CN210091128U - Conductive film and touch device - Google Patents
Conductive film and touch device Download PDFInfo
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- CN210091128U CN210091128U CN201920035881.9U CN201920035881U CN210091128U CN 210091128 U CN210091128 U CN 210091128U CN 201920035881 U CN201920035881 U CN 201920035881U CN 210091128 U CN210091128 U CN 210091128U
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Abstract
The utility model provides a conductive film and touch device relates to electron technical field. The conductive film includes: a base material layer and a color tone adjusting layer which are laminated; wherein, the tone adjusting layer comprises at least one color paste for adjusting tone. The embodiment of the utility model discloses a through set up the tone adjusting layer including at least one kind of mill base in the conducting film, not only make the conducting film can present the colour that the user was allowed, can not influence the haze of conducting film moreover, furtherly can not increase the haze of conducting film even.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to a conductive film and touch device.
Background
At present, silver nanowire conducting films are widely applied to the fields of flexible touch screens, large-size touch screens and the like as component parts.
The silver nanowire has the characteristics of high length-diameter ratio (more than 1000), excellent conductivity, high transparency, bendability, low resistivity and the like, and can be applied to a conductive film as a substitute material of Indium Tin Oxide (ITO). However, the bright contrast between silver nanowire-based conductive films that yellow in color and conventional ITO-based conductive films that appear blue results in a user's unacceptable yellow appearance when replacing ITO-based conductive films with silver nanowire-based conductive films.
Therefore, how to adjust the color tone of the conductive film is a problem to be solved.
SUMMERY OF THE UTILITY MODEL
In view of the above, embodiments of the present invention are directed to a conductive film and a touch device, so as to solve the problem of adjusting the color tone of the conductive film in the prior art.
An aspect of the present invention provides a conductive film, including: a base material layer and a color tone adjusting layer which are laminated; wherein, the tone adjusting layer comprises at least one color paste for adjusting tone.
In one embodiment of the present invention, the conductive film further comprises a conductive layer; wherein, the tone adjusting layer is arranged between the conductive layer and the base material layer.
In an embodiment of the present invention, the color tone adjusting layer includes a purple color paste and a blue color paste.
In one embodiment of the present invention, the color tone adjusting layer is prepared by coating a dilute solution of an adhesive on the surface of the base material layer; the diluent of the adhesive comprises purple color paste and blue color paste, wherein the mass percent of the purple color paste in the diluent of the adhesive is between 0.001 and 0.5 percent, and the mass percent of the blue color paste in the diluent of the adhesive is between 0.001 and 0.5 percent.
In an embodiment of the present invention, the mass percentage of the purple color paste in the diluent of the binder is 0.03%, and the mass percentage of the blue color paste in the diluent of the binder is 0.03%, 0.05% or 0.07%.
In one embodiment of the present invention, the conductive film further comprises a conductive layer; wherein the base material layer is provided between the color tone adjusting layer and the conductive layer.
In one embodiment of the present invention, the color tone adjusting layer includes a violet color paste.
In one embodiment of the present invention, the color tone adjusting layer is prepared by coating a dilute solution of an adhesive on the surface of the base material layer; wherein the diluent of the adhesive comprises purple color paste, and the mass percentage of the purple color paste in the diluent of the adhesive is between 0.001 and 0.5 percent.
In an embodiment of the present invention, the mass percentage of the purple color paste in the diluent of the binder is 0.05%, 0.075%, or 0.1%.
In one embodiment of the present invention, the conductive film further comprises a conductive layer; wherein the conductive layer is provided between the base material layer and the color tone adjusting layer.
In an embodiment of the present invention, the color tone adjusting layer includes a purple color paste and a blue color paste.
In one embodiment of the present invention, the color tone adjusting layer is prepared by coating a dilute solution of an adhesive on the surface of the conductive layer; the diluent of the adhesive comprises purple color paste and blue color paste, wherein the mass percent of the purple color paste in the diluent of the adhesive is between 0.001 and 0.5 percent, and the mass percent of the blue color paste in the diluent of the adhesive is between 0.001 and 0.5 percent.
In one embodiment of the utility model, the mass percent of the purple color paste in the diluent of the binder is 0.01 percent, and the mass percent of the blue color paste in the diluent of the binder is 0.006 percent; or the mass percent of the purple color paste in the diluent of the adhesive is 0.015 percent, and the mass percent of the blue color paste in the diluent of the adhesive is 0.025 percent; or the mass percent of the purple color paste in the diluent of the adhesive is 0.03 percent, and the mass percent of the blue color paste in the diluent of the adhesive is 0.05 percent.
In one embodiment of the present invention, the color tone adjusting layer further comprises silver nanowires for conducting electricity.
In one embodiment of the present invention, the coating is applied in a manner including roll-to-roll coating.
In one embodiment of the present invention, the adhesive includes at least one of acrylate, epoxy, polyurethane, polyethylene glycol, carboxymethyl cellulose, hydroxypropyl cellulose, cellulose acetate, and ethylene oxide.
In one embodiment of the present invention, the diluting agent used for the diluent of the adhesive includes at least one of water, ethanol, isopropanol, n-butanol, acetone, butanone, cyclopentanone, propylene glycol methyl ether, propylene glycol ethyl ether, and ethyl acetate.
In one embodiment of the present invention, the diluent of the binder is a diluent having a mass percentage of 80% to 99.9% in the diluent of the binder.
In one embodiment of the present invention, the color paste comprises a pigment, wherein the pigment comprises at least one of an organic pigment, an inorganic pigment, and a metal oxide pigment.
In one embodiment of the present invention, the light resistance of the pigment reaches 8 levels of the national standard GB 1710-79; and/or the weather resistance of the pigment reaches 5 grades of the national standard GB 250-; and/or the acid resistance of the pigment reaches 5 grades of the national standard GB 5211.6-85; and/or the alkali resistance of the pigment reaches 5 grades of the national standard GB 5211.7-85.
In one embodiment of the present invention, the pigment is surface treated with an active agent.
In one embodiment of the present invention, the pigment is further subjected to a fine grinding and dispersion process.
In one embodiment of the present invention, the color paste further comprises a dispersion medium in which the pigment is dispersed; wherein the dispersion medium comprises an aqueous medium, an oily medium or a resin system medium.
The utility model discloses another aspect provides a preparation method of conducting film, include: adding at least one color paste for adjusting color tone into a diluent of the adhesive; and coating the diluted solution of the adhesive on the surface of the substrate layer; or, a diluent of the adhesive is coated on the surface of the conductive layer, wherein the surface of the conductive layer which is not coated with the diluent of the adhesive is provided with a substrate layer.
In one embodiment of the present invention, the at least one color paste for adjusting color tone includes a violet color paste and a blue color paste; wherein, the mass percent of the purple color paste in the diluent of the adhesive is between 0.001 and 0.5 percent, and the mass percent of the blue color paste in the diluent of the adhesive is between 0.001 and 0.5 percent.
In one embodiment of the present invention, the diluent of the adhesive is coated on the surface of the substrate layer, and the at least one color paste for adjusting the color tone comprises a purple color paste; wherein, the mass percentage of the purple color paste in the diluent of the adhesive is between 0.001 and 0.5 percent.
In one embodiment of the present invention, the coating is applied in a manner including roll-to-roll coating.
Another aspect of the present invention provides a touch device, including the conductive film according to any one of the above embodiments.
The embodiment of the utility model discloses a through set up the tone adjusting layer including at least one kind of mill base in the conducting film, not only make the conducting film can present the colour that the user was allowed, can not influence the haze of conducting film moreover, furtherly can not increase the haze of conducting film even.
Drawings
Fig. 1 is a schematic structural view of a conductive film according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a conductive film according to still another embodiment of the present invention.
FIG. 3 is an ultraviolet-visible light (UV-Vis) absorption spectrum of a violet color paste.
Fig. 4 is a schematic structural view of a conductive film according to another embodiment of the present invention.
Fig. 5 is a schematic structural view of a conductive film according to still another embodiment of the present invention.
Fig. 6 is a schematic flow chart of a method of manufacturing a conductive film according to an embodiment of the present invention.
The reference numbers in the above figures are as follows: a color tone adjusting layer 1, a conductive layer 2, a base material layer 3, and a protective layer 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
Fig. 1 is a schematic structural view of a conductive film according to an embodiment of the present invention.
As shown in fig. 1, the conductive film may include: a base material layer 3 and a color tone adjusting layer 1 which are stacked; wherein, the tone adjusting layer 1 comprises at least one color paste for adjusting the tone.
Specifically, the conductive film may be a transparent conductive film for realizing functions of touch control, heat ray reflection, electromagnetic wave shielding, static resistance, fog prevention, and the like, and is applied to a touch display device such as a display, a mobile phone, a tablet computer, an Augmented Reality (AR) display device, a Virtual Reality (VR) display device, and the like, wherein a conductive material used for realizing a conductive function, that is, the conductive layer 2, may include Cu, Ag, Ni, and the like, and a specific type and form of the conductive material are not limited herein.
The substrate layer 3 may serve as a base for carrying other film layers. Specifically, a flexible material such as Polyethylene naphthalate (PEN), Polyethylene terephthalate (PET), polyethersulfone resin (PES), flexible glass, polymethyl methacrylate (PMMA), Polycarbonate (PC), cycloolefin Polymer (COP), Colorless Polyimide (PI), or the like may be used for the substrate layer 3, so that the conductive film may be used for a flexible display device or a general display device; the substrate layer 3 may also be made of a non-flexible material such as glass or the like so that the conductive film can be used for a general display device. Here, the specific material used for the base material layer 3 is not limited.
The color tone adjusting layer 1 can be a film layer for adjusting the color tone of the conductive film, wherein the color paste is uniformly dispersed in the color tone adjusting layer 1 to play a role in adjusting the color tone of the conductive film.
The color tone adjusting layer 1 may be a single layer or a film layer having other functions, for example, the color tone adjusting layer 1 may also have an adhesive function in addition to the function of adjusting the color tone, so that the conductive film may be adhered and fixed to other members of the display device, and the function of whether the color tone adjusting layer 1 has other functional layers is not particularly limited. In addition, the tone adjusting layer 1 has other functions to effectively reduce the thickness of the conductive film, thereby being beneficial to reducing the thickness of a touch device using the conductive film and meeting the light and thin market demand.
It should be understood that if the color tone adjusting layer 1 only functions to adjust color tone, the conductive film may include other film layers, such as the protective layer 4, the adhesive layer, etc., in addition to the base material layer 3 and the color tone adjusting layer 1, and there is no limitation on the kind and number of film layers included in the conductive film.
In addition, the thickness of each layer in the conductive film may be set according to design requirements, for example, when the conductive film is applied to an ultra-thin display device, the thickness of each layer in the conductive film may be designed to be thinner, and when the application scenario of the conductive film is not limited, the thickness of each layer in the conductive film may be designed according to the convention, where the thickness of each layer is not specifically limited.
For example, in the CIELAB standard, L represents the brightness of a color, a represents the red-green value of the color, b represents the yellow-blue value of the color, and if it is desired that the conductive film exhibit red color, it is necessary to increase a, and at least one dye of the red family may be added to the conductive film so that the conductive film can be adjusted to exhibit red color; further alternatively, as described in the background art, since the conductive film based on silver nanowires is yellow and b is required to be decreased in order to make the conductive film appear blue which is easily acceptable to users, at least one kind of blue dye may be added to the conductive film according to the RGB additive color mixing principle, so that the conductive film can be adjusted to appear blue.
Of course, when the type and/or amount of the dye added in the conductive film is inappropriate, the haze of the conductive film may increase, in other words, the haze of the conductive film is affected, so that the haze of the conductive film is beyond the allowable range, and thus the application of the conductive film in a display device is not facilitated.
Therefore, the embodiment of the present invention provides a conductive film, which not only can display the color desired by the user, but also can not affect the haze of the conductive film by providing the tone adjusting layer 1 comprising at least one color paste in the conductive film, and further, can not even increase the haze of the conductive film.
For convenience of description, the specific structure of the conductive film, the amount and type of the color paste, etc. will be further described below by taking the example of reducing the b value of the conductive film based on the silver nanowires (even if the conductive film exhibits a color easily accepted by users).
Fig. 2 is a schematic structural view of a conductive film according to still another embodiment of the present invention.
In another embodiment of the present invention, as shown in fig. 2, the conductive film may further include a conductive layer 2; the color tone adjusting layer 1 is provided between the conductive layer 2 and the base material layer 3.
Specifically, the conductive film may be a silver nanowire-based conductive film so that the conductive film based on silver nanowires after color adjustment is acceptable to users, wherein the base material layer 3 may be in contact with the color adjustment layer 1, and the color adjustment layer 1 may be in contact with the conductive layer 2. Here, the color tone adjusting layer 1 can also enhance the adhesion strength between the conductive layer 2 and the base material layer 3 in addition to the function of adjusting the color tone.
Further, as shown in fig. 2, the conductive film may further include a protective layer 4 provided in a stacked manner with the base material layer 3, the color tone adjusting layer 1, and the conductive layer 2, respectively; here, the conductive layer 2 may be provided between the protective layer 4 and the color tone adjusting layer 1.
Here, the protective layer 4 may be in contact with the conductive layer 2, and may be used to protect the conductive film, for example, to prevent the conductive film from being damaged by an external force or the like.
In addition, as described above, in order to reduce the b value of the conductive film based on the silver nanowires, the color tone adjustment layer 1 may employ a blue color paste, for example, the blue color paste may include a violet color paste and/or a blue color paste, and the like. As shown in FIG. 3, FIG. 3 is an ultraviolet-visible light (UV-vis) absorption spectrum of a purple color paste, which has a strong absorption peak in a range of 500nm to 650nm (yellow-green band).
In an embodiment of the present invention, in the conductive film structure shown in fig. 2, the color tone adjusting layer 1 may include a violet color paste and a blue color paste.
Further, in the conductive film structure shown in fig. 2, the color tone adjusting layer 1 can also be prepared by coating a diluent of an adhesive on the surface of the substrate layer 3, the color tone adjusting layer 1 can include a violet color paste and a blue color paste, and the violet color paste and the blue color paste can be added in the diluent of the adhesive; wherein, the mass percent of the purple color paste in the diluent of the adhesive can be between 0.001 and 0.5 percent, and the mass percent of the blue color paste in the diluent of the adhesive can be between 0.001 and 0.5 percent.
Specifically, the color tone adjusting layer 1 in the conductive film can be prepared by coating, wherein the violet paste and the blue paste can be uniformly distributed in the diluent of the binder, so that the violet paste and the blue paste can be uniformly distributed in the color tone adjusting layer 1 formed after curing, so as to form the conductive film without affecting the haze.
Still further, in the conductive film structure shown in fig. 2, the mass percentage of the violet color paste in the diluent of the binder may be specifically 0.03%, and the mass percentage of the blue color paste in the diluent of the binder may be specifically 0.03%, 0.05%, or 0.07%.
For the conductive film shown in fig. 2, the haze of the conductive film can not be increased compared with the conductive film without adding color paste through an optical performance test, so the effect is ideal.
Fig. 4 is a schematic structural view of a conductive film according to another embodiment of the present invention.
In another embodiment of the present invention, as shown in fig. 4, the conductive film further includes a conductive layer 2; here, the base material layer 3 may be provided between the color tone adjusting layer 1 and the conductive layer 2.
Specifically, the structure of the conductive film may be as shown in fig. 4. Here, the conductive layer 2 may be in contact with the base material layer 3, and the base material layer 3 may be in contact with the color tone adjusting layer 1. The base material layer 3 is arranged between the conducting layer 2 and the color tone adjusting layer 1, so that color paste in the color tone adjusting layer 1 can be prevented from being in direct contact with the silver nanowires, and the sheet resistance or the aging resistance of the conducting film can be further maintained.
In another embodiment of the present invention, as shown in fig. 4, the conductive film may further include a protective layer 4 stacked on the substrate layer 3, the color tone adjusting layer 1, and the conductive layer 2, respectively; the conductive layer 2 may be disposed between the protective layer 4 and the base material layer 3.
Specifically, in the conductive film structure shown in fig. 4, the protective layer 4 may also be included, and the protective layer 4 may be in contact with the conductive layer 2.
In another embodiment of the present invention, as shown in fig. 4, the color tone adjusting layer 1 may include a violet color paste.
Further, in the conductive film structure shown in fig. 4, the color tone adjusting layer 1 may be prepared by coating a diluted solution of an adhesive on the surface of the base material layer 3, the color tone adjusting layer 1 may include a violet color paste, and the violet color paste may be added in the diluted solution of the adhesive; wherein, the mass percentage of the purple color paste in the diluent of the adhesive can be between 0.001 percent and 0.5 percent.
Specifically, the color tone adjusting layer 1 in the conductive film may be prepared by coating, wherein the coating liquid for coating may be a diluent of the binder, and the violet paste may be uniformly distributed in the diluent of the binder.
Still further, as shown in fig. 4, the mass percentage of the purple color paste in the diluent of the binder may be specifically 0.05%, 0.075%, or 0.1%.
In the conductive film structure shown in fig. 4, the description of the protective layer 4, the conductive layer 2, the color tone adjustment layer 1, and the substrate layer 3 can refer to the above embodiments, and the description thereof is omitted here to avoid redundancy.
For the conductive film shown in fig. 4, the haze of the conductive film may not be affected, in other words, the haze may be in a feasible range, compared with the conductive film without adding the color paste, through the optical performance test.
Fig. 5 is a schematic structural view of a conductive film according to still another embodiment of the present invention.
In another embodiment of the present invention, as shown in fig. 5, the conductive film further includes a conductive layer 2; here, the conductive layer 2 may be provided between the base material layer 3 and the color tone adjusting layer 1.
Specifically, here, the color tone adjusting layer 1 may function as the above-described protective layer 4 in addition to the color tone adjustment function.
In another embodiment of the present invention, as shown in fig. 5, the color tone adjusting layer 1 may include a violet color paste and a blue color paste.
Further, as shown in fig. 5, the color tone adjusting layer 1 may be prepared by coating a diluent of an adhesive on the surface of the conductive layer 2, the color tone adjusting layer 1 may include a violet color paste and a blue color paste, and the violet color paste and the blue color paste may be added in the diluent of the adhesive; wherein, the mass percent of the purple color paste in the diluent of the adhesive can be between 0.001 and 0.5 percent, and the mass percent of the blue color paste in the diluent of the adhesive can be between 0.001 and 0.5 percent.
Specifically, in the conductive film structure shown in fig. 5, the color tone adjusting layer 1 in the conductive film can also be prepared by coating, wherein the violet paste and the blue paste can also be uniformly distributed in the diluent of the binder. By selecting the binder material and setting the curing conditions of the diluent of the binder, the formed color tone adjusting layer can have a certain hardness, and further, functions as the protective layer 4.
Still further, as shown in fig. 5, the mass percentage of the violet color paste in the diluent of the binder may be specifically 0.01%, and the mass percentage of the blue color paste in the diluent of the binder may be specifically 0.006%; or, the mass percentage of the purple color paste in the diluent of the adhesive can be specifically 0.015%, and the mass percentage of the blue color paste in the diluent of the adhesive can be specifically 0.025%; or, the mass percentage of the purple color paste in the diluent of the adhesive can be specifically 0.03%, and the mass percentage of the blue color paste in the diluent of the adhesive can be specifically 0.05%.
In the conductive film structure shown in fig. 5, the description of the protective layer 4, the conductive layer 2, the color tone adjustment layer 1, and the substrate layer 3 can refer to the above embodiments, and the description thereof is omitted here to avoid redundancy.
For the conductive film shown in fig. 5, the haze of the conductive film may not be affected, in other words, the haze may be in a feasible range, compared with the conductive film without adding the color paste, through the optical performance test.
In another embodiment of the present invention, the color tone adjusting layer 1 may further include silver nanowires for conduction.
Specifically, here, the color tone adjusting layer 1 may be used for conduction in addition to the function of color tone adjustment, in other words, the color tone adjusting layer 1 may ensure the conductivity of the conductive film.
In another embodiment of the present invention, the coating may be performed by roll-to-roll coating.
Specifically, the manner of applying the diluted solution of the binder may include spin coating, spray coating, wire bar coating, blade coating, roll-to-roll coating, and the like, and the specific manner of applying is not limited herein.
Since roll-to-roll coating can facilitate continuous production and the production efficiency is high, the above coating manner may preferably be roll-to-roll coating.
In another embodiment of the present invention, the adhesive may include at least one of acrylate, epoxy, polyurethane, polyethylene glycol, carboxymethyl cellulose, hydroxypropyl cellulose, cellulose acetate, and ethylene oxide.
Specifically, here, the adhesive may be of any type, but the adhesive may preferably be at least one of acrylate, epoxy, polyurethane, polyethylene glycol, carboxymethyl cellulose, hydroxypropyl cellulose, cellulose acetate, and ethylene oxide, in consideration of the effects of adhesion, flexibility, and the influence on the haze of the conductive film. It should be understood that no limitation with respect to the specific type of adhesive is intended.
In another embodiment of the present invention, the diluting agent used for the diluent of the adhesive may include at least one of water, ethanol, isopropanol, n-butanol, acetone, butanone, cyclopentanone, propylene glycol methyl ether, propylene glycol ethyl ether, and ethyl acetate.
Specifically, here, the diluting agent may be any agent capable of dissolving the binder, but the diluting agent may preferably include at least one of water, ethanol, isopropanol, n-butanol, acetone, butanone, cyclopentanone, propylene glycol methyl ether, propylene glycol ethyl ether, and ethyl acetate, in consideration of the dilution effect, the influence on the haze of the conductive film, and the like. It should be understood that the specific type of diluting agent is not limited herein so long as the diluting agent is capable of dissolving the binder and color paste.
In another embodiment of the present invention, the mass percentage of the diluting agent in the diluent of the binder may be specifically between 80% and 99.9% in order to facilitate the coating of the diluent of the binder.
In an embodiment of the present invention, the color paste included in the color tone adjusting layer 1 may include a pigment, wherein the pigment may include at least one of an organic pigment, an inorganic pigment, and a metal oxide pigment.
Specifically, the color paste contains a pigment, and the specific type of the pigment is not limited herein as long as the color tone can be adjusted without increasing the haze of the conductive film.
In another embodiment of the present invention, in order to ensure that the conductive film can satisfy excellent and stable performance in a use environment, the light resistance of the pigment may preferably reach 8 levels of the national standard GB 1710-79; and/or the weather resistance of the pigment can preferably reach 5 grades of the national standard GB 250-; and/or the acid resistance of the pigment may preferably reach grade 5 of the national standard GB 5211.6-85; and/or the alkali resistance of the pigment can preferably reach 5 grades of the national standard GB 5211.7-85.
Here, in order to enable the pigment to satisfy the above-described respective properties, the pigment may be subjected to a surface treatment with an activator. It is to be understood that the pigment may also be surface treated with an active agent for ease of dispersion, and the type of active agent employed may vary depending on the purpose.
Further, the color paste may further include a dispersion medium in which the pigment may be uniformly dispersed so as to form the color tone adjusting layer 1 without increasing the haze; wherein the dispersion medium comprises an aqueous medium, an oily medium or a resin system medium.
Specifically, the color paste may be a dispersion of a pigment, and the dispersion medium may be an aqueous medium, an oily medium, or a resin system medium in order to form a uniformly dispersed pigment dispersion.
Here, in order to form a uniformly dispersed pigment dispersion, the pigment may be subjected to other treatments in addition to the selection concerning the dispersion medium, for example, in another embodiment of the present invention, the pigment may be further subjected to a fine grinding and dispersion process.
Specifically, the refined grinding and dispersion processing of the pigment can reduce the particle size of the pigment, prevent the pigment from aggregating in a dispersion medium, and further lay the foundation for forming a conductive film without affecting haze.
Embodiments of the present invention are described below with reference to specific examples.
In order to examine the optical properties of the conductive film based on silver nanowires as shown in fig. 4, the inventors applied a diluted solution of a binder to which violet paste was added, wherein the violet paste was 0%, 0.05%, 0.075%, and 0.1% by mass of the diluted solution of the binder, respectively, and numbered the formed corresponding conductive films as 1#, 2#, 3#, and 4#, respectively, to the transparent substrate, and obtained the optical properties as shown in table 1.
TABLE 1
| Conductive film | Concentration of purple color paste/%) | a* | b* | Haze | T/％ |
| 1# | 0 | -0.20 | 1.7 | 1.60 | 90.7 |
| 2# | 0.05 | -0.04 | 1.317 | 1.62 | 90.1 |
| 3# | 0.075 | 0.120 | 0.915 | 1.64 | 89.7 |
| 4# | 0.1 | 0.235 | 0.703 | 1.66 | 89.3 |
As can be seen from table 1, as the mass percentage of the violet paste increases, b of the conductive film can be reduced to less than 1.0, so that the yellowing phenomenon of the conductive film is effectively improved, and the Haze (Haze) of the conductive film is not affected.
In order to examine the optical properties of the conductive film based on silver nanowires as shown in fig. 2, the inventors coated a diluent of a binder to which violet paste and blue paste were added, wherein the violet paste was 0.03% by mass in the diluent of the binder, and the blue paste was 0.03%, 0.05% and 0.07% by mass in the diluent of the binder, respectively, and numbered the corresponding conductive films thus formed as 5#, 6# and 7# respectively, to the transparent substrate, and the optical properties obtained are shown in table 2.
TABLE 2
As shown in table 2, with the increase of the mass percentage of the blue paste, b of the conductive film can be reduced to less than 1.0, so that the yellowing phenomenon of the conductive film is effectively improved, and the haze of the conductive film is not increased, so that the obtained effect is very ideal.
In order to examine the optical properties of the conductive film based on silver nanowires as shown in fig. 5, the inventors applied a diluted solution of a binder to which a violet paste and a blue paste were added onto the conductive layer 2, wherein the mass percentages of the violet paste and the blue paste in the diluted solution of the binder and the numbers of the corresponding conductive films formed are shown in table 3, and the obtained optical properties are shown in table 3.
TABLE 3
As can be seen from table 3, as the mass percentages of the blue color paste and the violet color paste increase, b of the conductive film can be reduced to less than 1.0, so that the yellowing phenomenon of the conductive film is effectively improved, and the Haze (Haze) of the conductive film is not affected.
Here, the substrate used in the specific example may be PET, and other technical characteristics may refer to the previous embodiments, and are not described herein again to avoid redundancy.
The conductive film according to the embodiment of the present invention is described above, and the method for manufacturing the conductive film according to the embodiment of the present invention is described below.
Fig. 6 is a schematic flow chart of a method of manufacturing a conductive film according to an embodiment of the present invention.
As shown in fig. 6, the method of manufacturing the conductive film may include:
at least one color paste for adjusting color tone is added to the diluent of the binder, step 610.
Specifically, the production method may be performed by a film forming apparatus. Because the utility model discloses an embodiment not only makes the conducting film can present the colour that the user was allowed through set up the tone adjusting layer 1 including at least one kind of mill base in the conducting film, can not influence the haze of conducting film moreover, and furtherly can not increase the haze of conducting film even to satisfy display device's demonstration performance demand.
In another embodiment of the present invention, the at least one color paste for adjusting color tone comprises a violet color paste and a blue color paste; wherein, the mass percent of the purple color paste in the diluent of the adhesive is between 0.001 and 0.5 percent, and the mass percent of the blue color paste in the diluent of the adhesive is between 0.001 and 0.5 percent.
In another embodiment of the present invention, the step 520 may specifically include coating the diluted solution of the adhesive on the surface of the substrate layer 3, and the at least one color paste for adjusting the color tone includes a purple color paste; wherein, the mass percentage of the purple color paste in the diluent of the adhesive is between 0.001 and 0.5 percent.
In another embodiment of the present invention, the coating is performed by roll-to-roll coating.
Here, the technical details of the above manufacturing method may refer to the above description of the various embodiments of the conductive film, and are not repeated here to avoid repetition.
The conductive film and the method for manufacturing the conductive film according to the embodiment of the present invention are described above, and the touch device according to the embodiment of the present invention is described below.
The touch device may include the conductive film of any of the above embodiments. Because the utility model discloses an embodiment not only makes the conducting film can present the colour that the user was allowed through set up the tone adjusting layer 1 including at least one kind of mill base in the conducting film, can not influence the haze of conducting film moreover, and furtherly can not increase the haze of conducting film even to satisfy display device's display performance.
Here, specific characteristics of the conductive film may refer to the above embodiments related to the conductive film, and are not described herein again to avoid redundancy.
It should be understood that, for the diluent of the binder added with the color paste in each of the above embodiments, the color paste, the binder and the diluting agent may be included, and when the mass percentages of any two of them are defined, the rest is the other. In addition, the mass percent is calculated as the ratio of the mass of the color paste, binder or diluent to the sum of the mass of the color paste, binder and diluent.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalents and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (14)
1. A conductive film, comprising:
a base material layer and a color tone adjusting layer which are laminated;
the color tone adjusting layer comprises a color paste of a blue system for adjusting color tone, and the color tone adjusting layer is used for adjusting the color tone of the conductive film.
2. The conductive film according to claim 1, further comprising a conductive layer;
wherein the color tone adjusting layer is provided between the conductive layer and the base material layer.
3. The conductive film according to claim 1, further comprising a conductive layer;
wherein the base material layer is provided between the color tone adjusting layer and the conductive layer.
4. The conductive film according to claim 1, further comprising a conductive layer;
wherein the conductive layer is provided between the base material layer and the color tone adjusting layer.
5. The conductive film according to claim 1, wherein the blue color paste is a violet color paste or a blue color paste.
6. The conductive film according to claim 1, wherein the color tone adjusting layer further comprises silver nanowires for conduction.
7. The conductive film according to claim 1, wherein the color tone adjusting layer is prepared by coating a diluent of a binder, wherein the binder comprises acrylate, epoxy resin, polyurethane, polyethylene glycol, carboxymethyl cellulose, hydroxypropyl cellulose, cellulose acetate, or ethylene oxide.
8. The conductive film according to claim 1, wherein the color tone adjusting layer is prepared by applying a diluent of a binder, and wherein the diluent of the binder uses a diluting agent including water, ethanol, isopropanol, n-butanol, acetone, butanone, cyclopentanone, propylene glycol methyl ether, propylene glycol ethyl ether, or ethyl acetate.
9. The conductive film of claim 1 wherein the color paste comprises a pigment, wherein the pigment comprises an organic pigment, an inorganic pigment, or a metal oxide pigment.
10. The conductive film of claim 9 wherein the pigment has a light resistance of 8 of national standard GB 1710-79;
and/or the weather resistance of the pigment reaches 5 grades of the national standard GB 250-;
and/or the acid resistance of the pigment reaches 5 grades of the national standard GB 5211.6-85;
and/or the alkali resistance of the pigment reaches 5 grades of the national standard GB 5211.7-85.
11. The conductive film of claim 9 wherein the pigment is surface treated with an active agent.
12. The conductive film of claim 11 wherein the pigment is further subjected to a fine grinding and dispersion process.
13. The conductive film according to claim 9, wherein the color paste further comprises a dispersion medium in which the pigment is dispersed;
wherein the dispersion medium comprises an aqueous medium, an oily medium or a resin system medium.
14. A touch device comprising the conductive film according to any one of claims 1 to 13.
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| CN201920035881.9U CN210091128U (en) | 2019-01-09 | 2019-01-09 | Conductive film and touch device |
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| CN201920035881.9U CN210091128U (en) | 2019-01-09 | 2019-01-09 | Conductive film and touch device |
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| CN210091128U true CN210091128U (en) | 2020-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917950A (en) * | 2019-01-09 | 2019-06-21 | 苏州诺菲纳米科技有限公司 | Conductive film, the preparation method of conductive film and touch device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917950A (en) * | 2019-01-09 | 2019-06-21 | 苏州诺菲纳米科技有限公司 | Conductive film, the preparation method of conductive film and touch device |
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