CN105426025A - Touch panel - Google Patents
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- CN105426025A CN105426025A CN201410474228.4A CN201410474228A CN105426025A CN 105426025 A CN105426025 A CN 105426025A CN 201410474228 A CN201410474228 A CN 201410474228A CN 105426025 A CN105426025 A CN 105426025A
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Abstract
The invention relates to a touch panel. The touch panel comprises a touch sensing layer and a cover plate, wherein the touch sensing layer comprises a silver nanowire electrode and a routing region corresponding to the silver nanowire electrode; a routing material of the routing region is a silver nanowire; the cover plate is positioned on the touch sensing layer and comprises a visual region and a coverage region; the coverage region is formed by coating the periphery of at least one edge of the visual region with a color coating; and the thickness of the color coating is less than 10 microns. The color coating of the touch panel can well cover the routing region, so that the touch panel has the characteristic of a colorful appearance.
Description
[technical field]
The present invention relates to technical field of touch control, particularly a kind of contact panel.
[background technology]
With contact panel in recent years in the rapid emergence of communications industry, flourish particularly in mobile communication industry, contact panel becomes the first-selected product of imaging display apparatus now at one stroke.
Existing touch panel structure provided in, the material of general electrode layer is tin indium oxide (ITO), the material of cabling is molybdenum aluminium molybdenum (MoAlMo), when making the pattern of electrode layer and routing layer, need could be formed through repeatedly manufacture craft, so yield is generally lower, and the indium in the indium tin oxide material of transparency conducting layer use is rare material, the content of whole world indium is about 1.6 ten thousand tons, thus causes the price of tin indium oxide very expensive; Meanwhile, because the bending of tin indium oxide self is poor, the color category of this decorative layer that can cause optionally insulating is less, and can only be dark.
And people to electronic product aesthetic property demand in continuous growth, someone produces a kind of escutcheon is colored capacitance touching control panel (hereinafter referred to as " contact panel "), the shielded area of contact panel adopts colour-wash material to make, it has diffuse reflection effect to light, has texture attractive in appearance.But, when decorative layer makes light color such as light color, because non-black frame is when blocking cabling, shaded effect is bad, when printing non-black frame, in order to reach desirable occlusion effect, need to repeat print, escutcheon to be made the very thick seal ring thickness that causes increases, and make transparency conducting layer occur climbing problem.
[summary of the invention]
For overcoming prior art Problems existing, the invention provides a kind of capacitance type touch-control panel with thinner escutcheon, nothing climbing problem.
The scheme that the present invention solves the problems of the technologies described above is to provide a kind of contact panel, comprising: a touch-control sensing layer, and this touch-control sensing floor comprises the cabling district of nano-silver thread electrode and its correspondence, and the cabling material in cabling district is nano-silver thread; One cover plate, is positioned at above touch-control sensing layer, comprises visible area and shielded area, and described shielded area is by least peripheral coating chromatic coating formation in visible area, and described coloured coating thickness is less than 10 μm.
Preferably, described coloured coating comprises color pigment, base-material, filler, solvent, auxiliary agent; Wherein color pigment comprises metal or metal oxide.
Preferably, the trace width in described cabling district is 60 μm-120 μm, and spacing is 10 μm-40 μm.
Preferably, the trace width in described cabling district is 80 μm-100 μm, and spacing is 20 μm-30 μm.
Preferably, the nano-silver thread density in described cabling district is greater than the nano-silver thread density in nano-silver thread electrode.
Preferably, described coloured coating is positioned at the upper surface of cover plate, and described touch-control sensing layer is arranged at the lower surface of described cover plate.
Preferably, the visible area of described coloured coating and cover plate arranges layer protective layer.
Preferably, described coloured coating is positioned at the lower surface of cover plate, and described cabling district is arranged at the side that coloured coating differs from cover plate.
Preferably, described coloured coating is positioned at the lower surface of cover plate, and its side differing from cover plate is provided with insulation course, is cabling district under insulation course.
Preferably, comprise a flexible base, board and a bonding coat further, described touch-control sensing formable layer is in flexible base, board upper surface or lower surface, and described coloured coating is positioned at upper surface or the lower surface of described cover plate, is bonded between cover plate and touch-control sensing layer by described bonding coat.
Preferably, comprise the second touch-control sensing layer further, described second touch-control sensing floor comprises the second nano-silver thread electrode and the second cabling district.
Preferably, described second touch-control sensing layer is positioned at the lower surface of described cover plate, and described coloured coating is for covering the cabling district of the second touch-control sensing floor.
Preferably, comprise further:
Second flexible base, board;
Described second touch-control sensing layer, is placed in any one side of described second flexible base, board;
Second bonding coat, is placed between cover plate and the second touch-control sensing layer;
Described coloured coating is positioned at described cover plate upper surface or lower surface, for covering the cabling district of touch-control sensing floor.
Compared with prior art, contact panel of the present invention adopts nano-silver thread as cabling material, because nano-silver thread light transmission is better, be easier to cover cabling, therefore, under the prerequisite ensureing screening effect, coloured coating can adopt colour, compared to prior art, shielding layer is made black, improve significantly to the outward appearance of product, color becomes bright-coloured abundant.Because nano-silver thread easily covers as during cabling, therefore, the lower thickness of coloured coating, one printing process is only needed to complete, its thickness can be reduced within 10 μm, thus make solution climbing problem become possibility, contact panel cabling district of the present invention with between nano-silver thread cells can together with the disposable formation of technique, also conventional I TO technique can be adopted to be formed respectively by twice technique, all can be formed in electrical contact between the nano-silver thread electrode of final formation and cabling district, thus also just there is not the climbing problem of electrode.And, adopt nano-silver thread as cabling material, because the electric conductivity of silver is better, good conductance and less impedance can be reached.In addition, coloured coating only adopts one technique to complete, without the need to repeating processing procedure, not only make the thickness of coloured coating greatly reduce (by be greater than 30 μm be reduced to be less than 10 μm), screening effect is good, and save manufacturing cost, accelerate manufacturing speed, reduce the thickness of contact panel.
[accompanying drawing explanation]
Fig. 1 is the cross section structure schematic diagram of nano-silver thread distribution of electrodes on base material.
Fig. 2 is the planar structure schematic diagram of nano-silver thread distribution of electrodes on base material.
Fig. 3 is the cutting structural representation of first embodiment of the invention contact panel.
Fig. 4 is the cutting structural representation of second embodiment of the invention contact panel.
Fig. 5 is the cutting structural representation of third embodiment of the invention contact panel.
Fig. 6 is the cutting structural representation of fourth embodiment of the invention contact panel.
Fig. 7 is the structural representation of the first touch-control sensing layer of fourth embodiment of the invention contact panel.
Fig. 8 is the structural representation of the second touch-control sensing layer of fourth embodiment of the invention contact panel.
Fig. 9 is the cutting structural representation of fifth embodiment of the invention contact panel.
Figure 10 is the distressed structure cutting structural representation of fifth embodiment of the invention contact panel.
Figure 11 is the cutting structural representation of sixth embodiment of the invention contact panel.
Figure 12 is the first method for making process flow diagram of seventh embodiment of the invention contact panel.
Figure 13 is the second method for making process flow diagram of eighth embodiment of the invention contact panel.
[embodiment]
For realizing making object of the present invention, technical scheme and advantage are clearly understood, below in conjunction with accompanying drawing and embodiment, are further elaborated to the present invention.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Should be appreciated that, in all embodiments, the position determiners such as upper and lower, left and right are only limitted to the relative position in given view, but not absolute position.
Silver is when nanoscale, and nano-silver thread has good transmittance and splendid electric conductivity, can be good at the conductive electrode applying to contact panel.
Referring to Fig. 1 and Fig. 2, is the schematic diagram that nano-silver thread electrode 1005 is distributed on base material 1007, the many nano-silver threads 1001 that nano-silver thread electrode 1005 comprises matrix 1003 and is embedded in matrix 1003.The line length of nano-silver thread 1001 is 10 μm-300 μm, be preferably 20 μm-100 μm, its length optimum is 20 μm-50 μm, wire diameter is less than 500nm, or is less than 200nm, 100nm, preferably be less than 50nm, and its length breadth ratio ratio of wire diameter (line length with) is greater than 10, is preferably greater than 50, more preferably greater than 100.Base material 1007 is generally transparent insulation material.
Nano-silver thread 1001 scatters or embeds in matrix 1003, forms conductive network.Nano-silver thread 1001 relies on matrix 1003 to form nano-silver thread electrode 1005, and matrix 1003 can protect nano-silver thread 1001 not to be subject to the impact of the external environments such as burn into wearing and tearing.
Matrix 1003 refers to that nano-silver thread solution is being arranged on base material 1007 through methods such as coatings, after heating, drying makes volatile material volatilize, stays the non-nano silver line material on base material 1007.Nano-silver thread solution refers to, nano-silver thread 1001 is dispersed in the aaerosol solution formed in specific solvent, and this solvent can be water, aqueous solution, solion, saline solns, supercritical fluid, oil or its potpourri etc.Also can other adjuvant be contained, as spreading agent, surfactant, crosslinking chemical, stabilizing agent, wetting agent or thickening agent, but not as limit in this solvent.
The thickness of nano-silver thread electrode 1005 is about 10nm-5 μm, and be preferably 20nm-1 μm, more excellent is 10nm-200nm.In certain embodiments, the refractive index of nano-silver thread electrode 1005 is 1.3-2.5, and more excellent is 1.35-1.8.
Refer to Fig. 3, first embodiment of the invention touch panel 10 comprises cover plate 108, protective seam 105, coloured coating 106 and a touch-control sensing layer 103.Cover plate 108 comprises and is positioned at middle visible area 1081 and the shielded area 1083 of edge, described shielded area 1083 is by visible area 1081, the described coloured coating 106 of periphery coating at least is on one side formed, touch-control sensing floor 103 comprises nano-silver thread electrode 1031 and cabling district 102, described cabling district 102 is made up of a plurality of cablings, cabling material is nano-silver thread 1001, the wherein visible area 1081 of the corresponding cover plate 108 of nano-silver thread electrode 1031, the shielded area 1083 of the corresponding cover plate 108 in cabling district 102.Described coloured coating 106 takes shape in shielded area 1083 upper surface at cover plate 108 edge; and formation visible area 1081 and shielded area 1083 is distinguished on cover plate 108; protective seam 105 takes shape in above cover plate 108 and coloured coating 106, and coloured coating 106 is embedded in protective seam 105.Coloured coating 106 is peripheral at least on one side along visible area 1081 to be arranged, the present embodiment adopts the structure of comparatively traditional equal coating chromatic coating 106 of shielded area 1083 upper surface in cover plate 108 surrounding, touch-control sensing layer 103 is arranged at below cover plate 108, its periphery is cabling district 102, namely cabling district 102 relies on cover plate 108, and below the shielded area 1083 being arranged at cover plate 108.The width of described coloured coating 106 is corresponding with the width in cabling district 102, has the function of covering cabling district 102.
Described shielded area 1083 is formed at the coloured coating 106 of contact panel 10 visible area 1081 periphery by the coatings that contact panel 10 is conventional.This coloured coating 106 comprises base-material, pigment, filler, solvent and auxiliary agent, and wherein base-material can be resin, and it can be selected from epoxy resin, urethane resin, alkyd/vibrin, acryl resin, amino resins any one or its combination.Pigment can be selected from organic pigment or inorganic pigment, and organic pigment is toluidine red, peacock green, everbright fast yellow etc. such as; Inorganic pigment can be metal or metal oxide pigment, such as iron oxide red pigment, iron oxide yellow, strontium chromate, chrome green, fresh green or copper powder etc. but not as limit.Described solvent can be selected from water, acetone, ethanol etc.Described auxiliary agent comprises wetting agent, dryer, defoamer and thickening agent etc.
The coating process of described coloured coating 106 comprises the methods such as serigraphy, photogravure, offset printing, hectographic printing, ink jet printing, intaglio printing, spraying and sputter but not as limit.
Described cabling district 102 is made up of a plurality of cablings, cabling material is nano-silver thread 1001, concrete micromechanism is similar to nano-silver thread electrode 1031 micromechanism, the width of cabling is 60 μm-120 μm, be preferably 80 μm-100 μm, be more preferably 80 μm, the spacing between adjacent traces is 10 μm-40 μm, be preferably 20 μm-30 μm, be more preferably 30 μm.Concrete width and spacing are depending on the size of contact panel 10, and the size of usual contact panel 10 is larger, and nano-silver thread 1001 width of needs is wider, spacing is larger.
Cabling district 102 and nano-silver thread electrode 1031 are positioned at same touch control electrode layer 103, can be formed, also by conventional I TO contact panel technique, can form cabling district 102 and nano-silver thread electrode 1031 respectively by twice processing procedure by one disposable patterning of processing procedure.In the present embodiment, cabling district 102 is formed by with the disposable patterning of processing procedure with nano-silver thread electrode 1031, thus formed cabling district 102 is identical with the thickness of nano-silver thread electrode 1031, there is not difference in height between cabling district 102 and nano-silver thread electrode 1031, therefore also would not produce the climbing problem of nano-silver thread electrode 1031.
In the present embodiment, described coloured coating 106 aligns with cover plate 108 surrounding, the width in its width and cabling district 102 adapts, be mainly used in decoration function, become attractive in appearance to make product and provide good covering to cabling, its required color realizes by selecting the pigment of different colours, now coloured coating 106 can adopt the mode of printing to be coated with, and due to cabling employing nano-silver thread 1001, its light transmission is better, present almost transparent, coloured coating 106 just can be blocked easily, therefore coloured coating 106 is without the need to repeatedly printing, one printing process is only needed to complete, thus thinner thickness, its thickness is less than 10 μm.
If the employing inorganic pigment of coloured coating 106, and inorganic pigment comprises metal or metal oxide, then can adopt spatter cross or the method for chemogenic deposit to apply coloured coating 106.
In a kind of distressed structure, with reference to contact panel 10 shown in Fig. 3, cover plate 108 can be 1/4 wavelength retarder plate, so contributes to alleviating the haze issues caused because of nano-silver thread 1001 light scattering in nano-silver thread electrode 103.
Compared with prior art, the present embodiment contact panel 10 adopts nano-silver thread 1001 as cabling material, because nano-silver thread 1001 light transmission is better, be easier to cover cabling, therefore, under the prerequisite ensureing screening effect, coloured coating 106 can adopt colour, compared to prior art, shielding layer is made black, improve significantly to the outward appearance of product, color becomes bright-coloured abundant.Because nano-silver thread 1001 easily covers as during cabling, therefore, the lower thickness of coloured coating 106, one printing process is only needed to complete, its thickness can be reduced within 10 μm, thus making solution climbing problem become possibility, thickness is identical therebetween for the present embodiment contact panel 10 cabling district 102 and nano-silver thread electrode 1031, thus also just there is not the climbing problem of electrode.And, adopt nano-silver thread 1001 as cabling material, because the electric conductivity of silver is better, good conductance and less impedance can be reached.In addition, coloured coating 106 adopts one typography to complete, without the need to repeating print, not only make the thickness of color layer 106 greatly reduce (by be greater than 30 μm be reduced to be less than 10 μm), screening effect is good, and save manufacturing cost, accelerate manufacturing speed, reduce the thickness of contact panel 10.
Refer to Fig. 4, second embodiment of the invention contact panel 20 comprises cover plate 208, it comprises visible area 2081 and shielded area 2083, one coloured coating 206 and a touch-control sensing layer 203, described shielded area 2083 by visible area 2081 at least on one side peripheral coating chromatic coating 206 formed, described touch-control sensing layer 203 comprises nano-silver thread electrode 2031, insulation course 204 and cabling district 202, described nano-silver thread electrode 2031 is directly molded on the lower surface of cover plate 208 visible area 2081, its periphery next-door neighbour is provided with cabling district 202, cabling district 202 is arranged insulation course 204, insulation course 204 is arranged coloured coating 206, namely insulation course 204 is provided with between cabling district 202 and coloured coating 206, coloured coating 206 is positioned at cover plate 208 lower surface.This embodiment is particularly useful for when coloured coating 206 is containing the conductive materials such as metal or metal oxide, and insulation course 204 plays the effect in isolation coloured coating 206 and cabling district 202.If coloured coating 206 uses insulating material, then insulation course 204 can omit, and makes product more lightening.Described coloured coating 206 thickness can be arranged within 10 μm, can be completed by one processing procedure.
In another embodiment, the lower surface of described coloured coating 206 and the lower surface horizontal direction of cover plate 208 visible area 2081 maintain an equal level.By grooving on cover plate 208, filling color coating in groove, forms coloured coating 206 with this.
In another embodiment, the lower surface of coloured coating 206 and the lower surface horizontal direction of cover plate 208 visible area 2081 do not maintain an equal level, and coloured coating 206 protrudes from cover plate 208 lower surface.Cabling district 202 and nano-silver thread electrode 203 are completed respectively by twice processing procedure.Nano-silver thread 1001 density in cabling district 202 can be made to be greater than nano-silver thread 1001 density of nano-silver thread electrode 203, to improve the conductance of cabling by regulating the concentration of nano-silver thread solution.Described cabling district 202 thickness is less than the thickness of nano-silver thread electrode 203, and coloured coating 206 is less than the thickness of nano-silver thread electrode 203 from the surperficial part protruded of cover plate 208 and the gross thickness of insulation course 204.
In electrical contact owing to having at least part to realize in a thickness direction between nano-silver thread electrode 203 and routing layer 202, therefore can not produce climbing problem.
Refer to Fig. 5, third embodiment of the invention contact panel 30 comprises a cover plate 308, it comprises visible area 3081 and shielded area 3083, one coloured coating 306, one bonding coat 307, one touch-control sensing layer 303 and a flexible base, board 301, described shielded area 3083 by cover plate 308 visible area 3081 at least on one side peripheral coating chromatic coating 306 formed, described touch-control sensing floor 303 comprises the cabling district 302 of nano-silver thread electrode 3031 and correspondence thereof, the visible area 3081 of the corresponding cover plate 308 of cabling district 302 difference of nano-silver thread electrode 3031 and correspondence thereof and shielded area 3083, described nano-silver thread electrode 3031 takes shape in flexible base, board 301 upper surface, and its periphery relying on flexible base, board 301 is provided with cabling district 302, it is bonding coat 307 above touch-control sensing layer 303, it bonding coat 307 is cover plate 308, the coloured coating 306 of the shielded area 3083 lower surface setting of cover plate 308 can cover the cabling district 302 of below just.
Described bonding coat 307 material is selected from the transparent binder such as transparent optical cement, pressure sensitive adhesive, UV glue.
In other embodiments, touch-control sensing layer 303 can be arranged on the lower surface of flexible base, board 301, and coloured coating 306 also can be arranged on the upper surface of cover plate 308.Described coloured coating 306 thickness can be arranged within 10 μm, can be completed by one processing procedure.
Refer to Fig. 6, fourth embodiment of the invention contact panel 40 comprises a cover plate 408, it comprises visible area 4081 and shielded area 4083, coloured coating 406, bonding coat 407,1 first touch-control sensing layer 413,1 second touch-control sensing layer 423 and a flexible base, board 401.Described shielded area 4083 by cover plate 408 visible area 4081 at least on one side peripheral coating chromatic coating 406 formed, described first touch-control sensing floor 413 comprises the first cabling district 4021 of the first nano-silver thread electrode 4131 and correspondence thereof, second touch-control sensing floor 423 comprises the second cabling district 4023 of the second nano-silver thread electrode 4231 and correspondence thereof, the visible area 4081 of the first nano-silver thread electrode 4131 and the corresponding cover plate 408 of the second nano-silver thread electrode 4231, the shielded area 4083 of the first corresponding cover plate 408 in cabling district 4021 and the second cabling district 4023, described flexible base, board 401 comprises upper surface and lower surface, described first touch-control sensing layer 413 takes shape in flexible base, board 401 lower surface, second touch-control sensing layer 423 takes shape in flexible base, board 401 upper surface, first nano-silver thread electrode 4131 and the second nano-silver thread electrode 4231 form capacitive sensing each other, realize touch controllable function.
Similar with the first embodiment, the periphery next-door neighbour of described first nano-silver thread electrode 4131 and the second nano-silver thread electrode 4231 same layer is provided with cabling district (non-label), and cabling district adopts nano-silver thread 1001 as cabling material.Shielded area 4083 lower surface of cover plate 408 covers cabling district just by the coloured coating 406 formed, and described coloured coating 406 thickness can be arranged within 10 μm, completes the cabling that just can cover and be made by nano-silver thread 1001 by one processing procedure.
Described flexible base, board 401 is generally square, and material is selected from PEEK (polyetheretherketone), PI (polyimide), PET (polyethylene terephthalate), PC (polycarbonate), PES (any one or its any both compound of polyethylene glycol succinate, PMMA (polymethylmethacrylate).And on flexible base, board 401, be formed with multiple its upper and lower two surperficial through holes 411 through, fill full conductive material in through hole 411 or form the coat of metal in through hole, for connecting the cabling corresponding with it, this conductive material can be conductive silver paste, copper slurry or other conducting metals slurry.The size of the diameter of phi of this through hole 411 is 20 μm of-1mm, is preferably 200 μm-600 μm.
Please continue to refer to Fig. 7, the first conductive electrode 4002, first cabling district 4021 that described first nano-silver thread electrode 4131 comprises multiple parallel equidistant arrangement in a first direction (x-direction) comprises many first cablings 4022.Wherein the first conductive electrode 4002 of arranging with the plurality of spacing respectively of these many first cablings 4022 and above-mentioned multiple through hole 411 one_to_one corresponding, its one end is electrically connected with the first corresponding conductive electrode 4002 respectively, and the other end extends to through hole 411 position corresponding with it.
Please continue to refer to Fig. 8, described second nano-silver thread electrode 4231 comprises multiple the second conductive electrode 4004, second cabling district 4023 in the upper parallel equidistant arrangement of second direction (Y-direction) and comprises many second cablings 4024 and multiple connecting line 4025.Wherein the second conductive electrode 4004 one_to_one corresponding of arranging with the plurality of spacing respectively of these many second cablings 4024, its one end is electrically connected with the second corresponding conductive electrode 4004 respectively, the other end extends to join domain 4027 place at this second nano-silver thread electrode 4,231 one side, link (non-label) corresponding with on it respectively connects, for connection flexible PCB (not shown).Connecting line 4025 one end connects multiple through holes 411 of above-mentioned correspondence, and the other end extends to join domain 4027 place, equally for be connected flexible PCB.
Compared with prior art, the present embodiment capacitance type touch-control panel 40 is by adopting via design, first cabling 4022 is connected with connecting line 4025 by through hole 411, and cause join domain 4027, so only need use flexible PCB and join domain 4027 one step press (bonding) processing procedure to complete assembling, this design simplifies flow process, reduces cost.
Refer to Fig. 9, fifth embodiment of the invention contact panel 50, comprise a cover plate 508, one coloured coating 506, one first touch-control sensing layer 513, one second touch-control sensing layer 523, bonding coat 507 and the first flexible base, board 5011, second flexible base, board 5013, cover plate 508 comprises visible area 5081 and shielded area 5083, coloured coating 506 is arranged at the lower surface of cover plate 508 shielded area 5083, cover plate 508 is made to form visible area 5081 and shielded area 5083, first touch-control sensing floor 513 comprises the first cabling district 5021 of the first nano-silver thread electrode 5131 and correspondence thereof, take shape in the first flexible base, board 5011 upper surface, second touch-control sensing floor 523 comprises the second cabling district 5023 of the second nano-silver thread electrode 5231 and correspondence thereof, take shape in the second flexible base, board 5013 upper surface, similar with previous embodiment, the shielded area 5083 of cabling district 5021, second, visible area 5081, the first corresponding cover plate 508 in cabling district 5023 of the corresponding cover plate 508 of the first nano-silver thread electrode 5131, second nano-silver thread electrode 5231.Bonding coat 507 comprises the first bonding coat 5071 and the second bonding coat 5073, first bonding coat 5071 bonds the second flexible base, board 5013 and the first touch-control sensing layer 513, second bonding coat 5073 bonds cover plate 508 and the second touch-control sensing layer 523, the similar in the cabling district of described first cabling district 5021 and the second cabling district 5023 structure and the first embodiment, complete by with processing procedure with each self-corresponding nano-silver thread electrode, and thickness is identical, described coloured coating 506 is formed at shielded area 5083 lower surface of cover plate 508, just the first cabling district 5021 and the second cabling district 5023 is covered, play good screening effect.
In other embodiments, the first cabling district 5021 and/or the second cabling district 5023 structure and each self-corresponding nano-silver thread electrode are completed respectively by twice processing procedure.The nano-silver thread density in cabling district can be made to be greater than nano-silver thread density in nano-silver thread electrode, to improve the conductance of cabling by regulating the concentration of nano-silver thread solution.
In other embodiments, the first touch-control sensing layer 513 is plastic in the first flexible base, board 5011 lower surface, and the second touch-control sensing layer 523 is also plastic in the lower surface of the second flexible base, board 5013.Coloured coating 506 is positioned at any surface of cover plate 508 upper and lower surface.
Refer to Figure 10, in another embodiment, the structure of described second touch-control sensing layer 523 and the touch-control sensing Rotating fields of the second embodiment similar, comprise the second nano-silver thread electrode 5231, second cabling district 5023 and insulation course 504, coloured coating 506 is formed at above insulation course 504, for covering the first cabling district 5021 and the second cabling district 5023.Second touch-control sensing layer 523 and cover plate 508 bond by the second bonding coat 5073.Should be appreciated that, the structure of the first touch-control sensing layer 513 and the second touch-control sensing layer 523 can be any one is said structure, can be also both said structure.
Refer to Figure 11, sixth embodiment of the invention contact panel 60 comprises cover plate 608,1 first touch-control sensing layer 613,1 second touch-control sensing layer 623, coloured coating 606, bonding coat 607 and a flexible base, board 601.Described cover plate 608 comprises visible area 6081 and shielded area 6083, described shielded area 6083 by cover plate 608 visible area 6081 at least on one side peripheral coating chromatic coating 606 formed, first touch-control sensing layer 613 takes shape in flexible base, board 601 upper surface, bonding coat 607 comprises the first bonding coat 6071 and the second bonding coat 6073, second touch-control sensing layer 623 is positioned at above the first bonding coat 6071, by the first bonding coat 6071 and the first touch-control sensing layer 613 bonding, second bonding coat 6073 is positioned at above the second touch-control sensing layer 623, and bond the second touch-control sensing layer 623 and cover plate 608, coloured coating 606.
The similar of described first touch-control sensing layer 613 and the structure of the second touch-control sensing layer 623 and the touch-control sensing layer of previous embodiment, all comprise corresponding nano-silver thread electrode and cabling district, the visible area 6081 of the corresponding cover plate 608 of difference and shielded area 6083, and nano-silver thread electrode is formed by with the disposable patterning of processing procedure with cabling district, the thickness of coloured coating is less than 10 μm.
In the one distortion of the present embodiment, the second bonding coat 6073 can be omitted, and the second touch-control sensing layer 623 is directly formed at the lower surface of cover plate 608, by bonding coat 607, cover plate 608 and flexible base, board 601, first touch-control sensing layer 613 bonded.
Similar with the 5th embodiment, in the present embodiment, the first touch-control sensing layer 613 and second any one structure of touch-control sensing layer 623 can similarly be all the structure of the second embodiment touch-control sensing layer, also can the structure of both similar second embodiment touch-control sensing layers.
Refer to Figure 12, be a kind of manufacture method process flow diagram of seventh embodiment of the invention contact panel, comprise the following steps for contact panel 10 described in the first embodiment:
S11 a: cover plate 108 is provided;
S12: apply one deck nano-silver thread 1001 layers at cover plate 108 lower surface;
S13: the shaping nano-silver thread electrode 103 of patterning, cabling district 102;
S14: cover plate 108 upper surface is along the shaping coloured coating 106 of surrounding; And
S15: protective seam 105 is set on cover plate 108 and coloured coating 106.
In step s 11, cover plate 108 can be glass, tempered glass, sapphire glass or flexible and transparent base material are as PEEK (polyetheretherketone), PI (polyimide), PET (polyethylene terephthalate), PC (polycarbonate), PES (any one or its both compound arbitrarily of polyethylene glycol succinate, PMMA (polymethylmethacrylate).
In step s 12, nano-silver thread 1001 applies with the form of nano-silver thread solution.The method of coating includes but not limited to: ink-jet, broadcast sowing, intaglio printing, letterpress, flexo, nano impression, serigraphy, Meyer bar, scraper for coating, rotary coating, pin paint (stylusplotting), slit type coating or flow coat.
In step s 13, nano-silver thread electrode 103 and cabling district 102 by together with the disposable patterning of technique formed, identical to ensure the thickness of the two.
Described cabling district 102 material is nano-silver thread 1001, and the trace width in cabling district 102 is 60 μm-120 μm, and be preferably 80 μm-100 μm, the spacing between adjacent traces is 10 μm-40 μm, is preferably 20 μm-30 μm.Concrete width and spacing are depending on the size of contact panel 10, and the size of usual contact panel 10 is larger, and nano-silver thread 1001 width of needs is wider, spacing is larger.
Its patterning method can be:
Wet etching: comprise the steps such as exposure, development, stripping;
Oxide etch: covered by the conductive region of anticipation, is placed in moisture oxygen enrichment and H2S environment, the nano-silver thread of non-conducting areas is oxidized to non-conductive metal oxide;
Laser etch, adopt laser by radium-shine for non-conducting areas nano-silver thread fall, formed nonconductive regions; Or
Electric arc high-frequency induction etches, and adopts hf electric arc bombardment non-conducting areas nano-silver thread, silver-colored line is gasified and forms non-conducting areas.
In step S14, coloured coating 106 comprises base-material, pigment, filler, solvent and auxiliary agent.Wherein base-material can be resin, to be selected from epoxy resin, urethane resin, alkyd/vibrin, acryl resin, amino resins any one or its combination.Pigment can be selected from organic pigment or inorganic pigment, and organic pigment is toluidine red, peacock green, everbright fast yellow etc. such as; Inorganic pigment can be metal or metal oxide pigment, and such as iron oxide red pigment, iron oxide yellow, strontium chromate, chrome green, fresh green, copper powder etc. are not as limit.Described solvent can be selected from water, acetone, ethanol etc.Described auxiliary agent comprises wetting agent, dryer, defoamer, thickening agent etc.
Because cabling adopts nano-silver thread 1001, its light transmission is better, presents almost transparent, coloured coating 106 just can be blocked easily, and therefore coloured coating 106 is without the need to repeatedly printing, and only needs one printing process to complete, thus thinner thickness, thickness is less than 10 μm.
The painting method of coloured coating 106 comprises the methods such as serigraphy, photogravure, offset printing, hectographic printing, ink jet printing, intaglio printing, spraying, sputter but not as limit.
Refer to Figure 13, be the second manufacture method process flow diagram of eighth embodiment of the invention contact panel, for contact panel 30 described in the 3rd embodiment, comprise the following steps:
S21 a: flexible base, board 301 is provided;
S22: the shaping nano-silver thread electrode 303 of flexible base, board 301 upper surface, cabling district 302;
S23: the coating coloured coating of cover plate 308 lower surface forms coloured coating 306; And
S24: the cover plate 308 in S23 is bonded by bonding coat 307 with the flexible base, board 301 in S22.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within principle of the present invention, equivalent replacement and improvement etc. all should comprise within protection scope of the present invention.
Claims (13)
1. a contact panel, is characterized in that, comprising:
One touch-control sensing layer, this touch-control sensing floor comprises the cabling district of nano-silver thread electrode and its correspondence, and the cabling material in cabling district is nano-silver thread;
One cover plate, is positioned at above touch-control sensing layer, comprises visible area and shielded area, and described shielded area is by least peripheral coating chromatic coating formation in visible area, and described coloured coating thickness is less than 10 μm.
2. contact panel as claimed in claim 1, is characterized in that: described coloured coating comprises color pigment, base-material, filler, solvent, auxiliary agent; Wherein color pigment comprises metal or metal oxide.
3. contact panel as claimed in claim 1, is characterized in that: the trace width in described cabling district is 60 μm-120 μm, and spacing is 10 μm-40 μm.
4. contact panel as claimed in claim 1, is characterized in that: the trace width in described cabling district is 80 μm-100 μm, and spacing is 20 μm-30 μm.
5. contact panel as claimed in claim 1, is characterized in that: the nano-silver thread density in described cabling district is greater than the nano-silver thread density in nano-silver thread electrode.
6. contact panel as claimed in claim 1, it is characterized in that: described coloured coating is positioned at the upper surface of cover plate, described touch-control sensing layer is arranged at the lower surface of described cover plate.
7. contact panel as claimed in claim 6, is characterized in that: the visible area of described coloured coating and cover plate arranges layer protective layer.
8. contact panel as claimed in claim 1, it is characterized in that: described coloured coating is positioned at the lower surface of cover plate, described cabling district is arranged at the side that coloured coating differs from cover plate.
9. contact panel as claimed in claim 2, it is characterized in that: described coloured coating is positioned at the lower surface of cover plate, its side differing from cover plate is provided with insulation course, is cabling district under insulation course.
10. contact panel as claimed in claim 1, it is characterized in that: comprise a flexible base, board and a bonding coat further, described touch-control sensing formable layer is in flexible base, board upper surface or lower surface, described coloured coating is positioned at upper surface or the lower surface of described cover plate, is bonded between cover plate and touch-control sensing layer by described bonding coat.
11. contact panels as claimed in claim 10, is characterized in that: comprise the second touch-control sensing layer further, described second touch-control sensing floor comprises the second nano-silver thread electrode and the second cabling district.
12. contact panels as claimed in claim 10, is characterized in that: described second touch-control sensing layer is positioned at the lower surface of described cover plate, and described coloured coating is for covering the second cabling district of the second touch-control sensing floor.
13. contact panels as claimed in claim 11, is characterized in that, comprise further:
Second flexible base, board;
Described second touch-control sensing layer, is placed in any one side of described second flexible base, board;
Second bonding coat, is placed between cover plate and the second touch-control sensing layer;
Described coloured coating is positioned at described cover plate upper surface or lower surface, for covering the cabling district of touch-control sensing floor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110280579.1A CN112987984A (en) | 2014-09-17 | 2014-09-17 | Touch panel |
| CN201410474228.4A CN105426025A (en) | 2014-09-17 | 2014-09-17 | Touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410474228.4A CN105426025A (en) | 2014-09-17 | 2014-09-17 | Touch panel |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110280579.1A Division CN112987984A (en) | 2014-09-17 | 2014-09-17 | Touch panel |
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| CN105426025A true CN105426025A (en) | 2016-03-23 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410474228.4A Pending CN105426025A (en) | 2014-09-17 | 2014-09-17 | Touch panel |
| CN202110280579.1A Pending CN112987984A (en) | 2014-09-17 | 2014-09-17 | Touch panel |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110280579.1A Pending CN112987984A (en) | 2014-09-17 | 2014-09-17 | Touch panel |
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| Country | Link |
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| CN (2) | CN105426025A (en) |
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| CN108920003A (en) * | 2018-06-30 | 2018-11-30 | 昆山国显光电有限公司 | Touch panel and preparation method thereof |
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| CN112987984A (en) | 2021-06-18 |
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Application publication date: 20160323 |