WO2015023070A1

WO2015023070A1 - Touch panel and manufacturing method therefor

Info

Publication number: WO2015023070A1
Application number: PCT/KR2014/006818
Authority: WO
Inventors: 박준영; 정주현; 이성림; 송영진; 노수천; 한원희
Original assignee: 주식회사 티메이
Priority date: 2013-08-14
Filing date: 2014-07-25
Publication date: 2015-02-19
Also published as: KR20150019571A

Abstract

The present invention relates to a touch panel which implements a one-layer touch sensor by performing jumping connections in the edge region of the touch panel, excluding the window region of the touch panel. The present invention can reduce the thickness of a touch panel, reduce costs for raw materials and processes, simplify the existing manufacturing process of a touch panel, and therefore improve the productivity of a touch panel by producing the one-layer touch sensor.

Description

Touch panel and manufacturing method

The present invention relates to a method of manufacturing a touch panel, and more particularly, to a touch panel and a method of manufacturing a touch sensor, which implements a touch sensor of one layer by performing jumping connection of an edge region of the touch panel except for a window region of the touch panel. will be.

In general, the touch panel is an input device that can be easily used by anyone by interactively and intuitively operating a computer or the like by touching a button with a finger.

Such a touch panel has a resistive method, a capacitive method, an infrared method, an ultrasonic method, and the like, depending on a method of sensing a touch, and a resistive method is currently used, but it is advantageous for durability and light and simple characteristics in the future. The use of capacitive methods will be increased.

Such capacitive touch panels, especially touch screens, have a structure of indium tin oxide (ITO) composed of a transparent conductive layer on a transparent insulator film such as polyethylene terephthalate (PET) or glass, and a silver paste on the edge of the ITO. A pad made of a lead wire is laminated up and down by adding an adhesive layer or an insulator layer.

Here, ITO is composed of X-axis ITO having X-axis electrostatic electrodes formed at equal intervals and Y-axis ITO having Y-axis electrostatic electrodes formed at equal intervals so as to be stacked.

The touch screen formed as above is a controller that receives a touch signal according to a user's touch and outputs a coordinate signal.

As described above, the electrostatic electrodes arranged side by side on the X axis or the Y axis are arranged at different distances from the lead wire. Since different electrostatic electrodes are disposed between them, each electrostatic electrode has different electrical characteristics when viewed from the part where the lead wire is connected.

Hereinafter, the prior art of such a touch panel will be described with reference to FIGS. 1 to 4.

1 is a view showing an X-axis electrode pattern in a conventional capacitive touch panel, Figure 2 is a view showing a Y-axis electrode pattern in a conventional capacitive touch panel, Figure 3 is a conventional capacitive touch panel 4 is a view illustrating a state in which the X-axis electrode pattern and the Y-axis electrode pattern are coalesced, and FIG. 4 is a view illustrating a layer structure in a state in which the X-axis electrode pattern and the Y-axis electrode pattern are coalesced in a conventional capacitive touch panel. to be.

FIG. 1 is a diagram illustrating a conventional bottom pattern layer, and shows an X-axis electrode pattern, and FIG. 2 is a diagram illustrating a conventional top pattern layer, and a Y-axis electrode pattern.

A top pattern having the X-axis electrostatic electrode 10 and a top pattern having the Y-axis electrostatic electrode 20 as shown in FIGS. 1 and 2 are respectively fabricated and laminated between layers, and then a window is attached to manufacture a touch panel. . The touch panel completed by this manufacturing process shows a plan view in FIG.

Referring to FIG. 3, a conventional capacitive touch panel has a bottom pattern having an X-axis electrostatic electrode 10 as a driving unit and a top pattern having a Y-axis electrostatic electrode 20 as a sensing unit at the top of the panel. It is formed evenly on the surface, the

connection electrodes

30, 40 were formed on one side.

The layer structure of the conventional capacitive touch panel is shown in FIG. 4.

Referring to FIG. 4, in the related art, two ITO films used for the top pattern and the bottom pattern were required because the top pattern and the bottom pattern were manufactured.

In addition, the OCA must be added to the top of the ITO film essentially, two ITO films were used, so two OCAs were required.

Accordingly, the conventional touch panel has a disadvantage in that it is expensive because two sheets of ITO film and OCA are used to make one touch panel product.

In the conventional touch panel, since two layers are used as the sensing unit and the driving unit, thickness reduction is difficult, high raw material cost and high process cost occur, and the transmittance is poor.

In the conventional touch panel, when the top pattern layer and the bottom pattern layer are laminated, the defect rate is measured for each pattern layer because the sheet by sheet method is used instead of the cell by cell method. Yield was not good by In particular, it is difficult to meet the alignment tolerance when laminating each floor, the yield is not good, and tight tolerance management has a disadvantage.

Therefore, the development of the structure of the touch panel that can solve this problem is required.

In order to solve the above problems, the present invention provides a touch panel and a manufacturing method for implementing a touch sensor of one layer by performing a jump connection of the edge region of the touch panel except for the window region of the touch panel. There is a purpose.

In order to achieve the above object, the manufacturing method of the touch panel according to the characteristics of the present invention,

One end of each of the second axis electrostatic electrodes corresponding to the window area of the touch panel and forming a first electrostatic electrode pattern representing the plurality of first axis electrostatic electrodes and crossing the first axis electrostatic electrodes at a predetermined distance apart from each other Forming a plurality of second bus electrodes, which are edge regions of the touch panel connected with the first metal layer;

Forming a transparent photosensitive material of a transparent material on an upper surface of the touch panel, and then opening an area where a metal electrode portion of each second bus electrode connected to one end of each second axis electrostatic electrode of the transparent photosensitive material is located; ;

Forming a second metal layer on an upper surface of the touch panel; And

Forming a second electrostatic electrode pattern of each second axis electrostatic electrode formed of a second metal layer to electrically connect one end of each second axis electrostatic electrode to a metal electrode portion of each second bus electrode; do.

Method for manufacturing a touch panel according to a feature of the invention,

Forming a first electrostatic electrode pattern corresponding to the window area of the touch panel and representing the plurality of first axis electrostatic electrodes as a first metal layer;

After forming a transparent photosensitive material of a transparent material on the upper surface of the touch panel, the metal electrode portion of the first bus electrode, which is an edge region of the touch panel connected to one end of each of the first axis electrostatic electrodes, of the transparent photosensitive material Opening the located area;

Forming a second metal layer on an upper surface of the touch panel; And

When the second metal layer is selectively removed, a second electrostatic electrode pattern representing each of the second axis electrostatic electrodes crossing the first axis electrostatic electrode at a predetermined distance, and a plurality of first bus electrodes are formed to form a respective first electrode. Electrically connecting one end of the uniaxial electrostatic electrode and the metal electrode portion of each first bus electrode.

Method for manufacturing a touch panel according to a feature of the invention,

The touch panel corresponds to the window area of the touch panel and includes a first metal layer, forms a first electrostatic electrode pattern representing a plurality of first axis electrostatic electrodes, and is connected to one end of each first axis electrostatic electrode. A plurality of first bus electrodes forming a plurality of first bus electrodes that are seat regions, and a plurality of first bus electrodes that are edge regions of the touch panel connected to one end of each of the second axis electrostatic electrodes crossing the first axis electrostatic electrodes at a predetermined distance and crossing each other; Forming two bus electrodes;

Forming a second metal layer on an upper surface of the touch panel; And

Forming a second electrostatic electrode pattern of each of the second axis electrostatic electrodes formed of a second metal layer to electrically connect one end of each second axis electrostatic electrode to the metal electrode portion of each second bus electrode; Include.

Method for manufacturing a touch panel according to a feature of the invention,

After forming the transparent photosensitive material of the transparent material on the upper surface of the touch panel, the metal electrode portion of the first bus electrode, which is the edge region of the touch panel connected to one end of each first axis electrostatic electrode among the transparent photosensitive materials, is positioned. Opening the area;

Forming a second metal layer on an upper surface of the touch panel; And

When the second metal layer is selectively removed, a second electrostatic electrode pattern representing each of the second axis electrostatic electrodes crossing the first axis electrostatic electrode at a predetermined distance from each other and connected to one end of each of the second axis electrostatic electrodes Forming a plurality of second bus electrodes that are edge regions of the touch panel, and forming a plurality of first bus electrodes to electrically connect one end of each first axis electrostatic electrode and a metal electrode portion of each first bus electrode. The step of connecting to.

Touch panel according to a feature of the invention,

A first insulator layer made of an organic insulator or an inorganic insulator;

A first electrostatic electrode pattern representing a plurality of first axis electrostatic electrodes, which are window regions, and a plurality of first bus electrodes, which are edge regions of a touch panel connected to one end of each first axis electrostatic electrode, respectively; A first metal layer forming a plurality of second bus electrodes that are edge regions of a touch panel connected to one end of each of the second axis electrostatic electrodes crossing the first axis electrostatic electrode at a predetermined distance from each other;

A transparent photosensitive material of a transparent material, which is formed on an upper surface of the first metal layer and has an open area in which a metal electrode portion of each of the second bus electrodes connected to one end of each second axis electrostatic electrode of the transparent photosensitive material is located; Insulator layer;

It is formed on the upper surface of the second insulator layer and forms a second electrostatic electrode pattern of each second axial electrostatic electrode to electrically connect one end of each second axial electrostatic electrode to the metal electrode portion of each second bus electrode. And a second metal layer to be formed.

Touch panel according to a feature of the invention,

A first insulator layer made of an organic insulator or an inorganic insulator;

A first metal layer forming a first electrostatic electrode pattern representing a plurality of first axis electrostatic electrodes that are window regions;

A transparent photosensitive material made of a transparent material and formed on an upper surface of the first metal layer, and an area where a metal electrode part of a first bus electrode, which is an edge region of a touch panel connected to one end of each first axis electrostatic electrode, is located in the transparent photosensitive material. The open second insulator layer;

A second electrostatic electrode pattern formed on an upper surface of the second insulator layer, the second electrostatic electrode pattern representing each second axial electrostatic electrode intersecting a predetermined distance from each first axial electrostatic electrode, and one end of each second axial electrostatic electrode; A plurality of second bus electrodes, which are edge regions of the touch panels to be connected, are formed, and a plurality of first bus electrodes are formed to form one end of each first axis electrostatic electrode and a metal electrode portion of each first bus electrode. And a second metal layer that is electrically connected.

By the above-described configuration, the present invention can reduce the thickness by manufacturing a one-layer touch sensor, there is an effect that can lower the raw material cost and process cost.

The present invention is a technique for replacing a transparent electrode using a low-resistance metal of a fine pattern metal mesh structure can reduce the process cost and improve visibility.

The present invention does not jump and bridge the bridge in the view area (the window area of the touch panel), and jumps and bridges the outside of the window by using the bus electrode that is the outside area of the window area. There is an effect of improving reception sensitivity and visibility.

The present invention not only improves the visibility of the view area, but also increases the reception sensitivity by forming only one bridge and a jumping point.

The present invention has the effect of improving the productivity by simplifying the manufacturing process of the existing touch panel.

1 is a view showing an X-axis electrode pattern in a conventional capacitive touch panel.

2 illustrates a Y-axis electrode pattern in a conventional capacitive touch panel.

3 is a view illustrating a state in which an X-axis electrode pattern and a Y-axis electrode pattern are coalesced in a conventional capacitive touch panel.

4 is a diagram illustrating a layer structure in a state in which an X-axis electrode pattern and a Y-axis electrode pattern are combined in a conventional capacitive touch panel.

5 to 7 are diagrams illustrating a method of manufacturing a touch panel using a window outer jumping bridge technology according to an embodiment of the present invention in a layer structure from the side.

8 to 12 are plan views illustrating a method of manufacturing a touch panel using a window outer jumping bridge technology according to an embodiment of the present invention.

13 is a view showing an example of a metal mesh structure of a fine pattern according to an embodiment of the present invention.

14 and 15 are side views illustrating a method of manufacturing a touch panel using a window outer jumping bridge technology according to another embodiment of the present invention.

16 and 17 are plan views illustrating a method of manufacturing a touch panel using an outer window jumping bridge technology according to another exemplary embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

5 to 7 are diagrams illustrating a method of manufacturing a touch panel using a window outer jumping bridge technology according to an embodiment of the present invention in a layer structure from the side, and FIGS. 8 to 12 are window diagrams according to an embodiment of the present invention. The figure which shows the manufacturing method of the touchscreen using the outer jumping bridge technology in plan view.

5 to 7 illustrate a layer structure on the X axis side of the touch panel in the method of manufacturing the touch panel.

As shown in FIGS. 5A and 8, the method for manufacturing a touch panel according to the embodiment of the present invention forms the metal layer 120 on the upper surface of the insulator layer 110. Here, the insulator layer 110 is formed of an organic insulator or an inorganic insulator of a transparent material, and the organic insulator is polyimide or polyethylene terephthalate (PET), polyethylenenaphthalate (PEN), polycarbonate, PC), acrylic plastic material, and the inorganic insulator is made of glass material and optically treated glass material.

The metal layer 120 is a metal mesh material, and is a driving part (Transfer, Tx) to which a driving voltage of a touch panel is applied, and APC, Cu, Cu alloy, Ag, Ag alloy, Ni + Cr, and Ni + Ni alloy. , Mo / Ag, Mo / Al / Mo, Ni + Cr / Cu / Ni + Cr, Ni alloy / Cu, Ni alloy / Cu / Ni alloy, Mo / APC, Cu / Ni + Cu + Ti, Ni + Cu + The concept includes all conductive materials such as Ti / Cu / Ni + Cu + Ti and carbon, and is formed by a known technique of printing, deposition, paste, and coating.

For example, the metal layer 120 may be formed of a silver paste, and various methods may be performed, such as depositing copper.

The metal layer 120 may use various metals, and is preferably copper or aluminum in consideration of ease of manufacture and electrical conductivity.

As the method of forming the metal layer 120 on the insulator layer 110, a known method such as laminating, vapor deposition, or coating may be used.

In the mutual capacitance method of the touch panel, when a driving voltage is applied to the driving unit, a mutual cap is formed between the driving unit and the sensing unit, and the sensing unit detects a change in the voltage value of the mutual cap to determine whether the touch is performed and the touch position. Will be detected. The sensing unit (Receive, Rx) detects whether the touch panel is touched and the touch position by the change of the voltage value, and the driving unit (Transfer, Tx) is applied with the driving voltage of the touch panel.

Next, as shown in (b), (c), (d), (e), and (e) and FIG. 6 of FIG. 5, the present invention is a metal layer by a process of photolithography. The electrostatic electrode pattern 121 and the wiring electrode pattern 122 are formed by selectively removing the 120.

The electrostatic electrode pattern 121 is a drive unit to which a driving voltage of the touch panel is applied, and has a metal mesh structure of a fine pattern, and corresponds to a window area (region where a screen is displayed) of the touch panel, and a plurality of Y-axis electrostatic electrodes. A Y-axis bar pattern indicating a user's touch pattern area is shown.

The wiring electrode pattern 122 is a metal circuit representing a bus electrode in an edge region excluding the window region of the touch panel. The wiring electrode pattern 122 includes a metal electrode portion and a metal electrode signal connected to one end of each of the Y-axis electrostatic electrodes. It includes a lead wire electrode connected to a printed circuit board (FPCB) to detect and control a user's touch pattern and a metal electrode portion of the FPCB bonding area in contact with the flexible circuit board.

The wiring electrode pattern 122 of the embodiment of the present invention is spaced apart from each other by a predetermined distance from the first wiring electrode pattern 122a connected to one end of each of the Y-axis electrostatic electrodes and each Y-axis electrostatic electrode in a right direction. The second wiring electrode pattern 122b connected to one end of the plurality of X-axis electrostatic electrodes is formed through selective etching of the metal layer 120.

The electrostatic electrode pattern 121 and the wiring electrode pattern 122 are made of a metal layer 120.

The metal mesh formation method describes a photolithography method in which a circuit is formed using a metal etching chemical after metal deposition, but is not limited thereto, a photolithography method using a silver halide material, a photolithography method using a silver halide diffusion transfer method, There is an imprint method that digs a groove into PET to fill a conductive metal in the groove, a gravure offset method that prints by a circuit transfer method, a reverse offset method, a laser printing method, and a non-contact printing method using an inkjet printer.

In other words, in the process of photolithography, when the first photosensitive material 140 is formed on the upper surface of the metal layer 120, and UV irradiation is performed using the patterned first artwork film 142, the first photosensitive material 140 is formed. A pattern is formed (exposure, FIG. 5 (b)), a pattern of the first photosensitive material 140 is formed using a weak alkaline solution (developing, FIG. 5 (c)), and metal etching and peeling process Thus, the electrostatic electrode pattern 121 and the wiring electrode pattern 122 are formed (FIGS. 5D and 6E).

Here, the first photosensitive material 140 is formed by coating a liquid photoresist or laminating a dry film.

Although the present invention illustrates a patterned artwork film, the present invention is not limited thereto. Any pattern tool having a pattern may be used, and an exposure process may be performed using equipment that directly implements the pattern without the pattern tool. It may be.

In addition, the process of forming the first photosensitive material 140 is a coating process in the case of using a liquid type silicon, epoxy material in addition to laminating the dry film, a deposition process in the case of using an insulating material of SiO ₂ , TiO ₂ Can be used.

Since the process of photolithography below undergoes the same laminating, exposure, development, etching, and peeling processes, the description thereof will be omitted.

Next, as shown in FIGS. 6F and 10, after forming the electrostatic electrode pattern 121 and the wiring electrode pattern 122 formed of the metal layer 120, the upper surface of the touch panel is formed. To form a transparent photosensitive material 130 of a transparent material (laminating, coating or deposition process). Here, the transparent photosensitive material 130 may include a transparent dry film as an example of a photosensitive transparent insulating material.

Next, as shown in (f), (g) and FIG. 10 of FIG. 6, the present invention is the outer surface of the transparent photosensitive material 130 formed on the upper surface of the touch panel by the photolithography exposure and development process. The region 160 is selectively removed to open.

Here, the outer region 160 refers to a region where the metal electrode portion of the second wiring electrode pattern 122b connected to one end of the plurality of X-axis electrostatic electrodes is located.

In more detail, in the present invention, when UV irradiation is performed using the second artwork film 144 having a pattern for opening the outer region 160 of the window, the pattern of the transparent photosensitive material 130 is formed (exposure). , Using the weak alkaline solution to form an open pattern on the transparent photosensitive material 130 (development).

Here, in the pattern formed on the transparent photosensitive material 130, as shown in FIG. 6G, an area corresponding to the window outer region 160 of the touch panel is opened among the transparent photosensitive materials 130 formed on the upper surface of the touch panel. Mean the pattern.

The present invention illustrates an artwork film having a pattern, but the present invention is not limited thereto. Any pattern tool having a pattern in which the outer region 160 is opened may be used, and the pattern may be directly implemented without the pattern tool. Equipment may also be used to perform the exposure process.

Next, as shown in FIGS. 6H and 11, the present invention forms the second metal layer 150 on the upper surface of the touch panel.

Next, as shown in (i), (j), (k), and (m) of FIG. 7 and FIG. 12, the present invention selectively selects the second metal layer 150 by a process of photolithography. It is removed to form the electrostatic electrode pattern 151 of the fine metal mesh structure.

Here, the electrostatic electrode pattern 151 is a sensing unit that senses whether the touch panel is touched and the touch position, and represents an X-axis bar pattern representing a plurality of X-axis electrostatic electrodes.

Of course, the electrostatic electrode pattern 121 may serve as a driver and the electrostatic electrode pattern 151 may serve as a sensing unit.

In other words, in the process of photolithography, when the first photosensitive material 140 is formed on the upper surface of the second metal layer 150, and UV irradiation is performed using the artwork film 146 having the pattern, the first photosensitive material 140 is formed. A pattern is formed (exposure, FIG. 7 (i)), and the pattern of the first photosensitive material 140 is developed using a weak alkaline solution (developing, FIG. 7 (j)), and the metal etching and peeling process The electrostatic electrode pattern 151 is formed by (Fig. 7 (k), Fig. 7 (m)).

In detail, when the second metal layer 150 of the portion not corresponding to the X-axis bar pattern is removed using the first photosensitive material 140 (metal layer etching process), the metal mesh structure of the fine pattern The electrostatic electrode pattern 151 is formed to be electrically connected to one end of each of the X-axis electrostatic electrodes and the electrode portion of the metal layer 120 positioned in the outer region 160 of the window.

Here, the electrode portion of the metal layer 120 is a metal electrode portion connected to one end of each X-axis electrostatic electrode in the second wiring electrode pattern 122b.

That is, the photolithography process performs dry film laminating (or liquid photoresist coating), exposure, development, metal layer etching, and peeling process.

As shown in FIG. 13, the

electrostatic electrode patterns

121 and 151 have a metal mesh structure and have a fine structure through a plurality of first linear electrode portions and a plurality of second linear electrode portions intersecting with the plurality of first linear electrode portions. Consists of a pattern.

In the present invention, the plurality of X-axis electrostatic electrodes and the Y-axis electrostatic electrodes are formed in a bar pattern, but the present invention is not limited thereto and may be variously applied, such as a square, a circle, a diamond, a polygon, and a random pattern.

The present invention can reduce the thickness by manufacturing a one-layer touch sensor through the manufacturing method of the touch panel has the effect of lowering the raw material cost and process cost.

According to the present invention, after performing the photolithography process shown in FIGS. 7 (i), (j), (k), and (m) of FIG. If each of the X-axis capacitive electrodes of the X-axis bar pattern is not electrically connected, reinforcement is performed.

In this case, the reinforcing work is performed by applying a conductive material such as silver paste or a conductive polymer to the outer region 160 of the window by non-contact conductive ink printing, silk screen printing, gravure printing, or the like. One end of the X-axis electrostatic electrode is electrically connected.

14 and 15 illustrate a method of manufacturing a touch panel using a window outside jumping bridge technology according to another embodiment of the present invention in a layer structure in a side view, and FIGS. 16 and 17 illustrate another embodiment of the present invention. FIG. 2 is a plan view illustrating a method of manufacturing a touch panel using a window outer jumping bridge technology.

As shown in FIGS. 14A, 14B, and 16A, in the method of manufacturing the touch panel according to another exemplary embodiment, the metal layer 120 is disposed on the upper surface of the insulator layer 110. The electrostatic electrode pattern 121 made of the metal layer 120 is formed by a process of photolithography.

Herein, the electrostatic electrode pattern 121 has an X-axis bar pattern representing a plurality of X-axis electrostatic electrodes as a fine pattern metal mesh structure.

In detail, when the metal layer 120 of the portion not corresponding to the X-axis bar pattern is removed using the second photosensitive material 147 (metal layer etching process), the plurality of Xs that are the X-axis bar pattern A capacitive electrode is formed.

Next, as shown in (c), (d) of Figure 14 and (b), (c) of Figure 16, the present invention after forming a transparent photosensitive material 170 on the upper surface of the touch panel, The outer shadow area 160 of the transparent photosensitive material 170 is selectively removed and opened by photolithography exposure and development processes.

Here, the outer region 160 refers to a region where the metal electrode portion of the first wiring electrode pattern 152b connected to one end of the plurality of X-axis electrostatic electrodes is located.

In more detail, the present invention forms a pattern of the transparent photosensitive material 170 when UV irradiation is performed using the third artwork film 148 having a pattern for opening the outer region 160 of the window (exposure). , Using the weak alkaline solution to form an open pattern on the transparent photosensitive material 170 (development).

Next, as shown in FIGS. 15E and 17D, the present invention forms the second metal layer 150 on the upper surface of the touch panel.

Next, as shown in FIGS. 15F, 15G, and 17E, the present invention selectively removes the second metal layer 150 by a photolithography process to prevent electrostatic discharge. The electrode pattern 151 and the wiring electrode pattern 152 are formed.

The electrostatic electrode pattern 151 is a metal mesh structure of a fine pattern, which corresponds to the window area (the area where the screen is displayed) of the touch panel, and a plurality of Ys which cross each other at right angles at a predetermined distance from each X-axis electrostatic electrode. A Y-axis bar pattern representing an axial electrostatic electrode is shown.

The wiring electrode pattern 152 includes a second wiring electrode pattern 152a connected to one end of each of the Y-axis electrostatic electrodes, and a plurality of X-axis electrostatic crossings in a right direction at a predetermined distance from each of the Y-axis electrostatic electrodes. The first wiring electrode pattern 152b connected to one end of the electrode is formed through selective etching of the second metal layer 150. That is, the photolithography process is performed by dry film laminating, exposure, development, metal etching, peeling process.

In detail, the present invention selectively removes the second metal layer 150 in the portion not corresponding to the Y-axis bar pattern by using the third photosensitive material 149 and does not correspond to the wiring electrode pattern 152. The second metal layer 150 of the non-part is selectively removed.

For this reason, the present invention provides the Y-axis bar pattern of the plurality of Y-axis electrostatic electrodes, the second wiring electrode pattern 152a connected to each of the Y-axis electrostatic electrodes, and the first wiring electrode pattern connected to the plurality of X-axis electrostatic electrodes. 152b and are electrically connected to one end of each X-axis electrostatic electrode and the electrode portion of the metal layer 150 located at the outer region 160 of the window.

The embodiments of the present invention described above are not implemented only by the apparatus and / or method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiments of the present invention, a recording medium on which the program is recorded, and the like. Such implementations may be readily implemented by those skilled in the art from the description of the above-described embodiments.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

[Description of the code]

110: insulator layer

120: metal layer

121: electrostatic electrode pattern

122: wiring electrode pattern

122a first wiring electrode pattern

122b: second wiring electrode pattern

130: transparent photosensitive material

140: first photosensitive material

142: first artwork film

144: second artwork film

147: second photosensitive material

148: Third Artwork Film

149: third photosensitive material

150: second metal layer

151: electrostatic electrode pattern

152: wiring electrode pattern

152a second wiring electrode pattern

152b: first wiring electrode pattern

160: outside the window

170: transparent photosensitive material

Claims

In the manufacturing method of a touch panel,

Forming a first electrostatic electrode pattern corresponding to the window area of the touch panel and representing a plurality of first axis electrostatic electrodes, and crossing each of the first axis electrostatic electrodes at a predetermined distance from the first axis electrostatic electrode; Forming a plurality of second bus electrodes, which are edge regions of the touch panel, connected to one end of the touch panel as a first metal layer;

After forming a transparent photosensitive material of a transparent material on the upper surface of the touch panel, a region in which the metal electrode portion of each of the second bus electrode is connected to one end of each of the second axis electrostatic electrode of the transparent photosensitive material Opening the door;

Forming a second metal layer on an upper surface of the touch panel; And

Forming a second electrostatic electrode pattern of each of the second axis electrostatic electrodes formed of the second metal layer to electrically connect one end of each of the second axis electrostatic electrodes to the metal electrode portion of each of the second bus electrodes; Steps to

Method of manufacturing a touch panel comprising a.
In the manufacturing method of a touch panel,

Forming a first electrostatic electrode pattern corresponding to the window area of the touch panel and representing a plurality of first axis electrostatic electrodes as a first metal layer;

After forming a transparent photosensitive material of a transparent material on the upper surface of the touch panel, the metal of the first bus electrode which is an edge region of the touch panel connected to one end of each of the first axis electrostatic electrode of the transparent photosensitive material Opening an area where the electrode portion is located;

Forming a second metal layer on an upper surface of the touch panel; And

When the second metal layer is selectively removed, a second electrostatic electrode pattern representing each of the second axis electrostatic electrodes crossing the first axis electrostatic electrode at a predetermined distance and intersecting with each other is formed, and the plurality of first bus electrodes are formed. Electrically connecting one end of each of the first axis electrostatic electrodes and a metal electrode portion of each of the first bus electrodes;

Method of manufacturing a touch panel comprising a.
In the manufacturing method of a touch panel,

The touch corresponding to the window area of the touch panel and formed of a first metal layer, forming a first electrostatic electrode pattern representing a plurality of first axis electrostatic electrodes, and connected to one end of each of the first axis electrostatic electrodes. An edge of the touch panel is formed to form a plurality of first bus electrodes, which are edge regions of the panel, and are connected to one end of each of the second axis electrostatic electrodes crossing the first axis electrostatic electrode at a predetermined distance. Forming a plurality of second bus electrodes that are regions;

After forming a transparent photosensitive material of a transparent material on the upper surface of the touch panel, a region in which the metal electrode portion of each of the second bus electrode is connected to one end of each of the second axis electrostatic electrode of the transparent photosensitive material Opening the door;

Forming a second metal layer on an upper surface of the touch panel; And

Forming a second electrostatic electrode pattern of each of the second axis electrostatic electrodes formed of the second metal layer to electrically connect one end of each of the second axis electrostatic electrodes to the metal electrode portion of each of the second bus electrodes; Steps to

Method of manufacturing a touch panel comprising a.
In the manufacturing method of a touch panel,

Forming a first electrostatic electrode pattern corresponding to the window area of the touch panel and representing a plurality of first axis electrostatic electrodes as a first metal layer;

After forming a transparent photosensitive material of a transparent material on the upper surface of the touch panel, the metal of the first bus electrode which is an edge region of the touch panel connected to one end of each of the first axis electrostatic electrode of the transparent photosensitive material Opening an area where the electrode portion is located;

Forming a second metal layer on an upper surface of the touch panel; And

Selectively removing the second metal layer, a second electrostatic electrode pattern representing each of the second axis electrostatic electrodes crossing the first axis electrostatic electrode at a predetermined distance, and a side of each of the second axis electrostatic electrodes; Forming a plurality of second bus electrodes that are edge regions of the touch panel connected to an end, and forming the plurality of first bus electrodes to form one end of each of the first axis electrostatic electrodes and the first bus Electrically connecting the metal electrode portions of the electrode

Method of manufacturing a touch panel comprising a.
The method according to any one of claims 1 to 4,

The plurality of first axis electrostatic electrodes and the plurality of second axis electrostatic electrodes have a fine pattern through a plurality of first linear electrode portions and a plurality of second linear electrode portions intersecting with the plurality of first linear electrode portions. The manufacturing method of the touch panel which forms a metal mesh structure.
The method according to claim 1 or 3,

Forming the plurality of second bus electrodes,

Wherein each of the first axis electrostatic electrode and each of the second bus electrodes is spaced apart by a predetermined distance in a horizontal direction.

Method of manufacturing a touch panel comprising a.
The method according to claim 1 or 3,

After electrically connecting the metal electrode portions of each second bus electrode,

When the metal electrode portion of each of the second bus electrodes and the one end of each of the second shaft electrostatic electrodes are not electrically connected, a conductive material is applied to the open area to apply the metal of the second bus electrode. Electrically connecting the electrode portions

Method of manufacturing a touch panel comprising a.
In the touch panel,

A first insulator layer made of an organic insulator or an inorganic insulator;

Forming a first electrostatic electrode pattern representing a plurality of first axis electrostatic electrodes, which are window regions, and a plurality of first bus electrodes, which are edge regions of the touch panel connected to one end of each of the first axis electrostatic electrodes; A first metal layer forming a plurality of second bus electrodes that are edge regions of the touch panel connected to one end of each of the second axis electrostatic electrodes crossing the first axis electrostatic electrode at a predetermined distance from each other;

A transparent photosensitive material made of a transparent material is formed on an upper surface of the first metal layer, and an area in which the metal electrode portion of each of the second bus electrodes connected to one end of each of the second axis electrostatic electrodes of the transparent photosensitive material is located is An open second insulator layer;

A second electrode pattern formed on the second insulator layer and formed on an upper surface of the second insulator layer to form one end of each of the second axis electrostatic electrodes and a metal electrode portion of each of the second bus electrodes. Second metal layer electrically connected to the

Touch panel comprising a.
In the touch panel,

A first insulator layer made of an organic insulator or an inorganic insulator;

A first metal layer forming a first electrostatic electrode pattern representing a plurality of first axis electrostatic electrodes that are window regions;

A transparent photosensitive material of a transparent material, which is formed on an upper surface of the first metal layer and is a metal electrode of a first bus electrode which is an edge region of the touch panel connected to one end of each of the first axis electrostatic electrodes of the transparent photosensitive material A second insulator layer in which the region where the portion is located is open;

A second electrostatic electrode pattern formed on an upper surface of the second insulator layer, the second electrostatic electrode pattern representing each second axial electrostatic electrode intersecting a predetermined distance from the first axial electrostatic electrode, and each of the second axial electrostatic electrodes Forming a plurality of second bus electrodes that are edge regions of the touch panel connected to one end, and forming the plurality of first bus electrodes to form one end of each of the first axis electrostatic electrodes and the respective first Second metal layer electrically connected to the metal electrode portion of the bus electrode

Touch panel comprising a.
The method according to claim 8 or 9,

The plurality of first axis electrostatic electrodes and the plurality of second axis electrostatic electrodes have a fine pattern through a plurality of first linear electrode portions and a plurality of second linear electrode portions intersecting with the plurality of first linear electrode portions. Touch panel to form a metal mesh structure.