CN216584862U - Novel prevent buckling and rise copper foil composite membrane structure of separation - Google Patents
Novel prevent buckling and rise copper foil composite membrane structure of separation Download PDFInfo
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- CN216584862U CN216584862U CN202220025831.4U CN202220025831U CN216584862U CN 216584862 U CN216584862 U CN 216584862U CN 202220025831 U CN202220025831 U CN 202220025831U CN 216584862 U CN216584862 U CN 216584862U
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Abstract
The utility model discloses a novel prevent copper foil composite membrane structure of separation of upwarping of buckling, this composite membrane structure aim at solving prior art down the insulating single face sticky tape viscidity of black is not high, and black insulating sticky tape and FPC are difficult to paste to the technical problem of the border of copper foil composite membrane because of buckling bounce and FPC separation appears easily. The composite film structure comprises an FPC, wherein a copper foil composite film is connected to the upper end of the FPC in a sticking mode, the copper foil composite film comprises a copper foil, a black insulating single-sided adhesive tape and a dust separation film, the lower end of the black insulating single-sided adhesive tape is connected with the copper foil in a bonding mode, the dust separation film is installed at the lower end of the copper foil, and a pressure maintaining jig pressure head is movably connected to the upper end of the copper foil composite film. This complex film structure utilizes to increase black insulating single-sided sticky tape thickness, and the border is difficult to upwarp, and through increasing black insulating single-sided sticky tape and FPC's the width of pasting, the condition that very big degree improves the border upwarp utilizes to press the tool pressure head to add to paste the cotton pad of soft bubble, promotes liquid crystal display module production yield.
Description
Technical Field
The utility model belongs to copper foil composite film field, concretely relates to novel prevent copper foil composite film structure of separation of upwarping of buckling.
Background
In order to solve radio frequency interference, the conventional liquid crystal display module is characterized in that after an FOG assembly (the FOG assembly comprises an LCD, an upper polarizer, a lower polarizer, an IC and an FPC) is assembled, a copper foil composite film is attached to the FPC in a flattening state, the whole FPC bending area is basically covered by the copper foil composite film, and then after the FOG and a backlight assembly are assembled, the FPC and the copper foil composite film which is attached to the FPC are bent and adhered to a back iron frame of the backlight assembly at 180 degrees.
At present, the composition structure of the existing copper foil composite film product is as follows: black insulating single-sided tape + copper foil + dust-removing film. The internal structure of the black insulating single-sided adhesive tape is as follows: PET substrate + ya keli glue layer, the inner structure of copper foil is: copper foil layer + conductive adhesive layer. The black insulating single-sided adhesive tape acrylic glue layer is adhered to the glue-free surface of the copper foil layer, and the conductive glue layer of the copper foil is adhered to the FPC subsequently, so that the surface of the copper foil is provided with the dust separation film. Because the liquid crystal module industry is pursuing frivolousness at present, space restriction leads to the copper foil thickness at present to be about 0.03mm basically, and the black insulating single face that allows to paste is only about 0.01mm basically, so copper foil and black insulating tape are very thin material, and it adopts to bond the copper foil complex film through pressing the regional mode to paste according to the manual work, but this copper foil complex film if not obtaining effective pressing, can appear the copper foil complex film especially its border region and paste FPC surface or paste insecure condition in fact.
Therefore, in order to solve the problem that the copper foil composite film is difficult to adhere and easy to warp after use, it is necessary to improve the use scene of the composite film structure.
SUMMERY OF THE UTILITY MODEL
(1) Technical problem to be solved
Not enough to prior art, the utility model aims to provide a novel prevent buckling and rise copper foil composite membrane structure of separation, this composite membrane structure aims at solving prior art down the insulating single face sticky tape viscidity of black is not high, and black insulating sticky tape and FPC are hardly pasted to the technical problem of copper foil composite membrane's border because of buckling bounce and FPC separation appears easily.
(2) Technical scheme
In order to solve the technical problem, the utility model provides a such novel prevent buckling copper foil composite membrane structure of separation of upwarping, this composite membrane structure include FPC, FPC upper end is pasted and is connected with the copper foil complex film, the copper foil complex film includes copper foil, black insulating single face sticky tape and leaves the dirt membrane, black insulating single face sticky tape lower extreme adhesive connection has the copper foil, the dust membrane is installed from to the copper foil lower extreme, copper foil complex film upper end swing joint has pressurize smelting tool pressure head, wherein, the copper foil includes copper foil layer and conductive adhesive layer, swing joint between copper foil layer and the conductive adhesive layer, black insulating single face sticky tape includes PET substrate and ya keli glue layer, swing joint between PET substrate and the ya keli glue layer.
When the composite film structure of the technical scheme is used, firstly, an acrylic glue layer of a black insulating single-sided adhesive tape is adhered to a glue-free surface of a copper foil layer, then a dust-separating film is installed on a conductive glue layer of a copper foil, a copper foil composite film is adhered to an FPC in a flattening state, a pressure maintaining jig pressure head is used for pressing, the pressure maintaining time is kept for 3S, the copper foil composite film basically covers the whole FPC bending area, then after FOG and a backlight module are assembled, the FPC and the copper foil composite film adhered to the FPC are bent and adhered to a back iron frame of the backlight module together for 180 degrees, and the problem that a liquid crystal display module is interfered by radio frequency can be solved.
Preferably, the coating thickness of the acrylic glue layer is 0.009 mm. The adhesive force of the black insulating single-sided adhesive tape is effectively improved.
Preferably, the adhesive force of the black insulating single-sided tape is 600kg/25 mm. The adhesive force of the adhesive tape is greatly improved.
Preferably, the external dimension of the periphery of the black insulating single-sided tape exceeding the copper foil is 1.0mm, and the width of the black insulating single-sided tape adhered to the FPC is 1.0 mm. The edges are less prone to warping.
Preferably, pressurize smelting tool pressure head pressurize pressure is 0.15Mpa, pressurize smelting tool pressure head pressurize time is 3S, pressurize smelting tool pressure head lower extreme swing joint has the cotton pad of soft bubble. The phenomenon of separation abnormality caused by the insecure surface pasting of the copper foil composite film and the FPC is avoided, and the production yield of the liquid crystal display module is improved.
Preferably, the PET substrate is 0.003mm thick. Meets the national standard and is convenient to purchase.
(3) Advantageous effects
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a complex film structure utilizes and increases black insulating single face sticky tape thickness, promote the adhesive force from 400kg 25mm to 600kg 25mm, the adhesive force has been improved, the border is difficult to rise to stick up, through increasing black insulating single face sticky tape and FPC's the width of pasting, the adhesive force is 2 times because the width increases, the adhesive force also can increase to 2 times, the condition that very big degree improves the border and rises to stick up, utilize to press the tool pressure head to paste soft bubble cotton pad, so that can extrusion deformation during the pressurize, make 0.03mm break that appears because of middle copper foil intermediate layer thickness between upper black insulating single face sticky tape and the FPC can be eaten, and then make upper black insulating single face sticky tape buckling deformation attach to FPC, can not have because of copper foil complex film and FPC surface paste insecure separation anomaly, promote liquid crystal display module production yield.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a copper foil composite film attached to a FPC according to a specific embodiment of the composite film structure of the present invention;
FIG. 2 is a schematic diagram of a front side structure of a copper foil composite film according to an embodiment of the composite film structure of the present invention;
FIG. 3 is a schematic side view of a copper foil composite film according to one embodiment of the composite film structure of the present invention;
fig. 4 is a schematic cross-sectional structure diagram of the composite membrane structure of the present invention during pressure maintaining in one embodiment.
The labels in the figures are: 1. FPC; 2. a copper foil composite film; 3. copper foil; 4. a copper foil layer; 5. a conductive adhesive layer; 6. a black insulating single-sided tape; 7. a PET substrate; 8. an acrylic glue layer; 9. a dust separation film; 10. pressure maintaining of a pressure head of the smelting tool; 11. a soft foam pad.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following description is made for the technical solution of the present invention in the embodiments to explain the present invention clearly and completely, obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments.
Example 1
Referring to fig. 1-3, the composite film structure includes an FPC1, a copper foil composite film 2 is bonded to an upper end of an FPC1, the copper foil composite film 2 includes a copper foil 3, a black insulating single-sided tape 6 and a dust-separating film 9, the lower end of the black insulating single-sided tape 6 is bonded to the copper foil 3, the dust-separating film 9 is mounted at the lower end of the copper foil 3, a pressure-maintaining jig pressing head 10 is movably connected to an upper end of the copper foil composite film 2, the copper foil 3 includes a copper foil layer 4 and a conductive adhesive layer 5, the copper foil layer 4 is movably connected to the conductive adhesive layer 5, the black insulating single-sided tape 6 includes a PET substrate 7 and an acrylic glue layer 8, and the PET substrate 7 is movably connected to the acrylic glue layer 8.
Example 2
Referring to fig. 1-4, the composite film structure includes an FPC1, a copper foil composite film 2 is bonded to an upper end of an FPC1, the copper foil composite film 2 includes a copper foil 3, a black insulating single-sided tape 6 and a dust-separating film 9, the lower end of the black insulating single-sided tape 6 is bonded to the copper foil 3, the dust-separating film 9 is mounted at the lower end of the copper foil 3, a pressure-maintaining jig pressing head 10 is movably connected to an upper end of the copper foil composite film 2, the copper foil 3 includes a copper foil layer 4 and a conductive adhesive layer 5, the copper foil layer 4 is movably connected to the conductive adhesive layer 5, the black insulating single-sided tape 6 includes a PET substrate 7 and an acrylic glue layer 8, and the PET substrate 7 is movably connected to the acrylic glue layer 8.
The coating thickness of the acrylic glue layer 8 is 0.009mm, the adhesive force of the black insulating single-sided tape is effectively improved, the adhesive force of the black insulating single-sided tape 6 is 600kg/25mm, the adhesive force of the tape is greatly improved, the overall dimension of the black insulating single-sided tape 6, which exceeds the copper foil 3, is 1.0mm, the width of the black insulating single-sided tape 6, which is adhered to the FPC1, is 1.0mm, the edge is ensured not to easily warp, the copper foil composite film 2 and the FPC1 are pressed by a special adhesive pressing jig, the pressure maintaining pressure of the pressure maintaining jig pressure head 10 is 0.15MPa, the pressure maintaining time of the pressure maintaining jig pressure head 10 is 3S, the lower end of the pressure maintaining jig pressure head 10 is movably connected with a soft foam pad 11, the thickness of the PET substrate 7 is 0.003mm, the separation abnormality caused by the insecure surface adhesion of the copper foil composite film and the FPC is avoided, and the production yield of the liquid crystal display module is improved.
When the composite film structure of the technical scheme is used, firstly, the acrylic glue layer 8 of the black insulating single-sided adhesive tape 6 is adhered to the glue-free surface of the copper foil layer 4, then the dust-free film 9 is installed on the conductive glue layer 5 of the copper foil 3, one copper foil composite film 2 is attached to the FPC1 in the flattening state and pressed by the pressure maintaining jig pressure head 10, the pressure maintaining time is kept for 3S, and the copper foil composite film 2 basically covers the whole FPC1 bending area. Then after the FOG and the backlight module are assembled, the FPC1 and the copper foil composite film 2 stuck on the FPC are bent and stuck to the back iron frame of the backlight module by 180 degrees together, so that the problem of radio frequency interference of the liquid crystal display module can be solved.
Having thus described the principal technical features and basic principles of the invention, and the advantages thereof, it will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description is described in terms of various embodiments, not every embodiment includes only a single embodiment, and such descriptions are provided for clarity only, and those skilled in the art will recognize that the embodiments described herein can be combined as a whole to form other embodiments as would be understood by those skilled in the art.
Claims (6)
1. A novel copper foil composite film structure capable of preventing bending and upwarping separation comprises an FPC (1), wherein a copper foil composite film (2) is connected to the upper end of the FPC (1) in a sticking mode, the copper foil composite film (2) comprises a copper foil (3), a black insulating single-sided adhesive tape (6) and a dust-separating film (9), the lower end of the black insulating single-sided adhesive tape (6) is connected with the copper foil (3) in a bonding mode, the dust-separating film (9) is installed at the lower end of the copper foil (3), and a pressure-maintaining jig pressure head (10) is movably connected to the upper end of the copper foil composite film (2); the black insulation single-sided adhesive tape is characterized in that the copper foil (3) comprises a copper foil layer (4) and a conductive adhesive layer (5), the copper foil layer (4) is movably connected with the conductive adhesive layer (5), the black insulation single-sided adhesive tape (6) comprises a PET substrate (7) and an acrylic glue layer (8), and the PET substrate (7) is movably connected with the acrylic glue layer (8).
2. The novel bending and warping separation preventing copper foil composite film structure as claimed in claim 1, wherein the coating thickness of the acrylic glue layer (8) is 0.009 mm.
3. The novel bending and warping separation preventing copper foil composite film structure as claimed in claim 1, wherein the adhesive force of the black insulating single-sided tape (6) is 600kg/25 mm.
4. The novel bending and warping separation preventing copper foil composite film structure as claimed in claim 1, wherein the peripheral of the black insulating single-sided tape (6) exceeds the outer dimension of the copper foil (3) by 1.0mm, and the width of the black insulating single-sided tape (6) adhered to the FPC (1) is 1.0 mm.
5. The novel bending and warping separation preventing copper foil composite film structure as claimed in claim 1, wherein the pressure maintaining pressure of the pressure maintaining tool head (10) is 0.15Mpa, the pressure maintaining time of the pressure maintaining tool head (10) is 3S, and a soft foam pad (11) is movably connected to the lower end of the pressure maintaining tool head (10).
6. The novel bending and warping separation preventing copper foil composite film structure as claimed in claim 1, wherein the PET substrate (7) is 0.003mm thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220025831.4U CN216584862U (en) | 2022-01-05 | 2022-01-05 | Novel prevent buckling and rise copper foil composite membrane structure of separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220025831.4U CN216584862U (en) | 2022-01-05 | 2022-01-05 | Novel prevent buckling and rise copper foil composite membrane structure of separation |
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| CN216584862U true CN216584862U (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220025831.4U Active CN216584862U (en) | 2022-01-05 | 2022-01-05 | Novel prevent buckling and rise copper foil composite membrane structure of separation |
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| CN (1) | CN216584862U (en) |
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- 2022-01-05 CN CN202220025831.4U patent/CN216584862U/en active Active
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