CN103456391B - Photosensitive material for forming conductive film, conductive material and conducting film - Google Patents
Photosensitive material for forming conductive film, conductive material and conducting film Download PDFInfo
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- CN103456391B CN103456391B CN201310368778.3A CN201310368778A CN103456391B CN 103456391 B CN103456391 B CN 103456391B CN 201310368778 A CN201310368778 A CN 201310368778A CN 103456391 B CN103456391 B CN 103456391B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
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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
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0026—Apparatus for manufacturing conducting or semi-conducting layers, e.g. deposition of metal
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Abstract
The invention provides a kind of have fully reduce as the good conductivity of conductive film for touch screen, ripple, the conductive film for touch screen of touch-screen excellent.The present invention has the conductive film for touch screen (10) by the conductive layer (14) containing silver formed by silver salt emulsion layer (16) exposure imaging on supporter (12), and wherein, the silver coating amount of silver salt emulsion layer (16) is 1.5 ~ 3.1g/m
2, conductive layer (14) forms the lattice (18) that spacing is 600 μm ~ 800 μm, and sheet resistance is 200 ~ 800 Ω/sq..
Description
Technical field
The present invention relates to conducting film, more specifically, relate to the conductive film for touch screen, photosensitive material for forming conductive film, conductive material and the conducting film that are equipped on touch-screen.
Background technology
In recent years, have studied the conductive film (such as with reference to Japanese Unexamined Patent Publication 2000-13088 publication, Japanese Unexamined Patent Publication 10-340629 publication, Japanese Unexamined Patent Publication 10-41682 publication, Japanese Patent Publication 42-23746 publication, Japanese Unexamined Patent Publication 2006-228649 publication) utilizing various manufacture method to obtain.Wherein, as conductive film, there is the conductive film of the silver salt mode manufactured by the following method: coating silver halide emulsion layer, this silver halide emulsion layer is carried out pattern exposure, makes it be formed and there is the conductive part of the silver of conductivity and the pattern form (such as with reference to Japanese Unexamined Patent Publication 2004-221564 publication, Japanese Unexamined Patent Publication 2004-221565 publication, Japanese Unexamined Patent Publication 2007-95408 publication, Japanese Unexamined Patent Publication 2006-228469 publication, Japanese Unexamined Patent Publication 2006-332459 publication, Japanese Unexamined Patent Publication 2008-244067 publication) for guaranteeing transparent peristome.The conductive film of this silver salt mode, to shield for the purpose of electromagnetic purposes, usually requires it is the conductive film that sheet resistance is low, in addition, reduces sheet resistance by means such as platings.
On the other hand, the various uses of people to conductive film is studied, and the present inventor is conceived to the application start research as touch-screen electrode.
Summary of the invention
The object of the present invention is to provide have fully reduce as the good conductivity of conductive film for touch screen, ripple, the conductive film for touch screen of touch-screen excellent, photosensitive material for forming conductive film, conductive material and conducting film.
The present inventor concentrates on studies, and found that: by spacing while the silver coating amount regulating silver salt emulsion layer, can solve above-mentioned problem, thus complete the present invention.
That is, above-mentioned problem can be solved by following invention.
[1] the 1st invention of the present invention relates to a kind of conductive film for touch screen, and it has the conductive layer containing silver by being formed by silver salt emulsion layer exposure imaging on supporter, and it is characterized in that, the silver coating amount of above-mentioned silver salt emulsion layer is 1.5 ~ 3.1g/m
2, above-mentioned conductive layer forms the lattice that spacing is 600 μm ~ 800 μm, and sheet resistance is 200 ~ 800 Ω/sq..
[2] according to the 1st invention, it is characterized in that, the volume ratio of the silver/adhesive of above-mentioned silver salt emulsion layer is more than 1/4.
[3] according to the 1st invention, it is characterized in that, the volume ratio of the silver/adhesive of above-mentioned silver salt emulsion layer is 1/2 ~ 1/0.7.
[4] according to the 1st invention, it is characterized in that, the live width of above-mentioned conductive layer is 5 ~ 10 μm.
[5] according to the 1st invention, it is characterized in that also possessing transparency conducting layer, above-mentioned transparency conducting layer contains electrically conductive microparticle and adhesive, and the mass ratio (electrically conductive microparticle/adhesive) of above-mentioned electrically conductive microparticle and adhesive is 1/3 ~ 2/1.
[6] the 2nd invention of the present invention relates to a kind of photosensitive material for forming conductive film, and it has silver salt emulsion layer, it is characterized in that, the silver coating amount of above-mentioned silver salt emulsion layer is 1.5 ~ 3.1g/m
2, it also possesses transparency conducting layer, and above-mentioned transparency conducting layer contains electrically conductive microparticle and adhesive, and the mass ratio (electrically conductive microparticle/adhesive) of above-mentioned electrically conductive microparticle and adhesive is 1/3 ~ 2/1.
[7] according to the 2nd invention, it is characterized in that, above-mentioned silver salt emulsion layer contains above-mentioned electrically conductive microparticle, and is also used as above-mentioned transparency conducting layer, and the content of above-mentioned electrically conductive microparticle is 0.15 ~ 0.5g/m
2.
[8] according to the 2nd invention, it is characterized in that, above-mentioned transparency conducting layer is positioned at the upper layer side of above-mentioned silver salt emulsion layer, and the content of the above-mentioned electrically conductive microparticle of above-mentioned transparency conducting layer is 0.2 ~ 0.4g/m
2.
[9] according to the 2nd invention, it is characterized in that, above-mentioned transparency conducting layer is positioned at the lower layer side of above-mentioned silver salt emulsion layer, and the content of the above-mentioned electrically conductive microparticle of above-mentioned transparency conducting layer is 0.15 ~ 0.5g/m
2.
[10] according to the 2nd invention, it is characterized in that, when above-mentioned electrically conductive microparticle is spherical, average grain diameter is 0.085 ~ 0.12 μm, when above-mentioned electrically conductive microparticle is needle-like, the average axial length of major axis is 0.2 ~ 20 μm, the average axial length of minor axis is 0.01 ~ 0.02 μm.
[11] the 3rd invention of the present invention relates to a kind of conductive material, it is characterized in that, it carries out pattern exposure by the photosensitive material for forming conductive film above-mentioned 2nd invention related to, development treatment obtains.
[12] the 4th invention of the present invention relates to a kind of conducting film, it is characterized in that, it has conductive layer on supporter, wherein, layer beyond above-mentioned conductive layer or above-mentioned conductive layer contains electrically conductive microparticle and adhesive, and the mass ratio (electrically conductive microparticle/adhesive) of above-mentioned electrically conductive microparticle and adhesive is 1/3 ~ 2/1.
As mentioned above, conductive film for touch screen of the present invention has the good conductivity as conductive film for touch screen, and ripple fully reduces, touch-screen excellent.Conductive film for touch screen of the present invention due to the sheet resistance of conductive layer be 1000 ~ 2500 Ω/sq., therefore the characteristics of signals of touch-screen (particularly electrostatic capacity type) is excellent, and noise fully reduces.In addition, by making the spacing of lattice be less than 1400 μm, the lattice of conductive layer becomes not eye-catching, and outward appearance is good.Therefore, the writings and image shown by touch-screen etc. are clear and easy to see, and observability is excellent.In addition, conductive film for touch screen of the present invention is due to the pen input cathetus excellence in precision prescribed, the deviation of sheet resistance fully reduces, therefore can without the need to the excessive setting of touch-screen side, such as the excessive setting of correction linearity or resistance deviation.
In addition, photosensitive material for forming conductive film of the present invention, electric conducting material and conducting film can manufacture the conductive film for touch screen with above-mentioned effect.
Accompanying drawing explanation
Fig. 1 is the sectional view that local elliptically represents the conductive film for touch screen of present embodiment.
Fig. 2 is the vertical view of an example (straight line grid pattern) of the lattice representing conductive layer.
Fig. 3 is the vertical view of another example (wave grid pattern) of the lattice representing conductive layer.
Embodiment
Below, with reference to Fig. 1 ~ Fig. 3, the example of execution mode when conductive film for touch screen of the present invention, photosensitive material for forming conductive film, electric conducting material and conducting film being such as used for touch-screen is described.
As shown in Figure 1, the conductive film for touch screen 10 of present embodiment has 2 layers of conductive layer 14 containing silver on supporter 12.Stacked opposite to each other across gap 23 between 2 layers of conductive layer 14.These conductive layers 14 are by being formed silver salt emulsion layer 16 exposure imaging, and the silver coating amount of silver salt emulsion layer 16 is 1.5 ~ 3.1g/m
2.
In addition, as shown in Figure 2, conductive layer 14 forms the lattice 18 that spacing Pa is 600 μm ~ 800 μm, and its sheet resistance is 200 ~ 800 Ω/sq..Conductive layer 14 comprises the layer being formed as latticed current-carrying part 20 and peristome in addition 22.In addition, conductive film for touch screen 10 arranges transparency conducting layer sometimes, even if but the sheet resistance of transparency conducting layer is also large than the sheet resistance of conductive layer 14 in this case, therefore the sheet resistance of conductive layer 14 becomes the sheet resistance of conductive film for touch screen 10.
The conductive film for touch screen 10 of such present embodiment can be obtained by the lattice 18 of exposure imaging given shape on specific photosensitive silve halide material described in detail below and silver salt emulsion layer 16.
In addition, not shown transparency conducting layer can be inserted between supporter 12 and conductive layer 14, also can insert transparency conducting layer between conductive layer 14 and the superficial layer of touch-screen.
Below, the formation of each layer of the conductive film for touch screen 10 of present embodiment is described in detail.
[supporter 12]
As the supporter 12 used in the conductive film for touch screen 10 of present embodiment, plastic film, plastic plate, glass plate etc. can be enumerated.
As the raw material of above-mentioned plastic film and plastic plate, such as, can use the polyesters such as PETG (PET), PEN (PEN); The TPO such as polyethylene (PE), polypropylene (PP), polystyrene, EVA; Vinyl group resin; And Merlon (PC), polyamide, polyimides, acrylic resin, tri acetyl cellulose (TAC) etc.
As supporter 12, preferred PET(fusing point is 258 DEG C), PEN(fusing point is 269 DEG C), PE(fusing point is 135 DEG C), PP(fusing point is 163 DEG C), polystyrene (fusing point is 230 DEG C), polyvinyl chloride (fusing point is 180 DEG C), Vingon (fusing point is 212 DEG C) or TAC(fusing point be 290 DEG C) etc. fusing point be plastic film or the plastic plate of less than about 290 DEG C, particularly from the viewpoint such as light transmission and processability, preferred PET.The transparent and electrically conductive film such due to conductive film for touch screen 10 requires the transparency, and therefore preferably the transparency of supporter 12 is high.
[silver salt emulsion layer 16]
Become the silver salt emulsion layer 16 of the conductive layer 14 of conductive film for touch screen 10, except containing except silver salt and adhesive, also containing the additive such as solvent and dyestuff.
As the silver salt used in present embodiment, the organic silver salts such as inorganic silver salt and silver acetate such as silver halide can be enumerated.In the present embodiment, the silver halide of the excellent of optical sensor is preferably used as.
It is 1.5 ~ 3.1g/m that the silver coating amount (coating weight of silver salt) of silver salt emulsion layer 16 is converted into silver
2.When this silver coating amount does not meet above-mentioned scope, when making conductive film for touch screen 10, desired sheet resistance can not be obtained.
As the adhesive used in present embodiment, the polysaccharides such as such as gelatin, polyvinyl alcohol (PVA), PVP (PVP), starch, cellulose and its derivates, poly(ethylene oxide), polyvinylamine, shitosan, polylysine, polyacrylic acid, ALG, poly-hyaluronic acid, carboxycellulose etc. can be enumerated.They have the character of neutrality, anionic property, cationic according to the ionic difference of functional group.
The content of the adhesive contained in the silver salt emulsion layer 16 of present embodiment is not particularly limited, and suitably can determine can play in dispersed and adhering scope.The content of the adhesive in silver salt emulsion layer 16, by Ag/ adhesive volume basis, is preferably more than 1/4, is more preferably more than 1/2.Ag/ adhesive volume ratio is preferably less than 100/1, is more preferably less than 50/1.In addition, Ag/ adhesive volume ratio more preferably 1/2 ~ 2/1.Most preferably be 1/2 ~ 0.7/1.By making Ag/ adhesive volume ratio in silver salt emulsion layer 16 within the scope of this, even if also can suppress the deviation of resistance value when have adjusted silver coating amount, obtain the conductive film for touch screen 10 with uniform sheet resistance.
< solvent >
The solvent used in the formation of silver salt emulsion layer 16 is not particularly limited, and can enumerate such as water, organic solvent (ester class, the ethers etc. such as the sulfoxide type such as amide-type, methyl-sulfoxide, ethyl acetate such as the ketone such as alcohols, acetone, formamide such as such as methyl alcohol), ionic liquid and their mixed solvent.
The content of the solvent used in the silver salt emulsion layer 16 of present embodiment, relative to the gross mass of the silver salt contained in silver salt emulsion layer 16, adhesive etc., is the scope of 30 ~ 90 quality %, is preferably the scope of 50 ~ 80 quality %.
Other additives of < >
About the various additives used in present embodiment, be not particularly limited, can preferably use known additive.
[other layer is formed]
Silver salt emulsion layer 16 can arrange not shown protective layer.In the present embodiment, " protective layer " refers to the layer formed by the adhesive such as gelatin or high molecular polymer, prevents the effect and being formed at abrading and improve mechanical characteristic to have on photosensitive silver salt emulsion layer 16 to play.Its thickness is preferably less than 0.2 μm.Coating process and the formation method of protective layer are not particularly limited, and suitably can select known coating process and formation method.
In addition, in the below of silver salt emulsion layer 16, all right setting example is as priming coat.
[conductive polymer layer, electrically conductive microparticle layer]
The conductive film for touch screen 10 of present embodiment can also have the conductive polymer layer containing electric conductive polymers such as PEDOT or the electrically conductive microparticle layer containing electrically conductive microparticle further.This conductive polymer layer or electrically conductive microparticle layer are conductivity is 1.0 × 10
7the conductivity of Ω/more than sq. is low, high-resistance transparency conducting layer.By arranging this high-resistance transparency conducting layer, after defining conductive film for touch screen 10, deviation in the face of sheet resistance can be made even, and linearity during pen input improves.This high-resistance transparency conducting layer, after making conductive film for touch screen 10, as long as be positioned at the position conducted with conductive layer 14, such as high-resistance transparency conducting layer preferably during fabrication with silver salt emulsion layer 16(conductive layer 14) formed adjacently.
Electrically conductive microparticle layer contains electrically conductive microparticle and adhesive by the layer that makes silver salt emulsion layer 16 self or formed on silver salt emulsion layer 16 adjoining position or the layer between silver salt emulsion layer 16 and superficial layer or superficial layer self or the layer between supporter 12 and silver salt emulsion layer 16 and is formed.The mass ratio (electrically conductive microparticle/adhesive) of electrically conductive microparticle and adhesive is preferably 1/3 ~ 2/1, is more preferably 1/3 ~ 1/1.When making silver salt emulsion layer 16 self contain electrically conductive microparticle and adhesive, define electrically conductive microparticle layer at the peristome 22 of the lattice 18 of conductive layer 14.That is, the peristome 22 of lattice 18 works as the transmittance section being dispersed with electrically conductive microparticle.
When the position beyond silver salt emulsion layer 16 forms electrically conductive microparticle layer, electrically conductive microparticle layer is preferably formed in and silver salt emulsion layer 16 adjoining position, is also preferably formed between silver salt emulsion layer 16 and supporter 12.In addition, when electrically conductive microparticle layer is between silver salt emulsion layer 16 and superficial layer, or when being superficial layer self, in the manufacturing process of conductive film for touch screen 10, electrically conductive microparticle reacts, and likely causes the transparency of conductive film for touch screen 10 to reduce.
< electrically conductive microparticle and adhesive >
About electrically conductive microparticle, SnO can be enumerated
2, ZnO, TiO
2, Al
2o
3, In
2o
3, MgO, BaO and MoO
3on the particle of the metal oxide further containing xenogenesis atom in metal oxide and they composite oxides (oxide containing two or more metal ion) and these metal oxides.As metal oxide, preferred SnO
2, ZnO, TiO
2, Al
2o
3, In
2o
3, MgO, particularly preferably SnO
2.
The shape of the electrically conductive microparticle used in present embodiment is not particularly limited, granular, needle-like etc. can be enumerated.In addition, about its size, during spheroidal particle, preferred average grain diameter is 0.085 ~ 0.12 μm.During needle-like, the average axial length of preferred major axis is 0.2 ~ 20 μm, the average axial length of minor axis is 0.01 ~ 0.02 μm.
When making to contain electrically conductive microparticle and adhesive in silver salt emulsion layer 16, the coating weight of electrically conductive microparticle is preferably 0.15 ~ 0.5g/m
2.When electrically conductive microparticle layer is positioned at the upper layer side of silver salt emulsion layer 16, the coating weight of electrically conductive microparticle is preferably 0.2 ~ 0.4g/m
2.When electrically conductive microparticle layer is positioned at the lower layer side of silver salt emulsion layer 16, the coating weight of electrically conductive microparticle is preferably 0.15 ~ 0.5g/m
2.
In order to make electrically conductive microparticle and supporter 12 adhere to, in electrically conductive microparticle layer, additionally use adhesive.As such adhesive, preferably use water-soluble polymer.
As above-mentioned adhesive, the polysaccharides such as such as gelatin, carrageenan, polyvinyl alcohol (PVA), PVP (PVP), starch, cellulose and its derivates, poly(ethylene oxide), polysaccharide, polyvinylamine, shitosan, polylysine, polyacrylic acid, ALG, poly-hyaluronic acid, carboxycellulose, Arabic gum, mosanom etc. can be enumerated.They have the character of neutrality, anionic property, cationic because of the ionic difference of functional group.
In addition, as gelatin, outside delime process gelatin, acid treatment gelatin can also be adopted, the gelatin (phthalate gelatin, acetylated gelatin) of the enzyme catabolite of the hydrolysate of gelatin, gelatin and amino, carboxyl modified can be used.
[conductive film for touch screen 10]
The conductive film for touch screen 10 of present embodiment by the silver salt emulsion layer be formed on supporter 12 16 is carried out waffle-like pattern exposure, development treatment obtains.
In present embodiment, by the lattice 18 that pattern exposure, development treatment are formed, there is as shown in Figure 2 latticed and be the straight line grid pattern of straight line nearly orthogonal form, also have the current-carrying part 20 between cross part 24 as shown in Figure 3 to have at least 1 bending wave grid pattern etc.In present embodiment, the total of the live width Wa of the spacing Pa(current-carrying part 20 of the lattice 18 of preferred conductive layer 14 and the width W b of peristome 22) be 600 μm ~ 800 μm.
In addition, in the present embodiment, by applying conductive polymer further on conductive layer 14, high-resistance transparency conducting layer can be formed further.
[exposure]
Silver salt emulsion layer 16 is carried out the method for pattern exposure, can be undertaken by the face exposure that make use of photomask, also can by utilizing the scan exposure of laser beam to carry out.Now, can be the refraction type exposure that have employed lens, also can be the reflective exposure that have employed speculum, the Exposure modes such as contact exposure, proximity exposure, reduced projection exposure, reflective projection exposure can be adopted.
[development treatment]
As mentioned above, silver salt emulsion layer 16, by after pattern exposure, implements development treatment further.Development treatment can adopt development treatment technology conventional in silver salt photographic, photographic paper, halftone screen film, photomask emulsion mask etc.
In the present embodiment, by carrying out above-mentioned pattern exposure and development treatment, form the current-carrying part 20(metallic silver portion of lattice shape at exposed portion), form peristome 22(transmittance section in unexposed portion) simultaneously.
To the development treatment of silver salt emulsion layer 16, can comprise by the silver salt removing unexposed portion and realize the fixing process carried out for the purpose of stabilisation.The fixing treatment technology used in silver salt photographic, photographic paper, halftone screen film, photomask emulsion mask etc. can be adopted to the fixing process of silver salt emulsion layer 16.
The conductive layer 14 of the conductive film for touch screen 10 of the present embodiment so obtained, when electrically conductive microparticle enters silver salt emulsion layer 16, electrically conductive microparticle is distributed to the peristome 22(transmittance section not having silver salt), formed resistance higher than current-carrying part 20(metallic silver portion) transparency conducting layer.
In addition, when the position beyond silver salt emulsion layer 16 forms electrically conductive microparticle layer, part corresponding with the peristome 22 of conductive layer 14 in electrically conductive microparticle layer, as described above, works as the transmittance section being dispersed with electrically conductive microparticle.
In addition, in the manufacture method of the conductive film for touch screen 10 of present embodiment, without the need to operations such as platings.This is because, in the manufacture method of the conductive film for touch screen 10 of present embodiment, by regulating silver coating amount, the silver/adhesive ratio of silver salt emulsion layer 16, desired sheet resistance can be accessed.In addition, as required, calendering process etc. can also be carried out.
(the dura mater process after development treatment)
After development treatment is carried out to silver salt emulsion layer 16, be preferably impregnated in hard coat agent and carry out dura mater process.As hard coat agent, the compound that twain-aldehyde compound and the boric acid etc. such as such as glutaraldehyde, hexandial, 2,3-dihydroxy-Isosorbide-5-Nitrae-diox are recorded in No. 2-141279, Japanese Unexamined Patent Publication can be enumerated.
The silver salt emulsion layer 16 of above-mentioned present embodiment and conductive material can with the appropriately combined use of technology of the Publication recorded in following table 1 and table 2 and International Publication pamphlet.Wherein, the statement such as " JP ", " number publication ", " number pamphlet " is eliminated.
[table 1]
[table 2]
[priming coat]
In order to prevent conductive layer 14 from peeling off from supporter 12, preferably priming coat is set on supporter 12.As the material of priming coat, acrylate copolymer, Vingon, styrene butadiene rubbers, polyester etc. can be used.The thickness of priming coat is preferably 0.05 ~ 0.5 μm.
< touch-screen >
The conductive film for touch screen 10 of present embodiment is such as applicable to the touch-screen of resistance membrane type.
About the touch-screen of resistance membrane type, when the surface of finger tip touching touch-screen, the Contact of the conductive layer 14 of this part, flows through electric current between 2 layers of conductive layer 14, detects the voltage produced between 2 layers of conductive layer 14, can try to achieve the coordinate of finger tip.
The particularly conductive film for touch screen 10 of present embodiment, because sheet resistance is 200 ~ 800 Ω/sq., therefore the characteristics of signals of resistive touch panel is excellent, can reduce noise fully, thus, can realize the high and position probing of fast response time of precision.
In addition, the spacing Pa due to the lattice 18 of conductive layer 14 is more than 600 μm, therefore can reduce ripple fully, and because spacing Pa is less than 800 μm, therefore the lattice 18 of conductive layer 14 becomes not eye-catching, and outward appearance is good.Therefore, the touch-screen that writings and image etc. becomes clear and easy to see, observability is excellent shown by touch-screen can be provided.
In addition, due to the peristome 22 at conductive layer 14 or the position beyond conductive layer 14 being formed with the transparency conducting layers such as electrically conductive microparticle layer or conductive polymer layer, thus conductive film for touch screen 10 can be made conductive at whole mask, verily can follow the coordinate measurement of pen input, such as, can improve linearity during pen input.
In addition, owing to forming priming coat on supporter 12, and after silver salt emulsion layer 16 is carried out development treatment, be impregnated in hard coat agent and carry out dura mater process, therefore the sliding of touch-screen improves, even if particularly pen slides near terminal, also there will not be conductive layer broken string etc., the phenomenon that local surfaces resistance raises can be avoided.
< embodiment >
Below, describe the present invention in detail according to embodiment, but the invention is not restricted to these embodiments.
[embodiment 1]: with reference to table 3
(preparation of emulsion A)
1 liquid:
2 liquid
Water 300ml
Silver nitrate 150g
3 liquid
Chlordene iridium (III) the sour potassium (the 0.005%KCl20% aqueous solution) used in 3 liquid and chlordene rhodium acid ammonium (the 0.001%NaCl20% aqueous solution) are prepared by the following method: dissolved in the KCl20% aqueous solution, the NaCl20% aqueous solution respectively by respective complex compound powder, heat 120 minutes at 40 DEG C.
To being held in 38 DEG C, pH is in 1 liquid of 4.5, while stirring with within 20 minutes, to add 2 liquid and 3 liquid be respectively equivalent to 90% amount, form the nuclear particle of 0.16 μm.Then, added following 4 liquid, 5 liquid with 8 minutes, then with within 2 minutes, to add 2 liquid and 3 liquid remaining 10% amount, make nuclear particle grow to 0.21 μm.Then, add KI 0.15g, slaking 5 minutes, terminate particle and formed.
4 liquid
Water 100ml
Silver nitrate 50g
5 liquid
Water 100ml
Sodium chloride 13g
KBr 11g
Potassium ferrocyanide 5mg
Then, according to conventional methods, flocculence is adopted to wash.Specifically, cool the temperature to 35 DEG C, with sulfuric acid, pH is declined until there is silver halide precipitation (pH is the scope of 3.6 ± 0.2).
Then, about 3L supernatant (the first washing) is removed.Then, after adding 3L distilled water, add sulfuric acid until there is silver halide precipitation.Again remove 3L supernatant (the second washing).Repeat again to wash identical operation (the 3rd washes) for 1 time and second, terminate washing, desalination operation.
Washing, emulsion after desalination are adjusted to pH is 6.4, pAg is 7.5, add sodium benzenethiosulfonate 10mg, benzene sulfo-sulfinic acid sodium 3mg, sodium thiosulfate 15mg and chlorination auric acid 10mg, chemical sensitization is implemented to obtain the suitableeest sensitivity at 55 DEG C, add 1 as stabilizer, 3,3a, 7-purine 100mg, Proxel(trade name as anticorrisive agent, ICICo., Ltd. system) 100mg.The iodine chlorine Silver Bromide Cubic grain emulsion that the average grain diameter finally obtained containing 70 % by mole of silver chlorates, 0.08 % by mole of silver iodide is 0.22 μm, coefficient of variation is 9%.Final as emulsion, pH=6.4, pAg=7.5, conductivity=40 μ S/m, density=1.2 × 10
3kg/m
3, viscosity=60mPas.
(preparation of coating fluid)
Sensitizing coloring matter (SD-1: with reference to following chemical formula) 5.7 × 10 is added in above-mentioned emulsion A
-4mol/molAg, implements light splitting sensitizing.Then KBr3.4 × 10 are added
-4mol/molAg, compound (Cpd-3: with reference to following chemical formula) 8.0 × 10
-4mol/molAg, fully mixes.
Then, 1,3,3a, the 7-purine 1.2 × 10 is added
-4mol/molAg, hydroquinones 1.2 × 10
-2mol/molAg, citric acid 3.0 × 10
-4mol/molAg, 2,4-dichloro-6-hydroxies-1,3,5-triazines sodium salt 90mg/m
2, to be the particle diameter of 15wt% relative to gelatin be cataloid, water based emulsion (aqL-6: with reference to the following chemical formula) 50mg/m of 10 μm
2, polyethyl acrylate latex 100mg/m
2, methyl acrylate and 2-acrylamide-2-methyl propane sulfonic sodium salt and methacrylic acid (2-Acetoxvethyl) ester latex copolymer (mass ratio is 88:5:7) 100mg/m
2, hud typed latex { core: styrene/butadiene copolymers (mass ratio is 37/63), shell: styrene/acrylic (2-Acetoxvethyl) ester (mass ratio is 84/16, core/shell than be=50/50) } 100mg/m
2, be the compound (Cpd-7: with reference to following chemical formula) of 4wt% relative to gelatin, with citric acid, the pH of coating fluid is adjusted to 5.6.
(priming coat)
Following operation, supporter arranges priming coat and (as supporter, adopts PETG (PET) (thickness is 100 μm).PET adopts the PET having carried out surface hydrophilic process in advance).As according to the following priming coat that the silver halide emulsion layer formed is described, be 0.195g/m according to gelatin
2mode arrange.This priming coat also doubles as transparency conducting layer.
1 liquid
Water 410ml
Gelatin 11.4g
Sb doped stannum oxide (stone originates in industry Inc., trade name SN100P) 19.5g
Known surfactant etc. in camera technique can be added in priming coat.
(silver halide emulsion layer)
On above-mentioned priming coat, coating uses emulsion A and the emulsion layer coating fluid prepared as stated above, and makes Ag be 1.5g/m
2, gelatin is 0.21g/m
2.That is, be 1/1.1(volume ratio according to the ratio of Ag and gelatin (adhesive)) mode be coated with.
(protective layer)
Silver halide emulsion layer arranges protective layer.
1 liquid:
Water 985ml
Gelatin 15g
In addition, suitably known surfactant, anticorrisive agent, pH adjusting agent in camera technique is added.
By after the coated articles drying that so obtains, as sample A.Transparency conducting layer (priming coat) is 0.3354g/m according to electrically conductive microparticle
2, electrically conductive microparticle/adhesive is than being 1.71/1(mass ratio) mode applying conductive particulate.In addition, in order to analyze the independent resistance of electrically conductive microparticle (sheet resistance of peristome), do not carried out by this sample A exposing, development treatment and only carry out fixing process, measure the sheet resistance not having silver halide, result is 1.5 × 10
9Ω/sq..
(exposure, development treatment)
Then, to the sample A of above-mentioned preparation, by can be formed live width/interval=8 μm/692 μm developed silver picture cancellate photomask live width/interval=692 μm/8 μm (spacing is 700 μm) be spaced apart cancellate photomask, and expose in order to the directional light that high-pressure mercury lamp is light source, use following developing liquid developing, then after using fixing solution (trade name: CN16X N3X-R: Fuji Photo Film Co., Ltd.'s system) to carry out development treatment, use pure water drip washing, obtain the conductive film for touch screen of embodiment 1.
[composition of developer solution]
Containing following compound in 1L developer solution.
[the dura mater process after development]
After development, flood in glutaraldehyde water solution, carry out dura mater process.
[embodiment 2]: with reference to table 3
Ag is made to be 1.7g/m
2be coated with the coating fluid of silver halide emulsion layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 2.
[embodiment 3]: with reference to table 3
Ag is made to be 1.9g/m
2be coated with the coating fluid of silver halide emulsion layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 3.
[embodiment 4]: with reference to table 3
Ag is made to be 2.1g/m
2be coated with the coating fluid of silver halide emulsion layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 4.
[embodiment 5]: with reference to table 3
Ag is made to be 2.3g/m
2be coated with the coating fluid of silver halide emulsion layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 5.
[embodiment 6]: with reference to table 3
Ag is made to be 2.5g/m
2be coated with the coating fluid of silver halide emulsion layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 6.
[embodiment 7]: with reference to table 3
Ag is made to be 2.7g/m
2be coated with the coating fluid of silver halide emulsion layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 7.
[embodiment 8]: with reference to table 4
Ag is made to be 2.9g/m
2be coated with the coating fluid of silver halide emulsion layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 8.
[embodiment 9]: with reference to table 4
Ag is made to be 3.1g/m
2be coated with the coating fluid of silver halide emulsion layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 9.
[embodiment 10]: with reference to table 4
Ag is made to be 2.1g/m
2be coated with the coating fluid of silver halide emulsion layer, the cancellate photomask that is spaced apart of cancellate photomask live width/interval=592 μm/8 μm (spacing is 600 μm) by the developed silver picture that can form live width/interval=8 μm/592 μm exposes, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 10.
[embodiment 11]: with reference to table 4
Ag is made to be 2.1g/m
2be coated with the coating fluid of silver halide emulsion layer, the cancellate photomask that is spaced apart of cancellate photomask live width/interval=792 μm/8 μm (spacing is 800 μm) by the developed silver picture that can form live width/interval=8 μm/792 μm exposes, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 11.
[embodiment 12]: with reference to table 4
Ag is made to be 2.1g/m
2be coated with the coating fluid of silver halide emulsion layer, supporter do not carry out surface hydrophilic process, operates all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 12.
[embodiment 13]: with reference to table 4
Ag is made to be 2.1g/m
2be coated with the coating fluid of silver halide emulsion layer, after development treatment, do not carry out the dura mater process utilizing glutaraldehyde water solution to flood, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of embodiment 13.
[comparative example 1]: with reference to table 5
Ag is made to be 1.4g/m
2be coated with the coating fluid of silver halide emulsion layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of comparative example 1.
[comparative example 2]: with reference to table 5
Ag is made to be 3.2g/m
2be coated with the coating fluid of silver halide emulsion layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of comparative example 2.
[comparative example 3]: with reference to table 5
Ag is made to be 2.1g/m
2be coated with the coating fluid of silver halide emulsion layer, the cancellate photomask that is spaced apart of cancellate photomask live width/interval=492 μm/8 μm (spacing is 500 μm) by the developed silver picture that can form live width/interval=8 μm/492 μm exposes, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of comparative example 3.
[comparative example 4]: with reference to table 5
Ag is made to be 2.1g/m
2be coated with the coating fluid of silver halide emulsion layer, the cancellate photomask that is spaced apart of cancellate photomask live width/interval=892 μm/8 μm (spacing is 900 μm) by the developed silver picture that can form live width/interval=8 μm/892 μm exposes, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of comparative example 4.
[comparative example 5]
Ag is made to be 2.1g/m
2be coated with the coating fluid of silver halide emulsion layer, the cancellate photomask that is spaced apart of cancellate photomask live width/interval=592 μm/8 μm (spacing is 600 μm) by the developed silver picture that can form live width/interval=8 μm/592 μm exposes, and do not form transparency conducting layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of comparative example 5.
[comparative example 6]
Ag is made to be 2.1g/m
2be coated with the coating fluid of silver halide emulsion layer, and do not form transparency conducting layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of comparative example 6.
[comparative example 7]
Ag is made to be 2.1g/m
2be coated with the coating fluid of silver halide emulsion layer, the cancellate photomask that is spaced apart of cancellate photomask live width/interval=792 μm/8 μm (spacing is 800 μm) by the developed silver picture that can form live width/interval=8 μm/792 μm exposes, and do not form transparency conducting layer, operate all similarly to Example 1 in addition, obtain the conductive film for touch screen of comparative example 7.
[evaluation]
(evaluation of the mensuration of sheet resistance and the deviation of sheet resistance)
The sheet resistance of conductive layer 14 uses the noncontact resistance instrument 717B(H of COPER Electronics Co., Ltd) measure.In addition, the sheet resistance of peristome 22 uses digital ultra-high resistance (SR meter) R8340A of ADVANTEST Inc. to measure.
(evaluation of ripple)
Prepare the Matsushita Electric Industries PDP(TH-42PX300 of the electromagnetic shielding film eliminating surface), configure rotating disk thereon, this rotating disk is for arranging the conductive film for touch screen made.The glass that rotating disk is 5mm by thickness is made, and imitates PDP front panel.In addition, also with angle index, the drift angle of the conductive film for touch screen of setting can be learnt.Power supply is cut PDP, HDMI terminal and the pictcure generator (ASTROVG828D) of PDP are connected.White 255 signal maximum for output valve from pictcure generator is delivered to PDP.With adhesive tape, conductive film for touch screen is entirely fixed on the rotating pan.Make room become darkroom, rotating disk is rotated between-45 ° ~+45 °, drift angle, visually observes and evaluate ripple.About the observability of ripple, observe at the viewing distance place of the front 1.5m of distance PDP, be evaluated as ◎ by unconspicuous for ripple, ripple few as seen is unquestionedly evaluated as 〇, ripple is significantly evaluated as ×, each drift angle is evaluated.As comprehensive grading, by the angular range becoming ◎ be more than 15 ° be evaluated as 〇 5, the angular range becoming ◎ is evaluated as 〇 4 lower than 15 ° and more than 10 °, by the angular range becoming ◎ lower than 10 ° be evaluated as △ 3, to the angular range becoming ◎ be there is not and become × angular range lower than 10 ° be evaluated as △ 2, will the angular range becoming ◎ be there is not and become × angular range be more than 10 ° be evaluated as × 1.
(evaluation of outward appearance)
Make the display of the PDP used in the evaluation of ripple become white from black gradually, when visually observing, GTG time eye-catching for the lattice of conductive film for touch screen being standardized as 5 stages evaluates.Now, by lattice with eye-catching being evaluated as " × 1 " of pullous gray scale, eye-catching or completely not eye-catching being evaluated as " 〇 5 " with subalbous gray scale, so evaluate, eye-catching with gray scale therebetween, be divided into " 〇 4 ", " △ 3 ", " △ 2 " from close to white successively to black.
(linear evaluation)
Be the square of 5cm in the touch-screen pen input length of side, visually observe foursquare each limit that confirmation now describes and whether there is broken string or disorderly (tiny is concavo-convex).Be evaluated as 〇 5 when all not breaking or be disorderly in 4 limits, any 1 limit have broken string or disorderly time be evaluated as 〇 4, any 2 limits have broken string or disorderly time be evaluated as △ 3, any 3 limits have short-term or disorderly time be evaluated as × 2, all limits all have broken string or disorderly time be evaluated as × 1.
(evaluation of sliding)
One end of strip conductive film for touch screen is fixed, the nib of the polyacetals of 0.8R is slided in the part of conductive film for touch screen middle distance fixed position 0.5mm.Nib is applied to the load of 500g, sliding speed is 5 times/second, and sliding length is 20m.After nib slides, with above-mentioned ロ レ ス タ ー GP(model MCP-T610) 4 probes (ASP) of connecting measure the sheet resistance of conductive film for touch screen, analyze the climbing relative to initial stage sheet resistance.If climbing is lower than 1.5, be evaluated as 〇, if lower than 2.0, be evaluated as △ more than 1.5, if more than 2.0, to be evaluated as ×.
From embodiment 1 ~ 13, the sheet resistance of conductive film for touch screen in the scope of 200 ~ 800 Ω/sq., such as, is applicable to the touch-screen of resistance membrane type.And because the spacing Pa of the lattice 18 of conductive layer 14 is more than 600 μm, therefore ripple fully reduces.In addition, the spacing Pa due to lattice 18 is less than 800 μm, and therefore the lattice 18 of conductive layer 14 becomes not eye-catching, and outward appearance is good.Therefore, particularly embodiment 1 ~ 13, can provide the touch-screen that writings and image shown by touch-screen etc. is clear and easy to see, observability is excellent.
In addition, from embodiment 1 ~ 13, owing to defining the transparency conducting layer being dispersed with electrically conductive microparticle being different from conductive layer 14, the linearity therefore during pen input improves.In addition, embodiment 1 ~ 11 owing to defining priming coat on supporter, but also has carried out dura mater process, and therefore sliding improves.In addition, embodiment 12 owing to not forming priming coat, therefore its be evaluated as ×.In addition, embodiment 13 is not owing to implementing dura mater process, and therefore it is evaluated as △.
On the other hand, the sheet resistance of comparative example 1 and 2 has all departed from the scope of 200 ~ 800 Ω/sq..In addition, comparative example 3 due to spacing be 500 μm (lower than 600 μm), therefore ripple is eye-catching, and it is evaluated as × 2.Relatively, comparative example 4 due to spacing be 900 μm (more than 800 μm), therefore lattice is eye-catching, and it is evaluated as × 2.Comparative example 5 ~ 7 is not owing to forming transparency conducting layer, and therefore linearity is poor, and its evaluation is × and 1.
It should be noted that, conductive film for touch screen of the present invention and manufacture method thereof are not limited to above-mentioned execution mode, under the prerequisite not departing from purport of the present invention, can adopt various formation, and this point is unquestionable.
Claims (7)
1. a photosensitive material for forming conductive film, it has silver salt emulsion layer, it is characterized in that,
The silver coating amount of described silver salt emulsion layer (16) is 1.5 ~ 3.1g/m
2,
It also possesses transparency conducting layer,
Described transparency conducting layer contains electrically conductive microparticle and adhesive, and the mass ratio of described electrically conductive microparticle and adhesive counts 1/3 ~ 2/1 with electrically conductive microparticle/adhesive,
The sheet resistance of described transparency conducting layer is 1.0 × 10
7Ω/more than sq..
2. photosensitive material for forming conductive film according to claim 1, is characterized in that,
Described silver salt emulsion layer (16) containing described electrically conductive microparticle, and is also used as described transparency conducting layer,
The content of described electrically conductive microparticle is 0.15 ~ 0.5g/m
2.
3. photosensitive material for forming conductive film according to claim 1, is characterized in that,
Described transparency conducting layer is positioned at the upper layer side of described silver salt emulsion layer (16),
The content of the described electrically conductive microparticle of described transparency conducting layer is 0.2 ~ 0.4g/m
2.
4. photosensitive material for forming conductive film according to claim 1, is characterized in that,
Described transparency conducting layer is positioned at the lower layer side of described silver salt emulsion layer (16),
The content of the described electrically conductive microparticle of described transparency conducting layer is 0.15 ~ 0.5g/m
2.
5. photosensitive material for forming conductive film according to claim 2, is characterized in that,
When described electrically conductive microparticle is spherical, average grain diameter is 0.085 ~ 0.12 μm,
When described electrically conductive microparticle is needle-like, the average axial length of major axis is 0.2 ~ 20 μm, the average axial length of minor axis is 0.01 ~ 0.02 μm.
6. a conductive material, is characterized in that,
It is by carrying out pattern exposure, development treatment and obtaining by photosensitive material for forming conductive film according to claim 1.
7. a conducting film, it has conductive layer (14) on supporter (12), it is characterized in that,
Layer beyond described conductive layer (14) or described conductive layer contains electrically conductive microparticle and adhesive,
The mass ratio of described electrically conductive microparticle and adhesive counts 1/3 ~ 2/1 with electrically conductive microparticle/adhesive,
The sheet resistance of the layer beyond described conductive layer is 1.0 × 10
7Ω/more than sq..
Applications Claiming Priority (3)
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|---|---|---|---|
| JP2008-282372 | 2008-10-31 | ||
| JP2008282372A JP5469849B2 (en) | 2008-10-31 | 2008-10-31 | Conductive film for touch panel, photosensitive material for forming conductive film, conductive material, and conductive film |
| CN2009102081159A CN101728009B (en) | 2008-10-31 | 2009-10-28 | Conductive film for touch screen, photosensitive material for forming conductive film, conductive material and conductive film thereof |
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| CN2009102081159A Division CN101728009B (en) | 2008-10-31 | 2009-10-28 | Conductive film for touch screen, photosensitive material for forming conductive film, conductive material and conductive film thereof |
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| CN103456391B true CN103456391B (en) | 2016-01-20 |
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| CN2009102081159A Expired - Fee Related CN101728009B (en) | 2008-10-31 | 2009-10-28 | Conductive film for touch screen, photosensitive material for forming conductive film, conductive material and conductive film thereof |
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| WO2011156447A1 (en) * | 2010-06-11 | 2011-12-15 | 3M Innovative Properties Company | Positional touch sensor with force measurement |
| JP2012004042A (en) * | 2010-06-18 | 2012-01-05 | Fujifilm Corp | Transparent conductive film and manufacturing method for the same |
| TWI567802B (en) * | 2010-11-19 | 2017-01-21 | 富士軟片股份有限公司 | Touch panel, method for manufacturing touch panel and conductive film |
| CN107831958A (en) | 2011-01-18 | 2018-03-23 | 富士胶片株式会社 | Touch sensing, contact panel, conductive component and conducting strip |
| WO2012099150A1 (en) * | 2011-01-18 | 2012-07-26 | 富士フイルム株式会社 | Conductive film and display apparatus provided with same |
| JP2012163933A (en) * | 2011-01-18 | 2012-08-30 | Fujifilm Corp | Conductive film and display device having the same |
| CN103329077B (en) | 2011-01-18 | 2017-03-15 | 富士胶片株式会社 | Transparent electrode plate, the method for manufacture transparent electrode plate and the capacitance type touch-control panel using the transparent electrode plate |
| US8933906B2 (en) | 2011-02-02 | 2015-01-13 | 3M Innovative Properties Company | Patterned substrates with non-linear conductor traces |
| US9736928B2 (en) | 2011-02-02 | 2017-08-15 | 3M Innovative Properties Company | Patterned substrates with darkened conductor traces |
| CN102902425B (en) * | 2011-07-28 | 2016-06-08 | 宸鸿科技(厦门)有限公司 | Capacitance type touch-control panel structure and manufacture method |
| JP5968507B2 (en) * | 2011-10-05 | 2016-08-10 | 富士フイルム株式会社 | Conductive sheet, touch panel, display device |
| KR101310585B1 (en) | 2011-11-25 | 2013-09-23 | 삼성전기주식회사 | Touch Panel |
| US9253892B2 (en) * | 2012-04-13 | 2016-02-02 | Wistron Corporation | Peripheral circuit of touch panel and manufacturing method thereof |
| JP2014513845A (en) * | 2012-04-19 | 2014-06-05 | 深▲セン▼欧菲光科技股▲フン▼有限公司 | Conductive component and preparation method thereof |
| KR101343241B1 (en) * | 2012-06-25 | 2013-12-18 | 삼성전기주식회사 | Touch panel |
| KR20140084880A (en) * | 2012-12-27 | 2014-07-07 | 삼성전기주식회사 | Touch Panel |
| JP5870945B2 (en) * | 2013-02-28 | 2016-03-01 | 三菱電機株式会社 | Touch screen, touch panel, display device and electronic device |
| CN103164100B (en) * | 2013-03-28 | 2014-08-06 | 南昌欧菲光科技有限公司 | Capacitive touch screen |
| CN103309541A (en) * | 2013-06-27 | 2013-09-18 | 袁博 | Manufacturing method for capacitance type touch screen wire circuit |
| JP2015114753A (en) * | 2013-12-10 | 2015-06-22 | 三菱電機株式会社 | Touch screen and display device including the same |
| JP6384058B2 (en) * | 2014-02-12 | 2018-09-05 | 三菱電機株式会社 | Touch screen, touch panel, display device with touch panel, and electronic device |
| JP6084585B2 (en) | 2014-03-19 | 2017-02-22 | 富士フイルム株式会社 | Manufacturing method of conductive member |
| JPWO2016056434A1 (en) | 2014-10-07 | 2017-08-17 | シャープ株式会社 | Transparent conductor, method for producing transparent conductor, and touch panel |
| JP6626759B2 (en) * | 2016-03-29 | 2019-12-25 | 富士フイルム株式会社 | Conductive film, touch panel and electronic device |
| CN110502148A (en) * | 2019-08-16 | 2019-11-26 | 芜湖伦丰电子触摸屏产业技术研究院有限公司 | A kind of touch screen preparation method |
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| CN103456391A (en) | 2013-12-18 |
| CN101728009A (en) | 2010-06-09 |
| JP5469849B2 (en) | 2014-04-16 |
| KR20100048932A (en) | 2010-05-11 |
| JP2010108878A (en) | 2010-05-13 |
| CN101728009B (en) | 2013-09-18 |
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