times, each coating having a thickness of 20 μm to 100 μm. In one embodiment, the bonding layer may be formed to a thickness of, but not limited to, 40 μm to 300 μm. In another embodiment, the total thickness of the light transmissive dermatoglyph layer 20 and the bonding layer may be, but is not limited to, 80 μm to 800 μm. In the present application, the bonding layer has a certain light transmittance, for example, an optical transmittance greater than 40%, 50%, 60%, or 80%, so as to avoid affecting the appearance of other film layer structures. In another embodiment, the light transmissive dermatoglyph layer 20 and the adhesive layer are disposed on the surface of the transparent substrate 10, and the adhesive layer is disposed between the transparent substrate 10 and the light transmissive dermatoglyph layer 20, and bonded together by pressing and curing. Optionally, the curing is completed by rolling and pressing at a pressing temperature of 100-150 ℃, baking at 80-120 ℃ for 10-60 min after rolling, for example, the curing can be performed in a tunnel furnace after rolling.

In the present application, the color layer 30 provides a color visual effect to the housing assembly 100. The color of the color layer 30 may be, but is not limited to, yellow, red, blue, green, purple, etc.; the color plate can also be spliced by multiple colors to form a color collision visual effect; and can also be a gradient color layer. In one embodiment, the gradation of two or more colors is realized by disposing different colors of ink in different areas, resulting in a color layer 30 with gradation, for example, the color difference between adjacent ink areas is less than 2, thereby better realizing the gradation effect. In another embodiment, by disposing different color inks in different areas, color collision of two or more colors is achieved, resulting in the color layer 30 with color collision effect, for example, the color layer 30 has a first area and a second area with a color difference larger than 4, thereby achieving better color collision effect.

In the embodiment, the color layer 30 may be formed by coating, printing, offset-printing color ink, and curing. In one embodiment, the color ink may be applied by spraying and cured to form the color layer 30. Optionally, the curing is baking at 60-90 ℃ for 30-100 min. Further, the curing is baking for 60min to 90min at the temperature of 80 ℃ to 90 ℃. In the present application, the thickness of the color layer 30 is not particularly limited, for example, the thickness of the color layer 30 may be 10 μm to 30 μm, 15 μm to 30 μm, or 18 μm to 26 μm, and specifically may be, but is not limited to, 10 μm, 12 μm, 20 μm, 25 μm, 30 μm, and the like. The color layer 30 within this range not only can make the housing assembly 100 have a better color appearance, but also does not increase the thickness of the housing assembly 100 too much, which is beneficial to the lightness and thinness of the whole structure.

In an embodiment of the present application, when the housing assembly 100 only includes the transparent substrate 10, the light-transmissive dermatoglyph layer 20 and the color layer 30, the color layer 30 may be a solid opaque layer, so that the appearance effect of the housing assembly 100 can be better presented. In another embodiment of the present application, when the housing assembly 100 includes not only the transparent substrate 10, the light-transmissive dermatoglyph layer 20 and the color layer 30, but also other decorative layers, such as but not limited to a texture layer, an optical film layer, a metal film layer, etc., the color layer 30 has a certain light-transmissive property. Optionally, the optical transmittance of the color layer 30 is greater than 40%. Further, the optical transmittance of the color layer 30 is greater than 50%. Furthermore, the optical transmittance of the color layer 30 is greater than 70%, so that the color layer 30 is better stacked with other decorative layers, which is beneficial to displaying the appearance effect of the housing assembly 100.

In the present application, the housing assembly 100 further includes a UV transfer layer 40, wherein the UV transfer layer 40 may or may not have a texture. When UV transfer printing layer 40 has the texture, that is to say, UV transfer printing layer 40 is the texture layer, can make casing subassembly 100 produce the visual effect of dazzling light, brings the light and shadow flow change, promotes outward appearance expressive force. For example, the texture may be, but is not limited to, a fantasy colored texture at the nanometer scale. In an embodiment of the present application, the UV transfer layer 40 may be formed by applying an ultraviolet curing paste, and performing transfer and curing. In one embodiment, the UV-curable adhesive is transferred and cured by an LED lamp, and the curing energy of the LED lamp is 800mJ/cm²-2500mJ/cm²Curing with mercury lamp at 550mJ/cm²-1500mJ/cm²To produce the UV transfer layer 40. Optionally, the material of the uv curable adhesive may include at least one of urethane acrylate, unsaturated polyester, and epoxy acrylate. Further, the material of the uv curable adhesive may include urethane acrylate. In one embodiment, the UV transfer layer 40 is non-textured. In another embodiment, the UV transfer layer 40 has a nano-scale fantasy-colored fine texture to increase the apparent expressive force of the case assembly 100. Alternatively, the thickness of the UV transfer layer 40 may be 5 μm to 15 μm, and particularly, but not limited to, 6 μm, 7 μm, 8 μm, 10 μm, 12 μm, 13 μm, 15 μm, etc., and within this thickness range, may be formedThe UV transfer printing layer 40 has a good texture effect, the UV transfer printing layer 40 is poor in impact resistance and easy to crack due to overlarge thickness, the formed texture is not obvious due to the overlarge thickness, the visual appearance of light and shadow flowing is not obvious, and the difficulty in controlling the preparation process is increased.

Referring to fig. 3, a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure is shown, wherein a light-transmissive dermatoglyph layer 20 and a color layer 30 are disposed on two opposite sides of a transparent substrate 10, and a UV transfer layer 40 is disposed on a surface of the color layer 30 away from the light-transmissive dermatoglyph layer 20. Referring to fig. 4, which is a schematic structural view of a housing assembly according to another embodiment of the present disclosure, a light-transmissive dermatoglyph layer 20 and a color layer 30 are disposed on two opposite sides of a transparent substrate 10, and a UV transfer layer 40 is disposed between the transparent substrate 10 and the color layer 30. Referring to fig. 5, which is a schematic structural view of a housing assembly according to another embodiment of the present disclosure, a transparent dermatoglyph layer 20 and a color layer 30 are disposed on two opposite sides of a transparent substrate 10, and a UV transfer layer 40 is disposed between the transparent substrate 10 and the transparent dermatoglyph layer 20. Therefore, when the UV transfer layer 40 has the texture, the shell assembly 100 is endowed with a more varied appearance, and meanwhile, when the UV transfer layer 40 is arranged between the transparent substrate 10 and the color layer 30, or the UV transfer layer 40 is arranged between the transparent substrate 10 and the light-transmitting dermatoglyph layer 20, the texture effect of the UV transfer layer 40 can be better represented by the backing of the color layer 30, so that a more obvious light and shadow flowing effect is realized; when the UV transfer layer 40 is non-textured, it may also act as a tie layer so that the film layer structures in the housing assembly 100 may better be joined together.

Referring to fig. 6, a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure is shown, wherein a light-transmitting dermatoglyph layer 20, a color layer 30, and a transparent substrate 10 are sequentially stacked, and a UV transfer layer 40 is disposed on a side surface of the transparent substrate 10 away from the light-transmitting dermatoglyph layer 20. Referring to fig. 7, a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure is shown, which is different from fig. 6 in that a UV transfer layer 40 is disposed between a transparent substrate 10 and a color layer 30. Referring to fig. 8, a schematic structural diagram of a housing assembly according to another embodiment of the present application is shown, which is different from fig. 7 in that a UV transfer layer 40 is disposed between a light-transmissive dermatoglyph layer 20 and a color layer 30. Therefore, when the UV transfer layer 40 has the texture, the shell assembly 100 is endowed with a more varied appearance, and meanwhile, when the UV transfer layer 40 is arranged between the light-transmitting dermatoglyph layer 20 and the color layer 30, the texture effect of the UV transfer layer 40 can be better represented by the contrast of the color layer 30, so that a more obvious light and shadow flowing effect is realized; when the UV transfer layer 40 is non-textured, it may also act as a tie layer so that the film layer structures in the housing assembly 100 may better be joined together.

In the present application, the housing assembly 100 further includes a film coating layer 50, and the film coating layer 50 enables the housing assembly 100 to have different gloss variations at different angles, thereby providing different textures and improving the appearance expression. In this application, because light-transmitting dermatoglyph layer 20, transparent basement 10 and colour layer 30 can have certain light transmissivity, consequently, add coating film layer 50 back, can see different gloss in one side that transparent basement 10 was kept away from on light-transmitting dermatoglyph layer 20, produce different feel, further changed the outward appearance of current leather, each layer stack makes casing subassembly 100 have richter changeable visual effect, promotes casing subassembly 100's expressive force.

In the present embodiment, the coating layer 50 may be formed by, but not limited to, physical vapor deposition, such as evaporation, sputtering, ion plating, and the like. In the present application, the coating layer 50 includes at least one of an optical film layer and a metal film layer. The optical film layer presents different gloss texture at different angles, so that a colorful color change effect is brought, and the metal film layer can bring metal gloss texture. Optionally, the coating layer 50 may be a single-layer film structure or a multi-layer film structure. The thickness of the coating layer 50 may be, but is not limited to, 20nm to 500nm to make the appearance effect of the housing assembly 100 more noticeable.

It will be appreciated that the optical film layer is a layer of optical medium material that transmits light through its interface, and that the reflection, refraction, etc. of light passing through the optical film layer can be changed to cause the housing assembly 100 to exhibit a gloss change, such as a visual effect of different color gloss at different angles. The reflectivity, refractive index and light transmission of the optical film layer are changed by changing the material, thickness and number of layers of the optical film layerAnd the different visual effects are realized, and the requirements under different scenes are met. The optical film layer may be made of inorganic or organic materials. Optionally, the organic substance comprises at least one of a polyether, a polyester, a fluoropolymer, and a silicon-containing polymer. When the material of optics rete is the organic matter, optics rete flexibility is good, and the bendability is good, can tailor the optics rete that obtains required size. Optionally, the inorganic substance includes at least one of an inorganic oxide and an inorganic fluoride. Further, the optical film layer comprises TiO₂、NbO₂、Nb₂O₃、Nb₂O₂、Nb₂O₅、SiO₂And ZrO₂At least one of (1). In one embodiment, the optical film layer may be TiO₂Layer, NbO₂Layer, Nb₂O₃Layer, Nb₂O₂Layer, Nb₂O₅Layer, SiO₂Layer and ZrO₂The combination of at least two layers in the layer enables the optical film layer to have the effect of color and luster texture.

In the present application, the optical film layer may be a single-layer film structure or a multi-layer film structure, and the desired functions may be achieved by controlling the material and thickness and the coordination between the layers. Alternatively, the optical film layer is formed by alternately laminating at least two optical films having different refractive indexes. That is, when the optical film layer is composed of a plurality of optical films, refractive indices of adjacent optical films are different. Specifically, the optical film layer may include, but is not limited to, 2, 3, 4, 5, 6, 7, or 8 optical films. Optionally, the thickness of the optical film layer is 20nm to 500nm, specifically, but not limited to 80nm, 100nm, 180nm, 250nm, 300nm, 470nm, 500nm and the like, when the optical film layer is too thin, the gloss texture effect of the optical film layer is too weak, when the optical film layer is too thick, the stress in the film layer is too large, the film layer is easy to fall off, the thickness range is favorable for presenting the visual effect of the optical film layer, and meanwhile, the service life of the optical film layer is ensured. In the present application, the optical transmittance of the optical film layer is greater than 30% so that the visual effect of other layer structures can be exhibited. Optionally, the optical transmittance of the optical film layer is greater than 50%.

In the present application, the metal film layer provides the housing assembly 100 with a metallic luster, thereby improving a metallic texture. The metal film layer is made of metal material, which may include but not limited to indium or indium-tin alloy. In one embodiment, the metal film layer can be prepared by physical vapor deposition, and has good thickness uniformity and high compactness, thereby improving the metal texture of the housing assembly 100. In one embodiment, the metal film layer prepared by the non-conductive electroplating process is non-conductive, and the wireless communication transmission effect is not influenced when the metal film layer is used for electronic equipment. In one embodiment, the metal film layer can be formed by evaporating and plating pure indium by using an electron gun. In another embodiment, the metal film layer can be made by magnetron sputtering indium tin alloy plating. Specifically, the coating time can be adjusted according to the required appearance effect, and the longer the coating time is, the thicker the metal film layer is, and the brighter the metal luster effect is. Optionally, the thickness of the metal film layer is 5nm to 50nm, which is beneficial to manufacturing the non-conductive metal film layer, and avoids influencing the application of the housing assembly 100 in the electronic device.

Referring to fig. 3, a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure is shown, wherein a light-transmissive dermatoglyph layer 20 and a color layer 30 are disposed on two opposite sides of a transparent substrate 10, and a film coating layer 50 is disposed on a surface of the color layer 30 away from the light-transmissive dermatoglyph layer 20. Referring to fig. 4, a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure is shown, wherein a coating layer 50 may be disposed between the transparent substrate 10 and the color layer 30. Referring to fig. 5, a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure is shown, wherein a film coating layer 50 may be disposed between a transparent substrate 10 and a light-transmissive dermatoglyph layer 20.

Referring to fig. 6, a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure is shown, in which a light-transmitting dermatoglyph layer 20, a color layer 30, and a transparent substrate 10 are sequentially stacked, and a film coating layer 50 is disposed on a side surface of the transparent substrate 10 away from the light-transmitting dermatoglyph layer 20. Referring to fig. 7, a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure is shown, which is different from fig. 6 in that a coating layer 50 may be disposed between a transparent substrate 10 and a color layer 30. Referring to fig. 8, a schematic structural diagram of a housing assembly according to another embodiment of the present disclosure is shown, which is different from fig. 6 in that a coating layer 50 may be disposed between the light-transmissive dermatoglyph layer 20 and the color layer 30.

In the present application, the coating layer 50 provides the housing assembly 100 with a more varied appearance. When the coating layer 50 is arranged between the color layer 30 and the light-transmitting dermatoglyph layer 20, the optical transmittance of the coating layer is more than 40%. Furthermore, the optical transmittance of the coating layer is more than 60%. Furthermore, the optical transmittance of the coating layer is more than 80%. At this time, the appearance effect of the color layer 30 can be better presented, and the phenomenon that the optical transmittance of the coating layer 50 is too low to influence the presentation of the effect of the color layer 30 is avoided. In an embodiment, the coating layer 50 is an optical film layer, which not only can provide the effect of changing the gloss of the housing assembly 100, but also can make the color of the color layer 30 better appear, so that the housing assembly 100 has a rich visual effect. When the coating layer 50 is disposed on the side of the color layer 30 away from the light-transmitting texture layer 20, the optical transmittance of the coating layer 50 is not particularly limited and may be selected as needed.

In the present embodiment, the housing assembly 100 includes a UV transfer layer 40 and a coating layer 50. In this case, the UV transfer layer 40 and the plating layer 50 may be provided in accordance with the manner in which the UV transfer layer 40 and the plating layer 50 are provided. When the UV transfer layer 40 has the texture, the case assembly 100 provided with the UV transfer layer 40 and the coating layer 50 presents a more varied appearance.

In one embodiment of the present application, the UV transfer layer 40 and the coating layer 50 are stacked. In one embodiment, at least one of the transparent substrate 10 and the color layer 30 is disposed between the UV transfer layer 40 and the coating layer 50 at an interval. In another embodiment, the UV transfer layer 40 is disposed on the surface of the coating layer 50, i.e., there is no other film layer structure space between the UV transfer layer 40 and the coating layer 50. Further, the UV transfer layer 40 is disposed between the coating layer 50 and the light-transmissive dermatoglyph layer 20. At this time, when the UV transfer layer 40 is non-textured, it may also serve as a connection layer, allowing the coating layer 50 to be better disposed on the housing assembly 100; when the UV transfer layer 40 has a texture, the presence of the coating layer 50 makes the texture effect of the UV transfer layer 40 more apparent. Referring to fig. 3, when the housing assembly 100 includes the UV transfer layer 40 and the coating layer 50, the UV transfer layer 40 is disposed between the transparent substrate 10 and the coating layer 50. At this moment, coating film layer 50 can play the set off effect to the visual effect that has the UV rendition layer 40 of texture, can be more obvious present texture effect, makes casing subassembly 100 have colorful colour and the texture effect that the light and shadow flow changes, compares with the effect of the single opaque outward appearance of current leather and has very big improvement, promotes casing subassembly 100's outward appearance expressive force by a wide margin, improves designability. Optionally, the optical transmittance of the UV transfer layer 40 is greater than 85%, so that the appearance effect of the coating layer 50 is more obvious.

In another embodiment of the present application, the UV transfer layer 40 and the coating layer 50 are disposed in the same layer, that is, the UV transfer layer 40 and the coating layer 50 are disposed between the same layer structure at the same time in the manner described above. Optionally, the UV transfer layer 40 and the coating layer 50 are disposed adjacent to each other. It will be appreciated that the abutment may be provided around or on one side. In one embodiment, the UV transfer layer 40 is disposed around the coating layer 50. In another embodiment, a coating layer 50 is disposed around the UV transfer layer 40. In yet another embodiment, the UV transfer layer 40 is disposed on one side of the coating layer 50. The arrangement mode enables the appearance of the shell assembly 100 to have areas with various visual effects, and appearance expressive force is improved.

In one embodiment of the present application, the housing assembly 100 further includes a cover bottom layer 60, and the optical transmittance of the cover bottom layer 60 is less than or equal to 1%. When the housing assembly 100 is used in an electronic device, the cover bottom layer 60 can shield elements inside the electronic device to prevent light leakage, and can also be used as an adhesive surface. In one embodiment, the cover bottom layer 60 may be formed by printing a cover bottom ink, such as a black ink, a gray ink, a white ink, etc., multiple times and curing. Referring to fig. 3, when the light-transmissive dermatoglyph layer 20 and the color layer 30 are disposed on two opposite sides of the transparent substrate 10, the cover bottom layer 60 is disposed on a surface of the color layer 30 away from the light-transmissive dermatoglyph layer 20. In one embodiment, when the housing assembly 100 further includes the UV transfer layer 40 and the coating layer 50, the UV transfer layer 40 and the coating layer 50 are sequentially disposed on the surface of the color layer 30 away from the transparent leather layer 20, and the cover bottom layer 60 is disposed on the surface of the coating layer 50 away from the UV transfer layer 40. Referring to fig. 6, when the light-transmissive dermatoglyph layer 20, the color layer 30 and the transparent substrate 10 are sequentially stacked, the cover bottom layer 60 is disposed on a surface of the transparent substrate 10 away from the light-transmissive dermatoglyph layer 20. In one embodiment, when the housing assembly 100 further includes the UV transfer layer 40 and the coating layer 50, the UV transfer layer 40 and the coating layer 50 are sequentially disposed on the surface of the transparent substrate 10 away from the transparent leather layer 20, and the cover bottom layer 60 is disposed on the surface of the coating layer 50 away from the UV transfer layer 40. The bottom cover layer 60 is provided to facilitate the application of the housing assembly 100 in an electronic device, and the thickness of the bottom cover layer 60 can be selected according to actual requirements. In order to facilitate the lightness and thinness of the case assembly 100, the thickness of the cover bottom layer 60 may be 10 μm to 30 μm.

In an embodiment of the present application, please refer to fig. 3, wherein the housing assembly 100 further includes a protection layer 70, the protection layer 70 is disposed on a side surface of the light-transmissive dermatoglyph layer 20 away from the transparent substrate 10, and the protection layer 70 protects the housing assembly 100. In one embodiment, the protective layer 70 may be formed by spraying an anti-fouling material, an abrasion resistant material, or the like. In the present application, the optical transmittance of the protective layer 70 is greater than 80% to avoid the setting of the protective layer from affecting the appearance of other film layers. Optionally, the thickness of the protective layer 70 is 1 μm to 10 μm. Since the surface of the light-transmitting leather layer 20 has a leather texture structure, in order to prevent the protective layer 70 from affecting the leather texture touch, when the thickness of the protective layer 70 is within the above range, the protective layer can protect the housing assembly 100, and at the same time, the leather texture touch is not affected, so that the housing assembly 100 still has the leather texture touch. Further, the shore hardness of the protective layer 70 is less than 90A, so that the arrangement of the protective layer 70 does not affect the tactile sensation of the light-transmitting leather-grain layer 20.

By arranging the light-transmitting dermatoglyph layer 20 with the dermatoglyph structure, the shell assembly 100 has the touch of dermatoglyphs, and meanwhile, the light-transmitting dermatoglyph layer 20 has certain softness, so that the shell assembly 100 has the softness of leather, and the shell assembly 100 presents the appearance and the touch of the leather; the transparent substrate 10 and the light-transmitting dermatoglyph layer 20 have certain light transmission, so that the shell assembly 100 has a transparent visual effect; by varying the color and color distribution of the color layer 30 so that the housing assembly 100 has a different appearance, the variability of the appearance of the housing assembly 100 is enhanced, thereby avoiding homogenization.

The present application also provides a method of making a housing assembly 100 of any of the embodiments above, comprising:

providing a transparent substrate 10, and forming a light-transmitting dermatoglyph layer 20 and a color layer 30 on the surface of the transparent substrate 10, wherein the light-transmitting dermatoglyph layer 20 and the color layer 30 are formed on two opposite sides of the transparent substrate 10, or the light-transmitting dermatoglyph layer 20 and the color layer 30 are formed on the same side of the transparent substrate 10, the color layer 30 is formed between the transparent substrate 10 and the light-transmitting dermatoglyph layer 20, the surface of one side of the light-transmitting dermatoglyph layer 20, which is far away from the transparent substrate 10, has a dermatoglyph structure, and the softness of the light-transmitting dermatoglyph layer 20 is 1mm-7 mm.

Referring to fig. 9, a schematic flow chart of a method for manufacturing a housing assembly according to an embodiment of the present disclosure includes the following steps:

operation 101: a transparent substrate is provided.

Operation 102: and forming a light-transmitting dermatoglyph layer on the transparent substrate, wherein the surface of one side, away from the transparent substrate, of the light-transmitting dermatoglyph layer is provided with a dermatoglyph structure, and the softness of the light-transmitting dermatoglyph layer is 1-7 mm.

Operation 103: and forming a color layer on the surface of one side of the transparent substrate, which is far away from the light-transmitting leather grain layer.

Referring to fig. 10, a schematic flow chart of a method for manufacturing a housing assembly according to another embodiment of the present disclosure includes the following steps:

operation 201: a transparent substrate is provided.

Operation 202: forming a color layer on the transparent substrate.

Operation 203: and forming a light-transmitting dermatoglyph layer on the color layer, wherein the surface of one side, far away from the transparent substrate, of the light-transmitting dermatoglyph layer is provided with a dermatoglyph structure, and the softness of the light-transmitting dermatoglyph layer is 1-7 mm.

In an embodiment of the present application, the transparent substrate 10 may be manufactured by at least one of injection molding, coating molding, and extrusion molding. The material of the transparent substrate 10 may include, but is not limited to, at least one of Polycarbonate (PC), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), Polyamide (PA), Polyetherimide (PEI), and polyphenylene sulfone resin (PPSU). In one embodiment, the transparent substrate 10 is made of two or more materials, and the two or more materials can be attached together by making a layer structure from a single material, such as but not limited to an Optically Clear Adhesive (OCA). For example, polycarbonate may be selected for injection molding a 0.5mm transparent substrate 10, the transparent substrate 10 having an optical transmittance greater than 88%.

In one embodiment of the present disclosure, the color layer 30 may be formed by coating, printing, offset printing a color ink, and curing. In one embodiment, the color ink may be applied by spraying and cured to form the color layer 30. Optionally, the curing is baking at 60-90 ℃ for 30-100 min. Further, the curing is baking for 60min to 90min at the temperature of 80 ℃ to 90 ℃. In another embodiment, the gradation of two or more colors is realized by disposing different colors of ink in different areas, resulting in a color layer 30 with gradation, for example, the color difference of adjacent ink areas is less than 2, thereby better realizing the gradation effect. In yet another embodiment, by disposing different color inks in different areas, color collision of two or more colors is achieved, resulting in a color layer 30 with color collision effect, e.g., the color difference between adjacent ink areas is greater than 4, thereby better achieving the color collision effect.

Referring to fig. 11, a flowchart of operation 102 in fig. 9 according to an embodiment of the present application is provided, which includes the following steps:

operation 1021: a release paper having a texture is provided.

Operation 1022: and coating the liquid resin on the surface of the release paper, and curing to form the light-transmitting leather grain layer.

In operation 1022, the light-transmitting leather-grain layer 20 may be formed by, but not limited to, spraying, spin coating, or casting, and curing by coating a liquid resin on the surface of the release paper one or more times. In one embodiment, curing comprises treatment at 80 ℃ to 150 ℃ for 10min to 30 min.

Operation 1023: and stripping the release paper from the light-transmitting dermatoglyph layer, wherein the surface of the light-transmitting dermatoglyph layer is provided with a dermatoglyph structure corresponding to the grains.

In operation 1023, when the release paper is peeled off from the transparent dermatoglyph layer 20, the included angle between the direction of the release paper and the direction of the transparent dermatoglyph layer 20 is 100 degrees to 140 degrees, the peeling load is small, the formed transparent dermatoglyph layer 20 can be better protected, and the damage to the transparent dermatoglyph layer 20 caused by the peeling process is avoided.

Operation 1024: and arranging the light-transmitting dermatoglyph layer on the surface of the transparent substrate.

In operation 1024, the light transmissive dermatoglyph layer 20 may be disposed on the transparent substrate 10 by, but is not limited to, an adhesive, which may be, but is not limited to, an optically clear adhesive. It will be appreciated that the light transmissive dermatoglyph layer 20 has two oppositely disposed surfaces, one of which has a dermatoglyph structure, and thus, the surface having the dermatoglyph structure is disposed on the side away from the transparent substrate 10, so that the housing assembly 100 has a dermatoglyph touch.

It is understood that operation 202 in fig. 10 may also be implemented by the above steps to obtain the light-transmissive dermatoglyph layer 20, except that the light-transmissive dermatoglyph layer 20 is disposed on the color layer 30 by an adhesive, which is not described in detail herein.

The preparation method of the shell assembly 100 is simple to operate and easy for mass production, the shell assembly 100 with the skin texture touch and the soft leather touch can be prepared, the appearance variability is enhanced, the homogenization is avoided, and the application is facilitated.

In one embodiment of the present application, the method of making the housing assembly 100 further includes forming at least one of the UV transfer layer 40 and the coating layer 50. The UV transfer layer 40 may be formed by coating an ultraviolet curing paste, and performing transfer and curing. The coating layer 50 may be formed by physical vapor deposition, such as evaporation, sputtering, ion plating, etc. Add UV rendition layer 40 and/or coating film layer 50 in casing subassembly 100, make casing subassembly 100 produce the visual effect of dazzling light, have the gloss change at different angles, bring different feel and the change of light shadow flow, promote outward appearance expressive force.

In an embodiment of the present application, the method for manufacturing the housing assembly 100 further includes printing a cover bottom ink to form the cover bottom layer 60, wherein the optical transmittance of the cover bottom layer 60 is less than or equal to 1% to perform a shielding function, prevent light leakage, and function as an adhesion surface in the whole assembly.

In an embodiment of the present application, the method for manufacturing the housing assembly 100 further includes performing high pressure molding. The transparent substrate 10 provided with the above-described other film layers is placed in a high-pressure molding machine and subjected to hot-bending molding, thereby obtaining the case assembly 100 having a desired curvature. For example, the 3D housing may be obtained by high pressure molding. Optionally, the high-pressure molding temperature is 130-240 ℃, the pressure is 15Bar-100Bar, and the processing time is 0.3min-2 min. In the present application, the transparent substrate 10 of a desired shape may be directly provided, and then the arrangement of other film layer structures may be performed; the transparent substrate 10 may be formed at high pressure after being provided with other film structures, which is more beneficial to the preparation of other films and is simpler and more convenient to operate.

In an embodiment of the present application, the method for preparing the housing assembly 100 further includes forming the protective layer 70 on the surface of the light-transmissive dermatoglyph layer 20 away from the transparent substrate 10. In one embodiment, the protective layer 70 may be formed by spraying an anti-fouling material, an abrasion resistant material, or the like. Optionally, the thickness of the protective layer 70 is 1 μm to 10 μm. Since the surface of the light-transmitting leather layer 20 has a leather texture structure, in order to prevent the protective layer 70 from affecting the leather texture touch, when the thickness of the protective layer 70 is within the above range, the protective layer can protect the housing assembly 100, and at the same time, the leather texture touch is not affected, so that the housing assembly 100 still has the leather texture touch.

Referring to fig. 12, a schematic flow chart of a method for manufacturing a housing assembly according to another embodiment of the present application is substantially the same as that of fig. 9, except that the method further includes the following steps:

operation 104: and sequentially forming a UV transfer printing layer and a coating layer on the surface of the color layer far away from the transparent substrate.

Operation 105: and printing cover bottom ink on the coating layer to form a cover bottom layer, wherein the optical transmittance of the cover bottom layer is less than or equal to 1%.

Referring to fig. 13, a schematic flow chart of a method for manufacturing a housing assembly according to another embodiment of the present application is substantially the same as that of fig. 9, except that the method further includes the following steps:

operation 106: and forming a protective layer on the surface of the light-transmitting dermatoglyph layer far away from the transparent substrate.

In an embodiment of the present application, when the light-transmissive dermatoglyph layer 20 and the color layer 30 are disposed on the same side of the transparent substrate 10, the preparation method further includes: and sequentially forming a UV transfer printing layer 40 and a coating layer 50 on the surface of the transparent substrate 10, wherein the UV transfer printing layer 40 and the coating layer 50 are formed between the color layer 30 and the transparent substrate 10, or the UV transfer printing layer 40 and the coating layer 50 are formed on the surface of the transparent substrate 10 far away from the light-transmitting leather grain layer 20.

Referring to fig. 14, a schematic flow chart of a manufacturing method of a housing assembly according to another embodiment of the present application is substantially the same as that shown in fig. 10, except that the method further includes the following steps:

operation 204: and sequentially forming a UV transfer printing layer and a coating layer on the surface of the transparent substrate far away from the color layer.

Operation 205: and printing cover bottom ink on the coating layer to form a cover bottom layer, wherein the optical transmittance of the cover bottom layer is less than or equal to 1%.

It is understood that the above is an exemplary method for manufacturing the housing assembly 100, and the method for manufacturing the housing assembly 100 in this application is not limited thereto, and may also include a corresponding method for manufacturing any one of the above-mentioned housing assemblies 100, for example, the method for manufacturing the housing assembly 100 further includes a corresponding method for manufacturing at least one of the UV transfer layer 40, the film coating layer 50 and the cover bottom layer 60 in the housing assembly 100, or a corresponding method for manufacturing at least one of the transfer layer 40, the film coating layer 50 and the cover bottom layer 60 and the protective layer 70 in the housing assembly 100, and when the positions of the film layers are different, the order of the manufacturing methods is adjusted accordingly, and is not described herein again and is within the scope of the present application.

In an embodiment of the present application, the method for manufacturing the housing assembly 100 further includes performing high pressure molding. And (3) placing the prepared film layer structure in a high-pressure forming machine for hot bending forming. Optionally, the high pressure forming comprises hot pressing at 130-240 deg.C under 15Bar-100Bar for 0.3min-2 min. The case assembly 100 is manufactured in a 2D shape, a 2.5D shape, or a 3D shape by high pressure molding. In an embodiment, after the high pressure molding, a protective layer may be formed on the surface of the light-transmitting dermatoglyph layer 20, so as to prevent the protective layer from being formed under high pressure, and better ensure the performance of the protective layer, so that the protective layer can better protect the film structure in the housing assembly 100.

In an embodiment of the present application, the method for preparing the housing assembly 100 further includes performing CNC machining. The CNC machining may mill away excess trim to obtain the final desired assembled fit of the housing assembly 100. In one embodiment, a fine engraving machine is used to ensure the precision of the dimensions, for example, the dimension difference should be controlled within ± 0.07mm, so as to obtain a better housing assembly 100.

The present application further provides an electronic device comprising the housing assembly 100 of any of the above embodiments. It is understood that the electronic device may be, but is not limited to, a cell phone, a tablet, a laptop, a watch, MP3, MP4, GPS navigator, digital camera, etc. The following description will be given taking a mobile phone as an example.

Please refer to fig. 15, which is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, the electronic device includes a display screen 200, and a cover plate 300 and a housing assembly 100 disposed on two opposite sides of the display screen 200, the housing assembly 100 includes a transparent substrate 10, a transparent dermatoglyph layer 20 and a color layer 30, the transparent dermatoglyph layer 20 and the color layer 30 are disposed on two opposite sides of the transparent substrate 10, or the transparent dermatoglyph layer 20 and the color layer 30 are disposed on the same side of the transparent substrate 10, and the color layer 30 is disposed between the transparent substrate 10 and the transparent dermatoglyph layer 20, a surface of the transparent dermatoglyph layer 20, which is far away from the transparent substrate 10, has a dermatoglyph structure, and a softness of the transparent dermatoglyph layer 20 is 1mm to 7 mm. It will be appreciated that the housing assembly 100 has oppositely disposed inner and outer surfaces, wherein the inner and outer surfaces are referenced to the use condition of the housing assembly 100. When the housing assembly 100 is applied to an electronic device, the surface facing the inside of the electronic device is an inner surface, and the surface facing the outside of the electronic device is an outer surface, and the surface of the transparent dermatoglyph layer 20 away from the transparent substrate 10 is an outer surface, that is, the transparent substrate 10 is between the display screen 200 and the transparent dermatoglyph layer 20. The shell assembly 100 can endow the electronic device with the touch feeling of dermatoglyph and the soft touch feeling of cortex, enhances the appearance variability, promotes the appearance competitiveness of the electronic device, and enhances the product expressive force.

The foregoing detailed description has provided for the embodiments of the present application, and the principles and embodiments of the present application have been presented herein for purposes of illustration and description only and to facilitate understanding of the methods and their core concepts; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A shell component is characterized by comprising a transparent substrate, a light-transmitting leather grain layer and a color layer, wherein the light-transmitting leather grain layer and the color layer are arranged on two opposite sides of the transparent substrate, or

The light-transmitting leather grain layer and the color layer are arranged on the same side of the transparent substrate, the color layer is arranged between the transparent substrate and the light-transmitting leather grain layer,

the surface of one side of the light-transmitting leather grain layer, which is far away from the transparent substrate, is provided with a leather grain structure, and the softness of the light-transmitting leather grain layer is 1-7 mm.

2. The housing assembly of claim 1, further comprising at least one of a UV transfer layer and a coating layer.

3. The housing assembly of claim 2, wherein when the housing assembly includes the UV transfer layer and the coating layer, the UV transfer layer is disposed between the light transmissive leather layer and the coating layer.

4. The housing assembly of claim 3 wherein said UV transfer layer and said coating layer are disposed on a surface of said color layer on a side remote from said clear grain layer when said clear grain layer and said color layer are disposed on opposite sides of said transparent substrate.

5. The housing assembly of claim 3 wherein when said clear leather layer and said color layer are disposed on the same side of said transparent substrate, said UV transfer layer and said coating layer are disposed between said color layer and said transparent substrate, or said UV transfer layer and said coating layer are disposed on a surface of said transparent substrate on a side remote from said clear leather layer.

6. The housing assembly of claim 3 further comprising a cover substrate layer disposed on a surface of the coating layer distal from the light-transmissive leather layer, the cover substrate layer having an optical transmittance of less than or equal to 1%.

7. The housing assembly of claim 2, wherein the UV transfer layer is textured and the coating layer includes at least one of an optical film layer and a metal film layer.

8. The housing assembly of claim 1, wherein the light transmissive textured layer has an optical transmission of 40% to 88% and a haze of 5% to 60%.

9. The housing assembly of claim 1, wherein the light transmissive dermatome layer has a shore hardness of less than 90A.

10. The housing assembly of claim 1, wherein the light transmissive skin layer comprises at least one of polyurethane, polycarbonate, and polyvinyl chloride.

11. The housing assembly of claim 1, further comprising a protective layer disposed on a side surface of the light-transmissive leather layer away from the transparent substrate, wherein the protective layer has a thickness of 1 μm to 10 μm.

12. A method of making a housing assembly, comprising:

13. The method of claim 12, wherein the forming of the light-transmitting dermatome layer on the surface of the transparent substrate comprises:

providing a release paper with lines;

coating liquid resin on the surface of the release paper, and curing to form the light-transmitting leather grain layer;

peeling the release paper from the light-transmitting leather grain layer, wherein the surface of the light-transmitting leather grain layer is provided with the leather grain structure corresponding to the grains;

and arranging the light-transmitting leather texture layer on the surface of the transparent substrate.

14. The method of claim 12, wherein when the light-transmitting dermatome layer and the color layer are disposed on opposite sides of the transparent substrate, the method further comprises:

and sequentially forming a UV transfer printing layer and a coating layer on the surface of the color layer far away from the light-transmitting leather grain layer.

15. The method of claim 12, wherein when the light-transmitting dermatome layer and the color layer are disposed on the same side of the transparent substrate, the method further comprises:

the surface of the transparent substrate is sequentially formed with a UV transfer printing layer and a coating layer, wherein the UV transfer printing layer and the coating layer are formed between the color layer and the transparent substrate, or the UV transfer printing layer and the coating layer are formed on the surface of the transparent substrate far away from the transparent leather grain layer.

16. The method of claim 14 or 15, further comprising:

and printing cover bottom ink on the coating layer to form a cover bottom layer, wherein the optical transmittance of the cover bottom layer is less than or equal to 1%.

17. The method of claim 12, further comprising:

and forming a protective layer on the surface of the light-transmitting dermatoglyph layer far away from the transparent substrate, wherein the thickness of the protective layer is 1-10 μm.

18. The utility model provides an electronic equipment, its characterized in that includes the display screen, and sets up apron and the casing subassembly of the relative both sides of display screen, the casing subassembly includes transparent basement, light-transmitting leather grain layer and colour layer, light-transmitting leather grain layer with the colour layer sets up the relative both sides of transparent basement, or light-transmitting leather grain layer with the colour layer sets up the homonymy of transparent basement, just the colour layer sets up transparent basement with between the light-transmitting leather grain layer, light-transmitting leather grain layer is kept away from a side surface of transparent basement has the leather grain structure, the compliance on light-transmitting leather grain layer is 1mm-7 mm.