CN105446555B - Nano-silver thread conductive laminate structure and touch panel - Google Patents
Nano-silver thread conductive laminate structure and touch panel Download PDFInfo
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- CN105446555B CN105446555B CN201410260600.1A CN201410260600A CN105446555B CN 105446555 B CN105446555 B CN 105446555B CN 201410260600 A CN201410260600 A CN 201410260600A CN 105446555 B CN105446555 B CN 105446555B
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Abstract
A kind of touch panel uses a kind of nano-silver thread conductive laminate structure, which includes a substrate, and a nano-silver thread conductive electrode layer is set to the substrate top and an adherence protective layer.The adherence protective layer is set on the nano-silver thread conductive electrode layer; including transparent sticky material and transparent dielectric material; the refractive index of the nano-silver thread conductive electrode layer is n1; the refractive index of the adherence protective layer is nf; the refractive index of the substrate is nt, and product of the n1 equal to nf and nt opens radical sign.It is more suitable for the demand lightening now for product using the touch panel of the nano-silver thread conductive laminate structure, and its manufacturing method also simplifies very much.
Description
[technical field]
The present invention relates to a kind of conductive laminate structure, in particular to a kind of nano-silver thread conductive laminate structure and received using this
The touch panel of rice silver wire conductive laminate structure.
[background technique]
The advantages that touch control device is operated because of it, imaging effect is good, function diversification is gradually by electronic communication industry
Favor, and be widely used on the products such as information system equipment, household appliance, communication apparatus, personal portable.
With touch panel in recent years communications industry rapid emergence, especially in the flourishing hair of mobile communication industry
Exhibition, touch panel become the preferred product of imaging display apparatus now at one stroke.The highest touch panel of utilization rate is mainly resistance
Formula touch panel and capacitance type touch-control panel, but the considerations of user is for controllability, ease for use and appearance, most meeting
Select capacitance type touch-control panel as its best preferred unit.
In the capacitance type touch-control panel of traditional smart phone, the material of touch control electrode be usually tin indium oxide (referred to as
ITO).The light transmittance of ITO is very high, and electric conductivity is preferable.But with incrementally increasing for touch panel size, it is especially applied to 15
When the very little above panel, the defect of ITO is more and more prominent, and most obvious one defect is exactly that the surface resistance of ITO is excessive, and price is high
It is expensive, it not can guarantee the good electric conductivity of large touch panel and enough sensitivity, can not be suitable for electronic product not yet
The development trend of disconnected low priceization.
In addition, in manufacturing method, ITO originally need vacuum chamber, higher depositing temperature and/or high annealing temperature with
High conductance is obtained, causes the integral manufacturing cost of ITO very expensive.Moreover, ito thin film is very fragile, though encounter compared with
The bending of small physical stress is also more easily damaged very much, therefore the tide in the emerging product market that wearable device gradually emerges
Under, ITO material can not cannot deal with the demand in market as conductive electrode, will gradually be eliminated.
Just because of this, industrial circle is being dedicated to developing the alternative materials of ITO always, and that is gradually developed and applied at present replaces
For material include nano-silver thread (Silver Nano Wires, abbreviation SNW), metal grill (Metal Mesh), carbon nanotube,
Organic Conductive Films and graphene etc..
Wherein SNW is many ITO alternative materials one kind more mature at present.The conduction that nano-silver thread has silver excellent
Property, simultaneously because the dimensional effect of its Nano grade, so that it is with excellent translucency and flexible resistance, therefore can be used as
Preferably material of the substitution ITO as touch control electrode.
A protective layer can be made in the transparent conductive film of the ITO material of conventional touch screen, for protecting ITO layer, when this
When protective layer is applied to nano-silver thread touch panel, usually pass through light between the cover plate on surface or other touch panel elements
Glue bond is learned, meanwhile, in order to overcome the problems, such as nano-silver thread as some existing for conductive material, it will usually add some functions
Layer, such touch-control laminated construction is thicker, and the frivolous direction for being melted into consistent pursuit of current touch panel.
[summary of the invention]
For the thickness problem for overcoming present touch panel, the present invention provides a kind of lower nano-silver thread conductive laminate of thickness
Structure and the touch panel for using the nano-silver thread conductive laminate structure.
The present invention solves the technical solution that above-mentioned technical problem provides: a kind of nano-silver thread conductive laminate structure is provided,
It includes a substrate, and a nano-silver thread conductive electrode layer is set to the substrate upper surface and an adherence protective layer, setting
In nano-silver thread conductive electrode layer upper surface, including transparent sticky material and transparent dielectric material, the nano-silver thread is led
The refractive index of electric electrode layer is n1, and the refractive index of the adherence protective layer is nf, and the refractive index of the substrate is nt, and n1 is equal to
The product of nf and nt opens radical sign, and the refractive index of the nano-silver thread conductive electrode layer is 1.35-1.8, and mist degree is no more than 5%；Institute
Stating transparent sticky material includes photonasty sticker and/or thermosetting property sticker, and photonasty sticker is polyacrylate system
The material of photoresist, thermosetting property sticker is epoxy resin, and thermosetting property sticker heat cross-linking is in photonasty sticker.
Preferably, the transparent dielectric material is nano-scale particle, which is entrained in the transparent adhesion material
In material.
Preferably, transparent sticky material content is 20%~98% in the adherence protective layer.
Preferably, the adherence protective layer is semi-harden or pansclerosis adherence protective layer, the semi-harden protection
The reaction conversion ratio of the sticky material of layer is 35%-80%, and the reaction conversion ratio of the sticky material of the pansclerosis protective layer is
90%-100%.
Preferably, the transparent dielectric material is polyimide, silica, nitrogen Si oxide, epoxy resin, acrylic
Any combination of any one or above-mentioned material of polymer.
Preferably, the nano-silver thread conductive laminate structure further comprises one being set on the adherence protective layer
Release layer.
Preferably, the nano-silver thread conductive laminate structure further comprises an optical match layer, the optical match layer
Any position above substrate, the optical match layer are superimposed by one layer of low-refraction optical film and a high refractive index optical film
It forming, the refractive index of the low-refraction optical film is 1.1~1.6, the refractive index of the high refractive index optical film is 1.8~
2.7, optical match layer with a thickness of 1/4 wavelength odd-multiple.
Preferably, the nano-silver thread conductive electrode layer with a thickness of 10nm-5um.
Preferably, the nano-silver thread conductive electrode layer includes nano-silver thread and matrix, wherein the nano-silver thread is at least
It is partially submerged into matrix, for the wire length of the nano-silver thread between 20 μm -50 μm, line footpath is less than or equal to 50nm, wire length and line footpath
The ratio between be greater than 10.
The present invention solves that above-mentioned technical problem provides another solution is that providing a kind of nano-silver thread touch panel,
It includes a cover board and a nano-silver thread conductive laminate structure, which includes a substrate, and one nanometer
Silver wire conductive electrode layer is set to the substrate upper surface and a sticky protective layer, is set to the nano-silver thread conductive electrode
Layer upper surface, including transparent sticky material and transparent dielectric material, the cover board are led by adherence protective layer with nano-silver thread
Electric layer stack structure is bonding.
Preferably, the nano-silver thread touch panel further comprises one second conductive electrode layer, and described second is conductive
Electrode layer is formed on surface of the cover board towards the adherence protective layer.
Preferably, the electrode material of second conductive electrode layer is nano-silver thread or ITO.
Compared with prior art, nano-silver thread conductive laminate structure of the present invention and use the nano-silver thread conductive laminate structure
Touch panel using SNW substitution ITO be improved as conductive material, electric conductivity and reaction sensitivity, especially in
It is particularly evident to the promotion of sensitivity in large-sized touch panel.And when due to using nano-silver thread as conductive material,
Since nano-silver thread exists, overlap joint is bad, and flatness is poor, and the higher problem of reflecting rate needs to be correspondingly arranged many functional layers,
Need to introduce adhesive layer bonding between touch panel element simultaneously, so that touch panel thickness is thicker, and touch panel
It is lightening to be pursued by industry always, to prevent conductive material exposure from causing a series of problems, protective layer is usually set to protect
Conductive material is combined into one the function of protective layer and adhesive layer, realizes nano-silver thread touch-control by providing adherence protective layer
Panel it is lightening.And adherence protective layer is made of mixed materials, can be protected by arranging in pairs or groups to unlike material with adherence
The refractive index of the upper and lower functional layer of sheath matches, and realizes the reduction to nano-silver thread mist degree.
[Detailed description of the invention]
Fig. 1 is the cross section structure schematic diagram that nano-silver thread conductive electrode layer is distributed on substrate.
Fig. 2 is the floor map that nano-silver thread conductive electrode layer is distributed on substrate.
Fig. 3 is the cutting plane detonation configuration figure of first embodiment of the invention nano-silver thread conductive laminate structure.
Fig. 4 is second embodiment of the invention nano-silver thread conductive laminate construction manufacturing method flow chart.
Fig. 5 is the cutting plane detonation configuration figure of third embodiment of the invention nano-silver thread laminated construction.
Fig. 6 is fourth embodiment of the invention nano-silver thread touch panel cutting plane detonation configuration figure.
Fig. 7 is the distressed structure cutting plane detonation configuration figure of fourth embodiment of the invention nano-silver thread touch panel.
Fig. 8 is fifth embodiment of the invention nano-silver thread touch panel cutting plane detonation configuration figure.
Fig. 9 is the distressed structure cutting plane detonation configuration figure of fifth embodiment of the invention nano-silver thread touch panel.
Figure 10 is sixth embodiment of the invention nano-silver thread touch panel cutting plane detonation configuration figure.
Figure 11 is that seventh embodiment of the invention is quick-fried using the touch-control display module cutting plane of nano-silver thread conductive laminate structure
Fried structure chart.
[specific embodiment]
In order to make the purpose of the present invention, technical solution and advantage are more clearly understood, below in conjunction with attached drawing and embodiment,
The present invention will be described in further detail.It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, and
It is not used in the restriction present invention.
It should be understood that the positions such as upper and lower, left and right determiner is only limitted to the phase in given view in following all embodiments
To position, rather than absolute position.
Silver is silvery white non-ferrous metal under general state, and is opaque material, and electric conductivity is splendid.And when being nano-silver thread,
Nano-silver thread has good light transmittance and splendid electric conductivity, can be good at the conductive electrode for applying to touch panel.
Fig. 1 and Fig. 2 are please referred to, is the schematic diagram that nano-silver thread conductive electrode layer 805 is distributed on substrate 807 comprising
Substrate 807 and the nano-silver thread conductive electrode layer 805 being produced on substrate 807, nano-silver thread conductive electrode layer 805 include matrix
803 and more nano-silver threads 801 being embedded in matrix 803, substrate 807 be generally transparent insulation material.Nano-silver thread 801
Wire length is 10um-300 μm, and preferably 20um-100 μm, best 20um-50 μm of its length, the line footpath of nano-silver thread 801 is less than
500nm, or be less than 200nm, 100nm, preferably less than 50nm, and its length-width ratio (the ratio between wire length and line footpath) and be greater than 10, preferably
Greater than 50, more preferably greater than 100.
Nano-silver thread conductive electrode layer 805 with a thickness of 10nm-5 μm, preferably 20nm-1 μm, it is more excellent be 50nm-
200nm.In some embodiments, the refractive index of nano-silver thread conductive electrode layer 805 is 1.3-2.5, and more excellent is 1.35-1.8.
Matrix 803 refers to that nano-silver thread solution is arranged on substrate 807 by the methods of coating, makes by heating, drying
After obtaining volatile substance volatilization, the non-nano silver wire substance on substrate 807 is stayed in.Nano-silver thread 801 spreads or is embedded,
Conductive network is formed, part nano-silver thread 801 is prominent from matrix 803.Nano-silver thread 801 forms nano silver by matrix 803
Line conductive electrode layer 805, matrix 803 can protect nano-silver thread 801 from the influence of the external environments such as corrosion, wear.
Nano-silver thread solution refers to that nano-silver thread 801 is dispersed in specific solvent and the aaerosol solution of formation, the solvent
It can be or mixtures thereof water, aqueous solution, organic solvent, inorganic solvent, solion, saline solns, supercritical fluid, oil
Deng.Also contain other additives in the solvent, such as dispersing agent, surfactant, crosslinking agent, wetting agent or thickener, but not with
This is limited.
In addition, the optics that can adjust nano-silver thread conductive electrode layer 805 by selecting 803 material of matrix appropriate is special
Property, especially solve haze issues.For example, matrix 803 can be adjusted to to have desired refractive index, component and certain
Thickness, reflection loss, glare effects, mist degree can be efficiently reduced.
The light transmittance or clarity of nano-silver thread conductive electrode layer 805 can limiting by following parameter quantitative: light transmittance and
Mist degree.Light transmittance refers to the percentage of the incident light transmitted by medium, and the light transmittance of nano-silver thread conductive electrode layer 805 is at least
It is 88%, it might even be possible to up to 91%-95%.Mist degree is the index of light diffusion, mist degree refer to separated in incident light and
The number percent of the light scattered during transmission.Light transmittance is largely the property of light transmission medium, different
, mist degree is often related with product, and typically by the unevenness of imbedded particle or component in surface roughness and medium
Caused by even property.The mist degree of nano-silver thread conductive electrode layer 805 does not exceed 5% in the embodiments of the present invention, even
It can achieve and be no more than 3% -1.5%.
Referring to Fig. 3, first embodiment of the invention nano-silver thread conductive laminate structure 10 includes a substrate 807, nano silver
Line conductive electrode layer 805 and adherence protective layer 106, nano-silver thread conductive electrode layer 805 are formed on substrate 807, adhesion
Property protective layer 106 is covered on nano-silver thread conductive electrode layer 805.
The material of substrate 807 is glass, polyethylene terephthalate (PET), PI (polyimides), PC (poly- carbonic acid
Ester), polymethyl methacrylate (PMMA), acryl, polyether sulfone (PES), acrylic nitrile-butadiene-styrene (ABS), gather
Amide (PA), polybenzimidazoles polybutene (PB), polybutylene terephthalate (PBT) (PBT), polyester (PE), polyether-ether-ketone
(PEEK), polyetherimide (PEI), polyetherimide, polyethylene (PE), polystyrene (PS), polytetrafluoroethylene (PTFE) (PTFE) gather
The compound of any one or its any the two of urethane (PU) or polyvinyl chloride (PVC).
The nano-silver thread conductive electrode layer 805 with a thickness of 10nm-5 μm, sheet resistance 0-100ohm/sq, the nanometer
Silver wire conductive electrode layer 805 includes matrix 803 and nano-silver thread 801, and the matrix 803 is organic solution and/or inorganic solution
Substance after evaporation, further comprise surfactant, dispersing agent, stabilizer or adhesive any one or it is above-mentioned any
Combination.
The adherence protective layer 106 prevents 801 surface of nano-silver thread to be oxidized and make for protecting nano-silver thread 801
Electric conductivity reduces.
The material of the adherence protective layer 106 includes transparent sticky material and transparent dielectric material.Wherein, this is viscous
Material be photonasty sticker and/or thermosetting property sticker.
The photonasty sticker can be the photoresist suitable for lithography process, for example, absorbable ultraviolet wavelength
Polyacrylate system photoresist or other light solidity photoresist.
The material of the thermosetting property sticker then includes epoxy resin or other are thermally cross-linkable and in photonasty sticker phase
The material of appearance.
The adherence protective layer 106 is hardened adherence protective layer 106.The hardening includes semi-harden and complete
Hardening, the semi-harden reaction conversion ratio rate for referring to sticky material in adherence protective layer 106 of sticky material not up to 80%~
100%, preferable reaction conversion ratio is 35%~80%, i.e., the 35%~80% of compound crosslinkable function in sticky material
Base generates cross-linking reaction, so that sticky material generates viscosity.Adherence protective layer 106 is semi-harden to refer to adherence protective layer 106
The 35%~80% of contained crosslinkable functional group generates cross-linking reaction, so that adherence protective layer 106 generates viscosity.And it is complete
Hardening refers to that 80%~100% of crosslinkable functional group contained by sticky material or adherence protective layer 106 generates crosslinking instead
It answers, preferably, reaction conversion ratio reaches 90%~100%.
The transparent dielectric material is polyimide, silica, nitrogen Si oxide, epoxy resin, acryl polymer
Any one or combinations thereof.The dielectric material is nano-scale particle, which is entrained in cohesive material, preferably
Ground, the nano-scale particle are uniformly dispersed in adhesive material.Dielectric material uses nano-scale particle, so that adherence is protected
Layer 106 has preferable optical appearance.
The dielectric material be selected from nano-silver thread conductive electrode layer 805 or with cover board (not shown) or with substrate 807
More compatible material, can be promoted to a certain extent adherence protective layer 106 and cover board or nano-silver thread conductive electrode layer 805 or
The bond strength of substrate 807.
Transparent sticky material content is 20%~98% in the adherence protective layer 106, and best transparent sticky material contains
Amount is 75%~95%.The dielectric material of doping transparent appropriate can be improved adherence protective layer 106 and other touch panels
The compatibility of element, and the protective layer of single dielectric material compared with the existing technology, doping transparent sticky material appropriate can
Improve the adhesion strength of adherence protective layer 106 and other other panel components.
Nano-silver thread conductive laminate structure 10 of the present invention optionally can further be arranged one and be located at the adherence protective layer 106
On release layer (not shown), the nano-silver thread conductive laminate structure 10 equipped with the release layer will be more convenient for packaging transport and
Maintain the adhesion strength of the adherence protective layer 106, as long as and remove the release layer, next stage technique can be carried out.
Since 106 sticky material of adherence protective layer includes photonasty sticker or thermosetting property sticker.Visually need
Strategic point was heat-treated or is exposed to the adherence protective layer 106 in any stage, kept the thermosetting property sticker or photonasty viscous
Agent is semi-harden or even pansclerosis, to keep entire adherence protective layer 106 semi-harden or even pansclerosis.But the degree of hardening is then
Depending on material itself or optionally adjust.Since 106 sticky material of adherence protective layer includes photonasty sticker
With thermosetting property sticker.The protective layer can be handled before, during or after the exposure of photonasty sticker, protect the adherence
Layer 106 or in which thermosetting property sticker or photonasty sticker is semi-harden or even pansclerosis.
When compared to the general nano-silver thread conductive laminate structure equipped with protective layer in conjunction with other touch panel elements,
Need in addition to be arranged layer of transparent optical cement, the adherence protective layer 106 has viscosity, it is not necessary that transparent optical is still further arranged
Glue is more advantageous to the lightening of touch panel.
Compared to the general protective layer of single material, the adherence protective layer 106 being made of mixed materials can be by not
With the collocation of index materials, the touch panel of different demands is adapted to, specifically, by adjusting adherence protective layer 106
Refractive index makes its refractive index match with disposed thereon, flowering structure refractive index, and the light transmittance of touch panel can be improved, and improves
The problem of touch panel bad order.For example, nano-silver thread conductive electrode layer 805 is refracted as rate n1, adherence protective layer 106
Refractive index be nf, the refractive index of substrate 807 is nt, and n1 is greater than nf and is less than nt, and the product for being preferably approximately equal to nf and nt opens root
Number.
In another distressed structure, the substrate 807 is the interface that user touches touch panel, and material is glass
Glass, strengthened glass or sapphire glass, the periphery of the substrate 807 are laid with decorative layer (not shown), and the decorative layer is used for
The metal conductive leads (not shown) on 805 periphery of nano-silver thread conductive electrode layer is covered, certainly, conductive lead wire also can be used transparent
Conductive lead wire, at this time without substrate 807 periphery be arranged decorative layer.The nano-silver thread conductive laminate structure of the distressed structure
It is subsequent when being bonded with display module (not shown), only adhesive layer need to be used as using adherence protective layer 106, without still further
Optical adhesive in traditional technology is set.
Referring to Fig. 4, second embodiment of the invention provides the manufacturing method of nano-silver thread conductive laminate structure 10, the party
Method the following steps are included:
S11: a substrate 807 is provided；
S12: nano-silver thread conductive electrode layer 805 is formed；
S13: adherence protective layer 106 is formed；
In step s 11, substrate 807 is made of transparent insulation material, provides branch for nano-silver thread conductive laminate structure 10
Support.
In step s 12, nano-silver thread solution has been configured, nano-silver thread solution coating has been existed using the method for fluid coating
On substrate 807, by taking slit type is coated with as an example, by adjusting the width of crack, nozzle at a distance from roller, transmission speed and pump
Charging is to obtain wet nano-silver thread conductive electrode layer 805.
The method of the fluid coating is selected from following any or their any combination: ink-jet is broadcasted sowing, intaglio printing,
Letterpress, flexo, nano impression, silk-screen printing, Meyer bar or blade coating, slit type are coated with (slotdie
Coating), rotary coating, needle are drawn (stylus plotting), item seam coating, flow coat.
In step s 13, after evenly mixing by dielectric material and sticky material, it is coated on nano-silver thread conductive electrode layer
805 upper surface forms adherence protective layer 106 after hardened, adherence protective layer 106 is for nano-silver thread 801 not by oxygen
Change.
Referring to Fig. 5, nanometer described in third embodiment of the invention nano-silver thread conductive laminate structure 30 and first embodiment
Silver wire conductive laminate structure 10 is essentially identical, the difference is that, one layer of optics is added in 306 upper surface of adherence protective layer
With layer 305, the optical match layer 305 of stating is formed by stacking by one layer of low-refraction optical film and one layer of high refractive index optical film,
For reducing the mist degree of nano-silver thread conductive laminate structure 30, nano-silver thread conduction is set gradually below adherence protective layer 306
Electrode layer 805 and substrate 807.
The low-refraction is refractive index less than 1.6, preferably 1.1~1.6, preferred refractive index is 1.1,1.25,
1.32,1.38,1.46,1.50,1.52.The material of low-refraction can be organic matter and/or inorganic matter.Such as Si oxide,
Chlorofluoride, magnesium fluoride, silica, lithium fluoride, sodium fluoride, magnesia, silicate, polyurethane, PMMA, PVA, PVP are organic
The mixture of silicon, fluoropolymer, acrylic resin or acrylic resin and silicon stone nano particle.
The high refractive index is that refractive index is greater than 1.8, preferably 1.8~2.7.Preferred refractive index is 1.8,1.85,
2.0,2.2,2.4,2.7.The material of high refractive index can be organic matter and/or inorganic matter.Such as: tantalum pentoxide, titanium oxide,
Niobium oxide, lead oxides, Zirconium oxide, zinc sulfide, polyimides, ZrO2, Pb5O11, Ta2O5, niobium pentaoxide, dioxy
Change titanium, silica gel, acrylic resin or titania nanoparticles.
The optical match layer 305 with a thickness of 1/4 wavelength odd-multiple.
The generation type of the optical match layer 305 is physical deposition, and chemical deposition, vacuum coating is printed, sprayed, soft
Print, nano impression, silk-screen printing, blade coating, rotary coating, rodlike coating, roller coating, bar coating, dip coated it
It is any.
When conductive material due to nano-silver thread 801 as nano-silver thread conductive electrode layer 805, haze issues need gram
Clothes, after increasing by an optical match layer 305 in the present embodiment, the mist degree of the nano-silver thread conductive electrode layer 805 can be reduced
To 5% or so, preferably less than 3%, 2%, 1.0%.
In other distressed structure, the position of optical match layer 305 is variable, need to only be located at 807 top of substrate.
In other distressed structure, optical match layer 305 is one layer of low-refraction optical film layer.It can also be that multilayer is low
Refractive optical film and high refractive index optical film alternate superposition by low-refraction optical film, high refractive index optical film and constitute,
Its with a thickness of 1/4 wavelength odd-multiple.
Referring to Fig. 6, fourth embodiment of the invention nano-silver thread touch panel 40 includes a cover board 409, a nano-silver thread
Conductive laminate structure 403, the nano-silver thread conductive laminate structure 403 include a substrate 807, a nano-silver thread conductive electrode layer
805 and an adherence protective layer 4036.The cover board 409 passes through adherence protective layer 4036 and nano-silver thread conductive laminate structure
403 is bonding.
The material of the cover board 409 is selected from glass, strengthened glass, sapphire glass, polyether-ether-ketone, polyimides, gathers
Any one or its of ethylene glycol terephthalate, polycarbonate, polyethylene glycol succinate, polymethyl methacrylate
The compound of the two of anticipating.
Referring to Fig. 7, nano-silver thread conductive laminate structure 403 is described in 3rd embodiment in another distressed structure
Nano-silver thread conductive laminate structure comprising substrate 807, nano-silver thread conductive electrode layer 805, adherence protective layer 4036, and
Optical match layer 4035.
Referring to Fig. 8, fifth embodiment of the invention nano-silver thread touch panel 50 includes cover board 509, the second conductive electrode
Layer 506 and a nano-silver thread conductive laminate structure 503, the nano-silver thread conductive laminate structure 503 include a substrate 807,
One nano-silver thread conductive electrode layer 805 and an adherence protective layer 5036.Second conductive electrode layer 506 takes shape in cover board
509 pass through adherence protective layer 5036 and nano-silver thread conductive laminate knot different from operating surface side, second conductive electrode layer 506
Structure 503 is bonding, and conductive electrode material is nano-silver thread.
In another distressed structure, the material of the second conductive electrode layer 506 is ITO, nano-silver thread conductive electrode layer 805
Material be nano-silver thread.
Referring to Fig. 9, nano-silver thread conductive laminate structure 503 is described in 3rd embodiment in another distressed structure
Nano-silver thread conductive laminate structure comprising substrate 807, nano-silver thread conductive electrode layer 805, adherence protective layer 5036, and
Optical match layer 5035.
Referring to Fig. 10, sixth embodiment of the invention nano-silver thread touch panel 60 includes that a cover board 609 and first receive
Rice silver wire conductive laminate structure 603, the second nano-silver thread conductive laminate structure 605, the first nano-silver thread conductive laminate knot
Structure 603, the second nano-silver thread conductive laminate structure 605 are nano-silver thread conductive laminate structure described in first embodiment, described
First nano-silver thread conductive laminate structure 603 includes first base material 8071, the first nano-silver thread conductive electrode layer 8051 and first
Adherence protective layer 6036, the second nano-silver thread conductive laminate structure 605 include the second substrate 8073, the second nano-silver thread
Conductive electrode layer 8053 and the second adherence protective layer 6056.First nano-silver thread conductive laminate structure 603, the second nano-silver thread
Conductive laminate structure 605 is bonded by the first adherence protective layer 6036, and the cover board 609 passes through the second adherence protective layer
6056 is bonding with the second nano-silver thread conductive laminate structure 605.
In other distressed structure, the first nano-silver thread conductive laminate structure 603, the second nano-silver thread conductive laminate knot
Structure 605 can also be described in 3rd embodiment with the nano-silver thread multilayer laminated structure of optical match layer or 603,605 wherein
One is the nano-silver thread multilayer laminated structure with optical match layer described in 3rd embodiment.
Figure 11 is please referred to, nano-silver thread conductive laminate structure 10 is applied to touch control display apparatus by seventh embodiment of the invention
100.The nano-silver thread conductive laminate structure 10 is fitted in display module entirely, for example, receiving when in LCD display module
The lower section of rice silver wire conductive laminate structure 10 is disposed with upper polaroid 1001, upper substrate 1003, liquid crystal layer 1005, lower substrate
1007, down polaroid 1009.In addition to may be also used in plasma display module, coloured plate with other than in LCD display module
In display module, on opto-electronic device and similar products.
Compared with prior art, nano-silver thread conductive laminate structure of the present invention and use the nano-silver thread conductive laminate structure
Touch panel using SNW substitution ITO be improved as conductive material, electric conductivity and reaction sensitivity, especially in
It is particularly evident to the promotion of sensitivity in large-sized touch panel.And when due to using nano-silver thread as conductive material,
Since nano-silver thread exists, overlap joint is bad, and flatness is poor, and the higher problem of reflecting rate needs to be correspondingly arranged many functional layers,
Need to introduce adhesive layer bonding between touch panel element simultaneously, so that touch panel thickness is thicker, and touch panel
It is lightening to be pursued by industry always, to prevent conductive material exposure from causing a series of problems, protective layer is usually set to protect
Conductive material is combined into one the function of protective layer and adhesive layer, realizes nano-silver thread touch-control by providing adherence protective layer
Panel it is lightening.And adherence protective layer is made of mixed materials, can be protected by arranging in pairs or groups to unlike material with adherence
The refractive index of the upper and lower functional layer of sheath matches, and realizes the reduction to nano-silver thread mist degree.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in original of the invention
Made any modification within then, equivalent replacement and improvement etc. should all be comprising within protection scope of the present invention.
Claims (12)
1. a kind of nano-silver thread conductive laminate structure, it is characterised in that: including,
One substrate,
One nano-silver thread conductive electrode layer is set to the substrate upper surface, and
One adherence protective layer, is set to nano-silver thread conductive electrode layer upper surface, and the adherence protective layer includes saturating
Bright sticky material and transparent dielectric material, the refractive index of the nano-silver thread conductive electrode layer are n1, the adherence protective layer
Refractive index be nf, the refractive index of the substrate is nt, and product of the n1 equal to nf and nt opens radical sign, and the nano-silver thread is conductive
The refractive index of electrode layer is 1.35-1.8, and mist degree is no more than 5%；
The transparent sticky material includes photonasty sticker and/or thermosetting property sticker, and photonasty sticker is polyacrylic acid
The material of the photoresist of ester system, thermosetting property sticker is epoxy resin, and thermosetting property sticker heat cross-linking is in photonasty sticker.
2. nano-silver thread conductive laminate structure as described in claim 1, it is characterised in that: the transparent dielectric material is nanometer
Grade particles, the nano-scale particle are entrained in the transparent sticky material.
3. nano-silver thread conductive laminate structure as described in claim 1, it is characterised in that: transparent viscous in the adherence protective layer
Material content be 20%~98%.
4. nano-silver thread conductive laminate structure as described in claim 1, it is characterised in that: the adherence protective layer is semihard
Change or the adherence protective layer of pansclerosis, the reaction conversion ratio of the sticky material of the semi-hardening protective layer are 35%-80%, institute
The reaction conversion ratio for stating the sticky material of pansclerosis protective layer is 90%-100%.
5. nano-silver thread conductive laminate structure as described in claim 1, it is characterised in that: the transparent dielectric material is poly- Asia
Amide, silica, nitrogen Si oxide, epoxy resin, any combination of any one or above-mentioned material of acryl polymer.
6. nano-silver thread conductive laminate structure as described in claim 1, it is characterised in that: further comprise one be set to it is described
Release layer on adherence protective layer.
7. nano-silver thread conductive laminate structure as described in claim 1, it is characterised in that: further comprise an optical match
Layer, the optical match layer are located at any position above substrate, and the optical match layer is by one layer of low-refraction optical film and one
High refractive index optical film is formed by stacking, and the refractive index of the low-refraction optical film is 1.1~1.6, the high refractive index optics
The refractive index of film be 1.8~2.7, optical match layer with a thickness of 1/4 wavelength odd-multiple.
8. nano-silver thread conductive laminate structure as described in claim 1, it is characterised in that: the nano-silver thread conductive electrode layer
With a thickness of 10nm-5um.
9. nano-silver thread conductive laminate structure as claimed in claim 8, it is characterised in that: the nano-silver thread conductive electrode layer packet
Nano-silver thread and matrix are included, wherein the wire length of the nano-silver thread is between 20 μ in at least partially embedded matrix of the nano-silver thread
M-50 μm, line footpath is less than or equal to 50nm, and the ratio between wire length and line footpath are greater than 10.
10. a kind of nano-silver thread touch panel, it is characterised in that: including,
One cover board, and
Such as the described in any item nano-silver thread conductive laminate structures of claim 1-9,
The cover board is bonding by adherence protective layer and nano-silver thread conductive laminate structure.
11. nano-silver thread touch panel as claimed in claim 10, it is characterised in that: it further include one second conductive electrode layer,
Second conductive electrode layer is formed on surface of the cover board towards the adherence protective layer.
12. nano-silver thread touch panel as claimed in claim 11, which is characterized in that the electricity of second conductive electrode layer
Pole material is nano-silver thread or ITO.
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| CN106128563A (en) * | 2016-08-15 | 2016-11-16 | 东莞市纳利光学材料有限公司 | A kind of conductive and heat-conductive film and preparation method thereof |
| CN108630339B (en) * | 2017-03-21 | 2020-06-16 | 宁波惠之星新材料科技有限公司 | Ultra-soft low-resistance transparent conductive film and preparation method thereof |
| CN108447617B (en) * | 2018-02-02 | 2020-06-30 | 湖南兴威新材料有限公司 | Method for protecting nano silver wire transparent conductive film |
| CN110083279A (en) * | 2019-05-07 | 2019-08-02 | 业成科技（成都）有限公司 | Transparent conductive material, touch-control structure and touch device |
| CN111171630A (en) * | 2020-01-19 | 2020-05-19 | 惠州达祺光电科技有限公司 | Preparation method of ink-jet printing patterned transparent conductive film |
| CN114385018A (en) * | 2020-10-20 | 2022-04-22 | 宸美（厦门）光电有限公司 | Contact structure, electronic device, and method of manufacturing contact structure |
| CN112731704A (en) * | 2020-12-31 | 2021-04-30 | 苏州思尔维纳米科技有限公司 | High-transmittance low-sheet-resistance liquid crystal display functional film and preparation method thereof |
| CN114698254A (en) * | 2020-12-31 | 2022-07-01 | 天材创新材料科技(厦门)有限公司 | Stacking structure and touch sensor |
| CN113821125A (en) * | 2021-11-22 | 2021-12-21 | 广东省科学院半导体研究所 | Touch substrate, preparation method thereof, touch module and display device |
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| KR101822042B1 (en) * | 2011-01-21 | 2018-01-25 | 프라운호퍼-게젤샤프트 츄어 푀르더룽 데어 안게반텐 포르슝에.파우. | Polymerizable compositions, cured products obtained therewith, and use of these materials |
| US9655252B2 (en) * | 2012-06-01 | 2017-05-16 | Suzhou Nuofei Nano Science And Technology Co., Ltd. | Low haze transparent conductive electrodes and method of making the same |
| KR20140070106A (en) * | 2012-11-30 | 2014-06-10 | 삼성디스플레이 주식회사 | Flexible Touch Screen Panel and Fabricating Method Thereof |
| TWI503721B (en) * | 2013-05-09 | 2015-10-11 | Henghao Technology Co Ltd | Touch electrode device |
| CN203276226U (en) * | 2013-05-19 | 2013-11-06 | 祥达光学（厦门）有限公司 | Touch control sensing device |
| CN203930764U (en) * | 2014-06-12 | 2014-11-05 | 宸鸿科技(厦门)有限公司 | Nano-silver thread conductive laminate structure and contact panel |
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