CN102662522B - Prepare the method for flexible touch screen and the equipment of preparation touch control electrode coiled material - Google Patents
Prepare the method for flexible touch screen and the equipment of preparation touch control electrode coiled material Download PDFInfo
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Abstract
The invention provides a kind of equipment preparing the method for flexible touch screen and the touch control electrode coiled material for the preparation of flexible touch screen, with plastic basis material on the surface directly the transparency conductive electrode pattern of printing touch and the electrode cable of the mode of volume to volume at transparent insulation, compare with dry, wet etching manufacturing process with traditional touch-screen gold-tinted processing procedure, the manufacturing procedure of touch-screen simplifies greatly, cost reduces, yield improves, and overcome the bottleneck of processing dimension restriction, large scale flexible touch screen can be prepared, touch-screen in the application of new field and significantly can be promoted.
Description
Technical field
The present invention relates to touch screen technology field, be specifically related to a kind of equipment preparing the method for flexible touch screen and the touch control electrode coiled material for the preparation of flexible touch screen.
Background technology
At present, touch-screen has been the good human-computer interaction interactive tools replacing mouse, but existing conventional touch screen technology mostly is glass baseplate and makes, be only limitted to the application of mobile phone faceplate and industry control small panel, also cannot low cost volume production more than 10 inches touch-screens, more cannot realize the volume production of large scale touch-screen.In current industry, the homogeneity of small-medium size contact panel is serious, and fine ratio of product is low, and the constraint of process technique makes cost remain high.
Traditional touch-screen (such as capacitance touch screen) processing procedure, by the constraint of material and processing procedure, enters development bottleneck.In material, key raw material mostly is ITO (tin indium oxide) plated film and ITO electro-conductive glass, rare because of indium, along with skyrocketing and the protection of country to exotic material of ITO material price, has made ITO be that main touch-screen cost remains high.In processing procedure, existing processing procedure is " sheetbysheet " (" sheet is to sheet ") processing procedure substantially, first prepare electrode pattern with the ito film of film forming and ito glass by gold-tinted processing procedure, dry method or wet etching, unwanted coating moiety need be etched away, like this, conductive material waste is serious.And the problem such as wet etching also exists not environmentally, complex process, yield are low, and the technical threshold of dry etching is high, production efficiency is low, and production equipment is expensive.Nearly 50 multiple working procedures of this processing procedure operation, and the operation of unit platform, manpower requirement amount is large, and yield is low.And the making base material of prior art is nonbreakable glass base material, adds the restriction of above manufacturing method thereof and equipment, also cannot realize large scale volume production, 10 inches low with top panel fine ratio of product, and large size panel is substantially based on heavy expensive Light control touch screen, and development receives restriction greatly.
These situations also impel the research of the equivalent material of material science bound pair ITO material, wherein electrically conducting transparent is maximum research direction, at present the existing research Synthesis and applications comprising the materials such as AZO (Al-Doped ZnO), ATO (antimony tin), Ag nanometer (Nano Silver), CNT (carbon nano-tube), graphene film.
Summary of the invention
Content of the present invention and advantage are partly stated in the following description, or can be apparent from this description, or learn by putting into practice the present invention.
For overcoming the problem of prior art, the invention provides a kind of equipment preparing the method for flexible touch screen and the touch control electrode coiled material for the preparation of flexible touch screen, with plastic basis material on the surface direct printing transparent conducting electrode patterns and the electrode cable of the mode of volume to volume at transparent insulation, with traditional touch-screen gold-tinted processing procedure with dry, wet etching manufacturing process is compared, the manufacturing procedure of touch-screen simplifies greatly, cost reduces, yield improves, and overcome the bottleneck of processing dimension restriction, large scale flexible touch screen can be prepared, touch-screen in the application of new field and significantly can be promoted.
It is as follows that the present invention solves the problems of the technologies described above adopted technical scheme:
According to an aspect of the present invention, provide a kind of method preparing flexible touch screen, it comprises the following steps:
X-direction conductive layer is provided, it is by transparent at least one first transparency conductive electrode pattern of the disposable printing of electrically conductive ink after the plastic basis material volume of the first transparent insulation adopts print on the surface, and the first electrode cable adopting electrically conductive ink positioning overprinting to be formed around this first transparency conductive electrode pattern to be connected with this first transparency conductive electrode pattern and being formed;
Y direction conductive layer is provided, it is by transparent at least one second transparency conductive electrode pattern of the disposable printing of electrically conductive ink after the plastic basis material volume of the second transparent insulation adopts print on the surface, and the second electrode cable adopting electrically conductive ink positioning overprinting to be formed around this second transparency conductive electrode pattern to be connected with this second transparency conductive electrode pattern and being formed;
One of them layer of this X-direction conductive layer and this Y direction conductive layer forms transparent insulation composite bed, and utilizes transparent insulation composite bed that this X-direction conductive layer and this Y direction conductive layer are carried out pattern accurately to locate compound;
Optics pressure-sensitive adhesive coating on bilayer conductive electrode film after compound release film in compound, rolling forms flexible touch control electrode coiled material;
After cutting and cutting, the first electrode cable with the second electrode cable are connected flexible printed circuit board, thus form flexible touch screen.
According to another aspect of the present invention, a kind of method preparing flexible touch screen is provided, comprising the following step:
X-direction conducting surface is provided, its at least one first transparency conductive electrode pattern of the disposable printing of electrically conductive ink adopting print transparent afterwards on the surface by one of them of roll up at the plastic basis material of transparent insulation, and the first electrode cable adopting electrically conductive ink positioning overprinting to be formed around this first transparency conductive electrode pattern to be connected with this first transparency conductive electrode pattern and being formed;
Y direction conducting surface is provided, it is by printing the second transparency conductive electrode pattern of wherein another disposable printing of electrically conductive ink adopting print afterwards transparent on the surface at least one and the first transparency conductive electrode pattern contraposition of plastic basis material volume of transparent insulation of X-direction conducting surface, and the second electrode cable adopting electrically conductive ink positioning overprinting to be formed around this second transparency conductive electrode pattern to be connected with this second transparency conductive electrode pattern and being formed;
One of them formed conducting surface is coated with or adds and covers diaphragm, or coating protective finish;
Optics pressure-sensitive adhesive coating on formed wherein another conducting surface release film in compound, form flexible touch control electrode coiled material, touch control electrode coiled material, after cutting and cutting, the first electrode cable with the second electrode cable is connected flexible printed circuit board, thus forms flexible touch screen.
According to one embodiment of present invention, after this first transparency conductive electrode pattern and this first electrode cable adopt print respectively, transparent electrically conductive ink and opaque electrically conductive ink on-line continuous are completed for printing; And this second transparency conductive electrode pattern and this second electrode cable adopt the rear transparent electrically conductive ink of print and opaque electrically conductive ink on-line continuous to be completed for printing respectively.
According to one embodiment of present invention, electrically conductive ink transparent after this first transparency conductive electrode pattern and this first electrode cable adopt print is disposable to be completed for printing; And this second transparency conductive electrode pattern and this second electrode cable adopt, and the rear transparent electrically conductive ink of print is disposable to be completed for printing.
According to one embodiment of present invention, the plastic basis material volume of this transparent insulation adopts the polyethylene terephthalate plastics of high permeability, low haze.
According to one embodiment of present invention, its surfactivity is improved at this polyethylene terephthalate frosting by the mode of corona or coating precoated shet.
According to one embodiment of present invention, this first transparency conductive electrode pattern and the second transparency conductive electrode pattern adopt volume to volume printing, comprise and adopt the equipment of inkjet printing, gravure, flexo or nano impression to print; This first electrode cable and the second electrode cable adopt volume to volume printing, comprise and adopt the equipment of inkjet printing, gravure, flexo, volume to volume silk-screen or nano impression to print.
According to one embodiment of present invention, electrically conductive ink transparent after the print for transparency conductive electrode pattern adopts nano material, comprises carbon nanotube ink, silver nano ink or organic macromolecule conducting material; Electrically conductive ink for electrode cable adopts nano material, comprises nanometer silver paste, carbon nanotube ink or copper nano ink.
According to one embodiment of present invention, this transparent insulation composite bed adopts gravure or coated optical glue on this X-direction conductive layer or this Y direction conductive layer, or adds and cover the dry glued membrane of optics and formed.
According to a further aspect of the invention, provide a kind of equipment of the touch control electrode coiled material for the preparation of flexible touch screen, comprising:
First printing element group, it is arranged on the transport path of plastic basis material volume of the first transparent insulation, for the formation of X-direction conductive layer, this X-direction conductive layer is by transparent at least one first transparency conductive electrode pattern of the disposable printing of electrically conductive ink after the plastic basis material volume of the first transparent insulation adopts print on the surface, and the first electrode cable adopting electrically conductive ink positioning overprinting to be formed around this first transparency conductive electrode pattern to be connected with this first transparency conductive electrode pattern and being formed;
Second printing element group, it is arranged on the transport path of plastic basis material volume of the second transparent insulation, for the formation of Y direction conductive layer, this Y direction conductive layer is by transparent at least one second transparency conductive electrode pattern of the disposable printing of electrically conductive ink after the plastic basis material volume of the second transparent insulation adopts print on the surface, and the second electrode cable adopting electrically conductive ink positioning overprinting to be formed around this second transparency conductive electrode pattern to be connected with this second transparency conductive electrode pattern and being formed;
Be coated with or add coating device, on one of them layer at this X-direction conductive layer and this Y direction conductive layer, forming transparent insulation composite bed; And for the wherein optics pressure-sensitive adhesive coating of the bilayer conductive electrode film after compound;
Locating composite device, it carries out pattern accurately locate compound for this X-direction conductive layer and this Y direction conductive layer being passed through formed transparent insulation composite bed, forms bilayer conductive electrode coiled material; And for forming touch control electrode coiled material again after compound release film on the bilayer conductive electrode film of optics pressure-sensitive adhesive coating.
According to a further aspect of the invention, provide a kind of equipment of the touch control electrode coiled material for the preparation of flexible touch screen, comprising:
First printing element group, it is arranged on the transport path of plastic basis material volume of transparent insulation, for the formation of X-direction conducting surface, at least one first transparency conductive electrode pattern of the disposable printing of electrically conductive ink that this X-direction conducting surface adopts print transparent afterwards by one of them of roll up at the plastic basis material of transparent insulation on the surface, and the first electrode cable adopting electrically conductive ink positioning overprinting to be formed around this first transparency conductive electrode pattern to be connected with this first transparency conductive electrode pattern and being formed;
Turning device, the plastic basis material of the transparent insulation of conveying overturns by it;
Second printing element group, it is arranged on the transport path of plastic basis material volume of the transparent insulation after upset, for the formation of Y direction conducting surface, this Y direction conducting surface is by printing the second transparency conductive electrode pattern of wherein another disposable printing of electrically conductive ink adopting print afterwards transparent on the surface at least one and the first transparency conductive electrode pattern contraposition of plastic basis material volume of transparent insulation of X-direction conducting surface, and the second electrode cable adopting electrically conductive ink positioning overprinting to be formed around this second transparency conductive electrode pattern to be connected with this second transparency conductive electrode pattern and being formed,
Be coated with or add coating device, it is coated with or adds and covers diaphragm on one of them formed conducting surface, or coating protective finish, optics pressure-sensitive adhesive coating on another conducting surface;
Set composite, its compound release film on the conducting surface of formed wherein another optics pressure-sensitive adhesive coating, forms flexible touch control electrode coiled material.
According to one embodiment of present invention, after this first printing element group adopts print respectively to this first transparency conductive electrode pattern and this first electrode cable, transparent electrically conductive ink and opaque electrically conductive ink on-line continuous are completed for printing; And this second printing element group adopts the rear transparent electrically conductive ink of print and opaque electrically conductive ink on-line continuous to be completed for printing to this second transparency conductive electrode pattern and this second electrode cable respectively.
According to one embodiment of present invention, the electrically conductive ink that this first printing element group is transparent after adopting print to this first transparency conductive electrode pattern and this first electrode cable is disposable to be completed for printing; And this second printing element group adopts this second transparency conductive electrode pattern and this second electrode cable, and the rear transparent electrically conductive ink of print is disposable to be completed for printing.
Touch-screen printing and manufacturing method of the present invention is compared with dry, wet etching processing procedure with the gold-tinted processing procedure of traditional touch-screen, all a revolutionary innovation in materials application and simplification processing procedure, the manufacturing procedure of touch-screen simplifies greatly thus, cost reduces, yield improves, and overcome the bottleneck of processing dimension, large scale flexible touch screen can be prepared, touch-screen in the application of new field and significantly can be promoted.
Specifically, the present invention utilizes flexible parent metal and nanometer technology, the nano material such as carbon nano-tube, Nano Silver or organic macromolecule conducting material can be utilized to prepare conductive pattern in the upper directly printing of optical grade flexible material PET (polyethylene terephthalate), utilize unique " volume to volume " (" rolltoroll ") processing procedure, new large scale flexible touch screen products can be developed.Material aspect, the present invention's application carbon nano-tube, silver nano material or organic macromolecule conducting material directly print according to formulation pattern, electricity, optics, mechanical property and existing ITO material all alternative with the bond strength of PET after carbon nano-tube printing film forming; Owing to adopting unique " volume to volume " processing procedure, the conductive materials such as carbon nano-tube are that printing on demand gets on, and material cost and utilization factor all have great advantage.Processing procedure aspect, " volume to volume " processing procedure that the present invention describes and printing, complex technique and equipment, can make operation simplify, and save material, manpower, production capacity yield significantly promotes.More due to the volume to volume processing procedure of web-like flexible material, sheet and glass restriction can be broken through, make touch-screen flexibility and large scale become possibility.Coordinate following flexible display technologies, provide wide touch application space.
Utilize the present invention, touch-screen size is unrestricted, and its size can more than 10 inches.The application that the present invention is forward-looking, and there is the unsurpassable cost advantage of existing industry technology.In conjunction with following flexible display technologies development trend, have larger application potential.
By reading instructions, those of ordinary skill in the art will understand the characteristic sum aspect of these embodiments and other embodiment better.
Accompanying drawing explanation
Below by with reference to accompanying drawing describe the present invention particularly in conjunction with example, advantage of the present invention and implementation will be more obvious, wherein content shown in accompanying drawing is only for explanation of the present invention, and does not form restriction of going up in all senses of the present invention, in the accompanying drawings:
Fig. 1 is according to first embodiment of the invention, for the preparation of the schematic diagram of the equipment of the touch control electrode coiled material of flexible touch screen;
Fig. 2 is the schematic diagram being compounded to form touch control electrode coiled material according to first embodiment of the invention;
Fig. 3 is the schematic cross-section of touch-screen formed according to first embodiment of the invention;
Fig. 4 is according to second embodiment of the present invention, for the preparation of the schematic diagram of the equipment of the touch control electrode coiled material of flexible touch screen;
The schematic cross-section of the touch-screen that Fig. 5 is formed for second embodiment according to the present invention;
Embodiment
Embodiment one
As illustrated in fig. 1 and 2, the plastic basis material volume of transparent insulation adopts high permeability, PET (polyethylene terephthalate) roll film of low haze, one PET roll film is by unreeling machine 1, tension control apparatus 2, corona equipment (not shown) and draw-gear 3, by printing element A1, the carbon nanotube ink disperseed in advance (can be adopted inkjet printing by predetermined pattern printing, gravure, flexo, the mode of printings such as nano impression) in pet sheet face, print telltale mark simultaneously, then oven for drying is passed through, form the first transparency conductive electrode pattern, through printing element B1, conductive silver paste or copper nano pulp are marked chromatography (inkjet printing, gravure, silk-screen, nano impression) around the first transparency conductive electrode pattern by photocell eye or ccd image sensor 9 track and localization synchronously online again, drying (printing element carries baking oven) or sintering formation first electrode cable, make the first transparency conductive electrode layer (or claiming X-direction conductive layer).Wherein, printing element A1 and printing element B1 forms the first printing element group.
2nd PET roll film is by unreeling machine 5, tension control apparatus 6, corona equipment (not shown) and draw-gear 7, by printing element A2 by the carbon nanotube ink disperseed in advance by predetermined pattern printing (mode of printings such as inkjet printing, gravure, flexo, nano impression can be adopted) in pet sheet face, print telltale mark simultaneously, then by oven for drying, the second transparency conductive electrode pattern is formed; Through printing element B2, conductive silver paste or copper nano pulp are marked chromatography (inkjet printing, gravure, silk-screen, nano impression) around the second transparency conductive electrode pattern by photocell eye or ccd image sensor 13 track and localization synchronously online again, drying or sintering formation second electrode cable, make the second transparency conductive electrode layer (or claiming Y direction conductive layer).Wherein, printing element A2 and printing element B2 forms the second printing element group.
Certainly, first, second transparency conductive electrode layer also can be completed by the independent substep of the first printing element group.
First transparency conductive electrode layer is through apparatus for coating 4 coated optical glue, dry (also can the dry glued membrane of complex optics) through baking oven C and define transparent insulation composite bed, by hi-Fix set composite 8, accurately located be combined with each other (as shown in Figure 2) by telltale mark by photocell eye or ccd image sensor 10,11,12 with the second transparency conductive electrode layer, make flexible double conductive electrode film coiled material through winder 14 rolling.
The flexible double conductive electrode film coiled material of the compound made through the method is at its drive surface transparent release film on optics pressure-sensitive adhesive coating PSA again compound, flexible touch control electrode coiled material is formed through winder rolling, through cutting and cutting, add after flexible printed circuit board FPC is connected with each electrode cable and namely make flexible capacitance touch screen.
Present embodiments provide the method preparing large scale flexible touch screen in the mode of volume to volume, this touch-screen for base material, forms transparent electrode pattern and conducting wire in the mode of printing in pet sheet face with flexible optical level PET.The method is on the surface of web-like flexible parent metal PET, pass through inkjet printing, gravure, the various mode of printing such as flexo or nano impression utilizes carbon nanotube ink to prepare transparency conductive electrode pattern, then ink-jet is passed through with Nano Silver or Nanometer Copper, gravure, flexo, the method of silk-screen or nano impression prepares the conducting wire (or electrode cable) be connected with transparent electrode pattern, make first, second transparency conductive electrode layer, wherein form the insulation glue-line (or transparent insulation composite bed) of optical grade high transparency on the first transparency conductive electrode layer surface by the mode of gravure or coated optical glue or the mode of the dry glued membrane of coating optics, carry out pattern through hi-Fix set composite and the second transparency conductive electrode layer again and locate compound, form flexible double conductive electrode film coiled material, through composite transparent release film, form flexible touch control electrode coiled material, through cutting and cutting, external flexible printed circuit board FPC, form flexible touch screen.
The automation equipments such as volume to volume inkjet printing, gravure, flexo, volume to volume silk-screen, nano impression can be adopted in the present embodiment the transparency conductive electrode pattern (electrically conductive ink transparent after adopting print) of each layer and electrode cable (adopting opaque electrically conductive ink) on-line continuous to be completed for printing, first and second electrode cables can be completed by chromatography nanometer silver paste, also comprise printing and silk-screen copper nano ink sintered through UV.Also electrically conductive ink transparent after the transparency conductive electrode pattern of each layer and electrode cable can being adopted identical print is disposable to be completed for printing.
Electroconductive printing ink transparent after the print of the present embodiment, except carbon nanotube ink, can also adopt other ink, as silver nano ink, organic macromolecule conducting material etc.The hi-Fix set composite of the present embodiment, it is the location compound two volume transparency conductive electrode flexible materials being completed to two-layer transparency conductive electrode patterned layer by high-precision locating and tracking system and tension control apparatus, certain those of ordinary skill in the art can expect adopting other hi-Fix set composite any to realize the compound of two layers of flexible material, and, transparency conductive electrode patterned layer can by product requirement with face to face, back-to-back, face to various structures mode compounds such as the back ofs the body, these methods are all within the scope of the present invention.
As shown in Figure 2, utilize flexible touch control electrode coiled material of the present invention through cutting and cutting, add after flexible printed circuit board FPC is connected with each electrode cable and can form multiple flexible capacitance touch screen.Be illustrated in figure 3 the capacitance touch screen having fitted to the present embodiment face glass being applied to LCDs after tearing release film, it comprises following structure: L1, installation glue-line (or PSA pressure-sensitive adhesive layer); L2, the first pet layer; L3, the transparency conductive electrode pattern that the first pet layer prints and electrode cable; L4, transparent insulation composite bed (or transparent insulation glue-line); L6, the second pet layer; L5, the transparency conductive electrode pattern that the second pet layer prints and electrode cable.Because the present embodiment is flexible touch screen, curved glass panel also can be fitted in after tearing release film for special applications.
Embodiment two
As shown in Figure 4, the plastic basis material volume of transparent insulation adopts high permeability, PET (polyethylene terephthalate) roll film of low haze, PET roll film is by unreeling machine 101, tension control apparatus 102, corona equipment (not shown) and draw-gear 103, by printing element E1 the carbon nanotube ink disperseed in advance printed respectively by predetermined pattern and (volume to volume inkjet printing can be adopted, gravure, flexo, the mode of printings such as nano impression) in the front of PET, print telltale mark simultaneously, then oven for drying is passed through, form the first transparency conductive electrode pattern, through printing element F1, conductive silver paste or copper nano pulp are marked chromatography (volume to volume inkjet printing, gravure, volume to volume silk-screen, nano impression) around the first transparency conductive electrode pattern by photocell eye or ccd image sensor 109 track and localization synchronously online again, through oven for drying or sintering formation first electrode cable, make the first transparency conductive electrode face (or claiming X-direction conducting surface).Wherein, printing element E1 and printing element F1 forms the first printing element group.
Printed the first transparency conductive electrode layer and dry PET film through turning device D, the PET film of conveying is overturn, by printing element E2, the carbon nanotube ink disperseed in advance is followed the tracks of telltale mark on the first transparency conductive electrode layer by photocell eye or ccd image sensor 110 again and print (volume to volume inkjet printing, gravure, flexo, nano impression) in the reverse side of PET and the first transparency conductive electrode pattern contraposition by predetermined pattern chromatography, print telltale mark simultaneously, then by oven for drying, the second transparency conductive electrode pattern is formed; Through printing element F2, conductive silver paste or copper nano pulp are marked chromatography (volume to volume inkjet printing, gravure, volume to volume silk-screen, nano impression) around the second transparent conductive patterns by photocell eye or ccd image sensor 111 track and localization synchronously online again, drying or sintering formation second electrode cable, make the second transparency conductive electrode face (or claiming Y direction conducting surface).Wherein, printing element E2 and printing element F2 forms the second printing element group.
Through apparatus for coating 104 coating film protection on formed one of them conducting surface (sensitive surface), or coating UV stiffened protective finish, also can add and cover transparent protective film protected, form double-sided conductive film volume through winder 115 rolling.
Release film is transported to set composite 108 by unreeling machine 105, tension control apparatus 106 and draw-gear 107; Double-sided conductive film volume again through unreeling machine 101, wherein on another conducting surface (drive surface) again through apparatus for coating 104 optics pressure-sensitive adhesive coating through baking oven G dry and in set composite 108 compound release film, form flexible touch control electrode coiled material.Through cutting and cutting, add after flexible printed circuit board FPC is connected with each electrode cable and namely make flexible capacitance touch screen.
The automation equipments such as volume to volume inkjet printing, gravure, flexo, volume to volume silk-screen, nano impression can be adopted in the present embodiment the transparency conductive electrode pattern (electrically conductive ink transparent after adopting print) of each layer and electrode cable (adopting opaque electrically conductive ink) on-line continuous to be completed for printing, first and second electrode cables can be completed by chromatography nanometer silver paste, also comprise printing and silk-screen copper nano ink sintered through UV.Also electrically conductive ink transparent after the transparency conductive electrode pattern of each layer and electrode cable can being adopted identical print is disposable to be completed for printing.
Electroconductive printing ink transparent after the print of the present embodiment, except carbon nanotube ink, can also adopt other ink, as silver nano ink, organic macromolecule conducting material etc.
Be illustrated in figure 5 the capacitance touch screen having fitted to the present embodiment face glass being applied to LCDs after tearing release film, it comprises following structure: P1, installation glue-line (or PSA pressure-sensitive adhesive layer); P3, pet layer; P2, the transparency conductive electrode pattern printed in pet layer front and electrode cable; P4, at the transparency conductive electrode pattern of pet layer back face printing and electrode cable; P5, protective finish.Because the present embodiment is flexible touch screen, curved glass panel also can be fitted in after tearing release film for special applications.
Above with reference to the accompanying drawings of the preferred embodiments of the present invention, those skilled in the art do not depart from the scope and spirit of the present invention, and multiple flexible program can be had to realize the present invention.For example, to illustrate as the part of an embodiment or the feature that describes can be used for another embodiment to obtain another embodiment.These are only the better feasible embodiment of the present invention, not thereby limit to interest field of the present invention that the equivalence change that all utilizations instructions of the present invention and accompanying drawing content are done all is contained within interest field of the present invention.
Claims (10)
1. prepare a method for flexible touch screen, it is characterized in that comprising the following steps:
X-direction conductive layer is provided, it is by transparent at least one first transparency conductive electrode pattern of the disposable printing of electrically conductive ink after the plastic basis material volume of the first transparent insulation adopts print on the surface, and the first electrode cable adopting electrically conductive ink positioning overprinting to be formed around described first transparency conductive electrode pattern to be connected with described first transparency conductive electrode pattern and being formed;
Y direction conductive layer is provided, it is by transparent at least one second transparency conductive electrode pattern of the disposable printing of electrically conductive ink after the plastic basis material volume of the second transparent insulation adopts print on the surface, and the second electrode cable adopting electrically conductive ink positioning overprinting to be formed around described second transparency conductive electrode pattern to be connected with described second transparency conductive electrode pattern and being formed;
One of them layer of described X-direction conductive layer and described Y direction conductive layer forms transparent insulation composite bed, and utilizes transparent insulation composite bed that described X-direction conductive layer and described Y direction conductive layer are carried out pattern accurately to locate compound;
Optics pressure-sensitive adhesive coating on bilayer conductive electrode film after compound release film in compound, rolling forms flexible touch control electrode coiled material;
After cutting and cutting, described first electrode cable with the second electrode cable are connected flexible printed circuit board, thus form flexible touch screen.
2. prepare a method for flexible touch screen, it is characterized in that comprising the following steps:
X-direction conducting surface is provided, its at least one first transparency conductive electrode pattern of the disposable printing of electrically conductive ink adopting print transparent afterwards on the surface by one of them of roll up at the plastic basis material of transparent insulation, and the first electrode cable adopting electrically conductive ink positioning overprinting to be formed around described first transparency conductive electrode pattern to be connected with described first transparency conductive electrode pattern and being formed;
Y direction conducting surface is provided, it is by printing the second transparency conductive electrode pattern of wherein another disposable printing of electrically conductive ink adopting print afterwards transparent on the surface at least one and the first transparency conductive electrode pattern contraposition of plastic basis material volume of transparent insulation of X-direction conducting surface, and the second electrode cable adopting electrically conductive ink positioning overprinting to be formed around described second transparency conductive electrode pattern to be connected with described second transparency conductive electrode pattern and being formed;
One of them formed conducting surface is coated with or adds and covers diaphragm, or coating protective finish;
Optics pressure-sensitive adhesive coating on formed wherein another conducting surface also, in compound after release film, forms flexible touch control electrode coiled material;
Touch control electrode coiled material, after cutting and cutting, described first electrode cable with the second electrode cable is connected flexible printed circuit board, thus forms flexible touch screen.
3. the method preparing flexible touch screen according to claim 1 and 2, is characterized in that, after described first transparency conductive electrode pattern and described first electrode cable adopt print respectively, transparent electrically conductive ink and opaque electrically conductive ink on-line continuous are completed for printing; And described second transparency conductive electrode pattern and described second electrode cable adopt the rear transparent electrically conductive ink of print and opaque electrically conductive ink on-line continuous to be completed for printing respectively;
Or after described first transparency conductive electrode pattern and described first electrode cable adopt print, transparent electric ink of leading is disposable is completed for printing; And described second transparency conductive electrode pattern and described second electrode cable adopt, and the rear transparent electrically conductive ink of print is disposable to be completed for printing.
4. the method preparing flexible touch screen according to claim 1 and 2, is characterized in that, the plastic basis material volume of described transparent insulation adopts the polyethylene terephthalate plastics of high permeability, low haze.
5. the method preparing flexible touch screen according to claim 1 and 2, it is characterized in that, described first transparency conductive electrode pattern and the second transparency conductive electrode pattern adopt volume to volume printing, comprise and adopt the equipment of inkjet printing, gravure, flexo or nano impression to print; Described first electrode cable and the second electrode cable adopt volume to volume printing, comprise and adopt the equipment of inkjet printing, gravure, flexo, volume to volume silk-screen or nano impression to print.
6. the method preparing flexible touch screen according to claim 1 and 2, it is characterized in that, nano material is adopted for electrically conductive ink transparent after the described print of transparency conductive electrode pattern, comprise carbon nanotube ink, silver nano ink or organic macromolecule conducting material, electrically conductive ink for electrode cable adopts nano material, comprises nanometer silver paste, carbon nanotube ink or copper nano ink.
7. the method preparing flexible touch screen according to claim 1, is characterized in that, described transparent insulation composite bed adopts gravure or coated optical glue on described X-direction conductive layer or described Y direction conductive layer, or adds and cover the dry glued membrane of optics and formed.
8., for the preparation of an equipment for the touch control electrode coiled material of flexible touch screen, it is characterized in that comprising:
First printing element group, it is arranged on the transport path of plastic basis material volume of the first transparent insulation, for the formation of X-direction conductive layer, described X-direction conductive layer is by transparent at least one first transparency conductive electrode pattern of the disposable printing of electrically conductive ink after the plastic basis material volume of the first transparent insulation adopts print on the surface, and the first electrode cable adopting electrically conductive ink positioning overprinting to be formed around described first transparency conductive electrode pattern to be connected with described first transparency conductive electrode pattern and being formed;
Second printing element group, it is arranged on the transport path of plastic basis material volume of the second transparent insulation, for the formation of Y direction conductive layer, described Y direction conductive layer is by transparent at least one second transparency conductive electrode pattern of the disposable printing of electrically conductive ink after the plastic basis material volume of the second transparent insulation adopts print on the surface, and the second electrode cable adopting electrically conductive ink positioning overprinting to be formed around described second transparency conductive electrode pattern to be connected with described second transparency conductive electrode pattern and being formed;
Be coated with or add coating device, on one of them layer at described X-direction conductive layer and described Y direction conductive layer, forming transparent insulation composite bed; And for the wherein optics pressure-sensitive adhesive coating of the bilayer conductive electrode film after compound;
Locating composite device, carries out pattern accurately locate compound for described X-direction conductive layer and described Y direction conductive layer being passed through formed transparent insulation composite bed, forms bilayer conductive electrode coiled material; And on the bilayer conductive electrode film of the pressure-sensitive adhesive coating of optics after compound, compound forms flexible touch control electrode coiled material after release film again.
9., for the preparation of an equipment for the touch control electrode coiled material of flexible touch screen, it is characterized in that comprising:
First printing element group, it is arranged on the transport path of plastic basis material volume of transparent insulation, for the formation of X-direction conducting surface, at least one first transparency conductive electrode pattern of the disposable printing of electrically conductive ink that described X-direction conducting surface adopts print transparent afterwards by one of them of roll up at the plastic basis material of transparent insulation on the surface, and the first electrode cable adopting electrically conductive ink positioning overprinting to be formed around described first transparency conductive electrode pattern to be connected with described first transparency conductive electrode pattern and being formed;
Turning device, the plastic basis material of carried transparent insulation overturns by it;
Second printing element group, it is arranged on the transport path of plastic basis material volume of the transparent insulation after upset, for the formation of Y direction conducting surface, described Y direction conducting surface is by printing the second transparency conductive electrode pattern of wherein another disposable printing of electrically conductive ink adopting print afterwards transparent on the surface at least one and the first transparency conductive electrode pattern contraposition of plastic basis material volume of transparent insulation of X-direction conducting surface, and the second electrode cable adopting electrically conductive ink positioning overprinting to be formed around described second transparency conductive electrode pattern to be connected with described second transparency conductive electrode pattern and being formed,
Be coated with or add coating device, it is coated with or adds and covers diaphragm on one of them formed conducting surface, or coating protective finish, optics pressure-sensitive adhesive coating on another conducting surface;
Set composite, it in compound after release film, forms flexible touch control electrode coiled material on the conducting surface of formed wherein another optics pressure-sensitive adhesive coating.
10. the equipment of the touch control electrode coiled material for the preparation of flexible touch screen according to claim 8 or claim 9, it is characterized in that, after described first printing element group adopts print respectively to described first transparency conductive electrode pattern and described first electrode cable, transparent electrically conductive ink and opaque electrically conductive ink on-line continuous are completed for printing; And described second printing element group adopts the rear transparent electrically conductive ink of print and opaque electrically conductive ink on-line continuous to be completed for printing to described second transparency conductive electrode pattern and described second electrode cable respectively;
Or described first printing element group is completed for printing electrically conductive ink transparent after described first transparency conductive electrode pattern and described first electrode cable employing print is disposable; And described second printing element group adopts described second transparency conductive electrode pattern and described second electrode cable, and the rear transparent electrically conductive ink of print is disposable to be completed for printing.
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