CN207182942U - Transparent conducting film and touch screen - Google Patents
Transparent conducting film and touch screen Download PDFInfo
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- CN207182942U CN207182942U CN201721227326.3U CN201721227326U CN207182942U CN 207182942 U CN207182942 U CN 207182942U CN 201721227326 U CN201721227326 U CN 201721227326U CN 207182942 U CN207182942 U CN 207182942U
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Abstract
It the utility model is related to a kind of transparent conducting film, including the first hard conating, the first transparency conducting layer and the first metal layer of the first surface for being sequentially formed in base material, and the second hard conating of the second surface of base material, the second transparency conducting layer and second metal layer.First hard conating and/or the second hard conating contain multiple particles, to form multiple projections on the surface of the first metal layer and/or second metal layer.Wherein, the surface of particle offers a plurality of strip groove.When crimping transparent conducting film, multiple projections can make to form point contact between two neighboring metal level, so as to prevent adhesion.The surface for being additionally, since particle offers a plurality of strip groove, the surface area increase of particle.Therefore, the contact area increase between particle and the first hard conating and/or second hard conating, therefore the increase of the adhesive force of particle, so as to effectively prevent particle from coming off.In addition, the 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 general spherical in shape or elliposoidal of particle in existing conducting film, its surface are relatively smooth.Therefore, particle
Adhesive force in hard conating is limited.When forming conductive layer and metal level on the hard conating for include particle, it is necessary to carry out
Coating, drying and other steps, this will likely result in the poor particle of adhesive force and is come off from hard conating, and then influence the anti-of conducting film
Adhesion effect.
Utility model content
Based on this, it is necessary to asked for particle is caducous in the existing transparent conducting film with resist blocking and that function
A kind of topic, there is provided transparent conducting film and touch screen that can effectively strengthen particle adhesive force.
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 particles, with the first metal layer and/or
The surface of the second metal layer forms multiple projections；
Wherein, the surface of the particle offers a plurality of strip groove.
Because the surface of particle offers a plurality of strip groove, the surface area increase of particle.Therefore, particle and the first hard painting
A contact area increase between layer and/or second hard conating, therefore the increase of the adhesive force of particle, so as to effectively prevent
Abscission.
In one of the embodiments, the material phase of the particle and first hard conating and second hard conating
Together.
That is, particle and the optical parametric of the first hard conating and the second hard conating (being collectively referred to as hard conating below) also phase
Together.Therefore, in particle and the linkage interface of hard conating, light propagation institute is impacted smaller, and it is one that particle is closer with hard conating
Individual entirety.During when light through the hard conating containing particle, distortion caused by its round is smaller.Therefore, transparent conductivity
Film reach resist blocking and that, purpose that resistance to compression connects simultaneously, moreover it is possible to avoid its optical property from being adversely affected.
In one of the embodiments, the both ends of the multiple strip groove are respectively positioned on through on the axis of the particle.
Above-mentioned axis refers to the straight line of another point farthest through any point on particle surface and with point distance.This
When, multiple strip grooves have common starting point and terminal, so that the surface of particle is farthest by strip groove institute
Covering.Therefore, the maximization of surface area is advantageously implemented in the constancy of volume of particle.
In one of the embodiments, on the cross section of the particle, the inner surface contour of the strip groove is in triangle
Shape.
The groove of triangle is convenient to be molded, and can further lift the surface area of particle.Therefore, inner surface contour is triangular in shape
Strip groove can while processing efficiency is lifted, further lifted particle adhesive force.
In one of the embodiments, the particle is elongated, and the particle is perpendicular to the substrate surface
Size on direction is more than the size on the direction parallel to the substrate surface.
Traditional particle is spherical in shape or unsetting, and it is laterally (parallel to substrate surface) and longitudinal (perpendicular to base material table
Face) size is suitable.Therefore, when needing to increase height of projection, its longitudinal direction and lateral dimension are both needed to equal proportion increase.Now, by
Excessive in lateral dimension, the interception caused by particle is more obvious, so as to cause the mist degree of conducting film to increase.
In the utility model, particle is elongated, and particle on the direction perpendicular to substrate surface (longitudinal direction) chi
The very little size for being more than on the direction parallel to substrate surface (transverse direction).That is, particle longitudinal direction is compared with the size of transverse direction
Greatly.Therefore, even if raised height increase, the lateral dimension of particle can still be maintained to a lesser extent, so as to anti-in lifting
While adhesion effect, moreover it is possible to effectively reduce mist degree.
In one of the embodiments, the particle is vertically arranged relative to the surface of the base material, and the bar shaped is recessed
Groove extends along perpendicular to the direction of the substrate surface.
Particle longitudinal direction and horizontal size ratio can further be increased, so as to which in the case of height of projection identical, one can be entered
Step subtracts short grained lateral dimension.In addition, strip groove is consistent with the bearing of trend of particle, both strip groove extended longitudinally.
Therefore, strip groove as the path of light, can further mitigate the interception of particle, so as to further reduce transparent lead
The mist degree of electric thin film.
In one of the embodiments, the center of gravity of the particle is located at the particle close to one end of the base material.
When preparing transparent conducting film, need first to lay a layer fluid shape by way of coating on the surface of base material
Adhesive resin；Before treating adhesive resin solidification, prefabricated particle is sprayed thereon；Particle sinks naturally under gravity
Drop, until in embedded hard conating；Finally, solidify adhesive resin, the hard conating for including particle can be obtained.
Because the center of gravity of particle is located at particle close to one end of base material.That is, there is centre-of gravity shift in particle.Therefore,
Particle can voluntarily be overturn under gravity during natural subsidence, and finally along vertical or be approximately perpendicular to base
The direction on material surface is fixed in hard conating.Due to other operations need not be taken, it can realize that particle is carried out according to preset state
Lay, therefore the preparation flow of transparent conducting film can be simplified.
In one of the embodiments, the particle includes solid area and hollow area, and the solid area is located at institute
State particle and be located at the other end of the particle close to one end of the base material, the hollow area.
By setting solid area and hollow area, the middle center of gravity of particle can be made to shift.Moreover, formed on particle
The mode of hollow area is varied, so as to lift the preparation efficiency of transparent conducting film and reduce cost.
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 enlarged diagram of local A in transparent conducting film shown in Fig. 1；
Fig. 3 is the structural representation of particle in transparent conducting film shown in Fig. 1；
Fig. 4 is schematic cross-section of the particle along B-B directions shown in Fig. 3；
Fig. 5 is the stepped construction schematic diagram of transparent conducting film in the utility model another embodiment；
Fig. 6 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.
Wherein, first surface and second surface are intended merely to make a distinction two surfaces of base material 11, first surface and second surface
Position it is interchangeable.Base material 11 is formed by amorphism thin polymer film.Because amorphism thin polymer film is thinner than crystalline polymer
Film birefringence is small and uniform, and the irregular colour that can be eliminated in transparent conducting film 10 of the present utility model is even.For this
Birefringence in the face of the amorphism thin polymer film of utility model is preferably 0~0.001, more preferably 0~
0.0005.Deviation for the birefringence in the face of amorphism thin polymer film of the present utility model be preferably 0.0005 with
Under, more preferably less than 0.0003.
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 particles 15, with the first metal layer 14 and/
Or the surface of second metal layer 24 forms multiple raised 16.Also referring to Fig. 3 and Fig. 4, the surface of particle 15 offers multiple
Strip groove 151.Multiple strip grooves 151 are along the circumferentially distributed of particle 15.Therefore, the surface area increase of particle 15, and then make
The contact area for obtaining particle 15 and the first hard conating 12 and/or the second hard conating 22 also increases.
Specifically, particle 15 can irregularly, can also preset rules (as equably) be distributed in the first hard conating 12
And/or second in hard conating 22.Particle 15 can be only contained in the first hard conating 12 or the second hard conating 12, so as to obtain list
Transparent conducting film 10 of the face formed with projection 16；Particle 15 can with and be contained in the first hard conating 12, be contained in again
In two hard conatings 12, so as to obtain the two-sided transparent conducting film 10 formed with projection 16.
Illustrated exemplified by projection 16 is formed on the surface of the first metal layer 14：
Particle 15 protrudes from the surface of the first hard conating 12, so that the surface of the first hard conating 12 forms the area of evagination
Domain, and the region that the first hard conating 12 is not provided with particle 15 then forms flat site 17.Due to the first transparency conducting layer 13 and
One metal level 14 is cascading the surface with the first hard conating 12, therefore both surface configurations and the table of the first hard conating 12
Face shape is identical.Therefore, in the first metal layer 14 and 14 corresponding region of particle, 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 particle 15.Therefore, transparent lead is being crimped
During electric thin film 10, multiple raised 16 can make to form point contact between two neighboring metal level, so as to prevent its inter-adhesive, pressure
Connect.
The contact area increase being additionally, since between the hard conating 12 of particle 15 and first and/or the second hard conating 22, therefore
The adhesive force increase of grain 15, so as to effectively prevent particle 15 from coming off.
In the present embodiment, particle 15 is contained in the first hard conating 12 and the second hard conating 22, so that the first metal layer
14 and the surface of second metal layer 24 be 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. 5, in another embodiment, any of the first hard conating 12 and the second hard conating 22 contain particle
15, so that the surface of the first metal layer 14 or second metal layer 14 is formed with multiple raised 16.
That is, the resulting only one side of transparent conducting film 1 is formed with multiple raised 16.Therefore, play it is anti-
While the effect that adhesion, resistance to compression connect, it is avoided that the shade of two layers of particle 15 is overlapped mutually, to mitigate mist degree, so as to be lifted
The optical effect of bright conductive membrane 10.
In the present embodiment, particle 15 is identical with the material of the first hard conating 12 and the second hard conating 22.
Because particle 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 the linkage interface of particle 15 and hard conating, it is impacted smaller that light propagates institute, particle 15 with
It is an entirety that hard conating is closer.When light is through hard conating containing particle 15, distortion caused by its round compared with
It is small.Therefore, transparent conducting film 10 reach resist blocking and that, purpose that resistance to compression connects simultaneously, moreover it is possible to avoid its optical property by
Adverse effect.
Referring to Fig. 3 and Fig. 4, in the present embodiment, the both ends of multiple strip grooves 151 are respectively positioned on through particle 15
Axis on.
Specifically, above-mentioned axis refers to another point farthest through any point on the surface of particle 15 and with point distance
Straight line.Now, multiple strip grooves 151 have common starting point and terminal, so that the surface of particle 15 is at utmost
Covered by strip groove 151.Therefore, the maximization of surface area is advantageously implemented in the constancy of volume of particle 15.
Further, in the present embodiment, on section of the particle 15 perpendicular to axis, the inwall wheel of strip groove 151
It is wide triangular in shape.
The groove of triangle is convenient to be molded, and can further lift the surface area of particle 15.Therefore, inner surface contour is in triangle
The strip groove 151 of shape while processing efficiency is lifted, can further lift the adhesive force of particle 15.
In the present embodiment, particle 15 is elongated, and particle 15 is in the size on the direction on the surface of base material 11
More than the size on the direction parallel to substrate surface.
Traditional particle is spherical in shape or unsetting, and it is laterally (parallel to substrate surface) and longitudinal (perpendicular to base material table
Face) size is suitable.Therefore, when needing to increase raised 16 height, its longitudinal direction and lateral dimension are both needed to equal proportion increase.However,
When the lateral dimension of particle 15 is excessive, the interception caused by particle 15 is more obvious, so as to cause the mist degree of conducting film
Increase.
In the utility model, particle 15 is elongated, is set when particle 15 is vertical or is approximately perpendicular to the surface of base material 11
When putting, size of the particle 15 on the direction on the surface of base material 11 (longitudinal direction) is more than in the direction parallel to the surface of base material 11
The size of upper (transverse direction).That is, the longitudinal direction of particle 15 and the size of transverse direction are bigger.Therefore, even if the height of projection 16 increases
Add, the lateral dimension of particle 15 can still be maintained to a lesser extent, so as in the lifting resist blocking and that of transparent conducting film 10 effect
While fruit, moreover it is possible to effectively reduce its mist degree.
Further, in the present embodiment, particle 15 is vertically arranged relative to the surface of base material 11, and the edge of strip groove 151
Extend perpendicular to the direction on the surface of base material 11.
Specifically, strip groove 151 is consistent with the bearing of trend of particle 15 of strip, and it is each perpendicular to the table of base material 11
Face.Now, the longitudinal direction of particle 15 and horizontal size ratio are maximum, so as in the case of raised 16 height identicals, can further subtract
The lateral dimension of little particle 15.Further, since strip groove 151 extends longitudinally.Therefore, strip groove 151 can be used as light
Path, further mitigate particle 15 interception, so as to further reduce transparent conducting film 10 mist degree.
In the present embodiment, the center of gravity of particle 15 is located at particle 15 close to one end of base material 11.
When preparing transparent conducting film 10, need first to lay a layer fluid by way of coating on the surface of base material 11
The adhesive resin of shape；Before treating adhesive resin solidification, prefabricated particle 15 is sprayed thereon；Effect of the particle 15 in gravity
Lower natural subsidence, until in embedded hard conating；Finally, solidify adhesive resin, the hard conating for including particle can be obtained.
Because the center of gravity of particle 15 is located at particle 15 close to one end of base material 11.That is, center of gravity to be present inclined for particle 15
Move.Therefore, similar to the principle of tumbler, particle 15 can be turned over voluntarily under gravity during natural subsidence
Turn, and finally along vertical or be approximately perpendicular to the direction on the surface of base material 11 and be fixed in hard conating.Due to other behaviour need not be taken
Make, can realize that particle 15 is laid according to preset state, therefore the preparation flow of transparent conducting film 10 can be simplified.
In the present embodiment, particle 15 includes solid area and hollow area, and solid area is located at particle close to base material 11
One end, hollow area is located at the other end of particle 15.
Specifically, by setting solid area and hollow area, the middle center of gravity of particle 15 can be made to shift.Moreover,
The mode that hollow area is formed on particle 15 is varied.For example, air blast, phase separation method etc..Therefore, the prefabricated effect of particle 15
Rate is lifted, and then is lifted the preparation efficiency of transparent conducting film 10 and reduced cost.
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, the first metal layer 14 and the surface arithmetic average roughness Ra of second metal layer 24 are 0.0025
~0.025 μm.In addition, the surface of the first metal layer 14, the distribution density of projection 16 is 100~3000/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 roughness and density range, transparent conducting film 10 can preferably take into account resist blocking and that
And optical effect.
Wherein, the first metal layer 14 and the surface arithmetic average roughness Ra and distribution density of second metal layer 24 can pass through
The shape of particle 15, size and content are adjusted to change.
Further, in the present embodiment, along perpendicular to the side of the first metal layer 14 and/or the surface of second metal layer 24
Upwards, multiple raised 16 height are 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 particle 15 is smaller, therefore it is difficult to be accurately controlled each raised 16 height.Therefore, by projection 16
Highly control is in above-mentioned altitude range.It is pointed out that in actual production, due to being difficult to each particle 15
Accurately controlled, therefore the height for having the projection 16 that few partial particulate 15 is formed being difficult to avoid that is located above range
Outside.But influenceed caused by part projection 16 negligible.
In general, the height of projection 16 is higher, then resist blocking and that effect is better.But with the rise of height,
The size of grain 15 so as to cause the haze value of transparent conducting film 10 also to increase therewith, and reaches one mutually in requisition for increase
Determine will to have a strong impact on after degree the optical effect of transparent conducting film 10.And in above-mentioned altitude range, transparent conductivity
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 size of particle 15
Become.
Above-mentioned transparent conducting film 10, particle 15 form the first metal layer 14 and/or the surface of second metal layer 24
Multiple raised 16.Therefore, when crimping above-mentioned transparent conducting film 10, multiple raised 16 can make between two neighboring metal level
Point contact is formed, to prevent adhesion.Moreover, the surface of particle 16 offers multiple strip grooves 151, the surface area of particle 15 increases
Add.Therefore, the contact area increase between the hard conating 12 of particle 15 and first and/or the second hard conating 22, therefore particle 15 is attached
Put forth effort to increase, so as to effectively prevent particle 15 from coming off.
In addition, the utility model also provides a kind of touch screen.Also referring to Fig. 6, in the utility model preferred embodiment
Touch screen 200 as made by the transparent conducting film 10 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 particles, with first metal
The surface of layer and/or the second metal layer forms multiple projections；
Wherein, the surface of the particle offers multiple circumferentially distributed strip grooves along the particle.
2. transparent conducting film according to claim 1, it is characterised in that the particle and first hard conating and
The material of second hard conating is identical.
3. transparent conducting film according to claim 1, it is characterised in that the equal position in both ends of the multiple strip groove
In on the axis through the particle.
4. transparent conducting film according to claim 3, it is characterised in that in the particle perpendicular to the axis
On section, the inner surface contour of the strip groove is triangular in shape.
5. according to the transparent conducting film described in any one of Claims 1-4, it is characterised in that the particle is elongated,
And the particle is more than on the direction parallel to the substrate surface in the size on the direction of the substrate surface
Size.
6. transparent conducting film according to claim 5, it is characterised in that the particle relative to the base material table
Face is vertically arranged, and the strip groove extends along perpendicular to the direction of the substrate surface.
7. transparent conducting film according to claim 5, it is characterised in that the center of gravity of the particle is located at the particle
Close to one end of the base material.
8. transparent conducting film according to claim 7, it is characterised in that the particle includes solid area and hollow
Region, the solid area are located at the particle and are located at the another of the particle close to one end of the base material, the hollow area
One end.
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 |
|---|---|---|---|
| CN201721227326.3U CN207182942U (en) | 2017-09-22 | 2017-09-22 | Transparent conducting film and touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721227326.3U CN207182942U (en) | 2017-09-22 | 2017-09-22 | Transparent conducting film and touch screen |
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| Publication Number | Publication Date |
|---|---|
| CN207182942U true CN207182942U (en) | 2018-04-03 |
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| CN201721227326.3U Active CN207182942U (en) | 2017-09-22 | 2017-09-22 | Transparent conducting film and touch screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111221429A (en) * | 2018-11-26 | 2020-06-02 | 南昌欧菲显示科技有限公司 | Touch module, touch screen and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111221429A (en) * | 2018-11-26 | 2020-06-02 | 南昌欧菲显示科技有限公司 | Touch module, touch screen and preparation method thereof |
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