CN105511706B - The preparation method and its touch sensing of touch sensing - Google Patents
The preparation method and its touch sensing of touch sensing Download PDFInfo
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- CN105511706B CN105511706B CN201610050474.6A CN201610050474A CN105511706B CN 105511706 B CN105511706 B CN 105511706B CN 201610050474 A CN201610050474 A CN 201610050474A CN 105511706 B CN105511706 B CN 105511706B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/52—Electrically conductive inks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- Inks, Pencil-Leads, Or Crayons (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
Abstract
The present invention provides a kind of preparation methods of touch sensing, include the following steps：Inkjet printing etching solution forms conductive pattern area and conductive channel area on conductive film substrate；Edge inkjet printing conductive ink in conductive pattern area and conductive channel area forms conducting wire.The touch sensing preparation method of the present invention forms conductive pattern area with conductive channel area on conductive film by InkJet printing processes and forms conducting wire at the edge in conductive pattern area and conductive channel area；It only needs an ink jet printing device that conductive channel etching and edge cabling two critical process of preparation can be realized, tens original procedures is greatly reduced, so as to which production cost is greatly reduced, improves production efficiency.
Description
Technical field
The present invention relates to a kind of preparation method of touch sensing more particularly to a kind of simple touch sensings of process
Preparation method touch sensing.
Background technology
Touch screen is a kind of transparent absolute positioning system, can detect extraneous touch action and position the position of touch
It sets.By taking GFF structure condenser type touch screens as an example, basic structure is emission layer, OCA, receiving layer, OCA and cover-plate glass.Wherein
Emission layer and receiving layer are patterned transparent conductive film, and the patterned transparent conductive film preparation process is as follows：Using Huang
The techniques such as light, silk-screen printing get rid of the conductive component of pattered region in transparent conductive film, specific conductive to be formed
Pattern and conductive path.Wherein, yellow light is etched to the most commonly used technique of current application, and the basic working procedure of the technique includes：Before
Cleaning, resist coating, exposure, development, etching, de- photoresist, rear cleaning, drying etc..Pattern is prepared using yellow light etching
After the conductive film of change, then silver paste conducting wire printed using silk-screen printing technique, has then been obtained by the processes such as being bonded, binding
Whole touch screen sensor assembly.
Equipment involved by yellow light technique is more and expensive, and liquid medicine used is more, process is complicated, meeting in production process
Many harmful substances are generated, operating personnel and environment can be damaged or destroyed.
In addition, laser ablation is also to prepare the conventional process of pattern conductive film, then silver paste is prepared using silk-screen printing and is led
Then electric line is bonded, binds and obtain complete touch screen sensor assembly.
Etching laser machining used in laser etching process is expensive, and needs that with silk-screen printing cooperation silver could be prepared
Starch conducting wire.In addition, laser ablation is only used for the patterned process of single-faced conductive film, it is not used to prepare patterned double
Face conductive film.Therefore, the touch panel sensor of GF2 structures can not be prepared using laser etching process.
In view of this, it is necessary to the preparation method and its touch sensing of existing touch sensing are improved, with
It solves the above problems.
Invention content
The purpose of the present invention is to provide a kind of simple touch sensing preparation method of process and use the technique system
Standby touch sensing.
For achieving the above object, the present invention provides a kind of preparation method of touch sensing, include the following steps：
Inkjet printing etching solution forms conductive pattern area and conductive channel area on conductive film substrate；In conductive pattern area and conductive channel
Area edge inkjet printing conductive ink forms conducting wire.
As a further improvement on the present invention, the etching solution includes generating non-conductive substance with the conductive film reaction
Etchant, the solvent for dissolving or disperseing etchant and the additive for improving etching solution performance.
As a further improvement on the present invention, the etchant in the etching solution accounts for 0.1% ~ 50%, and the solvent accounts for
50% ~ 99%, the additive accounts for 0% ~ 10%.
As a further improvement on the present invention, the conductive film be nano-silver conductive film, the etchant include hypochlorous acid,
Hypochlorite, permanganic acid, permanganate, perchloric acid, perchlorate, dichromic acid, bichromate, cupric salt, trivalent iron salt, mistake
In oxide, the mixture of peroxide and acid, the mixture of peroxide and complexing agent, sulphur simple substance, organic polysulfide
One or more mixing.
As a further improvement on the present invention, the additive include surfactant, it is antifoaming agent, pH adjusting agent, solvable
It is one or more in property resin, viscosity modifier.
As a further improvement on the present invention, the conductive ink include 1% ~ 50% conductive particle, 40% ~ 90% it is molten
Agent, 0% ~ 10% additive.
As a further improvement on the present invention, the conductive particle includes nanogold, one kind or more of nano silver, Nanometer Copper
The combination of kind, the grain size of the conductive particle is between 1nm ~ 1000nm.
As a further improvement on the present invention, the grain size of the conductive particle is between 1nm ~ 100nm.
As a further improvement on the present invention, the conductive ink include 1% ~ 40% metal salt, 1% ~ 40% complexing agent or
Chelating agent, 50% ~ 99% solvent, 0% ~ 1% surfactant, 0% ~ 1% antifoaming agent, 0% ~ 10% pH adjusting agent, 0% ~ 5% can
Soluble resin.
As a further improvement on the present invention, the metal salt is gold salt, silver salt, mantoquita or aluminium salt.
As a further improvement on the present invention, the metal salt is silver nitrate, silver formate, silver acetate, silver oxalate, tartaric acid
Silver or silver citrate；The complexing agent or chelating agent include ammonium hydroxide, ammonium salt, fatty amine, hydramine, amide.
As a further improvement on the present invention, solvent can be water, monohydric alcohol, dihydric alcohol, polyalcohol, alcohol ether, ether, ketone,
It is one or more in aldehyde.
For achieving the above object, the present invention also provides a kind of preparation method preparations using above-mentioned touch sensing
Touch sensing.
The beneficial effects of the invention are as follows：The preparation method of the touch sensing of the present invention, is being led by InkJet printing processes
Conductive pattern area is formed on electrolemma with conductive channel area and forms conducting wire in conductive pattern area and conductive channel area edge；
Only need that conductive channel etching can be realized in an ink jet printing device and edge cabling prepares two critical process, it will be original several
Ten procedures greatly reduce, so as to which production cost is greatly reduced, improves production efficiency.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to specific embodiment to the present invention
It is described in detail.
The present invention provides a kind of preparation method of touch sensing, includes the following steps：Ink-jet is beaten on conductive film substrate
Etching solution is printed, etching solution reacts with the conductive materials on conductive film and generates nonconducting substance, so that conductive film shape
At scheduled conductive pattern area and conductive channel area；In conductive pattern area and conductive channel area edge inkjet printing conductive ink shape
At conducting wire.
The touch sensing obtained by above-mentioned preparation method is with the viewfinder area interacted for user and around described
The periphery area of viewfinder area；The conductive pattern area constitutes the viewfinder area with conductive channel area, and the electric line that arrives is set on described
Periphery area is with transmission telecommunications number.
Before and after the sequence of the above-mentioned two process of the preparation method of the touch sensing is not arranged, it can be made according to different situations
Go out to change.Specifically, can the first inkjet printing etching solution on conductive film substrate, spend after liquid to be etched and conductive film reaction from
Sub- water cleaning, air gun is dried to form conductive pattern area and conductive channel area, then inkjet printing conductive ink, and drying forms conductor wire
Road；Or first inkjet printing conductive ink, drying form conducting wire, then inkjet printing etching solution, liquid and conductive film to be etched
It after reaction, is cleaned with deionized water, air gun is dried to form conductive pattern area and conductive channel area；Or inkjet printing etches simultaneously
Liquid and conductive ink, for liquid to be etched with after conductive film reaction, drying forms conducting wire, deionized water cleaning, air gun drying.With
It is preferable to use inert protective gas, such as nitrogen when upper air gun drying.
The etching solution includes generating the etchant of non-conductive substance with the conductive film reaction, being lost for dissolving or disperseing
It carves the solvent of agent and improves the additive of etching solution performance.The etchant in the etching solution accounts for 0.1% ~ 50%, described
Solvent accounts for 50% ~ 99%, and the additive accounts for 0% ~ 10%.
The conductive film be metal, metal nanometer line, metal nanoparticle, metal nano plate formed metal conductive film or
The conductive film that other semiconductor conducting films or organic conductive material are formed.In recent years, nano-silver conductive film is because of its numerous superiority
It is more and more widely used.
By taking the nano-silver conductive film that nano silver is formed as an example.The etchant includes but are not limited to hypochlorous acid and secondly chlorine
The hypochlorites such as sour sodium, postassium hypochlorite, calcium hypochlorite；The permanganates such as permanganic acid and its potassium permanganate；Perchloric acid and its high chlorine
The perchlorate such as sour potassium, sodium perchlorate；The bichromates such as dichromic acid and its potassium bichromate；Copper chloride, copper nitrate, copper sulphate, vinegar
The cupric salts such as sour copper；The trivalent iron salts such as iron chloride, ferric sulfate, ferric nitrate；Hydrogen peroxide, organic peroxide, sodium peroxide,
The peroxide such as potassium peroxide, calper calcium peroxide；The mixture of peroxide and acid, acid be the inorganic acids such as hydrochloric acid, sulfuric acid, phosphoric acid and
The organic acids such as formic acid, acetic acid, ethanedioic acid, tartaric acid；The mixture of peroxide and complexing agent, the complexing agent are ammonium hydroxide, ammonium
Salt, organic amine compound, EDTA and its salt etc.；Sulphur simple substance includes the solution of nanoscale sulphur dispersion liquid and sulphur；More vulcanizations
Object, including inorganic and organic polysulfide.
The solvent can be water；The monohydric alcohols such as methanol, ethyl alcohol, isopropanol；The dihydric alcohols such as ethylene glycol, propylene glycol；Glycerine
Equal polyalcohols；The alcohol ethers such as glycol monoethyl ether, ethylene glycol monoethyl ether, propylene glycol propyl ether, diethylene glycol ether；Ether compound；Ketone
Class compound；One or more mixing in aldehyde compound etc..
The additive includes the surfactant for adjusting etching solution surface tension, elimination or etching solution is inhibited to generate foam
Antifoaming agent, adjust etching solution pH value pH adjusting agent, adjust etching fluid viscosity viscosity modifier, can to adjust etching solution viscous
The soluble resin of degree and film forming.
The etchant, solvent and additive can be according to requiring to synthesize or be purchased from market.By etchant, solvent and add
Add agent uniformly to mix merga pass filter and removes granule foreign to get to the etching solution for inkjet printing, it is as follows：
Etching solution 1：1g sodium hypochlorite is dissolved into 60g deionized waters, 10g ethyl alcohol, 10g ethylene glycol, 15g is then added
Propylene glycol propyl ether and 4g glycerine are simultaneously uniformly mixed, and the etching solution for inkjet printing is obtained with 0.45 μm of filter element filtering.
Etching solution 2：2g potassium permanganate is dissolved into 60g deionized waters, be then added 30g propylene-glycol ethyl ethers, 5g glycerine,
2g polyethylene glycol, 1g acetic acid, 0.5g Triton X-100 as antifoaming agent and mixed as surfactant, 0.5g BYK-025
It closes uniformly, the etching solution for inkjet printing is obtained with 0.45 μm of filter element filtering.
Etching solution 3：2g sodium perchlorates are dissolved into 30g deionized waters, be then added 60g ethylene glycol ethyl ethers, 5g glycerine,
2g polyethylene glycol, 1g acetic acid, 0.5g Triton X-100 as antifoaming agent and mixed as surfactant, 0.5g BYK-025
It closes uniformly, the etching solution for inkjet printing is obtained with 0.45 μm of filter element filtering.
Etching solution 4：1g sodium dichromates are dissolved into 40g deionized waters, be then added 50g propylene glycol propyl ethers, 5g glycerine,
2g polyethylene glycol, 1g acetic acid, 0.5g Triton X-100 as antifoaming agent and mixed as surfactant, 0.5g BYK-025
It closes uniformly, the etching solution for inkjet printing is obtained with 0.45 μm of filter element filtering.
Etching solution 5：2g copper chlorides are dissolved into 50g deionized waters, 30g diethylene glycol ethers, 10g propylene glycol is then added
Propyl ether, 7g glycerine, 2g polyvinyl alcohol, 0.5g Triton X-100 as surfactant, 0.5g BYK-025 as defoaming
Agent is simultaneously uniformly mixed, and the etching solution for inkjet printing is obtained with 0.45 μm of filter element filtering.
Etching solution 6：2g ferric nitrates are dissolved into 50g deionized waters, 10g ethylene glycol ethyl ethers, 30g propylene glycol is then added
Propyl ether, 7g glycerine, 2g polyvinylpyrrolidones, 0.5g Triton X-100 as surfactant, 0.5g BYK-025 simultaneously
It is uniformly mixed, the etching solution for inkjet printing is obtained with 0.45 μm of filter element filtering.
Etching solution 7：1g EDTA- disodium salts are added in the hydrogen peroxide that 20g mass fractions are 30%, 30g is then added
The BYK- of deionized water, 30g ethylene glycol ethyl ethers, 10g propylene glycol propyl ethers, 9g diethylene glycol (DEG)s oil, Triton X-100 of 0.5g, 0.5g
It 025 and is uniformly mixed, the etching solution for inkjet printing is obtained with 0.45 μm of filter element filtering.
Etching solution 8：1g acetic acid is added in the hydrogen peroxide that 10g mass fractions are 30%, 40g deionizations are then added
Water, 30g ethylene glycol ethyl ethers, 10g propylene glycol propyl ethers, 9g diethylene glycol (DEG)s, 0.5g surfactants Triton X-100,0.5g antifoaming agent
BYK-025 is simultaneously uniformly mixed, and the etching solution for inkjet printing is obtained with 0.45 μm of filter element filtering.
Etching solution 9：1g ammonium carbonates are added in the hydrogen peroxide that 10g mass fractions are 30%, 30g deionizations are then added
Water, 30g ethylene glycol ethyl ethers, 20g propylene glycol propyl ethers, 9g triethylene glycols, 0.5g surfactants Triton X-100,0.5g antifoaming agent
BYK-025 is simultaneously uniformly mixed, and the etching solution for inkjet printing is obtained with 0.45 μm of filter element filtering.
Etching solution 10：By 1g ammonium sulfate be added to 20g mass fractions be 30% hydrogen peroxide in, then be added 30g go from
Sub- water, 30g ethylene glycol ethyl ethers, 10g propylene glycol propyl ethers, 9g glycerine, 0.5g surfactants Triton X-100,0.5g antifoaming agent
BYK-025 is simultaneously uniformly mixed, and the etching solution for inkjet printing is obtained with 0.45 μm of filter element filtering.
Etching solution 11：2 grams of nanoscale sulphur are distributed in 50g water, be then added 10g ethyl alcohol, 20g propylene glycol monomethyl ethers,
10g ethylene glycol, 5 g glycerine, 2g polyvinyl alcohol, 1g surfactant Triton X-100 are simultaneously uniformly mixed, with 0.45 μm of filter
Core filtering obtains the etching solution for inkjet printing.
Etching solution 12：3g sodium thiosulfate is added in 50g water, be then added 20g isopropanols, 10g ethylene glycol ethyl ethers,
10g propylene glycol, 5 g diethylene glycol (DEG)s, 2g polyethylene glycol, 1g surfactant Triton X-100 are simultaneously uniformly mixed, with 0.45 μm
Filter element filtering obtains the etching solution for inkjet printing.
The conductive ink includes granular pattern conductive ink and agranular type conductive ink.
Wherein granular pattern conductive ink include 1% ~ 50% conductive particle, 40% ~ 90% solvent, 0% ~ 10% additive.
The conductive particle includes but not limited to one or more combinations of nanogold, nano silver, Nanometer Copper, described to lead
The grain size of electric particle is between 1nm ~ 1000nm, between preferably 1nm ~ 100nm, between more preferable 1nm ~ 20nm.
The solvent can be water；The monohydric alcohols such as methanol, ethyl alcohol, isopropanol；The dihydric alcohols such as ethylene glycol, propylene glycol；Glycerine
Equal polyalcohols；The alcohol ethers such as glycol monoethyl ether, ethylene glycol monoethyl ether, propylene glycol propyl ether, diethylene glycol ether；Ether compound；Ketone
Class compound；One or more mixing in aldehyde compound etc..The additive includes adjusting etching solution surface tension
Surfactant, elimination inhibit etching solution to generate the antifoaming agent of foam, the pH adjusting agent for adjusting etching solution pH value, adjust etching
The soluble resin etc. of fluid viscosity and film forming.
Granular pattern conductive ink 1：Using the nano-Ag particles of chemical reduction method synthesis average grain diameter 2nm, by 10g nano silvers
Particle is distributed to by 50g deionized waters, 27g isopropanols, 10g ethylene glycol, 2g glycerine, 0.5g surfactant Triton X-
100, to get to granular pattern nano silver conductive ink in the mixed liquor that 0.5g antifoaming agent BYK-025 is constituted.
Granular pattern conductive ink 2：Using the nano-Ag particles of chemical reduction method synthesis average grain diameter 10nm, by 20g nanometers
Argent grain is distributed to by 40g deionized waters, 27g ethyl alcohol, 10g propylene glycol, 2g diethylene glycol (DEG)s, 0.5g surfactant Triton X-
100, to get to granular pattern nano silver conductive ink in the mixed liquor that 0.5g antifoaming agent BYK-025 is constituted.
Granular pattern conductive ink 3：Using the nano-Ag particles of chemical reduction method synthesis average grain diameter 50nm, by 10g nanometers
Argent grain is distributed to by 60g deionized waters, 10g isopropanols, 17g ethylene glycol, 2g triethylene glycols, 0.5g surfactants Triton
To get to granular pattern nano silver conductive ink in the mixed liquor that X-100,0.5g antifoaming agent BYK-025 is constituted.
Granular pattern conductive ink 4：Using the nano-Ag particles of chemical reduction method synthesis average grain diameter 100nm, by 15g nanometers
Argent grain is distributed to by 45g deionized waters, 27g ethyl alcohol, 10g propylene glycol, 2g glycerine, 0.5g surfactant Triton X-
100, to get to granular pattern nano silver conductive ink in the mixed liquor that 0.5g antifoaming agent BYK-025 is constituted.
Granular pattern conductive ink 5：Using the nano-Ag particles of chemical reduction method synthesis average grain diameter 50nm, by 20g nanometers
Argent grain is distributed to by 30g deionized waters, 37g isopropanols, 10g ethylene glycol, 2g polyvinyl alcohol, 0.5g surfactants
To get to granular pattern nano silver conductive ink in the mixed liquor that Triton X-100,0.5g antifoaming agent BYK-025 are constituted.
Granular pattern conductive ink 6：Using the nano-Ag particles of chemical reduction method synthesis average grain diameter 50nm, by 20g nanometers
Argent grain is distributed to by 40g deionized waters, 27g normal propyl alcohols, 10g ethylene glycol, 2g polyvinylpyrrolidones, 0.5g surface-actives
To get to granular pattern nano silver conductive ink in the mixed liquor that agent Triton X-100,0.5g antifoaming agent BYK-025 are constituted.
Granular pattern conductive ink 7：Using the nano-Ag particles of chemical reduction method synthesis average grain diameter 50nm, by 10g nanometers
Argent grain is distributed to by 50g deionized waters, 27g isobutanols, 10g ethylene glycol, 2g sodium carboxymethylcelluloses, 0.5g surface-actives
To get to granular pattern nano silver conductive ink in the mixed liquor that agent Triton X-100,0.5g antifoaming agent BYK-025 are constituted.
Granular pattern conductive ink 8：Using the nano-Ag particles of chemical reduction method synthesis average grain diameter 50nm, by 10g nanometers
Argent grain is distributed to is lived by 30g deionized waters, 47g isopropanols, 10g ethylene glycol, 2g hydroxypropyl methyl celluloses, the surfaces 0.5g
Property the mixed liquor that constitutes of agent Triton X-100,0.5g antifoaming agent BYK-025 in get to granular pattern nano silver conductive ink.
The agranular type conductive ink lead including 1% ~ 40% metal salt, 1% ~ 40% complexing agent or chelating agent, 50% ~ 99%
Solvent, 0% ~ 1% surfactant, 0% ~ 1% antifoaming agent, 0% ~ 10% pH adjusting agent, 0% ~ 5% soluble resin.
The metal salt is gold salt, silver salt, mantoquita or aluminium salt；The metal salt and its chelate form conduction after the heating
Layer.
By taking silver salt as an example, specifically, the metal salt be silver nitrate, silver formate, silver acetate, silver oxalate, silver tartrate or
Silver citrate etc.；The complexing agent or chelating agent include ammonium hydroxide, ammonium salt, fatty amine, hydramine, amide.The solvent can be water；
The monohydric alcohols such as methanol, ethyl alcohol, isopropanol；The dihydric alcohols such as ethylene glycol, propylene glycol；The polyalcohols such as glycerine；Glycol monoethyl ether, second two
The alcohol ethers such as alcohol list ether, propylene glycol propyl ether, diethylene glycol ether；Ether compound；Ketone compounds；One in aldehyde compound etc.
Kind or a variety of mixing.The soluble resin can be polyvinylpyrrolidone, polyethylene glycol, polyvinyl alcohol, polyurethane, ring
Oxygen resin, phenolic resin, sodium carboxymethylcellulose etc..
Agranular type conductive ink 1：By 10g silver acetates be added to by 20g ammonium hydroxide, 30g ethyl alcohol, 20g ethylene glycol ethyl ethers,
The in the mixed solvent of 10g ethylene glycol, 10g deionized waters composition, ice-water bath stirring make it fully dissolve to lead to get to agranular type
Electric ink.
Agranular type conductive ink 2：20g malic acid silver is added to by 10g ethylenediamines, 30g isopropanols, 20g propylene glycol
Ether, 10g ethylene glycol, 10g deionized waters composition in the mixed solvent, ice-water bath stirring so that it is fully dissolved to get to without
Grain shape conductive ink.
Agranular type conductive ink 3：10g silver citrates are added to by 10g sec-butylamines, 30g isopropanols, 20g propylene glycol
Methyl ether, 10g propylene glycol, 20g deionized waters composition in the mixed solvent, ice-water bath stirring so that it is fully dissolved to get to without
Grain shape conductive ink.
Agranular type conductive ink 4：20g silver tartrates are added to by 10g propane diamine amine, 30g isopropanols, 20g second two
The in the mixed solvent of alcohol methyl ether, 10g ethylene glycol, 10g deionized waters composition, ice-water bath stirring make it fully dissolve to get to nothing
Granular pattern conductive ink.
Agranular type conductive ink 5：20g silver oxalates are added to by 10g ethylenediamines, 30g isopropanols, 20g diethylene glycol (DEG) second
The in the mixed solvent of ether, 10g propylene glycol, 10g deionized waters composition, ice-water bath stirring make it fully dissolve to get to preceding nothing
Grain shape conductive ink.
Agranular type conductive ink 6：10g malic acid silver and 10g silver citrates are added to by 10g ethylenediamines, 30g second
The in the mixed solvent of alcohol, 20g propylene glycol propyl ethers, 10g ethylene glycol, 10g deionized waters composition, ice-water bath stirring keep it fully molten
Solution is to get to agranular type conductive ink.
Without particle conductive ink 7：20g silver nitrates are added to by 15g propane diamine, 35g isopropanols, 20 g ethylene glycol ethyl ethers
Ether, 28g deionized waters, 2g polyvinyl alcohol composition mixed solution in, ice-water bath stirring makes it fully dissolve to get to no particle
Type conductive ink.
Without particle conductive ink 8：10g silver nitrates, 10g silver acetates are added to by 20g ethanol amines, 30g isopropanols, 20 g
In the mixed solution that propylene glycol propyl ether, 28g deionized waters, 2g polyvinylpyrrolidones form, ice-water bath stirring keeps it fully molten
Solution is to get to agranular type conductive ink.
The present invention also provides a kind of touch sensings prepared using above-mentioned touch sensing preparation method.
The beneficial effects of the invention are as follows：The touch sensing preparation method of the present invention, by InkJet printing processes in conduction
Conductive pattern area is formed in ilm substrate with conductive channel area and forms conduction in above-mentioned conductive pattern area and conductive channel area edge
Circuit；Only need an ink jet printing device that conductive channel etching and edge cabling two critical process of preparation can be realized, it will be former
Tens procedures come greatly reduce, so as to which production cost is greatly reduced, improves production efficiency.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to preferred embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that, it can modify to technical scheme of the present invention
Or equivalent replacement, without departing from the spirit of the technical scheme of the invention and range.
Claims (13)
1. a kind of preparation method of touch sensing, it is characterised in that：Include the following steps：
Inkjet printing etching solution forms conductive pattern area and conductive channel area on conductive film substrate；
Conducting wire is formed in conductive pattern area and conductive channel area edge inkjet printing conductive ink.
2. the preparation method of touch sensing according to claim 1, it is characterised in that：The etching solution include with it is described
Conductive film reaction generates the etchant, the solvent for dissolving or disperseing etchant and improvement etching solution performance of non-conductive substance
Additive.
3. the preparation method of touch sensing according to claim 2, it is characterised in that：The erosion in the etching solution
It carves agent and accounts for 0.1% ~ 50%, the solvent accounts for 50% ~ 99%, and the additive accounts for 0% ~ 10%.
4. the preparation method of touch sensing according to claim 2, it is characterised in that：The conductive film is led for nano silver
Electrolemma, the etchant include hypochlorous acid, hypochlorite, permanganic acid, permanganate, perchloric acid, perchlorate, dichromic acid, again
The mixing of chromate, cupric salt, trivalent iron salt, peroxide, peroxide and the mixture, peroxide and complexing agent of acid
One or more mixtures in object, sulphur simple substance, organic polysulfide.
5. the preparation method of touch sensing according to claim 2, it is characterised in that：The additive includes that surface is lived
It is one or more in property agent, antifoaming agent, pH adjusting agent, soluble resin, viscosity modifier.
6. the preparation method of touch sensing according to claim 1, it is characterised in that：The conductive ink include 1% ~
50% conductive particle, 40% ~ 90% solvent, 0% ~ 10% additive.
7. the preparation method of touch sensing according to claim 6, it is characterised in that：The conductive particle includes nanometer
One or more combinations of gold, nano silver, Nanometer Copper, the grain size of the conductive particle is between 1nm ~ 1000nm.
8. the preparation method of touch sensing according to claim 7, it is characterised in that：The grain size ruler of the conductive particle
It is very little between 1nm ~ 100nm.
9. the preparation method of touch sensing according to claim 1, it is characterised in that：The conductive ink include 1% ~
40% metal salt, 1% ~ 40% complexing agent or chelating agent, 50% ~ 99% solvent, 0% ~ 1% surfactant, 0% ~ 1% defoaming
Agent, 0% ~ 10% pH adjusting agent, 0% ~ 5% soluble resin.
10. the preparation method of touch sensing according to claim 9, it is characterised in that：The metal salt is gold salt, silver
Salt, mantoquita or aluminium salt.
11. the preparation method of touch sensing according to claim 9, it is characterised in that：The metal salt be silver nitrate,
Silver formate, silver acetate, silver oxalate, silver tartrate or silver citrate；The complexing agent or chelating agent include ammonium hydroxide, ammonium salt, fat
Amine, hydramine, amide.
12. the preparation method of the touch sensing according to claim 2 or 6 or 9, it is characterised in that：Solvent can be water,
It is one or more in monohydric alcohol, dihydric alcohol, polyalcohol, alcohol ether, ether, ketone, aldehyde.
13. a kind of touch sensing, it is characterised in that：The touch sensing is touching described in any one of claim 1 ~ 12
Control the preparation method preparation of sensor.
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| CN108281467A (en) * | 2018-01-22 | 2018-07-13 | 京东方科技集团股份有限公司 | Pixel defining layer, display base plate and preparation method thereof, display device |
| CN115142064B (en) * | 2019-11-28 | 2024-03-26 | 东莞市图创智能制造有限公司 | Ink jet printing type etching method and ink jet printer with etching function |
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| CN105511706A (en) | 2016-04-20 |
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