TW201603127A - Method for manufacturing touch sensing conductive electrode and structure thereof - Google Patents

Abstract

The present invention relates to a method for manufacturing a touch sensing conductive electrode and a structure thereof. The manufacturing method includes: selecting a predetermined substrate material to form a substrate layer; forming at least one adhesion layer on a surface of the substrate layer; forming a shielding layer with recess lines on a surface of the adhesion layer; forming at least one metal conductive electrode in the recess lines on the surface of the shielding layer; removing the shielding layer to form a metal conductive electrode having a circuit pattern and etching off the adhesion layer located between the metal conductive electrodes; and forming at least one weatherproof layer on the surface of the metal conductive electrode. The manufacturing method of the present invention can dramatically improve a production yield of the touch sensing conductive electrode circuit, enhance weatherproof capability of the touch sensing conductive electrode circuit, precisely control the trace width of the touch sensing conductive electrode circuit, and manufacture an ultra-thinned trace touch sensing conductive electrode circuit.

Description

Manufacturing method and structure of conductive electrode for touch

The invention relates to a method for manufacturing a conductive electrode for touch control and a structure thereof, in particular to a structure and a method for forming a metal conductive electrode by using a mask layer related step and simultaneously providing complete protection of the surface of the metal conductive electrode layer, and lifting the metal conductive electrode The production yield and durability of the line.

With the development of electronic information products in the direction of lightness and thinness, semiconductor manufacturing methods are also moving toward high-density and automated production, and the electronic products or devices with touch-sensitive surfaces, along with their touch-sensing surfaces or The size of the touch panel product is gradually increased from small to small. The conductive electrode is made of a material commonly used indium tin oxide (ITO) to be converted into a metal conductor electrode, and is designed so that the conductive electrode constituting the panel substrate is not The user clearly perceives the presence of the conductive electrode by the user, that is, the conductive electrode is not recognized by the user, and the research and development personnel in the industry are currently aiming at making the wire diameter of the metal conductive electrode extremely fine.

In fact, the structure and process of the general metal conductive electrode 10, as shown in FIG. 1, is generally the step (1) of attaching the metal conductive electrode 10 to the substrate 12 through at least one adhesion layer 11 (also referred to as an adhesion layer). The metal conductive electrode 10 is not easily detached from the substrate 12, and at least one weather resistant layer 13 (resist layer) is then overlaid on the metal conductive electrode 10, and the step (3) is followed by etching with an etching liquid. Wet etching forms the metal conductive electrode 10 electrode line 14 to complete the preliminary fabrication of the metal conductive electrode 10 electrode line 14. In addition, after the final sensing electrode product is completed, the protective film 16 (OCA) can be further used. The entire surface of the electrode line 14 of the metal conductive electrode 10 is laid.

Referring to FIG. 2, the adhesion layer 11 is designed as two layers, which are respectively an interposer 17 bonded to the substrate 12 and a conductive underlayer 18 bonded to the metal conductive electrode 10.

However, the wet etching is isotropic, and since the weathering layer 13 is an etching resistant material, the etching rate of the etching liquid between the weathering layer 13 and the metal conductive electrode 10 is greatly different. Further, the distribution of the weather-resistant layer 13 formed in the step (2) is often a thickness unevenness state. Therefore, when the etching solution is longitudinally etched, it is feared that the metal conductive electrode 10 in the etching process is severely affected. Side erosion phenomenon 15.

Referring to FIG. 1 again, in other words, the left and right side portions of the metal conductive electrode 10, especially the above-mentioned metal conductive electrode 10 having a width design of less than 5 μm and a thickness design of more than 0.3 μm, The above-mentioned side etching phenomenon 15 is likely to occur, resulting in an excessively large proportion of the total etching area of the metal conductive electrode 10 and uneven local etching, which causes the impedance value of the wire diameter of the electrode line 10 of the metal conductive electrode 10 to be too large, and even more so that the metal is electrically conductive. As a result of the disconnection of the electrode 10 electrode line 14, the yield and quality of the metal conductive electrode 10 produced by the manufacturer are not easily controlled, which is a fundamental problem in the development of the ultra-fine conductive electrode.

Furthermore, in the case where the metal-conducting electrode 10 electrode line 14 which is commonly used in the industry is extremely thin in wire diameter, if the protective measures are not further designed, the user uses it for a long time. Under the environment oxidation, the above-mentioned metal conductive electrode 10 electrode line 14 may not reach the original predetermined working efficiency, which may shorten the service life of the product, affect the quality of the final touch panel finished product produced by the manufacturer, and the environmental durability. Performance and other conditions.

In addition, the conventional touch panel can perform a series of strict environmental testing experiments, for example, the touch panel is subjected to a high temperature heating test under 1000 hours, 85 ° C, and 90% humidity, or 100. °C boil for 100 minutes to simulate a long-term high temperature and high pressure environment.

In the present two kinds of detection experiments, water molecules penetrate into the protective film 16 and contact the metal conductive electrode 10, which may cause oxidation of the metal conductive electrode 10, thereby knowing that the user can use it for a long time. In the touch panel produced by the above process, the impedance value of the capacitive sensing forming the touch screen or the electronic product is likely to increase greatly until it is unable to supply the user to a normal use state.

The lack of a touch panel of the above-described metal conductive electrode 10 produced according to the various conventional processes explained above is an object of the present invention.

The main object of the present invention is to provide a process for manufacturing a conductive electrode for touch using a related step of a shielding layer having a predetermined line pattern, instead of forming a metal conductive electrode by etching, and reducing the conventional metal. The severe lateral etching phenomenon of the conductive electrode during ten procedures causes the product of the metal conductive electrode to have an extremely low yield.

Another object of the present invention is to design a complete weather-resistant layer coating protection through a metal conductive electrode forming a line pattern, and further reduce the oxidation process of the conductive electrode in the air for a long time in the air, and further enhance the oxidation process of the conductive electrode. The corrosion resistance of the conductive electrode extends the product life of the conductive electrode for touch.

A further object of the present invention is to produce a conductive electrode for touch using a related step of a mask layer having a predetermined line pattern, which can achieve the purpose of controlling and maintaining the wire diameter of each touch conductive electrode.

Another object of the present invention is that the conductive electrode structure for touch control and the design of the ultra-fine wire diameter of the present invention can avoid the occurrence of interference fringes (Moire) visible to the human eye, and increase the light transmittance and color of the touch panel light source. The effect of saturation, color shift reduction, etc., provides the user with a comfortable human eye visual touch operation interface.

In order to achieve the above object, in the method for manufacturing a conductive electrode for touch control according to the present invention, (A) a predetermined substrate is selected, and a substrate layer is formed from the substrate, and the substrate layer has flexibility or does not have Flexible (hard); (B) forming at least one adhesion layer on the surface of the substrate layer; (C) forming a shielding layer having a groove line on the surface of the adhesion layer; (D) on the surface of the shielding layer Forming at least one metal conductive electrode in the groove line; (E) removing the shielding layer to form a metal conductive electrode having a line pattern; and removing the adhesion layer between the metal conductive electrode line patterns by etching, and forming the metal layer The surface of the conductive electrode forms at least one weather resistant layer.

In a preferred embodiment, the step (E) forms a weather-resistant layer on the outer peripheral surface of the metal conductive electrode, and the weather-resistant layer cooperates with the adhesion layer to seal the metal conductive electrode having the line pattern from the outside. The weather resistant layer may be provided with a blackening property capable of shielding the metal conductive electrode.

In a preferred embodiment, the step (D) further forms a first weathering layer on the upper surface of the metal conductive electrode.

In a preferred embodiment, the above step (E) forms a second weathering layer on the surface of the metal conductive electrode.

Furthermore, in a preferred embodiment, the step (B) further forms an interposer on the surface of the substrate layer, forms a conductive substrate layer on the surface of the interposer layer, and forms an anti-oxidation layer on the surface of the conductive substrate layer. The layers are used to jointly construct the above adhesion layer.

In another preferred embodiment, the step (B) further forms a blackening layer on the surface of the substrate layer, an interposer on the surface of the blackening layer, and a conductive substrate layer on the surface of the interposer. The above adhesion layer is jointly constructed.

In a further preferred embodiment, the step (B) further comprises forming a blackening layer on the surface of the substrate layer, forming an interposer on the surface of the blackening layer, forming a conductive substrate layer on the surface of the interposer layer, and An anti-oxidation layer is formed on the surface of the conductive substrate layer to jointly construct the adhesion layer.

Moreover, the adhesion layer may be selected from one of vacuum sputtering, electroless plating, or polymer coating, or a combination thereof.

The above masking layer is processed by one of printing or photoresist exposure developing techniques or a combination thereof.

The metal conductive electrode may be selected from the group consisting of vacuum sputtering, evaporation, electroless plating, electroplating, or conductive polymer coating.

The weatherable layer may be selected from one of electroless plating, electroplating, or conductive polymer coating, or a combination thereof.

Furthermore, the conductive electrode for touch control of the present invention comprises a substrate layer; at least one adhesion layer is formed on the surface of the substrate layer; and a metal conductive electrode is connected to the surface of the adhesion layer and corresponds to the line The pattern forms a conductive line; and a weather-resistant layer is attached to the outer peripheral surface of the metal conductive electrode to seal the conductive line from the outside.

The weather-resistant layer includes a first weather-resistant layer formed on the upper surface of the circuit pattern of the metal conductive electrode, and a second weather-resistant layer further covering the outer peripheral surface of the line pattern of the metal conductive electrode and connecting the line pattern coated on the adhesion layer The outer perimeter.

In addition, the above adhesion layer can be designed into three different structural forms, as described below:

The adhesion layer comprises an interposer on the surface of the substrate layer, a conductive substrate layer formed on the surface of the interposer, and an anti-oxidation layer on the surface of the conductive substrate.

The adhesion layer includes a blackening layer formed on a surface of the substrate layer, an interposer formed on a surface of the blackening layer, and a conductive underlayer formed on a surface of the interposer.

And the adhesion layer comprises a blackening layer formed on the surface of the substrate layer, an interposer formed on the surface of the blackening layer, a conductive substrate layer formed on the surface of the interposer, and a surface on the conductive substrate layer. Antioxidant layer.

The conductive electrode for touch control further includes a protective adhesive film layer forming a transparent state, and the protective adhesive film layer is disposed on the outer peripheral surface of the base material layer and the weather resistant layer. Further, the above protective film layer is made of one of (poly)oxy resin or acrylic resin.

In addition, the conductive line exhibits a grid-like structure, and the weather-resistant layer exhibits a U-shaped structure.

Wherein, the base material layer may be composed of a soft material or a glass plate, and the soft material is composed of polyterephthalic acid as a diester, polymethyl methacrylate, polycarbonate, polyphenylene fluorene or polyethylene. The amine is either one of polyamines.

The adhesion layer is made of one of a metal, a metal oxide, a polymer material or a composite material thereof, and the metal is selected from the group consisting of tungsten, nickel, chromium, copper, vanadium, molybdenum, tin, zinc, cobalt. Made of iron, titanium, aluminum, niobium or an alloy thereof, which is made of tungsten, nickel, chromium, copper, vanadium, molybdenum, tin, zinc, cobalt, iron, titanium, aluminum, niobium or One of its alloys is made by oxidation.

The metal conductive electrode is made of a metal such as gold, copper, silver, zinc, aluminum, nickel, tin, or an alloy thereof, or one of conductive polymer materials.

The weathering layer is made of carbon, graphite, metal, metal oxide, conductive polymer material or a composite material thereof, and the metal is selected from the group consisting of tungsten, nickel, chromium, copper, aluminum, Made of silver, titanium, molybdenum, tin, zinc, cobalt, iron, bismuth or an alloy thereof, the above metal oxides are respectively tungsten, nickel, chromium, copper, aluminum, silver, titanium, molybdenum, tin, zinc , one of oxidation of cobalt, iron, ruthenium or its alloy.

Finally, the thickness of the adhesion layer is between 0.01 μm and 1 μm, the thickness of the metal conductive electrode is between 0.1 μm and 6 μm, and the thickness of the weatherable layer is between 0.01 μm and 1 μm, and the width of each of the above-mentioned conductive electrodes for touch Between 0.1μm ~ 10μm.

As apparent from the foregoing description, the present invention is characterized in that the effect of greatly improving the production yield of the metal conductive electrode line and further stably producing the wire diameter of each of the touch conductive electrodes by using a masking layer or the like is further improved; Through the complete cladding protection for each of the metal conductive electrodes forming the line pattern, the durability of the use of the conductive electrode line product for touch is improved.

In order to further clarify and understand the structure, the use and the features of the present invention, the preferred embodiment is described in detail with reference to the following drawings:

Referring to FIG. 3A to FIG. 3B, in the first preferred embodiment of the method for manufacturing the conductive electrode for touch control of the present invention, the manufacturing steps are as follows:

(A) selecting a predetermined substrate from which a substrate layer 2 is formed, and the substrate layer 2 may be composed of a soft material or a glass plate, and the soft material is polyethylene terephthalate. Made of (PET), polymethyl methacrylate (PMMA), polycarbonate (PC), polyphenylene hydrazine (PPSU), polyethyleneimine (PEI) or polyiminamide (PI) to make;

(B) forming at least one electrically conductive adhesion layer 3 on the surface of the substrate layer 2, wherein the adhesion layer 3 may be selected from one of vacuum sputtering, electroless plating or polymer coating or a combination thereof. The process is performed, and the adhesion layer 3 is made of one of a metal, a metal oxide, a polymer material or a composite material thereof, wherein the metal of the adhesion layer 3 is selected from the group consisting of tungsten (W) and nickel ( Ni), chromium (Cr), copper (Cu), vanadium (V), molybdenum (Mo), tin (Sn), zinc (Zn), cobalt (Co), iron (Fe), titanium (Ti), aluminum ( Made of one of Al), niobium (Nb) or an alloy thereof, the above metal oxide of the adhesion layer 3 is made of tungsten (W), nickel (Ni), chromium (Cr), copper (Cu), vanadium ( V), molybdenum (Mo), tin (Sn), zinc (Zn), cobalt (Co), iron (Fe), titanium (Ti), aluminum (Al), niobium (Nb) or an alloy thereof to make.

Referring to FIG. 4, further, the conventional adhesion layer 11 is composed of two layers. In the first preferred embodiment, the adhesion layer 3 can be sequentially processed by a sputtering process. An interposer 31, a conductive substrate 32, and an anti-oxidation layer 33 are formed in three layers. An interposer 31 is formed on the surface of the substrate layer 2, and a conductive substrate is formed on the surface of the interposer 31. The layer 32 and an anti-oxidation layer 33 are formed on the surface of the conductive substrate layer 32.

Referring to FIG. 5, in the second preferred embodiment, the adhesion layer 3 can be sequentially formed by a blackening layer 30, an interposer 31, and a conductive substrate 32 in a sputtering process. A blackening layer 30 is formed on the surface of the substrate layer 2, an interposer 31 is formed on the surface of the blackening layer 30, and a conductive substrate 32 is formed on the surface of the interposer 31.

Referring to FIG. 6 , in the third preferred embodiment, the adhesion layer 3 may sequentially comprise a blackening layer 30 , an interposer layer 31 , a conductive substrate layer 32 , and an anti-oxidation layer by using a sputtering process. A total of four layers are formed together, a blackening layer 30 is formed on the surface of the substrate layer 2, an interposer 31 is formed on the surface of the blackening layer 30, and a conductive substrate layer is formed on the surface of the interposer 31. 32 and an anti-oxidation layer 33 is formed on the surface of the conductive base layer 32.

The adhesion layer 3 of the second and third preferred embodiments has a blackening layer 30 in the direction of the substrate layer 2, and the blackening layer 30 is a metal oxide having electrical conductivity or One of the metal compounds having a resist property is formed, and the thickness of the blackening layer 30 is in the range of 5 nm to 0.1 μm, in other words, the material properties of the blackening layer 30 are blue in color. A darker color such as green, purple, brown or black, which helps to absorb reflected light or refracted light on the product. Therefore, the above-mentioned metal conductive electrode 6 is inconveniently noticeable to the user of the product, and the interference fringe is effectively reduced. The occurrence of a phenomenon (moire) provides a comfortable effect when the user views the surface of the product with the eye.

The interposer 31 (also referred to as a Tie-coat) is used to bond the blackening layer 30 and the conductive base layer 32. The conductive base layer 32 (also referred to as a seed layer) has an oxidizable property and is used in comparison with the conventional one. The following three methods prevent the oxidation state of the conductive underlayer 32 from occurring: Method (1) removing the oxidized conductive underlayer 32 with an acidic solution, and the method (2) is temporarily freeze-dried or stored under low temperature and low humidity for 12 to 24 hours. The conductive base layer 32 and the method (3) are used for vacuum storage and the conductive base layer 32 is used within three to six months. However, the present invention is designed to form an oxidation resistant layer 33 on the surface of the conductive base layer 32. The oxidation of the above-mentioned conductive underlayer 32 is avoided.

Referring to FIG. 3A to FIG. 3B, the above step (B) is continued, and (C) a shielding layer 5 having a groove line 4 is formed on the surface of the adhesion layer 3, wherein the shielding layer 5 is made of a photoresist. The exposure developing technique is combined with a photosensitive resist or a printing method in combination with one or a combination of polymer materials, whereby it can be observed that the width of the groove line 4 of the present invention can be accurately performed in the manner described above. control;

(D) forming at least one metal conductive electrode 6 in the groove line 4 between the surfaces of the shielding layer 5, the metal conductive electrode 6 being confined in the groove line 4, thereby ensuring that the metal produced is electrically conductive The wire diameter of the electrode 6, wherein the metal conductive electrode 6 may be selected from the group consisting of vacuum sputtering, evaporation, electroless plating, electroplating, or conductive polymer coating, or a combination thereof, and the metal conductive electrode 6 is used. It is made of metal such as gold (Au), copper (Cu), silver (Ag), zinc (Zn), aluminum (Al), nickel (Ni), tin (Sn), or an alloy thereof, or a conductive polymer material. One of them is made.

(E) removing the above-mentioned shielding layer 5 to form a metal conductive electrode 6 having a line pattern, and removing the adhesion layer 3 between the metal conductive electrodes 6 by etching, and on the outer peripheral surface 61 of the metal conductive electrode 6 and The surface of the adhesion layer 3 is formed with a weather-resistant layer 7 of a U-shaped form. The weather-resistant layer 7 seals the metal conductive electrode 6 having the line pattern from the outside. The weather-resistant layer 7 may be selected from electroless plating. Or electroplating or a combination of conductive polymer coatings, wherein the weathering layer 7 is made of carbon (C), graphite, metal, metal oxide, conductive polymer material or One of the composite materials is made.

The preliminary products of the conductive electrode for touch control of the present invention are formed by the above steps (A), (B), (C), (D), and (E), and the width of each of the conductive electrodes for touch control can be accurately Adjust to between 0.1μm and 10μm.

Wherein, the metal of the weathering layer 7 is selected from the group consisting of tungsten (W), nickel (Ni), chromium (Cr), copper (Cu), aluminum (Al), silver (Ag), titanium (Ti), and molybdenum ( Mo), tin (Sn), zinc (Zn), cobalt (Co), iron (Fe), niobium (Nb) or an alloy thereof, the metal oxide of the weathering layer 7 is made of tungsten ( W), nickel (Ni), chromium (Cr), copper (Cu), aluminum (Al), silver (Ag), titanium (Ti), molybdenum (Mo), tin (Sn), zinc (Zn), cobalt ( Co), iron (Fe), niobium (Nb) or an alloy thereof is produced by oxidation of one of them.

Further, in the further step, the weathering layer 7 can be set to have a blackening property with a darker color, and thus indirectly causes the metal conductive electrode 6 to be less noticeable to the user of the product, thereby effectively reducing the interference fringe phenomenon (moire). The occurrence of a comfortable effect when the user views the surface of the product with the eyes.

(F) After the present invention is sent to other destinations for other subsequent processing procedures, a transparent protective adhesive film layer 8 (Optically clear adhesive) can be completely covered and sealed to the conductive electrode by coating or direct filming. A step of protecting the construction of the present invention, wherein the protective adhesive film layer 8 is made of one of a (poly) oxidized resin (Silicone) or an acrylic resin (Acrylic).

Compared with the protective film layer 8 of the present invention, the conductive electrode is completely covered in the protective adhesive film layer 8, and the protective adhesive film layer 8 forms a nearly flat surface state with respect to the substrate layer 2. It does not leave a gap between the conductive electrodes for touch having a line pattern.

The electrode circuit of the present invention can be designed to be constructed on one side (one side) of the substrate layer 2 (not shown), or on both sides of the substrate layer 2, or even a plurality of the substrate layer 2 surface.

Referring to FIG. 7A to FIG. 7B, in the second preferred embodiment, the manufacturing step (A), the step (B), the step (C) and the step (D) are the same as the first embodiment, only in the steps. (E) and (F) are different: (E) removing the above-mentioned shielding layer 5 to form a metal conductive electrode 6 having a line pattern, and etchingly removing the adhesion layer 3 between the metal conductive electrodes 6 and A weather-resistant layer 7 of a U-shape is formed on the outer peripheral surface 61 of the wiring pattern of the metal conductive electrode 6.

(F) A transparent protective adhesive layer 8 (Optically clear adhesive) is completely covered and sealed on the surface of the base material layer 2, the adhesion layer 3, and the weathering layer 7 to form a sealed state.

It is to be noted that the weather-resistant layer 7 may be formed by a line pattern upper surface 60 including a first weather-resistant layer 70 formed on the metal conductive electrode 6 and a circuit pattern outer periphery of a second weather-resistant layer 71 covering the metal conductive electrode 6. Face 61, according to which, the following third, fourth and fifth embodiments are:

Referring to FIG. 8A to FIG. 8B, in the third preferred embodiment, the manufacturing step (A), the step (B), the step (C) and the step (F) are the same as the first embodiment, only in the steps. (D), the step (E) has a difference: the step (D) forms at least one metal conductive electrode 6 in the groove line 4 on the surface of the shielding layer 5, and further forms a surface on the upper surface 60 of the metal conductive electrode 6 The first weathering layer 70.

Further, in step (E), the shielding layer 5 is removed to form the metal conductive electrode 6 having a line pattern, and the adhesion layer 3 between the metal conductive electrodes 6 is removed by etching, and the metal conductive electrode 6 is disposed on the metal conductive electrode 6 The outer peripheral surface 61, the outer peripheral surface of the first weather-resistant layer 70, and the outer peripheral surface of the adhesion layer 3 form a second weather-resistant layer 71, and the second weather-resistant layer 71 cooperates with the adhesion layer 3 to seal the metal conductive electrode 6 from the outside.

Referring to FIG. 9A to FIG. 9B, in the fourth preferred embodiment, the manufacturing step (A), the step (B), the step (C) and the step (D) are the same as the third preferred embodiment, only The step (E) and the step (F) are different in that the shielding layer 5 is removed to form the metal conductive electrode 6 having a line pattern, and the adhesion layer 3 between the metal conductive electrodes 6 is removed by etching, and A second weather-resistant layer 71 is formed on the outer peripheral surface 61 of the wiring pattern of the metal conductive electrode 6, and the second weather-resistant layer 71 is sealed to the outside by the adhesion layer 3 and the first weather-resistant layer 70.

Step (F): completely covering the outer peripheral surface of the base material layer 2, the adhesion layer 3, the outer peripheral surface of the first weather-resistant layer 70, and the outer periphery of the second weather-resistant layer 71 with a transparent protective adhesive film layer 8 The face forms a sealed state.

In this way, the weather-resistant layer 7 of the present invention is completely coated on the outer peripheral surface 61 of the metal conductive electrode 6 having the line pattern, and the product can be different from the conventional one to prevent the user from using the conductive electrode for touch control. The purpose of the use of years.

Further, in the process of the present invention, by using the shielding layer 5 having a predetermined wiring pattern to fabricate the wiring pattern of the metal conductive electrode 6, the conventional side etching phenomenon 15 can be reduced to cause the product of each conductive electrode. The phenomenon of extremely low yield and the inconsistency of the wire diameter, in other words, the present invention can achieve the production yield improvement of the above-mentioned metal conductive electrode 6, and control the two items of the wire diameter of each metal conductive electrode 6 .

In addition, referring to FIG. 10A to FIG. 10B, in the fifth preferred embodiment, the manufacturing step (A), the step (B), the step (C), and the step (D) are both fourth and fourth preferred. In the same embodiment, only step (E) and step (F) are different: removing the above-mentioned shielding layer 5 to form a metal conductive electrode 6 having a line pattern, and removing the adhesion between the metal conductive electrodes 6 by etching. Layer 3.

Step (F): forming a transparent protective adhesive film layer 8 to completely cover the outer peripheral surface of the base material layer 2, the adhesion layer 3, the outer peripheral surface 61 of the metal conductive electrode 6, and the outer peripheral surface of the weather resistant layer 7 A sealed form.

Referring to FIG. 11 to FIG. 13 , in the preferred embodiment of the present invention, the conductive electrode for touch control comprises: a substrate layer 2, at least one adhesion layer 3, at least one metal conductive electrode 6, at least a weathering layer 7 and the like, the substrate layer 2 may be selected from one of a glass, a plastic plate, and a plastic film, and the conductive electrode for touch control of the present invention may be on one side of the substrate layer 2 or It is made on at least one side.

The present invention is a base material layer 2 made of the selected base material layer 2, and a wiring pattern formed by at least one conductive adhesive layer 3 is disposed on the surface of the base material layer 2, and is further permeable to the adhesion. The layer 3 is connected to the surface of the substrate layer 2 by at least one metal conductive electrode 6.

When the touch conductive electrode product of the present invention is actually manufactured, the width of each of the conductive electrodes is between 0.1 μm and 10 μm, and if the metal conductive electrode 6 corresponds to the above-mentioned line pattern, the above-mentioned metal conductive electrode 6 is formed in a plan view. A conductive line exhibiting a grid-like structure, if viewed in a cross-sectional view, a weather-resistant layer 7 which is coated on the outer peripheral surface 61 of the metal conductive electrode 6 and exhibits a U-shaped structure, and a protective adhesive using a transparent state The film layer 8 is applied or bonded to the outer peripheral surface of the base material layer 2 and the weather resistant layer 7.

Referring to FIG. 8 , in the first preferred embodiment, the weather-resistant layer 7 is formed on the outer peripheral surface 61 of the metal conductive electrode 6 and is extended and connected to the adhesion layer 3 by the weather-resistant layer 7 . The outer peripheral surface, the weathering layer 7 finally exhibits a U-shaped structure, and the weathering layer 7 can also be set to have a blackening property of a darker color having both protection and shielding effects;

Or in the second preferred embodiment, as shown in FIG. 9, the weather-resistant layer 7 may be formed on the entire outer peripheral surface 61 of the metal conductive electrode 6 and have a U-shaped structure;

In the third preferred embodiment, as shown in FIG. 10, the metal conductive electrode 6 is first formed on the upper surface 60 of the metal conductive electrode 6 with respect to the first preferred embodiment. The first weather-resistant layer 70 is extended and joined to the outer peripheral surface of the adhesion layer 3 by the second weather-resistant layer 71 together with the outer peripheral surface 61 formed on the metal conductive electrode 6; The first and second weathering layers 70 and 71 can cooperate with the adhesion layer 3 to electrically seal each conductive line from the outside, and finally the first and second weathering layers 70 and 71 jointly exhibit a U-shaped structure;

In the fourth preferred embodiment (not shown), in the third preferred embodiment, the second weathering layer 71 is further formed only on the outer peripheral surface 61 of the metal conductive electrode 6 having the first weather resistant layer 70. Finally, the first weather-resistant layer 70 and the second weather-resistant layer 71 together have a U-shaped structure.

Furthermore, the thickness of the adhesion layer 3 of the present invention is set to be in the range of 0.01 μm to 1 μm; and the thickness of the metal conductive electrode 6 is set to be in the range of 0.1 μm to 6 μm; and the weatherable layer 7 is The thickness is set to be in the range of 0.01 μm to 1 μm.

Accordingly, the first weathering layer 70 and the second weathering resistance of the conductive conductive electrode of the present invention in the first to fourth preferred embodiments are different from those of the conventional metal conductive electrode 10 of FIG. The position distribution design of the layer 71 is such that the above-mentioned metal conductive electrode 6 and the adhesion layer 3 are coated in the weather-resistant layer 7, and the product of the present invention has an extremely high environment under high temperature, high humidity or low temperature environment. The weather resistance property is extremely high, and the capacitive sensitivity of the touch sensing sensor for products having a thinner width of the conductive electrode is also stable.

Moreover, the conductive electrode can be completely sealed by at least one protective adhesive film layer 8. The conductive electrode for touch control of the present invention can be surely prevented from being used by the user for a long time under the protective adhesive film layer 8. The above-mentioned conductive electrode covers the oxidation process of moisture in the air for a long time, and the invention can complete the oxidation resistance of the conductive electrode and prolong the service life of the conductive electrode for touch.

Finally, the weathering layer 7 formed on the surface of the metal conductive electrode 6 in the preferred embodiment of the present invention can be further improved with respect to the structure of the metal conductive electrode 10 of the prior art. Designed to have a blackening property of a dark color and a blackening layer 30 in the adhesion layer 3, a position of the weathering layer 7 on the first side of the substrate layer 2, and the above-mentioned second surface of the substrate layer 2 The positions of the blackening layer 30 are mutually staggered, and the structure is alternately designed to match the weathering layer 7 and the blackening layer 30 having blackening properties, so that the eyes of the user can be seen when the user's eyes are focused on the conductive electrode for touch control of the present invention. First, the weather-receiving layer 7 is viewed on the first surface, and when the human eye sees the gap between the weather-resistant layer 7 of the weather-resistant layer 7, the light enters the substrate layer 2 and reaches the blackening layer 30 on the second surface. Therefore, when the gap between the metal conductive electrode 10 and the metal conductive electrode 10 is seen by a conventional human eye, the conventional structure can directly visually recognize the metal conductive electrode 10 of the second surface. The structural design of the invention can avoid the effect that the metal conductive electrode 6 on the second surface is visible to the human eye to form a complete shielding effect. Therefore, the present invention further enhances and enhances the visual protection of the user's eyes to the surface of the touch panel interface. The interference fringe phenomenon (Moire) and the effect of inspecting the metal conductive electrode 6 under the touch panel interface.

The above-mentioned embodiments are merely intended to be illustrative of the present invention and are not intended to limit the scope of the invention, and the various modifications and modifications made by those skilled in the art in accordance with the scope of the invention and the description of the invention are still It is included in the scope of the following patent application.

[study]
10‧‧‧Metal conductive electrode
11‧‧‧Adhesive layer
12‧‧‧Substrate
13‧‧‧ weathering layer
14‧‧‧Electrode lines
15‧‧‧Side erosion
16‧‧‧Protective film
17‧‧‧Intermediary
18‧‧‧ Conductive substrate layer (invention)
2‧‧‧Substrate layer
3‧‧‧Adhesive layer
30‧‧‧Blackening layer
31‧‧‧Intermediary
32‧‧‧ conductive base layer
33‧‧‧Antioxidant layer
4‧‧‧ Groove line
5‧‧‧shading layer
6‧‧‧Metal conductive electrode
60‧‧‧ upper surface
61‧‧‧ outer perimeter
7‧‧‧ weathering layer
70‧‧‧First weathering layer
71‧‧‧second weathering layer
8‧‧‧Protective film layer

1 is a flow chart of a conventional method for manufacturing a metal conductive electrode; FIG. 2 is a schematic structural view of a conventional adhesive layer; FIG. 3A to FIG. 3B are flowcharts of a manufacturing method according to a first preferred embodiment of the present invention; FIG. 5 is a schematic structural view of a second preferred embodiment of the adhesive layer of the present invention; FIG. 6 is a schematic structural view of a third preferred embodiment of the adhesive layer of the present invention; FIG. 7A to FIG. 7B is a flow chart of a manufacturing method of a second preferred embodiment of the present invention; FIG. 8A to FIG. 8B are flowcharts of a manufacturing method of a third preferred embodiment of the present invention; FIG. 9A to FIG. 9B are a fourth preferred embodiment of the present invention; FIG. 10 is a flow chart of a manufacturing method according to a fifth preferred embodiment of the present invention; FIG. 11 is a schematic structural view of a first preferred embodiment of a conductive electrode for touch according to the present invention; FIG. 13 is a schematic structural view of a second preferred embodiment of the conductive electrode for touch control according to the present invention; FIG.

Claims (27)

A method for manufacturing a conductive electrode for touch control: (A) selecting a predetermined substrate to form a substrate layer from the substrate; (B) forming at least one adhesion layer on the surface of the substrate layer; (C) Forming a shielding layer having a groove line on the surface of the adhesion layer; (D) forming at least one metal conductive electrode in the groove line on the surface of the shielding layer; (E) removing the shielding layer to form a metal having a line pattern The conductive electrode and the adhesion layer between the metal conductive electrode line patterns are removed by etching, and at least one weather resistant layer is formed on the surface of the metal conductive electrode. The method for producing a conductive electrode for touch according to the first aspect of the invention, wherein the step (E) comprises forming a weather-resistant layer on an outer circumferential surface of the metal conductive electrode, and the weather-resistant layer is provided with the adhesion layer; The metal conductive electrode of the line pattern is sealed from the outside. The method for producing a conductive electrode for touch according to the second aspect of the invention, wherein the weather-resistant layer has a blackening property capable of shielding the metal conductive electrode. The method for producing a conductive electrode for touch according to claim 1, wherein the step (D) further forms a first weather-resistant layer on the upper surface of the metal conductive electrode. The method for producing a conductive electrode for touch according to claim 1, wherein the step (E) forms a second weather-resistant layer on the surface of the metal conductive electrode. The method for manufacturing a conductive electrode for touch according to the first aspect of the invention, wherein the step (B) further comprises forming an interposer on the surface of the substrate layer, forming a conductive underlayer on the surface of the interposer, and An anti-oxidation layer is formed on the surface of the conductive substrate layer to jointly construct the adhesion layer. The method for manufacturing a conductive electrode for touch according to claim 1, wherein the step (B) further forms a blackening layer on the surface of the substrate layer, and forms an interposer on the surface of the blackening layer. And forming a conductive base layer on the surface of the intermediate layer to jointly construct the adhesion layer. The method for manufacturing a conductive electrode for touch according to claim 1, wherein the step (B) further forms a blackening layer on the surface of the substrate layer, and forms an interposer on the surface of the blackening layer. Forming a conductive base layer on the surface of the intermediate layer and forming an oxidation resistant layer on the surface of the conductive base layer to jointly construct the adhesion layer. The method for producing a conductive electrode for touch according to claim 1, wherein the adhesion layer is selected from the group consisting of vacuum sputtering, electroless plating, or polymer coating, or a combination thereof. The method for manufacturing a conductive electrode for touch according to claim 1, wherein the shielding layer is processed by one of printing or photoresist exposure developing technology or a combination thereof. The method for manufacturing a conductive electrode for touch according to claim 1, wherein the metal conductive electrode is selected from the group consisting of vacuum sputtering, evaporation, electroless plating, electroplating, or conductive polymer coating. The combination method is used for the process. The method for producing a conductive electrode for touch according to the first aspect of the invention, wherein the weatherable layer is selected from the group consisting of electroless plating, electroplating, or conductive polymer coating, or a combination thereof. A conductive electrode for touch control, comprising: a substrate layer; at least one adhesion layer, forming a circuit pattern disposed on the surface of the substrate layer; a metal conductive electrode connected to the surface of the adhesion layer and forming a pattern corresponding to the line pattern a conductive line; and a weather-resistant layer connected to the outer peripheral surface of the metal conductive electrode to seal the conductive line from the outside. The conductive electrode for touch control according to claim 13, wherein the weather-resistant layer comprises a first weather-resistant layer formed on an upper surface of the circuit pattern of the metal conductive electrode, and a second weather-resistant layer further coated on the metal The outer peripheral surface of the wiring pattern of the conductive electrode is connected to the outer peripheral surface of the wiring pattern covered by the adhesion layer. The conductive electrode for touch control according to claim 13, wherein the adhesion layer comprises an interposer on a surface of the substrate layer, a conductive substrate layer formed on a surface of the interposer, and a conductive substrate The antioxidant layer on the surface of the layer. The conductive electrode for touch control according to claim 13, wherein the adhesion layer comprises a blackening layer formed on a surface of the substrate layer, an interposer formed on a surface of the blackening layer, and a layer formed on a conductive substrate layer on the surface of the above interposer. The conductive electrode for touch control according to claim 13, wherein the adhesion layer comprises a blackening layer formed on a surface of the substrate layer, and an interposer formed on a surface of the blackening layer, a conductive base layer on the surface of the intermediate layer and an oxidation resistant layer on the surface of the conductive base layer. The conductive electrode for touch control according to claim 13 , wherein the conductive electrode for touch control further comprises a protective adhesive film layer forming a transparent state, wherein the protective adhesive film layer is disposed on the substrate layer and The outer peripheral surface of the weathering layer. The conductive electrode for touch control according to claim 13, wherein the conductive line exhibits a grid-like structure, and the weather-resistant layer has a U-shaped structure. The conductive electrode for touch control according to claim 13, wherein the substrate layer may be composed of a soft material or a glass plate, and the soft material is a diester or polymethacrylic acid. Methyl, polycarbonate, polyphenylene fluorene, polyethyleneimine or polyimidamide. The conductive electrode for touch control according to claim 13, wherein the adhesion layer is made of one of a metal, a metal oxide, a polymer material, or a composite material thereof. The conductive electrode for touch control according to claim 21, wherein the metal is selected from the group consisting of tungsten, nickel, chromium, copper, vanadium, molybdenum, tin, zinc, cobalt, iron, titanium, aluminum, bismuth or One of the alloys is formed by oxidizing one of tungsten, nickel, chromium, copper, vanadium, molybdenum, tin, zinc, cobalt, iron, titanium, aluminum, cerium or an alloy thereof. The conductive electrode for touch control according to claim 13, wherein the metal conductive electrode is made of a metal such as gold, copper, silver, zinc, aluminum, nickel or tin, or an alloy thereof, or a conductive polymer. One of the materials is made. The conductive electrode for touch control according to claim 13, wherein the weather resistant layer is made of carbon, graphite, metal, metal oxide, a conductive polymer material or a composite material thereof. The conductive electrode for touch control according to claim 24, wherein the metal is selected from the group consisting of tungsten, nickel, chromium, copper, aluminum, silver, titanium, molybdenum, tin, zinc, cobalt, iron, bismuth or One of the alloys is formed by oxidizing one of tungsten, nickel, chromium, copper, aluminum, silver, titanium, molybdenum, tin, zinc, cobalt, iron, cerium or an alloy thereof. The conductive electrode for touch control according to claim 13, wherein the thickness of the adhesion layer is between 0.01 μm and 1 μm, the thickness of the metal conductive electrode is between 0.1 μm and 6 μm, and the thickness of the weathering layer is From 0.01 μm to 1 μm. The conductive electrode for touch control according to claim 13, wherein the width of each of the touch conductive electrodes is between 0.1 μm and 10 μm.