CN203376733U - Transparent conducting film and capacitive touch screen - Google Patents
Transparent conducting film and capacitive touch screen Download PDFInfo
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- CN203376733U CN203376733U CN201320463739.7U CN201320463739U CN203376733U CN 203376733 U CN203376733 U CN 203376733U CN 201320463739 U CN201320463739 U CN 201320463739U CN 203376733 U CN203376733 U CN 203376733U
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Abstract
The utility model provides a transparent conducting film and a capacitive touch screen. The transparent conducting film comprises a base layer, a sensing electrode layer and a driving electrode layer, wherein the base layer, the sensing electrode layer and the driving electrode layer overlap one another. At least one of the sensing electrode layer and the driving electrode layer comprises at least one first area, and grid-shaped conductive wires are filled into the first area. Electrode wires surround the periphery of the grid-shaped conductive wires, and the electrode wires are electrically connected with the grid-shaped conductive wires. According to the transparent conducting film, the problem that an existing transparent conducting film is high in cost can be solved, and therefore the cost of the capacitive touch screen can be reduced, and the flexibility of the transparent conducting film can be improved.
Description
Technical field
The utility model relates to the electronic touch technology, relates in particular to a kind of nesa coating and capacitive touch screen.
Background technology
Touch-screen, as a kind of inductive arrangement that receives the input signals such as touch, has given information interaction brand-new looks, is a kind of brand-new information interaction equipment.Nesa coating has good electric conductivity with it, and has advantages of high transmission rate at visible light wave range, and be mainly used in receiving touch and wait input signal, be an important component part of touch-screen.
Capacitive touch screen generally includes substrate, is provided with drive electrode layer and induction electrode layer in substrate, and two electrode layers are nesa coating, are used for detecting touch signal.Traditional nesa coating adopts tin indium oxide (Indium Tin Oxides usually, ITO) as the material of conductive layer in nesa coating, when preparation ITO conductive layer, need to first carry out the ITO plated film whole an of substrate, then carry out etching on whole the ITO film plated, form the ITO pattern.Because indium is a kind of metal material of costliness, adopt ITO to make conductive layer, promoted to a great extent the cost of nesa coating, also indirectly improved the cost of touch-screen.And, in the manufacturing process of nesa coating, a large amount of ITO is etched, cause a large amount of noble metal wastes, also can be to environment.
The utility model content
The utility model provides a kind of nesa coating and capacitive touch screen, for solving the higher problem of existing nesa coating cost.
The utility model provides a kind of nesa coating, comprises substrate, induction electrode layer and the drive electrode layer of stacked setting;
Described induction electrode layer and/or drive electrode layer comprise at least one first area, are filled with latticed conductive thread in described first area;
The edge of described latticed conductive thread is arranged with electrode wires, and described electrode wires is electrically connected to described latticed conductive thread.
In embodiment, arrange along first direction each first area of described induction electrode layer therein;
Arrange along second direction each first area of described drive electrode layer;
Described induction electrode layer and drive electrode layer also comprise at least one second area, and described second area is connected between adjacent described first area;
Second area in described drive electrode layer is across the second area of crossing in the induction electrode layer, and comprises insulation course between the second area of described induction electrode layer and drive electrode layer.
Therein in embodiment, described first area be shaped as regular polygon, described second area be shaped as linear or the inner regular polygon that is filled with latticed conductive thread.
In embodiment, described drive electrode layer or induction electrode layer are arranged on described substrate surface therein; Or
Described nesa coating also comprises hypothallus, and described hypothallus is arranged on the surface of described substrate, and described drive electrode layer or induction electrode layer are arranged on the surface of described hypothallus.
In embodiment, described substrate adopts thermoplastic or pet material to make therein.
In embodiment, described hypothallus adopts ultraviolet cured adhesive, impression glue or makrolon material to make therein.
In embodiment, also comprise: cover the protective clear layer on described drive electrode layer or induction electrode layer therein.
In embodiment, also comprise therein: the lead-in wire electrode forms in the 3rd zone of described lead-in wire electrode and is filled with latticed conductive thread;
Described lead-in wire electrode is connected with the described electrode wires in the induction electrode layer with described drive electrode layer respectively.
Therein in embodiment, described conductive thread, electrode wires, and/or the lead-in wire electrode adopts at least one in Cu, Ag, Ag-C, Al, Ni, Cr and Ni-P to make.
In embodiment, the grid that described conductive thread forms is regular polygon therein.
Therein in embodiment, described conductive thread, electrode wires, and/or the lead-in wire electrode adopts the exposure imaging technology to print to form.
The utility model also provides a kind of capacitive touch screen, comprises the transparent panel, nesa coating and the control device that are cascading;
Described nesa coating adopts nesa coating as above.
The nesa coating that the present embodiment provides, form induction electrode layer and drive electrode layer by the form with latticed conductive thread, and the edge at latticed conductive thread is arranged with electrode wires, can solve the higher problem of existing nesa coating cost, and then reduce to adopt the cost of the electronic product that nesa coating makes, the present embodiment provides electrode wires and the conductive thread in nesa coating to adopt common conductive material to get final product, and does not need to adopt expensive indium metal.And at the latticed conductive thread of the inner filling in each first area, can also improve the light transmission rate of nesa coating, can also improve induction sensitivity simultaneously.
The accompanying drawing explanation
The structural representation of the nesa coating that Fig. 1 provides for the utility model embodiment mono-;
The mesh shape schematic diagram that conductive thread in the nesa coating that Fig. 2 a-2d provides for the utility model embodiment mono-forms;
The structural representation of the nesa coating that Fig. 3 provides for the utility model embodiment bis-;
The structural representation that Fig. 4 is electrode in Fig. 3;
The structural representation of the nesa coating that Fig. 5 provides for the utility model embodiment tri-;
The cross sectional view one of the nesa coating that Fig. 6 provides for the utility model embodiment tri-;
The cross sectional view two of the nesa coating that Fig. 7 provides for the utility model embodiment tri-;
The structural representation of the nesa coating that Fig. 8 provides for the utility model embodiment tetra-;
The cross sectional view of the nesa coating that Fig. 9 provides for the utility model embodiment tetra-.
Embodiment
Embodiment mono-
The structural representation of the nesa coating that Fig. 1 provides for the utility model embodiment mono-, the mesh shape schematic diagram that the conductive thread in the nesa coating that Fig. 2 a-2d provides for the utility model embodiment mono-forms.As shown in Figure 1, the present embodiment provides a kind of nesa coating, can be applied in the fields such as flat-panel monitor, photovoltaic device, contact panel and electromagnetic screen.This nesa coating can comprise substrate 1, induction electrode layer 2 and the drive electrode layer 3 of stacked setting; Induction electrode layer 2 and/or drive electrode layer 3 comprise at least one 51，Gai first area, first area 51 and are filled with latticed conductive thread; The edge of latticed conductive thread is arranged with electrode wires 4, electrode wires 4 with latticed conductive thread for being electrically connected to.
Wherein, the position relationship between substrate 1, induction electrode layer 2 and drive electrode layer 3 can have a variety of arrangements.For example: a kind of mode is induction electrode layer 2 to be arranged on to the surface of substrate 1, drive electrode layer 3 is arranged on the surface of induction electrode layer 2, and need to arrange the layer of transparent dielectric film between induction electrode layer 2 and drive electrode layer 3, to keep pattern and drive electrode layer 3 in induction electrode layer 2, keep insulation.The position of induction electrode layer 2 and drive electrode layer 3 can exchange, also drive electrode layer 3 can be arranged on to the surface of substrate 1, induction electrode layer 2 is arranged on drive electrode layer 3, and between induction electrode layer 2 and drive electrode layer 3, the layer of transparent dielectric film is set.
The second way is that induction electrode layer 2 and drive electrode layer 3 are separately positioned on a side surface of two substrates 1, be that induction electrode layer 2 is arranged on the first surface of the first substrate, drive electrode layer 3 is arranged on the first surface of the second substrate, and second surface and the laminating of the first surface in the second substrate relative with first surface in the first substrate arrange.
The third mode is that induction electrode layer 2 and drive electrode layer 3 are set respectively on two of substrate 1 relative surfaces.
Perhaps induction electrode layer 2 and drive electrode layer 3 all can also be arranged on a surface of substrate 1, and the pattern each interval of two electrode layers is to keep insulation.
Concrete, induction electrode layer 2 can be printed on conductive thread and electrode wires 4 in substrate 1 by the mode of serigraphy or inkjet printing, or also can adopt the mode of exposure imaging, forms conductive pattern.
Above-mentioned substrate 1 can adopt thermoplastic to make, for example polycarbonate or polymethylmethacrylate, perhaps, also can adopt the polyethylene terephtalate material to make, there is higher light transmission rate, and play carrying induction electrode layer 2 or drive electrode layer 3, and the two is kept to the effect of insulation.Perhaps, those skilled in the art also can adopt other mode, and the present embodiment is not construed as limiting this.
In such scheme, the shape of first area 51 can be regular polygon, and shapes such as rectangle, regular hexagon also can be irregularly shaped at random for other.
The arrangement mode of first area 51 also can have multiple, for example first area 51 is arranged into to multirow, and wherein every a line is provided with the first area 51 of a rectangle, or every a line is provided with a plurality of continuous hexagonal first areas 51.The electrode wires 4 of the first area 51 in every a line keeps being electrically connected to, and the first area 51 between each row keeps insulation.Be filled with latticed conductive thread in the first area 51 of induction electrode layer 2 and/or drive electrode layer 3, each conductive thread mutually intersects and is electrically connected to, and keeps being electrically connected to electrode wires 4.
Can be according to concrete shape and the arrangement mode of first area 51, by induction electrode layer 2, with the first area 51 in drive electrode layer 3, be set to mutually vertical, can be with reference to figure 1, each first area 51 in induction electrode layer 2 is arranged in multirow along first direction, first area 51 in drive electrode layer 3 is arranged in multirow along second direction, wherein, first direction is mutually vertical with second direction.The 51 junction, two first areas of arranging along second direction in drive electrode layer 3 across in induction electrode layer 2 along the 51 junction, two first areas of arranging on first direction.
Every a line first area 51 in drive electrode layer 3, can be used as a drive electrode 31, by wire, is connected to driving power, receives driving voltage; For the every a line first area 51 in induction electrode layer 2, can be used as an induction electrode 21 and export induction current by wire.
Each conductive thread intersects to form grid mutually, and the shape of this grid can be regular polygon, square as shown in Figure 2 a-2d of example, parallelogram, regular hexagon etc., or also can be irregularly shaped for other.
The purpose that is provided with latticed conductive thread in first area 51 is to improve the light transmission rate of nesa coating, and can increase the induction area of touch operation, improves sensitivity.
Electrode wires in drive electrode 31 or induction electrode 21, and conductive thread can adopt a kind of the making in Cu, Ag, Ag-C, Al, Ni, Cr and Ni-P, or the multiple alloy of making.Those skilled in the art can arrange the distribution density of latticed conductive thread voluntarily, to improve touch sensible sensitivity in the light transmission rate guaranteeing nesa coating.
The nesa coating that the present embodiment provides, form induction electrode layer and drive electrode layer by the form with latticed conductive thread, and the edge at latticed conductive thread is arranged with electrode wires, can solve the higher problem of existing nesa coating cost, and then reduce to adopt the cost of the electronic product that nesa coating makes, the present embodiment provides electrode wires and the conductive thread in nesa coating to adopt common conductive material to get final product, and does not need to adopt expensive indium metal.And at the latticed conductive thread of the inner filling in each first area, can also improve the light transmission rate of nesa coating, can also improve induction sensitivity simultaneously.
Embodiment bis-
The structural representation of the nesa coating that Fig. 3 provides for the utility model embodiment bis-, the structural representation that Fig. 4 is electrode in Fig. 3.As shown in Figure 3 and Figure 4, the present embodiment is on the basis of above-described embodiment, and the implementation of another kind of nesa coating is provided.Induction electrode layer 2 and drive electrode layer 3 also comprise at least one second area 52, and second area 52 is connected between adjacent first area 51; Second area 52 in drive electrode layer 3 is across the second area 52 of crossing in induction electrode layer 2, and comprises insulation course between the second area 52 of induction electrode layer 2 and drive electrode layer 3.The shape of second area 52 can be linear for multiple, also can fill for inside the regular polygon of oil network trellis conductive thread.Consider second area 52 realized induction electrode 21 and drive electrode 31 across structure, therefore second area 52 can be set to the linear that the linear pattern wire by many electrical connections forms, so that two first areas 51 are coupled together, perhaps also can fill the structure that latticed conductive thread forms for the electrode wires 4 and the inside that are enclosed by edge, specifically can be with reference to the set-up mode of first area 51.
The nesa coating that the present embodiment provides, form induction electrode layer and drive electrode layer by the form with latticed conductive thread, and the edge at latticed conductive thread is arranged with electrode wires, can solve the higher problem of existing nesa coating cost, and then reduce to adopt the cost of the electronic product that nesa coating makes, the present embodiment provides electrode wires and the conductive thread in nesa coating to adopt common conductive material to get final product, and does not need to adopt expensive indium metal.And at the latticed conductive thread of the inner filling in each first area, can also improve the light transmission rate of nesa coating, can also improve induction sensitivity simultaneously.
Embodiment tri-
The structural representation of the nesa coating that Fig. 5 provides for the utility model embodiment tri-.The present embodiment is on the basis of above-described embodiment, and the structure of nesa coating is further optimized.As shown in Figure 5, suppose that induction electrode layer 2 is arranged on the upper strata of substrate, drive electrode layer 3 is arranged on the upper strata of induction electrode layer 2, and arrange along first direction the first area in induction electrode layer 2 51, arrange along second direction first area 51 in drive electrode layer 3, and first direction is vertical with second direction.Induction electrode layer 2 in Fig. 5 and drive electrode layer 3 only include the 51 edge, 51， first area, first area that is shaped as rectangle and are set to electrode wires 4.51 inside, first area of electrode wires 4 envelopes are provided with cross one another conductive thread, each conductive thread intersects to form latticed, the shape of grid can be regular polygon, such as square, parallelogram, regular hexagon etc., can be also perhaps irregular shape, specifically can be with reference to the mesh shape shown in Fig. 2 a-2d.
Concrete, can be with reference to Fig. 6 and Fig. 7, the cross sectional view one of the nesa coating that Fig. 6 provides for the utility model embodiment tri-, the cross sectional view two of the nesa coating that Fig. 7 provides for the utility model embodiment tri-.If induction electrode layer 2 is arranged on the surface of substrate 1, drive electrode layer 3 is arranged on the top (not looking out in Fig. 6 and Fig. 7) of induction electrode layer 2.Can adopt the mode of exposure imaging that each electrode wires 4 and conductive thread in induction electrode layer 2 are printed in substrate 1, protrude from substrate 1 surface.In addition, similarly, if drive electrode layer 3 is arranged on the surface of substrate 1, induction electrode layer 2 is arranged on the top of drive electrode layer 3.Above substrate, protective clear layer 6 can also be set, cover on drive electrode layer 3 and induction electrode layer 2, be scratched to prevent conductive material.Protective clear layer 6 can adopt ultraviolet light (Ultraviolet Rays is called for short UV) to solidify the materials such as glue, impression glue or polycarbonate and make, and has higher light transmission rate.
Perhaps, nesa coating also comprises hypothallus 7, hypothallus 7 is arranged on the surface of substrate 1, drive electrode layer 3 or induction electrode layer 2 are arranged on the surface of hypothallus 7, hypothallus 7 also can adopt ultraviolet light (Ultraviolet Rays, abbreviation UV) solidify the materials such as glue, impression glue or polycarbonate and make, can increase the adhesion of conductive material.Also protective clear layer 6 can be set above hypothallus 7, cover on drive electrode layer 3 and induction electrode layer 2, prevent that conductive material is scratched, avoid conducting film damaged.The light transmission rate of the nesa coating that technique scheme provides can be greater than 86%.
The nesa coating that the present embodiment provides, form induction electrode layer and drive electrode layer by the form with latticed conductive thread, and the edge at latticed conductive thread is arranged with electrode wires, can solve the higher problem of existing nesa coating cost, and then reduce to adopt the cost of the electronic product that nesa coating makes, the present embodiment provides electrode wires and the conductive thread in nesa coating to adopt common conductive material to get final product, and does not need to adopt expensive indium metal.And at the latticed conductive thread of the inner filling in each first area, can also improve the light transmission rate of nesa coating, can also improve induction sensitivity simultaneously.In addition, adopt hypothallus can increase the adhesion of conductive material, adopt protective seam that drive electrode layer and induction electrode layer are around in to inside, prevent that conductive material is scratched, avoid conducting film damaged.
Embodiment tetra-
The structural representation of the nesa coating that Fig. 8 provides for the utility model embodiment tetra-, the cross sectional view of the nesa coating that Fig. 9 provides for the utility model embodiment tetra-, as shown in Figure 8 and Figure 9, nesa coating can also comprise lead-in wire electrode 8, be filled with latticed conductive thread in the 3rd zone of formation lead-in wire electrode 8, lead-in wire electrode 8 is connected with the electrode wires 4 of drive electrode 31 and induction electrode 21 respectively, for inputting driving voltage or output induction current.
Concrete, the electrode wires 4 of each drive electrode 31 in drive electrode layer 3 is connected with a lead-in wire electrode 8, by this lead-in wire electrode 8, receives driving voltage.The electrode wires 4 of each induction electrode 21 in induction electrode layer 2 is connected with a lead-in wire electrode 8, by these lead-in wire electrode 8 output induction currents.The scheme of drive electrode layer 3 above induction electrode layer 2 of take is example, and the electrode that can see at Fig. 8 is drive electrode 31, and lead-in wire electrode 8 is connected with a drive electrode 31 respectively, to receive driving voltage.
Lead-in wire electrode 8 can adopt the conductor wire of linear, also can in the 3rd zone that forms lead-in wire electrode 8, be filled with latticed conductive thread, and conductive thread intersects to form grid mutually, and the shape of grid can be regular polygon, also can be for irregularly shaped.
Lead-in wire electrode 8 can be arranged on the surface of substrate 1, or is arranged on the surface of hypothallus 7.The surface that the lead-in wire electrode 8 of take is arranged on hypothallus 7 is example, induction electrode layer 2 also is arranged on the surface of hypothallus 7, with reference to Fig. 9, each induction electrode 21 is connected with a lead-in wire electrode 8, lead-in wire electrode 8 is distributed in the both sides of induction electrode 21, drive electrode 31 is arranged on the top of induction electrode 21, and each drive electrode 31 is connected with a lead-in wire electrode 8, and this part lead-in wire electrode 8 is distributed in the both sides (Fig. 9 does not look out) of drive electrode 31.
Above-mentioned lead-in wire electrode 8 can adopt a kind of the making in Cu, Ag, Ag-C, Al, Ni, Cr and Ni-P, or adopts at least two kinds to make alloy, can print by the method for inkjet printing or exposure imaging, protrude from substrate 1 surface or hypothallus 7 surfaces.The minimum feature of lead-in wire electrode 8 can be (50-200) μ m, can be highly (5-10) μ m.
The nesa coating that the present embodiment provides, form induction electrode layer and drive electrode layer by the form with latticed conductive thread, and the edge at latticed conductive thread is arranged with electrode wires, can solve the higher problem of existing nesa coating cost, and then reduce to adopt the cost of the electronic product that nesa coating makes, the present embodiment provides electrode wires and the conductive thread in nesa coating to adopt common conductive material to get final product, and does not need to adopt expensive indium metal.And at the latticed conductive thread of the inner filling in each first area, can also improve the light transmission rate of nesa coating, can also improve induction sensitivity simultaneously.In addition, adopt hypothallus can increase the adhesion of conductive material, adopt protective seam that drive electrode layer and induction electrode layer are around in to inside, prevent that conductive material is scratched, avoid conducting film damaged.If the lead-in wire electrode that the inside be connected with induction electrode with each drive electrode respectively is provided with latticed conductive thread is set in nesa coating, can further improve the sensitivity of nesa coating.
Embodiment five
The present embodiment provides a kind of implementation of capacitive touch screen; specifically can comprise the transparent panel, nesa coating and the control device that are cascading; transparent panel, for receiving touch operation and realizing conduct charges, can also provide strength support, the protection conductive material.The nesa coating that nesa coating can adopt above-mentioned any embodiment to provide.In nesa coating, the electrode wires of each induction electrode is connected to the signal input part of control device, for when touch operation occurs, produces induction current and is transferred to the zone that control device occurs for identifying touch operation.
The capacitive touch screen that the present embodiment provides, the nesa coating that adopts above-described embodiment to provide, form induction electrode layer and drive electrode layer by the form with latticed conductive thread, and the edge at latticed conductive thread is arranged with electrode wires, can solve the higher problem of existing nesa coating cost, and then reduce to adopt the cost of the electronic product that nesa coating makes, the present embodiment provides electrode wires and the conductive thread in nesa coating to adopt common conductive material to get final product, and does not need to adopt expensive indium metal.And at the latticed conductive thread of the inner filling in each first area, can also improve the light transmission rate of nesa coating, can also improve induction sensitivity simultaneously.In addition, adopt hypothallus can increase the adhesion of conductive material, adopt protective seam that drive electrode layer and induction electrode layer are around in to inside, prevent that conductive material is scratched, avoid conducting film damaged.If the lead-in wire electrode that the inside be connected with induction electrode with each drive electrode respectively is provided with latticed conductive thread is set in nesa coating, can further improve the sensitivity of nesa coating.
On the basis of technique scheme, can also increase the demonstration module, this shows that module is connected with control device, shows module execution display operation for controlling when control device recognizes touch area, to realize touching Presentation Function.
Finally it should be noted that: above each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to aforementioned each embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: its technical scheme that still can put down in writing aforementioned each embodiment is modified, or some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment technical scheme of the utility model.
Claims (12)
1. a nesa coating, is characterized in that, comprises substrate, induction electrode layer and the drive electrode layer of stacked setting;
Described induction electrode layer and/or drive electrode layer comprise at least one first area, are filled with latticed conductive thread in described first area;
The edge of described latticed conductive thread is arranged with electrode wires, and described electrode wires is electrically connected to described latticed conductive thread.
2. nesa coating according to claim 1 is characterized in that:
Arrange along first direction each first area of described induction electrode layer;
Arrange along second direction each first area of described drive electrode layer;
Described induction electrode layer and drive electrode layer also comprise at least one second area, and described second area is connected between adjacent described first area;
Second area in described drive electrode layer is across the second area of crossing in the induction electrode layer, and comprises insulation course between the second area of described induction electrode layer and drive electrode layer.
3. nesa coating according to claim 2, is characterized in that, described first area be shaped as regular polygon, described second area be shaped as linear or the inner regular polygon that is filled with latticed conductive thread.
4. nesa coating according to claim 3, is characterized in that, described drive electrode layer or induction electrode layer are arranged on described substrate surface; Or
Described nesa coating also comprises hypothallus, and described hypothallus is arranged on the surface of described substrate, and described drive electrode layer or induction electrode layer are arranged on the surface of described hypothallus.
5. nesa coating according to claim 4, is characterized in that, described substrate adopts thermoplastic or pet material to make.
6. nesa coating according to claim 4, is characterized in that, described hypothallus adopts ultraviolet cured adhesive, impression glue or makrolon material to make.
7. according to the arbitrary described nesa coating of claim 1-6, it is characterized in that, also comprise: cover the protective clear layer on described drive electrode layer or induction electrode layer.
8. according to the arbitrary described nesa coating of claim 1-6, it is characterized in that, also comprise: the lead-in wire electrode forms in the 3rd zone of described lead-in wire electrode and is filled with latticed conductive thread;
Described lead-in wire electrode is connected with the described electrode wires in the induction electrode layer with described drive electrode layer respectively.
9. nesa coating according to claim 8, is characterized in that, described conductive thread, electrode wires, and/or the lead-in wire electrode adopts at least one in Cu, Ag, Ag-C, Al, Ni, Cr and Ni-P to make.
10. nesa coating according to claim 8, is characterized in that, the grid that described conductive thread forms is regular polygon.
11. nesa coating according to claim 8, is characterized in that, described conductive thread, electrode wires, and/or the lead-in wire electrode adopts the printing of exposure imaging technology to form.
12. a capacitive touch screen, is characterized in that, comprises the transparent panel, nesa coating and the control device that are cascading;
Described nesa coating adopts the described nesa coating of the claims 1-11 any one.
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| CN201320463739.7U CN203376733U (en) | 2013-07-31 | 2013-07-31 | Transparent conducting film and capacitive touch screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104346005A (en) * | 2013-07-31 | 2015-02-11 | 南昌欧菲光科技有限公司 | Transparent electroconductive film and capacitive touch screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104346005A (en) * | 2013-07-31 | 2015-02-11 | 南昌欧菲光科技有限公司 | Transparent electroconductive film and capacitive touch screen |
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