CN107621913A - A kind of touch control film and preparation method thereof - Google Patents
A kind of touch control film and preparation method thereof Download PDFInfo
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- CN107621913A CN107621913A CN201710832227.6A CN201710832227A CN107621913A CN 107621913 A CN107621913 A CN 107621913A CN 201710832227 A CN201710832227 A CN 201710832227A CN 107621913 A CN107621913 A CN 107621913A
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Abstract
The invention provides a kind of touch control film and preparation method thereof, including：A conducting film is provided, the conducting film includes the first relative face, the second face and via；Wherein, there is at least one first touch control electrode in the first face of the conducting film；At least one first signal wire is formed in the second face of the conducting film, and each first touch control electrode is electrically connected with correspondingly by via and each first signal wire.The invention also discloses corresponding touch control film.
Description
Technical field
The present invention relates to display technology field, in particular to a kind of touch control film and preparation method thereof.
Background technology
At present, capacitive touch screen mainly has two-sided cured film, optical adjustment layer and indium tin oxide (ITO) conducting film,
Indium in ITO conducting films belongs to rare metal, and the reserves in the earth are very rare, once such rare metal has used
Finish, it will the development to human society causes the problem of serious.
At present, when double-sided conductive film is made into touch-screen, it is necessary to which two-sided induction channels and two-sided lead channels are, it is necessary to right
The two sides of conducting film carries out pattern etching, printing silver paste circuit.When the one side of conducting film machines, the progress back side processes work
During skill, front lead is squeezed in driving face, can influence the lead of positive process, causes circuit breaking etc. bad.Conducting film needs
Laser treatment twice is carried out, it is necessary to ensure that front and back laser can not overlap when carrying out laser treatment, is entering line lead print
, it is necessary to be printed using the higher composite halftone of price, cost is higher during brush.
The content of the invention
In view of this, it is an object of the invention to provide a kind of touch control film and preparation method thereof, for solving prior art
In the problem of lead channels can not be arranged on to conducting film one side.
In a first aspect, the embodiment of the present invention provides a kind of preparation method of touch control film, including：
A conducting film is provided, the conducting film includes the first relative face, the second face and via；
Wherein, there is at least one first touch control electrode in the first face of the conducting film；
At least one first signal wire is formed in the second face of the conducting film, and leads to each first touch control electrode
Via is electrically connected with correspondingly with each first signal wire.
Alternatively, there is at least one second touch control electrode in the second face of the conducting film；
Methods described also includes：At least one secondary signal line is formed in the second face of the conducting film, and makes each institute
Second touch control electrode is stated to be electrically connected with correspondingly with each secondary signal line.
Alternatively, it is described to form at least one first signal wire in the second face of the conducting film, and make each described
One touch control electrode is electrically connected with correspondingly by via and each first signal wire, including：
The hole site of crossing in the first face of the conducting film forms silver paste block respectively, silver paste block with it is respective right
First touch control electrode conducting answered；
The first silver slurry layer is formed in the second face of conducting film position corresponding with silver paste block；
At least one first signal wire, first signal wire and corresponding silver are formed on first silver slurry layer
Lumps turns on through the via.
Alternatively, the via is formed in the end of corresponding first touch control electrode.
Alternatively, before the second face of the conducting film forms at least one first signal wire, in addition to：
The via through the conducting film is formed in the first touch control electrode end in the first face of the conducting film.
Alternatively, the technique for forming the secondary signal line, including：
Second silver slurry layer is formed at the second touch control electrode in the second face of the conducting film using typography；
Second silver slurry layer is handled to obtain secondary signal line using laser technology.
Alternatively, the technique for forming first signal wire, including：
First silver slurry layer is formed at the via in the second face of the conducting film using typography；
First silver slurry layer is handled to obtain the first signal wire using laser technology.
Second aspect, the embodiment of the present invention provide a kind of touch control film, including：Conducting film, the conducting film include relative
First face, the second face and via；
Wherein, there is at least one first touch control electrode in the first face of the conducting film；
At least one first signal wire in the face of conducting film second is arranged at, wherein, each first touch control electrode
It is electrically connected with correspondingly by via and each first signal wire.
Alternatively, there is at least one second touch control electrode in the second face of the conducting film；
At least one secondary signal line in the second face of the conducting film is arranged at, wherein, each second touch-control electricity
Pole is electrically connected with correspondingly with each secondary signal line.
Alternatively, silver paste block is provided with the via in the first face of the conducting film, first signal wire passes through setting
The first silver slurry layer in the second face of the conducting film is formed.
The embodiments of the invention provide a kind of touch control film and preparation method thereof, including：One conducting film, the conducting film are provided
Including the first relative face, the second face and via；Wherein, there is at least one first touch control electrode in the first face of the conducting film；
Form at least one first signal wire in the second face of the conducting film, and make each first touch control electrode by via with
Each first signal wire is electrically connected with correspondingly.The preparation method of a kind of touch control film provided by the invention, with existing skill
The preparation method of touch control film is compared in art, is introduced the electrode of conducting film one side by making at least one via on conducting film
To the another side of conducting film, prior art is effectively reduced in the electrode process for making the touch control film back side to front electrode
Influence, because the first signal wire and secondary signal line are located at the same face of conducting film, therefore it may only be necessary to which the one side in conducting film is entered
Row laser ablation procedure, reduce the risk that laser overlap is come.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows a kind of schematic flow sheet of the preparation method for touch control film that the embodiment of the present invention is provided；
Fig. 2 shows the display schematic diagram of the first touch control electrode in a kind of touch control film that the embodiment of the present invention is provided；
Fig. 3 shows a kind of structural representation in the second face of touch control film that the embodiment of the present invention is provided；And
Fig. 4 shows that the embodiment of the present invention provides a kind of structural representation of touch control film.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Middle accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
It is part of the embodiment of the present invention, rather than whole embodiments.The present invention being generally described and illustrated herein in the accompanying drawings is real
Applying the component of example can be configured to arrange and design with a variety of.Therefore, it is of the invention to what is provided in the accompanying drawings below
The detailed description of embodiment is not intended to limit the scope of claimed invention, but is merely representative of the selected reality of the present invention
Apply example.Based on embodiments of the invention, institute that those skilled in the art are obtained on the premise of creative work is not made
There is other embodiment, belong to the scope of protection of the invention.
The embodiments of the invention provide a kind of preparation method of touch control film, as shown in figure 1, comprising the following steps：
S101, there is provided a conducting film, the conducting film include the first relative face, the second face and via, wherein, it is described to lead
There is at least one first touch control electrode in first face of electrolemma；
S102, at least one first signal wire is formed in the second face of the conducting film, and make each first touch-control
Electrode is electrically connected with correspondingly by via and each first signal wire.
Further, there is at least one second touch control electrode in the second face of the conducting film；
The preparation method of the touch control film also includes：At least one secondary signal line is formed in the second face of the conducting film,
And each second touch control electrode is set to be electrically connected with correspondingly with each secondary signal line.
Wherein, conducting film can be with indium tin oxide layer (ITO layer) or conductive with nanometer silver ink
Layer, the present invention are not limited to conducting film.
First touch control electrode can include the first driving electrodes and the first induction electrode, and second touch control electrode also includes second
Driving electrodes and the second induction electrode.The figure of first touch control electrode can be the latticed of striated or intersection,
The figure of the first touch control electrode may be referred to Fig. 2 in actual applications.
Further, the mistake through the conducting film is formed in the first touch control electrode end in the first face of the conducting film
Hole.
Specifically, the first face in the conductive film is formed before the first touch control electrode, can be formed and run through on conducting film
At least one via of conducting film；After multiple first touch control electrodes can also be formed in the first face of conducting film, on conducting film
The end of each first touch control electrode makes at least one via through conducting film, and said process can be with each first touch-control
Electrode corresponds.The present invention is not limited to the Production Time of via.
First touch control electrode includes at least one first sub- touch control electrode, and the number of the first sub- touch control electrode can be according to leading
The size of electrolemma determines.Via can be located at the end of the first touch control electrode, and the number of via can be with the first sub- touch control electrode
Number it is identical, can also be less than the first sub- touch control electrode number.For example, when the number of the first sub- touch control electrode is 5,
The end of each first sub- touch control electrode accordingly makes a via on conducting film.
Further, it is described to form at least one first signal wire in the second face of the conducting film, and make each described
First touch control electrode is electrically connected with correspondingly by via and each first signal wire, including：
The hole site of crossing in the first face of the conducting film forms silver paste block respectively, silver paste block with it is respective right
First touch control electrode conducting answered；
The first silver slurry layer is formed in the second face of conducting film position corresponding with silver paste block；
At least one first signal wire, first signal wire and corresponding silver are formed on first silver slurry layer
Lumps turns on through the via.
Further, the via is formed in the end of corresponding first touch control electrode.
After via is formed, the hole site of crossing in the first face of conducting film forms silver paste block, includes in silver paste block and leads
Electric silver paste, conductive silver paste include polymer conductive silver slurry and slug type conductive silver slurry.So, when via touches first just
When controlling electrode end position so that electric conductivity is more preferable, and when via is not in the first touch control electrode terminal position, pass through silver slurry layer
So that the first touch control electrode and second touch control electrode electrical connection, and then realize conductive.
In one embodiment, multiple first induction electrodes are formed in the first face of conducting film, in the second face of conducting film
Form multiple second driving electrodes, multiple first signal wires and multiple secondary signal lines, each first induction electrode by via with
First signal wire, which corresponds, to be electrically connected with, and each second driving electrodes connect one to one with each secondary signal line, so
Electric conductivity is preferable.
A kind of preparation method of touch control film provided by the invention, compared with the preparation method of touch control film in the prior art, lead to
Cross and the another side that the electrode of conducting film one side is incorporated into conducting film by least one via is made on conducting film, effectively reduce
Influence of the prior art in the electrode process for making the touch control film back side to front electrode, because first signal wire and second are believed
Number line is located at the same face of conducting film, therefore it may only be necessary to which the one side in conducting film carries out laser ablation procedure, reduces laser overlap
The risk come.
Alternatively, the technique for forming the multiple first touch control electrode, including：
Etching layer is formed on the first face of the conducting film；
The first figure of corresponding first touch control electrode is formed in the etching layer；
To form the etching layer of first figure as mask plate, using etch process, the of the conducting film
Multiple first touch control electrodes are formed on simultaneously.
Wherein, etching layer can include etching layer of paste and anti-etching ink layer.
In one embodiment, when etching layer is etches layer of paste, half tone shape on the first face of conducting film can be utilized
Into etching layer of paste, etching layer of paste is etched using etch process, so as to form multiple first on the first face of conducting film
Touch control electrode.
In another embodiment, when etching layer is anti-etching ink layer, also with half tone the first of conducting film
Anti- etching ink layer is formed on face, is etched using etch process in the region for being not provided with anti-etching ink layer, will be anti-
The figure that etching ink layer is formed is cleaned, and multiple first touch control electrodes are finally formed on the first face of conducting film.
Above-mentioned etch process includes dry method etch technology and wet etching process, and the present invention is not limited this, Suo Youke
Realize that the technique of etching is all within the scope of the present invention.
Alternatively, the technique for forming the multiple second touch control electrode, including：
In the conducting film etching layer is formed on the second face of corresponding first touch control electrode；
The second graph of corresponding second touch control electrode is formed in the etching layer；
To form the etching layer of the second graph as mask plate, using etch process, the of the conducting film
Multiple second touch control electrodes are formed on two faces.
The step of forming second touch control electrode in the second face of conducting film, technique in the first face of conducting film with forming first
The step of touch control electrode, technique are identical, are no longer excessively illustrated herein.
Alternatively, the technique for forming first signal wire, including：
First silver slurry layer is formed at the via in the second face of the conducting film using typography；
First silver slurry layer is handled to obtain the first signal wire using laser technology.
In one embodiment, the second face of conducting film corresponding via position, using typography formed first
Silver slurry layer, after the drying of the first silver slurry layer, multiple first signal wires are carved in the first silver slurry layer using laser technology, each first
Signal wire is electrically connected with a second touch control electrode, and the number of the first signal wire can be with the number phase of second touch control electrode
Together, the present invention is not limited this.
Alternatively, the technique for forming the secondary signal line, including：
Second silver slurry layer is formed at the second touch control electrode in the second face of the conducting film using typography；
Second silver slurry layer is handled to obtain secondary signal line using laser technology.
In one embodiment with reference to figure 3, at the second touch control electrode in the second face of conducting film, using typography shape
Into the second silver slurry layer, after the drying of the second silver slurry layer, multiple secondary signal lines are carved in the second silver slurry layer using laser technology, often
One secondary signal line is electrically connected with by via and a touch control electrode, and the number of secondary signal line can be with the first touch-control
The number of electrode is identical, and the number of via can be identical with the first touch control electrode, and the present invention is not limited this..
It should be noted that the first silver slurry layer and the second silver slurry layer that are provided in the present invention are conductive silver slurry layer, the first silver paste
Layer and the second silver slurry layer include conductive silver paste, and conductive silver paste includes polymer conductive silver slurry and slug type conductive silver slurry.
The embodiment of the present invention provides a kind of touch control film, as shown in figure 4, including：Conducting film 41, the conducting film include relative
The first face 412, the second face 414 and via (being not shown)；
Wherein, there is at least one first touch control electrode 42 in the first face 412 of the conducting film 41；
At least one first signal wire 44 in the second face 414 of the conducting film 41 is arranged at, wherein, each described first
Touch control electrode 42 is electrically connected with correspondingly by via and each first signal wire 44.
Alternatively, there is at least one second touch control electrode 43 in the second face 414 of the conducting film 41；
At least one secondary signal line 45 in the second face 414 of the conducting film 41 is arranged at, wherein, each described second
Touch control electrode 43 is electrically connected with correspondingly with each secondary signal line 45.
Alternatively, silver paste block 46, first signal wire 44 are provided with the via in the first face 412 of the conducting film 41
Formed by first silver slurry layer in the second face 414 for being arranged on the conducting film 41.
In one embodiment, silver paste block 46 may be referred to Fig. 2 in the position in the first face of conducting film 41, and silver paste block 46 exists
Position relationship in second face of conducting film 41 with the first signal wire 44, secondary signal line 45 may be referred to Fig. 3.
Alternatively, first signal wire and secondary signal line are metal material.
The device that inventive embodiments are provided, its realization principle and caused technique effect and preceding method embodiment phase
Together, to briefly describe, device embodiment part does not refer to part, refers to corresponding contents in preceding method embodiment.Affiliated neck
The technical staff in domain can be understood that, for convenience and simplicity of description, the tool of system described above, device and unit
Body running process, the corresponding process in above method embodiment is may be referred to, will not be repeated here.
In embodiment provided by the present invention, it should be understood that disclosed apparatus and method, can be by others side
Formula is realized.Device embodiment described above is only schematical, for example, the division of the unit, only one kind are patrolled
Function division is collected, there can be other dividing mode when actually realizing, in another example, multiple units or component can combine or can
To be integrated into another system, or some features can be ignored, or not perform.Another, shown or discussed is mutual
Coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some communication interfaces, device or unit
Connect, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in embodiment provided by the invention can be integrated in a processing unit, also may be used
To be that unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part to be contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are causing a computer equipment (can be
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the present invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing, in addition, term " the
One ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
Finally it should be noted that：Embodiment described above, it is only the embodiment of the present invention, to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical scheme of the embodiment of the present invention.The protection in the present invention should all be covered
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
- A kind of 1. preparation method of touch control film, it is characterised in that including：A conducting film is provided, the conducting film includes the first relative face, the second face and via；Wherein, there is at least one first touch control electrode in the first face of the conducting film；At least one first signal wire is formed in the second face of the conducting film, and passed through each first touch control electrode Hole is electrically connected with correspondingly with each first signal wire.
- 2. the method as described in claim 1, it is characterised in that there is at least one second touch-control electricity in the second face of the conducting film Pole；Methods described also includes：At least one secondary signal line is formed in the second face of the conducting film, and makes each described Two touch control electrodes are electrically connected with correspondingly with each secondary signal line.
- 3. method as claimed in claim 2, it is characterised in that described that at least one is formed in the second face of the conducting film One signal wire, and each first touch control electrode is electrically connected correspondingly by via and each first signal wire Connect, including：The hole site of crossing in the first face of the conducting film forms silver paste block respectively, silver paste block with it is each self-corresponding The first touch control electrode conducting；The first silver slurry layer is formed in the second face of conducting film position corresponding with silver paste block；At least one first signal wire, first signal wire and corresponding silver paste block are formed on first silver slurry layer Turned on through the via.
- 4. method as claimed in claim 3, it is characterised in that the via is formed in corresponding first touch control electrode End.
- 5. the method as described in claim 1, it is characterised in that at least one first letter is formed in the second face of the conducting film Before number line, in addition to：The via through the conducting film is formed in the first touch control electrode end in the first face of the conducting film.
- 6. method as claimed in claim 2, it is characterised in that the technique for forming the secondary signal line, including：Second silver slurry layer is formed at the second touch control electrode in the second face of the conducting film using typography；Second silver slurry layer is handled to obtain secondary signal line using laser technology.
- 7. the method as described in claim 1, it is characterised in that the technique for forming first signal wire, including：First silver slurry layer is formed at the via in the second face of the conducting film using typography；First silver slurry layer is handled to obtain the first signal wire using laser technology.
- A kind of 8. touch control film, it is characterised in that including：Conducting film, the conducting film include the first relative face, the second face and mistake Hole；Wherein, there is at least one first touch control electrode in the first face of the conducting film；At least one first signal wire in the face of conducting film second is arranged at, wherein, each first touch control electrode passes through Via is electrically connected with correspondingly with each first signal wire.
- 9. touch control film as claimed in claim 8, it is characterised in that there is at least one second touch-control in the second face of the conducting film Electrode；Be arranged at least one secondary signal line in the second face of the conducting film, wherein, each second touch control electrode with Each secondary signal line is electrically connected with correspondingly.
- 10. touch control film as claimed in claim 9, it is characterised in that be provided with silver at the via in the first face of the conducting film Lumps, first signal wire are formed by being arranged on first silver slurry layer in the second face of the conducting film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710832227.6A CN107621913B (en) | 2017-09-15 | 2017-09-15 | Touch film and preparation method thereof |
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|---|---|---|---|
| CN201710832227.6A CN107621913B (en) | 2017-09-15 | 2017-09-15 | Touch film and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107621913A true CN107621913A (en) | 2018-01-23 |
| CN107621913B CN107621913B (en) | 2020-11-03 |
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| CN201710832227.6A Active CN107621913B (en) | 2017-09-15 | 2017-09-15 | Touch film and preparation method thereof |
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| CN108388376A (en) * | 2018-03-07 | 2018-08-10 | 张家港康得新光电材料有限公司 | Conductive film layer structure, its production method and touch screen |
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| Publication number | Publication date |
|---|---|
| CN107621913B (en) | 2020-11-03 |
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