CN207182940U - Transparent conducting film and touch screen - Google Patents
Transparent conducting film and touch screen Download PDFInfo
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- CN207182940U CN207182940U CN201721221922.0U CN201721221922U CN207182940U CN 207182940 U CN207182940 U CN 207182940U CN 201721221922 U CN201721221922 U CN 201721221922U CN 207182940 U CN207182940 U CN 207182940U
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Abstract
A kind of transparent conducting film is the utility model is related to, contains particle in the first optical adjustment layer and/or the second optical adjustment layer.Particle makes the surface of the first metal layer and/or second metal layer form multiple projections, so that above-mentioned transparent conducting film possesses resist blocking and that function.Further, compared with existing conducting film, above-mentioned transparent conducting film does not include hard conating, and particle is located in optical adjustment layer.On the one hand, film layer structure can be reduced after omitting hard conating, light is blocked so as to mitigate.On the other hand, optical adjustment layer has the function of adjustment optical effect in itself, therefore light is placed through caused refraction during the particle in optical adjustment layer, scattering phenomenon enhancing.The particle size range for being additionally, since particle is 450 to 850 nanometers, therefore scattering of the particle to light is evenly.Therefore, the integral light-transmitting rate increase of above-mentioned transparent conducting film, so as to effectively improving optical effect.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, after particle is added in hard conating, light can be reflected, scatters and blocked when passing through hard conating, from
And cause the integral light-transmitting rate of conducting film to reduce, and then make it that the optical effect of conducting film is poor.
Utility model content
Based on this, it is necessary to asked for the existing transparent conducting film optical effect with resist blocking and that function is poor
Topic, there is provided it is a kind of can effective improving optical effect transparent conducting film and touch screen.
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 optical adjustment layer, the first transparency conducting layer and the first metal layer of the first surface；
It is sequentially formed in the second pH effect, the second transparency conducting layer and second metal layer of the second surface；
Contain multiple particles in first optical adjustment layer and/or second optical adjustment layer, with described first
The surface of metal level and/or the second metal layer forms multiple projections；
Wherein, the particle size range of the particle is 450 to 850 nanometers.
Compared with conventional pilot electrolemma, above-mentioned transparent conducting film does not include hard conating, and particle is located at optical adjustment layer
In (at least one in the first optical adjustment layer and the second optical adjustment layer).On the one hand, film layer knot can be reduced after omitting hard conating
Structure, light is blocked so as to mitigate.On the other hand, function of the optical adjustment layer in itself with adjustment optical effect, therefore light
During the particle being placed through in optical adjustment layer, caused refraction, scattering phenomenon enhancing.The particle diameter for being additionally, since particle is
Nano grade, therefore scattering of the particle to light is evenly.Therefore, the integral light-transmitting rate increase of above-mentioned transparent conducting film, from
And can effectively improving optical effect.
In addition, compared with conventional pilot electrolemma, transparent conducting film can reduce film layer structure after omitting hard conating, so as to letter
The structure of transparent conducting film is changed.Therefore, be advantageous to simplify the processing technology of transparent conducting film and reduce cost.
Further, in traditional conducting film, steam or organic solvent can be discharged in hard conating making technology, so as to
Cause that conductive layer (for example, ITO layer) crystallinity is poor, and sheet resistance is uneven.And transparent conducting film of the present utility model due to
Do not include hard conating, therefore the steam or organic solvent that discharge are reduced, and so as to improve the crystallinity of conductive layer, and then cause it
Sheet resistance is more uniformly distributed.Moreover, because reducing the higher hard conating of fragility, the fragility of transparent conducting film reduces, greatly
Conducting film cutting and winding processing procedure performance are improved, so as to effectively avoid punching from being cracked when opening material greatly.
In one of the embodiments, the particle and first optical adjustment layer and second optical adjustment layer
Material is identical.
That is, the light of particle and the first optical adjustment layer and the second optical adjustment layer (being collectively referred to as optical adjustment layer below)
It is also identical to learn parameter.Therefore, impacted smaller, particle and light are propagated in particle and the linkage interface of optical adjustment layer, light
It is an entirety that it is closer, which to learn adjustment layer,.During when light through the optical adjustment layer containing particle, turned round caused by its round
It is bent smaller.Therefore, 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
To adverse effect.
In one of the embodiments, the material of the particle is silica, organosilicon polymer, acrylic
Thing or styrene polymer.
Above material has the advantage that translucency is good, is easily obtained, can be on the premise of performance requirement is met for particle
Reduce cost.
In one of the embodiments, the particle is spherical in shape or elliposoidal.
Spherical or elliposoidal particle has smooth outer surface.Therefore, the raised outer surface formed is also in accordingly
Even surface.When convexing to form a support to prevent adhesion, raised surface abuts with metal level, and with smooth outer surface
Projection is avoided that damage metal level.In addition, when light passes through the particle with smooth outer surface, by caused by reflecting and scattering
Light path deformation is smaller, therefore can also further walk the optical property for improving transparent conducting film.
In one of the embodiments, the flat site of first optical adjustment layer and second optical adjustment layer
Thickness is 45 to 145 nanometers, and the flat site is that first optical adjustment layer or second optical adjustment layer are not provided with
There is the region of the particle.
Within this range, the pH effect effect of optical adjustment layer is best, can be in bright conductive membrane optical effect
Optimum state.Moreover, when the thickness of flat site is 45 to 145 nanometers, optical adjustment layer can be made preferably to match with particle,
Ensure raised height meet demand while particle insert depth is ensured.
In one of the embodiments, the base material is cyclic olefin polymer film.
Cyclic olefin polymer (COP) is new amorphism polymeric material, and with higher hardness and excellent saturating
Photosensitiveness, but its fragility is very big, therefore often hard conating is coated to improve on two surface, but the way of this inertia is neglected
The side effect brought depending on hard conating to later crystallization.In the present embodiment, due to being added with particle, its intensity in optical adjustment layer
And toughness increase, therefore base material can be played a protective role.Therefore, even if eliminating hard conating, can also COP materials be used to make base
Material, so that base material possesses the characteristic that hardness is high, translucency is good.
In one of the embodiments, the raised distribution density is 100~3000/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 preferably take into account resist blocking and that and optical effect.
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 as the rise of height, the size of particle accordingly need
Increase, so as to cause the haze value of transparent conducting film also to increase therewith, and will serious shadow after reaching to a certain degree
Ring the optical effect of transparent conducting film.And in above-mentioned altitude range, transparent conducting film can preferably be taken into account anti-stick
Company and 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 enlarged diagram of local A in transparent conducting film shown in Fig. 1；
Fig. 3 is the stepped construction schematic diagram of transparent conducting film in another embodiment of the utility model；
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 optical adjustment layer 12, the first transparency conducting layer 13, the first metal layer 14, the second optical adjustment layer 22, the second transparency conducting layer
23 and second metal layer 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.By non-
The thickness for the base material 11 that crystalline substance thin polymer film is formed is 20 μm~200 μm.
First optical adjustment layer 12, the first transparency conducting layer 13 and the first metal layer 14 are sequentially formed in the first of base material 11
Surface.Second optical adjustment layer 22, the second transparency conducting layer 23 and second metal layer 24 are sequentially formed in the second table of base material 11
Face.Wherein：
First optical adjustment layer 12 is used for the optical effect for improving transparent conducting film 10.In rear process, by first
After transparency conducting layer 13 patterns, make the part of the first transparency conducting layer 13 and few without the subtractive of the reflectivity of its part,
The pattern of the first transparency conducting layer 13 is set to be difficult to recognize.
In addition, the first optical adjustment layer 12 is additionally operable to improve refraction situation when light passes through different film layer structures.First
The refractive index of optical adjustment layer 12 is preferably set between the refractive index of base material 11 and the refractive index of the first transparency conducting layer 13
Numerical value.Therefore, transitional function can be played on the propagation path of light.The material for forming the first optical adjustment layer 12 is, for example,
One kind in silicone-based polymers, acrylic polymer, aromatic ring or naphthalene nucleus polymer, zirconium oxide, titanium oxide, antimony oxide
Or several coating.
First transparency conducting layer 13 is formed at the surface of the first optical adjustment layer 12.First transparency conducting layer 13 from
Sheet resistance value (the unit of transmissivity height (more than 80%) and per unit area in light region (380nm~780nm)：Ω/m2)
For 500 Ω/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 optical adjustment layer 22, the second transparency conducting layer 23 and second metal layer 24 respectively with the first light
It is identical to learn film layer structure, the function transitivity of adjustment layer 12, the first transparency conducting layer 13 and the first metal layer 14, therefore herein no longer
Repeat.
In addition, the first optical adjustment layer 12 and/or the second optical adjustment layer 22 contain multiple particles 15, with the first metal
The surface of layer 14 and/or second metal layer 24 forms multiple raised 16.Wherein, the particle size range of particle 15 is received for 450 to 850
Rice.
Specifically, particle 15 can irregularly, can also preset rules (as equably) be distributed in the first pH effect
In the optical adjustment layer 22 of layer 12 and/or second.Particle 15 can be spheroidal particle, or unsetting particle.Particle 15 is in ball
During shape, its particle diameter is its diameter；And particle 15, when being unsetting particle, its particle diameter refers to particle 15 on multiple preset directions
The arithmetic mean of instantaneous value of size.Wherein, particle 15 can be only contained in the first optical adjustment layer 12 or the second optical adjustment layer 22, from
And obtain transparent conducting film 10 of the one side formed with projection 16；Particle 15 also can be contained in the first optical adjustment layer 12
It is interior, also it is contained in the second optical adjustment layer 22, so as to obtain the two-sided transparent conducting film 10 formed with projection 16.
Illustrated by taking the first optical adjustment layer 12 as an example：
Particle 15 protrudes from the surface of the first optical adjustment layer 12, so that the surface of the first optical adjustment layer 12 is formed outside
Convex region, and the region that the first optical adjustment layer 12 is not provided with particle 15 then forms flat site 17.Transparent lead due to first
Electric layer 13 and the first metal layer 14 are cascading the surface with the first optical adjustment layer 12, therefore both surface configurations and the
The surface configuration of one optical adjustment layer 12 is identical.Therefore, in the first metal layer 14 and 14 corresponding region of particle, can be formed multiple
Projection 16.
Similarly, when containing particle 15 in the second optical adjustment layer 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.
Moreover, compared with conventional pilot electrolemma, transparent conducting film 10 does not include hard conating, and particle 15 is located at optics tune
In flood (at least one in the first optical adjustment layer 12 and the second optical adjustment layer 22).On the one hand, can subtract after omitting hard conating
Few film layer structure, is blocked so as to mitigate to light.Moreover, simplifying structure, be advantageous to simplify technique and reduce cost.It is another
Aspect, optical adjustment layer has the function of adjustment optical effect in itself, therefore light is placed through the particle 15 in optical adjustment layer
When, caused refraction, scattering phenomenon enhancing.The particle diameter for being additionally, since particle 15 is Nano grade, therefore particle 15 is to light
Scattering is evenly.
Further, in traditional conducting film, steam or organic solvent can be discharged in hard conating making technology, so as to
Cause that conductive layer (for example, ITO layer) crystallinity is poor, and sheet resistance is uneven.And transparent conducting film 10 of the present utility model by
In not including hard conating, therefore the steam or organic solvent that discharge are reduced, and so as to improve the crystallinity of conductive layer, and then are caused
Its sheet resistance is more uniformly distributed.In addition, because reducing the higher hard conating of fragility, the fragility of transparent conducting film 10 reduces, pole
The earth improves conducting film cutting and winding processing procedure performance, so as to be cracked when effectively avoiding big material of punching.
Specifically in the present embodiment, base material 11 is cyclic olefin polymer film.
Cyclic olefin polymer (COP) is new amorphism polymeric material, and with higher hardness and excellent saturating
Photosensitiveness, but its fragility is very big, therefore often hard conating is coated to improve on two surface, but the way of this inertia is neglected
The side effect brought depending on hard conating to later crystallization.In the present embodiment, due to being added with particle 15 in optical adjustment layer, its is strong
Degree and toughness increase, therefore base material 11 can be played a protective role.Therefore, even if eliminating hard conating, COP material systems can also be used
Make base material 11, so that base material 11 possesses the characteristic that hardness is high, translucency is good.
In the present embodiment, particle 15 is contained in the first optical adjustment layer 12 and the second optical adjustment layer 22, so that the
The surface of one metal level 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 optical adjustment layer 12 and the second optical adjustment layer 22
Containing 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 particle 15 from being overlapped mutually, to mitigate mist degree, so as to further
Lift the optical effect of transparent conducting film 10.
In the present embodiment, particle 15 is identical with the material of the first optical adjustment layer 12 and the second optical adjustment layer 22.
Due to the optical adjustment layer 12 of particle 15 and first and the second optical adjustment layer 22 (being collectively referred to as optical adjustment layer below)
Material is identical, therefore its optical parametric is also identical.Therefore, in the linkage interface of particle 15 and optical adjustment layer, suffered by light is propagated
Influence is smaller, and it is an entirety that particle 15 is closer with optical adjustment layer.Adjusted when light through the first optics containing particle 15
When flood 12 and the second optical adjustment layer 22, distortion is smaller caused by its round.Therefore, transparent conducting film 10 up to
The purpose connect to resist blocking and that, resistance to compression is simultaneously, moreover it is possible to avoids its optical property from being adversely affected.
Specifically in the present embodiment, the material of particle 15 be silica, organosilicon polymer, acrylic polymer or
Styrene polymer.
Above material has the advantage that translucency is good, is easily obtained, and can meet the premise of performance requirement for particle 15
Decline low cost.Certainly, also other suitable materials can be selected according to the performance and cost needs of reality.
Further, in the present embodiment, particle 15 is spherical in shape or elliposoidal.
Spherical or elliposoidal particle 15 has smooth outer surface.Therefore, the outer surface of the projection 16 formed also phase
It should be in even surface.When projection 16 forms point support to prevent adhesion, the surface of projection 16 abuts with metal level, and with smooth
The projection 16 of outer surface is avoided that damage metal level.In addition, light pass through with smooth outer surface particle 15 when, by refraction and
Light path deformation caused by scattering is smaller, therefore can also further walk the optical property for improving transparent conducting film 10.
In the present embodiment, the thickness of the flat site 17 of the first optical adjustment layer 12 and the second optical adjustment layer 12 is 45
To 145 nanometers.
As it was previously stated, flat site 17, which is the first optical adjustment layer 12 or the second optical adjustment layer 22, is not provided with particle 15
Region.Within this range, the pH effect effect of optical adjustment layer is best, at the optical effect that can make bright conductive membrane 10
In optimum state.Moreover, when the thickness of flat site 17 is 45 to 145 nanometers, optical adjustment layer and particle 15 can be made more preferable
Matching, ensure the height meet demand of projection 16 while 15 insert depth of particle is ensured.
In order to realize that more preferably resist blocking and that and resistance to compression connect effect, there is corresponding want for the dense degree of projection 16
Ask.
In the present embodiment, 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 density range, transparent conducting film 10 can preferably take into account resist blocking and that and optics effect
Fruit.
Wherein, the distribution density of projection 16 can be changed by adjusting the shape of particle 15, size and content.
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.Moreover, above-mentioned height also may refer in preset range
The arithmetic mean of instantaneous value of a number of raised 16 height.
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.
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 transparent conducting film 10, multiple raised 16 can make to be formed between two neighboring metal level
Point contact, so as to prevent that its is inter-adhesive.Further, compared with existing conducting film, transparent conducting film 10 does not include hard
Coating, and particle 15 is located in optical adjustment layer.On the one hand, film layer structure can be reduced after omitting hard conating, so as to mitigate to light
Line blocks.On the other hand, optical adjustment layer has the function of adjustment optical effect in itself, therefore light is placed through pH effect
Layer in particle 15 when, it is caused refraction, scattering phenomenon enhancing.The particle diameter for being additionally, since particle 15 is Nano grade, therefore
The scattering of 15 pairs of light of grain is evenly.Therefore, the integral light-transmitting rate increase of transparent conducting film 10, so as to effectively be lifted
Optical effect.
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 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 optical adjustment layer, the first transparency conducting layer and the first metal layer of the first surface；
It is sequentially formed in the second pH effect, the second transparency conducting layer and second metal layer of the second surface；
Characterized in that, contain multiple particles in first optical adjustment layer and/or second optical adjustment layer, with institute
The surface for stating the first metal layer and/or the second metal layer forms multiple projections；
Wherein, the particle size range of the particle is 450 to 850 nanometers.
2. transparent conducting film according to claim 1, it is characterised in that the particle and first pH effect
The material of layer and second optical adjustment layer is identical.
3. transparent conducting film according to claim 2, it is characterised in that the material of the particle be silica,
Organosilicon polymer, acrylic polymer or styrene polymer.
4. transparent conducting film according to claim 2, it is characterised in that the particle is spherical in shape or elliposoidal.
5. transparent conducting film according to claim 1, it is characterised in that first optical adjustment layer and described
The thickness of the flat site of two optical adjustment layers be 45 to 145 nanometers, the flat site be first optical adjustment layer or
Second optical adjustment layer is not provided with the region of the particle.
6. transparent conducting film according to claim 1, it is characterised in that the base material is that cyclic olefin polymer is thin
Film.
7. transparent conducting film according to claim 1, it is characterised in that the raised distribution density be 100~
3000/mm2。
8. 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.
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.
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| CN201721221922.0U CN207182940U (en) | 2017-09-22 | 2017-09-22 | Transparent conducting film and touch screen |
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| CN201721221922.0U CN207182940U (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 |
|---|---|---|---|---|
| CN111665971A (en) * | 2019-03-06 | 2020-09-15 | 南昌欧菲光科技有限公司 | Transparent conductive film, touch screen and preparation method thereof |
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2017
- 2017-09-22 CN CN201721221922.0U patent/CN207182940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665971A (en) * | 2019-03-06 | 2020-09-15 | 南昌欧菲光科技有限公司 | Transparent conductive film, touch screen and preparation method thereof |
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