CN111163194A - Decorative film and manufacturing method thereof, back cover and mobile terminal - Google Patents
Decorative film and manufacturing method thereof, back cover and mobile terminal Download PDFInfo
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- CN111163194A CN111163194A CN201811325906.5A CN201811325906A CN111163194A CN 111163194 A CN111163194 A CN 111163194A CN 201811325906 A CN201811325906 A CN 201811325906A CN 111163194 A CN111163194 A CN 111163194A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0279—Improving the user comfort or ergonomics
- H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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Abstract
本发明涉及一种装饰膜及其制作方法、后盖及移动终端。该装饰膜，包括：透光基底；装饰层，设于透光基底的表面，装饰层包括透光区与非透光区；其中，非透光区的面积与透光区的面积的比值渐变。将上述装饰膜应用于移动终端的透光后盖时，非透光区可以遮蔽经透光后盖可视化的移动终端的元器件，而透光区可以可视化经透光后盖可视化的移动终端的元器件，从而既能彰显移动终端的科技感和艺术感，又能丰富移动终端的后盖的视觉效果。而且非透光区的面积与透光区的面积的比值渐变，能进一步丰富移动终端的后盖的视觉效果。
The present invention relates to a decorative film and a manufacturing method thereof, a back cover and a mobile terminal. The decorative film includes: a light-transmitting substrate; a decorative layer, disposed on the surface of the light-transmitting substrate, the decorative layer includes a light-transmitting area and a non-light-transmitting area; wherein the ratio of the area of the non-light-transmitting area to the area of the light-transmitting area is gradually . When the above-mentioned decorative film is applied to the light-transmitting back cover of the mobile terminal, the non-light-transmitting area can shield the components of the mobile terminal visualized by the light-transmitting back cover, while the light-transmitting area can visualize the components of the mobile terminal visualized by the light-transmitting back cover. Therefore, it can not only show the sense of technology and art of the mobile terminal, but also enrich the visual effect of the back cover of the mobile terminal. Moreover, the ratio of the area of the non-light-transmitting area to the area of the light-transmitting area is gradually changed, which can further enrich the visual effect of the back cover of the mobile terminal.
Description
Technical Field
The invention relates to a decorative film technology, in particular to a decorative film and a manufacturing method thereof, a rear cover and a mobile terminal.
Background
Along with mobile terminal rapid development such as smart mobile phone, panel computer, mobile terminal's back lid also develops to the lid behind the printing opacity by the lid behind the light-tight gradually, and the lid makes mobile terminal's electronic components visual behind the printing opacity, has very strong science and technology and feels and artistic, improvement mobile terminal's that moreover can be great discernment degree. However, the rear cover with pure light transmission (whole surface light transmission) has a single visual effect, and cannot meet the requirements of consumers.
Disclosure of Invention
Therefore, it is necessary to provide a decorative film, a method for manufacturing the same, a rear cover and a mobile terminal, aiming at the problem that the visual effect of a purely light-transmitting rear cover is single.
A decorative film, comprising:
a light-transmissive substrate; and
the decorative layer is arranged on the surface of the light-transmitting substrate and comprises a light-transmitting area and a non-light-transmitting area;
wherein, the ratio of the area of the non-light-transmitting area to the area of the light-transmitting area is gradually changed.
When being applied to mobile terminal's printing opacity hou gai with above-mentioned decorating film, the non-printing opacity district can shield the visual mobile terminal's of lid components and parts behind the printing opacity, and the printing opacity district can be visual covers the visual mobile terminal's of lid components and parts behind the printing opacity to can show mobile terminal's science and technology sense and artistic sense, can enrich the visual effect of mobile terminal's back lid again. And the ratio of the area of the non-light-transmitting area to the area of the light-transmitting area is gradually changed, so that the visual effect of the rear cover of the mobile terminal can be further enriched.
In one embodiment, the decoration layer includes a plurality of non-transparent blocks, the non-transparent blocks are arranged at intervals, and an area of the decoration layer corresponding to the non-transparent blocks is the non-transparent area. Therefore, the decorative layer with the non-light-transmitting area and the light-transmitting area is convenient to form.
In one embodiment, the non-light-transmitting blocks are arranged in an array, and the area of each non-light-transmitting block gradually increases or gradually decreases in the gradual change direction. Therefore, the visual effect of the rear cover of the mobile terminal is better.
In one embodiment, the areas of the non-light-transmitting blocks are the same, and the density of the non-light-transmitting blocks gradually increases or gradually decreases in the gradual change direction. Thus, the decorative film is convenient to manufacture.
In one embodiment, the decoration layer is provided with a plurality of through holes, the through holes are arranged at intervals, and the area of the decoration layer corresponding to the through holes is the light-transmitting area. Therefore, the decorative layer with the non-light-transmitting area and the light-transmitting area is convenient to form.
In one embodiment, the through holes are arranged in an array, and the area of the through holes gradually increases or gradually decreases in the gradual change direction. Therefore, the visual effect of the rear cover of the mobile terminal is better.
In one embodiment, the areas of the through holes are the same, and the density of the through holes gradually increases or gradually decreases in the gradual change direction. Thus, the decorative film is convenient to manufacture.
In one embodiment, the decorative layer is a glare layer. Thus, the rear cover of the mobile terminal can have a dazzling effect.
In one embodiment, the decoration film includes a transparent portion, a transition portion and a non-transparent portion connected to each other, and a ratio of an area of the non-transparent region of the transparent portion to an area of the transparent region, a ratio of an area of the non-transparent region of the transition portion to an area of the transparent region, and a ratio of an area of the non-transparent region of the non-transparent portion to an area of the transparent region are sequentially increased, where the ratio of the area of the non-transparent region of the transparent portion to the area of the transparent region is 0-1, the area of the transparent region of the non-transparent portion is 0, or the area of the transparent region of the non-transparent portion is greater than 0, and the ratio of the area of the non-transparent region of the non-transparent portion to the area of the transparent region is greater than 100.
Thereby when being applied to mobile terminal's printing opacity back cover with above-mentioned decorating film, the partial components and parts of the visual mobile terminal of lid behind the printing opacity can be roughly shielded completely to nontransparent portion, and the partial components and parts of the visual mobile terminal of lid behind the printing opacity can roughly be visualized completely to transparent portion, and transition portion can make the partial components and parts of the visual mobile terminal of lid behind the printing opacity be partly if hidden and present, and the transparency of transparent portion, transition portion and nontransparent portion is inequality, has gradual change effect, can enrich the visual effect of mobile terminal's back cover.
A rear cover, comprising:
a transparent cover body;
the above-mentioned decorative film; and
and the transparent bonding layer is arranged between the decorative film and the transparent cover body.
When being applied to mobile terminal with above-mentioned back lid, the visual mobile terminal's of lid components and parts behind the printing opacity can be shielded in the non-printing opacity district, and the visual mobile terminal's of lid components and parts behind the printing opacity can be visualized in the printing opacity district to can show mobile terminal's science and technology and feel and artistic, can enrich mobile terminal's back lid visual effect again. And the ratio of the area of the non-light-transmitting area to the area of the light-transmitting area is gradually changed, so that the visual effect of the rear cover of the mobile terminal can be further enriched.
In one embodiment, the surface of the light-transmitting substrate far away from the non-light-transmitting block is connected with the transparent cover body through the transparent bonding layer; the rear cover further comprises a light-transmitting protective layer, and the light-transmitting protective layer covers the surface, provided with the non-light-transmitting blocks, of the light-transmitting substrate. The light-transmitting protective layer can prevent the decorative layer from being worn and falling off, so that the decorative film has longer service life.
A mobile terminal comprises the rear cover.
A manufacturing method of a decorative film comprises the following steps:
providing a light-transmitting substrate; and
and forming a decorative layer on the surface of the light-transmitting substrate in an exposure and development mode or a laser mode, wherein the decorative layer comprises a light-transmitting area and a non-light-transmitting area, and the ratio of the area of the non-light-transmitting area to the area of the light-transmitting area is gradually changed.
Drawings
FIG. 1 is a cross-sectional view of a decoration film according to an embodiment of the present invention;
FIG. 2 is a schematic top view of the decorative film shown in FIG. 1;
FIG. 3 is a schematic top view of a decoration film according to another embodiment of the present invention;
FIG. 4 is a schematic top view of a decoration film according to another embodiment of the present invention;
FIG. 5 is a schematic top view of a decoration film according to another embodiment of the present invention;
FIG. 6 is a cross-sectional view of a rear cover according to an embodiment of the present invention;
fig. 7 is a flowchart of a manufacturing method of a decoration film according to an embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and fig. 2, a decoration film 10 according to an embodiment of the present invention includes a transparent substrate 100 and a decoration layer 200, wherein the decoration layer 200 is disposed on a surface of the transparent substrate 100. Decorative layer 200 includes a light transmissive region 202 and an opaque region 204, with the ratio of the area of opaque region 204 to the area of light transmissive region 202 being graded.
When being applied to the printing opacity back cover of mobile terminal with above-mentioned decorating film 10, the non-printing opacity district 204 can shield the visual mobile terminal's of lid components and parts behind the printing opacity, and printing opacity district 202 can be visual the visual mobile terminal's of lid components and parts behind the printing opacity to can show mobile terminal's science and technology sense and artistic sense, can enrich mobile terminal's back cover visual effect again. And the ratio of the area of the non-light-transmitting area 204 to the area of the light-transmitting area 202 is gradually changed, so that the visual effect of the rear cover of the mobile terminal can be further enriched.
The gradual change of the ratio of the area of the non-light-transmitting region 204 to the area of the light-transmitting region 202 means that, in a certain direction (gradual change direction), the ratio of the area of the non-light-transmitting region 204 to the area of the light-transmitting region 202 gradually increases or gradually decreases, or the ratio of the area of the non-light-transmitting region 204 to the area of the light-transmitting region 202 alternately changes between gradual increase and gradual decrease, for example, the ratio of the area of the non-light-transmitting region 204 to the area of the light-transmitting region 202 gradually increases after gradually increases.
As shown in fig. 2, in some embodiments, the decoration layer 200 includes a plurality of non-light-transmitting blocks 210, the non-light-transmitting blocks 210 are arranged at intervals, the non-light-transmitting area 204 is an area of the decoration layer 200 corresponding to the non-light-transmitting blocks 210, and the light-transmitting area 202 is another area. In some embodiments, the non-transparent blocks 210 are arranged in an array, and the area of the non-transparent blocks 210 gradually increases in the gradient direction 12.
In the embodiment shown in fig. 2, if the density of the non-transparent blocks 210 is unchanged and the area of the non-transparent blocks 210 is gradually changed in terms of the ratio of the number of the non-transparent blocks 210 to the unit area of the transparent substrate 100, the visual effect of the rear cover of the mobile terminal is better. In other embodiments, the areas of the plurality of non-light-transmitting blocks 210 are the same, and the density of the non-light-transmitting blocks 210 gradually increases or gradually decreases in the gradient direction. Thus, the non-light-transmitting block 210 is convenient to manufacture.
As shown in fig. 3 and 4, in some embodiments, the decoration layer 200 is provided with a plurality of through holes 220, the through holes 220 are arranged at intervals, the area of the decoration layer 200 corresponding to the through holes 220 is the light-transmitting area 202, and the other areas are the non-light-transmitting areas 204. In some embodiments, the plurality of through holes 202 are arranged in an array, and the area of the through holes 202 gradually increases or gradually decreases in the gradual direction. It should be noted that, in the embodiment shown in fig. 3 and 4, there are a plurality of gradation directions, the arrow 14 shown in fig. 3 and 4 can rotate 360 °, and the arrow 14 stopped at any position is a gradation direction.
In the embodiments shown in fig. 3 and 4, if the ratio of the number of the through holes 202 to the unit area of the transparent substrate 100 is considered, the density of the through holes 202 is not changed, and the area of the through holes 202 is gradually changed, so that the rear cover of the mobile terminal has a better visual effect. In other embodiments, the area of the plurality of through holes 202 is the same, and the density of the through holes 202 gradually increases or gradually decreases in the gradual direction. Thus, the fabrication of the non-via 202 is facilitated.
In some embodiments, the decoration layer 200 is a glare layer, that is, the material of the decoration layer 200 can exhibit glare under the irradiation of light, so that the rear cover of the mobile terminal has a glare effect.
In some embodiments, by controlling the ratio of the area of the non-light-transmitting area 204 to the area of the light-transmitting area 202, the whole decoration film 10 can be in a transition state, that is, the whole decoration film 10 is in a translucent state, so that all components of the mobile terminal visualized by the light-transmitting rear cover can be hidden and hidden by the decoration film 10.
As shown in fig. 2, in some embodiments, the decoration film 10 can include a transparent portion 10a, a transition portion 10b and a non-transparent portion 10c by controlling the ratio of the area of the non-transparent region 204 to the area of the transparent region 202. Therefore, when the decorative film 10 is applied to the light-transmitting rear cover of the mobile terminal, the non-transparent part 10c can almost completely shield part of components of the mobile terminal which is visualized by the light-transmitting rear cover, the transparent part 10a can almost completely visualize part of components of the mobile terminal which is visualized by the light-transmitting rear cover, the transition part 10b can enable part of components of the mobile terminal which is visualized by the light-transmitting rear cover to be hidden and appearing, the transparencies of the transparent part 10a, the transition part 10b and the non-transparent part 10c are different, the decorative film has a gradual change effect, and the visual effect of the rear cover of the mobile terminal can be enriched.
In application, the transparent portion 10a can make the circuit and chip more capable of showing the technological sense and artistic sense visible, and the non-transparent portion 10c can completely shield the battery with relatively small effect on improving the technological sense, artistic sense and identification degree. It can be understood that when the components of the mobile terminal are visualized, in order to obtain a better visual effect, the components to be visualized need to be beautified. By providing the decorative film 10 having the transparent portion 10a, the transition portion 10b, and the opaque portion 10c, only the components that need to be visualized can be selectively beautified, and the components that do not need to be beautified can be shielded by the opaque portion 10c, thereby reducing the production cost.
It should be noted that the non-transparent portion 10c is not absolutely opaque, but rather, the non-transparent portion 10c may function to shield internal elements under passing conditions, for example, when the transparency of the non-transparent portion 10c is less than 30%, the non-transparent portion 10c has a better shielding effect, in this case, the area of the transparent region 202 may be zero, or the area of the transparent region 202 is not zero, and the ratio of the area of the non-transparent region 204 to the area of the transparent region 202 is greater than one hundred. The transparent portion 10a is not absolutely transparent, but generally functions to visualize internal components, for example, when the transparency of the transparent portion 10a is greater than 70%, the transparent portion 10a has a better visualization effect, and in this case, the ratio of the area of the non-transparent region 204 to the area of the transparent region 202 is zero to one. As shown in fig. 2, the light-transmitting substrate 100 includes a first portion 102, a second portion 104, and a third portion 106, which are connected in sequence, wherein two dotted lines in fig. 2 are a boundary line between the first portion 102 and the second portion 104 and a decomposition line between the second portion 104 and the third portion 106, a ratio of an area of the non-light-transmitting region 204 of the first portion 102 to an area of the light-transmitting region 202, a ratio of an area of the non-light-transmitting region 204 of the second portion 104 to an area of the light-transmitting region 202, and a ratio of an area of the non-light-transmitting region 204 of the third portion 106 to an area of the light-transmitting region 202 are increased in sequence, the first portion 102 corresponds to the transparent portion 10a of the decoration film 10, the second portion 104 corresponds to the transition portion 10b of the decoration film 10, and the third portion 106 corresponds to the non-transparent portion 10c of the.
As shown in fig. 2, in some embodiments, in the directions of the first portion 102, the second portion 104, and the third portion 106, the ratio of the area of the non-transmissive region 204 of the first portion 102 to the area of the transmissive region 202 gradually increases, the ratio of the area of the non-transmissive region 204 of the second portion 104 to the area of the transmissive region 202 gradually increases, and the ratio of the area of the non-transmissive region 204 of the third portion 106 to the area of the transmissive region 202 remains unchanged. The transparency of the first portion 102 and the second portion 104 has a gradual change effect, so that the visual effect of the rear cover of the mobile terminal is better, and the transparency of the third portion 106 is kept unchanged, so that the process is easier to form.
As shown in fig. 3, in some embodiments, in the directions of the first portion 102, the second portion 104, and the third portion 106, the ratio of the area of the non-transmissive region 204 of the second portion 104 to the area of the transmissive region 202 gradually increases, the ratio of the area of the non-transmissive region 204 of the first portion 102 to the area of the transmissive region 202 remains unchanged, and the ratio of the area of the non-transmissive region 204 of the third portion 106 to the area of the transmissive region 202 remains unchanged. The transparency of the second portion 104 has a gradual change effect, so that the visual effect of the rear cover of the mobile terminal is better, while the transparency of the first portion 102 and the third portion 106 remains unchanged, which is easier to process.
As shown in fig. 4, in some embodiments, in the directions of the first portion 102, the second portion 104, and the third portion 106, the ratio of the area of the non-transmissive region 204 of the first portion 102 to the area of the transmissive region 202 is constant, the ratio of the area of the non-transmissive region 204 of the second portion 104 to the area of the transmissive region 202 is gradually increased, and the ratio of the area of the non-transmissive region 204 of the third portion 106 to the area of the transmissive region 202 is gradually increased. The transparency of the second portion 104 and the third portion 106 has a gradual change effect, so that the visual effect of the rear cover of the mobile terminal is better, while the transparency of the first portion 102 remains unchanged, which is easier to process.
In some embodiments, the area of the opaque region 204 of the transparent portion 10a is greater than zero and the area of the transparent region 202 of the opaque portion 10c is greater than zero. So that the transparent part 10a and the non-transparent part 10c are relatively close to the transition part 10b, and abrupt changes are avoided, thereby enabling the whole decoration film 10 to have better visual effect. In other embodiments, as shown in FIG. 5, the area of the opaque region 204 of the transparent portion 10a may be equal to zero, and the area of the transparent region 202 of the opaque portion 10c may be equal to zero.
In some embodiments, the light-transmitting substrate 100 is an insulating substrate and the decorative layer 200 is an insulating decorative layer. Therefore, the performance of the antenna of the mobile terminal on the rear cover can be prevented from being affected due to the electrical conductivity of the transparent substrate 100 and the decoration layer 200, and signal interference can be avoided.
In some embodiments, the light transmittance of the light transmissive substrate 100 is greater than 85%, and the light transmissive substrate 100 may be a plastic substrate, such as a PET substrate. The light transmittance of the decoration layer 200 is less than 5%, and the decoration layer 200 may be an insulating photoresist layer of various colors.
As shown in fig. 1, in some embodiments, the decoration film 10 further includes a light-transmissive protection layer 300, the light-transmissive protection layer 300 covering the surface of the light-transmissive substrate 100 having the decoration layer 200. The light-transmitting protective layer 300 can prevent the decorative layer 200 from being worn and falling off, so that the decorative film 10 has a long service life.
As shown in fig. 1, in some embodiments, the decoration film 10 further includes a transparent adhesive layer 400 and a release film 500, the transparent adhesive layer 400 covers the surface of the transparent substrate 100 away from the decoration layer 200, and the release film 500 covers the surface of the transparent adhesive layer 400 away from the transparent substrate 100. When the decoration film 10 is needed, the release film 500 is removed to attach the decoration film 10 to the rear cover of the mobile terminal.
As shown in fig. 6, the rear cover 40 according to an embodiment of the present invention includes a decoration film 10, a transparent cover 20, and a transparent adhesive layer 30 connecting the decoration film 10 and the transparent cover 20. The rear cover 40 has a decorative effect by adopting a bonding mode, and the transparent cover body 20 has a decorative effect compared with the transparent cover body 20 directly subjected to chemical treatment, so that the realization is more convenient.
When the protective layer 300 is omitted from the decoration film 10, the transparent adhesive layer 30 connects the transparent cover 20 and the surface of the decoration film 10 having the decoration layer 200, so that the decoration layer 200 is located between the transparent substrate 100 and the transparent cover 20, and at this time, the transparent substrate 100 can protect the decoration layer 200. When the transparent adhesive layer 400 and the release film 500 are omitted from the decorative film 10, the transparent adhesive layer 30 can be formed by dispensing the adhesive on the transparent cover 20 or the decorative film 10 during the assembly of the rear cover 40 and curing the adhesive.
As shown in fig. 7, a method for manufacturing a decoration film according to an embodiment of the present invention includes the following steps:
step S710, providing a transparent substrate.
Step S720, forming a decorative layer on the surface of the light-transmitting substrate in an exposure and development mode or a laser mode, wherein the decorative layer comprises a light-transmitting area and a non-light-transmitting area, and the ratio of the area of the non-light-transmitting area to the area of the light-transmitting area is gradually changed.
Step S730, a protective layer is formed on the surface of the transparent substrate having the decoration layer to cover the surface.
Step S740, forming a transparent adhesive layer on the surface of the transparent substrate away from the decoration layer.
In some embodiments, the decorative layer is a non-light transmissive light blocking layer. In step S720, a non-transparent photoresist layer is formed on the surface of the transparent substrate by coating, and then a decoration layer including a transparent region and a non-transparent region is formed by exposing, developing and baking.
Wherein, before exposure, a mask plate is provided, the mask plate is provided with a plurality of light holes, and the light holes correspond to the light-transmitting area or the non-light-transmitting area of the decorative layer. When the photoresist layer is a negative photoresist, the part irradiated by light (the area corresponding to the light hole) is retained in the subsequent development process during the exposure process, i.e. at this time, the light hole of the mask corresponds to the non-light-transmitting area of the decoration layer, and the decoration layer includes a plurality of non-light-transmitting blocks 210. When the photoresist layer is a positive photoresist, in the exposure process, the part irradiated by light (the area corresponding to the light hole) is removed in the subsequent development process, and the part not irradiated by light is remained, i.e. at this time, the light hole of the mask corresponds to the light-transmitting area of the decorative layer, and the decorative layer is provided with a plurality of through holes.
In some embodiments, the non-transparent layer is a non-transparent ink layer. In step S720, a non-transparent ink layer is formed on the surface of the transparent substrate by coating, and a non-transparent block is formed by laser.
In some embodiments, the protective layer is a light-transmissive optical glue layer. In step S730, a light-transmissive optical adhesive layer is formed on the surface of the light-transmissive substrate having the decoration layer by coating, and the light-transmissive optical adhesive layer is cured by exposure.
In some embodiments, the transparent adhesive layer is a light transmissive optical glue layer. In step S740, a transparent adhesive layer is formed on the surface of the light-transmitting substrate away from the decorative layer by coating.
In some embodiments, the size of the transparent substrate matches the size of the decorative films, and after step S730 or step S740 is completed, the decorative films are obtained by laser.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
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| CN201811325906.5A CN111163194A (en) | 2018-11-08 | 2018-11-08 | Decorative film and manufacturing method thereof, back cover and mobile terminal |
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| CN201811325906.5A CN111163194A (en) | 2018-11-08 | 2018-11-08 | Decorative film and manufacturing method thereof, back cover and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115037815A (en) * | 2021-03-03 | 2022-09-09 | Oppo广东移动通信有限公司 | Shell, preparation method thereof and electronic equipment |
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