CN111218232B - Composite film and manufacturing method thereof - Google Patents
Composite film and manufacturing method thereof Download PDFInfo
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- CN111218232B CN111218232B CN202010032901.4A CN202010032901A CN111218232B CN 111218232 B CN111218232 B CN 111218232B CN 202010032901 A CN202010032901 A CN 202010032901A CN 111218232 B CN111218232 B CN 111218232B
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- Prior art keywords
- gummed paper
- insulating
- composite film
- insulating gummed
- semi
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- 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
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/163—Metal in the substrate
Abstract
The invention discloses a composite film and a manufacturing method thereof, wherein the method comprises the following steps: providing a film material as a base material; providing first insulating gummed paper, attaching the first insulating gummed paper to the base material to form a semi-finished product of a composite film, and cutting and discharging waste of the first insulating gummed paper; providing second insulating gummed paper, attaching the second insulating gummed paper on the composite film semi-finished product and covering the first insulating gummed paper, and cutting and discharging waste of the second insulating gummed paper; and providing a conducting layer, attaching the conducting layer to the semi-finished product of the composite film, covering the first insulating gummed paper and the second insulating gummed paper, cutting the conducting layer, and removing the redundant conducting layer to form the composite film. The invention only needs to attach the two kinds of insulating gummed paper and the conductive cloth once when attaching the liquid crystal display module, thereby being beneficial to improving the attaching efficiency, improving the product yield and reducing the cost.
Description
Technical Field
The invention relates to the technical field of liquid crystal display modules, in particular to a composite film and a manufacturing method thereof.
Background
Referring to fig. 1, in the lcd module, the positions of the components on the IC and the FPC are respectively provided with insulating glues 1 and 2 made of different materials, and a conductive cloth or a conductive copper foil 3 is attached on the two pieces of insulating glue paper. In the prior art, the insulating gummed paper and the conductive cloth are produced separately, and when a liquid crystal display module is produced subsequently, the insulating gummed paper is firstly pasted on a drive IC, then the corresponding insulating gummed paper is pasted on a component of an FPC, and finally the conductive cloth or the conductive copper foil is pasted, so that the whole process is complicated.
Accordingly, the prior art is deficient and needs improvement.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a composite film and a manufacturing method thereof.
The technical scheme of the invention is as follows: the invention provides a method for manufacturing a composite film, which comprises the following steps: step 1: providing a film material as a base material; step 2: providing first insulating gummed paper, attaching the first insulating gummed paper to the base material to form a semi-finished composite film product, cutting the first insulating gummed paper, and removing redundant first insulating gummed paper from the semi-finished composite film product; and step 3: providing second insulating gummed paper, attaching the second insulating gummed paper on the semi-finished product of the composite film and covering the first insulating gummed paper, cutting the second insulating gummed paper, and removing redundant second insulating gummed paper from the semi-finished product of the composite film; and 4, step 4: providing a conducting layer, attaching the conducting layer to the semi-finished product of the composite film, covering the first insulating gummed paper and the second insulating gummed paper, cutting the conducting layer, and removing the redundant conducting layer to form the composite film; the adhesive force between the conductive layer and the first and second insulating gummed papers is larger than the adhesive force between the corresponding first and second insulating gummed papers and the base material.
Further, a protective film is arranged on the upper surface of the first insulating gummed paper in the step 2, and in the step 3, when the redundant part of the second insulating gummed paper is removed from the composite film semi-finished product, the protective film is removed from the first insulating gummed paper so as to ensure that the first insulating gummed paper remains on the base material.
Furthermore, one of the first insulating adhesive tape and the second insulating adhesive tape is used for being attached to a drive IC of the liquid crystal display module, and the other one of the first insulating adhesive tape and the second insulating adhesive tape is used for being attached to a component on an FPC (flexible printed circuit) in the liquid crystal display module.
Further, the conducting layer is conducting cloth or conducting copper foil.
Further, the manufacturing method further comprises the step 5: the composite film is cut into individual sheets.
Or, the manufacturing method further comprises the step 5: and preparing the composite film into a coiled material.
Further, the surface of one side of the substrate facing the first insulating adhesive tape is coated with a release agent.
Further, in the step 2 to the step 4, when the first insulating adhesive tape, the second insulating adhesive tape and the conductive layer are attached, the first insulating adhesive tape, the second insulating adhesive tape and the conductive layer are respectively adsorbed by the vacuum chuck, two corners of the same side of the first insulating adhesive tape, the second insulating adhesive tape and the conductive layer and corresponding positions of the substrate are respectively grabbed by using a CCD alignment device to be aligned, and the first insulating adhesive tape, the second insulating adhesive tape and the conductive layer are rolled from one side of the alignment to the other side by using a roller when the first insulating adhesive tape, the second insulating adhesive tape and the conductive layer are attached.
Further, in the step 2 to the step 4, when the first insulating gummed paper, the second insulating gummed paper and the conductive layer are cut, the first insulating gummed paper, the second insulating gummed paper and the conductive layer are densely punched by enabling a cutting needle to move along a set track, so that cutting is realized.
The invention also provides a composite film, which is prepared by the preparation method.
By adopting the scheme, the two types of insulating gummed paper and the conductive cloth are attached to the liquid crystal display module only once, so that the attachment efficiency is improved, the product yield is improved, and the cost is reduced.
Drawings
Fig. 1 is a schematic structural view of a conventional liquid crystal module after attachment.
FIG. 2 is a flow chart of a method of making a composite membrane of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 2, the present invention provides a method for manufacturing a composite film, including the following steps: step 1: providing a film material as a base material, wherein the film material can be a PET film material or a film material made of other materials as long as the required functions of the application can be realized; step 2: providing first insulating gummed paper, attaching the first insulating gummed paper to the base material to form a composite film semi-finished product, cutting the first insulating gummed paper, and removing redundant first insulating gummed paper from the composite film semi-finished product; and step 3: providing second insulating gummed paper, attaching the second insulating gummed paper on the semi-finished product of the composite film and covering the first insulating gummed paper, cutting the second insulating gummed paper, and removing redundant second insulating gummed paper from the semi-finished product of the composite film; and 4, step 4: providing a conducting layer, attaching the conducting layer to the semi-finished product of the composite film, covering the first insulating gummed paper and the second insulating gummed paper, cutting the conducting layer, and removing the redundant conducting layer to form the composite film; the adhesive force between the conductive layer and the first and second insulating gummed papers is larger than the adhesive force between the corresponding first and second insulating gummed papers and the base material, so that when the conductive layer is separated from the base material, the first and second insulating gummed papers are also separated from the base material and are adhered on the conductive layer, thereby being beneficial to subsequent use.
In this embodiment, in order to prevent the first insulating gummed paper from being torn off together when the second insulating gummed paper is removed, in the step 2, a protective film is disposed on the surface of the first insulating gummed paper, and in the step 3, when the excess portion of the second insulating gummed paper is removed from the composite film semi-finished product, the protective film is removed from the first insulating gummed paper to ensure that the first insulating gummed paper remains on the base material. In the first insulating gummed paper and the second insulating gummed paper, one is used for attaching in the drive IC department of liquid crystal display module assembly, and another is used for attaching in the components and parts department on the FPC in the liquid crystal display module assembly, in this embodiment the first insulating gummed paper is used for attaching with the drive IC department of liquid crystal display module assembly, the second insulating gummed paper is used for attaching with the components and parts department on the FPC. The conducting layer is conducting cloth or conducting copper foil. In order to realize the conducting layer is followed during the separation on the substrate, first insulating adhesive tape and second insulating adhesive tape also can with the substrate separation and paste on the conducting layer, make things convenient for follow-up disposable attached, the substrate towards the surface coating of the one side of first insulating adhesive tape, second insulating adhesive tape has the release agent, the release agent can be silicone oil, can make things convenient for first insulating adhesive tape, second insulating adhesive tape and electrically conductive cloth follow separate on the substrate.
The scheme also comprises the following step 5: will the complex film cuts into monolithic sheet or makes the coiled material, cuts into monolithic sheet and can make things convenient for the attached use of manual, makes into the coiled material and can make things convenient for the attached use of machine.
In the steps 2 to 4, when the first insulating gummed paper, the second insulating gummed paper and the conductive layer are cut, the base material is not cut by a cutting die with a specific shape under the condition of controlling corresponding force, and only the first insulating gummed paper, the second insulating gummed paper and the conductive layer attached to the base material are cut; or the cutting needle can be moved along a predetermined track, so that the first insulating gummed paper, the second insulating gummed paper and the conductive layer are densely punched, the base material is not cut, and only the first insulating gummed paper, the second insulating gummed paper and the conductive layer attached to the base material are cut. In addition, in step 2 to step 4, when attaching first insulation adhesive tape, second insulation adhesive tape, conducting layer, can be right respectively through vacuum chuck first insulation adhesive tape, second insulation adhesive tape, conducting layer adsorb, through using CCD counterpoint equipment, snatch respectively two corners of first insulation adhesive tape, second insulation adhesive tape, conducting layer homonymy with the corresponding position of substrate is counterpointed, and use the cylinder to follow when attaching one side of counterpointing of first insulation adhesive tape, second insulation adhesive tape, conducting layer rolls towards the other side, realizes counterpoint and attaching to can avoid producing the bubble when attaching through the cylinder.
The scheme also provides a composite film, the composite film is prepared by the method, and the composite film is used for a liquid crystal display module. The complex film in this scheme only needs attached once can realize attaching electrically conductive cloth, two kinds of insulating adhesive tapes on liquid crystal display module to when attaching toward liquid crystal display module, can obviously promote production efficiency to reduce because of the bad that attached problem caused, promote product yield and reduce cost.
In summary, the invention only needs to attach two kinds of insulating gummed paper and conductive cloth once when attaching the liquid crystal display module, which is helpful for improving the attaching efficiency, improving the product yield and reducing the cost.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A method for manufacturing a composite film is characterized by comprising the following steps:
step 1: providing a film material as a base material;
step 2: providing first insulating gummed paper, attaching the first insulating gummed paper to the base material to form a semi-finished composite film product, cutting the first insulating gummed paper, and removing redundant first insulating gummed paper from the semi-finished composite film product;
and step 3: providing second insulating gummed paper, attaching the second insulating gummed paper on the semi-finished product of the composite film and covering the first insulating gummed paper, cutting the second insulating gummed paper, and removing redundant second insulating gummed paper from the semi-finished product of the composite film;
and 4, step 4: providing a conducting layer, attaching the conducting layer to the semi-finished product of the composite film, covering the first insulating gummed paper and the second insulating gummed paper, cutting the conducting layer, and removing the redundant conducting layer to form the composite film;
the adhesive force between the conductive layer and the first and second insulating gummed papers is larger than the adhesive force between the corresponding first and second insulating gummed papers and the base material;
in step 3, when the excess portion of the second insulating gummed paper is removed from the composite film semi-finished product, the protective film is removed from the first insulating gummed paper to ensure that the first insulating gummed paper remains on the base material.
2. The method for manufacturing the composite film according to claim 1, wherein one of the first and second insulating adhesive tapes is used for being attached to a driver IC of the liquid crystal display module, and the other one of the first and second insulating adhesive tapes is used for being attached to a component on the FPC in the liquid crystal display module.
3. The method of claim 2, wherein the conductive layer is a conductive cloth or a conductive copper foil.
4. A method of making a composite membrane according to claim 1, further comprising the step of 5: the composite film is cut into individual sheets.
5. A method of making a composite membrane according to claim 1, further comprising the step of 5: and preparing the composite film into a coiled material.
6. The method for manufacturing the composite film according to claim 1, wherein a surface of a side of the substrate facing the first adhesive paper is coated with a release agent.
7. The method of claim 1, wherein in the steps 2 to 4, when the first, second and conductive layers are attached, the first, second and conductive layers are respectively adsorbed by vacuum suction cups, and the two corners of the same side of the first, second and conductive layers are respectively grabbed by a CCD alignment device and aligned with the corresponding positions of the substrate, and are rolled from the aligned side of the first, second and conductive layers to the other side by a roller during the attachment.
8. The method for manufacturing a composite film according to claim 1, wherein in the steps 2 to 4, when the first, second and conductive layers are cut, the cutting pin is moved along a predetermined track to densely perforate the first, second and conductive layers, thereby achieving cutting.
9. A composite membrane produced by the method of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032901.4A CN111218232B (en) | 2020-01-13 | 2020-01-13 | Composite film and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032901.4A CN111218232B (en) | 2020-01-13 | 2020-01-13 | Composite film and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111218232A CN111218232A (en) | 2020-06-02 |
| CN111218232B true CN111218232B (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010032901.4A Active CN111218232B (en) | 2020-01-13 | 2020-01-13 | Composite film and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN111218232B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206768003U (en) * | 2017-03-13 | 2017-12-19 | 深圳市立德通讯器材有限公司 | A kind of compound radiation conductive adhesive plaster |
| CN209412133U (en) * | 2018-10-24 | 2019-09-20 | 苏州益邦电子材料有限公司 | Local conducting type insulating tape |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7812260B2 (en) * | 2007-09-25 | 2010-10-12 | Siemens Energy, Inc. | Electrical insulation tape with controlled bonding and resin impregnation properties |
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2020
- 2020-01-13 CN CN202010032901.4A patent/CN111218232B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206768003U (en) * | 2017-03-13 | 2017-12-19 | 深圳市立德通讯器材有限公司 | A kind of compound radiation conductive adhesive plaster |
| CN209412133U (en) * | 2018-10-24 | 2019-09-20 | 苏州益邦电子材料有限公司 | Local conducting type insulating tape |
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| Publication number | Publication date |
|---|---|
| CN111218232A (en) | 2020-06-02 |
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