KR101129351B1 - Touch panel with strip coating preventing crack of substrate, touch window manufactured using the same and manufacturing methods thereof - Google Patents

Abstract

The present invention is a touch panel provided with a strip coating for preventing the crack of the substrate to form a crack coating on the substrate, such as indium tin oxide (ITO) film to prevent cracking due to bending, manufactured using the same The present invention relates to a touch window and a method of manufacturing the same. One embodiment of the invention the substrate is formed with a transparent electrode in at least two directions corresponding to the position coordinates of the touch; And a strip coating part disposed below at least one side of each side of the substrate and forming a round based on bending of each edge portion of the substrate to prevent cracking of the substrate.

Description

TOUCH PANEL WITH STRIP COATING PREVENTING CRACK OF SUBSTRATE, TOUCH WINDOW MANUFACTURED USING THE SAME AND MANUFACTURING METHODS THEREOF}

The present invention relates to a touch panel and a touch window for preventing cracks caused by bending of the substrate. More specifically, a touch panel having a strip coating part for preventing a substrate crack, which is formed by forming a strip coating part on a substrate such as an indium tin oxide (ITO) film to prevent cracking due to bending, manufactured using the same To a touch window and a method of manufacturing the same.

The capacitive touch panel is coated with a transparent special conductive metal on both sides of the glass, and when a voltage is applied to the four corners of the screen, a high frequency is generated on the surface of the touch screen, and the controller generates a high frequency waveform that changes when a finger or the like is touched. It is a touch panel that analyzes and recognizes touch points.

In addition, the capacitive touch panel can be divided into two types: a single layer method using a single sheet of Indium Tin Oxide (ITO) film and a dual layer using two sheets of ITO film. There is a way.

The single layer or dual layer type touch panel has a direct relationship with the problem of screen enlargement of a mobile phone having the same.

That is, one of the methods for implementing the screen enlargement of the mobile phone may be a method of enlarging the size of the screen at the same size, which causes a problem of minimizing the touch edge of the touch panel.

However, the touch edge is a portion where the wiring for transmitting the touch signal is located, and the touch edge thereof is limited in its reduction. Nevertheless, when the wiring part of the touch panel is folded mechanically, there is a problem that a crack occurs in the wiring and the ITO film.

1 is a plan view showing a plane of a conventional capacitive touch panel. As illustrated in FIG. 1, the area of the touch panel including the plurality of transparent electrode cells 120 and 220 and the edge parts 110 and 210 is generally larger than the screen area V. FIG. Accordingly, the bezel part (not shown) including the edge parts 110 and 210 may eventually increase the area of the entire display device.

Therefore, it may be considered to fold the edge parts 110 and 210 mechanically in order to increase the relative area ratio of the screen area V. As described above, there is a problem that may cause cracks in the wiring L and the ITO film. have.

In parallel with the problem to solve the above problem, the flexible display (active display), which has been actively researched in recent years, is inevitably linked to a collapsible touch panel. Therefore, there is a need for research on a touch panel in which cracks do not occur even if the ITO film is bent.

The present invention has been made by the necessity as described above, an object of the present invention is to provide a touch panel with a strip coating for preventing the crack of the substrate that can prevent the crack of the substrate when folding the substrate, such as ITO film, using the The present invention provides a manufactured touch window and a method of manufacturing the same.

In addition, an object of the present invention is to provide a flexible touch panel to be able to fold a variety of substrates, such as ITO film without cracks.

An object of the present invention as described above is a substrate formed with a transparent electrode in at least two directions corresponding to the position coordinates of the touch; And a strip coating part disposed below at least one side of each side of the substrate to form a round based on bending of each edge portion of the substrate to prevent cracking of the substrate. It can be achieved by providing a touch panel.

The transparent electrodes are first transparent electrodes and second transparent electrodes respectively corresponding to two directions, and the substrate is a lower substrate and an upper substrate on which the first transparent electrode and the second transparent electrode are formed, respectively, and the strip coating part of the lower substrate. It may be located at the bottom.

It is preferable to further include an insulating layer formed between the lower substrate and the upper substrate.

It is preferable that an insulating layer is a light transparent adhesive film.

The two directions may be one axis and a vertical axis perpendicular to one axis respectively corresponding to the touch on the upper substrate.

The first transparent electrode and the second transparent electrode may each be a transparent electrode formed in a specific cell pattern.

It is preferable that a board | substrate is an ITO film.

Each edge portion may be a wiring portion in which signal lines for drawing out a signal generated from the transparent electrode to the outside are wired.

And, the bend is preferably formed to minimize the size of the bezel portion including the wiring portion.

The bend preferably has a right angle of bend, and the round is formed to have an arc having a minimum diameter of 1 mm to 10 mm based on the bend.

The strip coating is preferably formed of rubber ink.

The strip coating preferably has a strip width of 1 mm to 10 mm.

On the other hand, an object of the present invention is a substrate formed with transparent electrodes in at least two directions corresponding to the position coordinates of the touch; A transparent window layer formed on the substrate; A light transparent adhesive film formed between the substrate and the transparent window layer; And a strip coating part disposed below at least one side of each side of the substrate to form a round based on bending of each edge portion of the substrate to prevent cracking of the substrate. By providing a touch window.

The transparent electrodes are first transparent electrodes and second transparent electrodes respectively corresponding to two directions, and the substrate is a lower substrate and an upper substrate on which the first transparent electrode and the second transparent electrode are formed, respectively, and the strip coating part of the lower substrate. It may be located at the bottom.

Meanwhile, an object of the present invention is to prepare a lower substrate having a first transparent electrode and an upper substrate having a second transparent electrode as another category (S110); Attaching the lower substrate and the upper substrate with an insulating layer therebetween (S120); The strip coating unit is coated on the bottom along at least one side of each side of the lower substrate bonded to prevent cracking of the lower substrate and the upper substrate (S130); It can be achieved by providing a method of manufacturing the panel.

In the strip coating unit coating step (S130), it is preferable that the strip coating unit prevents cracks by forming rounds based on bending of each edge portion of the lower substrate and the upper substrate.

Strip coating unit coating step (S130), it is preferable that the strip coating unit is formed by screen printing the rubber ink on the lower substrate.

Meanwhile, an object of the present invention is to prepare a lower substrate on which the first transparent electrode is formed and an upper substrate on which the second transparent electrode is formed (S210); And (S220) bonding the lower substrate and the upper substrate to each other with an insulating layer interposed therebetween, wherein the preparing of the lower substrate (S210) may include cracking according to bending of the edge portion of the lower substrate and the upper substrate. It may be achieved by providing a method for manufacturing a touch panel with a strip coating for preventing a substrate crack comprising a step (S210) is coated on the bottom along at least one side of each side of the lower substrate to prevent the.

Strip coating unit coating step (S210), it is preferable that the rubber coating is a step of forming the strip coating by screen printing on the lower substrate.

Meanwhile, an object of the present invention is to prepare a lower substrate on which the first transparent electrode is formed and an upper substrate on which the second transparent electrode is formed (S310); Bonding the lower substrate and the upper substrate to each other with an insulating layer interposed therebetween (S320); Coating the strip coating unit on the lower side along at least one side of each side of the lower substrate bonded to prevent cracking of the lower substrate and the upper substrate (S330); And a step (S340) of laminating the transparent window layer on the upper substrate. The method may be achieved by providing a method of manufacturing a touch window provided with a strip coating part for preventing a substrate crack.

In addition, an object of the present invention is to prepare a lower substrate on which the first transparent electrode is formed and an upper substrate on which the second transparent electrode is formed (S410); Attaching the lower substrate and the upper substrate with an insulating layer therebetween (S420); And a transparent window layer stacked on the upper substrate (S430), wherein the preparing of the lower substrate (S410) includes a strip coating unit to prevent cracking due to bending of each edge of the lower substrate and the upper substrate. It may be achieved by providing a method of manufacturing a touch window provided with a strip coating for preventing a substrate crack, including the step (S412) is coated on the bottom along at least one side of each side of the lower substrate.

According to one embodiment of the present invention as described above, there is an effect that can prevent the substrate crack when folding the strip coating to form a substrate such as ITO film.

In addition, the touch panel including a substrate such as an ITO film may provide flexibility to prevent cracking of the substrate due to bending, thereby implementing a flexible touch panel.

1 is a plan view showing a plane of a conventional capacitive touch panel,
Figure 2a is a cross-sectional view showing a cross section of a first embodiment of a touch panel provided with a strip coating of the present invention,
Figure 2b is a cross-sectional view showing a cross section of a second embodiment of the touch panel provided with a strip coating of the present invention,
3 is a diagram illustrating an operation state showing a round forming action of a strip coating part according to bending of an edge part in an embodiment of a touch panel having a strip coating part according to the present invention;
4 is a flowchart sequentially showing a first embodiment of a method of manufacturing a touch panel with a strip coating unit according to the present invention;
5 is a flowchart sequentially showing a second embodiment of the method of manufacturing a touch panel with a strip coating unit of the present invention;
Figure 6 is a cross-sectional view showing a cross section of an embodiment of a touch window provided with a strip coating of the present invention,
7 is a flowchart sequentially illustrating a first embodiment of a method of manufacturing a touch window provided with a strip coating unit according to the present invention;
8 is a flowchart sequentially showing a second embodiment of the method of manufacturing a touch window provided with the strip coating unit of the present invention.

<Configuration of Touch Panel>

<J Example 1 >

Figure 2a is a cross-sectional view showing a cross section of a first embodiment of a touch panel provided with a strip coating of the present invention. As shown in FIG. 2A, the first embodiment includes one substrate (hereinafter referred to as a mono substrate) on which transparent electrodes in at least two directions are formed, and at least one side of the mono substrate 2 below. Formed strip coatings 4, 6.

According to the first embodiment of the present invention, when the mono substrate 2 is folded based on the positions of the strip coating portions 4 and 6, the strip coating portions 4 and 6 form a round in the mono substrate 2. This prevents damage to the substrate due to cracks.

Hereinafter, the configuration of the first embodiment of the touch panel of the present invention will be described.

The mono board | substrate 2 is a conductive film in which the conductive thin film for electrode formation was formed. ITO films with low resistivity and high transmittance can be used. Specific electrodes in the form of cells may be formed in two or more directions corresponding to touch coordinate positions on the mono substrate 2, and electrodes in each direction are formed to be insulated from each other.

In addition, the first and second transparent electrodes formed on the mono substrate 2 are configured to allow a predetermined current to flow corresponding to each direction corresponding to the touch coordinate position (for example, the position according to the rectangular coordinate). When the current (or electric field) changes by the touch of an object (eg, a finger) having a configuration, the touch position is detected by detecting a change in the current (or electric field) of the touch portion. Here, the first and second transparent electrodes may be formed with a specific pattern of the first and second transparent electrodes such as the arrangement of the transparent electrode cells 120 and 220 shown in FIG. 1, but the patterns may be variously configured. .

The strip coating portions 4 and 6 are formed by coating a thin, long rubber-like material on the lower side along one side of each side of the mono substrate 2. It serves to form a round in the mono substrate 2 to be bent relative to the strip coating (4, 6). The formation method of the strip coating parts 4 and 6 is mentioned later in the manufacturing method.

Here, the bending of the mono substrate 2 is to increase the ratio of the screen area V as shown in FIG. 1 in the touch device (for example, mobile phone, not shown) to which the first embodiment of the present invention is mounted. The portion of the mono substrate 2 is preferably the edge portions 110 and 210 shown in FIG. 1. In this case, the strip coating portions 4 and 6 at the boundary between the screen region V and the edge portions 110 and 210. ) Is formed.

The strip coatings 4, 6 are shown in the first embodiment shown in FIG. 2A, but this is only one embodiment of the invention, and only one strip coating 3 along one side is provided. It may be formed, or may be formed only at the boundary between the wiring portion (L) and the screen area (V) shown in FIG.

<J 2 Example >

Figure 2b is a cross-sectional view showing a second embodiment of the touch panel provided with a strip coating of the present invention. As shown in FIG. 2B, the second embodiment of the present invention includes a lower substrate 10 having a first transparent electrode (not shown), a light transparent adhesive film 30 used as an insulating layer, and a second transparent electrode ( And the upper substrate 20 and the strip coating parts 40 and 42 formed thereon.

According to the second embodiment of the present invention, when the lower substrate 10 and the upper substrate 20 are folded on the basis of the strip coating portions 40 and 42, the strip coating portions 40 and 42 are each lower substrate 10. ) And the upper substrate 20 to form a round to protect both the lower substrate 10 and the upper substrate 20 from crack breakage.

Hereinafter, the configuration of the second embodiment of the touch panel of the present invention will be described.

The lower substrate 10 and the upper substrate 20 are conductive films on which a conductive thin film for electrode formation is formed. The ITO film can be used is the same as the mono substrate 2 of the first embodiment described above. However, in the first embodiment, the first and second transparent electrodes are formed on one substrate, whereas in the second embodiment, the first and second transparent electrodes are formed separately to correspond to the respective substrates 10 and 20. Is the difference.

In addition, the first and second transparent electrodes formed on the lower substrate 10 and the upper substrate 20, respectively, have a configuration for detecting touch coordinate positions similarly to the mono substrate 2 in the first embodiment.

The light transparent adhesive film 30 serves as an insulating layer that prevents an electrode short circuit and provides a predetermined dielectric constant between the lower substrate 10 and the upper substrate 20. An optical clear adhesive film (Optical Clear Adhesive) is used as the film and the lower substrate 10 and the upper substrate 20 are bonded to each other.

The strip coating parts 40 and 42 are formed by coating a rubber material having a thin and long linear structure on one side of each side of the lower substrate 10. It serves to form a round in the lower substrate 10 and the upper substrate 20 that is bent based on the strip coating (40, 42). The formation method of the strip coating parts 40 and 42 is mentioned later.

Here, the bending of the lower substrate 10 and the upper substrate 20 is the lower substrate 10 and the upper substrate 20 to be bent in the touch device (for example, mobile phone, not shown) is equipped with a second embodiment of the present invention 1 is preferably the edge portions 110 and 210 shown in FIG. 1, and the strip coating portions 40 and 42 are formed at the boundary between the screen region V and the edge portions 110 and 210. Same as the example.

It is the same as that of the first embodiment that the strip coating parts 40 and 42 can be formed with only one strip coating part 40 along one side.

<Strip Coating  Action>

Figure 3 is a functional state diagram showing the round forming action of the strip coating portion according to the bending of the edge portion in the first and second embodiments of the touch panel with a strip coating portion of the present invention. Referring to FIG. 3, in order to explain the operation of the first and second embodiments of the present invention, the above-described configuration is briefly shown as a sectional view of the touch panel 1. Since the operation of the strip coating unit in the first and second embodiments is the same, the following description will be made based on the second embodiment shown in FIG. 2B.

As shown in FIG. 3, the upper substrate 20 and the lower substrate 10 of the strip coating portion 40 are rounded (R) in a situation where the edge portion 110 shown in FIG. 1 is bent at a right angle. It is bent. Here, the round (R) means the curvature made by the touch panel 1 is bent, there may be a difference in the diameter of the curvature formed on the opposite side of the attachment surface and the attachment surface of the strip coating portion 40, Considering that the touch panel 1 is a thin film, the diameter according to the size of the strip coating part 40 may be determined from 1 to 10 mm. As a result, the round R minimizes cracks in the upper substrate 20 and the lower substrate 10 due to bending.

The round R formed according to the bending of the touch panel 1 has an arc having a predetermined diameter. When the upper substrate 20 and the lower substrate 10, which are the components of the embodiment, are made of ITO film, ITO The film is manufactured to withstand bending of about 5 mm in diameter so that the strip coating 40 is also formed to have a width of about 5 mm. However, this may be changed depending on whether cracks occur due to bending of the ITO film, which is one component. In general, the size or width of the strip coating part 40 may be variously formed.

<Touch panel manufacturing method>

Since the manufacturing method for the first embodiment of the touch panel described above is included in the manufacturing method of the second embodiment of the touch panel, the manufacturing method will be described below based on the configuration of the second embodiment of the touch panel. Reference numerals of the configuration will be described with reference to FIG. 2B.

<J Example 1 >

4 is a flowchart sequentially illustrating a first embodiment of a method of manufacturing a touch panel with a strip coating unit according to the present invention. Referring to FIG. 4, first, a lower substrate 10 having a first transparent electrode and an upper substrate 20 having a second transparent electrode are prepared (S110).

Next, the lower substrate 10 and the upper substrate 20 are bonded with the insulating layer interposed therebetween (S120).

Finally, the strip coating part 40 is coated on the lower side along at least one side of each side of the lower substrate 10 bonded to prevent cracking of the lower substrate 10 and the upper substrate 20 (S130). A method of manufacturing a touch panel provided with a strip coating unit for preventing a substrate crack is performed.

Here, the coating step (S130) of the strip coating portion 40 is formed through a screen printing process while forming a thin and long line structure using a rubber ink. That is, when the size (or width) of the strip coating portion 40 is determined based on the bending strengths of the upper substrate 20 and the lower substrate 10, the ink paste is transferred to the lower substrate 10 through the screen. By adjusting the printing time or printing pressure to form a strip coating portion 40 of the desired width and the desired height.

In addition, an inkjet printing process using an inkjet line may be used, but it is a suitable printing process when the width of the strip coating part 40 is very small. In this case, the strip coating part 40 may be formed by printing rubber ink in small dots and narrowing the interval between the printed dots.

<J 2 Example >

5 is a flowchart sequentially illustrating a second embodiment of a method of manufacturing a touch panel with a strip coating unit according to the present invention. Referring to FIG. 5, first, a lower substrate on which a first transparent electrode is formed and an upper substrate on which a second transparent electrode is formed are prepared (S210).

In this case, the lower substrate preparing step (S210) is performed by the strip coating part 40 to prevent cracks caused by bending of the edge portions 110 and 210 of the lower substrate 10 and the upper substrate 20. It includes a step (S210) is coated on the lower portion along at least one side of each side of). That is, unlike the first embodiment in which the strip coating part 40 is formed after the touch panel 1 is manufactured, the difference is that the strip coating part 40 is formed in the preparation step S210 of the lower substrate 10.

Next, the lower substrate 10 and the upper substrate 20 are bonded to each other with an insulating layer interposed therebetween (S220), thereby manufacturing a touch panel having a strip coating part for preventing a substrate crack.

Here, the coating step S210 of the strip coating part 40 is performed in the same manner as the coating step S130 of the strip coating part 40 of the first embodiment described above.

<Touch Of windows  Configuration>

Figure 6 is a cross-sectional view showing an embodiment of a touch window provided with a strip coating of the present invention. One embodiment of the touch window includes one embodiment of a touch panel. Therefore, it can be configured to include both the first and second embodiments of the above-described touch panel configuration.

Although the description will be made based on the second embodiment of the touch panel shown in FIG. 2B, it will be apparent to those skilled in the art that the configuration of the first embodiment is not excluded. Therefore, the same reference numerals are used for the second embodiment of the touch panel shown in FIG. 2B among the configurations of the touch window shown in FIG. 6, and hereinafter with the second embodiment of the touch panel shown in FIG. 2B. Only the differences are described.

As shown in FIG. 6, in the exemplary embodiment of the touch window provided with the strip coating part, the transparent adhesive film 32 is stacked on the upper substrate 20, and the transparent window layer 50 is formed thereon. The light-transparent adhesive film 32 may use an OCA film, and the transparent window layer 50 may use polyethylene terephthalate (PET) or a glass substrate.

The light-transparent adhesive film 32 acts as an adhesive between the upper substrate 20 and the transparent window layer 50, and the transparent window layer 50 protects the touch panel 1 and at the same time touches a predetermined electrostatic force. It acts as an insulator in relation to objects with capacities (eg fingers). In addition, the transparent window layer 50 is a configuration for inserting a film (not shown) and the like printed with various characters or pictures between the touch panel (1).

<Touch Of windows  Manufacturing Method>

Herein, a manufacturing method of an embodiment of a touch window including the configuration of the second embodiment of the above-described touch panel will be described. However, it will be apparent to those skilled in the art that the touch window including the configuration of the first embodiment of the touch panel is included in the touch window manufacturing method described below. Therefore, a description will be given with reference to an embodiment of the touch window illustrated in FIG. 6.

<J Example 1 >

7 is a flowchart sequentially illustrating a first embodiment of a method of manufacturing a touch window provided with a strip coating unit according to the present invention. Referring to FIG. 7, the lower substrate 10 on which the first transparent electrode is formed and the upper substrate 20 on which the second transparent electrode is formed are prepared (S310).

Next, the lower substrate 10 and the upper substrate 20 are bonded with the insulating layer interposed therebetween (S320).

Next, the strip coating unit 40 is coated on the lower side along at least one side of each side of the lower substrate bonded to prevent cracking of the lower substrate and the upper substrate (S330). Here, the coating step (S330) of the strip coating unit 40 is the same as described above in the coating step (S130) of the strip coating unit 40 in the first embodiment of the manufacturing method of the touch panel (1) described above.

Finally, since the transparent window layer 50 is stacked on the upper substrate 20 (S340), a method of manufacturing a touch window provided with a strip coating part for preventing a substrate crack is performed. Here, the step (S335) of laminating the light-transparent adhesive film 32 on the upper substrate 20 between the lamination step (S340) and the strip coating portion 40 coating step (S330) of the transparent window layer 50 May be performed first.

<J 2 Example >

8 is a flowchart sequentially showing a second embodiment of the method of manufacturing a touch window provided with the strip coating unit of the present invention. Referring to FIG. 8, first, a lower substrate on which a first transparent electrode is formed and an upper substrate on which a second transparent electrode is formed are prepared (S410).

In this case, the coating step S412 of the strip coating unit 40 is the same as described above in the second embodiment of the manufacturing method of the touch panel 1, and thus will be omitted.

Next, the lower substrate 10 and the upper substrate 20 are bonded to each other with an insulating layer therebetween (S420).

Finally, as the transparent window layer 50 is stacked on the upper substrate 20 (S430), a method of manufacturing a touch window provided with a strip coating part for preventing a substrate crack is performed. In this case, as in the first embodiment of the method of manufacturing the transparent window, the light-transparent adhesive film 32 is formed between the laminating step S430 of the transparent window layer 50 and the bonding step S420 of the substrates 10 and 20. (20) The stacking step S425 may be performed first.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that the invention may be practiced. Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all aspects. In addition, the scope of the present invention is indicated by the appended claims rather than the detailed description above. Also, it is to be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention.

1: touch panel
2: mono substrate
10: lower substrate
20: upper substrate
30, 32: light transparent adhesive film
4, 6, 40, 42: strip coating
50: transparent window layer
110: first branch
120, 220; Transparent electrode cell
210: second edge

Claims (21)

A substrate having transparent electrodes in at least two directions corresponding to the position coordinates of the touch; And
Strip coating unit for preventing the cracks of the substrate comprising a; strip coating portion which is located along at least one side of each side of the substrate to prevent the crack of the substrate by forming a round based on the bending of each edge portion of the substrate Equipped touch panel.
The method of claim 1,
The transparent electrodes are first transparent electrodes and second transparent electrodes respectively corresponding to the two directions,
The substrate is a lower substrate and an upper substrate on which the first transparent electrode and the second transparent electrode are formed, respectively.
The strip coating unit is a touch panel provided with a strip coating for preventing a substrate crack, characterized in that located under the lower substrate.
The method of claim 2,
The touch panel with a strip coating for preventing a substrate crack further comprising an insulating layer formed between the lower substrate and the upper substrate.
The method of claim 3,
The insulating layer is a touch panel with a strip coating for preventing a substrate crack, characterized in that the light transparent adhesive film.
The method of claim 2,
And the two directions are one axis corresponding to a touch on the upper substrate and a vertical axis perpendicular to the one axis, respectively.
The method of claim 2,
The first transparent electrode and the second transparent electrode is a touch panel with a strip coating for preventing a substrate crack, characterized in that each of the transparent electrode formed in a specific cell pattern.
The method of claim 1,
The substrate is a touch panel with a strip coating for preventing a substrate crack, characterized in that the ITO film.
The method of claim 1,
Each edge part is a touch panel with a strip coating part for preventing a substrate crack, characterized in that the wiring portion is a wiring line for drawing out the signal generated from the transparent electrode to the outside.
The method of claim 8,
The bending is a touch panel provided with a strip coating for preventing a substrate crack, characterized in that formed to minimize the size of the bezel including the wiring portion.
The method of claim 1,
The bending has a right angle bending angle,
The round panel is a touch panel with a strip coating for preventing a substrate crack, characterized in that formed to have an arc having a minimum diameter of 1 mm to 10 mm based on the bending.
The method of claim 1,
The strip coating unit is a touch panel provided with a strip coating for preventing a substrate crack, characterized in that formed with a rubber ink.
The method of claim 1,
The strip coating unit is a touch panel with a strip coating for preventing a substrate crack, characterized in that the strip width is formed of 1 mm ~ 10 mm.
A substrate having transparent electrodes in at least two directions corresponding to the position coordinates of the touch;
A transparent window layer formed on the substrate;
A light transparent adhesive film formed between the substrate and the transparent window layer; And
Strip coating unit for preventing the cracks of the substrate comprising a; strip coating portion which is located along at least one side of each side of the substrate to prevent the crack of the substrate by forming a round based on the bending of each edge portion of the substrate; Provided touch window.
The method of claim 13,
The transparent electrodes are first transparent electrodes and second transparent electrodes respectively corresponding to the two directions,
The substrate is a lower substrate and an upper substrate on which the first transparent electrode and the second transparent electrode are formed, respectively.
The strip coating unit is a touch window provided with a strip coating for preventing a substrate crack, characterized in that located under the lower substrate.
Preparing a lower substrate on which the first transparent electrode is formed and an upper substrate on which the second transparent electrode is formed (S110);
Bonding the lower substrate and the upper substrate to each other with an insulating layer interposed therebetween (S120);
Strip coating is coated on the lower portion along at least one side of each side of the bonded lower substrate in order to prevent cracking of the lower substrate and the upper substrate (S130); Method of manufacturing a provided touch panel.
16. The method of claim 15,
In the strip coating unit coating step (S130),
And wherein the strip coating part prevents the crack by forming a round based on bending of each edge portion of the lower substrate and the upper substrate, wherein the strip coating part has a strip coating part for preventing a substrate crack.
16. The method of claim 15,
The strip coating unit coating step (S130),
The method of manufacturing a touch panel with a strip coating unit for preventing a substrate crack, characterized in that the step of forming the strip coating by rubber ink is screen-printed on the lower substrate.
Preparing a lower substrate on which the first transparent electrode is formed and an upper substrate on which the second transparent electrode is formed (S210); And
And the lower substrate and the upper substrate bonded to each other with an insulating layer therebetween (S220).
Preparation step of the lower substrate (S210),
The strip coating unit is coated on the lower side along at least one side of each side of the lower substrate in order to prevent cracks due to bending of the edge portion of the lower substrate and the upper substrate (S210); Method for manufacturing a touch panel with a strip coating for.
19. The method of claim 18,
The strip coating unit coating step (S210),
The method of manufacturing a touch panel with a strip coating portion for preventing a substrate crack, characterized in that the step of forming the strip coating portion by rubber printing the screen on the lower substrate.
Preparing a lower substrate on which the first transparent electrode is formed and an upper substrate on which the second transparent electrode is formed (S310);
Bonding the lower substrate and the upper substrate to each other with an insulating layer interposed therebetween (S320);
A strip coating part coated on the lower side along at least one side of each side of the bonded lower substrate to prevent cracking of the lower substrate and the upper substrate (S330); And
The transparent window layer is laminated on the upper substrate (S340); comprising a method of manufacturing a touch window provided with a strip coating for preventing a substrate crack.
Preparing a lower substrate on which the first transparent electrode is formed and an upper substrate on which the second transparent electrode is formed (S410);
Bonding the lower substrate and the upper substrate to each other with an insulating layer interposed therebetween (S420); And
The transparent window layer is stacked on the upper substrate (S430); including,
Preparation step (S410) of the lower substrate,
The strip coating unit is coated on the lower side along at least one side of each side of the lower substrate in order to prevent cracks due to bending of the edge portion of the lower substrate and the upper substrate (S412); Method of manufacturing a touch window provided with a strip coating for.

Images