CN104216569B - A kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration - Google Patents
A kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration Download PDFInfo
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- CN104216569B CN104216569B CN201410520550.6A CN201410520550A CN104216569B CN 104216569 B CN104216569 B CN 104216569B CN 201410520550 A CN201410520550 A CN 201410520550A CN 104216569 B CN104216569 B CN 104216569B
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Abstract
The present invention relates to touch screen technology field, specifically related to a kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration, the present invention is using overall printing conductive silver paste, in the way of laser-induced thermal etching is carried out to conductive silver paste to form silver paste bridging circuit, effectively prevent the problem of silver paste bridging circuit difficult processing easy fracture, on the basis of it ensure that product yield, again from etching mode stage by stage, the selection of etching solution, the selection of acid-proof ink, the several aspects of selection of conductive silver paste are controlled, so that product yield of the invention is high and performance also improves a lot compared with like product.
Description
Technical field
The present invention relates to touch screen technology field, and in particular to a kind of system of the touch-screen of improved GF individual layers multipoint configuration
Make technique.
Background technology
Touch-screen is a kind of input equipment for significantly improving man machine operation interface, with directly perceived, simple, efficiently advantage.
Touch-screen is had been obtained for being widely applied in many electronic products, such as smart mobile phone, PDA, multimedia, public information are looked into
Inquiry system etc..
Conventional touch technology uses double glazing touch-screen, and it is not only thick and heavy, and can not make the touch-screen of narrow frame.
The touch-screen of GF individual layer multipoint configurations is made up of conducting film+safety glass cover plate, the touch-screen of GF individual layer multipoint configurations due to
Only one layer glass, and other layer choosing ITO conducting films, make its cost, thickness, weight obtain significantly changing
It is kind, but controllability factor is not more in its manufacture craft, but controllability factor is not more in its manufacture craft, such as etch process ring
In section, once the improper use such as the etching solution for using or Protection glue, ITO cablings will go wrong, and cause that product yield is low, property
Can be poor.
The content of the invention
The purpose of the present invention is to solve the shortcomings of the prior art, there is provided it is improved that a kind of product yield is high, performance is good
The manufacture craft of the touch-screen of GF individual layer multipoint configurations.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration, it includes following operation：
A, conductive film sensor production process, it is comprised the following steps successively：
Step A1, conductive film is toasted, the conductive film includes substrate layer and is arranged at the positive ITO layer of substrate layer；
Step A2, in the ITO layer of conductive film rim area acid-proof ink is printed, to the ITO in conductive film viewfinder area
Layer carries out first time etching with the first etching solution, and second etching is carried out with the second etching solution, obtains the conductive thin of ITO cablings
Film, then remove acid-proof ink with alkali lye；
Step A3, conductive film substrate layer print Protection glue to protect substrate layer not contaminated and scrape, then leading
Overall printing conductive silver paste in the ITO layer of conductive film rim area, laser-induced thermal etching is carried out to conductive silver paste to form silver paste bridging line
Road；
Step A4, the conductive film of big is cut, obtained film sensor；
B, binding operation, it is comprised the following steps successively：
After step B1, film sensor test passes, in the side laminating optical cement that sensor there are ITO cablings, pass through
Be combined for film sensor and glass cover-plate by optical cement, then deaeration;
Step B2, conducting resinl ACF is fitted on FPC flexible PCBs；；
Step B3, finally FPC flexible PCBs are bound on film sensor, obtain improved GF individual layers multipoint configuration
Touch-screen.
In step A2, described every liter the first etching solution is made up of following raw material：
Hydrochloric acid 180-220 mL
Sodium dihydrogen phosphate 5-20g
The mL of Hydrofluoric Acid 70-90
Hydrogen peroxide 40-50mL
Halogenated phosphates 0.1-1 mL
Balance of water.
In step A2, described every liter the second etching solution is made up of following raw material：
Hydrochloric acid 160-200 mL
Nitric acid 60-80 mL
Oxalic acid 180-200 mL
Iron chloride 10-20g
APES 10-20ml
Balance of water.
The present invention is effectively controlled the speed of etching, for the first time by way of first time etching and second are etched
The compositions such as corrosion inhibiter are added in etching solution for etching can slow down inhibition speed, carry out preliminary etching, and is etched in for the second time
Carried out on the basis of once etching, etching can be made more accurate, make the etching angle to be formed between 40 ~ 60 degree, substantially without lateral erosion
Phenomenon, so substantially increases product yield.
In step A2, the acid-proof ink is made up of the raw material of following weight portion：
Epoxy modified phenolic resin 10-15 parts
Ethylene glycol ether acetate 20-30 parts
Methyl methacrylate 15-20 parts
Melamine resin 10-15 parts
Chlorinated polypropylene 3-6 parts
NPE 3-8 parts
5-8 parts of tetrafluoroethene powder.
Above-mentioned several different resins cooperate, and learn from other's strong points to offset one's weaknesses, and obtained acid-proof ink has good toughness and acidproof
Performance, can protect being smoothed out after the completion of etch process for etch process in touch-screen manufacturing process, be easily peeled off, and not have residual
Stay in material surface or contaminated materials.
In step A2, it is the sodium hydroxide solution of 4-8% that alkali lye uses mass percent concentration.
In step A2, periodically the first etching solution and the second etching solution are detected, dripped with the NaOH solution of 0.5mol/L
It is fixed, consume the NaOH solution<During 14-17ml, hydrochloric acid must be added, control ph is between 3-5.
Preferably, the conductive silver paste in step A3 is comprised the following raw materials by weight percent：
Silver powder 55-70 %
Epoxy resin 5-15%
Polyester resin 5-15%
Powdered graphite 0.1-1%
SiO 2 powder 1-2%
Diethylene glycol ether acetate 5-15%
Butyl acetate 5-15%,
Wherein, the epoxy resin is PU modified epoxy vinyl ester resins,
Wherein, the polyester resin is acrylic type polyester resin.
PU modified epoxy vinyl ester resins and acrylic type polyester resin in conductive silver paste can be completely dissolved in diethyl
In the dicyandiamide solution of glycol monobutyl ether acetate and butyl acetate, organic carrier, the silver of conductive energy are formed
Powder, powdered graphite can be disperseed well after adding, and improve the electric conductivity of conductive silver paste, PU modified epoxy vinyl esters
Resin, acrylic type polyester resin, the use of SiO 2 powder also cause the pulp strength after conductive silver paste sintering high and base
The adhesive force of material layer is good, can meet the increasingly thinner requirement of the line width of the electrocondution slurry of touch-screen circuit.The silver powder
It is 1 by mass ratio:20-1:30 micro-silver powder end and Nano Silver powder constituent, the particle diameter at the micro-silver powder end is 10-20 μ
M, the particle diameter of the Nano Silver powder is 60-90nm.Micro-silver powder end and Nano Silver powder in this particle diameter and ratio range
Can preferably coordinate, both using the small quality and high surface energy of Nano Silver powder so that Nano Silver powder is attached to micron silver
Powder surface, forms the composite construction of He shells, causes in follow-up mixed process again, and Nano Silver powder is attached to micron
The surface of silver powder is moved together with micro-silver powder end, effectively prevent the agglomeration of Nano Silver powder；Additionally, due to receiving
Rice silver powder have surface high can, the combination of the macromolecular chain in it and epoxy resin and polyester resin is even closer, therefore
Micro-silver powder end can be by the macromolecular chain in being attached to the Nano Silver powder on its surface and epoxy resin and polyester resin
With reference to the Nano Silver powder for being not adhered to micro-silver powder end surface is filled into each inter-species of epoxy resin and polyester resin
Gap, final all micro-silver powder ends and Nano Silver powder all obtain dispersed, improve electric conductivity of the invention.
The baking temperature of conductive film is 135-145 DEG C in step A1, and baking time is 55-65min, and substrate layer is PET
Substrate layer.
Before the conductive film of big is cut in step A4, last layer PE diaphragms are covered, be combined in step B1
When tear off.
Compared with prior art, beneficial effect is the present invention：The present invention is using overall printing conductive silver paste, to leading
In the way of electric silver paste carries out laser-induced thermal etching to form silver paste bridging circuit, silver paste bridging circuit difficult processing easy fracture is effectively prevented
Problem, on the basis of it ensure that product yield, and from etching mode stage by stage, the selection of etching solution, the choosing of acid-proof ink
Select, the several aspects of selection of conductive silver paste are controlled so that product yield of the invention is high and performance is compared with like product
Improve a lot.
Specific embodiment
With reference to embodiment, the present invention is further illustrated.
Embodiment 1.
A kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration, it includes following operation：
A, conductive film sensor production process, it is comprised the following steps successively：
Step A1, conductive film is toasted, the conductive film includes substrate layer and is arranged at the positive ITO layer of substrate layer；
Step A2, in the ITO layer of conductive film rim area acid-proof ink is printed, to the ITO in conductive film viewfinder area
Layer carries out first time etching with the first etching solution, and second etching is carried out with the second etching solution, obtains the conductive thin of ITO cablings
Film, then remove acid-proof ink with alkali lye；
Step A3, conductive film substrate layer print Protection glue to protect substrate layer not contaminated and scrape, then leading
Overall printing conductive silver paste in the ITO layer of conductive film rim area, laser-induced thermal etching is carried out to conductive silver paste to form silver paste bridging line
Road；
Step A4, the conductive film of big is cut, obtained film sensor；
B, binding operation, it is comprised the following steps successively：
After step B1, film sensor test passes, in the side laminating optical cement that sensor there are ITO cablings, pass through
Be combined for film sensor and glass cover-plate by optical cement, then deaeration;
Step B2, conducting resinl ACF is fitted on FPC flexible PCBs；；
Step B3, finally FPC flexible PCBs are bound on film sensor, obtain improved GF individual layers multipoint configuration
Touch-screen.
In step A2, described every liter the first etching solution is made up of following raw material：
The mL of hydrochloric acid 180
Sodium dihydrogen phosphate 5g
The mL of hydrofluoric acid 90
Hydrogen peroxide 50mL
The mL of halogenated phosphates 1
Balance of water.
In step A2, described every liter the second etching solution is made up of following raw material：
Hydrochloric acid 160mL
Nitric acid 60mL
Oxalic acid 180mL
Iron chloride 10g
APES 20ml
Balance of water.
In step A2, the acid-proof ink is made up of the raw material of following weight portion：
10 parts of epoxy modified phenolic resin
30 parts of ethylene glycol ether acetate
15 parts of methyl methacrylate
15 parts of melamine resin
3 parts of chlorinated polypropylene
8 parts of NPE
8 parts of tetrafluoroethene powder.
In step A2, alkali lye use mass percent concentration for 4% sodium hydroxide solution.
In step A2, periodically the first etching solution and the second etching solution are detected, dripped with the NaOH solution of 0.5mol/L
It is fixed, consume the NaOH solution<During 14ml, hydrochloric acid must be added, control ph is between 3-5.
Wherein, the conductive silver paste in step A3 is comprised the following raw materials by weight percent：
Silver powder 55%
Epoxy resin 10%
Polyester resin 5%
Powdered graphite 1%
SiO 2 powder 2%
Diethylene glycol ether acetate 15%
Butyl acetate 12%,
Wherein, the epoxy resin is PU modified epoxy vinyl ester resins,
Wherein, the polyester resin is acrylic type polyester resin,
Wherein, the silver powder is 1 by mass ratio:20 micro-silver powder end and Nano Silver powder constituent, the micron silver
The particle diameter of powder is 10 μm, and the particle diameter of the Nano Silver powder is 60nm.
The baking temperature of conductive film is 135 DEG C in step A1, and baking time is 55min, and substrate layer is PET base material layer.
Before the conductive film of big is cut in step A4, last layer PE diaphragms are covered, be combined in step B1
When tear off.
Embodiment 2.
A kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration, it includes following operation：
A, conductive film sensor production process, it is comprised the following steps successively：
Step A1, conductive film is toasted, the conductive film includes substrate layer and is arranged at the positive ITO layer of substrate layer；
Step A2, in the ITO layer of conductive film rim area acid-proof ink is printed, to the ITO in conductive film viewfinder area
Layer carries out first time etching with the first etching solution, and second etching is carried out with the second etching solution, obtains the conductive thin of ITO cablings
Film, then remove acid-proof ink with alkali lye；
Step A3, conductive film substrate layer print Protection glue to protect substrate layer not contaminated and scrape, then leading
Overall printing conductive silver paste in the ITO layer of conductive film rim area, laser-induced thermal etching is carried out to conductive silver paste to form silver paste bridging line
Road；
Step A4, the conductive film of big is cut, obtained film sensor；
B, binding operation, it is comprised the following steps successively：
After step B1, film sensor test passes, in the side laminating optical cement that sensor there are ITO cablings, pass through
Be combined for film sensor and glass cover-plate by optical cement, then deaeration;
Step B2, conducting resinl ACF is fitted on FPC flexible PCBs；；
Step B3, finally FPC flexible PCBs are bound on film sensor and glass sensor, obtain improved GF
The touch-screen of individual layer multipoint configuration.
In step A2, described every liter the first etching solution is made up of following raw material：
The mL of hydrochloric acid 200
Sodium dihydrogen phosphate 10g
The mL of hydrofluoric acid 80
Hydrogen peroxide 45mL
Halogenated phosphates 0.5mL
Balance of water.
In step A2, described every liter the second etching solution is made up of following raw material：
The mL of hydrochloric acid 170
The mL of nitric acid 70
The mL of oxalic acid 190
Iron chloride 15g
APES 15ml
Balance of water.
In step A2, the acid-proof ink is made up of the raw material of following weight portion：
13 parts of epoxy modified phenolic resin
24 parts of ethylene glycol ether acetate
18 parts of methyl methacrylate
13 parts of melamine resin
5 parts of chlorinated polypropylene
4 parts of NPE
7 parts of tetrafluoroethene powder.
In step A2, alkali lye use mass percent concentration for 6% sodium hydroxide solution.
In step A2, periodically the first etching solution and the second etching solution are detected, dripped with the NaOH solution of 0.5mol/L
It is fixed, consume the NaOH solution<During 16ml, hydrochloric acid must be added, control ph is between 3-5.
Wherein, the conductive silver paste in step A3 is comprised the following raw materials by weight percent：
Silver powder 70%
Epoxy resin 5%
Polyester resin 5%
Powdered graphite 0.5%
SiO 2 powder 1.5%
Diethylene glycol ether acetate 10%
Butyl acetate 8%,
Wherein, the epoxy resin is PU modified epoxy vinyl ester resins,
Wherein, the polyester resin is acrylic type polyester resin,
Wherein, the silver powder is 1 by mass ratio:25 micro-silver powder end and Nano Silver powder constituent, the micron silver
The particle diameter of powder is 15 μm, and the particle diameter of the Nano Silver powder is 75nm.
The baking temperature of conductive film is 135-145 DEG C in step A1, and baking time is 55-65min, and substrate layer is PET
Substrate layer.
Before the conductive film of big is cut in step A4, last layer PE diaphragms are covered, be combined in step B1
When tear off.
Embodiment 3.
A kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration, it includes following operation：
A, conductive film sensor production process, it is comprised the following steps successively：
Step A1, conductive film is toasted, the conductive film includes substrate layer and is arranged at the positive ITO layer of substrate layer；
Step A2, in the ITO layer of conductive film rim area acid-proof ink is printed, to the ITO in conductive film viewfinder area
Layer carries out first time etching with the first etching solution, and second etching is carried out with the second etching solution, obtains the conductive thin of ITO cablings
Film, then remove acid-proof ink with alkali lye；
Step A3, conductive film substrate layer print Protection glue to protect substrate layer not contaminated and scrape, then leading
Overall printing conductive silver paste in the ITO layer of conductive film rim area, laser-induced thermal etching is carried out to conductive silver paste to form silver paste bridging line
Road；
Step A4, the conductive film of big is cut, obtained film sensor；
B, binding operation, it is comprised the following steps successively：
After step B1, film sensor test passes, there is the side laminating optical cement of ITO cablings in glass sensor,
Film sensor and glass cover-plate are combined by optical cement, then deaeration;
Step B2, conducting resinl ACF is fitted on FPC flexible PCBs；；
Step B3, FPC flexible PCBs are finally bound to film sensor, obtain improved GF individual layers multipoint configuration
Touch-screen.
In step A2, described every liter the first etching solution is made up of following raw material：
The mL of hydrochloric acid 210
Sodium dihydrogen phosphate 13g
The mL of hydrofluoric acid 85
Hydrogen peroxide 48mL
Halogenated phosphates 0.8mL
Balance of water.
In step A2, described every liter the second etching solution is made up of following raw material：
The mL of hydrochloric acid 190
Nitric acid 75mL
The mL of oxalic acid 190
Iron chloride 12g
APES 13ml
Balance of water.
In step A2, the acid-proof ink is made up of the raw material of following weight portion：
13 parts of epoxy modified phenolic resin
28 parts of ethylene glycol ether acetate
17 parts of methyl methacrylate
13 parts of melamine resin
5 parts of chlorinated polypropylene
6 parts of NPE
6 parts of tetrafluoroethene powder.
In step A2, alkali lye use mass percent concentration for 7% sodium hydroxide solution.
In step A2, periodically the first etching solution and the second etching solution are detected, dripped with the NaOH solution of 0.5mol/L
It is fixed, consume the NaOH solution<During 15ml, hydrochloric acid must be added, control ph is between 3-5.
Conductive silver paste in step A3 is comprised the following raw materials by weight percent：
Silver powder 60%
Epoxy resin 8%
Polyester resin 8%
Powdered graphite 0.1%
SiO 2 powder 1.9%
Diethylene glycol ether acetate 11%
Butyl acetate 11%,
Wherein, the epoxy resin is PU modified epoxy vinyl ester resins,
Wherein, the polyester resin is acrylic type polyester resin,
Wherein, the silver powder is 1 by mass ratio:27 micro-silver powder end and Nano Silver powder constituent, the micron silver
The particle diameter of powder is 16 μm, and the particle diameter of the Nano Silver powder is 75nm.
The baking temperature of conductive film is 142 DEG C in step A1, and baking time is 58min, and substrate layer is PET base material layer.
Before the conductive film of big is cut in step A4, last layer PE diaphragms are covered, be combined in step B1
When tear off.
Embodiment 4.
A kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration, it includes following operation：
A, conductive film sensor production process, it is comprised the following steps successively：
Step A1, conductive film is toasted, the conductive film includes substrate layer and is arranged at the positive ITO layer of substrate layer；
Step A2, in the ITO layer of conductive film rim area acid-proof ink is printed, to the ITO in conductive film viewfinder area
Layer carries out first time etching with the first etching solution, and second etching is carried out with the second etching solution, obtains the conductive thin of ITO cablings
Film, then remove acid-proof ink with alkali lye；
Step A3, conductive film substrate layer print Protection glue to protect substrate layer not contaminated and scrape, then leading
Overall printing conductive silver paste in the ITO layer of conductive film rim area, laser-induced thermal etching is carried out to conductive silver paste to form silver paste bridging line
Road；
Step A4, the conductive film of big is cut, obtained film sensor；
B, binding operation, it is comprised the following steps successively：
After step B1, film sensor test passes, in the side laminating optical cement that sensor there are ITO cablings, pass through
Be combined for film sensor and glass cover-plate by optical cement, then deaeration;
Step B2, conducting resinl ACF is fitted on FPC flexible PCBs；；
Step B3, finally FPC flexible PCBs are bound on film sensor, obtain improved GF individual layers multipoint configuration
Touch-screen.
In step A2, described every liter the first etching solution is made up of following raw material：
The mL of hydrochloric acid 220
Sodium dihydrogen phosphate 20g
Hydrofluoric Acid 70 mL
Hydrogen peroxide 40mL
Halogenated phosphates 0.1mL
Balance of water.
In step A2, described every liter the second etching solution is made up of following raw material：
The mL of hydrochloric acid 200
The mL of nitric acid 80
The mL of oxalic acid 180
Iron chloride 10g
APES 20ml
Balance of water.
In step A2, the acid-proof ink is made up of the raw material of following weight portion：
15 parts of epoxy modified phenolic resin
30 parts of ethylene glycol ether acetate
20 parts of methyl methacrylate
15 parts of melamine resin
3 parts of chlorinated polypropylene
8 parts of NPE
8 parts of tetrafluoroethene powder.
In step A2, alkali lye use mass percent concentration for 8% sodium hydroxide solution.
In step A2, periodically the first etching solution and the second etching solution are detected, dripped with the NaOH solution of 0.5mol/L
It is fixed, consume the NaOH solution<During 17ml, hydrochloric acid must be added, control ph is between 3-5.
Wherein, the conductive silver paste in step A3 is comprised the following raw materials by weight percent：
Silver powder 70%
Epoxy resin 5%
Polyester resin 5%
Powdered graphite 1%
SiO 2 powder 2%
Diethylene glycol ether acetate 7%
Butyl acetate 10%,
Wherein, the epoxy resin is PU modified epoxy vinyl ester resins,
Wherein, the polyester resin is acrylic type polyester resin,
Wherein, the silver powder is 1 by mass ratio:30 micro-silver powder end and Nano Silver powder constituent, the micron silver
The particle diameter of powder is 20 μm, and the particle diameter of the Nano Silver powder is 90nm.
The baking temperature of conductive film is 145 DEG C in step A1, and baking time is 65min, and substrate layer is PET base material layer.
Before the conductive film of big is cut in step A4, last layer PE diaphragms are covered, be combined in step B1
When tear off.
Above-described embodiment by touch-screen use when the signified back side and front be defined.
The touch-screen of improved GF individual layers multipoint configuration obtained in embodiment 1-4 is carried out into following test, table 1 is referred to.
。
It can be seen from Table 1 that the touch-screen product yield of the obtained improved GF individual layers multipoint configuration of the present invention is high, saturating
Light rate, thermal shock, hot and humid, high-temperature storage performance are good, and b values, haze value are low.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained to the present invention with reference to preferred embodiment, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (7)
1. a kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration, it is characterised in that：It includes following operation：
A, conductive film sensor production process, it is comprised the following steps successively：
Step A1, conductive film is toasted, the conductive film includes substrate layer and is arranged at the positive ITO layer of substrate layer；
Step A2, in the ITO layer of conductive film rim area acid-proof ink is printed, the ITO layer in conductive film viewfinder area is used
First etching solution carries out first time etching, and second etching is carried out with the second etching solution, obtains the conductive film of ITO cablings,
Again acid-proof ink is removed with alkali lye；
Step A3, conductive film substrate layer print Protection glue to protect substrate layer not contaminated and scrape, then in conductive thin
Overall printing conductive silver paste in the ITO layer of film rim area, laser-induced thermal etching is carried out to conductive silver paste to form silver paste bridging circuit；
Step A4, the conductive film of big is cut, obtained film sensor；
B, binding operation, it is comprised the following steps successively：
After step B1, film sensor test passes, there is the side laminating optical cement OCA of ITO cablings in film sensor,
Film sensor and glass cover-plate are combined by optical cement, then deaeration;
Step B2, conducting resinl ACF is fitted on FPC flexible PCBs；
Step B3, finally FPC flexible PCBs are bound on film sensor, obtain touching for improved GF individual layers multipoint configuration
Touch screen,
In step A2, described every liter the first etching solution is made up of following raw material：
Hydrochloric acid 180-220 mL
Sodium dihydrogen phosphate 5-20g
The mL of Hydrofluoric Acid 70-90
Hydrogen peroxide 40-50mL
Halogenated phosphates 0.1-1 mL
Balance of water,
In step A2, described every liter the second etching solution is made up of following raw material：
Hydrochloric acid 160-200 mL
Nitric acid 60-80 mL
Oxalic acid 180-200 mL
The 10-20g of iron chloride 1.
APES 10-20ml
Balance of water.
2. a kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration according to claim 1, its feature exists
In：In step A2, the acid-proof ink is made up of the raw material of following weight portion：
Epoxy modified phenolic resin 10-15 parts
Ethylene glycol ether acetate 20-30 parts
Methyl methacrylate 15-20 parts
Melamine resin 10-15 parts
Chlorinated polypropylene 3-6 parts
NPE 3-8 parts
5-8 parts of tetrafluoroethene powder.
3. a kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration according to claim 1, its feature exists
In：In step A2, it is the sodium hydroxide solution of 4-8% that alkali lye uses mass percent concentration.
4. a kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration according to claim 1, its feature exists
In：In step A2, periodically the first etching solution and the second etching solution are detected, titrated with the NaOH solution of 0.5mol/L, disappeared
Consume the NaOH solution<During 14-17ml, hydrochloric acid must be added, control ph is between 3-5.
5. a kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration according to claim 1, its feature exists
In：Conductive silver paste in step A3 is comprised the following raw materials by weight percent：
Silver powder 55-70%
Epoxy resin 5-15%
Polyester resin 5-15%
Powdered graphite 0.1-1%
SiO 2 powder 1-2%
Diethylene glycol ether acetate 5-15%
Butyl acetate 5-15%,
Wherein, the epoxy resin is PU modified epoxy vinyl ester resins,
Wherein, the polyester resin is acrylic type polyester resin,
Wherein, the silver powder is 1 by mass ratio:20-1:30 micro-silver powder end and Nano Silver powder constituent, the micron silver
The particle diameter of powder is 10-20 μm, and the particle diameter of the Nano Silver powder is 60-90nm.
6. a kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration according to claim 1, its feature exists
In：The baking temperature of conductive film is 135-145 DEG C in step A1, and baking time is 55-65min, and substrate layer is PET base material
Layer.
7. a kind of manufacture craft of the touch-screen of improved GF individual layers multipoint configuration according to claim 1, its feature exists
In：Before the conductive film of big is cut in step A4, last layer PE diaphragms are covered, torn when step B1 is combined
Go.
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| CN107686249A (en) * | 2016-08-05 | 2018-02-13 | 东莞市瑞立达玻璃盖板科技股份有限公司 | A kind of glass cover-plate local reduction technique |
| CN108016155A (en) * | 2016-11-03 | 2018-05-11 | 北京中科纳通电子技术有限公司 | A kind of novel touch screen low temperature manufacturing process |
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|---|---|---|---|---|
| CN103451665A (en) * | 2013-08-30 | 2013-12-18 | 东莞市平波电子有限公司 | Processing technology of touch screen leading wire |
| CN103472968A (en) * | 2013-09-26 | 2013-12-25 | 无锡宇宁光电科技有限公司 | Capacitive screen technology capable of realizing multi-point touch control by single layer of film |
| CN103713772A (en) * | 2013-12-31 | 2014-04-09 | 东莞市平波电子有限公司 | Technology for manufacturing GF single-layer multi-point structure touch screen |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451665A (en) * | 2013-08-30 | 2013-12-18 | 东莞市平波电子有限公司 | Processing technology of touch screen leading wire |
| CN103472968A (en) * | 2013-09-26 | 2013-12-25 | 无锡宇宁光电科技有限公司 | Capacitive screen technology capable of realizing multi-point touch control by single layer of film |
| CN103713772A (en) * | 2013-12-31 | 2014-04-09 | 东莞市平波电子有限公司 | Technology for manufacturing GF single-layer multi-point structure touch screen |
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