CN102819335A - Production method of touch panels - Google Patents
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- CN102819335A CN102819335A CN2011101540639A CN201110154063A CN102819335A CN 102819335 A CN102819335 A CN 102819335A CN 2011101540639 A CN2011101540639 A CN 2011101540639A CN 201110154063 A CN201110154063 A CN 201110154063A CN 102819335 A CN102819335 A CN 102819335A
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Abstract
The invention relates to a production method of touch panels. The production method includes the steps of providing an insulating substrate with a plurality of target areas on a surface; forming an adhesive layer on the surface of the insulating substrate; solidifying the adhesive layer in the wiring areas; forming a carbon nanotube layer on the surface of the adhesive layer; solidifying the adhesive layer in each touch area to fix the carbon nanotube layer in the touch area; removing the carbon nanotube layer in the wiring areas to obtain a plurality of spaced transparent conducive layers; forming an electrode and a conductive circuit in the wiring area of each target area; and cutting to obtain a plurality of touch panels, wherein each target area includes one touch area and one wiring area.
Description
Technical field
The present invention relates to a kind of preparation method of touch panel, relate in particular to a kind of preparation method of the touch panel based on CNT.
Background technology
In recent years, be accompanied by the high performance and the diversified development of various electronic equipments such as mobile phone and touch navigation system, the electronic equipment that the touch-screen of light transmission is installed in the front of display devices such as liquid crystal progressively increases.The user of such electronic equipment is through touch-screen, on one side the displaying contents of the display device that is positioned at the touch-screen back side is carried out visual confirmation, utilize finger or pointer etc. to push touch-screen on one side and operate.Thus, various functions that can operating electronic equipment.
Different according to the principle of work of touch-screen and transmission medium, existing touch-screen is divided into four types, is respectively resistance-type, condenser type, infrared-type and surface acoustic wave type.Wherein the application of capacitive touch screen and resistive touch screen is more extensive.
Condenser type of the prior art and resistive touch screen generally include at least one indium tin oxide layer as transparency conducting layer (ITO layer).Yet the ITO layer adopts prepared such as ion beam sputtering or vapor deposition usually as transparency conducting layer, in the process of preparation, needs higher vacuum environment and need be heated to 200 ℃ ~ 300 ℃, therefore, makes that the preparation cost of ITO layer is higher.In addition, the method for removing part ITO layer is generally laser ablation, and this method not only preparation cost is higher, and preparation efficiency is lower.
Summary of the invention
In view of this, necessaryly provide a kind of preparation cost low, and the preparation method of the high touch panel of efficient.
A kind of preparation method of touch panel, this method may further comprise the steps: a dielectric base is provided, and a plurality of target areas are set on a surface of this dielectric base, and each target area comprises a touch area and cabling zone; On the said surface of this dielectric base, form an adhesive-layer; Solidify the adhesive-layer that is positioned at the cabling zone; Form a carbon nanotube layer on the adhesive-layer surface; Solidify the adhesive-layer that is positioned at the touch area, fix with the carbon nanotube layer that will be positioned at the touch area; Removal is positioned at the carbon nanotube layer in cabling zone, obtains the transparency conducting layer that a plurality of intervals are provided with; Cabling zone in each target area forms electrode and conducting wire; And cutting obtains a plurality of touch panels.
A kind of preparation method of touch panel, this method may further comprise the steps: a dielectric base is provided, and a plurality of target areas are set on a surface of this dielectric base, and each target area comprises a touch area and cabling zone; On the said surface of this dielectric base, form an adhesive-layer; Solidify the adhesive-layer that is positioned at the cabling zone; Form a carbon nanotube layer on the adhesive-layer surface; Solidify the adhesive-layer that is positioned at the touch area, fix with the carbon nanotube layer that will be positioned at the touch area; Cabling zone in each target area forms electrode and conducting wire; Removal is positioned at the carbon nanotube layer in cabling zone; And cutting obtains a plurality of touch panels.
Compared with prior art; The touch-screen that the embodiment of the invention provides has the following advantages: first; Make the adhesive-layer that is positioned at the cabling zone solidify earlier, the back forms carbon nanotube layer, greatly reduces the difficulty of the carbon nanotube layer of removing the cabling zone; Thereby reduced preparation cost, improved preparation efficiency; The second, through big plate processing procedure, once prepare a plurality of touch panels, simplified technological process, reduced preparation cost, improved preparation efficiency.
Description of drawings
Preparation technology's process flow diagram of the touch panel that Fig. 1 provides for the embodiment of the invention.
Fig. 2 is the vertical view of step 1 of the process chart of Fig. 1.
Fig. 3 is the vertical view of step 2 of the process chart of Fig. 1.
Fig. 4 is the vertical view after the step 3 of the process chart of Fig. 1 is removed mask.
Fig. 5 is the vertical view of step 4 of the process chart of Fig. 1.
Fig. 6 is the vertical view of step 6 of the process chart of Fig. 1.
Fig. 7 is the vertical view of step 7 of the process chart of Fig. 1.
Fig. 8 is the stereoscan photograph of the carbon nano-tube film of embodiment of the invention employing.
The main element symbol description
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| Adhesive- |
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| Transparency conducting |
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| Electrode | 16 |
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| The conducting |
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Following embodiment will combine above-mentioned accompanying drawing to further specify the present invention.
Embodiment
To combine accompanying drawing and specific embodiment below, the preparation method of touch panel provided by the invention will be done further detailed description.
See also Fig. 1 to 7, the embodiment of the invention provides a kind of preparation method of touch panel 10, and it may further comprise the steps:
Step 1 provides a dielectric base 12, and a surface of this dielectric base 12 comprises a plurality of target areas 120, and a touch area 124 and cabling zone 122 are set in each target area 120.
Said dielectric base 12 is the structure of a curved face type or plane.This dielectric base 12 has suitable transparency, and mainly plays a part to support.This dielectric base 12 is formed by hard materials such as glass, quartz, adamas or plastics or flexible material.Particularly; Said flexible material may be selected to be polycarbonate (PC), polymethylmethacrylate (PMMA), tygon (PE), polyimide (PI) or polyethylene terephthalate polyester materials such as (PET), or materials such as polyethersulfone (PES), cellulose esters, PVC (PVC), benzocyclobutene (BCB) or acryl resin.In the present embodiment, said dielectric base 12 is the structure of a plane, and this dielectric base 12 is flexible material PET.Be appreciated that the material that forms said dielectric base 12 is not limited to the above-mentioned material of enumerating,, and have suitable transparency and get final product as long as can make dielectric base 12 play the effect of support.
Please further consult Fig. 2, the shape of said a plurality of target areas 120 and size can be selected according to actual needs.In the present embodiment, dielectric base 12 is divided into the identical target area 120 of 9 parts of sizes of 3 row, 3 row.Said touch area 124 is the zone that can be realized touch controllable function by touching, and said cabling zone 122 is for being provided with the zone of conducting wire 18 and electrode 16.Said cabling zone 122 is 120 submarginal zones than small size, target area, and it can be positioned at least one side of touch area 124.Said touch area 124 is the larger area zone that comprises the central area of target area 120.Said cabling zone 122 is usually located at the periphery of said touch area 124.Said touch area 124 is not limit with the position relation in cabling zone 122, can select as required.In the present embodiment, said touch area 124 is the central area of dielectric base 12, and said cabling zone 122 is around touch area 124.Identical and the area of the shape of the shape of said touch area 124 and target area 120 is less than the area of target area 120, and said cabling zone 122 be other zone in addition, touch area 124.
Step 2 forms an adhesive-layer 13 on the said surface of said dielectric base 12.
Said adhesive-layer 13 is transparent.The material of said adhesive-layer 13 is not limit, so long as can realize under certain condition local solidification viscose glue can, like thermoplastic, hot-setting adhesive or UV glue etc.The thickness of said adhesive-layer 13 is 1 nanometer ~ 500 micron; Preferably, the thickness of said adhesive-layer 13 is 1 micron ~ 2 microns.The method of said formation one adhesive-layer 13 can be spin-coating method, spraying process, brushing etc.In the present embodiment, said adhesive-layer 13 is that a thickness is about 1.5 microns UV glue-line, and it is formed at PET film one surface through the method that applies.
Step 3 is solidified the adhesive-layer 13 that is positioned at cabling zone 122 in each target area 120.
The method of adhesive-layer 13 that is positioned at cabling zone 122 in each target area 120 of said curing is relevant with the material of adhesive-layer 13.Said thermoplastic can pass through local cooling curing, and said hot-setting adhesive can solidify through spot heating, and said UV glue can solidify through local ultraviolet lighting.
In the present embodiment, the method that said curing is positioned at the adhesive-layer 13 in cabling zone 122 may further comprise the steps:
At first, through a mask 15 the UV glue-line that is positioned at touch area 124 in each target area 120 is blocked;
Secondly, adopt in ultraviolet light 17 each target area 120 of irradiation to be positioned at the UV glue-line in cabling zone 122, so that be positioned at the UV curable adhesive layer in cabling zone 122;
Then, remove mask 15.
The said mask 15 unsettled surfaces that are arranged at said adhesive-layer 13 away from dielectric base 12.The time of said ultraviolet light 17 irradiations is 2 seconds ~ 30 seconds.In the present embodiment, the time of said ultraviolet light 17 irradiations is 4 seconds.Because masked 15 block, the part that said adhesive-layer 13 is positioned at touch area 124 can not shone by ultraviolet light 17.And adhesive-layer 13 is positioned at the part in cabling zone 122 and can be shone by ultraviolet light 17.Because said adhesive-layer 13 is a UV glue-line, so through after ultraviolet light 17 irradiations, the adhesive-layer 13 that is positioned at cabling zone 122 solidifies.
Step 4 forms a carbon nanotube layer 19 on adhesive-layer 13 surfaces.
Said carbon nanotube layer 19 is made up of some CNTs, and the bearing of trend of most of CNTs is basically parallel to the surface of this carbon nanotube layer 19 in this carbon nanotube layer 19.The thickness of said carbon nanotube layer 19 is not limit, and can select as required; The thickness of said carbon nanotube layer 19 is 0.5 nanometer ~ 100 micron; Preferably, the thickness of this carbon nanotube layer 19 is 100 nanometers ~ 200 nanometers.Because the even carbon nanotube in the said carbon nanotube layer 19 distributes and has good flexible, makes this carbon nanotube layer 19 have good flexible, can bending fold become arbitrary shape and be difficult for breaking.
CNT in the said carbon nanotube layer 19 comprises one or more in SWCN, double-walled carbon nano-tube and the multi-walled carbon nano-tubes.The diameter of said SWCN is 0.5 nanometer ~ 50 nanometers, and the diameter of double-walled carbon nano-tube is 1.0 nanometers ~ 50 nanometers, and the diameter of multi-walled carbon nano-tubes is 1.5 nanometers ~ 50 nanometers.The length of said CNT is greater than 50 microns.Preferably, the length of this CNT is preferably 200 microns ~ 900 microns.
Unordered or the orderly arrangement of CNT in the said carbon nanotube layer 19.So-called lack of alignment is meant that the orientation of CNT is random.The so-called arrangement in order is meant that the orientation of CNT is regular.Particularly, when carbon nanotube layer 19 comprised the CNT of lack of alignment, CNT twined each other or isotropy is arranged; When carbon nanotube layer 19 comprised orderly carbon nanotubes arranged, CNT was arranged of preferred orient along a direction or a plurality of directions.So-called " preferred orientation " is meant that the most of CNTs in the said carbon nanotube layer 19 have bigger orientation probability on a direction or several direction; That is, the axially basic of the most of CNTs in this carbon nanotube layer 19 extended along same direction or several direction.Have the gap between the adjacent CNT among the said carbon nanotube layer 19, thereby in carbon nanotube layer 19, form a plurality of gaps.
Said carbon nanotube layer 19 comprises at least one carbon nano-tube film.When said carbon nanotube layer 19 comprised a plurality of carbon nano-tube film, this carbon nano-tube film can be provided with or range upon range of setting by substantially parallel no gap coplane.See also Fig. 8, the self supporting structure that said carbon nano-tube film is made up of some CNTs.Said some CNTs are arranged of preferred orient along same direction.The whole bearing of trend of most of CNTs basically in the same direction in this carbon nano-tube film.And the whole bearing of trend of said most of CNTs is basically parallel to the surface of carbon nano-tube film.Further, most CNTs are to join end to end through Van der Waals (Van Der Waals) power in the said carbon nano-tube film.Particularly, each CNT joins end to end through Van der Waals force with adjacent CNT on bearing of trend in the most of CNTs that extend basically in the same direction in the said carbon nano-tube film.Certainly, have the CNT of minority random alignment in the said carbon nano-tube film, these CNTs can not arranged the overall orientation of most of CNTs in the carbon nano-tube film and constitute obviously influence.Said carbon nano-tube film does not need large-area supported; And as long as the relative both sides power of providing support can be unsettled on the whole and keep self membranaceous state; When being about to this carbon nano-tube film and placing on two supporters that (or being fixed in) be provided with at interval, the carbon nano-tube film between two supporters can the membranaceous state of unsettled maintenance self.
Particularly, the most CNTs that extend basically in the same direction in the said carbon nano-tube film, and nisi linearity, bending that can be suitable; Perhaps be not fully according to arranging on the bearing of trend, can be suitable depart from bearing of trend.Therefore, can not get rid of between the CNT arranged side by side in the most CNTs that extend basically in the same direction of carbon nano-tube film and possibly have the part contact.
Particularly, said carbon nano-tube film comprise a plurality of continuously and the CNT fragment that aligns.These a plurality of CNT fragments join end to end through Van der Waals force.Each CNT fragment comprises a plurality of CNTs that are parallel to each other, and these a plurality of CNTs that are parallel to each other are combined closely through Van der Waals force.This CNT fragment has length, thickness, homogeneity and shape arbitrarily.CNT in this carbon nano-tube film is arranged of preferred orient along same direction.
Said carbon nano-tube film can be through directly pulling acquisition from carbon nano pipe array.Be appreciated that through a plurality of carbon nano-tube films are parallel and do not have that the gap coplane is laid or/and range upon range of laying, can prepare the carbon nanotube layer 19 of different area and thickness.The thickness of each carbon nano-tube film can be 0.5 nanometer ~ 100 micron.When carbon nanotube layer 19 comprised the carbon nano-tube film of a plurality of range upon range of settings, the orientation of the CNT in the adjacent carbon nano-tube film formed an angle, 0≤α≤90.
Said carbon nano-tube film can be through directly pulling acquisition from carbon nano pipe array.Particularly, at first on the substrate of quartz or wafer or other material, grow carbon nano pipe array, for example use chemical gaseous phase Shen to amass (Chemical Vapor Deposition, CVD) method; Then, with stretching technique CNT is pulled out from carbon nano pipe array one by one and formed.These CNTs are able to by Van der Waals force join end to end, and form the conductive elongate structure that tool certain orientation property and almost parallel are arranged.Formed carbon nano-tube film can be in the minimum electrical impedance of the direction tool that stretches, and perpendicular to the maximum electrical impedance of draw direction tool, thereby possess electrical impedance anisotropy.
Said carbon nanotube layer 19 can be formed at adhesive-layer 13 surfaces through methods such as printing, deposition or direct layings.In the present embodiment, said carbon nanotube layer 19 is one to have the carbon nano-tube film of self-supporting effect, and it can directly be layed in whole adhesive-layer 13 surfaces.Be appreciated that owing to, once prepare a plurality of touch panels 10, so the width of the single carbon nano-tube film of from carbon nano pipe array, pulling out maybe be less than the width of adhesive-layer 13 through big plate processing procedure.Therefore, also can the parallel no gap of a plurality of carbon nano-tube films be provided with to be combined into a carbon nanotube layer 19 that area is bigger.Preferably, the splicing line of adjacent two carbon nano-tube films is overlapped with the middle cut line of adjacent two row or two row target areas 120.
After carbon nanotube layer 19 is formed at adhesive-layer 13 surfaces; Because being positioned at the part in cabling zone 122, adhesive-layer 13 has cured; Only be formed at adhesive-layer 13 surfaces so be positioned at the carbon nanotube layer 19 in cabling zone 122, and combine with the adhesive-layer 13 of curing through Van der Waals force.Therefore, the said carbon nanotube layer 19 that is positioned at cabling zone 122 is fainter with the adhesion of adhesive-layer 13.Because it is still uncured that adhesive-layer 13 is positioned at the part of touch area 124, can partly or entirely soak into adhesive-layer 13 so be arranged in 19 of the carbon nanotube layers of touch area 124, and combine with adhesive-layer 13 through cohesive force.Therefore, the said carbon nanotube layer that is positioned at touch area 124 19 is more firm with the adhesion of adhesive-layer 13.Preferably, the said CNT that is arranged in the carbon nanotube layer 19 of touch area 124 partly soaks into adhesive-layer 13, and part is exposed to outside the adhesive-layer 13.
Further, soak into adhesive-layer 13, can also comprise the step of this carbon nanotube layer 19 of extruding in order to make the carbon nanotube layer 19 that is arranged in touch area 124.In the present embodiment, adopt a PET film to be layed in carbon nanotube layer 19 surfaces, this carbon nanotube layer 19 of extruding gently.
Step 5 is solidified the adhesive-layer 13 that is positioned at touch area 124, and is fixing with the carbon nanotube layer 19 that will be positioned at touch area 124.
The method of adhesive-layer 13 that said curing is positioned at touch area 124 is identical with step 3, need select according to the material of adhesive-layer 13.Soak into adhesive-layer 13 owing to be arranged in the carbon nanotube layer 19 of touch area 124, can be fixed in the process that adhesive-layer 13 solidifies so be arranged in the carbon nanotube layer 19 of touch area 124 in this step.And the adhesive-layer 13 that is positioned at cabling zone 122 has cured, can be unfixing by adhesive-layer 13 so be positioned at the carbon nanotube layer 19 in cabling zone 122.In the present embodiment, the method through the whole adhesive-layer 13 of UV-irradiation makes the UV adhesive curing that is positioned at touch area 124.
Step 6 is removed the carbon nanotube layer 19 that is positioned at cabling zone 122 in each target area 120, obtains the transparency conducting layer 14 that a plurality of intervals are provided with.
Said removal is positioned at the method for the carbon nanotube layer 19 in cabling zone 122 and can peels off or peel off through cleaning roller for boning through adhesive tape.Said cleaning roller surface has certain viscosity, can carbon nanotube layer 19 clung and peel off.Only combines with adhesive-layer 13 owing to be positioned at the carbon nanotube layer 19 in cabling zone 122 through Van der Waals force, with adhesive-layer 13 surface combination power a little less than, so bond or the cleaning roller rolling can be easily with these part carbon nanotube layer 19 removals through adhesive tape.In the present embodiment, will be positioned at carbon nanotube layer 19 removals in cabling zone 122 through the method for adhesive tape bonding.Because present embodiment makes the adhesive-layer 13 that is positioned at cabling zone 122 solidify earlier, the back forms carbon nanotube layer 19, so greatly reduce the difficulty of the carbon nanotube layer 19 of removing cabling zone 122.Certainly, remove the carbon nanotube layer 19 that is positioned at cabling zone 122 and can also take other modes, such as laser ablation, particle beams etching or beamwriter lithography etc.
Step 7, the cabling zone 122 in each target area 120 forms electrode 16 and conducting wire 18.
Said electrode 16 can be arranged at the surface that dielectric base 12 is positioned at cabling zone 122; Also can be arranged at dielectric base 12 and be positioned at transparency conducting layer 14 surfaces of touch area 124; Can also partly be arranged at dielectric base 12 and be positioned at the surface in cabling zone 122, part is arranged at transparency conducting layer 14 surfaces that dielectric base 12 is positioned at touch area 124.Said electrode 16 that the position is set is relevant with the touch point detection method with the touch-control principle of the touch-screen that adopts this touch panel 10; The number of said electrode 16 is relevant with touch-control resolution with the area of this touch panel 10, can select according to the practical application situation.When the area of touch panel 10 is big more, when resolution requirement was high more, the number of said electrode 16 was many more.Vice versa.In the present embodiment, said touch panel 10 comprises six electrodes 16, and these six electrodes 16 are arranged at intervals at transparency conducting layer 14 1 sides.The material of said electrode 16 is other conductive materials such as metal, CNT, electrocondution slurry or ITO, can conduct electricity as long as guarantee this electrode 16.Said electrode 16 can pass through the etching conductive film, like metallic film or indium tin oxide films preparation, and also can be through the silk screen print method preparation.
Said conducting wire 18 comprises a plurality of leads, and its material can be other conductive materials such as metal, CNT, electrocondution slurry or ITO.The cabling mode of said conducting wire 18 can be selected according to actual needs.The etching conductive film can be passed through in said conducting wire 18, like metallic film or indium tin oxide films preparation, and also can be through the silk screen print method preparation.
In the present embodiment, said electrode 16 is electrocondution slurry with conducting wire 18, and said electrode 16 is integrally formed through the serigraphy electrocondution slurry with conducting wire 18.The composition of this electrocondution slurry comprises metal powder, glass powder with low melting point and cementing agent.Wherein, this metal powder is preferably silver powder, and this cementing agent is preferably terpinol or ethyl cellulose.In this electrocondution slurry, the weight ratio of metal powder is 50% ~ 90%, and the weight ratio of glass powder with low melting point is 2% ~ 10%, and the weight ratio of cementing agent is 8% ~ 40%.
Step 8, cutting obtains a plurality of touch panels 10.
Said cutting obtains the step of a plurality of touch panels 10 can pass through methods realizations such as cut, machine cuts.In the present embodiment, through machine cuts each target area 120 of dielectric base 12 is separated, thereby obtain a plurality of touch panels 10.Particularly; Cut said dielectric base 12 along the middle cut line of two row or two row target areas 120 perpendicular to dielectric base 12 thickness directions earlier; 120 middle lines of cut cut said dielectric base 12 perpendicular to dielectric base 12 thickness directions along two adjacent target areas again, so can obtain a plurality of touch panels 10.
Be appreciated that; The step 6 in the present embodiment and the order of step 7 can be exchanged; Promptly the zone of the cabling in each target area 120 122 forms electrode 16 and conducting wire 18 earlier, and then removes the carbon nanotube layer 19 that is positioned at cabling zone 122 in each target area 120.In this method, said conducting wire 18 is formed at carbon nanotube layer 19 surfaces in the cabling zone 122 that is positioned at each target area 120.Owing to form electrode 16 and conducting wire 18 earlier, be preferably laser ablation, particle beams etching or beamwriter lithography etc. so remove the method for the carbon nanotube layer 19 that is positioned at cabling zone 122 in this method.Owing to form electrode 16 and conducting wire 18 earlier, and then remove the carbon nanotube layer 19 that is positioned at cabling zone 122, so kept the part CNT between the electrode 16 of the touch panel 10 of this method preparation and conducting wire 18 and the adhesive-layer 13.Required contraposition mask (mark) when the conducting wire 18 that is appreciated that said serigraphy can be used as laser ablation.
Be appreciated that; Said cutting obtains before the step of a plurality of touch panels 10 an optical clear glue-line (OCA Layer) and a cover plate (Cover Lens) being set on the surface of dielectric base 12, to cover all transparency conducting layers 14, electrode 16 and conducting wire 18.Then, can obtain a plurality of touch-screens through cutting.
Be appreciated that touch panel 10 provided by the invention goes for the touch-screen of various employing structure of transparent conductive layer such as condenser type single-point touches screen, condenser type multi-point touch panel, resistance-type single-point touches screen, resistance-type multi-point touch panel.
The preparation method of the touch panel that the embodiment of the invention provides has the following advantages: the first, and make the adhesive-layer that is positioned at the cabling zone solidify earlier, the back forms carbon nanotube layer, greatly reduces the difficulty of the carbon nanotube layer of removing the cabling zone; The second, through big plate processing procedure, once prepare a plurality of touch panels, simplified technological process, reduced preparation cost; The 3rd; Because carbon nanotube layer only is arranged at the surface that dielectric base is positioned at the touch area, and the conducting wire only is arranged at the surface that dielectric base is positioned at the cabling zone, promptly; Carbon nanotube layer and conducting wire do not have the part of overlapping; So, can between conducting wire and carbon nanotube layer, not produce the capacitance interference signal, thereby accuracy that has improved touch-screen when pointer or finger touches during to the cabling zone.
In addition, those skilled in the art can also do other and change in spirit of the present invention, and these all should be included in the present invention's scope required for protection according to the variation that the present invention's spirit is done.
Claims (14)
1. the preparation method of a touch panel, this method may further comprise the steps:
One dielectric base is provided, and a plurality of target areas are set on a surface of this dielectric base, and each target area comprises a touch area and cabling zone;
On the said surface of this dielectric base, form an adhesive-layer;
Solidify the adhesive-layer that is positioned at the cabling zone;
Form a carbon nanotube layer on the adhesive-layer surface;
Solidify the adhesive-layer that is positioned at the touch area, fix with the carbon nanotube layer that will be positioned at the touch area;
Removal is positioned at the carbon nanotube layer in cabling zone, obtains the transparency conducting layer that a plurality of intervals are provided with;
Cabling zone in each target area forms electrode and conducting wire; And
Cutting obtains a plurality of touch panels.
2. the preparation method of touch panel as claimed in claim 1 is characterized in that, the material of said adhesive-layer is a thermoplastic, and the method that said curing is positioned at the adhesive-layer in cabling zone is local cooling method.
3. the preparation method of touch panel as claimed in claim 1 is characterized in that, the material of said adhesive-layer is a hot-setting adhesive, and the method that said curing is positioned at the adhesive-layer in cabling zone is the spot heating method.
4. the preparation method of touch panel as claimed in claim 1 is characterized in that, the material of said adhesive-layer is a UV glue, and the method that said curing is positioned at the adhesive-layer in cabling zone is local uv irradiation method.
5. the preparation method of touch panel as claimed in claim 4 is characterized in that, the method that said curing is positioned at the adhesive-layer in cabling zone may further comprise the steps:
Through a mask UV glue-line that is positioned at the touch area in each target area is blocked;
Adopt the UV glue-line that is positioned at the cabling zone in each target area of UV-irradiation; And
Remove mask.
6. the preparation method of touch panel as claimed in claim 1 is characterized in that, said carbon nanotube layer forms through the method for print process, sedimentation or directly laying.
7. the preparation method of touch panel as claimed in claim 1; It is characterized in that; Said surface at adhesive-layer forms after the step of a carbon nanotube layer; The carbon nanotube layer that is positioned at the cabling zone only is formed at the adhesive-layer surface of curing, and the carbon nanotube layer that is arranged in the touch area partly or entirely soaks into uncured adhesive-layer.
8. the preparation method of touch panel as claimed in claim 1; It is characterized in that; Said surface at adhesive-layer forms after the step of a carbon nanotube layer, further comprises this carbon nanotube layer of extruding, thereby makes the carbon nanotube layer that is arranged in the touch area soak into the step of adhesive-layer.
9. the preparation method of touch panel as claimed in claim 1 is characterized in that, said removal is positioned at the method for the carbon nanotube layer in cabling zone and peels off or peel off through cleaning roller for boning through adhesive tape.
10. the preparation method of touch panel as claimed in claim 1 is characterized in that, said electrode and conducting wire are through etching conductive film or silk screen print method preparation.
11. the preparation method of touch panel as claimed in claim 1 is characterized in that, the step that said cutting obtains a plurality of touch panels realizes through cut or machine cuts.
12. the preparation method of a touch panel, this method may further comprise the steps:
One dielectric base is provided, and a plurality of target areas are set on a surface of this dielectric base, and each target area comprises a touch area and cabling zone;
On the said surface of this dielectric base, form an adhesive-layer;
Solidify the adhesive-layer that is positioned at the cabling zone;
Form a carbon nanotube layer on the adhesive-layer surface;
Solidify the adhesive-layer that is positioned at the touch area, fix with the carbon nanotube layer that will be positioned at the touch area;
Cabling zone in each target area forms electrode and conducting wire;
Removal is positioned at the carbon nanotube layer in cabling zone; And
Cutting obtains a plurality of touch panels.
13. the preparation method of touch panel as claimed in claim 12 is characterized in that, said conducting wire is formed at the CNT laminar surface that is positioned at the cabling zone.
14. the preparation method of touch panel as claimed in claim 12 is characterized in that, the method that said removal is positioned at the carbon nanotube layer in cabling zone is laser ablation method, particle beams etching method or beamwriter lithography method.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103336620A (en) * | 2013-07-05 | 2013-10-02 | 南昌欧菲光显示技术有限公司 | Touch display screen, optical filter component of touch display screen and preparation method of optical filter component |
| CN104423743A (en) * | 2013-09-02 | 2015-03-18 | 天津富纳源创科技有限公司 | Touch screen preparation method |
| CN104656968A (en) * | 2013-11-15 | 2015-05-27 | 胜华科技股份有限公司 | Touch control panel |
| CN109406586A (en) * | 2017-08-18 | 2019-03-01 | 蓝思科技（长沙）有限公司 | Production method of carbon nano tube sensor and application thereof |
| CN111223399A (en) * | 2018-11-27 | 2020-06-02 | 中华映管股份有限公司 | Manufacturing method of flexible display panel |
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