CN109848011B - Manufacturing method of nano silver wire solution and manufacturing method of touch panel - Google Patents
Manufacturing method of nano silver wire solution and manufacturing method of touch panel Download PDFInfo
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- CN109848011B CN109848011B CN201910132941.3A CN201910132941A CN109848011B CN 109848011 B CN109848011 B CN 109848011B CN 201910132941 A CN201910132941 A CN 201910132941A CN 109848011 B CN109848011 B CN 109848011B
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Abstract
The invention relates to a manufacturing method of a nano silver wire solution, a manufacturing method of a touch panel and the touch panel. The preparation method of the nano silver wire solution comprises the following steps: mixing at least two solutions with the nano silver wires, wherein the lengths of the nano silver wires in the at least two solutions are different from each other; and introducing inert gas and/or inert gas into the mixed solution at the temperature of-10-0 ℃ to form the nano silver wire solution. The manufacturing method of the touch panel comprises the following steps: providing a substrate, and respectively forming a first conductive layer, an insulating layer and a second conductive layer on the substrate; at least part of the first conducting layer and the second conducting layer is made of the nano silver wire solution obtained by the manufacturing method of the nano silver wire. The manufacturing method of the nano silver wire solution, the manufacturing method of the touch panel and the touch panel can effectively improve the wiring strength of the driving electrode and the sensing electrode and the bending performance, the sensitivity and the conductivity of the flexible touch panel.
Description
Technical Field
The invention relates to the technical field of touch control, in particular to a method for manufacturing a nano silver wire solution, a method for preparing a touch panel by using the nano silver wire solution and the touch panel.
Background
The touch screen is input equipment which can obviously improve a man-machine operation interface and has the advantages of intuition, simplicity and quickness. Therefore, touch screens have been widely used in many electronic products. Taking a traditional capacitive touch screen as an example, the basic structure of the capacitive touch screen is an emitting layer, an insulating layer, a receiving layer, a protective layer and a packaging cover plate, wherein the emitting layer and the receiving layer are patterned transparent conductive films, and the transparent conductive films are generally made of ITO (indium tin oxide) coating films by processes such as laser etching, screen printing, yellow light etching and the like.
However, with the popularization of curved surfaces and flexible display products, the use of ITO in flexible electronic devices is greatly limited due to the problems of high brittleness, high resistance, high cost, poor scratch resistance, and the like, and thus, the use of different transparent electrode materials instead of ITO is a popular problem. In recent years, silver nano transparent electrodes have been the research focus in this field, and have become the most likely candidate for replacing ITO, because the nano silver wires consume less energy, are low in cost, and have excellent conductivity, light transmittance and flexibility.
When the transparent electrode made of the nano silver wire is used, the electrode lap joint area of the flexible touch panel is easy to have poor contact and other problems in the bending action, so that the sensitivity and the conductive capability of the touch screen are reduced.
Disclosure of Invention
In view of the above, it is necessary to provide a method for manufacturing a nano silver wire solution capable of enhancing the connection performance of an electrode bonding area of a flexible touch panel, a method for manufacturing a touch panel using the nano silver wire solution, and a touch panel thereof.
A method of making a silver nanowire solution, the method comprising:
mixing at least two solutions with the nano silver wires, wherein the lengths of the nano silver wires in the at least two solutions are different from each other;
and introducing inert gas and/or inert gas into the mixed solution at the temperature of-10-0 ℃ to form the nano silver wire solution.
According to the manufacturing method of the nano silver wire solution, at least two solutions of nano silver wires with different lengths are mixed, and the inert gas and/or the inert gas are introduced into the mixed solution, so that the nano silver wires in the nano silver wire solution are stronger in mutual connectivity, meanwhile, the nano silver wires can be more regularly and intensively arranged in the subsequent touch electrode manufacturing process by utilizing the adherence of the nano silver wires to bubbles, and therefore the wiring strength of the nano silver wires is increased.
In one embodiment, the storage temperature of the nano silver wire solution is-10 ℃ to 0 ℃.
In one embodiment, the lengths of the nano silver wires in the at least two solutions are between 10 and 40 μm and the diameters are between 10 and 20 nm.
In one embodiment, when the inert gas and/or the inert gas is introduced into the mixed solution, the bubble diameter of the inert gas and/or the inert gas is 0.5-10 μm, and the bubble density is 1 × 1081 x 10 per liter10And (2) per liter.
In one embodiment, the inert gas is nitrogen; the inert gas is one or more of helium, neon, argon, krypton and xenon.
A method of fabricating a touch panel, the method comprising:
providing a substrate;
forming a first conductive layer on a substrate;
forming an insulating layer over the first conductive layer;
forming a second conductive layer on the insulating layer;
at least part of the first conducting layer and the second conducting layer is made of the nano silver wire solution obtained by the manufacturing method of the nano silver wire in any embodiment; and the first conductive layer and the second conductive layer are respectively used for providing a driving electrode and a sensing electrode for the touch panel.
According to the manufacturing method of the touch panel, the driving electrode and the sensing electrode of the touch panel are prepared by adopting the nano silver wire solution which is introduced with the inert gas and/or the inert gas and contains the nano silver wires with different lengths, so that the wiring strength of the driving electrode and the sensing electrode is improved, particularly the wiring strength of the electrode in the overlapping area of the driving electrode and the sensing electrode is improved, and the bending performance of the flexible touch panel is improved.
In one embodiment, forming a first conductive layer on a substrate includes:
coating the nano silver wire solution on a substrate at the temperature of-10-0 ℃;
arranging the substrate coated with the nano silver wire solution in a heat preservation chamber, heating the temperature in the heat preservation chamber to 80-120 ℃, and preserving the heat for 5-10 min;
and pumping out the gas in the heat preservation chamber to solidify the nano silver wire solution on the substrate and form a first conductive layer.
In one embodiment, forming a second conductive layer over the insulating layer includes:
coating the nano silver wire solution on the insulating layer at the temperature of-10-0 ℃;
arranging the insulating layer coated with the nano silver wire solution in a heat preservation chamber, heating the temperature in the heat preservation chamber to 80-120 ℃, and preserving the heat for 5-10 min;
and pumping out the gas in the heat preservation chamber to solidify the nano silver wire solution on the insulating layer and form a second conducting layer.
In one embodiment, the first conductive layer and the second conductive layer each include an electrode pattern and a landing zone pattern, and the landing zone pattern and/or the electrode pattern are formed by using the silver nanowire solution obtained by the silver nanowire manufacturing method described in any one of the above embodiments.
A touch panel is prepared by adopting the manufacturing method of the touch panel in any embodiment.
According to the touch panel, the driving electrode and the sensing electrode are prepared by adopting the nano silver wire solution which is introduced with the inert gas and/or the inert gas and contains the nano silver wires with different lengths, and the low-temperature coating, the high-temperature vacuum evaporation and other technologies are adopted, so that the wiring strength of the driving electrode and the sensing electrode is improved, particularly the wiring strength of the electrode in the overlapping area of the driving electrode and the sensing electrode is improved, and the bending performance, the sensitivity and the conductivity of the flexible touch panel are effectively improved.
Drawings
FIG. 1a is a schematic top view of a touch panel in the prior art;
FIG. 1b is a partially enlarged view of a schematic top view structure of the touch panel shown in FIG. 1 a;
FIG. 2 is a schematic flow chart illustrating a method for forming a silver nanowire solution according to one embodiment;
FIG. 3 is a schematic diagram of a method for forming a silver nanowire solution according to one embodiment;
FIG. 4 is a flowchart illustrating a method for fabricating a touch panel according to an embodiment;
FIG. 5 is a schematic cross-sectional view illustrating a touch panel according to an embodiment;
FIG. 6 is a flow diagram illustrating a method for forming a first conductive layer according to one embodiment;
FIG. 7 is a flow diagram illustrating a method for forming a second conductive layer according to one embodiment;
FIG. 8a is a schematic diagram illustrating an effect of a touch panel after an electrode pattern is formed according to the prior art;
fig. 8b is a schematic diagram illustrating an effect of the touch panel after the electrode pattern is formed in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the prior art, a touch display panel generally refers to a display panel and a touch film layer disposed on the display panel, and a plurality of criss-cross driving electrodes and sensing electrodes are distributed on the touch film layer to implement a touch function. In the conventional technology, a driving electrode and a sensing electrode are usually made of ITO (Indium tin oxide) films, but the ITO films have many problems when applied to curved surfaces and flexible display products, so that a commonly used method at present is to make electrode patterns of the driving electrode and the sensing electrode by using a silver nanowire (silver nanowire) technology, specifically, a silver nanowire solution is coated on a plastic or glass substrate, and then a transparent conductive film with a nano-grade silver wire conductive network pattern is made by using a laser lithography technology or a mask plate technology.
Referring to fig. 1a and fig. 1b, fig. 1a shows a schematic top view structure of a touch panel, and fig. 1b shows a partial enlarged view of the schematic top view structure of the touch panel in fig. 1 a. As shown in fig. 1a, a plurality of driving electrodes 11 arranged along a first direction and a plurality of sensing electrodes 12 arranged along a second direction are distributed on a touch panel 10, wherein the first direction is perpendicular to the second direction, the first direction may be a transverse direction or a longitudinal direction in fig. 1a, and the second direction may be a longitudinal direction or a transverse direction in fig. 1 a. Further, as shown in fig. 1b, each of the driving electrodes 11 and each of the sensing electrodes 12 is composed of a plurality of electrode patterns 13 and a plurality of landing zone patterns 14, and the width of the landing zone patterns 14 is smaller than that of the electrode patterns 13. When the touch panel is bent, the problem of poor contact and the like easily occurs in the landing zone pattern 14 made of a common nano silver wire solution, so that the sensitivity and the conductive capability of the touch panel 10 are reduced or failed.
Based on the above, the present application provides a method for manufacturing a silver nanowire solution, a method for manufacturing a touch panel, and a touch panel, in which at least two solutions having silver nanowires are first mixed, wherein the lengths of the silver nanowires in the at least two solutions having silver nanowires are different from each other; secondly, introducing inert gas and/or inert gas into the mixed solution at the temperature of-10-0 ℃ to form a nano silver wire solution; and finally, respectively coating the nano silver wire solution on the substrate and the insulating layer, and respectively solidifying the electrode patterns on the substrate and the insulating layer by a high-temperature vacuum evaporation technology to form a driving electrode and an induction electrode of the touch panel. The touch panel manufactured by the method improves the wiring strength of the driving electrode and the sensing electrode, particularly improves the wiring strength of the electrode in the overlapping area of the driving electrode and the sensing electrode, and effectively improves the bending performance, the sensitivity and the conductivity of the flexible touch panel.
Based on the above scheme, the following detailed description is provided for specific embodiments with reference to the accompanying drawings.
In one embodiment, as shown in fig. 2 and 3, there is provided a method for manufacturing a nano silver wire solution, the method comprising the steps of:
step S102: mixing at least two solutions having the silver nanowires, the silver nanowires in the at least two solutions having different lengths from each other.
Specifically, the method comprises the steps of firstly mixing two or more than two solutions containing the nano-silver wires at normal temperature, wherein the lengths of the nano-silver wires in the two or more than two solutions containing the nano-silver wires are different from each other; and then, mechanically vibrating the mixed solution to fully and uniformly mix the multiple solutions to obtain a mixed solution containing two or more than two nano silver wires with different lengths.
Step S104: and introducing inert gas and/or inert gas into the mixed solution at the temperature of-10-0 ℃ to form the nano silver wire solution.
Specifically, under the environment of-10 ℃ to 0 ℃, a micro-bubble generator is used to introduce a certain amount of inert gas and/or inert gas into the solution mixed with the nano-silver wires with various lengths, so that micro-bubbles of the inert gas and/or inert gas are filled in the whole mixed solution to form the nano-silver solution described in the embodiment.
According to the manufacturing method of the nano silver wire solution, at least two solutions of nano silver wires with different lengths are mixed, and the inert gas and/or the inert gas are introduced into the mixed solution, so that the nano silver wires in the nano silver wire solution are stronger in mutual connectivity, meanwhile, the nano silver wires can be more regularly and intensively arranged in the subsequent touch electrode manufacturing process by utilizing the adherence of the nano silver wires to bubbles, and therefore the wiring strength of the nano silver wires is increased.
In one embodiment, the manufactured nano silver wire solution needs to be stored in a low-temperature environment with the temperature of-10 ℃ to 0 ℃, the temperature is not much different from the environment temperature when the inert gas and/or the inert gas is introduced, and the main function is to keep the bubble volume of the inert gas and/or the inert gas unchanged, so that the effectiveness of the nano silver wire solution is ensured.
In one embodiment, in the solution with the nano silver wire for mixing, the length of the nano silver wire may be between 10 μm and 40 μm, and the diameter thereof may be between 10nm and 20 nm. Specifically, the length difference between two or more solutions having silver nanowires is preferably 10 μm or more to increase the connectivity between the silver nanowires in the silver nanowire solution. The mixing ratio of the multiple solutions with nano silver wires can be equal or different by no more than 0.5 times in the mixing ratio, for example, the ratio can be between 1:0.5 and 1:1.5 when two solutions with nano silver wires are mixed.
In one embodiment, when the inert gas and/or inert gas is introduced into the mixed solution, the bubble diameter of the inert gas and/or inert gas should be controlled to be between 0.5 μm and 10 μm, and the bubble density should be controlled to be 1 × 1081 x 10 per liter10and/L. In this embodiment, the size and density of the bubbles introduced into the silver nanowire solution greatly affect the use effect of the silver nanowire, for example, if the bubbles are too large or too small, the effect of the bubbles is greatly reduced, so the size and density of the bubbles of the inert gas and/or inert gas should be strictly controlled.
In one embodiment, the inert gas may be nitrogen, and the inert gas may be one or more of helium, neon, argon, krypton and xenon, because these gases are generally colorless and odorless at normal temperature and pressure, and have a good stability because they hardly undergo a chemical reaction. Specifically, from the viewpoint of economy and safety, nitrogen or argon is generally used as the gas used in the present embodiment.
In one embodiment, as shown in fig. 4, a method for manufacturing a touch panel is provided, the method comprising the following steps:
step S202: a substrate is provided.
Step S204: a first conductive layer is formed on a substrate.
Step S206: an insulating layer is formed over the first conductive layer.
Step S208: a second conductive layer is formed on the insulating layer.
Specifically, as shown in fig. 5, a first conductive layer 120, an insulating layer 130, and a second conductive layer 140 are sequentially formed on a glass substrate or a flexible substrate 110 of the touch panel 100, and an adhesive protection layer 150 may be further formed on a surface of the second conductive layer 140, where the adhesive protection layer 150 may be used to protect the touch panel 100. In the process of forming the first conductive layer 120 and the second conductive layer 140, a mask may be used to cover the substrate 110 and the insulating layer 130, and then the nano silver wire solution is coated on the substrate 110 and the insulating layer 130, so as to manufacture the driving electrode pattern and the sensing electrode pattern of the touch panel 100. In this embodiment, the first conductive layer 120 and the second conductive layer 140 may respectively correspond to the driving electrode and the sensing electrode of the touch panel 100, and may also respectively correspond to the sensing electrode and the driving electrode of the touch panel 100, it can be understood that the film layers where the driving electrode and the sensing electrode are located may be determined according to an actual process, and are not limited herein; in addition, the nano silver solution prepared by the method for preparing a nano silver solution according to the above embodiment may be used to prepare partial electrode patterns of the first conductive layer 120 and the second conductive layer 140, or may be used to prepare all electrode patterns of the first conductive layer 120 and the second conductive layer 140.
According to the manufacturing method of the touch panel, the driving electrode and the sensing electrode of the touch panel are prepared by adopting the nano silver wire solution which is introduced with the inert gas and/or the inert gas and contains the nano silver wires with different lengths, so that the wiring strength of the driving electrode and the sensing electrode is improved, particularly the wiring strength of the electrode in the overlapping area of the driving electrode and the sensing electrode is improved, and the bending performance of the flexible touch panel is improved.
In one embodiment, as shown in fig. 6, a method for manufacturing a first conductive layer of a touch panel is provided, the method comprising the following steps:
step S302: coating the nano silver wire solution on a substrate at the temperature of-10-0 ℃.
Step S304: and arranging the substrate coated with the nano silver wire solution in a heat preservation chamber, heating the temperature in the heat preservation chamber to 80-120 ℃, and preserving the heat for 5-10 min.
Step S306: and pumping out the gas in the heat preservation chamber to solidify the nano silver wire solution on the substrate and form a first conductive layer.
Specifically, when the first conducting layer is manufactured, firstly, the nano silver wire solution is coated on the substrate in an environment of-10 ℃ to 0 ℃, and a mask plate can be adopted to cover the substrate during coating so as to ensure the accuracy of the coating position of the nano solution; secondly, the substrate coated with the nano silver wire solution can be moved into a heat preservation chamber with heating and vacuum functions, the temperature in the heat preservation chamber is rapidly heated to 80-120 ℃, and the heat preservation is carried out for 5-10 min, wherein the heat preservation time is determined according to the heat preservation temperature, namely the higher the heat preservation temperature is, the shorter the heat preservation time is; and finally, pumping out the gas in the heat preservation cavity to form a vacuum environment in the heat preservation cavity, and finally solidifying the nano silver wire on a specified position in the vacuum environment to form a first conducting layer.
In this embodiment, the liquid in the silver nanowire solution gradually evaporates and decreases in the process of temperature rise, the volume of the bubbles in the liquid gradually increases, the highly dispersed micro-bubbles can be used as the silver nanowires in the carrier adhesion solution, and when the number of the silver nanowires adhered to the bubbles gradually increases, the silver nanowires begin to slide around the bubbles. When the liquid evaporates and runs out, can adopt the mode of evacuation to get rid of remaining tiny bubble in the solution, make all bubbles disappear in the solution to be fixed in the base plate with the nanometer silver line of landing on, realize the arrangement that nanometer silver line is regular and concentrated with this.
In one embodiment, as shown in fig. 7, a method for manufacturing a second conductive layer of a touch panel is provided, the method comprising the following steps:
step S402: and coating the nano silver wire solution on the insulating layer at the temperature of-10-0 ℃.
Step S404: and arranging the insulating layer coated with the nano silver wire solution in a heat preservation chamber, heating the temperature in the heat preservation chamber to 80-120 ℃, and preserving the heat for 5-10 min.
Step S406: and pumping out the gas in the heat preservation chamber to solidify the nano silver wire solution on the insulating layer and form a second conducting layer.
Specifically, when the second conductive layer is manufactured, firstly, the nano silver wire solution is coated on the insulating layer in an environment of-10 ℃ to 0 ℃, wherein the insulating layer can be flexible films such as OCA (organic light emitting diode) or PI (polyimide), and a mask plate can be adopted to cover the insulating layer during coating so as to ensure the accuracy of the coating position of the nano solution; secondly, the insulating layer coated with the nano silver wire solution can be moved into a heat preservation chamber with the functions of heating and vacuum, the temperature in the heat preservation chamber is rapidly heated to 80-120 ℃, and the heat preservation is carried out for 5-10 min, wherein the heat preservation time is determined according to the heat preservation temperature, namely the higher the heat preservation temperature is, the shorter the heat preservation time is; and finally, pumping out the gas in the heat preservation cavity to form a vacuum environment in the heat preservation cavity, and finally solidifying the nano silver wire on a specified position and forming a second conducting layer in the vacuum environment.
In this embodiment, the liquid in the silver nanowire solution gradually evaporates and decreases in the process of temperature rise, the volume of the bubbles in the liquid gradually increases, the highly dispersed micro-bubbles can be used as the silver nanowires in the carrier adhesion solution, and when the number of the silver nanowires adhered to the bubbles gradually increases, the silver nanowires begin to slide around the bubbles. When the liquid evaporates and runs out, can adopt the mode of evacuation to get rid of remaining tiny bubble in the solution, make all bubbles disappear in the solution to be fixed in the base plate with the nanometer silver line of landing on, realize the arrangement that nanometer silver line is regular and concentrated with this.
In one embodiment, as shown in fig. 1 and 2, the first conductive layer and the second conductive layer of the touch panel each include an electrode pattern 13 and a landing zone pattern 14, wherein the electrode pattern 13 and the landing zone pattern 14 may be made of a nano-silver wire solution into which an inert gas and/or an inert gas is introduced and which contains nano-silver wires of different lengths, or only the landing zone pattern 14 is made of a nano-silver wire solution into which an inert gas and/or an inert gas is introduced and which contains nano-silver wires of different lengths. The two methods can both achieve the effect of enhancing the wiring strength of the lap joint area of the touch panel, wherein the first mode can save the process and can enable the touch panel to have more excellent bending performance and conductivity. As shown in fig. 8a and 8b, fig. 8a shows a schematic diagram of an effect of a touch panel after an electrode pattern is formed in the prior art, and fig. 8b shows a schematic diagram of an effect of a touch panel in this embodiment after an electrode pattern is formed, and it can be seen from the diagrams that an electrode pattern formed by using a nano silver wire solution which is introduced with an inert gas and/or an inert gas and contains nano silver wires with different lengths has better connectivity, and ensures excellent performance that the touch panel is not easily broken when being bent.
In an embodiment, a touch panel is further provided, and the touch panel is manufactured by the manufacturing method of the touch panel described in the above embodiment. As shown in fig. 5, the touch panel 100 includes a substrate 110, a first conductive layer 120, an insulating layer 130, a second conductive layer 140, and an adhesive protection layer 150, wherein the first conductive layer 120 and the second conductive layer 140 are made of a nano-silver wire solution into which an inert gas and/or an inert gas is introduced and which contains nano-silver wires having different lengths, and are used to provide driving electrodes and sensing electrodes for the touch panel 100.
According to the touch panel, the driving electrode and the sensing electrode are prepared by adopting the nano silver wire solution which is introduced with the inert gas and/or the inert gas and contains the nano silver wires with different lengths, and the low-temperature coating, the high-temperature vacuum evaporation and other technologies are adopted, so that the wiring strength of the driving electrode and the sensing electrode is improved, particularly the wiring strength of the electrode in the overlapping area of the driving electrode and the sensing electrode is improved, and the bending performance, the sensitivity and the conductivity of the flexible touch panel are effectively improved.
In one embodiment, there is also provided a touch display device, including: the touch panel according to the above embodiment. Specifically, the touch display device can be any product or component with a display function, such as a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator, an intelligent wearable device, and the like. The touch display device adopts the touch panel of the embodiment, so that the touch display device has better bending performance and conductive performance. Other essential components of the display device are all understood by those skilled in the art, and are not described herein.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A method for preparing a nano silver wire solution, which is characterized by comprising the following steps:
mixing at least two solutions having silver nanowires, the silver nanowires in the at least two solutions having different lengths from each other;
introducing an inert gas and/or an inert gas into the mixed solution at the temperature of-10-0 ℃ to form the nano silver wire solution, wherein the bubble diameter of the inert gas and/or the inert gas is0.5 to 10 μm, and a bubble density of 1X 108Per/L of 1 x 1010And (2) per liter.
2. The method of claim 1, wherein the silver nanowire solution is stored at a temperature of-10 ℃ to 0 ℃.
3. The method of claim 1, wherein the length of the silver nanowires in the at least two solutions is 10 μm to 40 μm, and the diameter of the silver nanowires in the at least two solutions is 10nm to 20 nm.
4. The method of claim 1, wherein the inert gas is nitrogen; the inert gas is one or more of helium, neon, argon, krypton and xenon.
5. A method for manufacturing a touch panel, the method comprising:
providing a substrate;
forming a first conductive layer on the substrate;
forming an insulating layer on the first conductive layer;
forming a second conductive layer on the insulating layer;
wherein at least part of the first conductive layer and the second conductive layer is made of the nano silver wire solution obtained by the manufacturing method of any one of claims 1 to 4; and the first conductive layer and the second conductive layer are respectively used for providing a driving electrode and an induction electrode for the touch panel.
6. The method of claim 5, wherein forming a first conductive layer on the substrate comprises:
coating the nano silver wire solution on the substrate at-10-0 ℃;
arranging the substrate coated with the nano silver wire solution in a heat preservation chamber, heating the temperature in the heat preservation chamber to 80-120 ℃, and preserving the heat for 5-10 min;
and pumping out the gas in the heat preservation chamber to solidify the nano silver wire solution on the substrate and form the first conducting layer.
7. The method of claim 5, wherein the forming a second conductive layer on the insulating layer comprises:
coating the nano silver wire solution on the insulating layer at the temperature of-10-0 ℃;
arranging the insulating layer coated with the nano silver wire solution in a heat preservation chamber, heating the temperature in the heat preservation chamber to 80-120 ℃, and preserving the heat for 5-10 min;
and pumping out the gas in the heat preservation chamber to solidify the nano silver wire solution on the insulating layer and form the second conducting layer.
8. The method of manufacturing a touch panel according to any one of claims 5 to 7, wherein the first conductive layer and the second conductive layer each include an electrode pattern and a landing zone pattern, and the landing zone pattern and/or the electrode pattern is formed using the nano-silver wire solution obtained by the manufacturing method according to any one of claims 1 to 4.
9. A touch panel prepared by the method according to any one of claims 5 to 8.
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| CN102087886A (en) * | 2009-12-08 | 2011-06-08 | 中国科学院福建物质结构研究所 | Silver nanowire-based transparent conductive thin film and preparation method thereof |
| CN102197519A (en) * | 2008-09-02 | 2011-09-21 | 阿克马法国公司 | Composite electrode material, battery electrode consisting of said material, and lithium battery including such an electrode |
| CN103870076A (en) * | 2012-12-18 | 2014-06-18 | 明兴光电股份有限公司 | Touch panel and manufacturing method thereof |
| CN203930738U (en) * | 2014-06-12 | 2014-11-05 | 宸鸿科技(厦门)有限公司 | A kind of contact panel |
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| CN102197519A (en) * | 2008-09-02 | 2011-09-21 | 阿克马法国公司 | Composite electrode material, battery electrode consisting of said material, and lithium battery including such an electrode |
| CN102087886A (en) * | 2009-12-08 | 2011-06-08 | 中国科学院福建物质结构研究所 | Silver nanowire-based transparent conductive thin film and preparation method thereof |
| CN103870076A (en) * | 2012-12-18 | 2014-06-18 | 明兴光电股份有限公司 | Touch panel and manufacturing method thereof |
| CN203930738U (en) * | 2014-06-12 | 2014-11-05 | 宸鸿科技(厦门)有限公司 | A kind of contact panel |
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