CN107660108A - The metal foil method for sticking and covering of metal foil members and mobile terminal - Google Patents
The metal foil method for sticking and covering of metal foil members and mobile terminal Download PDFInfo
- Publication number
- CN107660108A CN107660108A CN201711012079.XA CN201711012079A CN107660108A CN 107660108 A CN107660108 A CN 107660108A CN 201711012079 A CN201711012079 A CN 201711012079A CN 107660108 A CN107660108 A CN 107660108A
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- China
- Prior art keywords
- metal foil
- film layer
- wrinkle resistant
- resistant film
- positioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002184 metal Substances 0.000 title claims abstract description 205
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 205
- 239000011888 foil Substances 0.000 title claims abstract description 200
- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000037303 wrinkles Effects 0.000 claims abstract description 99
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000011889 copper foil Substances 0.000 claims description 4
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 12
- 239000002390 adhesive tape Substances 0.000 description 6
- 239000003292 glue Substances 0.000 description 6
- MTCPZNVSDFCBBE-UHFFFAOYSA-N 1,3,5-trichloro-2-(2,6-dichlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1C1=C(Cl)C=CC=C1Cl MTCPZNVSDFCBBE-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 150000003071 polychlorinated biphenyls Chemical group 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/205—Heat-dissipating body thermally connected to heat generating element via thermal paths through printed circuit board [PCB]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0058—Laminating printed circuit boards onto other substrates, e.g. metallic substrates
- H05K3/0061—Laminating printed circuit boards onto other substrates, e.g. metallic substrates onto a metallic substrate, e.g. a heat sink
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/06—Thermal details
- H05K2201/066—Heatsink mounted on the surface of the PCB
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/10371—Shields or metal cases
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Telephone Set Structure (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of metal foil members, the metal foil members include：Metal foil, wrinkle resistant film layer and positioning film layer, wrinkle resistant film layer pastes on metal foil, positioning film layer is separably attached in wrinkle resistant film layer or metal foil, the edge of positioning film layer exceeds the edge of metal foil, the invention also discloses a kind of metal foil method for sticking and covering of mobile terminal, by the above-mentioned means, the present invention can avoid metal foil from fold occur, the product yield of mobile terminal is lifted.
Description
Technical field
The present invention relates to electronic device field, is pasted more particularly to the metal foil of a kind of metal foil members and mobile terminal
Coating method.
Background technology
With the development of science and technology, the mobile terminal such as smart mobile phone has become the necessity in people's life.
Metal foil (for example, copper foil) would generally be pasted on some devices in mobile terminal to be radiated or shielded dry
Disturb, for example, on the flexible PCB of display screen would generally metal paper tinsel radiated, but in the processing procedure of mobile terminal (including
The processing procedure of display screen) metal foil on flexible PCB would generally be made fold occur, this fold can cause display screen pressing
When produce water ripples, and damage can be produced to display screen, reduce the product yield of display screen.
The content of the invention
The embodiment of the present invention provides a kind of metal foil method for sticking and covering of metal foil members and mobile terminal, can avoid gold
There is fold in category paper tinsel, lifts the product yield of mobile terminal.
The embodiment of the present invention use a technical scheme be：A kind of metal foil members are provided, the metal foil members include：
Metal foil；Wrinkle resistant film layer, is pasted on metal foil；Positioning film layer, it is separably attached in wrinkle resistant film layer or metal foil, it is fixed
The edge of position film layer exceeds the edge of metal foil.
The embodiment of the present invention use another technical scheme be：A kind of metal foil method for sticking and covering of mobile terminal is provided,
Pasted for carrying out metal foil using metal foil members, metal foil members include：Metal foil；Wrinkle resistant film layer, is covered in metal foil
On；Positioning film layer, it is separably attached in wrinkle resistant film layer or metal foil, the edge of positioning film layer exceeds the side of metal foil
Edge；Metal foil method for sticking and covering includes：Positioning film layer is covered in affixed object or affixed object week beyond the part of metal foil edge
On the object on side, while metal foil is covered on affixed object；Positioning film layer is separated from wrinkle resistant film layer or metal foil；Carry out
The processing procedure related to affixed object；After the processing procedure related to affixed object terminates, wrinkle resistant film layer is peeled off from metal foil.
The beneficial effects of the invention are as follows：The embodiment of the present invention is by setting metal foil members to include metal foil, wrinkle resistant film layer
And positioning film layer, wrinkle resistant film layer paste on metal foil, positioning film layer is separably attached in wrinkle resistant film layer or metal foil,
The edge of positioning film layer exceeds the edge of metal foil, and wrinkle resistant film layer can prevent metal foil in the processing procedure related to affixed object
Corrugation, and can be peeled off wrinkle resistant film layer from metal foil, after the processing procedure related to affixed object terminates so as to avoid metal
There is fold in paper tinsel, lifts the product yield of mobile terminal.
Brief description of the drawings
Fig. 1 is the overlooking the structure diagram of the metal foil members of first embodiment of the invention；
Fig. 2 is the cross section structure diagram in metal foil members A-A directions along Fig. 1 of first embodiment of the invention；
Fig. 3 is the overlooking the structure diagram of the metal foil members of second embodiment of the invention；
Fig. 4 is the cross section structure diagram in metal foil members B-B directions along Fig. 3 of second embodiment of the invention；
Fig. 5 is the schematic flow sheet of the metal foil method for sticking and covering of first embodiment of the invention mobile terminal；
Positive structure schematic when Fig. 5 a are the flexible PCB expansion of mobile terminal of the embodiment of the present invention；
Fig. 5 b are that flexible PCB bending reclines to the structure schematic diagram during display screen back side；
Fig. 6 is the schematic flow sheet of the metal foil method for sticking and covering of second embodiment of the invention mobile terminal.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.It is understood that specific embodiment described herein is only used for explaining the present invention, rather than the limit to the present invention
It is fixed.It also should be noted that for the ease of description, part related to the present invention illustrate only in accompanying drawing and not all knot
Structure.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Term " first ", " second " in the present invention etc. are to be used to distinguish different objects, rather than specific suitable for describing
Sequence.In addition, term " comprising " and " having " and their any deformations, it is intended that cover non-exclusive include.Such as comprising
The step of process of series of steps or unit, method, system, product or equipment are not limited to list or unit, and
It is alternatively also to include the step of not listing or unit, or alternatively also includes for these processes, method, product or equipment
Intrinsic other steps or unit.
Referenced herein " embodiment " is it is meant that the special characteristic, structure or the characteristic that describe can wrap in conjunction with the embodiments
In at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is the overlooking the structure diagram of the metal foil members of first embodiment of the invention,
Fig. 2 is the cross section structure diagram in metal foil members A-A directions along Fig. 1 of first embodiment of the invention.
In the present embodiment, metal foil members can include：Metal foil 11, wrinkle resistant film layer 12, positioning film layer 13 and guarantor
Cuticular layer 14.
Metal foil 11 can be copper foil or aluminium foil.It is appreciated that metal foil 11 can also use other metal materials.
Wrinkle resistant film layer 12 is covered in metal foil 11.Alternatively, wrinkle resistant film layer 12 can be pasted using easily peelable glue
In metal foil 11.For example, wrinkle resistant film layer 12 can use mould release membrance.
Alternatively, the area coverage of wrinkle resistant film layer 12 is equal to surface area of the metal foil 11 close to the surface of wrinkle resistant film layer 12.
It should be understood that the area coverage of wrinkle resistant film layer 12 might be less that the surface area of metal foil 12.
Positioning film layer 13 is separably attached in wrinkle resistant film layer 12 or metal foil 11, and the edge of positioning film layer 13 exceeds
The edge of metal foil 11.
Alternatively, in the present embodiment, positioning film layer 13 is strippingly covered in wrinkle resistant film layer 12.Positioning film layer 13
Area coverage is more than surface area of the metal foil 11 close to the surface of wrinkle resistant film layer 12.
It should be understood that when the area coverage of wrinkle resistant film layer 12 is less than the surface area of metal foil 12, positioning film layer 13 can also
It is to be covered on region and metal foil 11 that metal foil 11 is not covered by wrinkle resistant film layer 12；Or or wrinkle resistant film layer 12
It is located at same layer with positioning film layer 13, and positioning film layer 13 is only covered in the region that metal foil 11 is not covered by wrinkle resistant film layer 12,
And the edge of positioning film layer 13 exceeds the edge of metal foil 11.
Alternatively, three lateral edges of positioning film layer 13 exceed the edge of metal foil 11, and a lateral edges and metal foil 11
Edge flushes.
For example, as shown in figure 1, the top edge of positioning film layer 13 exceeds the top edge of metal foil 11；A left side for positioning film layer 13
Edge exceeds the left hand edge of metal foil 11；The right hand edge of positioning film layer 13 exceeds the right hand edge of metal foil 11；Positioning film layer 13
Lower edge flushes with the lower edge of metal foil 11.
Alternatively, adhesion is pasted less than wrinkle resistant film layer 12 and metal foil 11 between positioning film layer 13 and wrinkle resistant film layer 12
Between paste adhesion.In one embodiment, when positioning film layer 13 and wrinkle resistant film layer 12 use mould release membrance, positioning film layer
13 off-type force is less than the off-type force of wrinkle resistant film layer 12.
Protection film layer 14 is covered on the part that positioning film layer 13 exceeds the edge of metal foil 11, and protection film layer 14 is covered in and determined
Position film layer 13 is close to the surface of metal foil 11.Protection film layer 14 can also be not provided with other embodiments.
Refer to Fig. 3 and Fig. 4, Fig. 3 is the overlooking the structure diagram of the metal foil members of second embodiment of the invention, Fig. 4
It is the cross section structure diagram in metal foil members B-B directions along Fig. 3 of second embodiment of the invention.
In the present embodiment, metal foil members include metal foil 21, wrinkle resistant film layer 22, positioning film layer 23 and protection film layer
24。
Metal foil 21 can be copper foil or aluminium foil.It is appreciated that metal foil 21 can also use other metal materials.
Wrinkle resistant film layer 22 is covered in metal foil 21.Alternatively, wrinkle resistant film layer 22 can be pasted using easily peelable glue
In metal foil 21.For example, wrinkle resistant film layer 22 can use mould release membrance.
Alternatively, the area coverage of wrinkle resistant film layer 22 is equal to surface area of the metal foil 21 close to the surface of wrinkle resistant film layer 22.
It should be understood that the area coverage of wrinkle resistant film layer 22 might be less that the surface area of metal foil 22.
Positioning film layer 23 is separably attached in wrinkle resistant film layer 22 or metal foil 21, and the edge of positioning film layer 23 exceeds
The edge of metal foil 21.
As shown in figure 3, in the present embodiment, positioning film layer 23 and wrinkle resistant film layer 22 are located at same layer, positioning film layer 23 with
Connected between wrinkle resistant film layer 22 in a manner of partial cut, the area coverage sum of positioning film layer 23 and wrinkle resistant film layer 22 is more than gold
Belong to the surface area of paper tinsel 21.
Specifically, formed with grooving a between positioning film layer 23 and wrinkle resistant film layer 22, and grooving a is not completely by orientation film
Layer 23 is cut off with wrinkle resistant film layer 22, but remains with dowel b, passes through dowel b between positioning film layer 23 and wrinkle resistant film layer 22
Connection, dowel b quantity is two or more.So that positioning film layer 23 can discretely connect with wrinkle resistant film layer 22
It is connected in wrinkle resistant film layer 22.
Alternatively, between positioning film layer 23 and wrinkle resistant film layer 22 by dowel b attachment force be less than wrinkle resistant film layer 22 with
Adhesion is pasted between metal foil 21.
Alternatively, three lateral edges of positioning film layer 23 exceed the edge of metal foil 21.
For example, as shown in figure 3, the top edge of positioning film layer 23 exceeds the top edge of metal foil 21；A left side for positioning film layer 23
Edge exceeds the left hand edge of metal foil 21；The right hand edge of positioning film layer 23 exceeds the right hand edge of metal foil 21.
Protection film layer 24 is covered on the part that positioning film layer 23 exceeds the edge of metal foil 21, and protection film layer 24 is covered in and determined
Position film layer 23 is close to the surface of metal foil 21.Protection film layer 24 can also be not provided with other embodiments.
Referring to Fig. 5, Fig. 5 is the schematic flow sheet of the metal foil method for sticking and covering of first embodiment of the invention mobile terminal.
In the present embodiment, the metal foil method for sticking and covering of mobile terminal is used for the metal foil using first embodiment of the invention
Component carries out metal foil and pasted, and the metal foil method for sticking and covering of mobile terminal may comprise steps of：
Step 31：Positioning film layer is covered in affixed object or the object on affixed object periphery beyond the part of metal foil edge
On, while metal foil is covered on affixed object.
Wherein, can include before step 31：Sticky object is placed on the surface of the remotely located film layer 13 of metal foil 11 or
Person is placed on the surface of affixed object, and protection film layer 14 is peeled off from positioning film layer 13, so that positioning film layer 13 exceeds metal foil 11
The part at edge is exposed.Sticky object can be double faced adhesive tape, such as the one side of double faced adhesive tape is attached in metal foil 11 or will be two-sided
The one side of glue is attached on affixed object.In other embodiments, sticky object can also be the material of other bondings, for example, glue
Deng.
Step 31 can include：The region alignment that metal foil is pasted with needs, so that metal foil 11 can be complete when pasting
All standing needs the region pasted, and positioning film layer 13 is covered in into affixed object or affixed object beyond the part at the edge of metal foil 11
On the object on periphery, while metal foil 11 is covered on affixed object.Described in brought forward, metal foil 11 can be pasted using double faced adhesive tape
Overlay on affixed object.
Affixed object can be mobile terminal flexible PCB, or, affixed object can include flexible PCB and with it is soft
Property circuit board connection mobile terminal display screen chip.For example, it is desired to the region pasted includes the part of flexible PCB
Region where the chip of region and display screen.On the one hand, metal foil radiates to flexible PCB and chip, the opposing party
Face, the metal foil interference extraneous to flexible PCB and chip shield, and especially shield the dry of outer bound pair display screen chip
Disturb.
Step 32：Positioning film layer is peeled off from wrinkle resistant film layer.
Wherein, will after metal foil 11 to be covered on thing to be pasted to and is completely covered the region for needing to paste securely
Positioning film layer 13 separates from wrinkle resistant film layer 12 or metal foil 11.In the present embodiment, due to the positioning film layer of metal foil members
13 are covered in wrinkle resistant film layer 12, and after execution of step 32, positioning film layer 13 exceeds the part at the edge of metal foil 11
It is to be covered on thing to be pasted or the object on thing periphery to be pasted, therefore, the step 32 is from wrinkle resistant film layer by positioning film layer 13
12 peel off with thing to be pasted or periphery object.
Due between positioning film layer 13 and wrinkle resistant film layer 12 paste adhesion less than wrinkle resistant film layer 12 and metal foil 11 it
Between paste adhesion, when positioning film layer 13 is peeled off from wrinkle resistant film layer 12, wrinkle resistant film layer 12 will not be made to be peeled off from metal foil 11,
At the end of step 32, wrinkle resistant film layer 12 is still covered in metal foil 11.
Step 33：Carry out the processing procedure related to affixed object.
Wherein, carrying out the processing procedure related to affixed object includes：Position adjustment is carried out to flexible PCB.In mobile terminal
In processing procedure, inevitably the position of flexible PCB is changed, so as to beneficial to assembling, space layout etc..
And when being changed in the position to flexible PCB, the metal foil 11 for often making to be covered on flexible PCB produces pleat
Wrinkle, and now because wrinkle resistant film layer 12 is covered in metal foil 11, wrinkle resistant effect can be played to metal foil 11.Due to wrinkle resistant
The thickness of film layer 12 is more than the thickness of positioning film layer 11, can increase now metal by carrying out thickening design to wrinkle resistant film layer 12
The wrinkling resistance of paper tinsel 11.
Wherein, carrying out position adjustment to flexible PCB includes：The back of the body of display screen is abutted in after flexible PCB is bent
Optical mode group side.
Refer to front knot when Fig. 5 a and Fig. 5 b, Fig. 5 a are the flexible PCB expansion of mobile terminal of the embodiment of the present invention
Structure schematic diagram；Fig. 5 b are that flexible PCB bending reclines to the structure schematic diagram during display screen back side.Fig. 5 a are in flexibility
Circuit board 104 is not bent to schematic diagram during dorsal part, and flexible PCB 104 is in deployed condition.Under a kind of application scenarios, pin
Design for comprehensive screen of mobile terminal, screen accounting is high, and display screen 101 accounts for the mobile terminal front gross area more than 90%,
I.e. viewing area 101 accounts for more than the 90% of non-display area 102 and the summation of viewing area 101, the chip 103 of its display screen 101
Design in non-display area 10, flexible PCB 104 is connected with the chip 103, and the design shielded comprehensively causes non-display area
102 areas are minimum, and then result in the need for pasting the part of region 105 and the positive non-display area of mobile terminal of metal foil 11
102 are overlapped, and a part is overlapped on flexible PCB 104 and not with non-display area 102 (i.e. beyond the front of mobile terminal
The gross area), therefore when making it cling to backlight module side (i.e. the back side of display screen) bending of flexible PCB 104, gold
Category paper tinsel 11 easily produces fold.The backlight module side of display screen is the back side of display screen.
It should be understood that in other embodiments, carry out the processing procedure related to affixed object and be not limited to above-mentioned scene, it is any to move
It is likely to occur in the processing procedure of dynamic terminal so that affixed object drives the processing procedure of the generation fold of metal foil 11 to include being affixed object
In related processing procedure.
Step 34：After the processing procedure related to affixed object terminates, wrinkle resistant film layer is peeled off from metal foil.
Wherein, after the processing procedure related to affixed object terminates, it is not necessary to again to affixed object carry out position change or other
Processing, metal foil 11 is not easy to produce fold again, now peels off wrinkle resistant film layer 12 from metal foil 11, wrinkle resistant film layer during stripping
Adhesion, viscous pulling force or off-type force between 12 and metal foil 11 can also make caused fold elimination in step 33, make
Metal foil 11 recovers smooth.
Referring to Fig. 6, Fig. 6 is the schematic flow sheet of the metal foil method for sticking and covering of second embodiment of the invention mobile terminal.
In the present embodiment, the metal foil method for sticking and covering of mobile terminal is used for the metal foil using second embodiment of the invention
Component carries out metal foil and pasted, and the metal foil method for sticking and covering of mobile terminal may comprise steps of：
Step 41：Positioning film layer is covered in affixed object or the object on affixed object periphery beyond the part of metal foil edge
On, while metal foil is covered on affixed object.
Wherein, can include before step 41：Sticky object is placed on the surface of the remotely located film layer 23 of metal foil 21 or
Person is placed on the surface of affixed object, and protection film layer 24 is peeled off from positioning film layer 23, so that positioning film layer 23 exceeds metal foil 21
The part at edge is exposed.Sticky object can be double faced adhesive tape, such as the one side of double faced adhesive tape is attached in metal foil 21 or will be two-sided
The one side of glue is attached on affixed object.In other embodiments, sticky object can also be the material of other bondings, for example, glue
Deng.
Step 41 can include：The region alignment that metal foil 21 is pasted with needs, so that metal foil 21 can when pasting
The region for needing to paste is completely covered, positioning film layer 23 is covered in affixed object beyond the part at the edge of metal foil 21 or pasted
On the object on thing periphery, while metal foil 21 is covered on affixed object.Described in brought forward, double faced adhesive tape can be utilized by metal foil 21
It is covered on affixed object.
Affixed object can be mobile terminal flexible PCB, or, affixed object can include flexible PCB and with it is soft
Property circuit board connection mobile terminal display screen chip.For example, it is desired to the region pasted includes the part of flexible PCB
Region where the chip of region and display screen.On the one hand, metal foil radiates to flexible PCB and chip, the opposing party
Face, the metal foil interference extraneous to flexible PCB and chip shield, and especially shield the dry of outer bound pair display screen chip
Disturb.
Step 42：Positioning film layer is separated from the wrinkle resistant film layer that positioning film layer partial cut connects.
Wherein, will after metal foil 21 to be covered on thing to be pasted to and is completely covered the region for needing to paste securely
Positioning film layer 23 separates from wrinkle resistant film layer 22 or metal foil 21.In the present embodiment, due to the positioning film layer of metal foil members
23 be to be connected with wrinkle resistant film layer 22 by dowel b partial cuts, and after execution of step 42, positioning film layer 23 exceeds
The part at the edge of metal foil 11 is covered on thing to be pasted or the object on thing periphery to be pasted, and therefore, the step 42 is will be fixed
Position film layer 23 is from thing paste or the stripping of periphery object and by dowel b tear fractures.
Because the attachment force between positioning film layer 23 and wrinkle resistant film layer 22 by dowel b is less than wrinkle resistant film layer 22 and metal
Adhesion is pasted between paper tinsel 21, therefore, after dowel b tear fractures, wrinkle resistant film layer 22 is still covered in metal foil 21.
Step 33：Carry out the processing procedure related to affixed object.
Wherein, carrying out the processing procedure related to affixed object includes：Position adjustment is carried out to flexible PCB.In mobile terminal
In processing procedure, inevitably the position of flexible PCB is changed, so as to beneficial to assembling, space layout etc..
And when being changed in the position to flexible PCB, the metal foil 21 for often making to be covered on flexible PCB produces pleat
Wrinkle, and now because wrinkle resistant film layer 22 is covered in metal foil 21, wrinkle resistant effect can be played to metal foil 11.Due to wrinkle resistant
The thickness of film layer 12 is more than the thickness of positioning film layer 11, can increase now metal by carrying out thickening design to wrinkle resistant film layer 12
The wrinkling resistance of paper tinsel 11.
Wherein, carrying out position adjustment to flexible PCB includes：The back of the body of display screen is abutted in after flexible PCB is bent
Optical mode group side.
Under a kind of application scenarios, the design of comprehensive screen of mobile terminal is directed to, screen accounting is high, and display screen accounts for movement
Terminal front side is more than 90%, i.e., viewing area accounts for more than the 90% of non-display area and viewing area summation, the core of its display screen
Piece is designed in non-display area, and flexible PCB is connected with the chip, and the design shielded comprehensively causes non-display area area pole
It is small, and then the region part for resulting in the need for pasting metal foil is overlapped with the positive non-display area of mobile terminal (for covering
The chip of display screen), a part does not overlap (i.e. total beyond the front of mobile terminal on flexible PCB with non-display area
Area), therefore when making it cling to backlight module side (i.e. the back side of display screen) flexible PCB bending, metal foil 21
Easily produce fold.Referring specifically to described above, here is omitted.
Step 44：After the processing procedure related to affixed object terminates, wrinkle resistant film layer is peeled off from metal foil.
Wherein, after the processing procedure related to affixed object terminates, it is not necessary to again to affixed object carry out position change or other
Processing, metal foil 21 is not easy to produce fold again, now peels off wrinkle resistant film layer 22 from metal foil 21, wrinkle resistant film layer during stripping
Adhesion, viscous pulling force or off-type force between 22 and metal foil 21 can also make caused fold elimination at step 43, make
Metal foil 21 recovers smooth.
The embodiment of the present invention is by setting metal foil members to include metal foil, wrinkle resistant film layer and positioning film layer, wrinkle resistant film layer
Paste on metal foil, positioning film layer is separably attached in wrinkle resistant film layer or metal foil, and the edge of positioning film layer exceeds
The edge of metal foil, after the processing procedure related to affixed object terminates, wrinkle resistant film layer is peeled off from metal foil, so as to avoid gold
There is fold in category paper tinsel, lifts the product yield of mobile terminal.
Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this
The equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, it is included within the scope of the present invention.
Claims (10)
1. a kind of metal foil members, it is characterised in that the metal foil members include：
Metal foil；
Wrinkle resistant film layer, it is covered in the metal foil；
Positioning film layer, it is separably attached in the wrinkle resistant film layer or the metal foil, the edge of the positioning film layer surpasses
Go out the edge of the metal foil.
2. metal foil members according to claim 1, it is characterised in that the positioning film layer is covered in the wrinkle resistant film layer
On, and the area coverage of the positioning film layer is more than the surface area of the metal foil.
3. metal foil members according to claim 2, it is characterised in that between the positioning film layer and the wrinkle resistant film layer
Paste adhesion be less than paste adhesion between the wrinkle resistant film layer and the metal foil.
4. metal foil members according to claim 1, it is characterised in that the positioning film layer and the wrinkle resistant film layer are located at
Same layer, connected between the positioning film layer and the wrinkle resistant film layer in a manner of partial cut, the positioning film layer and described
The area coverage sum of wrinkle resistant film layer is more than the surface area of the metal foil.
5. metal foil members according to claim 1, it is characterised in that the thickness of the wrinkle resistant film layer is more than the positioning
The thickness of film layer.
6. metal foil members according to claim 1, it is characterised in that the area coverage of the wrinkle resistant film layer is equal to described
The surface area of metal foil.
7. metal foil members according to claim 1, it is characterised in that the metal foil is copper foil or aluminium foil.
8. a kind of metal foil method for sticking and covering of mobile terminal, pasted for carrying out metal foil using metal foil members, its feature exists
In,
The metal foil members include：
Metal foil；
Wrinkle resistant film layer, it is covered in the metal foil；
Positioning film layer, it is separably attached in the wrinkle resistant film layer or the metal foil, the edge of the positioning film layer surpasses
Go out the edge of the metal foil；
The metal foil method for sticking and covering includes：
The positioning film layer is covered in affixed object or the thing on the affixed object periphery beyond the part of the metal foil edge
On body, while the metal foil is covered on the affixed object；
The positioning film layer is separated from the wrinkle resistant film layer or the metal foil；
Carry out the processing procedure related to the affixed object；
After the processing procedure related to the affixed object terminates, the wrinkle resistant film layer is peeled off from the metal foil.
9. metal foil method for sticking and covering according to claim 8, it is characterised in that the affixed object is the mobile terminal
Flexible PCB, or, the affixed object includes the flexible PCB and the mobile terminal being connected with the flexible PCB
Display screen chip, it is described to carry out the processing procedure related to the affixed object and include：
Position adjustment is carried out to the flexible PCB.
10. metal foil method for sticking and covering according to claim 9, it is characterised in that described to be carried out to the flexible PCB
Position adjustment includes：
The backlight module side of the display screen is abutted in after the flexible PCB is bent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711012079.XA CN107660108A (en) | 2017-10-25 | 2017-10-25 | The metal foil method for sticking and covering of metal foil members and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711012079.XA CN107660108A (en) | 2017-10-25 | 2017-10-25 | The metal foil method for sticking and covering of metal foil members and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107660108A true CN107660108A (en) | 2018-02-02 |
Family
ID=61119216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711012079.XA Pending CN107660108A (en) | 2017-10-25 | 2017-10-25 | The metal foil method for sticking and covering of metal foil members and mobile terminal |
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| CN (1) | CN107660108A (en) |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Applicant after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Applicant before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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Effective date of abandoning: 20240628 |