CN108574748A - Diaphragm preparation method, diaphragm and shell - Google Patents
Diaphragm preparation method, diaphragm and shell Download PDFInfo
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- CN108574748A CN108574748A CN201810232659.8A CN201810232659A CN108574748A CN 108574748 A CN108574748 A CN 108574748A CN 201810232659 A CN201810232659 A CN 201810232659A CN 108574748 A CN108574748 A CN 108574748A
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- sunk structure
- transparent base
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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
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/14—Printing or colouring
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
- C23C14/083—Oxides of refractory metals or yttrium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/10—Glass or silica
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Signal Processing (AREA)
- Toys (AREA)
Abstract
The invention discloses a kind of diaphragm preparation method, diaphragm and shell, the method includes：The transparent base that side is machined with miniature sunk structure is provided, size of the miniature sunk structure on preset direction is less than pre-set dimension, and the interval between two neighboring miniature sunk structure is less than the pre-set dimension, the preset direction is parallel with the surface of the transparent base；The ink of pre-set color is filled in the miniature sunk structure to the transparent base, the ink layer of pre-set color is formed.Rather than directly form the ink layer of pre-set color over the transparent substrate by way of printing or silk-screen printing as the prior art.Therefore, the higher diaphragm of color exquisiteness degree can be prepared, more good visual experience is brought to user.
Description
Technical field
The present invention relates to a kind of field of terminal more particularly to diaphragm preparation method, diaphragm and shells.
Background technology
In the 5th generation (5th-Generation, 5G) mobile communication system, since the wavelength of signal is shorter so that mobile phone
Equal mobile terminals are difficult to continue to use metal shell, especially metal back cover (or battery cover), otherwise can be because of the interference of metal
And shielding action, cause communication quality to decline.Instead the shell made of glass or composite material.
In order to make glass or composite material casing that there is the visual effect as metal shell, it will usually in glass or again
One layer of diaphragm for being coated with reflective coating and the ink layer with pre-set color is pasted on shell base material made of condensation material.
Currently, the ink of pre-set color is prepared on the transparent base of diaphragm frequently with the mode of printing or silk-screen printing
Layer, to obtain the diaphragm with preset color.But the color exquisiteness degree of diaphragm that silk-screen printing obtains is not high, there are site,
Influence visual effect.
Invention content
The embodiment of the present invention provides a kind of diaphragm preparation method, diaphragm and shell, is prepared with to solve existing method
The color exquisiteness degree of diaphragm is not high, the undesirable problem of visual effect.
In order to solve the above-mentioned technical problem, the invention is realized in this way：
In a first aspect, a kind of diaphragm preparation method is provided, including：
The transparent base that side is machined with miniature sunk structure, ruler of the miniature sunk structure on preset direction are provided
It is very little to be less than pre-set dimension, and the interval between two neighboring miniature sunk structure is less than the pre-set dimension, the preset direction
It is parallel with the surface of the transparent base；
The ink of pre-set color is filled in the miniature sunk structure to the transparent base, the oil of pre-set color is formed
Layer of ink.
Second aspect provides a kind of diaphragm, including：The transparent base being stacked and the ink with pre-set color
Layer, wherein
The side of the transparent base is machined with miniature sunk structure, and the ink layer is filled in the miniature sunk structure
It is interior；Size of the miniature sunk structure on preset direction is less than pre-set dimension, and between two neighboring miniature sunk structure
Interval be less than the pre-set dimension；Wherein, the preset direction is parallel with the surface of the transparent base.
The third aspect provides a kind of shell, including：Shell base material and be pasted onto on the shell base material such as second party
Diaphragm described in face.
In at least one embodiment of the present invention, the transparent base for being machined with miniature sunk structure by providing side,
Size of the miniature sunk structure on preset direction be less than pre-set dimension, and between two neighboring miniature sunk structure between
Every less than the pre-set dimension, the preset direction is parallel with the surface of the transparent base；The ink of pre-set color is filled
In miniature sunk structure on to the transparent base, the ink layer of pre-set color is formed.Rather than it is straight as the prior art
The mode for connecting printing or silk-screen printing forms the ink layer of pre-set color over the transparent substrate.Therefore, it can be prepared
The higher diaphragm of color exquisiteness degree brings more good visual experience to user.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and constitutes the part of the present invention, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is a kind of a kind of flow signal of specific implementation mode of diaphragm preparation method provided in an embodiment of the present invention
Figure.
Fig. 2 is a kind of structural schematic diagram of diaphragm 2 provided in an embodiment of the present invention.
Fig. 3 is the present invention looks up structural representation of diaphragm shown in Fig. 2.
Fig. 4 is another present invention looks up structural representation of diaphragm shown in Fig. 2.
Fig. 5 is a kind of main structure diagram of roller mould 5 provided in an embodiment of the present invention.
Fig. 6 is the gradient color effect diagram of diaphragm 2 provided in an embodiment of the present invention.
Fig. 7 is a kind of flow signal of another specific implementation mode of diaphragm preparation method provided in an embodiment of the present invention
Figure.
Fig. 8 is the structural schematic diagram for the diaphragm 3 being prepared using method shown in Fig. 7.
Fig. 9 is a kind of structural schematic diagram of reflective coating 25 provided in an embodiment of the present invention.
Figure 10 is the schematic diagram provided in an embodiment of the present invention for striking off the ink for overflowing miniature sunk structure.
Another main structure diagram of Figure 11 roller moulds 5 provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
The diaphragm color exquisiteness degree obtained for solution prior art preparation is not high, the undesirable problem of visual effect, this hair
Bright to provide a kind of diaphragm preparation method, on this basis, the present invention also provides a kind of diaphragm, a kind of shell and a kind of transfer molds
Tool.
As shown in Figure 1, a kind of diaphragm preparation method provided in an embodiment of the present invention, including following key steps：
Step 101 provides the transparent base that side is machined with miniature sunk structure.
Wherein, size of the miniature sunk structure on preset direction is less than pre-set dimension, and two neighboring miniature recessed
The interval fallen between structure is less than the pre-set dimension, and the preset direction is parallel with the surface of the transparent base.Also,
In the embodiment of the present invention, the direction that preset direction can be parallel with the surface of transparent base can also be and transparent base
The parallel multiple directions in surface.
The size that the pre-set dimension cannot be identified or be differentiated for human eye, usually more than 70 μm.
For example, as shown in Figure 2 (Fig. 2 is a kind of structural schematic diagram of diaphragm 2 provided in an embodiment of the present invention), can first provide
Side is machined with the transparent base 21 of miniature sunk structure 23.Size of the miniature sunk structure 23 on preset direction is less than above-mentioned
Pre-set dimension, and the interval between two neighboring miniature sunk structure 23 might be less that above-mentioned pre-set dimension.In fig. 2,
Preset direction is the direction parallel with the surface of transparent base 21.
For example, as shown in Figure 3 a kind of present invention looks up structural representation of diaphragm shown in Fig. 2 (Fig. 3 be), with transparent base 21
The parallel direction in surface on, miniature sunk structure 23 can be specifically width be less than pre-set dimension the first micro-recesses 231,
Second micro-recesses 232 and third micro-recesses 233, and being spaced, is two neighboring between two neighboring first micro-recesses 231
The interval between interval and two neighboring third micro-recesses 233 between second micro-recesses 232 is again smaller than default ruler
It is very little.It should be noted that observing for convenience, the part with filling pattern represents the first micro-recesses 231 to third in Fig. 3
Micro-recesses 233.
In embodiments of the present invention, the width of micro-recesses can between 10~50 μm, two neighboring micro-recesses it
Between interval can be between 10~70 μm.
For another example, as shown in Figure 4 another present invention looks up structural representation of diaphragm shown in Fig. 2 (Fig. 4 be), with transparent base 21
The parallel direction in surface on, miniature sunk structure 23 can also be that diameter is less than the cylindrical pit of pre-set dimension：First circle
The cylindrical pit 235 of Cylindrical Pit 234, second and third cylinder pit 236, and the two neighboring first cylindrical pit 234
Between be spaced, the interval between two neighboring second cylindrical pit 235 and two neighboring third cylinder pit 236
Between interval again smaller than pre-set dimension.
In embodiments of the present invention, the diameter of cylindrical pit can be between 10~50 μm, and two neighboring cylinder is recessed
Interval between hole can be between 10~70 μm.
It should be noted that other than Fig. 3 and structure shown in Fig. 4, miniature sunk structure 23 can also be cuboid,
The structures such as hemispherical dimples, the embodiment of the present invention do not limit the concrete structure of miniature sunk structure 23.
In specific implementation, above-mentioned steps 101 may include：The roller mould for being machined with miniature sunk structure is provided；Profit
Miniature sunk structure on the roller mould is transferred to the side of transparent base with UV glue, in the side of the transparent base
Form the UV glue-lines with the miniature sunk structure.
For example, can provide roller mould 5 as shown in Figure 5 first, (Fig. 5 is that the front view structure of roller mould 5 is illustrated
Figure), as shown in figure 5, being machined with micro-protrusions structure 50 on roller mould 5；Then, it is machined on roller mould 5 miniature convex
The side coating UV glue for playing structure 50, transparent base 21 is placed on roller mould 5 and is imprinted so that UV glue adheres to
In the side of transparent base 21, and obtain miniature sunk structure 23；Then the UV glue being adhered on transparent base 21 is carried out
Illumination curing, light energy when illumination curing can be 800~1100mj；Finally, as shown in Fig. 2, in transparent base 21
Side forms the UV glue-lines 22 with miniature sunk structure 23.
In embodiments of the present invention, the material of transparent base 21 can be PET or polymethyl methacrylate
Organic materials such as (Polymethyl methacrylate, PMMA).
Step 102 fills the ink of pre-set color in the miniature sunk structure to the transparent base, is formed default
The ink layer of color.
Continue as shown in Fig. 2, the ink of pre-set color can be filled to the miniature sunk structure of 21 side of transparent base
In 23, the ink layer 24 of pre-set color is formed.The grain size of the ink of pre-set color is usually between 4~8 μm.More specifically such as
Shown in Fig. 2, the ink of pre-set color is filled into the miniature sunk structure 23 on the UV glue-lines 22, pre-set color is formed
Ink layer 24.
A kind of diaphragm preparation method provided in an embodiment of the present invention, due to being to fill the ink of pre-set color to transparent base
In miniature sunk structure on material, obtain the ink layer of pre-set color, and these miniature sunk structures with the transparent base
The equal very little in interval (being not more than 70 μm) between size and adjacent miniature sunk structure on the parallel direction in the surface of material.And
It is not the ink for directly forming pre-set color over the transparent substrate by way of printing or silk-screen printing as the prior art
Layer.Therefore, the higher diaphragm of color exquisiteness degree can be prepared, more good visual experience is brought to user.
In addition, in the prior art, for the color of diaphragm usually based on uniform monochrome, homogeneity is serious, cannot meet
The individual demand of user.
In consideration of it, optionally, in a kind of diaphragm preparation method provided in an embodiment of the present invention, in above-mentioned preset direction
On, the miniature sunk structure processed on the transparent base meets at least one of following condition：It is miniature recessed in first area
The size for falling into structure is two neighboring miniature recessed less than in the size of miniature sunk structure in second area and the first area
The interval fallen between structure is more than the interval in the second area between two neighboring miniature sunk structure.
Wherein, the first area and the second area are two regions adjacent in the transparent base.
In a specific embodiment, the miniature sunk structure is micro-recesses, and the micro-recesses are through described
Transparent base, and the micro-recesses are distributed parallelly on the transparent base, and, micro-recesses in the first area
Width be less than the second area in micro-recesses width, and in the first area between two neighboring micro-recesses between
Interval in more than the second area between two neighboring micro-recesses.
Specifically as shown in figure 3, the miniature sunk structure 23 on transparent base 21 is micro-recesses, micro-recesses are through described
The short side of transparent base 21, and with the short side parallelly distribute on of transparent base 21, and：First in first area 201 is miniature recessed
The width of slot 231 is less than the width of the second micro-recesses 232 in second area 202, and two neighboring the in first area 201
Interval between one micro-recesses 231 is more than the interval in second area 202 between two neighboring second micro-recesses 232；Or
Person, the width of the second micro-recesses 232 in second area 202 are less than the width of the third micro-recesses 233 in third region 203
Degree, and the interval in second area 202 between two neighboring second micro-recesses 232 is two neighboring more than in third region 203
Interval between third micro-recesses 233.
It more specifically, in the embodiment shown in fig. 3, can be relatively narrow with working width (for example, 10 in first area 201
μm) the first micro-recesses 231, and the interval between two neighboring first micro-recesses 231 is larger (for example, 50 μm)；
Two regions 202, can (for example, 20 μm) wider with working width the second micro-recesses 232, and two neighboring second micro-recesses
Interval between 232 is smaller (for example, 30 μm)；In third region 203, can (for example, 50 μm) wider with working width third
Micro-recesses 233, and interval smaller (for example, 10 μm) between two neighboring third micro-recesses 233.
That is, in figure 3, from first area 201 to third region 203, the interval between adjacent micro-recesses gradually subtracts
Small, the width of micro-recesses itself gradually increases, in this way, can make first area 201, second area 202 and third region
The quantity of ink filled in 203 is gradually incremented by, so that the color of finally obtained diaphragm has from first area 201 to third
The fade effect that region 203 is gradually deepened can meet the individual demand of user.
In another embodiment specific implementation mode, the miniature sunk structure on the transparent base is cylindrical pit, and：
The diameter of cylindrical pit in the first area is less than the diameter of the cylindrical pit in the second area, and described the
Interval in one region between two neighboring cylinder pit is more than in the second area between two neighboring cylindrical pit
Interval.
Specifically as shown in figure 4, the miniature sunk structure 23 on transparent base 21 is cylindrical pit, and：First area
The diameter of the first cylindrical pit 234 in 201 is less than the diameter of the second cylindrical pit 235 in second area 202, and the
Interval in one region 201 between two neighboring first cylindrical pit 234 is more than two neighboring second circle in second area 202
Interval between Cylindrical Pit 235；Alternatively, the diameter of the second cylindrical pit 235 in second area 202 is less than third region
The diameter of third cylinder pit 236 in 203, and in second area 202 between two neighboring second cylindrical pit 235
Interval is more than the interval between two neighboring third cylinder pit 236 in third region 203.
More specifically, in the embodiment shown in fig. 4, in first area 201, it is smaller (for example, 10 that diameter can be processed
μm) the first cylindrical pit 234, and the interval between the two neighboring first cylindrical pit 234 is larger (for example, 50 μm)；
In second area 202, the second cylindrical pit 235 for being relatively large in diameter (for example, 20 μm), and two neighboring second circle can be processed
Interval between Cylindrical Pit 235 is smaller (for example, 30 μm)；In third region 203, diameter bigger can be processed (for example, 50 μ
M) third cylinder pit 236, and interval smaller (for example, 10 μm) between two neighboring third cylinder pit 236.
That is, in Fig. 4, from first area 201 to third region 203, the interval between adjacent column shape pit is gradual
Reduce, the diameter of cylindrical pit itself gradually increases, in this way, can make first area 201, second area 202 and third
The quantity of ink filled in region 203 gradually be incremented by so that the color of finally obtained diaphragm have from first area 201 to
The fade effect that third region 203 is gradually deepened can meet the individual demand of user.
It should be noted that in embodiments of the present invention, the depth of miniature sunk structure is (vertical with the surface of transparent base
Direction) can also be between 10~70 μm, also, when forming gradient color effect, the depth of miniature sunk structure can not
It changes.
Fig. 6 shows the gradient color effect diagram of diaphragm 2 provided in an embodiment of the present invention, as shown in fig. 6, the A of diaphragm
Region is light areas, and the B area of diaphragm is gradient color region, and the B area of diaphragm is darker regions, to be formed on the whole
The fade effect gradually deepened from a-quadrant to B area color brings abundant visual experience to user.
In short, in embodiments of the present invention, since in adjacent first area and second area, miniature sunk structure exists
The interval between size and two neighboring miniature sunk structure on preset direction is different, therefore, filling can be made to difference
The quantity of ink of the pre-set color in region is different, so as to obtain the diaphragm with color gradient effect, and then can meet use
The individual demand at family further increases the visual experience of user.
In another embodiment of the present invention, as shown in fig. 7, a kind of diaphragm preparation method provided in an embodiment of the present invention,
It may include steps of：
Step 701, offer are machined with the roller mould of miniature sunk structure.
Step 702, the side that the miniature sunk structure on the roller mould is transferred to transparent base using UV glue,
The side of the transparent base forms the UV glue-lines with the miniature sunk structure.
Above-mentioned steps 701 to 702 can be understood as a kind of specific embodiment party of the step 101 of embodiment shown in FIG. 1
Formula, and above roughly the same to the explanation of step 101, details are not described herein again.
Step 703 forms reflective coating on the UV glue-lines.
Fig. 8 shows the structural schematic diagram for the diaphragm 3 being prepared using method shown in Fig. 7, with reference to figure 8 it is found that can
The side not adhered to transparent base 21 on UV glue-lines 22 forms reflective coating 25.
Reflective coating 25 can be made of metal materials such as silica and/or titanium oxide.Vacuum evaporation can specifically be passed through
Mode be prepared.
, can be first clean by the surface clean of UV glue-lines when specific implementation, it will then be stained with the transparent base of UV glue-lines 22
Material 21 is put into coating machine, and is vacuumized to coating machine, then by silica and/or the direct or indirect heating evaporation of titanium oxide target
(heating temperature is generally 60-70 degrees Celsius), and under the action of glow discharge, so that evaporation is obtained target molecule or atom obtain
Enough to energy after move and be deposited on the surface of UV glue-lines 22, obtain the metallic reflective coating of certain number of plies and thickness
Layer 25, to make the diaphragm being finally prepared 3 have strong metal-like.
Fig. 9 shows a kind of structural schematic diagram that reflective coating 25 is prepared using the above method, in fig.9, reflection
Film layer 25 includes the first titanium oxide layer 251, silicon oxide layer 252 and the second titanium oxide layer 253 being stacked, wherein the first oxidation
Titanium layer 251 is contacted with UV glue-lines 22.Also, optionally, the first titanium oxide layer 251, silicon oxide layer 252 and the second titanium oxide layer
253 thickness can be between 50~200nm, for example, in one embodiment, the first titanium oxide layer 251, silicon oxide layer 252
Thickness with the second titanium oxide layer 253 can be respectively：168.2nm, 143.3nm, 168.2nm, correspondingly, reflective coating 25
Overall thickness is 479.7nm.
It should be noted that in embodiments of the present invention, the depth of miniature sunk structure 23 is more than the thickness of reflective coating 25
Degree, therefore, after forming reflective coating 25 on UV glue-lines 22, the side of transparent base 21 still remains miniature sunk structure 23.
Step 704 fills the ink of pre-set color into the miniature sunk structure on the UV glue-lines, is formed and presets face
The ink layer of color.
Above-mentioned steps 704 correspond to step 102 in embodiment shown in FIG. 1.Also, it is found that specifically can be with reference to figure 8
It is coated with the ink for filling pre-set color in the miniature sunk structure 23 of reflective coating 25, forms the ink layer 24 of pre-set color.
Step 705 forms covering ink layer on the ink layer.
With continued reference to Fig. 8 ink layer 27 is covered it is found that being formed on ink layer 24.Under normal circumstances, covering ink layer can
To include that white covers at least one of ink layer and black mask ink layer.
In a specific embodiment, one layer can be printed in vain on ink layer 24 first by way of silk-screen printing
Color covers ink layer, and thickness can be 6~8 μm, can be toasted 30 minutes at a temperature of 80 ± 5 DEG C after printing, make white screening
Lid ink layer cures；Then it is covered in white by way of silk-screen printing and prints one layer of black mask ink layer on ink layer,
Thickness may be 6~8 μm, can also be toasted 30 minutes at a temperature of 80 ± 5 DEG C after printing, keep black mask ink layer solid
Change, ultimately forms and cover ink layer 27.
Since in practical applications, diaphragm 3 often by covering the shell substrate adhesion of ink layer 27 and terminal, obtains final
Shell.Therefore, it is formed on ink layer 24 and covers ink layer 27, it can be to the portion of flaw or color unevenness on shell base material
Divide and covered, makes finally obtained shell that there is better visual effect.
In addition, a kind of diaphragm preparation method provided in an embodiment of the present invention, due to be by the ink of pre-set color fill to
In the miniature sunk structure on UV glue-lines on transparent base, the ink layer of pre-set color, and these miniature recess knots are obtained
The equal very little in interval between the size of structure and two neighboring miniature sunk structure.Rather than directly pass through as the prior art
The mode of printing or silk-screen printing forms the ink layer of pre-set color over the transparent substrate or on UV glue-lines.Therefore, it can prepare
The higher diaphragm of color exquisiteness degree is obtained, more good visual experience is brought to user.
Optionally, it on the basis of Fig. 1 or shown in Fig. 7 any embodiments, is filled to institute by the ink of pre-set color
It states in the miniature sunk structure on UV glue-lines, is formed after the ink layer of pre-set color, namely in above-mentioned steps 102 or above-mentioned step
After rapid 704, the method can also include：Strike off the pre-set color for overflowing the miniature sunk structure on the transparent base
Ink.It can preferably ensure that the ink of pre-set color is only filled in miniature sunk structure in this way, it is final to more preferably ensure
The exquisite degree of the color of obtained diaphragm.
In specific implementation, as shown in Figure 10, diaphragm 3 can be wound on roller 4, and the process of the rotation in roller 4
In, the ink for the pre-set color for overflowing miniature sunk structure 23 is struck off using scraper 6.
Corresponding to a kind of diaphragm preparation method that above-described embodiment provides, the embodiment of the present invention additionally provides a kind of diaphragm,
It illustrates below in conjunction with the accompanying drawings.
As shown in Fig. 2, a kind of diaphragm 2 provided in an embodiment of the present invention, may include：21 He of transparent base being stacked
Ink layer 24 with pre-set color.
In fig. 2, the side of the transparent base 21 is formed with miniature sunk structure 23, and the ink layer 24 is filled in institute
It states in miniature sunk structure 23；Also, size of the miniature sunk structure 23 on preset direction is less than pre-set dimension, and phase
Interval between adjacent two miniature sunk structures 23 is less than the pre-set dimension；Wherein, the preset direction and the transparent base
The surface of material is parallel.
Also, the direction that in embodiments of the present invention, preset direction can be parallel with the surface of transparent base, also may be used
To be multiple directions parallel with the surface of transparent base.
Likewise, the pre-set dimension is the size that human eye cannot be identified or be differentiated, usually more than 70 μm.
(Fig. 3 is a kind of present invention looks up structural representation of diaphragm shown in Fig. 2) as shown in Figure 3, in the table with transparent base 21
On the parallel direction in face, miniature sunk structure 23 can be specifically the first micro-recesses 231, second that width is less than pre-set dimension
Micro-recesses 232 and third micro-recesses 233, and being spaced between two neighboring first micro-recesses 231, two neighboring second
The interval between interval and two neighboring third micro-recesses 233 between micro-recesses 232 is again smaller than pre-set dimension.
In embodiments of the present invention, the width of micro-recesses can between 10~50 μm, two neighboring micro-recesses it
Between interval can be between 10~70 μm.
(Fig. 4 is another present invention looks up structural representation of diaphragm shown in Fig. 2) as shown in Figure 4, in the table with transparent base 21
On the parallel direction in face, miniature sunk structure 23 can also be that diameter is less than the cylindrical pit of pre-set dimension：First is cylindrical
The cylindrical pit 235 of pit 234, second and third cylinder pit 236, and between the two neighboring first cylindrical pit 234
Be spaced, the interval between two neighboring second cylindrical pit 235 and between two neighboring third cylinder pit 236
Interval again smaller than pre-set dimension.
In embodiments of the present invention, the diameter of cylindrical pit can be between 10~50 μm, and two neighboring cylinder is recessed
Interval between hole can be between 10~70 μm.
It should be noted that other than Fig. 3 and structure shown in Fig. 4, miniature sunk structure 23 can also be cuboid,
The structures such as hemispherical dimples, the embodiment of the present invention do not limit the concrete structure of miniature sunk structure 23.
In practical applications, it can utilize roller mould transfer that miniature sunk structure 23, specific preparation process is prepared
Embodiment of the method part is referred to, details are not described herein again.
A kind of diaphragm provided in an embodiment of the present invention, due to the ink of pre-set color be filled in it is miniature on transparent base 21
In sunk structure 23, and the interval between the size of these miniature sunk structures 23 and two neighboring miniature sunk structure 23
Equal very little.Therefore, compared to existing diaphragm, color exquisiteness degree is high, and more good visual experience can be brought to user.
In addition, in the prior art, for the color of diaphragm usually based on uniform monochrome, homogeneity is serious, cannot meet
The individual demand of user.
In consideration of it, optionally, in another embodiment, a kind of diaphragm provided in an embodiment of the present invention, in the default side
Upwards, the miniature sunk structure processed on the transparent base meets at least one of following condition：It is miniature in first area
The size of sunk structure is two neighboring miniature less than in the size of miniature sunk structure in second area and the first area
Interval between sunk structure is more than the interval in the second area between two neighboring miniature sunk structure.
Wherein, the first area and the second area are two regions adjacent in the transparent base.
In a specific embodiment, the miniature sunk structure is micro-recesses, and the micro-recesses are through described
Transparent base, and the micro-recesses are distributed parallelly on the transparent base；And：Micro-recesses in the first area
Width be less than the second area in micro-recesses width, and in the first area between two neighboring micro-recesses between
Interval in more than the second area between two neighboring micro-recesses.
Specifically as shown in figure 3, the miniature sunk structure 23 on transparent base 21 is micro-recesses, micro-recesses are through described
The short side of transparent base 21, and with the short side parallelly distribute on of transparent base 21, and：First in first area 201 is miniature recessed
The width of slot 231 is less than the width of the second micro-recesses 232 in second area 202, and two neighboring the in first area 201
Interval between one micro-recesses 231 is more than the interval in second area 202 between two neighboring second micro-recesses 232；Or
Person, the width of the second micro-recesses 232 in second area 202 are less than the width of the third micro-recesses 233 in third region 203
Degree, and the interval in second area 202 between two neighboring second micro-recesses 232 is two neighboring more than in third region 203
Interval between third micro-recesses 233.
More specifically, in the embodiment shown in fig. 3, in first area 201, the width of the first micro-recesses 231 compared with
Narrow (for example, 10 μm), and the interval between two neighboring first micro-recesses 231 is larger (for example, 50 μm)；In second area
202, the wider width (for example, 20 μm) of the second micro-recesses 232, and the interval between two neighboring second micro-recesses 232
Smaller (for example, 30 μm)；In third region 203, the width of third micro-recesses 233 is wider (for example, 50 μm) and two neighboring
Interval smaller (for example, 10 μm) between third micro-recesses 233.
That is, in figure 3, from first area 201 to third region 203, the interval between adjacent micro-recesses gradually subtracts
Small, the width of micro-recesses itself gradually increases, in this way, can make first area 201, second area 202 and third region
The quantity of ink filled in 203 is gradually incremented by, so that the color of finally obtained diaphragm has from first area 201 to third
The fade effect that region 203 is gradually deepened can meet the individual demand of user.
In another embodiment specific implementation mode, the miniature sunk structure on the transparent base is cylindrical pit, and：
The diameter of cylindrical pit in the first area is less than the diameter of the cylindrical pit in the second area, and described the
Interval in one region between two neighboring cylinder pit is more than in the second area between two neighboring cylindrical pit
Interval.
Specifically as shown in figure 4, the miniature sunk structure 23 on transparent base 21 is cylindrical pit, and：First area
The diameter of the first cylindrical pit 234 in 201 is less than the diameter of the second cylindrical pit 235 in second area 202, and the
Interval in one region 201 between two neighboring first cylindrical pit 234 is more than two neighboring second circle in second area 202
Interval between Cylindrical Pit 235；Alternatively, the diameter of the second cylindrical pit 235 in second area 202 is less than third region
The diameter of third cylinder pit 236 in 203, and in second area 202 between two neighboring second cylindrical pit 235
Interval is more than the interval between two neighboring third cylinder pit 236 in third region 203.
More specifically, in the embodiment shown in fig. 4, in first area 201, the diameter of the first cylindrical pit 234
Smaller (for example, 10 μm), and the interval between the two neighboring first cylindrical pit 234 is larger (for example, 50 μm)；In the secondth area
Domain 202, the second cylindrical pit 235 are relatively large in diameter (for example, 20 μm), and between the two neighboring second cylindrical pit 235
Interval it is smaller (for example, 30 μm)；In third region 203, the diameter bigger (for example, 50 μm) of third cylinder pit 236, and
Interval smaller (for example, 10 μm) between two neighboring third cylinder pit 236.
That is, in Fig. 4, from first area 201 to third region 203, the interval between adjacent miniature circular Cylindrical Pit
It is gradually reduced, the diameter of miniature circular Cylindrical Pit itself gradually increases, in this way, can make first area 201, second area
202 and third region 203 in the quantity of ink filled gradually be incremented by so that the color of finally obtained diaphragm has from first
The fade effect that region 201 is gradually deepened to third region 203 can meet the individual demand of user.
Fig. 6 shows the gradient color effect diagram of diaphragm 2 provided in an embodiment of the present invention, as shown in fig. 6, the A of diaphragm
Region is light areas, and the B area of diaphragm is gradient color region, and the B area of diaphragm is darker regions, to be formed on the whole
The fade effect gradually deepened from a-quadrant to B area color brings abundant visual experience to user.
In short, in embodiments of the present invention, since in adjacent first area and second area, miniature sunk structure exists
The interval between size and two neighboring miniature sunk structure on preset direction is different, therefore, filling can be made to difference
The amount increasing or decreasing of the ink of the pre-set color in region, so as to obtain the diaphragm with color gradient effect, Jin Erke
To meet the individual demand of user, the visual experience of user is further increased.
Optionally, as shown in Fig. 2, diaphragm 2 can also include：UV glue-lines 22；The UV glue-lines 22 are located at the transparent base
Between material 21 and the ink layer 24, and the miniature sunk structure 23 is specifically processed on the UV glue-lines 22 away from described
The side of bright base material 21, the ink layer 24 are filled in processing in the miniature sunk structure 23 on the UV glue-lines 22.
Optionally, as shown in figure 8, a kind of diaphragm 3 provided in an embodiment of the present invention, in addition to the transparent base including being stacked
Material 21, UV glue-lines 22 and ink layer 24 can also include：The reflection being formed between the UV glue-lines 22 and the ink layer 24
Film layer 25, so that the diaphragm 3 being finally prepared has strong metal-like.
Reflective coating 25 can be made of metal materials such as silica and/or titanium oxide.Vacuum evaporation can specifically be passed through
Mode be prepared.
Fig. 9 shows a kind of structural schematic diagram that reflective coating 25 is prepared using the above method, in fig.9, reflection
Film layer 25 includes the first titanium oxide layer 251, silicon oxide layer 252 and the second titanium oxide layer 253 being stacked, wherein the first oxidation
Titanium layer 251 is contacted with UV glue-lines 22.Also, optionally, the first titanium oxide layer 251, silicon oxide layer 252 and the second titanium oxide layer
253 thickness can be between 50~200nm, for example, in one embodiment, the first titanium oxide layer 251, silicon oxide layer 252
Thickness with the second titanium oxide layer 253 can be respectively：168.2nm, 143.3nm, 168.2nm, correspondingly, reflective coating 25
Overall thickness is 479.7nm.
It should be noted that in embodiments of the present invention, the depth of miniature sunk structure 23 is more than the thickness of reflective coating 25
Degree, therefore, after forming reflective coating 25 on UV glue-lines 22, the side of transparent base 21 still remains miniature sunk structure 23.
Optionally, as shown in figure 8, a kind of diaphragm 3 provided in an embodiment of the present invention, can also include：It is formed in the oil
Away from the covering ink layer 27 of the side of the transparent base 21 in layer of ink 24.
Under normal conditions, covering ink layer 27 includes but not limited to：White covers in ink layer and black mask ink layer
At least one；Wherein, the white covers ink layer close to the ink layer 24, and the black mask ink layer is far from described
Ink layer 24.
Since in practical applications, diaphragm 3 is obtained final by the shell substrate adhesion of covering ink layer 27 and terminal
Shell.Therefore, it is formed on ink layer 24 and covers ink layer 27, it can be to the part of flaw or color unevenness on shell base material
It is covered, makes finally obtained shell that there is better visual effect.
On the basis of a kind of diaphragm provided in an embodiment of the present invention, the embodiment of the present invention also provides a kind of shell, the shell
Body may include：The diaphragm that shell base material and any embodiment of the present invention being pasted onto on the shell base material provide.Wherein, shell
Body base material can be glass or composite material base.
Since shell provided in an embodiment of the present invention includes diaphragm provided in an embodiment of the present invention, the embodiment of the present invention
The shell of offer can obtain advantageous effect identical with diaphragm provided in an embodiment of the present invention, to avoid repeating, herein no longer
It repeats.
In addition to diaphragm preparation method, diaphragm and shell, the embodiment of the present invention additionally provides a kind of roller mould, with reference to
Attached drawing illustrates.
(Fig. 5 is the main structure diagram of roller mould provided in an embodiment of the present invention) as shown in Figure 5, the present invention is implemented
It is machined with micro-protrusions structure 50 on a kind of roller mould 5 that example provides.
Size of the micro-protrusions structure 50 on preset direction is less than pre-set dimension, and adjacent on the roller mould
Interval between two micro-protrusions structures 50 is less than the pre-set dimension.
Wherein, the preset direction is vertical with the short transverse of micro-protrusions structure processed on the roller mould.
Micro-protrusions structure 50 can be specifically the various structures such as cuboid, hemispherical, cone, and the present invention is implemented
Example does not limit this.
Specifically, when it is micro-recesses to need to process miniature sunk structure over the transparent substrate, on roller mould
Micro-protrusions structure can run through one end of roller mould to the other end, and the micro-protrusions are distributed parallelly on the transfer mold
On tool.
A kind of roller mould 5 provided in an embodiment of the present invention, due to being machined with micro-protrusions structure 50 thereon, and it is described micro-
Size of the type bulge-structure 50 on preset direction is less than pre-set dimension, and two neighboring micro-protrusions knot on the roller mould
Interval between structure 50 is less than the pre-set dimension, therefore, the roller mould can be utilized on the transparent base for preparing diaphragm
Processing and the above-mentioned comparable miniature sunk structure of 50 size of micro-protrusions structure, to be further advanced by transparent base
The ink of filling pre-set color obtains the high diaphragm of color exquisiteness degree in miniature sunk structure.
Optionally, in roller mould 5 provided in an embodiment of the present invention, on the preset direction, the roller mould
The micro-protrusions structure of upper processing meets at least one of following condition：The size of micro-protrusions structure is less than in the fourth region
Interval in 5th region in the size of micro-protrusions structure and the fourth region between two neighboring micro-protrusions structure
More than the interval between two neighboring micro-protrusions structure in the 5th region.Wherein, the fourth region and the described 5th
Region is two regions adjacent on the roller mould.
Illustratively as shown in figure 11, can roller mould 5 501 processing dimension of the fourth region it is smaller (width is smaller,
Such as 10 μm) the first micro-protrusions structure 51, and interval between two neighboring first micro-protrusions structure 51 it is larger (such as
50μm)；In the second micro-protrusions knot of 502 processing dimension of the 5th region of roller mould 5 slightly larger (width is larger, such as 30 μm)
Structure 52, and the interval between two neighboring second micro-protrusions structure 52 is smaller (such as 20 μm)；Alternatively, in roller mould 5
The third micro-protrusions structure 53 of 6th region, 503 processing dimension bigger (width bigger, such as 50 μm), and two neighboring third
Interval smaller (such as 10 μm) between micro-protrusions structure 53.In this way, from 501 to the 6th area of the fourth region of roller mould 5
Domain 503, the interval between two neighboring micro-protrusions structure is gradually reduced, and the size of miniature sunk structure itself gradually increases
Greatly.
It can be appreciated that in embodiments of the present invention, since in two adjacent regions, micro-protrusions structure is in preset direction
On size and two neighboring miniature sunk structure between interval it is different.It therefore, can be to preparation using the roller mould
The miniature sunk structure opposite with the above-mentioned variation tendency of micro-protrusions structure is processed on the transparent base of diaphragm, so that filling out
It is charged to the gradual increasing or decreasing of amount of the ink in the miniature sunk structure in transparent base different zones, to obtain with face
The diaphragm of color fade effect, and then the individual demand of user can be met, further increase the visual experience of user.
It should be noted that a kind of diaphragm preparation method, diaphragm, shell and roller mould provided in an embodiment of the present invention,
It is the technical solution based on same inventive concept, the content of not detailed description, can refer to other implementations in one embodiment
Example.
It should also be noted that, herein, the terms "include", "comprise" or its any other variant are intended to non-
It is exclusive to include, so that process, method, article or device including a series of elements include not only those elements,
But also include other elements that are not explicitly listed, or further include solid by this process, method, article or device
Some elements.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including
There is also other identical elements in the process of the element, method, article or device.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within the protection of the present invention.
Claims (10)
1. a kind of diaphragm preparation method, which is characterized in that the method includes：
The transparent base that side is machined with miniature sunk structure is provided, size of the miniature sunk structure on preset direction is small
In pre-set dimension, and the interval between two neighboring miniature sunk structure is less than the pre-set dimension, the preset direction and institute
The surface for stating transparent base is parallel；
The ink of pre-set color is filled in the miniature sunk structure to the transparent base, the ink of pre-set color is formed
Layer.
2. according to the method described in claim 1, it is characterized in that,
On the preset direction, the miniature sunk structure processed on the transparent base meets at least one in following condition
Kind：
The size of miniature sunk structure is less than the size and described first of miniature sunk structure in second area in first area
Interval in region between two neighboring miniature sunk structure be more than in the second area two neighboring miniature sunk structure it
Between interval；
Wherein, the first area and the second area are two regions adjacent in the transparent base.
3. according to the method described in claim 2, it is characterized in that,
The miniature sunk structure is micro-recesses, and the micro-recesses run through the transparent base, and the micro-recesses are flat
Row is distributed on the transparent base；And
The width of micro-recesses is less than the width of micro-recesses in the second area, and firstth area in the first area
Interval in domain between two neighboring micro-recesses is more than the interval in the second area between two neighboring micro-recesses.
4. according to the method described in claim 1, it is characterized in that,
The transparent base that side is provided and is machined with miniature sunk structure, including：It provides and is machined with turning for miniature sunk structure
Stamp has；Miniature sunk structure on the roller mould is transferred to the side of the transparent base using UV glue, described
The side of transparent base forms the UV glue-lines with the miniature sunk structure；Then,
It is described to fill the ink of pre-set color in the miniature sunk structure to the transparent base, form the oil of pre-set color
Layer of ink, including：
The ink of pre-set color is filled into the miniature sunk structure on the UV glue-lines, the ink layer of pre-set color is formed.
5. according to claim 1-4 any one of them methods, which is characterized in that the method further includes：
Strike off the ink for the pre-set color for overflowing the miniature sunk structure on the transparent base.
6. a kind of diaphragm, which is characterized in that the diaphragm includes：The transparent base being stacked and the ink with pre-set color
Layer, wherein
The side of the transparent base is machined with miniature sunk structure, and the ink layer is filled in the miniature sunk structure；
Size of the miniature sunk structure on preset direction be less than pre-set dimension, and between two neighboring miniature sunk structure between
Every less than the pre-set dimension；Wherein, the preset direction is parallel with the surface of the transparent base.
7. diaphragm according to claim 6, which is characterized in that
On the preset direction, the miniature sunk structure processed on the transparent base meets at least one in following condition
Kind：
The size of miniature sunk structure is less than the size and described first of miniature sunk structure in second area in first area
Interval in region between two neighboring miniature sunk structure be more than in the second area two neighboring miniature sunk structure it
Between interval；
Wherein, the first area and the second area are two regions adjacent in the transparent base.
8. diaphragm according to claim 7, which is characterized in that
The miniature sunk structure is micro-recesses, and the micro-recesses run through the transparent base, and the micro-recesses are flat
Row is distributed on the transparent base；And
The width of micro-recesses is less than the width of micro-recesses in the second area, and firstth area in the first area
Interval in domain between two neighboring micro-recesses is more than the interval in the second area between two neighboring micro-recesses.
9. diaphragm according to claim 6, which is characterized in that
The diaphragm further includes：UV glue-lines；
The UV glue-lines are between the transparent base and the ink layer, and the miniature sunk structure is specifically processed in institute
The side for deviating from the transparent base on UV glue-lines is stated, the ink layer is filled in miniature recess of the processing on the UV glue-lines
In structure.
10. a kind of shell, which is characterized in that including：Shell base material and be pasted onto on the shell base material such as claim 6-9
Any one of them diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810232659.8A CN108574748A (en) | 2018-03-19 | 2018-03-19 | Diaphragm preparation method, diaphragm and shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810232659.8A CN108574748A (en) | 2018-03-19 | 2018-03-19 | Diaphragm preparation method, diaphragm and shell |
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| Publication Number | Publication Date |
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| CN108574748A true CN108574748A (en) | 2018-09-25 |
Family
ID=63574295
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| CN201810232659.8A Pending CN108574748A (en) | 2018-03-19 | 2018-03-19 | Diaphragm preparation method, diaphragm and shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110300199A (en) * | 2019-07-15 | 2019-10-01 | Oppo广东移动通信有限公司 | Shell of electronic equipment and preparation method thereof, electronic equipment |
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