CN102968233A - Capacitive touch screen with metal wire grid array - Google Patents
Capacitive touch screen with metal wire grid array Download PDFInfo
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- CN102968233A CN102968233A CN201210489752XA CN201210489752A CN102968233A CN 102968233 A CN102968233 A CN 102968233A CN 201210489752X A CN201210489752X A CN 201210489752XA CN 201210489752 A CN201210489752 A CN 201210489752A CN 102968233 A CN102968233 A CN 102968233A
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- Prior art keywords
- wire grating
- grating array
- wire
- touch screen
- metal wire
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 31
- 239000002184 metal Substances 0.000 title claims abstract description 31
- 230000006698 induction Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 21
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 17
- 239000011521 glass Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 108010010803 Gelatin Proteins 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229920000159 gelatin Polymers 0.000 claims description 3
- 239000008273 gelatin Substances 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 235000011852 gelatine desserts Nutrition 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000005368 silicate glass Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000005361 soda-lime glass Substances 0.000 claims description 3
- 238000001771 vacuum deposition Methods 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 abstract 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 abstract 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 23
- 230000001939 inductive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- -1 tin indium oxide compound Chemical class 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The invention relates to a capacitive touch screen and belongs to the technical field of electronic equipment. The touch screen comprises a panel, an optical transparent adhesive tape and a metal wire grid array induction layer which are stacked from top down in sequence, wherein the metal wire grid array induction layer comprises a base material, a metal wire grid array on the surface of the base material, and a metal lead wire connected with the metal wire grid array. According to the capacitive touch screen, the resistance value can be very small due to the adoption of the metal wire grid array, so that the touch response speed is high, the touch screen is not limited in size, and the cost is far lower than that of ITO (Indium Tin Oxide) at the same time. The capacitive touch screen can be also applied to various touch screen requirement environments.
Description
Technical field
The present invention relates to a kind of capacitive touch screen, belong to technical field of electronic equipment.
Background technology
Touch-screen is a kind of remarkable input equipment that improves man machine operation interface, have intuitively, simply, advantage efficiently.Touch-screen obtains a wide range of applications in many electronic products, such as mobile phone, PDA, multimedia, public information inquiry system etc.Touch-screen mainly contains following four classes, comprises resistance-type, condenser type, infrared and surface acoustic wave touch screen.Wherein, capacitive touch screen is owing to have excellent performance, such as, there is not the mechanical motion wear problem in the screen, even and simple in structure, transmittance is high, the linearity good, dustproof, fire prevention, scratch resistantly also have a stable performance etc. in worst environment, has become the main flow in market.And the sharpest edges of capacitive touch screen are that it has the multi-point touch function, have greatly improved operating characteristic and the result of use of electronic product.
At present, capacitive touch screen all is all based on tin indium oxide compound (In
2O
3: SnO
2, be called for short ITO) and material and carrying out.Because indium metal (In) is a kind of scarce resource, and its square resistance can not be accomplished very low, has affected the development of touch-screen, and industry is all in the equivalent material of making great efforts the development of new electrically conducting transparent, such as, ZnO:Al, Nano Silver, carbon nano-tube etc.For the touch-screen that uses these design of materials, all not having can the actual volume production that enters, especially capacitive touch screen industry.Therefore, need the capacitive touch screen technology that a kind of performance is better, cost is lower, unrestricted.
Summary of the invention
In view of above problem and demand, the object of the invention is to provide the wire grating array capacitor formula touch-screen that a kind of performance is better, cost is lower.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of wire grating array capacitor formula touch-screen, successively by panel, optical lens gelatin, stacking the forming of wire grating array induction layer, wire grating array induction layer comprises the wire grating array of base material, substrate surface, the plain conductor of connection metal wire grid array to this touch-screen from top to bottom.
Its material of described panel is chemically reinforced glass or plastics.
Described panel lower surface exists decorative ink or vacuum coating.
Described wire grating array induction layer is one deck or two-layer stacking composition.
The base material of described wire grating array induction layer is glass or plastics.
Described glass is soda-lime glass or alumina silicate glass, and described plastics are the transparent body or multilayer composite.
The wire grating of described wire grating array induction layer and the plain conductor material of connection can be Ag, Au, Cu or Al.
Described wire grating array induction layer wire grating is straight line or wave, the metal wire live width is 10 μ m and following, metal wire distance between any two is 50 ~ 1000um, metal wire has insulation filler between any two, and area surfaces has insulation course between array of metal lines surface and the array of metal lines.
Beneficial effect of the present invention:
This capacitive touch screen, because be to adopt the wire grating array, resistance can be very low, and therefore, its touch-responsive speed is fast, and the size of touch-screen is unrestricted, and cost can also apply to the touch-screen demand environment of each generic category well below ITO simultaneously.
Description of drawings
Fig. 1 is double-deck wire grating array capacitor formula touch-screen diagrammatic cross-section.
Fig. 2 is the synoptic diagram for double layer of metal wire grid array inductive layer (3).
Fig. 3 is the diagrammatic cross-section of A-A ' among Fig. 2.
Fig. 4 is the wire grating array capacitor formula touch-screen diagrammatic cross-section for single layer structure.
Fig. 5 is the synoptic diagram for single-layer metal wire grid array inductive layer (3).
Embodiment
In order to be described in detail the These characteristics of patent of the present invention, advantage and principle of work, the present invention is described further below in conjunction with specification drawings and specific embodiments, but the scope that the present invention protects is not limited to this.
A wire grating array capacitor formula touch-screen of the present invention is by panel 1, optical lens gelatin 2 and wire grating array induction layer 3 stacking forming.Fig. 1 is that double-deck wire grating array capacitor formula touch-screen according to the present invention is implemented example schematic, as an illustration.What need to replenish is that capacitive touch screen is also to comprise control chip and flexible circuit board, but in this patent, in order to illustrate, these two parts is omitted.Fig. 1 is double-deck wire grating array capacitor formula touch-screen diagrammatic cross-section, and Fig. 2 is the synoptic diagram of double layer of metal wire grid array inductive layer 3.Panel 1, its material can be chemically reinforced glass, also can be plastics, and panel 1 lower surface exists decorative ink or vacuum coating.Wire grating array induction layer 3 comprises the wire grating array 5 on base material 4, base material 4 surfaces, and the plain conductor 6 of connection metal wire grid array forms.Wire grating array induction layer 3 can be one deck or two-layer stacking composition.Fig. 1 is to be exactly the two-layer composition of embodiments of the present invention.The base material 4 of wire grating array induction layer 3 is glass or plastics, glass is soda-lime glass or alumina silicate glass, it can be that not having chemical enhanced also can be chemical enhanced processing, and plastics are the transparent body or the multilayer composites such as polycarbonate, polyethylene terephthalate (being called for short PET).The wire grating array 5 of wire grating array induction layer 3 and plain conductor 6 materials that connect can be the metals such as Ag, Au, Cu, Al.The wire grating on wire grating array induction layer 3 surface can straight line, also can be wave.In enforcement example of the present invention, all be that straight line represents, actual can be wave.The lines live width of wire grating is that the metal wire live width is 10 μ m and following, height is according to the resistance adjustment, the distance of metal etween the lines is 50 ~ 1000um, the metal etween the lines can have insulation filler 7, and area surfaces can have insulation filler 7 between array of metal lines surface and the array of metal lines.Fig. 3 is the diagrammatic cross-section of A-A ' among Fig. 2, can find out the insulation filler 7 between base material 4 and the wire grating array 5.
Fig. 4 is that single layer structure wire grating array capacitor formula touch-screen of the present invention is implemented example schematic.This capacitive touch screen is to be made of layer of metal wire grid array inductive layer 3, and base material 4 only has single face to have wire grating array 5 and the plain conductor 6 that is connected.Stacked structure as shown in Figure 4.Fig. 5 is the front elevation of wire grating array induction layer 3.Dotted line among Fig. 5 is not in esse just for the effect that interrupts that wire grating array 5 is described increases.
From top enforcement example as can be known, wire grating array 5 all is the mode that adopts plain conductor, substituted ITO, resistance can be very low, therefore, its touch-responsive speed is fast, and the size of touch-screen is unrestricted, cost can also apply to the touch-screen demand environment of each generic category well below ITO simultaneously.
The above embodiment has only expressed a kind of embodiment of this patent, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to this patent scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from this patent design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of this patent should be as the criterion with claims.
Claims (8)
1. wire grating array capacitor formula touch-screen, it is characterized in that: this touch-screen is from top to bottom successively by panel (1), optical lens gelatin (2), stacking the forming of wire grating array induction layer (3), and wire grating array induction layer (3) comprises base material (4), the wire grating array (5) on base material (4) surface, the plain conductor (6) of connection metal wire grid array.
2. wire grating array capacitor formula touch-screen according to claim 1, it is characterized in that: its material of described panel (1) is chemically reinforced glass or plastics.
3. wire grating array capacitor formula touch-screen according to claim 1, it is characterized in that: described panel (1) lower surface exists decorative ink or vacuum coating.
4. wire grating array capacitor formula touch-screen according to claim 1, it is characterized in that: described wire grating array induction layer (3) is one deck or two-layer stacking composition.
5. wire grating array capacitor formula touch-screen according to claim 1, it is characterized in that: the base material of described wire grating array induction layer (3) is glass or plastics.
6. wire grating array capacitor formula touch-screen according to claim 5, it is characterized in that: described glass is soda-lime glass or alumina silicate glass, described plastics are the transparent body or multilayer composite.
7. wire grating array capacitor formula touch-screen according to claim 1, it is characterized in that: the wire grating of described wire grating array induction layer (3) and the plain conductor material of connection can be Ag, Au, Cu or Al.
8. wire grating array capacitor formula touch-screen according to claim 1, it is characterized in that: described wire grating array induction layer (3) wire grating is straight line or wave, the metal wire live width is 10 μ m and following, metal wire distance between any two is 50 ~ 1000um, metal wire has insulation filler (7) between any two, area surfaces has insulation course between array of metal lines surface and the array of metal lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210489752XA CN102968233A (en) | 2012-11-27 | 2012-11-27 | Capacitive touch screen with metal wire grid array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210489752XA CN102968233A (en) | 2012-11-27 | 2012-11-27 | Capacitive touch screen with metal wire grid array |
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| Publication Number | Publication Date |
|---|---|
| CN102968233A true CN102968233A (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210489752XA Pending CN102968233A (en) | 2012-11-27 | 2012-11-27 | Capacitive touch screen with metal wire grid array |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219069A (en) * | 2013-03-30 | 2013-07-24 | 深圳欧菲光科技股份有限公司 | Conducting film and preparation method thereof, and touch screen comprising conducting film |
| CN104714705A (en) * | 2013-12-17 | 2015-06-17 | 杰圣科技股份有限公司 | Touch control structure and manufacturing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349960A (en) * | 2007-07-16 | 2009-01-21 | 张玉辉 | touch panel device |
| CN102053752A (en) * | 2009-10-29 | 2011-05-11 | 爱特梅尔公司 | Redundant touchscreen electrodes |
| CN201837985U (en) * | 2010-09-26 | 2011-05-18 | 深圳宝明精工有限公司 | Dual-sided straight strip-shaped capacitive touch screen |
| CN202306518U (en) * | 2011-09-13 | 2012-07-04 | 宏科有限公司 | Capacitive touch screen |
| JP2012138017A (en) * | 2010-12-27 | 2012-07-19 | Dainippon Printing Co Ltd | Touch panel and display device having touch panel |
| CN202939587U (en) * | 2012-11-27 | 2013-05-15 | 南昌欧菲光科技有限公司 | Metal wire grating array capacitive touch screen |
-
2012
- 2012-11-27 CN CN201210489752XA patent/CN102968233A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349960A (en) * | 2007-07-16 | 2009-01-21 | 张玉辉 | touch panel device |
| CN102053752A (en) * | 2009-10-29 | 2011-05-11 | 爱特梅尔公司 | Redundant touchscreen electrodes |
| CN201837985U (en) * | 2010-09-26 | 2011-05-18 | 深圳宝明精工有限公司 | Dual-sided straight strip-shaped capacitive touch screen |
| JP2012138017A (en) * | 2010-12-27 | 2012-07-19 | Dainippon Printing Co Ltd | Touch panel and display device having touch panel |
| CN202306518U (en) * | 2011-09-13 | 2012-07-04 | 宏科有限公司 | Capacitive touch screen |
| CN202939587U (en) * | 2012-11-27 | 2013-05-15 | 南昌欧菲光科技有限公司 | Metal wire grating array capacitive touch screen |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219069A (en) * | 2013-03-30 | 2013-07-24 | 深圳欧菲光科技股份有限公司 | Conducting film and preparation method thereof, and touch screen comprising conducting film |
| CN103219069B (en) * | 2013-03-30 | 2015-04-08 | 深圳欧菲光科技股份有限公司 | Conducting film and preparation method thereof, and touch screen comprising conducting film |
| CN104714705A (en) * | 2013-12-17 | 2015-06-17 | 杰圣科技股份有限公司 | Touch control structure and manufacturing method thereof |
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|---|---|---|---|
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130313 |
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| RJ01 | Rejection of invention patent application after publication |