CN107000410A - Transparent conductive film and the touch panel with it - Google Patents
Transparent conductive film and the touch panel with it Download PDFInfo
- Publication number
- CN107000410A CN107000410A CN201680003729.1A CN201680003729A CN107000410A CN 107000410 A CN107000410 A CN 107000410A CN 201680003729 A CN201680003729 A CN 201680003729A CN 107000410 A CN107000410 A CN 107000410A
- Authority
- CN
- China
- Prior art keywords
- layer
- transparent conductive
- polyester resin
- conductive film
- support layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Human Computer Interaction (AREA)
- Laminated Bodies (AREA)
- Non-Insulated Conductors (AREA)
- Surface Treatment Of Optical Elements (AREA)
Abstract
Offer is a kind of to improve the transparent conductive film of the visible phenomenon of pattern.A kind of transparent conductive film, it is included：(A) translucency support layer；And (C) transparent conductive layer, wherein, the translucency support layer (A) includes：(1) external diameter is more than 5 μm and mean outside diameter is 5 μm~50 μm of polyester resin block (1), and (2) external diameter is 0.5 μm less than 5 μm of polyester resin block (2) less than 5 μm and mean outside diameter, the difference of the mean outside diameter of the polyester resin block (1) and the polyester resin block (2) is more than 4 μm, the transparent conductive layer (C) is direct or is arranged at across more than one layer of other layers at least one side of the translucency support layer (A), in fluoroscopy images obtained from the interarea of the support film to being only made up of the translucency support layer (A) is observed, it was observed that 500/mm2~900/mm2The polyester resin block (1), and observe 700/mm2~1100/mm2The polyester resin block (2).
Description
Technical field
The present invention relates to a kind of transparent conductive film and the touch panel with it.
Background technology
As the transparent conductive film for being equipped on touch panel, largely use in the translucency branch being made up of PET etc.
Hold film (patent document 1) obtained from the transparent conductive layer that layer superimposed layer is made up of tin indium oxide (ITO) etc..
These transparent conductive films are usually that transparent conductive layer is carried out by being further etched
Touch panel is equipped on the basis of patterning.It is known will be so to the translucency that be patterned of transparent conductive layer
In conductive film, pattern (the so-called visible phenomenon of pattern of transparent conductive layer can be told on film surface；pattern
visibility)。
There is transparent conductive in transparent conductive film obtained from so being patterned to transparent conductive layer
The region (in the present invention, sometimes referred to as " drafting department ") of layer and the region in the absence of transparent conductive layer (in the present invention, have
When be referred to as " etched part ") the different spectral transmission of display and spectral reflectance.It is believed that this spectral transmission and light splitting
The reason for difference of reflectivity is pattern visible phenomenon.
Therefore, the difference for the refractive index being conceived in these each regions, it is proposed that various to improve pattern by correcting the difference
It can be seen that the technology (patent document 1~3) of phenomenon.In addition, it is also proposed that in the transparent conductive layer patterned, pass through
It will be provided with making the reflectivity for the light for being incident in pattered region mutually approximate with the reflectivity for the light for being incident in non-patterned areas
Effect layer (being sometimes referred to as such layer " optical interference layer " in this manual) be arranged at transparent conductive layer under
Layer side and eliminate the technology (patent document 4) of the visible phenomenon of pattern.
In addition, setting the transparent conductive of hard conating on the face of operation surface side for being adjacent to translucency support layer
In film, other technical problems are used as, it is known that due to the refringence between translucency support layer and hard conating, cause on film surface
The upper phenomenon for observing interference fringe.The known interference fringe phenomenon can be by by between translucency support layer and hard conating
Refringence suppresses to be alleviated (patent document 5,6) in certain scope.
In addition, in recent years, it is also reported that the drafting department of transparent conductive film is identified out easily by heating
Come, as a result, aesthetic property is deteriorated (patent document 7).But, reason for that is not illustrated fully.
Prior art literature
Patent document
Patent document 1:Japanese Unexamined Patent Publication 8-240800 publications
Patent document 2:Japanese Unexamined Patent Publication 2002-98935 publications
Patent document 3:Japanese Unexamined Patent Publication 2003-202552 publications
Patent document 4:WO2010/114056 publications
Patent document 5:Japanese Unexamined Patent Publication 7-325201 publications
Patent document 6:Japanese Unexamined Patent Publication 7-151902 publications
Patent document 7:Japanese Unexamined Patent Publication 2012-128629 publications
The content of the invention
The technical problems to be solved by the invention
The present inventor is used as the present invention using a kind of transparent conductive film for improving the visible phenomenon of pattern is provided
Technical problem.
Technical scheme for solving technical problem
The inventors found that：In the transparent conductive film with drafting department and etched part, using in polyester
Containing light scattering effect caused by the slightly different polyester resin particle of refractive index in resin film, pattern is improved visible existing
As.Found moreover, the present inventor repeats further investigation：By the polyester in a specific way containing polyester resin particle
Resin film is set to support layer, and conductive layer is set on support layer, it is possible thereby to solve above-mentioned technical problem.The present invention is by entering
What one step was repeated research and completed, include following mode.
Item 1.
A kind of light transmitting conductive film, it is included：
(A) translucency support layer；And
(C) transparent conductive layer, wherein,
The translucency support layer (A) includes：
(1) more than 5 μm of external diameter and mean outside diameter for 5 μm~50 μm polyester resin block (1) and
(2) external diameter be less than 5 μm and mean outside diameter be 0.5 μm less than 5 μm of polyester resin block (2),
The difference of the mean outside diameter of the polyester resin block (1) and the polyester resin block (2) is more than 4 μm,
The transparent conductive layer (C) is direct or is configured at the translucency support layer across more than one layer of other layers
(A) at least one face,
The fluoroscopy images obtained from from the support film interarea being only made up of the translucency support layer (A) progress
In, it was observed that 500/mm2~900/mm2The polyester resin block (1), it was observed that it was observed that 700/mm2~1100
Individual/mm2The polyester resin block (2).
The 2. transparent conductive film as described in item 1 of item, wherein,
Hard conating (B) is direct or is configured at least the one of the translucency support layer (A) via more than one other layers
On face.
The 3. transparent conductive film as described in item 1 or 2 of item, wherein,
Priming coat (D) is configured between the translucency support layer (A) and transparent conductive layer (C).
A kind of 4. touch panels of item, it includes the transparent conductive film described in any one of item 1~3.
By using the present invention, the visible phenomenon of pattern can be improved.
Brief description of the drawings
Fig. 1 is the mode containing polyester resin block (1) and polyester resin block (2) in translucency support layer (A) that represents
The schematic diagram of one.
Fig. 2 is to represent that whole layer is configured with transparent conductive layer with adjoining each other in translucency support layer (A) one side
(C) profile of transparent conductive film of the invention.
Fig. 3 is to represent that whole layer is configured with transparent conductive layer with adjoining each other on translucency support layer (A) two sides
(C) profile of transparent conductive film of the invention.
Fig. 4 is to represent that whole layer is configured with priming coat (D) with adjoining each other successively in translucency support layer (A) one side
And the profile of the transparent conductive film of the invention of transparent conductive layer (C).
Fig. 5 is to represent that whole layer is configured with priming coat (D) with adjoining each other successively on translucency support layer (A) two sides
And the profile of the transparent conductive film of the invention of transparent conductive layer (C).
Description of symbols
1 transparent conductive film
11 translucency support layers (A)
12 transparent conductives layer (C)
13 priming coats (D)
2 polyester resin blocks (1) (big resin mass)
3 polyester resin blocks (2) (small resin mass)
Embodiment
1.Transparent conductive film
The transparent conductive film of the present invention is included：
(A) translucency support layer；And
(C) transparent conductive layer, wherein,
The translucency support layer (A) includes：
(1) more than 5 μm of external diameter and mean outside diameter for 5 μm~50 μm polyester resin block (1) and
(2) external diameter be less than 5 μm and mean outside diameter be 0.5 μm less than 5 μm of polyester resin block (2),
The difference of the mean outside diameter of the polyester resin block (1) and the polyester resin block (2) is more than 4 μm,
The transparent conductive layer (C) is direct or is configured at the translucency support layer across more than one layer of other layers
(A) at least one side,
The fluoroscopy images obtained from from the support film interarea being only made up of the translucency support layer (A) progress
In, it was observed that 500/mm2~900/mm2The polyester resin block (1), it was observed that it was observed that 700/mm2~1100
Individual/mm2The polyester resin block (2).
In the present invention, " translucency " means with the property (translucent) for passing through light.Comprising saturating in " translucency "
Bright (transparent)." translucency " refer to for example total light transmittance be more than 80%, preferably more than 85%, more preferably
More than 88% property.In the present invention, using haze meter, (Japanese electricity Se Co., Ltd. manufactures total light transmittance, trade name：
NDH-2000 or its equivalents), it is measured based on JIS-K-7105.
In the present invention, the thickness of each layer using commercially available reflection beam splitting film thickness gauge (great mound electronics, FE-3000 (trade name),
Or its equal production piece) obtain.Or, instead, commercially available infiltration type electron microscope can be used to be observed to ask
Go out.Specifically, it is along the direction perpendicular to film surface that transparent conductive film is very thin using slicer or focused ion beam etc.
Ground is cut off, and observes its section.
In the present invention, two layers of relative position in the multiple layers being configured in translucency support layer (A) one side is referred to
During relation, on the basis of translucency support layer (A), the in larger distance layer that will be started at sometimes from translucency support layer (A)
As " above " layer etc..
1.1Translucency support layer (A)
Translucency support layer refers in the present invention：In the transparent conductive film containing transparent conductive layer, performance pair
The layer for the effect that layer comprising transparent conductive layer is supported.As translucency support layer (A), it is not particularly limited, for example
In touch pad with transparent conductive film, the material for being typically used as translucency support layer can be used.
The raw material of translucency support layer (A) can be enumerated for example：It is polyester resin, polycarbonate resin, polyacrylic resin, poly-
Acetate resins, polyether resin, polymethacrylate resin, polystyrene resin, cyclic olefin polymer (COP) or cycloolefin are common
It is the vistanexes such as polymers (COC), polyimide resin, polyamide, Corvic, polyvinylidene chloride resin, poly-
Acetal resin, polyphenylene sulfide etc..Wherein, polyester resin, vistanex etc. are preferably enumerated, polyester tree is more preferably enumerated
Fat.
As the polyester resin of the raw material for translucency support layer (A), it is not particularly limited, can enumerates and for example gather to benzene
Naphthalate (PET), PEN (PEN) etc..
The thickness of translucency support layer (A) is not particularly limited, and can enumerate such as 2~300 μm of scope.From translucency
Viewpoint is set out, preferably the thinner thickness of translucency support layer (A), can enumerate such as 2~150 μm, preferably 2~100 μm, more preferably
2~75 μm, further preferred 5~50 μm, still more preferably 10~30 μm of scope.In general, translucency support layer etc.
Thickness is thinner, and the visible phenomenon of pattern is more notable, but in the transparent conductive film of the present invention, even in translucency support layer
(A) in the case that thickness is relatively thin as described above, the visible phenomenon of pattern can still be improved.
The refractive index of translucency support layer (A) is not particularly limited, such as in the case of using PET as main material, is
1.65 left and right.
Translucency support layer (A) is as illustrated in fig. 1, it is characterised in that include：
(1) external diameter be more than 5 μm and mean outside diameter be 5 μm~50 μm of polyester resin block (1) (in the present invention, sometimes
It is expressed as " polyester resin block (1) " or " big resin mass ") and
(2) external diameter be less than 5 μm and mean outside diameter be 0.5 μm less than 5 μm of polyester resin block (2) (in the present invention
In, it is sometimes denoted as " polyester resin block (2) " or " small resin mass ").It is possible thereby to expect excellent light scattering effect, Ke Yigai
The visible phenomenon of pattern during the transparent conductive film interarea of the kind observation present invention.
In addition, from the support film interarea being only made up of translucency support layer (A) progress from obtained from fluoroscopy images
In, it was observed that 500/mm2~900/mm2The polyester resin block (1), observe 700/mm2~1100/mm2's
The polyester resin block (2), it is possible thereby to expect the light scattering effect for obtaining being beyond recognition out visible this degree of phenomenon of pattern.
On this point of the improvement of the visible phenomenon of pattern, the size and density of polyester resin block be it is important, by by it
Be set to given scope, can more seek improve.
At this point, for translucency support layer (A), from the support film interarea being only made up of this layer progress
Obtained from fluoroscopy images, it was observed that 500/mm2Polyester resin block (1) above, preferred view to 650/mm2More than,
More preferably observe 700/mm2~750/mm2, further preferably observe 710/mm2~740/mm2.In addition,
The mean outside diameter of polyester resin block (1) is preferably 10 μm~30 μm, more preferably 15~25 μm.
In same point, for translucency support layer (A), the fluoroscopy images obtained from from film interarea is supported
In, polyester resin block (2) can preferably be observed 900/mm2~1000/mm2, can more preferably be observed 920/
mm2~970/mm2.In addition, the mean outside diameter of polyester resin block (2) is preferably 0.7 μm~1.2 μm.
It should be noted that the difference of the mean outside diameter of the polyester resin block (1) and the polyester resin block (2) is 4 μm
More than.In terms of the improvement of the visible phenomenon of pattern, the size and density of polyester resin block are important, by by two kinds of polyester trees
The difference of the mean outside diameter of fat block is set to particular range, can improve the visible phenomenon of pattern.The difference of mean outside diameter be preferably 15 μm with
On, more preferably more than 19 μm.
As the raw material of polyester resin block, it is not particularly limited, such as polyethylene terephthalate can be enumerated
(PET), PEN (PEN) etc..
When observing the polyester resin block in the film interarea that is only made up of translucency support layer (A), spread out using laser
Penetrate microscope and carry out.It should be noted that the mean outside diameter of polyester resin block is carried out with being determined as follows.From being enlarged into 200
Arbitrary 20 blocks of selection in field of view (0.5mm × 0.7mm) again, block obtained from measurement is observed each block
The maximum length of external diameter.It should be noted that it was observed that the quantity of block be less than in the case of 20, change field of view or sight
Examine multiple visuals field and obtain adding up to 20 measured values.Change the observation that look-out station is carried out 10 times and carried out using the above method, will
Being averaged for these measured values is set to the mean outside diameter of polyester resin block.
1.2Hard conating (B)
The transparent conductive film of the present invention can contain hard conating (B).Hard conating (B) can preferably be abutted and is configured at
At least one side of photosensitiveness support layer (A).
Hard conating (B) can configure one layer.Or configure with can also adjoining each other for more than two layers or across other layers of phase
Mutually separatedly configure.
Hard conating (B) can be configured on translucency support layer (A) two sides.
Hard conating refers to the material for playing the effect for preventing frosting from damaging in the present invention.
The adhesive ingredients of hard conating (B) is not particularly limited, and can enumerate for example：Acrylic resin, organic silicon tree
Fat, polyurethane based resin, melamine resinoid and alkyd based resin etc..Wherein, particularly preferred acrylic resin.Applying firmly
In layer (B), in addition to adhesive ingredients, other compositions, such as silica-based particle, Zirconia particles, two can also be contained
Titanium particles, aluminium oxide particles isocolloid particle etc..By the way that containing these colloidal particles, light can be assigned to hard conating (B)
Learn adjustment function.
In the present invention, as silica-based particle, it is not particularly limited, for example, can uses spherical silicon dioxide, micro-
Ground silica or broken silica etc..It should be noted that micropowder silica can by spraying glomeration and
Obtain.In addition, micropowder silica by rubbing and grinding and obtain each other by the particle of broken silica.Its
In, in terms of the visible phenomenon of pattern is improved, particularly preferred spherical silicon dioxide.
Each layer of thickness of hard conating (B) is not particularly limited, can enumerate such as 0.1~10 μm, 0.2~6 μm and
0.5~3 μm etc..In the case that more than two layers adjoins each other and configures, the aggregate thickness of the whole hard conatings (B) adjoined each other
For in above range.In the above-mentioned scope enumerated, compared with preceding numerical value, preferably posterior numerical value.
For hard conating (B) refractive index, as long as the transparent conductive film of the present invention can be as touch pad with thoroughly
Photosensitiveness conductive film is used, and is just not particularly limited, and can be enumerated such as 1.4~1.7.
As the method for configuration hard conating (B), be not particularly limited, can enumerate based on the resin component of example as described above into
Point, the coating agent containing silica-based particle etc. as filler is coated on to method on film and being solidified etc..As solid
The method of change, is not particularly limited, and can enumerate the method for example solidified using heat, utilize ultraviolet or electron beam isoreactivity
Method that energy line is solidified etc..Wherein, in terms of productivity ratio, the method solidified preferably by ultraviolet.
1.3Transparent conductive layer (C)
Transparent conductive layer (C) is direct or is configured at across more than one layer of other layers on translucency support layer (A).
Transparent conductive layer refers in the present invention：Containing conductive material, play effect conductive and through visible ray
Layer.As transparent conductive layer (C), it is not particularly limited, can uses for example generally in touch panel transparent conductive
It is used as the layer of transparent conductive layer in film.
The raw material of transparent conductive layer (C) is not particularly limited, and can enumerate for example：Indium oxide, zinc oxide, tin oxide and oxygen
Change titanium etc..As transparent conductive layer (C), have both the transparency and electric conductivity in terms of, preferably comprise in indium oxide doped with
The transparent conductive layer of the material of dopant.Transparent conductive layer (C) can be obtained by the doping dopant in indium oxide
Material constitute transparent conductive layer.As dopant, be not particularly limited, can enumerate such as tin oxide and zinc oxide, with
And their mixture etc..
Using the material of the doped stannum oxide in indium oxide as transparent conductive in the case of the raw material of layer (C),
It is preferred that in indium oxide (III) (In2O3) in doped stannum oxide (IV) (SnO2) obtained from material (tin-doped indium oxide (tin-
dopedindiumoxide)；ITO).In this case, being used as SnO2Addition, be not particularly limited, such as 1~15 can be enumerated
Weight %, preferably 2~10 weight %, more preferably 3~8 weight % etc..Alternatively, it is also possible to be no more than using the total amount in dopant
The material of other dopants is further added as transparent conductive in tin indium oxide in the range of above-mentioned number range
The raw material of layer (C).In above-mentioned, as other dopants, it is not particularly limited, can enumerates such as selenium.
Transparent conductive layer (C) can be both separately formed by any of above-mentioned various raw materials, can also be by a variety of
Constitute.
Transparent conductive layer (C) is not particularly limited, and can be crystalline solid or amorphous body or their mixture.
As the method for forming transparent conductive layer (C), the side for the process for being burnt till conductive material is preferably comprised
Method.As process for calcining, it is not particularly limited, by way of example, roller heating or the heat when such as being sputtered can be enumerated
Wind formula firing furnace, far infrared firing furnace etc..Firing temperature is not particularly limited, usually 30~250 DEG C, preferably 50~
200 DEG C, more preferably more preferably 80~180 DEG C, 100~160 DEG C.Firing time is preferably 3 minutes~180 minutes,
More preferably 5 minutes~120 minutes, more preferably 10 minutes~90 minutes.As the atmosphere burnt till, it can enumerate true
Under sky, inert gas, oxygen or the hydrogeneous nitrogen such as air, nitrogen or argon etc. or combination two or more in these.By inciting somebody to action
Conductive material is burnt till, and can promote the crystallization of conductive material.
The thickness of transparent conductive layer (C) is not particularly limited, usually 15~30nm.The thickness of transparent conductive layer (C)
Degree be less than 20nm when, can obtain improve transmissivity and reduce patterning after transparent conductive layer pattern it is visible the advantages of, because
This is preferred.In this case, as the thickness of transparent conductive layer, 5~19nm, 12~19nm and 15~19nm can be enumerated.On a left side
During the illustration of row is enumerated, compared with foregoing numerical value, in terms of electric conductivity and/or the transparency, preferably in rear numerical value.
The method for configuring transparent conductive layer (C) can be any of wet type and dry type, be not particularly limited.As with
The concrete example of the method for transparent conductive layer (C) is put, can be enumerated for example：Sputtering method, vacuum vapour deposition, ion plating method, CVD
And pulsed laser deposition etc..
1.4Priming coat (D)
The transparent conductive film of the present invention can further translucency support layer (A) and transparent conductive layer (C) it
Between contain at least one layer of priming coat (D).Transparent conductive layer (B) can be adjacent to priming coat (D) and configure.
Fig. 4 represents an embodiment of the transparent conductive film of the present invention.In which, in translucency support layer
(A) be configured directly with priming coat (D) in one side, transparent conductive layer (C) be directly configured at priming coat (D) with translucency branch
On the face for holding the opposite side of layer (A).
Fig. 5 represents an embodiment of the transparent conductive film of the present invention.In which, translucency support layer (A)
Two faces possess identical composition, specifically, be configured directly with priming coat (D) on respective face, transparent conductive layer
(C) directly it is configured on the face of side opposite with translucency support layer (A) of priming coat (D).
The raw material of priming coat (D) is not particularly limited, for example, can have dielectricity.As priming coat (D) raw material, do not have
It is particularly limited to, can enumerates for example：Silica, silicon nitride, silicon oxynitride, carborundum, silicon alkoxide, alkylsiloxane and its condensation
Thing, polysiloxanes, silsesquioxane, polysilazane and acrylic acid silica composite etc..Priming coat (D) both can be by wherein
It is any to be separately formed, it can also be made up of a variety of.As priming coat (D), preferably comprise selected from polysilazane, acrylic acid dioxy
SiClx compound and SiOx1 kind of light transmissible substrate layer in (x=1.0~2.0).Priming coat (D) can be comprising selected from poly-
Silazane, acrylic acid silica composite and SiOx1 kind of light transmissible substrate layer in (x=1.0~2.0).It is used as primary coat
Layer (D), preferably comprises SiOxThe light transmissible substrate layer of (x=1.0~2.0).Priming coat (D) can be by SiOx(x=1.0~
2.0) the light transmissible substrate layer constituted.Hereinafter, for example sometimes will be by SiOxThe light transmissible substrate layer letter that (x=1.0~2.0) are constituted
Referred to as SiOxLayer.
Priming coat (D) can configure one layer.Or can also adjoin each other for more than two layers or be spaced from each other across other layers
And configure.Priming coat (D) adjoins each other and configured for preferably more than two layers.As the example of the embodiment of this mode, it can arrange
Citing is such as：Adjacent SiO2Layer and by SiOxLayer constitute lamination (stacking) and, adjacent SiO2Layer and by SiOxNyLayer
The lamination of composition.For example in the case that two layers adjoins each other and configures, SiO2Layer and SiOxThe order of layer is arbitrary, but preferably
In translucency support layer (A) side, configuration is by SiO2Composition light transmissible substrate layer (C-1), transparent conductive layer (B) side configuration
By SiOxThe light transmissible substrate layer (C-2) that (x=1.0~2.0) are constituted.
As each layer of thickness of priming coat (D), it is not particularly limited, can enumerates such as 15~60nm.Two layers with
On adjoin each other and in the case of configuring, the aggregate thickness of the whole priming coats (D) adjoined each other is in above range.
For priming coat (D) refractive index, as long as the transparent conductive film of the present invention can be used as touch panel
Transparent conductive film is used, and is just not particularly limited, and such as preferably 1.4~1.5.
As the method for configuring priming coat (D), it can be any of wet type and dry type, be not particularly limited, make
For wet type, it can enumerate such as the method for coating sol-gel method or micro-dispersed liquid or colloidal solution.
As the method for configuration priming coat (D), as dry type, it can enumerate for example by sputtering method, ion plating method, vacuum
Vapour deposition method and pulsed laser deposition are stacked on method on adjacent layer etc..
1.5Other layers (E)
The transparent conductive film of the present invention is in translucency support layer (A) at least one side except transparent conductive layer (C)
Outside, can further it configure in hard conating (B), priming coat (D) and at least one kind of other layers (E) different from these
At least one kind of layer.
As all equal different other layers of any layer from (A)~(D), it is not particularly limited, such as adhesive linkage can be enumerated
Deng.
Adhesive linkage refers to that configuration is adjoined each other, matched somebody with somebody in order to which two interlayer is mutually bonded between the two layers and with this two layers
The layer put.As adhesive linkage, it is not particularly limited, for example, can uses and generally be used in touch panel with transparent conductive film
Make the material of adhesive linkage.Adhesive linkage can be both separately formed by any of which, can also be made up of a variety of.
1.6The purposes of the transparent conductive film of the present invention
The transparent conductive film of the present invention is preferred for the manufacture of touch panel.
For manufacturing the transparent conductive film of resistive film mode touch panel in general surface resistivity (sheet resistance)
Need for 250~1,000 Ω/sq or so.On the other hand, it is general for manufacturing the transparent conductive film of capacitive touch panel
For surface resistivity low person advantageously.The resistivity of the transparent conductive film of the present invention has been lowered, thus it is preferred to
For manufacturing capacitive touch panel.Details on capacitive touch panel is as illustrated by 2. projects.
2.The capacitive touch panel of the present invention
The capacitive touch panel of the present invention contains the transparent conductive film of the present invention, and it is further contained as needed
Its part is formed.
As the specific configuration example of the capacitive touch panel of the present invention, the composition that can be listed below.It should be noted that
By protective layer (1) side towards operation screen side, glass (5) side towards using in the way of with operation screen opposite side.
(1) protective layer
(2) transparent conductive film (Y direction) of the invention
(3) insulating barrier
(4) transparent conductive film (X-direction) of the invention
(5) glass
The capacitive touch panel of the present invention is not particularly limited, for example can be by will be above-mentioned according to usual way
(1)~(5) and other component combinations as needed are manufactured.
3.The manufacture method of the transparent conductive film of the present invention
In the manufacture method of the transparent conductive film of the present invention, the process of each layer is configured referring to respective layer
Explanation.
The manufacture method of the transparent conductive film of the present invention can include following process：In translucency support layer (A)
In at least one side, configuration transparent conductive layer (C), in addition, being respectively configured selected from hard conating (B), priming coat (D) and with them not
At least one kind of layer in same at least one kind of other layers (F).
For example, can be successively configured in translucency support layer (A) at least one side from translucency support layer (A) side,
But the order of configuration is not particularly limited.For example, most starting on a face of the layer beyond translucency support layer (A) to match somebody with somebody
Put other layers.Or can be, on the one hand, obtain a kind by configuring layer of more than two kinds in a mutually adjacent manner and be combined
Layer, then or at the same time, on the other hand obtains a kind likewise by layer of more than two kinds is configured in a mutually adjacent manner
Composite bed, is configuring above-mentioned 2 kinds of composite beds in a mutually adjacent manner.
Embodiment
Hereinafter, embodiment is enumerated, the present invention is illustrated in further detail, but the present invention is not limited to these implementations
Example.
1.Embodiment and comparative example
1.0The preparation of pet resin block
(crushing of pet resin particle)
Size 1mm polyethylene terephthalate particle 10g is devoted in liquid nitrogen 500ml, taken after 5 minutes
Go out.Then, crushed using ball mill.The external diameter of obtained resin mass is 1~50 μm or so.Obtained resin mass is thin
Point, it is classified respectively.
(being classified using Eddy flow type screening plant)
By obtained resin mass (external diameter：1~50 μm) screened with the micro powder screen of 19 μm of mesh, external diameter is obtained more than 19
μm and less than 50 μm of resin mass after, screened with 21 μm of micro powder screen of mesh, it is 20 μm of resin to obtain mean outside diameter
Block.
By obtained resin mass (external diameter：1~50 μm) screened with 3 μm of micro powder screens of mesh, obtain external diameter more than 3 μm and
After less than 50 μm of resin mass, screened with 5 μm of micro powder screens of mesh, obtain the resin mass that mean outside diameter is 4 μm.
By obtained resin mass (external diameter：1~50 μm) screened with 4 μm of micro powder screens of mesh, obtain external diameter more than 4 μm and
After less than 50 μm of resin mass, screened with 6 μm of micro powder screens of mesh, obtain the resin mass that mean outside diameter is 5 μm.
By obtained resin mass (external diameter：1~50 μm) screened with 9 μm of micro powder screens of mesh, obtain external diameter more than 9 μm and
After less than 50 μm of resin mass, screened with 11 μm of micro powder screens of mesh, obtain the resin mass that mean outside diameter is 10 μm.
By obtained resin mass (external diameter：1~50 μm) screened with 11 μm of micro powder screens of mesh, external diameter is obtained more than 11 μm
And after less than 50 μm of resin mass, screened with 13 μm of micro powder screens of mesh, obtain the resin mass that mean outside diameter is 12 μm.
By obtained resin mass (external diameter：1~50 μm) screened with 15 μm of micro powder screens of mesh, external diameter is obtained more than 15 μm
And after less than 50 μm of resin mass, screened with 17 μm of micro powder screens of mesh, obtain the resin mass that mean outside diameter is 16 μm.
By obtained resin mass (external diameter：1~50 μm) screened with the knitmesh of 38 μm of mesh, external diameter is obtained more than 38 μm and 50
After resin mass below μm, screened with 42 μm of knitmesh of mesh, obtain the resin mass that mean outside diameter is 40 μm.
1.1The preparation of hard painting material
In the urethane acrylate oligomer containing photopolymerizer, (Nippon Kayaku K. K manufactures, trade name：
KAYANOVA FOP4000) in add by toluene and methyl ethyl ketone (MEK) with 5:It is mixed that the ratio of 5 (weight ratios) is mixed
Bonding solvent, prepares the hard painting material (solid component concentration of liquid：30 weight %).
1.2The making of hard coat film
Using extruder, add big described in table 1~5 into polyethylene terephthalate (PET) resin particle
Small different polyester resin block (big resin mass and small resin mass) is simultaneously kneaded, by 23 μm of thickness, 50 μm of thickness or thickness
200 μm polyethylene terephthalate (PET) film is formed.By obtained polyethylene terephthalate (PET)
Film is used as support layer.After the one side of PET film carries out sided corona treatment, the hard painting material of liquid is applied using bar coater, is used
Its coated film was thermally dried by drying oven under conditions of 100 DEG C × 1 minute.Then, by being applied relative to dried
Applying film irradiation ultraviolet radiation (exposure：300mJ/cm2), the hard conating of about 1 μm of thickness is set on a pet film.
Same operation is also implemented to another face of PET film, thus obtain two sides set about 1 μm of thickness hard conating and
Into hard coat film.In addition, on embodiment 60~62, PET resin particle is changed into PEN, COP, COC, in addition, equally
Ground makes hard coat film.
1.3The film forming of optical adjustment layer
1.3.1The film forming of high refractive index layer (high refracting layer)
On one of obtained hard coat film, the parts by weight of zirconium oxide 16, polyurethane propylene using average grain diameter for 30nm
(Arakawa Chemical Industries, Ltd. manufactures acid esters oligomer, trade name：BEAMSET575)：5 parts by weight, Photoepolymerizationinitiater initiater
(Ciba Specialty Chemicals Co., Ltd. manufactures, trade name：IRGACURE 184)：3 parts by weight, by methyl tert-butyl
Ketone (MIBK) and methyl ethyl ketone (MEK) are with 5:Mixed solvent (the hereinafter referred to as MIBK/ that the ratio of 5 (weight ratios) is mixed
MEK mixed solvents) prepare liquid high refractive index layer material (solid component concentration：5 weight %).Then, with 1.2 hard coat films
Making in the method that carries out similarly operate, the hard conating of about 1 μm of thickness is set.
1.3.2The film forming of low-index layer (forming low-refractive-index layer)
Film forming is carried out in optical adjustment layer by reactive sputtering using the sputtering target material being made up of Si (boron doping).
Specifically, by intracavitary vacuum exhaust to as 5 × 10-4After below Pa, with 2:1 input Ar gases and O2Gas, by intracavitary
Pressure is set to 0.2Pa, implements sputtering.The refractive index of obtained film is 1.49, and thickness is 50nm.
1.4The film forming of transparent conductive layer
Will be by indium oxide：95 weight % and tin oxide：The sintered material that 5 weight % are constituted is used as target, passes through DC magnetic
The transparency conducting layer of keyholed back plate sputtering method formation covering low-index layer entire surface.Specifically, by intracavitary vacuum exhaust to as 5
×10-4After below Pa, imported in the intracavitary by Ar gases：95% and carrier of oxygen：5% mixed gas constituted, by intracavitary
Pressure is set to 0.2~0.3Pa, implements sputtering.In addition, the thickness of the transparency conducting layer to finally give is real in the way of turning into 20nm
Apply sputtering.Sheet resistance values after obtained film is heat-treated 1 hour at 150 DEG C are 150 Ω/.
2.Evaluate
To the transparent conductive film made in each embodiment and each comparative example, the degree of the visible phenomenon of evaluation pattern generating will
Evaluation result is shown in table 1~5.It should be noted that the visible phenomenon of pattern is carried out as follows evaluation.
Transparent conductive film is cut into 5cm square, to 200 μm of lines of width and resisting for space on transparent conductive layer
Erosion agent pattern is exposed development, is impregnated in ITO etching solutions (manufacture of Northeast chemistry society, trade name " ITO-06N ") 1 minute, punching
Wash and remove Resist patterns after drying, obtain the light transmitting conductive film with the transparent conductive layer patterned.
It is being placed with the transparent conductive that placement is patterned on the desk as the incandescent lamp (color of sunshine) of light source
Property film, the configuration mode of the transparent conductive film after the white electric light of adjustment and patterning causes the transparent conductive after patterning
Layer side is located at the underface of incandescent lamp.It is transparent conductive from 45 degree of angle from the surface relative to transparent conductive film
Property film, observe from white electric light front receive light reflected on transparent conductive film when white electric light it is clearly anti-
Projection picture and from relative to transparent conductive film surface for 45 degree angle progress from when on transparent conductive film
The reflected light of the white electric light reflected is oozed out.It will be observed that clearly reflected image (front from white electric light is anti-
Penetrate the image of the white electric light of the reflected light formation come) and it was observed that the reflected light of white electric light ooze out (from relative to saturating
The surface of photosensitiveness conductive film receives the light of white electric light and the transparent conductive of reflected light from front for 45 degree of angle observation
Property film when can be seen reflected light formation white electric light image) be compared, judged with following metewand.
The metewand of patterned appearance is as described below.
◎ can only see clearly reflected image, even if entering from the surface relative to light transmitting conductive film for 45 degree of angle
Row observation, does not also see oozing out for reflected light formation around the image of the white electric light of reflected light formation.
Zero observes clearly reflected image, but from the surface relative to light transmitting conductive film for from 45 degree of angle when
Somewhat see oozing out for reflected light formation around the image of the white electric light of reflected light formation.
△ observes clearly reflected image, but from the surface relative to light transmitting conductive film for from 45 degree of angle when
The white electric light of reflected light formation image it is whole around observe that what reflected light formed oozes out.
× clearly reflected image is not observed, and be 45 degree of angle from the surface relative to light transmitting conductive film
Significantly see oozing out for reflected light formation around the image of the white electric light of reflected light formation during observation.
It should be noted that having recorded the number for the resin mass that measurement is observed from PET film interarea in table 1~5 and having obtained
Result (be scaled every mm2).The measurement using laser diffraction microscope (multiplying power is 200 times, field area be 0.5mm ×
0.7mm) come carry out.
To the transparent conductive film made in each embodiment and each comparative example, its outward appearance of naked-eye observation evaluates surface
Granular sense.Show the result in 1~table of table 5.It should be noted that granular sense is evaluated as follows.
Zero surface does not have coarse, does not see granular reflection.
× it can be seen that there is coarse caused granular reflection in surface.
Claims (4)
1. a kind of light transmitting conductive film, it is included：
(A) translucency support layer；And
(C) transparent conductive layer, wherein,
The translucency support layer (A) includes：
(1) external diameter be more than 5 μm and mean outside diameter be 5 μm~50 μm polyester resin block (1) and (2) external diameter less than 5 μm and
Mean outside diameter be 0.5 μm less than 5 μm of polyester resin block (2),
The difference of the mean outside diameter of the polyester resin block (1) and the polyester resin block (2) is more than 4 μm,
The transparent conductive layer (C) is direct or is arranged at the translucency support layer (A) across more than one layer of other layers
In at least one side,
In fluoroscopy images obtained from the interarea of the support film to being only made up of the translucency support layer (A) is observed,
It was observed that 500/mm2~900/mm2The polyester resin block (1), and observe 700/mm2~1100/mm2's
The polyester resin block (2).
2. light transmitting conductive film as claimed in claim 1, wherein,
Hard conating (B) is direct or is arranged at across more than one layer of other layers at least one side of the translucency support layer (A).
3. light transmitting conductive film as claimed in claim 1 or 2, wherein,
Priming coat (D) is arranged between the translucency support layer (A) and transparent conductive layer (C).
4. a kind of touch panel, it includes light transmitting conductive film according to any one of claims 1 to 3.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-058685 | 2015-03-20 | ||
| JP2015058685A JP5860558B1 (en) | 2015-03-20 | 2015-03-20 | Light transmissive conductive film and touch panel having the same |
| PCT/JP2016/054441 WO2016152325A1 (en) | 2015-03-20 | 2016-02-16 | Light-transmitting electroconductive film and touch panel having same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107000410A true CN107000410A (en) | 2017-08-01 |
| CN107000410B CN107000410B (en) | 2019-08-20 |
Family
ID=55305469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680003729.1A Active CN107000410B (en) | 2015-03-20 | 2016-02-16 | Transparent conductive film and touch panel with it |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5860558B1 (en) |
| CN (1) | CN107000410B (en) |
| WO (1) | WO2016152325A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504047A (en) * | 2018-05-16 | 2019-11-26 | 南昌欧菲显示科技有限公司 | Transparent conductive film and touch screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1643405A (en) * | 2002-03-29 | 2005-07-20 | 东丽株式会社 | Laminated film, filter for display, and display |
| CN1795516A (en) * | 2003-05-26 | 2006-06-28 | 日本曹达株式会社 | Light-transmitting substrate with transparent electroconductive film |
| JP2012134085A (en) * | 2010-12-24 | 2012-07-12 | Nitto Denko Corp | Transparent conductive film, and method for manufacturing the same |
| CN103858182A (en) * | 2012-03-23 | 2014-06-11 | 积水纳米涂层科技有限公司 | Light-transmitting electroconductive film, method for producing same, and use therefor |
| CN104011806A (en) * | 2011-12-27 | 2014-08-27 | 积水化学工业株式会社 | Light Transmissive Conductive Film And Capacitance-Type Touch Panel Using Same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008062538A (en) * | 2006-09-08 | 2008-03-21 | Nakajima Kogyo Kk | Glare shielding film |
-
2015
- 2015-03-20 JP JP2015058685A patent/JP5860558B1/en active Active
-
2016
- 2016-02-16 WO PCT/JP2016/054441 patent/WO2016152325A1/en active Application Filing
- 2016-02-16 CN CN201680003729.1A patent/CN107000410B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1643405A (en) * | 2002-03-29 | 2005-07-20 | 东丽株式会社 | Laminated film, filter for display, and display |
| CN1795516A (en) * | 2003-05-26 | 2006-06-28 | 日本曹达株式会社 | Light-transmitting substrate with transparent electroconductive film |
| JP2012134085A (en) * | 2010-12-24 | 2012-07-12 | Nitto Denko Corp | Transparent conductive film, and method for manufacturing the same |
| CN104011806A (en) * | 2011-12-27 | 2014-08-27 | 积水化学工业株式会社 | Light Transmissive Conductive Film And Capacitance-Type Touch Panel Using Same |
| CN103858182A (en) * | 2012-03-23 | 2014-06-11 | 积水纳米涂层科技有限公司 | Light-transmitting electroconductive film, method for producing same, and use therefor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504047A (en) * | 2018-05-16 | 2019-11-26 | 南昌欧菲显示科技有限公司 | Transparent conductive film and touch screen |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016152325A1 (en) | 2016-09-29 |
| CN107000410B (en) | 2019-08-20 |
| JP2016177677A (en) | 2016-10-06 |
| JP5860558B1 (en) | 2016-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6802789B2 (en) | Anti-reflective coated glass articles | |
| KR102292166B1 (en) | A pane with an electrically conductive coating that reduces the visibility of fingerprints | |
| JP5549216B2 (en) | Transparent conductive laminate, method for producing the same, and touch panel | |
| CN106575005B (en) | Infra Red reflective films | |
| EA023984B1 (en) | Transluscent conductive substrate for organic light emitting devices | |
| KR101200724B1 (en) | A transparent subtrate with anti-reflection functionality | |
| CN102803175A (en) | Substrate provided with a stack having thermal properties, in particular for manufacturing heated glass | |
| KR20150087358A (en) | Substrate equipped with a multilayer comprising a partial metal film, glazing unit and process | |
| JP2008247739A5 (en) | ||
| CN105873755A (en) | Optical film exhibiting improved light to solar gain heat ratio | |
| US10175397B2 (en) | Optical film including an infrared absorption layer | |
| CN105849597A (en) | Composite film having superior optical and solar performance | |
| KR20180116566A (en) | Lamination system | |
| CN106794666A (en) | Light transmitting conductive film, its film roll and the touch panel with it | |
| CN104718582B (en) | Stack membrane and its film roll and can light transmitting conductive film therefrom and utilize its touch pad | |
| WO2015152184A1 (en) | Optically transparent conductive film and touch panel comprising same | |
| CN107000410B (en) | Transparent conductive film and touch panel with it | |
| CN208038316U (en) | Glass cover-plate and touch screen | |
| TWI544500B (en) | Transparent conductive film and electrostatic capacity type touch panel having the same, and a method for manufacturing a translucent conductive film | |
| KR101565855B1 (en) | Transparent conductive optical sheet having high invisibility of pattern | |
| TW201728548A (en) | Ultraviolet light-resistant articles and methods for making the same | |
| JP2019530591A (en) | Functional building materials for window doors including low radiation coating and low radiation coating | |
| JP6475461B2 (en) | Light transmissive conductive film | |
| JP2014186279A (en) | Light-transmitting conductive film and touch panel having the same | |
| JP2016177771A (en) | Light transmissive conductive film and touch panel having the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |