CN203149543U - Touch screen - Google Patents
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- CN203149543U CN203149543U CN 201320107064 CN201320107064U CN203149543U CN 203149543 U CN203149543 U CN 203149543U CN 201320107064 CN201320107064 CN 201320107064 CN 201320107064 U CN201320107064 U CN 201320107064U CN 203149543 U CN203149543 U CN 203149543U
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Abstract
The utility model discloses a touch screen, which comprises a first transparent insulating substrate, a second transparent insulating substrate, an inductive electrode layer and a driving electrode layer, wherein the second transparent insulating substrate comprises a first surface facing the first transparent insulating substrate, and a second surface opposite to the first surface; the inductive electrode layer is arranged between the first transparent insulating substrate and the second transparent insulating substrate and comprises a plurality of inductive electrodes which are independently arranged; and the driving electrode layer is arranged on the first surface or the second surface of the second transparent insulating substrate and comprises a plurality of driving electrodes which are independently arranged, wherein each driving electrode comprises a grid conductive circuit. The touch screen disclosed by the utility model is relatively low in cost and higher in sensitivity.
Description
Technical field
The utility model relates to the touch technology field, particularly relates to a kind of touch-screen.
Background technology
Touch-screen is widely used in the various electronic installations that have a display screen, as smart mobile phone, TV, PDA, panel computer, notebook computer, comprise industry and show computing machines such as touching machining tool, integrated computing machine and super or electronic equipment etc.Touch-screen can be divided into condenser type, resistance-type and surperficial optical waves type etc. according to principle of work.
Capacitive touch screen is to utilize the electric current induction of human body to carry out work.When finger touch was on metal level, because people's bulk electric field, user and touch screen surface formed with a coupling capacitance, and for high-frequency current, electric capacity is direct conductor, so finger siphons away a very little electric current from contact point.This electric current flows out the electrode from four jiaos of touch-screen respectively, and the electric current of these four electrodes of flowing through is directly proportional with the distance of finger to four jiaos, and controller draws touch point position by the accurate Calculation to these four current ratios.
Capacitive touch screen all adopts glass ITO or film ITO(also namely to form at glass or film at present) formation drive electrode and induction electrode pattern.But above-mentioned glass ITO or film ITO form drive electrode and there is following shortcoming in the induction electrode pattern: ITO drive electrode or induction electrode projection are scratched easily on glass surface or transparent membrane surface or drop on the one hand, cause producing yield and reduce; On the other hand, glass ITO or film ITO main material mainly are the rare metal indiums, phosphide material rare, therefore cost is relatively more expensive, and ITO is bigger at the resistance of doing the large scale touch-screen or side's resistance, influence signaling rate, cause touch sensitivity poor, thereby it is not good enough to influence whole electronic product user experience sense.
The utility model content
Based on this, be necessary to provide the touch-screen that a kind of cost is lower, sensitivity is higher.
A kind of touch-screen comprises: the first transparent insulation substrate; The second transparent insulation substrate, comprise towards the first surface of the described first transparent insulation substrate and with described first surface opposing second surface; The induction electrode layer is arranged between the described first transparent insulation substrate and the second transparent insulation substrate, and the induction electrode layer comprises some independent induction electrodes that arrange; Reach drive electrode layer, be arranged on first surface or the second surface of the described second transparent insulation substrate, drive electrode layer comprises some independent drive electrodes that arrange, and described each drive electrode comprises the grid conducting channel.
A kind of touch-screen comprises: rigidity transparent insulation substrate; The induction electrode layer is formed at a surface of described rigidity transparent insulation substrate, comprises some independent induction electrodes that arrange; The flexible and transparent dielectric substrate, comprise first surface and with described first surface opposing second surface; Drive electrode layer is formed at first surface or the second surface of described flexible and transparent dielectric substrate, comprises some independent drive electrodes that arrange; Each drive electrode of described drive electrode layer comprises the grid conducting channel; The first surface of described flexible and transparent dielectric substrate or second surface fit on the described rigidity transparent insulation substrate.
Above-mentioned touch-screen, because the drive electrode of touch-screen is made as the conductive grid that the grid conducting channel forms, therefore touch-screen do not exist exist when adopting film ITO such as the surface scratch easily or drop, problem such as cost is higher, the resistance of large scale time side is bigger, so the cost of touch-screen is lower, sensitivity is higher.
Description of drawings
Fig. 1 is the electronic equipment synoptic diagram of using the utility model touch-screen;
Fig. 2 is the cross sectional representation of the utility model first kind touch-screen;
Fig. 3 is the cross sectional representation of an embodiment shown in Figure 2;
Fig. 4 forms the floor map on the second transparent insulation substrate, one surface for drive electrode layer shown in Figure 3;
Fig. 5 is that Fig. 4 is along the schematic cross-section of aa ' profile line;
Fig. 6 is that Fig. 4 is along the schematic cross-section of bb ' profile line;
Fig. 7 is the floor map that induction electrode layer shown in Figure 3 forms the first transparent insulation substrate, one surface;
Fig. 8 is that Fig. 7 is along the schematic cross-section of AA ' profile line;
Fig. 9 is that Fig. 7 is along the schematic cross-section of BB ' profile line;
Figure 10 is the cross sectional representation of the utility model second class touch-screen;
Figure 11 is the cross sectional representation of an embodiment shown in Figure 10;
Figure 12 is the cross sectional representation of the utility model the 3rd class touch-screen;
Figure 13 is the cross sectional representation of an embodiment shown in Figure 12;
Figure 14 is the cross sectional representation of an embodiment of the utility model the 4th class touch-screen;
Figure 15 a and Figure 15 b are induction electrode and drive electrode arrangement and shape synoptic diagram;
Figure 16 a, 16b, 16c and 16d are respectively the A part that corresponds respectively among the embodiment among Figure 15 a or the partial enlarged drawing of the part of the B among Figure 15 b;
Figure 17 is the manufacture method process flow diagram of the touch-screen of an embodiment;
Figure 18 is the particular flow sheet of the step S104 in the flow process shown in Figure 17;
The drive electrode stratiform structural drawing of Figure 19 for obtaining according to the step S104 in the flow process shown in Figure 17;
Figure 20 is the manufacture method process flow diagram of the touch-screen of another embodiment;
Figure 21 is the particular flow sheet of the step S202 in the flow process shown in Figure 20.
Embodiment
For the ease of understanding the utility model, with reference to relevant drawings the utility model is described more fully below.Provided first-selected embodiment of the present utility model in the accompanying drawing.But the utility model can be realized with many different forms, be not limited to embodiment described herein.On the contrary, providing the purpose of these embodiment is to make to disclosure of the present utility model more thoroughly comprehensively.
Unless otherwise defined, the employed all technology of this paper are identical with the implication that belongs to those skilled in the art's common sense of the present utility model with scientific terminology.Employed term is not intended to be restriction the utility model just in order to describe the purpose of specific embodiment in instructions of the present utility model herein.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
" transparent " in the transparent insulation substrate described in the utility model can be regarded as " transparent " and " substantially transparent "; " insulation " in the transparent insulation substrate can be regarded as " insulation " and " dielectric medium (dielectric) " in the utility model.Therefore " the transparent insulation substrate " described in the utility model should be explained and include but not limited to transparent insulation substrate, substantially transparent dielectric substrate, transparent dielectric medium substrate and substantially transparent dielectric medium substrate.
See also Fig. 1, be one of them embodiment of the electronic equipment of using the utility model touch-screen, wherein said electronic equipment is smart mobile phone or flat computer.In above-mentioned electronic equipment 10, described touch-screen 100 fits in the upper surface of LCD display, is used for one of them I/O equipment of electronic equipment man-machine interaction.Can understand easily, also can be applicable to mobile phone, mobile communication phone, TV, panel computer, notebook computer, the industrial lathe that comprises touch display screen, aviation at described touch-screen 100 of the present utility model and touch computer equipments such as display electronics assemblies, GPS electronic installation, integrated computing machine and super.
As shown in Figure 2, be the cross sectional representation of the first kind embodiment of the utility model touch-screen.This touch-screen 100 comprises the first transparent insulation substrate 110, induction electrode layer 120, bonding coat 130, drive electrode layer 140 and the second transparent insulation substrate 150.Described induction electrode layer 120 is arranged between the described first transparent insulation substrate 110 and the second transparent insulation substrate 150.Wherein the second transparent insulation substrate 150 comprise towards the first surface 152 of the described first transparent insulation substrate and with described first surface opposing second surface 154.Described drive electrode layer 150 is formed at described first surface 152.In other embodiments, described drive electrode layer 150 also can be arranged at second surface 154.
Described bonding coat 130 is used for the first transparent insulation substrate 110 and the second transparent insulation substrate 150 are bonded into one.When described drive electrode layer 150 was arranged on first surface 152, described bonding coat 130 also was used for the setting of insulating between induction electrode layer 120 and the drive electrode layer 140.Bonding coat 130 can be selected optically transparent OCA(Optical Clear Adhesive for use) glue or LOCA glue.
Please refer to Fig. 3, is first kind touch-screen one embodiment cross sectional representation of the present utility model.Described induction electrode layer 120 comprises some independent induction electrode 120a that arrange.Please in the lump with reference to figure 4, described drive electrode layer 140 comprises some independent drive electrode 140a that arrange, and described each drive electrode 140a comprises grid conducting channel 140b." the independent setting " described in the utility model can be understood as and include but not limited to " the independent setting ", " isolate and arrange " or several explanations such as " insulation arrange ".
In capacitive touch screen, induction electrode and drive electrode are requisite two parts of touch-control sensing assembly.The general touch face near touch-screen of induction electrode, drive electrode is then relatively away from touch face.Drive electrode connects the sweep signal generating means, provides sweep signal by the sweep signal generating means, and induction electrode then produces electrical quantity when being touched by energized conductor changes, with touch sensitive zone or position of touch.
Wherein, each induction electrode that described inductive layer 120 comprises is electrically connected with the sensing of described touch-screen peripheral hardware detecting processing module, described each drive electrode that drives layer 140 is electrically connected with the pumping signal module of described touch-screen peripheral hardware, forms mutual capacitance between described induction electrode and the described drive electrode.When described touch screen surface generation touch action, the mutual capacitance value of touching central area can change, described touch action is converted to electric signal, through just can obtain the coordinate data of touch action center to the processing of capacitance domain transformation data, the electronic installation that can handle related data just can be judged the touch action correspondence according to the coordinate data of touch action center and fit in accurate position on the display screen at touch-screen, thereby finishes corresponding corresponding function or input operation.
The layer 120 of induction electrode described in the utility model and drive electrode layer 140 in different ways, different material and different process make.
Specifically, please in the lump with reference to figure 5 and Fig. 6, be respectively that Fig. 4 is along the schematic cross-section of aa ' profile line and bb ' profile line.Described drive electrode layer 140 comprises some separate grid conducting channel 140b.Described grid conducting channel 140b embeds or is embedded in the transparent insulating layer 160, and described transparent insulating layer 160 attaches to the surface of the second transparent insulation substrate 150 by adhesion promoting layer 21.The material of described grid conducting channel 140b is selected from gold, silver, copper, aluminium, zinc, vermeil or the alloy of the two at least.Above-mentioned material obtains easily, and cost is lower, and particularly the silver slurry makes above-mentioned grid conducting channel 140b, conducts electricity very well, and cost is low.
Can easily understand, it is in the majority that grid conducting channel 140b embeds or be embedded in the transparent insulating layer 160 mode, wherein a kind of optimal way is to form some staggered grid grooves at described transparent insulating layer 160, described grid conducting channel 140b is arranged at described groove, thereby makes grid conducting channel 140b to embed or to imbed transparent insulating layer 160 surfaces of the form second transparent insulation substrate 150.The second transparent insulation substrate 150 that can prevent from like this depending on described drive electrode 140a is in mobile or handling process, and drive electrode 140a firmly depends on the second transparent insulation substrate 150, is not easy to be damaged or to come off.Learn that easily grid conducting channel 140b also can directly embed or imbed the surface of the second transparent insulation substrate 150.
More particularly, the mesh spacing of described grid conducting channel 140b is d
1, and 100 μ m≤d
1＜600 μ m; The square resistance of grid conducting channel is R and 0.1 Ω/sq≤R＜200 Ω/sq.
The square resistance of described grid conducting channel 140b is that R affects the current signal transmission speed, thereby affects the touch-screen reaction sensitivity.So described grid conducting channel 140b square resistance is R and is preferably 1 Ω/sq≤R≤60 Ω/sq.Square resistance R in this scope, can significantly improve the electric conductivity of conducting film, significantly improve the transmission speed of electric signal, and low than 0.1 Ω/sq≤R＜200 Ω/sq to the requirement of precision, namely under the prerequisite that guarantees electric conductivity, reduce technological requirement, reduced cost.Certainly in manufacture process, the square resistance of grid conducting channel 140b is that R and mesh spacing, material, line footpath a plurality of factors such as (live widths) determine jointly.
The grid live width of described grid conducting channel 140b is d
2, and 1 μ m≤d
2≤ 10 μ m.The live width of grid influences the light transmission of conducting film, and the grid live width is more little, and light transmission is more good.Needing the mesh lines spacing d of conductive grid
1Be 100 μ m≤d
1When＜600 μ m, the square resistance R of grid conducting channel 140b are 0.1 Ω/sq≤R＜200 Ω/sq, grid live width d
2Be 1 μ m≤d
2≤ 10 μ m can meet the demands, and can improve the light transmission of whole touch screen simultaneously.The grid live width d of grid conducting channel 140b particularly
2Be 2 μ m≤d
2During＜5 μ m, the touch-screen glazed area is more big, and light transmission is more good, and accuracy requirement is relatively low.
In embodiment preferably, grid conducting channel 140b selects ag material for use, and adopts regular figure, mesh lines spacing 200 μ m～500 μ m; Grid conducting channel surface resistance is 4 Ω/sq≤R＜50 Ω/sq, and the coating weight of silver is 0.7g/m
2～1.1g/m
2
In embodiment one, get d
1=200 μ m, R=4～5 Ω/sq, argentiferous is measured 1.1g/m
2, grid live width d
2Get 500nm～5 μ m.Certainly, what of the value of square resistance R, silver content all can be subjected to grid live width d
2With the influence of the depth of groove of filling, grid live width d
2Depth of groove more big, that fill is more big, and square resistance can increase thereupon to some extent, silver content also increases thereupon.
In embodiment two, get d
1=300 μ m, R=10 Ω/sq, argentiferous is measured 0.9～1.0g/m
2, grid live width d
2Get 500nm～5 μ m.Certainly, what of the value of square resistance R, silver content all can be subjected to grid live width d
2With the influence of the depth of groove of filling, grid live width d
2Depth of groove more big, that fill is more big, and square resistance can increase thereupon to some extent, silver content also increases thereupon.
In embodiment three, get d
1=500 μ m, R=30～40 Ω/sq, argentiferous is measured 0.7g/m
2, grid live width d
2Get 500nm～5 μ m.Certainly, what of the value of square resistance R, silver content all can be subjected to grid live width d
2With the influence of the depth of groove of filling, grid live width d
2Depth of groove more big, that fill is more big, and square resistance can increase thereupon to some extent, silver content also increases thereupon.
Certainly, make the above-mentioned grid conducting channel 140b except selecting the metallic conduction material for use, can also select a kind of the making in electrically conducting transparent macromolecular material, Graphene or the carbon nano-tube for use.
Please in the lump with reference to figure 7, Fig. 8 and Fig. 9, the induction electrode of described induction electrode layer 120 adopts tin indium oxide (Indium Tin Oxide, ITO), tin-antiomony oxide (Antimony Doped Tin Oxide, ATO), indium zinc oxide (Indium Zinc Oxide, IZO), zinc oxide aluminum (Aluminum Zinc Oxide, AZO), any one material in poly-enedioxy thiophene (PEDOT), electrically conducting transparent macromolecular material, Graphene or the carbon nano-tube makes.Form the induction electrode of patterning by processes such as the etching on the engineering, printing, coating, photoetching or gold-tinted processing procedures.
In this class embodiment, described induction electrode layer 120 directly is formed at the surface of the first transparent insulation substrate 110, and the described first transparent insulation substrate is rigid substrate.More particularly, glass or clear plastic plate that the process intensive treatment that described rigid substrate adopts is crossed are called for short tempered glass or reinforced plastic plate.Wherein said tempered glass comprise have anti-dazzle, sclerosis, the functional layer of anti-reflection or atomizing functions.Wherein, have the functional layer of anti-dazzle or atomizing functions, formed by the applying coating with anti-dazzle or atomizing functions, coating comprises metal oxide particle; Functional layer with sclerosis function forms or directly passes through the sclerosis of chemistry or physical method by the high-molecular coating coating with sclerosis function; Functional layer with anti-reflection function is titania coating, magnesium fluoride coating or calcium fluoride coating.Be appreciated that adopting the good plastic plate of transmittance also can handle as above-mentioned tempered glass mode makes rigidity transparent insulation substrate described in the utility model.
Please further with reference to figure 3, the described second transparent insulation substrate is that flexible material is made, as selects in flexible polyethylene terephthalate (PET), polycarbonate (PC), tygon (PE), Polyvinylchloride (PVC), polypropylene (PP), polystyrene (PS) or the polymethylmethacrylate (PMMA) any one for use.In addition, in order to increase by the second transparent insulation substrate viscosity, all set up an adhesion promoting layer 141 at first surface or the second surface of the second transparent insulation substrate, firmly stick in the second transparent insulation substrate in order to go up transparent insulating layer.What be necessary to illustrate is, because the described second transparent insulation substrate is that flexible material is made, therefore in mobile or handling process, deformation or bending unavoidably take place flexible material, therefore adopts the drive electrode that embeds or imbed more reliable.
A certain specific embodiment in the first kind embodiment of the utility model touch-screen, the first transparent insulation substrate 110 adopts tempered glass; The substrate that the second transparent insulation substrate 150 adopts poly terephthalic acid class plastics (PET) to make, form transparent ITO material induction electrode layer at this tempered glass, form the driving layer that comprises the grid conducting channel on substrate one surface that poly terephthalic acid class plastics (PET) are made simultaneously, the flexible substrate that poly terephthalic acid class plastics (PET) are made fits on the first transparent insulation substrate 110 that tempered glass makes then, the purpose of above-mentioned embodiment fits on the tempered glass flexible substrate more conveniently, and makes the touch-screen that the utility model comprises.Above-mentioned manufacturing process is simple, reduces the thickness of touch-screen simultaneously.
See also Figure 10 and Figure 11, be the cross sectional representation of the utility model second class touch-screen and the cross sectional representation of an embodiment.This class embodiment is in the difference of first kind embodiment: described drive electrode layer 240 is arranged at the second surface of the second transparent insulation substrate 250.Perhaps change a kind of statement, relative first kind touch-sensitive display, the described second transparent insulation substrate, 250 back sides and the first transparent insulation substrate 210 that is provided with drive electrode layer 240 fits in one.And described induction electrode layer 220 forms identical with first kind embodiment with drive electrode layer 240.
See also Figure 12 and Figure 13, be the cross sectional representation of the utility model the 3rd class touch-screen and the cross sectional representation of an embodiment.With respect to first kind embodiment, described induction electrode layer 320 is formed at the first surface of the second transparent insulation substrate 350, and described drive electrode layer 340 is formed at the second surface of the second transparent insulation substrate 350, i.e. the DITO structure.Drive electrode layer 340 comprises conductive grid circuit 340b.By bonding coat 330 described DITO structure is fitted on the first transparent insulation substrate 310 then.In this class embodiment, the described first transparent insulation substrate can be selected any one in tempered glass, flexible polyethylene terephthalate (PET), polycarbonate (PC), tygon (PE), Polyvinylchloride (PVC), polypropylene (PP), polystyrene (PS) or the polymethylmethacrylate (PMMA) for use.
See also Figure 14, be the cross sectional representation of the utility model the 4th class touch-screen.This contact panel comprises the second transparent insulation substrate 450, drive electrode layer 440, bonding coat 430, induction electrode layer 420, the first transparent insulation substrate 410, bonding coat 430 and the 3rd transparent insulation substrate 470 that stacks gradually.Induction electrode layer 420 can be bonding by adhesion promoting layer 21 and the first transparent insulation substrate 410; Drive electrode layer 440 can be bonding by adhesion promoting layer 21 and the second transparent insulation substrate 450.Drive electrode layer 440 comprises grid conducting channel 440b.With respect to above-mentioned three class embodiments, this class embodiment also comprises the 3rd transparent insulation substrate 470, and described the 3rd transparent insulation substrate 470 can be selected tempered glass and pliability transparent panel for use.Wherein the pliability transparent panel can select for use in flexible polyethylene terephthalate (PET), polycarbonate (PC), tygon (PE), Polyvinylchloride (PVC), polypropylene (PP), polystyrene (PS) or the polymethylmethacrylate (PMMA) any one to make.
The embodiment of this class embodiment and above-mentioned three classes also has following difference: the first transparent insulation substrate 410 and the second transparent insulation substrate 450 all can adopt selects for use in tempered glass, flexible polyethylene terephthalate (PET), polycarbonate (PC), tygon (PE), Polyvinylchloride (PVC), polypropylene (PP), polystyrene (PS) or the polymethylmethacrylate (PMMA) any one to make.Wherein preferable mode of priority is, the first transparent insulation substrate 410 and the second transparent insulation substrate 450 all adopt flexible substrate, as flexible polyethylene terephthalate (PET).
See also Figure 15 a and Figure 15 b, comprise induction electrode and drive electrode arrangement and the shape floor map of a few class embodiments for the utility model.The induction electrode of described separate setting is in the parallel and equally spaced setting of first axial (X-axis); The drive electrode of described separate setting is in the parallel and equally spaced setting of second axial (Y-axis).Wherein Figure 15 a induction electrode and drive electrode be square shape structure (bar) and mutually vertical interlaced arrange; Figure 15 b induction electrode and drive electrode are that diamond shaped structure and mutual vertical interlaced are arranged.
Figure 16 a, 16b, 16c and 16d are respectively the A part that corresponds respectively among the embodiment among Figure 15 a or the partial enlarged drawing of the part of the B among Figure 15 b.
The grid conducting channel adopts non-regular grid shown in Figure 16 a and the 16b, and the manufacture difficulty of this non-regular grid conducting channel is lower, saves concerned process steps etc.
Grid conducting channel shown in 16c and the 16d, described grid conducting channel 140 are the regular figure of evenly arranging.Conductive grid 11 is arranged evenly rule, mesh lines spacing d
1All equate, can make the touch-screen printing opacity even on the one hand; On the other hand, the square resistance of grid conducting channel (resistance of abbreviation side) is evenly distributed, and resistance deviation is little, need not the setting for the revisal resistance deviation, makes imaging even.Can be the straight line grid pattern of nearly orthogonal form, crooked wave grid pattern etc.The unit grid of grid conducting channel can be regular figure, and for example triangle, rhombus or regular polygon etc. also can be irregular geometric figures.
As shown in figure 17, be the manufacture method flow process of the touch-screen of an embodiment.Please in the lump with reference to figure 3, this method comprises the steps.
S101: the first transparent insulation substrate is provided.The described first transparent insulation substrate 110 adopts rigidity transparent insulation substrate or flexible transparent insulation substrate, and wherein rigidity transparent insulation substrate can adopt tempered glass and pliability transparent panel.Wherein the pliability transparent panel can select for use in flexible polyethylene terephthalate (PET), polycarbonate (PC), tygon (PE), Polyvinylchloride (PVC), polypropylene (PP), polystyrene (PS) or the polymethylmethacrylate (PMMA) any one to make.
S102: the surface at the described first transparent insulation substrate forms the induction electrode layer.
S103: the second transparent insulation substrate is provided.The second transparent insulation substrate 150 is the flexible and transparent insulated substrate, can select for use in flexible polyethylene terephthalate (PET), polycarbonate (PC), tygon (PE), Polyvinylchloride (PVC), polypropylene (PP), polystyrene (PS) or the polymethylmethacrylate (PMMA) any one to make.The second transparent insulation substrate 150 is the pliability film, can be attached at easily on the first transparent insulation substrate 110 of rigidity.
S104: the surface at the described second transparent insulation substrate forms drive electrode layer.
Above-mentioned steps S101～S102 and step S103～S104 there is no sequencing.Both can finish earlier at the first transparent insulation substrate 110 and form induction electrode layer 120, and also can finish earlier at the second transparent insulation substrate 150 and form drive electrode layer 140, perhaps the two carries out simultaneously.
S105: the described second transparent insulation substrate is attached on the described first transparent insulation substrate.
The mode that attaches both can be as shown in Figure 3, is the one side that the second transparent insulation substrate 150 is provided with drive electrode layer 140 is fitted with the one side that the first transparent insulation substrate 110 is provided with induction electrode layer 120.Also can be as shown in figure 11, the second transparent insulation substrate flexibility insulated substrate 250 not established the one side of drive electrode layer 240 and fitted with the one side that the first transparent insulation substrate 210 is provided with induction electrode layer 220.
Specifically comprise with reference to Figure 18～19 above-mentioned steps S104:
S141: be coated with transparent insulating layer at the described second transparent insulation substrate.Transparent insulating layer 160 is exemplified as UV glue.For increasing the adhesion of impression glue and the second transparent insulation substrate, can between the second transparent insulation substrate 150 and transparent insulating layer 160, add adhesion promoting layer.
S142: described transparent insulating layer impression forms the grid groove.With reference to Figure 19, after the process mould was pressed on the transparent insulating layer 160, form a plurality of grid grooves 170 identical with the drive electrode shape, drive electrode layer 140 is formed in this grid groove 170.
S143: in described grid groove, add metal paste and carry out blade coating and sintering curing to form conductive grid.Metal paste is added in the grid groove 170, and through blade coating, make in the grid groove and fill metal paste, carry out sintering curing then and can obtain conductive grid.This metal paste is preferably nanometer silver paste.Among other embodiment, the metal that forms the grid conducting channel can also adopt the alloy of the two at least of gold, silver, copper, aluminium, zinc, vermeil or above metal.
In other embodiment, the grid conducting channel can also adopt other technologies to realize, for example photoetching process.
Further, with reference to Figure 14, can also form transparent panel at the first transparent insulation substrate.This transparent panel is selected tempered glass or pliability transparent panel for use.
As shown in figure 20, be the manufacture method flow process of the touch-screen of another embodiment.Please in the lump with reference to Figure 13, this method comprises the steps.
S201: the first transparent insulation substrate is provided.The described first transparent insulation substrate 310 adopts rigidity transparent insulation substrate or flexible transparent insulation substrate, and wherein rigidity transparent insulation substrate can adopt tempered glass and pliability transparent panel.Wherein the pliability transparent panel can select for use in flexible polyethylene terephthalate (PET), polycarbonate (PC), tygon (PE), Polyvinylchloride (PVC), polypropylene (PP), polystyrene (PS) or the polymethylmethacrylate (PMMA) any one to make.
S202: the second transparent insulation substrate is provided.The second transparent insulation substrate 350 is the flexible and transparent insulated substrate, can adopt and can select for use in flexible polyethylene terephthalate (PET), polycarbonate (PC), tygon (PE), Polyvinylchloride (PVC), polypropylene (PP), polystyrene (PS) or the polymethylmethacrylate (PMMA) any one to make.The second transparent insulation substrate 350 is the pliability film, can be attached at easily on the first transparent insulation substrate 310.
S203: the surface at the described second transparent insulation substrate forms drive electrode layer.
S204: another surface at the described second transparent insulation substrate forms the induction electrode layer.
Above-mentioned steps S203 and S204 there is no sequencing.Both can finish earlier at the second transparent insulation substrate 350 and form induction electrode layer 320, and also can finish earlier at the second transparent insulation substrate 350 and form drive electrode layer 340.
S205: the described first transparent insulation substrate is attached on the described second transparent insulation substrate.
The mode that attaches specifically is the one side applying that the first transparent insulation substrate 310 and the second transparent insulation substrate 350 is provided with induction electrode layer 320.
With reference to Figure 19～21, above-mentioned steps S204 specifically comprises:
S241: be coated with transparent insulating layer at the described second transparent insulation substrate.Transparent insulating layer 160 is exemplified as UV glue.For increasing the adhesion of impression glue and flexible insulation substrate, can between the second transparent insulation substrate 150 and transparent insulating layer 160, add adhesion promoting layer.
S242: described transparent insulating layer impression forms the grid groove.With reference to Figure 19, after the process mould was pressed on the transparent insulating layer 160, form a plurality of grid grooves 170 identical with the drive electrode shape, drive electrode layer 140 is formed in this grid groove 170.
S243: in described grid groove, add metal paste and carry out blade coating and sintering curing to form conductive grid.Metal paste is added in the grid groove 170, and through blade coating, make in the grid groove and fill metal paste, carry out sintering curing then and can obtain conductive grid.This metal paste is preferably nanometer silver paste.Among other embodiment, the metal that forms the grid conducting channel can also adopt the alloy of the two at least of gold, silver, copper, aluminium, zinc, vermeil or above metal.
In other embodiment, the grid conducting channel can also adopt other technologies to realize, for example photoetching process.
Further, can also form transparent panel at the first transparent insulation substrate.This transparent panel is selected tempered glass or pliability transparent panel for use.
Said method is made as the conductive grid that the grid conducting channel forms with the drive electrode of touch-screen, therefore touch-screen do not exist exist when adopting film ITO such as the surface scratch easily or drop, problem such as cost is higher, the resistance of large scale time side is bigger, so the cost of touch-screen is lower, sensitivity is higher.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (26)
1. a touch-screen is characterized in that, comprising:
The first transparent insulation substrate;
The second transparent insulation substrate, comprise towards the first surface of the described first transparent insulation substrate and with described first surface opposing second surface;
The induction electrode layer is arranged between the described first transparent insulation substrate and the second transparent insulation substrate, and the induction electrode layer comprises some independent induction electrodes that arrange; And
Drive electrode layer is arranged on first surface or the second surface of the described second transparent insulation substrate, and drive electrode layer comprises some independent drive electrodes that arrange, and described each drive electrode comprises the grid conducting channel.
2. touch-screen according to claim 1 is characterized in that, the mesh spacing of described grid conducting channel is d
1, and 100 μ m≤d
1＜600 μ m; The square resistance of grid conducting channel is R and 0.1 Ω/sq≤R＜200 Ω/sq.
3. touch-screen according to claim 1 is characterized in that, also comprises the transparent insulating layer that is formed at the described second transparent insulation substrate one surface, and described grid conducting channel embeds or imbeds and is arranged in the transparent insulating layer.
4. touch-screen according to claim 3 is characterized in that, described transparent insulating layer forms some staggered grid grooves, and described grid conducting channel is arranged at described grid groove.
5. according to claim 1,2 or 3 described touch-screens, it is characterized in that the described first transparent insulation substrate is rigid substrate, the described second transparent insulation substrate is flexible substrate.
6. touch-screen according to claim 5, it is characterized in that, the first transparent insulation substrate of described rigidity is tempered glass, and the second transparent insulation substrate of described flexibility is any one in flexible polyethylene terephthalate, polycarbonate, tygon, Polyvinylchloride, polypropylene, polystyrene or the polymethylmethacrylate.
7. according to claim 1,2 or 3 described touch-screens, it is characterized in that the described first transparent insulation substrate is flexible substrate, the second transparent insulation substrate is selected rigid substrate or flexible substrate for use.
8. touch-screen according to claim 7 is characterized in that, also comprises the transparent panel that fits in the described first transparent insulation substrate one surface.
9. touch-screen according to claim 8 is characterized in that, described transparent panel is selected tempered glass or pliability transparent panel for use.
10. according to claim 1,2 or 3 described touch-screens, it is characterized in that, also comprise bonding coat, described bonding coat is formed between the described first transparent insulation substrate and the second transparent insulation substrate.
11. touch-screen according to claim 10 is characterized in that, described bonding coat is optically transparent OCA glue or LOCA glue.
12. touch-screen according to claim 1 is characterized in that, described induction electrode adopts a kind of the making in tin indium oxide, tin-antiomony oxide, indium zinc oxide, zinc oxide aluminum or the poly-enedioxy thiophene.
13., it is characterized in that the grid of described grid conducting channel adopts the regular geometric patterned grid according to any described touch-screen of claim 1 to 4.
14., it is characterized in that the grid of described grid conducting channel adopts the irregular geometric figures grid according to any described touch-screen of claim 1 to 4.
15. according to any described touch-screen of claim 1 to 4, it is characterized in that described grid conducting channel is selected ag material for use, the mesh lines spacing 200 μ m～500 μ m of grid conducting channel; Side's resistance of grid conducting channel is 4 Ω/sq≤R＜50 Ω/sq, and the coating weight of silver is 0.7g/m
2～1.1g/m
2
16., it is characterized in that described grid conducting channel selects for use in the two the alloy material at least of gold, silver, copper, aluminium, zinc, vermeil or above metal any one to make according to any described touch-screen of claim 1 to 4.
17. according to claim 3 or 4 described touch-screens, described transparent insulating layer can be light binding, hot-setting adhesive or do adhesive curing formation certainly.
18. a touch-screen comprises:
Rigidity transparent insulation substrate;
The induction electrode layer is formed at a surface of described rigidity transparent insulation substrate, comprises some independent induction electrodes that arrange;
The flexible and transparent dielectric substrate, comprise first surface and with described first surface opposing second surface;
Drive electrode layer is formed at first surface or the second surface of described flexible and transparent dielectric substrate, comprises some independent drive electrodes that arrange; Each drive electrode of described drive electrode layer comprises the grid conducting channel;
The first surface of described flexible and transparent dielectric substrate or second surface fit on the described rigidity transparent insulation substrate.
19. touch-screen according to claim 18 is characterized in that, the mesh spacing of described grid conducting channel is d
1, and 100 μ m≤d
1＜600 μ m; The square resistance of grid conducting channel is R and 0.1 Ω/sq≤R＜200 Ω/sq.
20. touch-screen according to claim 18 is characterized in that, also comprises the transparent insulating layer that is formed at described flexible and transparent dielectric substrate one surface, described grid conducting channel embeds or imbeds and is arranged in the transparent insulating layer.
21. touch-screen according to claim 20 is characterized in that, described transparent insulating layer forms some staggered grid grooves, and described grid conducting channel is arranged at described grid groove.
22. touch-screen according to claim 18, it is characterized in that, described rigidity transparent insulation substrate is tempered glass, and described flexible and transparent dielectric substrate is selected any one in flexible polyethylene terephthalate, polycarbonate, tygon, Polyvinylchloride, polypropylene, polystyrene or the polymethylmethacrylate for use.
23. touch-screen according to claim 18 is characterized in that, described induction electrode adopts transparent tin indium oxide material to make.
24., it is characterized in that the grid of described grid conducting channel adopts the regular geometric patterned grid according to any described touch-screen of claim 18 to 23.
25., it is characterized in that the grid of described grid conducting channel adopts the irregular geometric figures grid according to any described touch-screen of claim 18 to 23.
26. touch-screen according to claim 24 is characterized in that, the unit grid of described grid is shaped as single triangle, rhombus or regular polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107064 CN203149543U (en) | 2013-03-08 | 2013-03-08 | Touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107064 CN203149543U (en) | 2013-03-08 | 2013-03-08 | Touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203149543U true CN203149543U (en) | 2013-08-21 |
Family
ID=48977055
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320107064 Expired - Fee Related CN203149543U (en) | 2013-03-08 | 2013-03-08 | Touch screen |
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| Country | Link |
|---|---|
| CN (1) | CN203149543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108108058A (en) * | 2018-01-05 | 2018-06-01 | 业成科技（成都）有限公司 | Touch sensing device |
-
2013
- 2013-03-08 CN CN 201320107064 patent/CN203149543U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108108058A (en) * | 2018-01-05 | 2018-06-01 | 业成科技（成都）有限公司 | Touch sensing device |
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