CN106782772A - Transparent conductive film - Google Patents
Transparent conductive film Download PDFInfo
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- CN106782772A CN106782772A CN201611176061.9A CN201611176061A CN106782772A CN 106782772 A CN106782772 A CN 106782772A CN 201611176061 A CN201611176061 A CN 201611176061A CN 106782772 A CN106782772 A CN 106782772A
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- layer
- conductive film
- hard conating
- transparent conductive
- conductor layer
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
Abstract
The present invention relates to a kind of transparent conductive film, the transparent conductive film has base material, the base material includes first surface and second surface, the first hard conating and the first transparent conductor layer are sequentially formed with the first surface, with the second hard conating and the second transparent conductor layer are sequentially formed with the second surface, at least in first hard conating, the second hard conating shows that upper strata is embedded with multiple particles；First transparent conductor layer, and/or the surface of the second transparent conductor layer has multiple convex portions, the convex portion result from first hard conating and/or the second hard conating surface on be embedded with multiple particles.Both can guarantee that the surface of base material was not readily susceptible to damage by being embedded with multiple particles on the first hard conating, the second hard coating surface, can solve, when batching transparent conductive film and being tubular, to there is a problem of that adjacent transparent conductive film is produced each other with respect to two surfaces and crimp and fold again.
Description
Technical field
The present invention relates to conductive film technical field, the electrically conducting transparent of more particularly, to capacitive touch panel etc. is thin
Film.
Background technology
Current transparent conductive film is mostly to avoid it by setting hard conating on two relative surfaces of base material
Surface is scraped off, and improves the ability of its antisitic defect.
In actual production process, even containing hard conating on two surfaces of transparent conductive film, crimped
When bright conductive film is tubular, there is a problem of that adjacent transparent conductive film surface produces crimping and fold each other.
The content of the invention
Based on this, the present invention is intended to provide a kind of surface that both can guarantee that base material is not readily susceptible to damage, and can solve
When batching transparent conductive film and being tubular, there is adjacent transparent conductive film and produce crimping and pleat each other with respect to two surfaces
The transparent conductive film of the problem of wrinkle.
A kind of transparent conductive film, it has：Base material, the base material includes first surface and second surface, described first
It is sequentially formed with surface on the first hard conating and the first transparent conductor layer, and the second surface and is sequentially formed with the second hard painting
Layer and the second transparent conductor layer, first hard conating show that upper strata is embedded with multiple particles, described away from the base material
Thickness of the particle diameter of grain less than the first hard conating where particle；The surface of first transparent conductor layer has multiple convex portions, institute
State convex portion result from first hard conating surface on be embedded with multiple particles.
Wherein in one embodiment, the particle diameter of the particle is 10nm~1 μm, and first hard conating is hard with/the second
The thickness of coating is 0.5~3 μm.
Wherein in one embodiment, the first optics tune is provided between first transparent conductor layer and the first hard conating
The second optical adjustment layer is provided between flood, and/or second transparent conductor layer and the second hard conating.
Wherein in one embodiment, first transparent conductor layer on the surface of the first optical adjustment layer away from being provided with
The first metal layer, and/or second transparent conductor layer on the surface of the second optical adjustment layer away from being provided with second metal layer.
Wherein in one embodiment, surface insertion multiple particles of second hard conating away from the base material.
Wherein in one embodiment, the first optics tune is provided between first transparent conductor layer and the first hard conating
The second optical adjustment layer is provided between flood, and/or second transparent conductor layer and the second hard conating.
Wherein in one embodiment, first transparent conductor layer on the surface of the first optical adjustment layer away from being provided with
The first metal layer, and/or second transparent conductor layer on the surface of the second optical adjustment layer away from being provided with second metal layer.
A kind of transparent conductive film, it has：Base material, the base material includes first surface and second surface, described first
The first hard conating, the first optical adjustment layer and the first transparent conductor layer are sequentially formed with surface, and the second surface is successively
The second hard conating, the second optical adjustment layer and the second transparent conductor layer are formed with, first optical adjustment layer is away from described
Multiple particles, the thickness of the particle diameter less than the first optical adjustment layer where particle of the particle are embedded with the surface of one hard conating
Degree, the surface of first transparent conductor layer has multiple convex portions, and the convex portion results from the table of first optical adjustment layer
Multiple particles are embedded with face.
Wherein in one embodiment, second optical adjustment layer on the surface of second hard conating away from being embedded with
Multiple particles.
In one of embodiment, the particle diameter of the particle is 50nm~1 μm.
Wherein described first transparent conductor layer away from being provided with the first metal layer on the surface of the first optical adjustment layer, and/
Or second transparent conductor layer on the surface of the second optical adjustment layer away from being provided with second metal layer.
Above-mentioned transparent conductive film can by being embedded with multiple particles on the first hard conating, the second hard coating surface
Ensure that the surface of base material is not readily susceptible to damage, and can solve, when batching transparent conductive film and being tubular, to exist adjacent
Transparent conductive film with respect to two surfaces produce each other crimping and fold problem.
Brief description of the drawings
The schematic cross-section of the transparent conductive film that Fig. 1 is provided by first embodiment of the invention.
The schematic cross-section of the transparent conductive film that Fig. 2 is provided by second embodiment of the invention.
The schematic cross-section of the transparent conductive film that Fig. 3 is provided by third embodiment of the invention.
The schematic cross-section of the transparent conductive film that Fig. 4 is provided by fourth embodiment of the invention.
The schematic cross-section of the transparent conductive film that Fig. 5 is provided by fifth embodiment of the invention.
The schematic cross-section of the transparent conductive film that Fig. 6 is provided by sixth embodiment of the invention.
The schematic cross-section of the transparent conductive film that Fig. 7 is provided by seventh embodiment of the invention.
The schematic cross-section of the transparent conductive film that Fig. 8 is provided by eighth embodiment of the invention.
The schematic cross-section of the transparent conductive film that Fig. 9 is provided by ninth embodiment of the invention.
The schematic cross-section of the transparent conductive film that Figure 10 is provided by tenth embodiment of the invention.
Specific embodiment
The transparent conductive film that the present invention is provided can be used for mobile phone, panel computer etc. needs the aobvious of capacitance type touch-control panel
Show terminal.
As shown in figure 1, the transparent conductive film 10 in the present invention in first embodiment possesses base material 11, the first hard conating
12nd, the first transparent conductor layer 14, the second hard conating 22 and the second transparent conductor layer 24.The base material 11 includes first surface and the
Two surfaces, the first hard conating 12 and the first transparent conductor layer 14 are successively set on the first surface of base material 11 (i.e. upper table in Fig. 1
Face), the second hard conating 22 and the second transparent conductor layer 24 are arranged on the second surface of base material 11 (i.e. lower surface in Fig. 1).
First hard conating 12 is embedded with multiple particles 16 away from the surface of the base material 11, and the second hard conating 22 away from described
The surface of base material 11 is not embedded in particle.Thickness of the particle diameter of particle 16 less than the first hard conating 12 where the particle 16
Degree.Heretofore described particle 16 be embedded the first hard conating 12 away from the surface of the base material 11 refer to particle 16 only have portion
Divide in the first hard conating 12 of embedment, during also the first hard conating 12 is not imbedded in part, i.e., particle 16 is also partially in what is exposed
State.
Base material 11 can be formed by amorphism thin polymer film or crystalline polymer film.Because the material of base material 11
Can be amorphism material or crystallinity material, therefore can flexibly be selected according to actual needs in actual production process
Select, so as to reduce production cost.The surface away from base material 11 of the first hard conating 12 is embedded with multiple particles 16, and particle 16 can
To be irregularly embedded on the surface away from base material 11 of the first hard conating 12, the regular example that certain particle 16 can also be certain
As being equably embedded on the surface away from base material 11 of the first hard conating 12, thus the first hard conating 12 away from base material 11
The part that particle 16 is embedded with surface can be raised relative to the part for not being embedded with particle 16.Due to the first transparent conductor layer 14
The first hard conating 12 is arranged on away from the surface of base material 11, so the surface configuration of the first transparent conductor layer 14 reflects first
Hard conating 12 away from the surface configuration of base material 11, there is convex portion 18 having at the position of particle 16, and be free of at the position of particle 16
It is flat；Because the second transparent conductor layer 24 is arranged on surface of second hard conating 22 away from base material 11, so second is saturating
The surface configuration of bright conductor layer 24 reflect the second hard conating 12 away from the surface configuration of base material 11, so the second transparent conductor layer
24 whole surface is all flat.Distribution density of the convex portion 18 in the first hard conating 12 is 50~5000/mm2。
In some embodiments that the present invention has, the first hard conating 12, the thickness of the second hard conating 22 be preferably 500nm~
3000nm, is easy to, in the case where ensureing that transparent conductive film damage-resistant can not be reduced, reduce the integral thickness of conductive film,
Ultrathin electronic product or mobile terminal offer condition are provided for follow-up.
In certain embodiments, the particle diameter of the particle 16 is 10nm~1 μm.Due to causing when the particle diameter too conference of particle 16
The haze value of transparent conductive film 10 is excessive, makes the reduction of its light transmission rate, has a strong impact on the outward appearance and light of transparent conductive film 10
Learn effect；And when the particle diameter of particle 16 is too small, its resistance to compression connects and pleat when transparent conductive film 10 can be caused to be wound into tubular again
The ability of wrinkle declines, and causes the bad problem of crimping to increase, and does not reach expected effect, therefore the particle diameter of particle is arranged on
10nm~1 μm, both can guarantee that the effect of the anti-crimping of transparent conductive film 10, there is the mist degree that can cause transparent conductive film 10
Value will not be improved too much, so that reducing its light transmission rate, influence light effects.
In certain embodiments, particle is and its a diameter of 10nm~1 μm 16 for spherical.Spherical particle can in the present invention
To reduce technology difficulty, be suitable to batch production, in addition spherical particle 16 can reduce conductive film when tubular is wound into due to
The sharp profile of unsetting particle punctures the appearance of conductive film phenomenon, improves production yield, reduces cost.
The first hard conating 12 on the surface of base material away from being embedded with having the beneficial effect that for particle 16 in the present invention：Can cause
The surface for being arranged on first transparent conductor layer 14 on its surface forms raised 18, therefore transparent conductive film can be prevented to be wound into
During tubular, the two relative surfaces of transparent conductive film 10 be raised 18 and second hard conating 24 surface contact, be point and
The contact in face, rather than contact face-to-face, therefore can reduce the crimping damage of transparent conductive film.
The base material 11 of transparent conductive film of the invention 10 ought use birefringence small and uniform amorphism polymer
During film, therefore can solve the problems, such as that the irregular colour in transparent conductive film 10 is even.Due to the table of the first transparent conductor layer 14
Face has a convex portion 18, therefore when 10 one-tenth tubulars of transparent conductive film are wound, the first transparent conductor layer 14 and the second conductor layer 24
As point and face contact.Thus can reduce by the first conductor layer 14 to be crimped with the generation of the second conductor layer 24.
Damage, crimping in order to avoid transparent conductive film of the invention 10, using volume to volume technique (roll to
Roll process) manufacture the transparent conductive film 10 of strip.Furthermore it is possible to be wound into the transparent conductive film 10 of strip
Transparent conductive film cylinder form preserved, transported and processed.Therefore the production of transparent conductive film of the invention 10 is imitated
Rate is high.
Transparent conductive film 20 in second embodiment of the invention is as shown in Figure 2.Transparent conductive film 20 and first is implemented
Transparent conductive film 10 in example is essentially identical, and difference is：Transparent conductive film 20 is in the He of the first transparent conductor layer 14
The first optical adjustment layer 13 is provided between first hard conating 12, is set between the second transparent conductor layer 24 and the second hard conating 22
It is equipped with the second optical adjustment layer 23.In other embodiments, it is also possible to only in the first transparent conductor layer 14 and the first hard conating 12
Between be provided with the first optical adjustment layer 13 or be only provided between the second transparent conductor layer 24 and the second hard conating 22
Second optical adjustment layer 23.So can be with Simplified flowsheet, material-saving.
In some other embodiments of the invention, the first optical adjustment layer 13 and/or the second optical adjustment layer 23 be containing
In having a silicone-based polymers, acrylic polymer, aromatic ring or naphthalene nucleus polymer, zirconium oxide, titanium oxide, antimony oxide etc.
The coating of one or more, can select suitable pH effect layer material according to needs of production.
After first optical adjustment layer 13 can pattern the first transparent conductor layer 14 in rear operation, make to have first transparent
The subtractive of the reflectivity of the part of conductor layer 14 and the part without it is few, makes the pattern of the first transparent conductor layer 14 be difficult to distinguish
Recognize, improve light transmission rate.The function of the second optical adjustment layer 23 is also identical.
The thickness of the first optical adjustment layer 13 and/or the second optical adjustment layer 23 is preferably 100nm~2000nm, is easy to
In the case that guarantee transparent conductive film light transmittance is not reduced, the integral thickness of conductive film can be as far as possible reduced, be follow-up
Ultrathin electronic product is provided or mobile terminal provides condition.
Transparent conductive film 30 in third embodiment of the invention is as shown in Figure 3.Transparent conductive film 30 and second is implemented
Transparent conductive film 20 in example is essentially identical, and difference is：Transparent conductive film 30 is in its first transparent conductor layer 14
Away from the first metal layer 15 is provided with the surface of the first optical adjustment layer 13, in second transparent conductor layer 24 away from second
Second metal layer 25 is provided with the surface of optical adjustment layer 23.In other embodiments of the present invention, it is also possible to which first transparent leads
Body layer 14 on the surface of the first optical adjustment layer 13 away from being provided with the first metal layer 15 or only the second transparent conductor layer 24 is remote
Second metal layer 25 is provided with the surface of the second optical adjustment layer 23.So can be with Simplified flowsheet, material-saving.
Be provided with the first metal layer 15 in transparent conductive film 30 and second metal layer 25 be easy to will be of the invention transparent
When conductive membrane 30 is used for touch panel, electrode cabling is formed for the non-display area in touch panel.Can so keep away
Exempt to make side using with the larger material of transparent conductor layer (14 or 24) identical impedance (that conventional is tin indium oxide (ITO))
Frame electrode cabling, and cause the sensitivity of signal transmission to decline, the increased problem of power consumption.
Transparent conductive film 40 in fourth embodiment of the invention is as shown in Figure 4.Transparent conductive film 40 and first is implemented
Transparent conductive film 10 in example is essentially identical, and difference is：Transparent conductive film 40 is in its second hard conating away from base
The surface of material 11 is embedded with multiple particles 26.Particle 26 can irregularly be distributed the table away from base material 11 of the second hard conating 22
On face, the rule that certain particle 26 can also be certain is for example evenly distributed the surface away from base material 11 of the second hard conating 22
On, thus in the surface away from base material 11 of the second hard conating 22 part containing particle 26 can be relative to the portion without particle 16
Divide projection.Because the second transparent conductor layer 24 is arranged on surface of second hard conating 22 away from base material 11, so second is transparent
The surface configuration of conductor layer 24 reflect the second hard conating 22 away from the surface configuration of base material 11, have having at the position of particle 26
Convex portion 28, and it is flat to be free of at the position of particle 26 27；Distribution density of the convex portion 28 in the second hard conating 22 be
50~5000/mm2.The properties such as the material and particle diameter of particle 26 and particle 16 are identicals.
Relative to the transparent conductive film 10 in first embodiment, transparent conductive film 40 in fourth embodiment, first
Hard conating 12 can make away from particle is embedded with the surface of base material 11 and on surface of second hard conating 22 away from base material 11
The surface for obtaining the surface of the first transparent conductor layer 14 and the second transparent conductor layer 24 forms raised 18 and 28 respectively, therefore can prevent
When transparent conductive film 40 is wound into tubular, the two relative surfaces of transparent conductive film 40 are raised 18 and raised 28 phase mutual connection
Touch, be the contact of point and point, rather than point-to-area contact, therefore can further improve the anti-crimping effect of transparent conductive film
Really.
Transparent conductive film 50 in fifth embodiment of the invention is as shown in Figure 5.Transparent conductive film 50 and the 4th is implemented
Transparent conductive film 40 in example is essentially identical, and difference is：Transparent conductive film 50 is in the He of the first transparent conductor layer 14
The first optical adjustment layer 13 is provided between first hard conating 12, is set between the second transparent conductor layer 24 and the second hard conating 22
It is equipped with the second optical adjustment layer 23.In other embodiments, it is also possible to only in the first transparent conductor layer 14 and the first hard conating 12
Between be provided with the first optical adjustment layer 13 or be only provided between the second transparent conductor layer 24 and the second hard conating 22
Second optical adjustment layer 23.So can be with Simplified flowsheet, material-saving.
After first optical adjustment layer 13 can pattern the first transparent conductor layer 14 in rear operation, make to have first transparent
The subtractive of the reflectivity of the part of conductor layer 14 and the part without it is few, makes the pattern of the first transparent conductor layer 14 be difficult to distinguish
Recognize, improve light transmission rate.The function of the second optical adjustment layer 23 is also identical.
The thickness of the first optical adjustment layer 13 and/or the second optical adjustment layer 23 is preferably 100nm~2000nm, is easy to
In the case that guarantee transparent conductive film light transmittance is not reduced, the integral thickness of conductive film can be as far as possible reduced, be follow-up
Ultrathin electronic product is provided or mobile terminal provides condition.
Transparent conductive film 60 in sixth embodiment of the invention is as shown in Figure 6.Transparent conductive film 60 and the 5th is implemented
Transparent conductive film 50 in example is essentially identical, and difference is：Transparent conductive film 60 is in its first transparent conductor layer 14
Away from the first metal layer 15 is provided with the surface of the first optical adjustment layer 13, in second transparent conductor layer 24 away from second
Second metal layer 25 is provided with the surface of optical adjustment layer 23.In other embodiments of the present invention, it is also possible to which first transparent leads
Body layer 14 on the surface of the first optical adjustment layer 13 away from being provided with the first metal layer 15 or only the second transparent conductor layer 24 is remote
Second metal layer 25 is provided with the surface of the second optical adjustment layer 23.So can be with Simplified flowsheet, material-saving.
Be provided with the first metal layer 15 in transparent conductive film 60 and second metal layer 25 be easy to will be of the invention transparent
When conductive membrane 60 is used for touch panel, electrode cabling is formed for the non-display area in touch panel.Can so keep away
Exempt to make side using with the larger material of transparent conductor layer (14 or 24) identical impedance (that conventional is tin indium oxide (ITO))
Frame electrode cabling, and cause the sensitivity of signal transmission to decline, the increased problem of power consumption.
Transparent conductive film 70 in seventh embodiment of the invention is as described in Figure 7.Transparent conductive film 70 and second is implemented
Transparent conductive film 20 in example is essentially identical, and difference is：It 16 is to be embedded that particle in transparent conductive film 70 is
, away from the surface of the first hard conating 12, the particle diameter of the particle 16 is less than first where particle 16 for first optical adjustment layer 13
The thickness of optical adjustment layer 13.Particle 16 described in the present embodiment is embedded in the first optical adjustment layer 32 away from first light
The surface for learning adjustment layer 13 refers to that particle 16 is only partly embedded into the first optical adjustment layer 13, and also the first light is not imbedded in part
Learn in adjustment layer 13, i.e., particle 16 also has the state for being partially in and exposing.
Relative to transparent conductive film 12, for, transparent conductive film 70 is embedded in the first pH effect by particle 16
Layer 13 is uniform away from the thickness that can ensure the first hard conating 12 on the surface of the first hard conating 12, is ensureing its injury-resistance
May insure to form convex portion 18 on the surface of the first transparent conductor 14 in the case of not reducing so that transparent conductive film 70 is wound into
Its resistance to compression connects constant with fold ability during tubular.
Transparent conductive film 80 in eighth embodiment of the invention is as described in Figure 8.Transparent conductive film 80 and the 7th is implemented
Transparent conductive film 70 in example is essentially identical, and difference is：Transparent conductive film 70 is in its first transparent conductor layer 14
Away from the first metal layer 15 is provided with the surface of the first optical adjustment layer 13, in second transparent conductor layer 24 away from second
Second metal layer 25 is provided with the surface of optical adjustment layer 23.In other embodiments of the present invention, it is also possible to which first transparent leads
Body layer 14 on the surface of the first optical adjustment layer 13 away from being provided with the first metal layer 15 or only the second transparent conductor layer 24 is remote
Second metal layer 25 is provided with the surface of the second optical adjustment layer 23.So can be with Simplified flowsheet, material-saving.
Be provided with the first metal layer 15 in transparent conductive film 80 and second metal layer 25 be easy to will be of the invention transparent
When conductive membrane 80 is used for touch panel, electrode cabling is formed for the non-display area in touch panel.Can so keep away
Exempt to make side using with the larger material of transparent conductor layer (14 or 24) identical impedance (that conventional is tin indium oxide (ITO))
Frame electrode cabling, and cause the sensitivity of signal transmission to decline, the increased problem of power consumption.
Transparent conductive film 90 in ninth embodiment of the invention is as described in Figure 9.Transparent conductive film 90 and the 7th is implemented
Transparent conductive film 70 in example is essentially identical, and difference is：Transparent conductive film 90 is in its second optical adjustment layer 23
Surface away from the second hard conating 22 is embedded with multiple particles 26.Particle 26 can irregularly be distributed the second optical adjustment layer 23
The second pH effect is for example evenly distributed away from the rule that on the surface of the second hard conating 22, certain particle 26 can also be certain
On the surface away from the second hard conating 22 of layer 23, therefore the second optical adjustment layer 23 in the surface of the second hard conating 22 away from containing
The part for having particle 26 can be raised relative to the part without particle 26.Because the second transparent conductor layer 24 is arranged on the second optics
Adjustment layer 23 away from the surface of the second hard conating 22, so the surface configuration of the second transparent conductor layer 24 reflects the second optics
Adjustment layer 23 has convex portion 28 away from the surface configuration of the second hard conating 22 having at the position of particle 26, and is free of the position of particle 26
The place of putting 27 is flat；Distribution density of the convex portion 28 in the second optical adjustment layer 22 is 50~5000/mm2.Particle
The properties such as 26 material and particle diameter and particle 16 are identicals.
Relative to the transparent conductive film 70 in the 7th embodiment, transparent conductive film 90 in the 9th embodiment, first
Optical adjustment layer 13 away from the surface of the first hard conating 12 and the second pH effect layer by layer 23 away from the second hard conating 22 table
Particle is embedded with face, can cause that the surface of the first transparent conductor layer 14 and the surface of the second transparent conductor layer 24 are formed respectively
Raised 18 and 28, therefore when transparent conductive film 90 can be prevented to be wound into tubular, the two relative tables of transparent conductive film 90
Face is that raised 18 and raised 28 contact with each other, and is the contact of point and point, rather than point-to-area contact, therefore can further be carried
The anti-crimping effect of high transparency conductive film.
Transparent conductive film 100 in tenth embodiment of the invention is as described in Figure 10.Transparent conductive film 100 and the 9th is real
The transparent conductive film 90 applied in example is essentially identical, and difference is：Transparent conductive film 100 is in its first transparent conductor layer
14 on the surface of the first optical adjustment layer 13 away from the first metal layer 15 is provided with, in second transparent conductor layer 24 away from
Second metal layer 25 is provided with the surface of two optical adjustment layers 23.In other embodiments of the present invention, it is also possible to which first is transparent
Conductor layer 14 on the surface of the first optical adjustment layer 13 away from being provided with the first metal layer 15 or only the second transparent conductor layer 24
Away from being provided with second metal layer 25 on the surface of the second optical adjustment layer 23.So can be with Simplified flowsheet, material-saving.
Be provided with the first metal layer 15 in transparent conductive film 100 and second metal layer 25 be easy to will be of the invention transparent
When conductive membrane 100 is used for touch panel, electrode cabling is formed for the non-display area in touch panel.Can so keep away
Exempt to make side using with the larger material of transparent conductor layer (14 or 24) identical impedance (that conventional is tin indium oxide (ITO))
Frame electrode cabling, and cause the sensitivity of signal transmission to decline, the increased problem of power consumption.
In some embodiments of the invention, the first hard conating 12, the second hard conating 22 all contain adhesion resin, and two
The refractive index of one of person or both is 1.35~2.0, preferably 1.35~1.65.It is described in other embodiment
First refractive index adjustment layer 13, the second refractive index adjustment layer 23 also contain adhesion resin, and one of both or the light of two
Refractive index is 1.5~2.0, preferably 1.55~1.85.By being provided with the hard conating and refractive index adjustment layer of above refractive index,
The light transmittance of conductive film 10 can be improved, raising visual effect provides condition in being applied to contact panel for follow-up its.
Base material
Base material 11 can be formed by amorphism thin polymer film or crystalline polymer film.It is preferred that by amorphism polymer
Film is formed.Because amorphism thin polymer film is smaller and uniform than crystalline polymer film birefringence, the present invention can be eliminated
Transparent conductive film in irregular colour it is even.It is preferred for the birefringence in the face of amorphism thin polymer film of the invention
It is 0~0.001, more preferably 0~0.0005.For the birefringence in the face of amorphism thin polymer film of the invention
Deviation be preferably less than 0.0005, more preferably less than 0.0003.Foregoing birefringence and its deviation can be by selections
The amorphism thin polymer film of suitable species and reach.
The material for forming amorphism thin polymer film has no particular limits, preferably makrolon or polycyclic alkene or poly-
Acid imide.The thickness of the base material 11 formed by amorphism thin polymer film is, for example, 20 μm~200 μm.Amorphism thin polymer film
Can also be on surface with the thin easy tack coat (not shown) for for example being formed by polymer such as polyurethane or polyacrylates.
Hard conating
First hard conating 12 is formed on the first surface of base material 11, and the second hard conating 22 is formed in the second table of base material 11
On face.The hard conating 22 of first hard conating 12 and second includes resin glue.The resin glue is included and is for example based on
The hardening resin composition of ultraviolet, electron ray.Hardening resin composition preferably comprises glycidyl acrylate system
Polymer carries out polymer obtained from addition reaction with acrylic acid.Or, hardening resin composition preferably comprises multifunctional
Acrylate polymer (pentaerythrite, dipentaerythritol etc.).Hardening resin composition also includes polymerization initiator.First is hard
Coating 12, the thickness of the second hard conating 22 are 500nm-3000nm.
First hard conating 12 of transparent conductive film dorsad on the surface of base material 11, the second hard conating 22 dorsad base material 11
Multiple particles 16,26 are embedded with surface.The particle 16,26 is the forming process in the first hard conating 12 and the second hard conating 22
It is middle be embedded respectively on the surface in the first hard conating 12 away from base material 11, on surface of second hard conating 22 away from base material 11.
Grain 16 and 26 is for example formed by acrylic polymer, organosilicon polymer, styrene polymer or inorganic silicon dioxide.
The shape of grain 16 and 26 is for example, spherical.When particle 16 and 26 is spherical, its diameter is preferably 10nm~1 μm.When particle 16
With 26 for it is spherical when (for example, unsetting), its height (size in the direction vertical with the surface of base material 11) be preferably 10nm
~1 μm.(when for example, unsetting), the preferred height are that most frequency particle diameter (represents particle diameter point when particle 16 and 26 is not spherical
The particle diameter of the maximum of cloth) it is preferred.
The arithmetic average roughness Ra on the surface of the first hard conating 12 is preferably 0.0005 μm~0.05 μm, maximum height Rz
Preferably 0.05 μm~2.5 μm.The arithmetic average roughness Ra and maximum height Rz on the surface of the second hard conating 22 are also same
Sample.
Optical adjustment layer
Transparent conductive film in some embodiments of the present invention, the first hard conating 12 and the first transparent conductor layer 14 it
Between have the first optical adjustment layer 13 (index matching layer).In addition, in the second hard conating 22 and the 2nd transparent conductor
There is the 2nd optical adjustment layer 23 between layer 24.On the first optical adjustment layer 13, by the first transparent conductor layer 14 in rear operation
After patterning, make the subtractive of the reflectivity of the part and part without it for having the first transparent conductor layer 14 few, make first transparent
The pattern of conductor layer 14 is difficult to recognize.The function of the second optical adjustment layer 23 is also identical.
The optics of the first optical adjustment layer 13 is preferably set at the optics and the first transparent conductor layer of the first hard conating 12
Numerical value between 14 optics.Form material for example, silicone-based polymers, the esters of acrylic acid of the first optical adjustment layer 13
One or several coating in polymer, aromatic ring or naphthalene nucleus polymer, zirconium oxide, titanium oxide, antimony oxide.First optics is adjusted
The thickness of flood 13 is 100nm~2000nm.For the second optical adjustment layer 23 similarly.
Transparent conductor layer
When without the first optical adjustment layer 13, the first transparent conductor layer 14 is formed on the first hard conating 12.Have first
During optical adjustment layer 13, the first transparent conductor layer 14 is formed on the surface of the first optical adjustment layer 13.First transparent conductor layer
14 by transmissivity (more than 80%) high and per unit area in visible region (380nm~780nm) sheet resistance value
(unit：Ω/m2：Ohms per square) it is 500 Ω/m2Following layer is formed.The thickness of the first transparent conductor layer 14 is preferred
15nm~100nm, more preferably 15nm~50nm.First transparent conductor layer 14 is for example by indium tin oxide (ITO：Indium
Tin Oxide), any one formation of indium tin oxide or indium oxide-zinc oxide composites.The shape of second transparent conductor layer 24
Into on the surface in the second optical adjustment layer 23 away from the 2nd hard conating 23.The physical property of the second transparent conductor layer 24, material and first
Transparent conductor layer 14 is identical.During without the second optical adjustment layer 23, the second transparent conductor layer 24 is formed in the second hard conating 22
On surface.When having the second optical adjustment layer 23, the second transparent conductor layer 24 is formed on the surface of the second optical adjustment layer 23.The
The physical property of two transparent conductor layers 24, material are identical with the first transparent conductor layer 14.
Metal level
The first metal layer 15 is formed on the surface of the first transparent conductor layer 14.The first metal layer 15 is of the invention transparent
When conductive membrane is used for such as touch panel, connected up for being formed in the outside of touch input area.On forming the first gold medal
Belong to the material of layer 15, representational is copper, silver, it is possible to use the arbitrary metal of excellent electric conductivity in addition.First
The thickness of metal level 15 is preferably 50nm~500nm, more preferably 100nm~300nm.It is saturating that second metal layer 25 is formed in second
On the surface of bright conductor layer 24.The purposes of second metal layer 25, material, thickness are identical with the first metal layer 15.
The surface of the first metal layer 15 is similar with the surface configuration of the first transparent conductor layer 14, with the convex of random distribution
Portion 18.The difference density of convex portion 18 is preferably 100/mm2~2000/mm2, more preferably 100/mm2~1000/mm2。
The arithmetic average roughness Ra on the surface of the first metal layer 15 is preferably 0.005 μm~0.05 μm, more preferably 0.005 μm~
0.03μm.The maximum height Rz on the surface of the first metal layer 15 is preferably 0.5 μm~2.5 μm, more preferably 0.5 μm~2.0 μm.
The arithmetic average roughness Ra and maximum height Rz on the surface of the first metal layer 15 can by adjust the shape of particle 16, size with
And content changes.The surface configuration of the second transparent conductor layer 24 is reflected on the surface of second metal layer 25, with irregularly dividing
The convex portion 28 of cloth.The surface roughness of second metal layer 25 is identical with the surface roughness of the first metal layer 15.
When winding transparent conducting film 60 of the invention, the surface of the first metal layer 15 and the surface of second metal layer 25
Contact.There is the convex portion 18 being irregularly distributed on the surface of the first metal layer 15, and the surface of second metal layer 25 whether there is regular distribution
Convex portion 28.Therefore, the surface of the first metal layer 15 turns into point with the surface of second metal layer 25 and point is contacted.Thus, can prevent
Only the first metal layer 15 and second metal layer 25 are crimped.
Manufacture method
An example to the manufacture method of transparent conductive film of the invention 60 is illustrated.The particle 16,26 be
The surface away from base material 11 in the first hard conating 12 is embedded in the forming process of the first hard conating 12 and the second hard conating 22 respectively
Upper, the second hard conating 22 is away from the surface of base material 11..Surface coated optical regulator then in the first hard conating 12,
In the surface coated optical regulator of the second hard conating 22.Then it is hard to the pH effect agent on the first hard conating 12 and second to apply
Layer 22 on pH effect agent irradiation ultraviolet radiation and make pH effect agent solidify, formed the first optical adjustment layer 13 and the second optics
Adjustment layer 23.Followed by sputtering method etc. the first transparent conductor layer 14 and are stacked gradually on the surface of the first optical adjustment layer 13
One metal level 15.First transparent conductor layer 14 and the first metal layer 15 can be by setting transparent conductor layer target in sputter equipment
Material and metal level target and be continuously laminated.Surface to the second optical adjustment layer 23 similarly operates, and stacks gradually
Two transparent conductor layers 24 and second metal layer 25.
The present invention both can guarantee that base material by being embedded with multiple particles on the first hard conating, the second hard coating surface
Surface is not readily susceptible to damage, and can solve, when batching transparent conductive film and being tubular, there is adjacent electrically conducting transparent
Film produces the problem of crimping and fold with respect to two surfaces each other.Additionally by being provided with the first optical adjustment layer and the second optics
Adjustment layer can adjust in its optical index, the light transmittance of conductive film can be improved, to improve the visual of its application product
Effect, strengthens Consumer's Experience.
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 of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (11)
1. a kind of transparent conductive film, it has：
Base material, the base material includes first surface and second surface,
The first hard conating and the first transparent conductor layer are sequentially formed with the first surface, and
The second hard conating and the second transparent conductor layer are sequentially formed with the second surface, it is characterised in that：Described first is hard
, away from multiple particles are embedded with the surface of the base material, the particle diameter of the particle is less than the first hard conating where particle for coating
Thickness；
The surface of first transparent conductor layer has multiple convex portions, the convex portion result from first hard conating surface on
It is embedded with multiple particles.
2. transparent conductive film according to claim 1, it is characterised in that：The particle diameter of the particle is 10nm~1 μm, institute
The thickness for stating the first hard conating and the/the second hard conating is 0.5~3 μm.
3. transparent conductive film according to claim 1, it is characterised in that：First transparent conductor layer and the first hard painting
It is provided between the first optical adjustment layer, and/or second transparent conductor layer and the second hard conating between layer and is provided with second
Optical adjustment layer.
4. transparent conductive film according to claim 3, it is characterised in that：First transparent conductor layer is away from the first light
The first metal layer, and/or second transparent conductor layer are provided with away from the second optical adjustment layer on the surface for learning adjustment layer
Second metal layer is provided with surface.
5. transparent conductive film according to claim 1, it is characterised in that：Second hard conating is away from the base material
The multiple particles of surface insertion.
6. transparent conductive film according to claim 5, it is characterised in that：First transparent conductor layer and the first hard painting
It is provided between the first optical adjustment layer, and/or second transparent conductor layer and the second hard conating between layer and is provided with second
Optical adjustment layer.
7. transparent conductive film according to claim 6, it is characterised in that：First transparent conductor layer is away from the first light
The first metal layer, and/or second transparent conductor layer are provided with away from the second optical adjustment layer on the surface for learning adjustment layer
Second metal layer is provided with surface.
8. a kind of transparent conductive film, it has：
Base material, the base material includes first surface and second surface,
The first surface is sequentially formed with the first hard conating, the first optical adjustment layer and the first transparent conductor layer, and
The second surface is sequentially formed with the second hard conating, the second optical adjustment layer and the second transparent conductor layer, and its feature exists
In：First optical adjustment layer on the surface of first hard conating away from being embedded with multiple particles, the particle diameter of the particle
The thickness of the first optical adjustment layer where less than particle,
The surface of first transparent conductor layer has multiple convex portions, and the convex portion results from the table of first optical adjustment layer
Multiple particles are embedded with face.
9. transparent conductive film according to claim 8, it is characterised in that：Second optical adjustment layer is away from described
Multiple particles are embedded with the surface of two hard conatings.
10. transparent conductive film according to claim 8 or claim 9, it is characterised in that：The particle diameter of the particle is 50nm~1 μ
m。
11. transparent conductive films according to claim 8, it is characterised in that：First transparent conductor layer is away from first
The first metal layer, and/or second transparent conductor layer are provided with the surface of optical adjustment layer away from the second optical adjustment layer
Surface on be provided with second metal layer.
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| CN201611176061.9A CN106782772A (en) | 2016-12-19 | 2016-12-19 | Transparent conductive film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611176061.9A CN106782772A (en) | 2016-12-19 | 2016-12-19 | Transparent conductive film |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545437A (en) * | 2017-09-22 | 2019-03-29 | 南昌欧菲显示科技有限公司 | Transparent conductive film, touch screen and preparation method thereof |
| CN109545432A (en) * | 2017-09-22 | 2019-03-29 | 南昌欧菲显示科技有限公司 | Transparent conductive film, touch screen and preparation method thereof |
| CN111782091A (en) * | 2019-04-04 | 2020-10-16 | 南昌欧菲显示科技有限公司 | Transparent conductive film and touch panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135870A (en) * | 2011-11-24 | 2013-06-05 | 日东电工株式会社 | Transparent conductive film |
| CN206293175U (en) * | 2016-12-19 | 2017-06-30 | 南昌欧菲显示科技有限公司 | Transparent conductive film |
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2016
- 2016-12-19 CN CN201611176061.9A patent/CN106782772A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135870A (en) * | 2011-11-24 | 2013-06-05 | 日东电工株式会社 | Transparent conductive film |
| CN206293175U (en) * | 2016-12-19 | 2017-06-30 | 南昌欧菲显示科技有限公司 | Transparent conductive film |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545437A (en) * | 2017-09-22 | 2019-03-29 | 南昌欧菲显示科技有限公司 | Transparent conductive film, touch screen and preparation method thereof |
| CN109545432A (en) * | 2017-09-22 | 2019-03-29 | 南昌欧菲显示科技有限公司 | Transparent conductive film, touch screen and preparation method thereof |
| CN109545437B (en) * | 2017-09-22 | 2021-07-30 | 南昌欧菲显示科技有限公司 | Transparent conductive film, touch screen and preparation method thereof |
| CN109545432B (en) * | 2017-09-22 | 2021-08-10 | 南昌欧菲显示科技有限公司 | Transparent conductive film, touch screen and preparation method thereof |
| CN111782091A (en) * | 2019-04-04 | 2020-10-16 | 南昌欧菲显示科技有限公司 | Transparent conductive film and touch panel |
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