CN207182934U - Transparent conducting film and touch screen - Google Patents
Transparent conducting film and touch screen Download PDFInfo
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- CN207182934U CN207182934U CN201721219876.0U CN201721219876U CN207182934U CN 207182934 U CN207182934 U CN 207182934U CN 201721219876 U CN201721219876 U CN 201721219876U CN 207182934 U CN207182934 U CN 207182934U
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Abstract
A kind of transparent conducting film is the utility model is related to, contains suspended particulate in the first hard conating and/or the second hard conating.Suspended particulate makes the surface of the first metal layer and/or second metal layer form multiple projections.Therefore, when crimping above-mentioned transparent conducting film, multiple projections can make to form point contact between two neighboring metal level, so as to prevent that its is inter-adhesive.Further, multiple raised distribution densities are 100~2000/mm2.Therefore, while resist blocking and that effect is ensured, moreover it is possible to avoid light transmission rate too low, so as to improve the optical effect of transparent conducting film.Moreover, interval between suspended particulate and base material be present, i.e., suspended particulate will not directly contact with the surface of base material.Therefore, even if the surface of suspended particulate has irregular prominent structure, also base material will not be caused to damage.In addition, utility model also provides a kind of touch screen.
Description
Technical field
Capacitance type touch control screen technical field is the utility model is related to, more particularly to a kind of transparent conducting film and touch-control
Screen.
Background technology
Transparent conducting film is the core parts of capacitance type touch control screen.With the rapid development of intelligent terminal, to transparent
The demand of conductive membrane is also increasingly to increase.Transparent conducting film generally comprises base material and is arranged at the hard of base material both sides
Coating, conductive layer and metal level.At present, because amorphism thin polymer film is compared with crystalline polymer film, have two-fold
Penetrate the advantages of rate is less and uniform, therefore the base material that most of transparent conductive film is formed using armorphous polymer thin film.
Amorphism thin polymer film is more fragile than crystalline polymer film, and its surface is easier to sustain damage.Crimping
When transparent conducting film is tubular, the metal level that can have adjacent transparent conductive film produces adhesion and crimping each other
The problem of.Therefore, occur adding particle in hard conating, so that layer on surface of metal forms the transparent conducting film of projection.
Projection can make adjacent metal level form point contact, so as to avoid sticking together and crimp.
However, the particle diameter of particle is typically small (micron order), and gone back at present for the process for treating surface of micron particles
It is immature.Therefore, the surface of particle can have various unpredictable corner angle, spine and other protrusion structures.These protrude knot
Structure directly contacts with base material, and during the curling of bright conductive membrane, can make it that protrude structure applies a pressure to base material, so as to damage
Hinder base material.
Utility model content
Based on this, it is necessary to asking for base material damage is easily caused in curly course for existing transparent conducting film
Topic, there is provided a kind of transparent conducting film and touch screen that can effectively prevent base material from damaging.
A kind of transparent conducting film, including：
Base material, including the first surface and second surface being oppositely arranged；
It is sequentially formed in the first hard conating, the first transparency conducting layer and the first metal layer of the first surface；
It is sequentially formed in the second hard conating, the second transparency conducting layer and second metal layer of the second surface；
First hard conating and/or second hard conating contain multiple suspended particulates, with the first metal layer
And/or the surface of the second metal layer forms multiple projections, and the multiple raised distribution density be 100~2000/
mm2, interval between the multiple suspended particulate and the surface of the base material be present.
Multiple raised distribution densities are 100~2000/mm2.Therefore, while resist blocking and that effect is ensured, moreover it is possible to
Avoid light transmission rate too low, so as to improve the optical effect of transparent conducting film.Moreover, exist between suspended particulate and base material
Interval, i.e., suspended particulate will not directly contact with the surface of base material.Therefore, even if the surface of suspended particulate has irregular dash forward
Go out structure, also base material will not be caused to damage.
In one of the embodiments, the base material is polycyclic alkene or makrolon or polyethylene terephthalate
Film.
The two kinds of film can meet the requirement to the birefringence and its deviation of base material, and be easy to obtain.Cause
This, can advantageously reduce the cost of transparent conducting film.
In one of the embodiments, the raised distribution density is 400~1000/mm2。
It when raised distribution density is excessive, can cause that the haze value of transparent conducting film is excessive, light transmission rate reduces, enter
And have a strong impact on the outward appearance and optical effect of transparent conducting film.And if raised distribution density is too small, then resist blocking and that
Effect is limited.In above-mentioned density range, transparent conducting film can further take into account resist blocking and that and optical effect.
In one of the embodiments, the material of the suspended particulate and first hard conating and second hard conating
It is identical.
That is, the optical parametric of suspended particulate and the first hard conating and the second hard conating (being collectively referred to as hard conating below)
It is identical.Therefore, impacted smaller, suspended particulate and hard conating are propagated in suspended particulate and the linkage interface of hard conating, light
Closer is an entirety.During when light through the hard conating containing suspended particulate, distortion caused by its round is smaller.Cause
This, transparent conducting film reach resist blocking and that, purpose that resistance to compression connects simultaneously, moreover it is possible to avoid its optical property by unfavorable shadow
Ring.
In one of the embodiments, the material of the suspended particulate is silica, organosilicon polymer, acrylic compounds
Polymer or styrene polymer.
Above material has the advantage that translucency is good, is easily obtained, can be before performance requirement is met for suspended particulate
Putting reduces cost.
In one of the embodiments, along perpendicular to the first metal layer and/or the second metal layer surface
On direction, the multiple raised height is 0.1~0.5 μm.
Raised height is higher, then resist blocking and that effect is better.But with the rise of height, the size phase of suspended particulate
In requisition for increase, so as to cause the haze value of transparent conducting film also to increase therewith, and will be tight after reaching to a certain degree
Ghost image rings the optical effect of transparent conducting film.And in above-mentioned altitude range, transparent conducting film can preferably be taken into account
Resist blocking and that and optical effect.
In one of the embodiments, first hard conating and second hard conating solidify shape by adhesive resin
Into, and the density of the suspended particulate is less than the density of the adhesive resin.
It is general first to lay a layer fluid shape by way of coating on the surface of base material when preparing transparent conducting film
Adhesive resin；Before treating adhesive resin solidification, prefabricated suspended particulate is sprayed thereon；Work of the suspended particulate in gravity
With lower natural subsidence, until certain depth in embedded hard conating；Finally, solidify adhesive resin, can obtain including suspension
The hard conating of particle.
Because the density of suspended particulate is less than the density of adhesive resin.Therefore, suspended in the presence of gravity and buoyancy
Particle can realize suspension in hard conating, without taking other operations, therefore can simplify the preparation stream of transparent conducting film
Journey.
In one of the embodiments, the suspended particulate is spherical in shape, and the particle diameter of the suspended particulate is less than described the
The thickness of the flat site of one hard conating and/or second hard conating, the flat site are first hard conating or institute
State the region that the second hard conating is not provided with the suspended particulate.
In the conducting film of existing resist blocking and that, the particle diameter of particle must be more than the thickness of hard conating, otherwise can not be in metal
The surface of layer forms projection.Therefore, the particle size of particle is limited to the thickness of hard conating, can not further reduce.However,
Grain particle diameter is bigger, then the haze value increase of conductive film, light transmission rate reduce, and then influence the optical effect of conductive film.
In the present embodiment, because suspended particulate is floated on the first hard conating and/or the second hard conating.Therefore, it is even if outstanding
The particle diameter of floating particles be less than hard conating thickness, nor affect on its formed on the surface of the first metal layer or second metal layer it is convex
Rise.That is, the particle diameter of suspended particulate is not limited by hard coat layer thickness, the particle diameter of suspended particulate is relative to existing resist blocking and that
The particle diameter of particle can further reduce in conducting film, so as to reduce haze value, lifting light transmission rate, finally improve optical effect.
A kind of touch screen, the touch screen are made as the transparent conducting film any one of above preferred embodiment
Into the touch screen includes Touch Zone and lead district, and the first metal layer and the second metal layer are located at the lead district；
The Touch Zone include by first transparency conducting layer first electrode that forms of etching and by the etching of the second transparency conducting layer and
Into second electrode；The lead district is included by the first metal layer and the first transparency conducting layer quilt positioned at the lead district
The first lead formed is etched, and shape is etched by the second metal layer and positioned at the second transparency conducting layer of the lead district
Into the second lead.
In above-mentioned touch screen, by the first metal layer, second metal layer, the first transparency conducting layer and the second transparency conducting layer
Directly etching obtains the first lead and the second lead.It is therefore not necessary to formed and first electrode and the second electricity by silk-screen mode again
The lead of pole electrical connection.Compared with traditional touch screen, due to without silk-screen, the contact conductor directly formed by gold-tinted processing procedure
Width can further reduce, therefore touch screen has narrow frame.
Brief description of the drawings
Fig. 1 is the stepped construction schematic diagram of transparent conducting film in the utility model preferred embodiment；
Fig. 2 is the local A of transparent conducting film shown in Fig. 1 enlarged drawing；
Fig. 3 is the stepped construction schematic diagram of transparent conducting film in the utility model another embodiment；
Fig. 4 is the stepped construction schematic diagram of touch screen in the utility model preferred embodiment.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can come in many different forms
Realize, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to of the present utility model
The understanding of disclosure more thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all combination of one or more related Listed Items.
Fig. 1 and Fig. 2 is referred to, the transparent conducting film 10 in the utility model preferred embodiment includes base material 11, the
One hard conating 12, the first transparency conducting layer 13, the first metal layer 14, the second hard conating 22, the second transparency conducting layer 23 and second
Metal level 24.
Base material 11 includes the first surface (upper surface shown in Fig. 1) and second surface (lower surface shown in Fig. 1) being oppositely arranged.
Base material 11 is formed by amorphism thin polymer film.Because amorphism thin polymer film is smaller simultaneously than crystalline polymer film birefringence
And uniformly, the irregular colour that can be eliminated in transparent conducting film 10 of the present utility model is even.For amorphous of the present utility model
Birefringence in the face of property thin polymer film is preferably 0~0.001, and more preferably 0~0.0005.It is new for this practicality
The deviation of birefringence in the face of the amorphism thin polymer film of type is preferably less than 0.0005, and more preferably 0.0003
Below.
Foregoing birefringence and its deviation can be reached by selecting the amorphism thin polymer film of suitable species.Specifically
In the present embodiment, base material 11 is polycyclic alkene or makrolon or pet film.The two types
Film can meet the requirement of birefringence and its deviation.The thickness of the base material 11 formed by amorphism thin polymer film is 20 μm
~200 μm.
First hard conating 12, the first transparency conducting layer 13 and the first metal layer 14 are sequentially formed in the first table of base material 11
Face.Second hard conating 22, the second transparency conducting layer 23 and second metal layer 24 are sequentially formed in the second surface of base material 11.Its
In：
First hard conating 12 plays a protective role to the first surface of base material 11.First hard conating 12 includes binding agent tree
Fat.The resin glue includes the hardening resin composition for example based on ultraviolet, electron ray.Hardening resin composition
Preferably comprise polymer obtained from glycidyl acrylate based polymer carries out addition reaction with acrylic acid.Or solidification
Property resin combination preferably comprises polyfunctional acrylic ester polymer (pentaerythrite, dipentaerythritol etc.).Curable resin group
Compound also includes polymerization initiator.
First transparency conducting layer 13 is formed at the surface of the first hard conating 12.First transparency conducting layer 13 is by visible region
Sheet resistance value (the unit of transmissivity height (more than 80%) and per unit area in domain (380nm~780nm)：Ω/m2) be
500Ω/m2Following layer is formed.Preferred 15nm~the 100nm of thickness of first transparency conducting layer 13, more preferably 15nm~
50nm.First transparency conducting layer 13 is for example by indium tin oxide (ITO), indium tin oxide or indium oxide-zinc oxide composites
Any formation.
The first metal layer 14 is formed on the surface of the first transparency conducting layer 13.The first metal layer 14 is of the present utility model
When transparent conducting film is used for such as touch panel, connected up for being formed in the outside of touch input area.On forming the
The material of one metal level 15, representational is copper, silver, it is possible to use the arbitrary metal of excellent electric conductivity in addition.
The thickness of the first metal layer 14 is preferably 50nm~500nm, more preferably 100nm~300nm.
Further, the second hard conating 22, the second transparency conducting layer 23 and second metal layer 24 respectively with the first hard conating
12nd, the film layer structure of the first transparency conducting layer 13 and the first metal layer 14, function and material composition are identical, therefore no longer superfluous herein
State.
In addition, the first hard conating 12 and/or the second hard conating 22 contain multiple suspended particulates 15, with the first metal layer 14
And/or the surface of second metal layer 24 forms multiple raised 16.Multiple raised 16 distribution densities are 100~2000/mm2。
Moreover, interval between multiple suspended particulates 15 and the surface of base material 11 be present.
Specifically, suspended particulate 15 can irregularly, can also preset rules (as equably) be distributed in first and hard apply
In the hard conating 22 of layer 12 and/or second.Suspended particulate 15 can be spheric granules, or unsetting particle.Suspended particulate 15
Suspended state is in the first hard conating 12 and/or the second hard conating 22, therefore is not contacted directly with base material 11.
Suspended particulate 15 can be only contained in the first hard conating 12 or the second hard conating 22, so as to obtain one side formed with convex
Play 16 transparent conducting film 10；Suspended particulate 15 can be also contained in the first hard conating 12, be also contained in the second hard painting
In layer 22, so as to obtain the two-sided transparent conducting film 10 formed with projection 16.
Illustrated by taking the first hard conating 12 as an example：
Suspended particulate 15 protrudes from the surface of the first hard conating 12, so that the surface of the first hard conating 12 forms evagination
Region, and the region that the first hard conating 12 is not provided with suspended particulate 15 then forms flat site 17.Due to the first transparency conducting layer
13 and the surface that is cascading with the first hard conating 12 of the first metal layer 14, therefore both surface configurations and the first hard conating
12 surface configuration is identical.Therefore, in the first metal layer 14 and 14 corresponding region of suspended particulate, multiple raised 16 can be formed.
Similarly, when containing suspended particulate 15 in the second hard conating 22, the surface of second metal layer 24 can also form multiple convex
Play 16.
When using volume to volume technique (roll to roll process) to manufacture the transparent conductive film 10 of strip, by
The surface of the first metal layer 14 and/or second metal layer 24 is set to form multiple raised 16 in suspended particulate 15.Therefore, it is saturating in curling
During bright conductive membrane 10, multiple raised 16 can make to form point contact between two neighboring metal level, so as to prevent that it is mutually viscous
Even, crimping.
It is additionally, since between the surface of suspended particulate 15 and base material 11 in the presence of interval, i.e., suspended particulate 15 will not be with base material
11 surface directly contacts.Therefore, also will not be to base material 11 even if the surface of suspended particulate 15 has irregular prominent structure
Cause to damage.
Further, because multiple raised distribution densities are 100~2000/mm2.Therefore, resist blocking and that effect is being ensured
While fruit, moreover it is possible to avoid light transmission rate too low, so as to improve the optical effect of transparent conducting film 10.
Specifically in the present embodiment, the distribution density of projection 16 is 400~1000/mm2。
When the distribution density of projection 16 is excessive, it can cause that the haze value of transparent conducting film 10 is excessive, light transmission rate drop
It is low, and then have a strong impact on the outward appearance and optical effect of transparent conducting film 10.And if the distribution density of projection 16 is too small, then
The effect of resist blocking and that is limited.In above-mentioned density range, transparent conducting film 10 is with the same of preferable resist blocking and that effect
When, moreover it is possible to further optimize optical effect.
In the present embodiment, suspended particulate 15 is contained in the first hard conating 12 and the second hard conating 22, so that the first gold medal
The surface of category layer 14 and second metal layer 24 is each formed with multiple raised 16.
That is, the two-sided of resulting transparent conducting film 10 is each formed with multiple raised 16.Therefore, crimping
During transparent conducting film 10, the point position that contact is put between adjacent two metal levels is increased, therefore the effect that its resist blocking and that, resistance to compression connect
Fruit is more preferable.
Referring to Fig. 3, in another embodiment, any of the first hard conating 12 and the second hard conating 22 contain suspension
Particle 15, so that the surface of the first metal layer 14 or second metal layer 24 is formed with multiple raised 16.
That is, the resulting only one side of transparent conducting film 10 is formed with multiple raised 16.Therefore, play it is anti-
While adhesion, resistance to compression connect effect, moreover it is possible to avoid the shade of two layers of suspended particulate 15 from being overlapped mutually, to mitigate mist degree, so as to carry
Rise the optical effect of transparent conducting film 10.
In the present embodiment, suspended particulate 15 is identical with the material of the first hard conating 12 and the second hard conating 22.
Because suspended particulate 15 is identical with the material of the first hard conating 12 and the second hard conating 22 (being collectively referred to as hard conating below),
Therefore its optical parametric is also identical.Therefore, in suspended particulate 15 and the linkage interface of hard conating, light propagation institute is impacted smaller,
It is an entirety that suspended particulate 15 is closer with hard conating.When light is through the first hard conating 12 containing suspended particulate 15 and the
During two hard conatings 22, distortion is smaller caused by its round.Therefore, transparent conducting film 10 is reaching resist blocking and that, resistance to compression
The purpose connect is simultaneously, moreover it is possible to avoids its optical property from being adversely affected.
Further, in the present embodiment, the material of suspended particulate 15 is silica, organosilicon polymer, acrylic acid
Birds of the same feather flock together compound or styrene polymer.
Above material has the advantage that translucency is good, is easily obtained, and can meet performance requirement for suspended particulate 15
Under the premise of reduce cost.Certainly, also other suitable materials can be selected according to the performance and cost needs of reality.
In the present embodiment, suspended particulate 15 is spherical in shape, and the particle diameter of suspended particulate 15 be less than the first hard conating 12 and/or
The thickness of the flat site 17 of second hard conating 22.
In the conducting film of current resist blocking and that, the particle diameter of particle must be more than the thickness of hard conating, otherwise can not be in metal level
Surface form projection.Therefore, the particle size of particle is limited to the thickness of hard conating, can not further reduce.However, particle
Particle diameter is bigger, then the haze value increase of conductive film, light transmission rate reduce, and then influence the optical effect of conductive film.
In the present embodiment, suspended particulate 15 is floated on the first hard conating 12 and/or the second hard conating 22.Therefore, even if
The particle diameter of suspended particulate 15 is less than the thickness of hard conating, nor affects on it on the first metal layer 14 or the surface of second metal layer 24
Form projection 16.That is, the particle diameter of suspended particulate 15 is not limited by hard coat layer thickness, the particle diameter of suspended particulate 15 is relative
The particle diameter of particle can further reduce in existing resist blocking and that conducting film, so as to reduce haze value, lifting light transmission rate, finally change
Kind optical effect.
It is appreciated that in other embodiments, suspended particulate 15 can also be aspherical particle.Now, suspended particulate 15 exists
Size on the direction on the surface of base material 11, less than the thickness of flat site 17.
In the present embodiment, the first hard conating 12 and the second hard conating 22 are formed by curing by adhesive resin, and suspension
The density of grain 15 is less than the density of adhesive resin.
The forming process of first hard conating 12 and the second hard conating 22 is as described above.Preparing transparent conducting film 10
When, the first adhesive resin for laying a layer fluid shape by way of coating on the surface of base material 11；Treat that adhesive resin solidifies
Before, prefabricated suspended particulate 15 is sprayed thereon；The natural subsidence under gravity of suspended particulate 15, hard applied until embedded
Certain depth in layer；Finally, solidify adhesive resin, the hard conating for including suspended particulate 15 can be obtained.
Because the density of suspended particulate 15 is less than the density of adhesive resin.Therefore, hanged in the presence of gravity and buoyancy
Floating particles 15 can realize suspension in hard conating, without taking other operations, therefore can simplify transparent conducting film 10
Preparation flow.
It is pointed out that in other embodiments, the density of suspended particulate 15 is also greater than or equal to adhesive resin
Density.Now, phase separation method need to be used suspended particulate 15 is separated with adhesive resin, and then just can makes suspended particulate 15 just
Suspension can be realized in hard conating.
In order to realize that more preferably resist blocking and that and resistance to compression connect effect, for the first metal layer 14 and the table of second metal layer 24
The dense degree of surface roughness and projection 16 has corresponding requirement.
In the present embodiment, it is multiple on edge on the direction on the first metal layer 14 and/or the surface of second metal layer 24
The height of projection 16 is 0.1~0.5 μm.
The height of projection 16, refer to that projection 16 protrudes from the height on the first metal layer 14 and/or the surface of second metal layer 24
Degree.Because the size of suspended particulate 15 is smaller, therefore it is difficult to be accurately controlled each raised 16 height.Therefore, by projection
16 height is controlled in above-mentioned altitude range.It is pointed out that in actual production, due to being difficult to each suspension
The progress of particle 15 accurately controls, therefore the height for having the projection 16 that few partial suspended particle 15 is formed being difficult to avoid that
Outside above range.But influenceed caused by part projection 16 negligible.Moreover, what above-mentioned height can refer to
It is the arithmetic mean of instantaneous value of a number of raised 16 height in preset range.
In general, the height of projection 16 is higher, then resist blocking and that effect is better.But with the rise of height, hang
The size of floating particles 15 so as to cause the haze value of transparent conducting film 10 also to increase therewith, and reaches mutually in requisition for increase
The optical effect of transparent conducting film 10 will be had a strong impact on after to a certain extent.And in above-mentioned altitude range, it is transparent to lead
Electric thin film 10 can preferably take into account resist blocking and that and optical effect.
Wherein, the height of projection 16 can be changed by adjusting the suspension degree of the size of suspended particulate 15 and suspended particulate 15
Become.
Above-mentioned transparent conducting film 10, suspended particulate 15 make the surface of the first metal layer 14 and/or second metal layer 24
Form multiple raised 16.Therefore, when crimping above-mentioned transparent conducting film 10, multiple raised 16 can make two neighboring metal level
Between formed point contact, so as to prevent that its is inter-adhesive.Further, multiple raised 16 distribution densities be 100~2000/
mm2.Therefore, while resist blocking and that effect is ensured, moreover it is possible to avoid light transmission rate too low, so as to improve transparent conducting film 10
Optical effect.Moreover, interval between the surface of suspended particulate 15 and base material 11 be present, i.e., suspended particulate 15 will not be with base material 11
Surface directly contact.Therefore, even if the surface of suspended particulate 15 has irregular prominent structure, base material 11 will not also be made
Into damage.
In addition, the utility model also provides a kind of touch screen.Also referring to Fig. 4, in the utility model preferred embodiment
Touch screen 200 as made by the transparent conducting film 1 in above-described embodiment.Wherein：
Touch screen 200 includes Touch Zone 210 and lead district 220.Specifically, Touch Zone 210 is located in touch screen 200
Portion, and lead district 220 is then around the circumferentially disposed of Touch Zone 210.The first metal layer 14 and second metal layer 24 are located at lead district
220。
Touch Zone 210 includes first electrode 211 and second electrode 212.Wherein, first electrode 211 is by the first electrically conducting transparent
The etching of layer 13 forms；Second electrode 212 is etched by the second transparency conducting layer 23 and formed.First electrode 211 and second electrode 212 are lost
It is carved into electrode pattern.Specifically, electrode pattern is general elongated and intersects vertically in latticed, relative first electrode 211
And second electrode 212 forms the two poles of the earth of capacitance structure.
Lead district 220 includes the first lead 221 and the second lead 222.First lead 221 is by the first metal layer 14 and is located at
First transparency conducting layer 13 of lead district 220 is etched to form；Second lead 222 is then by second metal layer 24 and positioned at lead district
220 the second transparency conducting layer 23 is etched to form.First lead 221 and the second lead 222 are double-decker, so as to realize with
First electrode 211 and second electrode 212 electrically connect.
It is transparent by the first metal layer 14, second metal layer 24, the first transparency conducting layer 13 and second in above-mentioned touch screen
The directly etching of conductive layer 23 obtains the first lead 221 and the second lead 222.Therefore, because without silk-screen, directly by gold-tinted processing procedure
The width of the contact conductor of formation can further reduce, therefore touch screen has narrow frame.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
1. a kind of transparent conducting film, including：
Base material, including the first surface and second surface being oppositely arranged；
It is sequentially formed in the first hard conating, the first transparency conducting layer and the first metal layer of the first surface；
It is sequentially formed in the second hard conating, the second transparency conducting layer and second metal layer of the second surface；
Characterized in that, first hard conating and/or second hard conating contain multiple suspended particulates, with described first
The surface of metal level and/or the second metal layer forms multiple projections, and the multiple raised distribution density be 100~
2000/mm2, interval between the multiple suspended particulate and the surface of the base material be present.
2. transparent conducting film according to claim 1, it is characterised in that the base material is polycyclic alkene or poly- carbonic acid
Ester or pet film.
3. transparent conducting film according to claim 1, it is characterised in that the raised distribution density be 400~
1000/mm2。
4. transparent conducting film according to claim 1, it is characterised in that the suspended particulate and the described first hard painting
The material of layer and second hard conating is identical.
5. transparent conducting film according to claim 4, it is characterised in that the material of the suspended particulate is titanium dioxide
Silicon, organosilicon polymer, acrylic polymer or styrene polymer.
6. transparent conducting film according to claim 1, it is characterised in that along perpendicular to the first metal layer
And/or on the direction on the second metal layer surface, the multiple raised height is 0.1~0.5 μm.
7. transparent conducting film according to claim 1, it is characterised in that first hard conating and described second hard
Coating is formed by curing by adhesive resin, and the density of the suspended particulate is less than the density of the adhesive resin.
8. according to the transparent conducting film described in any one of claim 1 to 7, it is characterised in that the suspended particulate is in ball
Shape, and the particle diameter of the suspended particulate is less than the thickness of the flat site of first hard conating and/or second hard conating,
The flat site is the region that first hard conating or second hard conating are not provided with the suspended particulate.
9. a kind of touch screen, it is characterised in that the touch screen is as the electrically conducting transparent described in any one of the claims 1 to 8
Made by property film, the touch screen includes Touch Zone and lead district, and the first metal layer and the second metal layer are located at
The lead district；The Touch Zone is included by first transparency conducting layer first electrode that forms of etching and transparent by second
The second electrode that Conductive Layer Etch forms；The lead district is included by the first metal layer and first positioned at the lead district
The first lead that transparency conducting layer is etched to form, and transparent led by the second metal layer and positioned at the second of the lead district
The second lead that electric layer is etched to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219876.0U CN207182934U (en) | 2017-09-22 | 2017-09-22 | Transparent conducting film and touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219876.0U CN207182934U (en) | 2017-09-22 | 2017-09-22 | Transparent conducting film and touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207182934U true CN207182934U (en) | 2018-04-03 |
Family
ID=61749004
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721219876.0U Active CN207182934U (en) | 2017-09-22 | 2017-09-22 | Transparent conducting film and touch screen |
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| Country | Link |
|---|---|
| CN (1) | CN207182934U (en) |
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2017
- 2017-09-22 CN CN201721219876.0U patent/CN207182934U/en active Active
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