CN110933209A

CN110933209A - Shell, manufacturing method thereof and electronic equipment

Info

Publication number: CN110933209A
Application number: CN201911329234.XA
Authority: CN
Inventors: 邱惊龙; 孙文峰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-03-27

Abstract

The application provides a shell for electronic equipment, which comprises a base body, a protective layer, a coating layer and a light shielding layer which are sequentially stacked; wherein: the film coating layer comprises a color development layer and a refraction layer which are sequentially stacked; the thicknesses of the color development layer and the refraction layer are gradually changed in the same direction; the thickness of the color development layer is gradually reduced, and the thickness of the refraction layer is gradually increased. The application provides a thickness that casing passes through the coating film layer gradually changes for the coating film layer can produce the interference of the light of different effects, can realize the gradual change of two at least colours from this, has improved the expressive force and the competitiveness of product.

Description

Shell, manufacturing method thereof and electronic equipment

Technical Field

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

Background

With the advancement of science and technology and the improvement of quality of life, the demand of people on visual colors is more personalized, and the demand is particularly obvious in the electronic equipment industry. Taking a mobile phone as an example, the back covers of products of most mobile phone manufacturers at present are designed by glass, and most of the mobile phone glass back covers in the market are mainly pure color. The existing process generally comprises the steps of coating a film on a glass plate, and finally, a single color such as black, white or pink is presented on a rear cover of the glass, while the single pure-color rear cover can not meet the requirement of a user on the individuation of the color of the mobile phone.

Disclosure of Invention

The embodiment of the application provides a shell for electronic equipment, and the shell comprises a base body, a protective layer, a coating layer and a light shielding layer which are sequentially stacked; wherein:

the film coating layer comprises a color development layer and a refraction layer which are sequentially stacked;

the thicknesses of the color development layer and the refraction layer are gradually changed in the same direction; the thickness of the color development layer is gradually reduced, and the thickness of the refraction layer is gradually increased.

Another aspect of the embodiments of the present application provides a method for manufacturing a housing, where the method is used to manufacture the housing, and includes the following steps: forming a protective layer on the first surface of the substrate;

forming a coating layer on one surface of the protective layer, which is far away from the substrate;

forming a light shielding layer on one surface of the film coating layer, which is far away from the protective layer; wherein:

the step of forming the coating layer comprises the following steps: forming a color development layer on one surface, far away from the substrate, of the protective layer, forming a refraction layer on one surface, far away from the substrate, of the color development layer, wherein the thicknesses of the color development layer and the refraction layer gradually change in the same direction; the thickness of the color development layer is gradually reduced, and the thickness of the refraction layer is gradually increased.

In addition, an embodiment of the present application further provides an electronic device, where the electronic device includes: display screen, functional device and the above-mentioned body; the display screen cover is arranged on the shell to form an accommodating space; the functional device is placed in the accommodating space.

The shell for the electronic equipment comprises a color development layer and a refraction layer which are sequentially stacked. Wherein, the thickness of the color development layer and the refraction layer gradually changes in the same direction. The color development layer and the refraction layer can generate light interference with different effects in the process of gradually changing the thickness so as to present gradual change of at least two colors, thereby improving the expressive force and the competitive force of the product.

Drawings

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

Fig. 1 is a schematic structural diagram of an electronic device 5 provided in an embodiment of the present application;

FIG. 2 is a schematic structural view of the housing 10 of FIG. 1;

FIG. 3 is a schematic diagram of the structure of the coating 300 of FIG. 2;

FIG. 4 is a partial appearance effect diagram of the casing 10 containing the coating layer 300 of FIG. 3;

FIG. 5 is a schematic view of another structure of the coating 300 of FIG. 3;

FIG. 6 is a partial appearance effect diagram of the casing 10 containing the coating layer 300 of FIG. 5;

FIG. 7 is a schematic view of another structure of the coating 300 of FIG. 3;

FIG. 8 is a partial appearance effect diagram of the casing 10 including the coating layer 300 of FIG. 7;

fig. 9 is another structural schematic diagram of the housing 10;

fig. 10 is a schematic flow chart illustrating a method for manufacturing the housing 10 according to an embodiment of the present disclosure;

fig. 11 is another flow chart of the manufacturing method of the housing 10.

Detailed Description

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

The inventor finds that: some techniques achieve color gradation of the mobile phone rear case by means of ribbon transfer. Before the transfer printing of the color tape, the corresponding gradient color tape needs to be manufactured in advance, and the color tape can be transferred to a PET (Polyethylene terephthalate) film in a heat transfer mode and is attached to a glass cover plate, so that the color finally presented by the rear shell of the mobile phone can be gradually changed. The rear shell film layer manufactured by the process has high roughness and insufficient fineness. And the thickness of the coating layer is generally within 400nm, so that the presented gradual change color brightness and brightness are insufficient.

In order to solve the above problems, embodiments of the present application provide a housing, a manufacturing method thereof, and an electronic device. The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application.

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

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device 5 according to an embodiment of the present disclosure.

As shown in fig. 1, the electronic device 5 provided in the embodiment of the present application may specifically be as follows: the embodiments of the present application take a mobile phone as an example and are described as follows.

The electronic device 5 includes: a housing 10, a display screen 11 and functional components (not shown). The display screen 11 is covered on the housing 10 to form an accommodating space 15, and the functional device is placed in the accommodating space 15 to implement the functional application of the electronic device 5. Specifically, the display 11 may be a full-screen or curved-surface screen, the housing 10 may be a rear cover or a battery cover of the mobile phone, and the functional devices may include, for example: mainboard, camera and battery etc..

Referring to fig. 2, fig. 2 is a schematic structural diagram of the housing 10 in fig. 1.

As shown in fig. 2, the housing 10 includes a base 100, a protective layer 200, a plating layer 300, and a light-shielding layer 400, which are stacked in this order. Wherein the housing 10 can present a gradient of at least two colors on the side facing away from the display screen 11. In the present embodiment, "stacked in order" specifically means that the outer surface of the housing 10 is stacked in order in the direction of the inner surface.

Specifically, the substrate 100 may be a composite board formed by stacking two or more layers of plates, and the specific material of each layer may consider the factors of complementary performance and mutual influence of the specific materials. For example, in the present embodiment, the substrate 100 may be a composite plate formed by laminating PC (polycarbonate) and PMMA (polymethyl methacrylate). Thus, the substrate 100 has the advantages of falling resistance, wear resistance, low cost and good plasticity while not affecting the appearance color. In some embodiments, the substrate 100 may also be a composite sheet composed of a stack of PET and PC boards. The plates can be bonded by UV (Ultraviolet) glue or pressed by a pressing machine.

The protective layer 200 may be a structure for protecting the inner film layer from bursting or being damaged by external factors, and has high hardness and toughness to withstand high-strength impact. The protective layer 200 may include a release layer 210, an OCA layer 220(optical Clear Adhesive), and a PET layer 230, which are sequentially stacked, and have a thickness of 170 to 230 um. For example, in the present embodiment, the thickness of the release layer 210 may be 125um, the thickness of the OCA layer 220 may be 25um, and the thickness of the PET layer 230 may be 50 um. In some embodiments, the thicknesses of the release layer 210, the OCA layer 220, and the PET layer 230 may also not be limited to the specific thickness values, and those skilled in the art may specifically set the thicknesses according to toughness, hardness, and impact resistance actually required by the housing 10, which is not described herein again.

Referring to fig. 3 to 8, fig. 3 is a schematic structural diagram of the film 300 in fig. 2, fig. 4 is a partial appearance effect diagram of the housing 10 including the film 300 in fig. 3, fig. 5 is another structural diagram of the film 300 in fig. 3, fig. 6 is a partial appearance effect diagram of the housing 10 including the film 300 in fig. 5, fig. 7 is another structural diagram of the film 300 in fig. 3, and fig. 8 is a partial appearance effect diagram of the housing 10 including the film 300 in fig. 7. It should be noted that the incident light L in fig. 3, 5 and 7 is only an exemplary light, and the incident light L may be refracted or reflected multiple times after entering the film 300, and the specific light path thereof is not shown in fig. 3, 5 and 7.

As shown in fig. 3 to 8, the coating layer 300 may generate interference of light with different effects under the gradual change of the film thickness, so that the coating layer 300 may exhibit two color gradations. Further, the coating layer 300 may include a color developing layer 310, a refractive layer 320, and an adhesive layer 330. The color developing layer 310 is disposed on a surface of the protection layer 200 away from the substrate 100. The refractive layer 320 is disposed on a surface of the color developing layer 310 away from the substrate 100, and the refractive layer 320 includes a first refractive layer 3201 and a second refractive layer 3202 which are stacked. The adhesive layer 330 is stacked on the color developing layer 310. Further, the thickness of the color developing layer 310 in the first direction X gradually decreases, and the thicknesses of the first and second

refractive layers

3201 and 3202 in the first direction X gradually increase. The first direction X is a direction parallel to the substrate 100. The X direction in the present embodiment may be any direction in the plane of the substrate 100, and only the first direction X is illustrated as an example in the drawings. The thinnest part of the color development layer 310 and the refraction layer 320 is 78-85% of the thickest part. Thus, the variation in thickness of the color-developing layer 310 and the refractive layer 320 in the first direction X can generate interference of light of different effects, so that the color-developing layer 310 and the refractive layer 320 can exhibit gradation between at least two colors. In some embodiments, the thickness variation directions of the color-developing layer 310 and the refractive layer 320 are not limited to the above directions, and those skilled in the art can specifically set the thickness variation directions of the color-developing layer 310 and the refractive layer 320 according to the actual required color of the casing 10 from dark to light, or from light to dark, or from one color to another color. The embodiments of the present application are not described in detail herein.

Specifically, in the present embodiment, the color development layer 310 may be an indium layer for providing a gradual change from light to dark of silver in the process of thickness variation, so as to enrich the color system of the casing 10, and the indium has a good light reflection effect, so as to enhance the color development brightness of the casing 10. The first refractive layer 3201 is a niobium pentoxide layer, the second refractive layer 3202 is a silicon dioxide layer, and niobium pentoxide has characteristics such as a high refractive index and a large optical band gap. The second refractive layer 3202 is a silicon dioxide layer, and silicon dioxide has strong reflectivity to both ultraviolet light and visible light. Therefore, the first refraction layer 3201 and the second refraction layer 3202 are stacked, and interference of light with different effects generated by the refraction layer 320 during the thickness variation process can be realized, so as to present the shade, the brightness and the transition gradual change between different colors. The adhesive layer 330 may be a silicon oxide layer, and the silicon oxide layer has good adhesion, which may improve stability and reliability between the attached film layers.

As shown in fig. 3 to 4, for example, in the present embodiment, the thickest portion of the plating layer 300 has a thickness of 360nm to 440nm, which can exhibit a gradient of three colors of silver, green and blue, and the plating layer 300 includes: two adhesive layers 330, a color developing layer 310, four first refractive layers 3201, and three second refractive layers 3202. The two bonding layers 330 are disposed on the surface of the protection layer 200 away from the substrate 100, and the color development layer 310 is disposed between the two bonding layers 330. The four first refractive layers 3201 and the three second refractive layers 3202 are alternately stacked, and the first refractive layers 3201 are disposed on the surface of the adhesive layer 330 away from the substrate 100. For example, the thicknesses of the two adhesive layers 330 at the thickest positions in the direction away from the substrate 100 are as follows: 2nm and 6 nm. The thickness of the thickest part of the color development layer 310 is 20nm, and the thickness of the thinnest part is 16 nm. The thicknesses of the thickest parts of the four first refraction layers 3201 in the direction away from the substrate 100 are as follows: 68.8nm, 68.5nm, 55.5nm and 49.2 nm. The thickness of the thinnest part is as follows: 55nm, 54.8nm, 44.4nm, 39.4 nm. The thicknesses of the three second refraction layers 3202 at the thickest positions far away from the substrate 100 are as follows: 18.4nm, 54.2nm, 41.9 nm. The thickness of the thinnest part is as follows: 14.7nm, 43.4nm, 33.5 nm. Further, as shown in fig. 3, a position a in fig. 3 is the thickest position of the color development layer 310, when the incident light L enters the color development layer 310, the color of the color development layer 310 at a position a is silver, and the thickness of the color development layer in the first direction X gradually decreases, so that silver color gradation is realized, which corresponds to the color development effect at the dotted circle in fig. 4. In fig. 3, B is the thickest part of the refractive layer 320, when the incident light L enters the refractive layer 320, the color of the refractive layer 320 at B is blue, and the thickness of the refractive layer 320 in the first direction X gradually increases, so as to realize a transition gradual change from green to blue, which corresponds to the color rendering effect at the outer part of the dotted circle in fig. 4. Therefore, the color-developing layer 310 and the refractive layer 320 can generate interference of lights with different effects during the thickness variation process to present the three-color gradual change of silver, green and blue.

As shown in fig. 5 to 6, in some embodiments, the thickest portion of the coating layer 300 has a thickness of 480nm to 535nm, which can exhibit a five-color gradient of silver blue, violet, red and yellow, and the coating layer 300 includes: two adhesive layers 330, a color developing layer 310, three first refractive layers 3201, and two second refractive layers 3202. Wherein, two bonding layers 330 are disposed on the surface of the protection layer 200 away from the substrate 100, and the color development layer 310 is disposed between the two bonding layers 330. Three first refraction layers 3201 and two second refraction layers 3202 are alternately stacked, and the first refraction layers 3201 are disposed on the surface of the bonding layer 330 away from the substrate 100. For example, the two adhesive layers 330 have thicknesses of 2nm and 11nm in order from the thickest part in the direction away from the substrate 100. The thickness of the thickest part of the color development layer 310 is 43nm, and the thickness of the thinnest part is 34.4 nm. The thicknesses of the thickest parts of the three first refractive layers 3201 in the direction away from the substrate 100 are as follows: 103.1nm, 101.7nm, 91.3 nm. The thickness of the thinnest part is as follows: 82.5nm, 81.4nm, 73.1 nm. The thicknesses of the two second refraction layers 3202 at the thickest positions far away from the substrate 100 are as follows: 67.9nm, 96.2 nm. The thickness of the thinnest part is as follows: 54.3nm, 76.9 nm. Further, as shown in fig. 5, the position C in fig. 5 is the thickest position of the color development layer 310, when the incident light L enters the color development layer 310, the color of the color development layer 310 at the position C is silver, and the thickness of the color development layer in the first direction X gradually decreases, so that silver color gradation is realized, which corresponds to the color development effect at the dotted circle in fig. 6. In fig. 5, the position D is the thickest position of the refractive layer 320, when the incident light L enters the refractive layer 320, the color of the refractive layer 320 at the position D is yellow, and the thickness of the refractive layer 320 in the first direction X gradually increases, so as to realize transition gradual change of five colors, i.e., blue, violet, red and yellow, which corresponds to the color rendering effect at the outer part of the dotted circle in fig. 6. Therefore, the color development layer 310 and the refraction layer 320 can generate interference of light with different effects in the process of changing the thickness so as to present the silver blue, purple red and yellow five-color gradual change.

Referring to fig. 7 to 8 in conjunction with fig. 2, in some embodiments, the thickest portion of the film 300 has a thickness of 125nm to 147nm, which can exhibit two gradual changes of silver and black. And the plating layer 300 includes: two adhesive layers 330, a color developing layer 310, a first refractive layer 3201, and a second refractive layer 3202. The two bonding layers 330 are disposed on the surface of the protection layer 200 away from the substrate 100, and the color developing layer 310 is disposed between the two bonding layers 330. The second refraction layer 3202 is disposed on the surface of the bonding layer 330 away from the substrate 100, and the first refraction layer 3201 is disposed on the surface of the second refraction layer 3202 away from the substrate 100. For example, the two adhesive layers 330 have thicknesses of 2nm and 8nm in order from the thickest part in the direction away from the substrate 100. The thickness of the thickest part of the color development layer 310 is 35nm, and the thickness of the thinnest part is 28 nm. The thickness of the thickest part of the first refractive layer 3201 is 61.5nm, and the thickness of the thinnest part is 49.2 nm. The thickness of the thickest part of the second refractive layer 3202 is 38.4nm, and the thickness of the thinnest part is 30.7 nm. Further, as shown in fig. 7, the position E in fig. 7 is the thickest position of the color development layer 310, when the incident light L enters the color development layer 310, the color of the color development layer 310 at the position E is silver, and the thickness of the color development layer in the first direction X gradually decreases, so that silver color gradation is realized, which corresponds to the color development effect at the dotted circle in fig. 8. In fig. 7, the position F is the thickest position of the refractive layer 320, and the first refractive layer 3201 and the second refractive layer 3202 are transparent under the thickness, so that the incident light L can directly irradiate the light-shielding layer 400, and the light-shielding layer 400 reflects the incident light L to form a silver-black double-color gradual change with the color-developing layer 310.

In this embodiment, the lab value range of the silver color of the color-developing layer 310 may be: l: 70-80 parts; a: -3 to-22; b: -12.5 to 14; specifically, the lab value of the silver of the color developing layer 310 may be: 77.34, -13.28, -3.43 or 78.52, -13.85, -0.99 or 76.51, -9.24, -8.02. The visual effect of the silver color can be better in the process of realizing the gradient color by selecting the silver color in the lab value range. In some embodiments, the color that the film coating layer 300 can display is not limited to the color gradient, and a person skilled in the art can set different numbers of film layers and thickness values of the film layers according to the actually required gradient color of the casing 10, which is not described herein any more in this embodiment of the present application.

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature.

The light shielding layer 400 may be used to shield light from passing through the housing 10, so that the housing 10 can cover the functional devices in the electronic device 5. The light-shielding layer 400 may include a first ink layer 410, a gloss oil layer 420, and a second ink layer 430 stacked in sequence, and have a thickness of 28um to 44 um. Wherein, first printing ink layer 410 is used for when refraction layer 320 is the transparence, realizes the two-color gradual change of silver-black of casing 10 with the cooperation of color development layer 310, and its thickness is 9um ~ 13 um. Gloss oil layer 420 is used for improving the water-proof effects of casing 10, keeps apart first printing ink layer 410 and second printing ink layer 430, and gloss oil layer 410 has better mobility simultaneously, can be so that the surfacing of first printing ink layer 410, and the mirror surface effect of reinforcing casing 10, its thickness is 5um ~ 9 um. The quantity of second printing ink layer 430 is two-layer, and it is used for sheltering from light, avoids light to pass casing 10, and its thickness is 7um ~ 11 um. In this embodiment, the first ink layer 410 may be made of a composite of carbon powder and a polyester material, and is used to provide a black substrate for the housing 10. The second ink layer can be formed by combining carbon powder and extinction powder and is used for isolating light.

Referring to fig. 9, fig. 9 is another structural schematic diagram of the housing 10.

As shown in fig. 9, in some embodiments, the housing 10 may also include a textured layer 500. The texture layer 500 is disposed between the protection layer 200 and the coating layer 300, and is used to cooperate with the coating layer 300 to improve the high metal texture of the casing 10, and the thickness of the texture layer can be 5um to 10 um. In this embodiment, the texture layer 500 may be UV glue, and its specific structure may be an array of gradient dots or line stripes, for example. In some embodiments, the texture layer 500 may be a material other than UV glue, and the specific structure of the texture layer 500 may not be limited to the array of gradient dots or line stripes, and those skilled in the art can select the texture layer according to the actually required metallic luster effect of the housing 10. The embodiments of the present application are not described in detail herein.

The casing 10 provided in the embodiment of the present application includes a color-developing layer 310 and a refractive layer 320, which are sequentially stacked. The thickness of the color-developing layer 310 in the first direction X gradually decreases, and the thickness of the refractive layer 320 in the first direction X gradually increases. Therefore, in the process of gradually changing the thickness of the color development layer 310 and the refraction layer 320, the interference of light with different effects can be generated to present the gradual change of at least two colors, and the high film thickness can also realize the display of high-concentration colors, thereby improving the expressive force and the competitiveness of products. The color development layer 310 is an indium layer, so that a silver color gradient effect is realized, and the color system of the shell 10 is increased. Meanwhile, the indium has better light reflectivity, so that the color development brightness of the shell 10 is improved.

All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Referring to fig. 10, fig. 10 is a schematic flow chart of a manufacturing method of the housing 10 according to an embodiment of the present disclosure, and fig. 11 is another schematic flow chart of the manufacturing method of the housing 10.

As shown in fig. 10, the manufacturing method provided in the embodiment of the present application includes the following steps:

s10: a protective layer 200 is formed on the first surface of the substrate 100.

A release layer 210, an OCA layer 220 and a PET layer 230 are sequentially formed on the first surface of the substrate 100 to form a complete protection layer 200. Specifically, a coater may be used for applying the adhesive coating to achieve the adhesion of the release layer 210, the OCA layer 220, and the PET layer film.

S30: and forming a coating layer on the surface of the protective layer 200 far away from the substrate 100.

The color-developing layer 310 is formed on the surface of the protective layer 200 away from the substrate 100, and the refractive layer 320 is formed on the surface of the color-developing layer 310 away from the substrate 100. The thickness of the color-developing layer 310 in the first direction X gradually decreases, and the thickness of the refractive layer 320 in the first direction X gradually increases. Therefore, the color-developing layer 310 and the refractive layer 320 can generate interference of lights with different effects to present gradual change of at least two colors in the process of gradually changing the thickness. Further, when the plated film layer 300 is formed, the substrate 100 to which the protective layer 200 is attached may be placed in a mold in an inclined manner at an inclined angle of 30 ° to 60 ° to perform an inclined film plating, thereby realizing an inclined gradient of the housing 10. For example, in the present embodiment, the long side of the substrate 100 is placed diagonally based on the long side of the mold, and the placement angle is 42 °. In this embodiment, the forming of the film coating layer 300 may be performed by vacuum sputtering, which belongs to the prior art and is not described herein. In some embodiments, the angle at which the substrate 100 is placed in the mold may not be limited to the above-described angle. For example, the long side of the substrate 100 may be parallel to or perpendicular to the long side of the mold, and may be coated up and down or left and right to realize the gradual change of the color from top to bottom or from left to right. The embodiments of the present application do not limit this.

S40: the light-shielding layer 400 is formed on the surface of the plated film layer 300 away from the protection layer 200.

A first ink layer 410, a gloss oil layer 410 and a second ink layer 430 are sequentially formed on the surface of the film coating layer 200 away from the protective layer 200 to form a complete light shielding layer 200. Specifically, the first ink layer 410, the gloss oil layer 420 and the third ink layer 430 may be formed by silk-screen printing, so as to achieve the light-shielding effect of the light-shielding layer 200.

As shown in fig. 11, in some embodiments, before forming the plating layer 300, the method further includes:

s20: the textured layer 500 is formed on the side of the protective layer 200 away from the substrate 100.

The texture layer 500 can be PR texture or machining texture, and is matched with the coating layer 300, so that the metal texture of the shell 10 is better, and the product expressive force is improved. Specifically, the texture layer 500 may be UV glue, and is formed on the side of the protective layer 200 away from the substrate 100 by means of stamping.

In the method for manufacturing the casing 10 according to the embodiment of the present application, the color development layer 310 is formed on the surface of the protective layer 200 away from the substrate 100, and the refraction layer 320 is formed on the surface of the color development layer 310 away from the substrate 100. And the thickness of the color-developing layer 310 in the first direction X gradually decreases, and the thickness of the refractive layer 320 in the first direction X gradually increases. Therefore, the color-developing layer 310 and the refractive layer 320 can generate interference of lights with different effects to present gradual change of at least two colors in the process of gradually changing the thickness. Further, by placing the base body 100 obliquely at 30 ° to 60 °, the oblique color gradation of the housing 10 can be realized. Meanwhile, the texture layer 500 is arranged between the protective layer 200 and the coating layer 300, so that the metal texture of the shell 10 is better, and the expressive force and the competitive force of the product are improved.

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

Claims

1. A shell for electronic equipment is characterized by comprising a base body, a protective layer, a coating layer and a light shielding layer which are sequentially stacked; wherein:

2. The housing of claim 1, wherein the refractive layer comprises a first refractive layer and a second refractive layer disposed in a stack;

the thickness variation trends of the first refraction layer and the second refraction layer are the same.

3. The housing of claim 2, wherein the coating further comprises: an adhesive layer;

the bonding layer and the color development layer are arranged in a laminated mode.

4. The casing of claim 3, wherein the color-developing layer is an indium layer, the first refractive layer is niobium pentoxide, the second refractive layer is a silicon dioxide layer, and the bonding layer is a silicon oxide layer.

5. The housing of claim 4 wherein the coating has a thickness of 360nm to 440nm and exhibits a trichromatic gradient of silver, green and blue.

6. The housing of claim 5, wherein the coating comprises two of the adhesive layer, the color developing layer, four of the first refractive layer, and three of the second refractive layer;

the two bonding layers are arranged on one surface, far away from the base body, of the protective layer, and the color development layer is arranged between the two bonding layers;

the four layers first refraction layer and three-layer the second refraction layer is crisscross range upon range of, just first refraction layer set up in the adhesive linkage is kept away from the base member one side.

7. The shell of claim 4, wherein the coating has a thickness of 480nm to 535nm and exhibits a five-color gradient of silver, blue, violet, red and yellow.

8. The housing of claim 7, wherein the coating comprises two of the adhesive layer, the color developing layer, three of the first refractive layer, and two of the second refractive layer;

the three-layer first refraction layer and two-layer the second refraction layer is crisscross range upon range of, just first refraction layer set up in the adhesive linkage is kept away from the base member one side.

9. The housing of claim 4, wherein the coating has a thickness of 125nm to 147nm and is a silver-black two-color gradient.

10. The housing of claim 9, wherein the coating layer comprises two of the adhesive layer, the color developing layer, the first refractive layer, and the second refractive layer;

the second refraction layer set up in the adhesive linkage is kept away from the base member one side, first refraction layer set up in the second refraction layer is kept away from the base member one side.

11. The housing of claim 1, further comprising a textured layer;

the texture layer is arranged between the coating layer and the protective layer.

12. The shell according to claim 1, wherein the light shielding layer includes a first ink layer, a gloss oil layer, and a second ink layer stacked in sequence, and the number of the second ink layers is two.

13. The shell of claim 1, wherein the protective layer comprises a release layer, an OCA layer and a PET layer which are sequentially stacked.

14. A method of manufacturing a housing, the method being for manufacturing a housing according to any one of claims 1 to 13, wherein: the method comprises the following steps:

forming a protective layer on the first surface of the substrate;

15. The method of claim 14, wherein the step of forming a coating on the surface of the protective layer away from the substrate further comprises:

and placing the long edge of the substrate in an inclined manner based on the long edge of the mold, wherein the inclined angle is 30-60 degrees.

16. The method of claim 14, wherein the step of forming a coating on the side of the protective layer away from the substrate further comprises:

and forming a texture layer on the surface of the protective layer far away from the substrate.

17. An electronic device, characterized in that the electronic device comprises: a display screen and the housing of any one of claims 1-13;

the display screen cover is arranged on the shell to form an accommodating space;

the accommodating space is used for accommodating functional devices required by the electronic equipment.