CN103425343B - One-layer multi-point touch control conductive film and one-layer multi-point touch control screen - Google Patents
One-layer multi-point touch control conductive film and one-layer multi-point touch control screen Download PDFInfo
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Abstract
A kind of One-layer multi-point touch control conductive film, comprising: transparent substrates, including induction zone and the rim area adjacent with described induction zone；First conductive layer, in latticed, is arranged at the induction zone of described transparent substrates, and described first conductive layer includes cross one another first conductive thread, and described induction zone offers grid groove, and described first conductive layer is contained in described grid groove；Insulating barrier, is positioned at above the first conductive thread and is embedded in described grid groove；Second conductive layer, in latticed, it is arranged at the induction zone of described transparent substrates, separated by described insulating barrier with described first conductive layer, described second conductive layer includes that in cross one another second conductive thread, described first conductive layer and described second conductive layer, the material of at least one is transparent conductive material.The cost of above-mentioned One-layer multi-point touch control conductive film is relatively low.The present invention also provides for a kind of one-layer multi-point touch control screen.
Description
[technical field]
The present invention relates to a kind of touch control conductive film, particularly relate to a kind of One-layer multi-point touch control conductive film and make
With the one-layer multi-point touch control screen of this One-layer multi-point touch control conductive film.
[background technology]
Nesa coating is the sensing element receiving the input signals such as touch in touch screen.At present, ITO(oxidation
Indium stannum) layer is vital ingredient in nesa coating.Although the manufacturing technology of touch screen one day thousand
In develop rapidly, but as a example by projecting type capacitor screen, the basic manufacturing process of ITO layer is the most not
There is the biggest change, the most inevitably need ITO plated film, ITO pattern.
Indium is the metal material of a kind of costliness, therefore using ITO as the material of conductive layer, largely carries
Rise the cost of touch screen.Furthermore, ITO conductive layer in patterning process, whole the ITO that need to will have plated
Film is etched, and to form ITO pattern, in this process, substantial amounts of ITO is etched, causes a large amount of
Noble metal waste and pollute.
Therefore, the product cost that makes of ITO material and corresponding technique remains high, and causes traditional one-layer multi-point
Touch control conductive film relatively costly.
[summary of the invention]
In view of above-mentioned condition, it is necessary to provide a kind of lower-cost One-layer multi-point touch control conductive film.
A kind of One-layer multi-point touch control conductive film, comprising:
Transparent substrates, including induction zone and the rim area adjacent with described induction zone；
First conductive layer, in latticed, is arranged at the induction zone of described transparent substrates, described first conductive layer
Including cross one another first conductive thread, described induction zone offers grid groove, described first conductive layer
It is contained in described grid groove；
Insulating barrier, is positioned at above the first conductive thread and is embedded in described grid groove；
Second conductive layer, in latticed, is arranged at the induction zone of described transparent substrates, with described first conduction
Layer is separated by described insulating barrier, and described second conductive layer includes cross one another second conductive thread；
Wherein, in described first conductive layer and described second conductive layer, the material of at least one is electrically conducting transparent material
Material.
Compared to traditional One-layer multi-point touch control conductive film, above-mentioned One-layer multi-point touch control conductive film is transparent
Grid groove is offered in substrate, fills the first conductive thread and form the first conductive layer in grid groove, thus with embedding
Enter formula network and replace tradition ITO process structure, thus reduce cost；First conductive layer and second simultaneously
In conductive layer, the material of at least one is transparent conductive material, so for the first conductive layer and the second conductive layer
Alignment precision requires that ratio is relatively low, can reduce cost further.
Wherein in an embodiment, also include that hypothallus, described hypothallus are located at described transparent substrates surface,
The described hypothallus side away from transparent substrates is located in described induction zone and described rim area.
Wherein in an embodiment, described first conductive layer and described second conductive layer may be contained within described base
The induction zone of matter layer.
Wherein in an embodiment, also include the first lead-in wire electrode and the second lead-in wire being located at described rim area
Electrode, described first lead-in wire electrode and the electrical connection of the first conductive layer, described second lead-in wire electrode and the second conduction
Layer electrical connection.
Wherein in an embodiment, described first lead-in wire electrode and described second lead-in wire electrode are linear.
Wherein in an embodiment, described first lead-in wire electrode includes cross one another first conductive lead wire,
Described second lead-in wire electrode includes cross one another second conductive lead wire.
Wherein in an embodiment, described first lead-in wire electrode is positioned at the surface of described rim area, or houses
In the first groove being opened in described rim area.
Wherein in an embodiment, described second lead-in wire electrode is positioned at the surface of described rim area, or houses
In the second groove being opened in described rim area.
Wherein in an embodiment, the grid of described first conductive layer and described second conductive layer is rule mesh
Lattice or random grid.
Wherein in an embodiment, the width of described grid groove is d1, and the degree of depth is h, wherein,
1 μm≤d1≤5 μm, 2 μm≤h≤6 μm, h/d1 ＞ 1.
Wherein in an embodiment, described grid groove be bottom be " V " font, " W " font, arc
Shape or corrugated micro-groove.
Wherein in an embodiment, the degree of depth of described micro-groove is 500nm～1 μm.
Wherein in an embodiment, the material of described transparent substrates is thermoplastic or PET.
Wherein in an embodiment, the material of described hypothallus is UV glue, impressing glue or Merlon.
Wherein in an embodiment, described transparent conductive material is Graphene, PEDOT, ITO or IZO.
Wherein in an embodiment, also include the protective clear layer covering described second conductive layer surface.
Wherein in an embodiment, the material of described protective clear layer is UV glue, impressing glue or Merlon.
A kind of one-layer multi-point touch control screen, including covering plate, One-layer multi-point touch control conductive film and display module,
Described One-layer multi-point touch control conductive film is above-mentioned One-layer multi-point touch control conductive film.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the one-layer multi-point touch control screen of embodiment of the present invention；
Fig. 2 is the profile of the One-layer multi-point touch control conductive film in Fig. 1；
Fig. 3 (a) is to the end of the grid groove that Fig. 3 (d) is the One-layer multi-point touch control conductive film shown in Fig. 2
The structural representation of the different embodiments in portion；
Fig. 4 (a) is different real to the grid that Fig. 4 (d) is the One-layer multi-point touch control conductive film shown in Fig. 2
Execute the structural representation of example；
Fig. 5 is the profile of the One-layer multi-point touch control conductive film of another embodiment；
Fig. 6 is the exploded view of the One-layer multi-point touch control conductive film of another embodiment；
Fig. 7 is the profile in another embodiment of the One-layer multi-point touch control conductive film in Fig. 1；
Fig. 8 is the profile in another embodiment of the One-layer multi-point touch control conductive film in Fig. 1；
Fig. 9 is the profile in another embodiment of the One-layer multi-point touch control conductive film in Fig. 1；
Figure 10 is the profile in another embodiment of the One-layer multi-point touch control conductive film in Fig. 1.
[detailed description of the invention]
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.
Accompanying drawing gives the preferred embodiment of the present invention.But, the present invention can come in many different forms
Realize, however it is not limited to embodiment described herein.On the contrary, provide the purpose of these embodiments be make right
The understanding of the disclosure is more thorough comprehensively.
It should be noted that when element is referred to as " being fixed on " another element, and it can be directly at another
On individual element or element placed in the middle can also be there is.When an element is considered as " connection " another yuan
Part, it can be directly to another element or may be simultaneously present centering elements.Used herein
Term " vertical ", " level ", "left", "right" and similar statement simply to illustrate that mesh
's.
Unless otherwise defined, all of technology used herein and scientific terminology and the technology belonging to the present invention
The implication that the technical staff in field is generally understood that is identical.The art used the most in the description of the invention
Language is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting the present invention.Used herein
Term " and/or " include the arbitrary and all of combination of one or more relevant Listed Items.
Referring to Fig. 1, the one-layer multi-point touch control screen 10 of embodiment of the present invention includes the display stacked gradually
Module 100, One-layer multi-point touch control conductive film 200 and covering plate 300.
Refer to Fig. 2, One-layer multi-point touch control conductive film 200 include transparent substrates 210, hypothallus 220,
First conductive layer 230, insulating barrier 240 and the second conductive layer 250.
Transparent substrates 210 includes first surface and the second surface being oppositely arranged with first surface.Transparent substrates
The shape of 210 can set according to the shape of One-layer multi-point touch control conductive film 100, such as, and transparent substrates
210 is rectangle.The material of transparent substrates is thermoplastic or PET.Concrete, thermoplastic is PC
Or PMMA, naturally it is also possible to for other thermoplastics.
Hypothallus 220 is located at the first surface of transparent substrates 210.Hypothallus 220 include induction zone and with sense
Answer the rim area that district is adjacent.In present embodiment, induction zone is positioned at the middle part of hypothallus.Induction zone offers
Grid groove 221.The material of hypothallus 220 is UV glue, impressing glue or Merlon.
It is filled with conductive material in grid groove 221 to form cross one another first conductive thread, mutually hands over
First conductive thread of fork forms the first conductive layer 230.Preferably, the first conductive layer 230 and grid groove
221 modes being imprinted with are formed.
Further, grid groove 221 is " V " font, " W " font, arc or wave for bottom
The micro-groove of shape.Referring to Fig. 3 (a) to Fig. 3 (d), the grid groove 221 shown in Fig. 3 (a) is the end
Portion is the micro-groove of " V " font, and the grid groove 221 shown in Fig. 3 (b) is " W " font for bottom
Micro-groove, the grid groove 221 shown in Fig. 3 (c) is the micro-groove of arc for bottom, shown in Fig. 3 (d)
Grid groove 221 be corrugated micro-groove for bottom.Preferably, the degree of depth of micro-groove is 500nm～1
μm。
Preferably, the width of grid groove 221 is d1, and the degree of depth is h, wherein, and 1 μm≤d1≤5 μm,
2 μm≤h≤6 μm, h/d1 ＞ 1.
Grid groove 221 is " V " font, " W " font, arc or corrugated micro-groove for bottom,
So the conductive ink in the groove of grid groove 221 is drying when, and conductive ink polycondensation is not easy
Conductive material after now drying does not haves the phenomenon of disconnection.
Referring to Fig. 2, insulating barrier 240 is formed at the surface of the first conductive layer 230, and is embedded at grid
In groove 221.Insulating barrier 240, for the first conductive layer 230 and the second conductive layer 250 being separated, makes the
Mutually it is not turned between one conductive layer 230 and the second conductive layer 250.In present embodiment, insulating barrier 240
Material be dielectric ink or insulating cement.
Second conductive layer 250 is formed at the induction zone of hypothallus 220.Second conductive layer 250 is convexly equipped in substrate
Layer 220 away from a side surface of transparent substrates 210, and by insulating barrier 240 and the first conductive layer 230 every
Open.Second conductive layer 250 includes cross one another second conductive thread.Second conductive layer 250 is by exposure
The modes such as development, silk screen printing complete.
In first conductive layer 230 and the second conductive layer 250, the material of at least one is transparent conductive material.Thoroughly
Bright conductive material is Graphene, PEDOT, ITO or IZO.It should be noted that the first conductive layer 230
And another the material that second in conductive layer 250 can be transparent conductive material, it is possible to for opaque conduction
Material.Opaque transparent conductive material is conducting metal, is silver or copper etc. the most in the present embodiment.
Further, the first conductive layer 230 and the second conductive layer 250 are comb teeth-shaped or latticed.Refer to
Fig. 4 (a) to Fig. 4 (d), the grid of the first conductive layer 230 and the second conductive layer 250 be regular grid or
Random grid.Grid as shown in Figure 4 (a) is random grid, shown in Fig. 4 (b) to Fig. 4 (d)
Grid be respectively regular hexagonal cell, network and square net.
In the embodiment shown in figure 2, the first conductive layer 230 and the second conductive layer 250 are by multiple battle arrays
The conductive strips composition of row arrangement.The conductive strips of the first conductive layer 230 extends along the direction of the first dimension, the
The conductive strips of two conductive layers 250 extends along the direction of the second dimension, the first dimension direction and two-dimensional directional oblique.
Certainly, in other implementations, the first dimension direction is mutually perpendicular to two-dimensional directional.Please refer to
Fig. 5 and Fig. 6, it is illustrated that embodiment in, the conductive strips of the first conductive layer 230 along first dimension direction prolong
Stretching, the conductive strips of the second conductive layer 250 extends along the direction of the second dimension, the first dimension direction and two-dimensional square
To being mutually perpendicular to.
Further, referring to Fig. 7, One-layer multi-point touch control conductive film 200 also includes be located at rim area
One lead-in wire electrode 260 and the second lead-in wire electrode 270.First lead-in wire electrode 260 is electrically connected with the first conductive layer 230
Connecing, the second lead-in wire electrode 270 electrically connects with the second conductive layer 250.It should be noted that the first lead-in wire electricity
Pole 260 and the second lead-in wire electrode 270 are exemplary sign in the drawings, can not distinguish first with this and draw
Line electrode 260 and the second lead-in wire electrode 270.In the illustrated embodiment, the first lead-in wire electrode 260 is contained in
In first groove 223 of the rim area being opened in hypothallus 220, the second lead-in wire electrode 270 is contained in be offered
In the second groove 225 of the rim area of hypothallus 220.Certainly, in other embodiments, the first lead-in wire
Electrode 260 and the second lead-in wire electrode 270 can also directly be convexly equipped in the surface of rim area.First lead-in wire electrode
260 and second lead-in wire electrode 270 can be formed by modes such as silk screen printing, impressing or inkjet printings.
In the present embodiment, the first lead-in wire electrode 260 includes cross one another first conductive lead wire, and second draws
Line electrode 270 includes cross one another second conductive lead wire, the first lead-in wire electrode 260 and the second lead-in wire electrode
270 are network.The network of the first lead-in wire electrode 260 and the second lead-in wire electrode 270 is led with first
The network of electric layer 230 and the second conductive layer 250 is identical, for regular grid or random grid, specifically may be used
Think that Fig. 4 (a) is to the structure shown in Fig. 4 (d).First groove 223 and the structure of the second groove 225 and
Parameter is the most identical with the structure of grid groove 221 and parameter.Certainly, in other examples, first draws
Line electrode 260 and the second lead-in wire electrode 270 can also be linear, and the first lead-in wire electrode 260 and second draws
The live width of line electrode 270 is 50 μm～200 μm, and height is 5 μm～10 μm.
Preferably, the material of the first lead-in wire electrode 260 and the second lead-in wire electrode 270 be that silver, copper, conduction are poly-
Compound or ITO.
Referring to Fig. 8, further, One-layer multi-point touch control conductive film 200 also includes being covered in the second conduction
The protective clear layer 280 on layer 250 surface.Protective clear layer 280 covers the second conductive layer 250 and hypothallus
220 away from the surface of transparent substrates 210.Owing to the second conductive layer 250 is convexly equipped in the surface of hypothallus 220,
Therefore, protective clear layer 280 is formed on the surface of the second conductive layer 250 so that the second conductive layer 250 to be formed
Protection, it is to avoid scratch.Preferably, the material of protective clear layer 280 is UV glue, impressing glue or poly-carbonic acid
Ester.
Please refer to Fig. 9 and Figure 10, in other examples, hypothallus 220 can omit, transparent
Substrate 210 includes induction zone and the rim area adjacent with induction zone.Now grid groove 221 is opened in transparent
The induction zone of substrate 210, the first groove 223 and the second groove 225 are opened in the frame of transparent substrates 210
District, the second conductive layer 250 is located at the induction zone of transparent substrates 210.
Compared to traditional One-layer multi-point touch control conductive film, above-mentioned One-layer multi-point touch control conductive film 200 to
Have the advantage that less
(1) above-mentioned One-layer multi-point touch control conductive film 200 is formed with grid groove 221 on hypothallus 220,
Fill the first conductive thread in grid groove 221 and form the first conductive layer 230, therefore, tie with embedded grider
Structure replaces tradition ITO process structure, thus reduces cost, simplifies manufacturing process；Second conductive layer and first
The material of at least one in conductive layer is transparent conductive material, so for the first conductive layer and the second conduction
Layer alignment precision requires that ratio is relatively low, can reduce cost further.
(2) by forming the first conductive layer 230 and the second conductive layer, the first conductive layer 230 and the second conduction
Layer 250 is separated by insulating barrier 240, and the inductive effects of two conductive layers is more preferable.
(3) by forming grid groove 221 on hypothallus 220, fill first in grid groove 221 and lead
Electrical filament line forms the first conductive layer 230, it is thus possible to reduce the thickness of One-layer multi-point touch control conductive film 100；With
This embedded type of Shi Caiyong designs, and is well protected the performance of One-layer multi-point touch control conductive film 100.
(4) by forming protective clear layer 280 on the surface of the second conductive layer 250, second can be protected to lead
Electric layer 250 is avoided being scratched, and is possible to prevent conductive material to aoxidize simultaneously.
(5) grid groove 221 is " V " font, " W " font, arc or corrugated micro-for bottom
Type groove, the conductive ink in the groove of such grid groove 221 is drying when, and conductive ink polycondensation is not
Easily occur that the conductive material after drying does not haves the phenomenon of disconnection.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (17)
1. an One-layer multi-point touch control conductive film, it is characterised in that including:
Transparent substrates, including induction zone and the rim area adjacent with described induction zone；
First conductive layer, in latticed, is arranged at the induction zone of described transparent substrates, described first conductive layer
Including cross one another first conductive thread, described induction zone offers grid groove, described first conductive layer
It is contained in described grid groove；
Insulating barrier, is positioned at above the first conductive thread and is embedded in described grid groove；
Second conductive layer, in latticed, is arranged at the induction zone of described transparent substrates, with described first conduction
Layer is separated by described insulating barrier, and described second conductive layer includes cross one another second conductive thread；
Wherein, in described first conductive layer and described second conductive layer, the material of at least one is electrically conducting transparent material
Material；
Described grid groove be bottom be " V " font, " W " font, arc or corrugated micro-groove.
2. One-layer multi-point touch control conductive film as claimed in claim 1, it is characterised in that also include substrate
Layer, described hypothallus is located at described transparent substrates surface, described induction zone and described rim area and is located at described base
Matter layer is away from the side of transparent substrates.
3. One-layer multi-point touch control conductive film as claimed in claim 2, it is characterised in that described first leads
Electric layer and described second conductive layer may be contained within the induction zone of described hypothallus.
4. the One-layer multi-point touch control conductive film as described in claim 1 or 3, it is characterised in that also include
Being located at the first lead-in wire electrode and the second lead-in wire electrode of described rim area, described first lead-in wire electrode and first is led
Electric layer electrically connects, described second lead-in wire electrode and the electrical connection of the second conductive layer.
5. One-layer multi-point touch control conductive film as claimed in claim 4, it is characterised in that described first draws
Line electrode and described second lead-in wire electrode are linear.
6. One-layer multi-point touch control conductive film as claimed in claim 4, it is characterised in that described first draws
Line electrode includes that cross one another first conductive lead wire, described second lead-in wire electrode include cross one another second
Conductive lead wire.
7. One-layer multi-point touch control conductive film as claimed in claim 4, it is characterised in that described rim area
Offering the first groove, described first lead-in wire electrode is positioned at the surface of described rim area, or is contained in and is opened in
In described first groove of described rim area.
8. One-layer multi-point touch control conductive film as claimed in claim 4, it is characterised in that described rim area
Offering the second groove, described second lead-in wire electrode is positioned at the surface of described rim area, or is contained in and is opened in
In described second groove of described rim area.
9. One-layer multi-point touch control conductive film as claimed in claim 1, it is characterised in that described first leads
The grid of electric layer and described second conductive layer is regular grid or random grid.
10. One-layer multi-point touch control conductive film as claimed in claim 1, it is characterised in that described grid
The width of groove is d1, and the degree of depth is h, wherein, 1 μm≤d1≤5 μm, 2 μm≤h≤6 μm, h/d1 ＞ 1.
11. One-layer multi-point touch control conductive film as claimed in claim 1, it is characterised in that described micro-groove
The degree of depth be 500nm～1 μm.
12. One-layer multi-point touch control conductive film as claimed in claim 1, it is characterised in that described transparent
The material of substrate is thermoplastic or PET.
13. One-layer multi-point touch control conductive film as claimed in claim 2, it is characterised in that described substrate
The material of layer is UV glue, impressing glue or Merlon.
14. One-layer multi-point touch control conductive film as claimed in claim 1, it is characterised in that described transparent
Conductive material is Graphene, PEDOT, ITO or IZO.
15. One-layer multi-point touch control conductive film as claimed in claim 1, it is characterised in that also include covering
Cover the protective clear layer of described second conductive layer surface.
16. One-layer multi-point touch control conductive film as claimed in claim 15, it is characterised in that described transparent
The material of protective layer is UV glue, impressing glue or Merlon.
17. 1 kinds of one-layer multi-point touch control screens, including covering plate, One-layer multi-point touch control conductive film and display
Module, it is characterised in that described One-layer multi-point touch control conductive film is for as described in any one of claim 1-16
One-layer multi-point touch control conductive film.
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| CN104461010B (en) | 2014-12-23 | 2018-03-30 | 京东方科技集团股份有限公司 | Command signal generating means, flexible apparatus and bending monitoring method |
| CN109725753B (en) * | 2017-10-27 | 2022-08-02 | 苏州维业达触控科技有限公司 | Transparent conductive film and display device |
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| CN202422087U (en) * | 2010-11-04 | 2012-09-05 | 爱特梅尔公司 | Touch position sensing panel |
| CN102782624A (en) * | 2010-03-03 | 2012-11-14 | 未来奈米科技股份有限公司 | Capacitive touch panel and manufacturing method for same |
| CN102903423A (en) * | 2012-10-25 | 2013-01-30 | 南昌欧菲光科技有限公司 | Conduction structure in transparent conduction film, transparent conduction film and manufacture method thereof |
| CN103218077A (en) * | 2013-03-30 | 2013-07-24 | 南昌欧菲光显示技术有限公司 | Optical filter module and touch display screen containing optical filter module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20130027747A (en) * | 2011-09-08 | 2013-03-18 | 삼성전기주식회사 | Touch pannel |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102782624A (en) * | 2010-03-03 | 2012-11-14 | 未来奈米科技股份有限公司 | Capacitive touch panel and manufacturing method for same |
| CN202422087U (en) * | 2010-11-04 | 2012-09-05 | 爱特梅尔公司 | Touch position sensing panel |
| CN102903423A (en) * | 2012-10-25 | 2013-01-30 | 南昌欧菲光科技有限公司 | Conduction structure in transparent conduction film, transparent conduction film and manufacture method thereof |
| CN103218077A (en) * | 2013-03-30 | 2013-07-24 | 南昌欧菲光显示技术有限公司 | Optical filter module and touch display screen containing optical filter module |
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