TWI638296B - Method for fabricating a touch screen panel - Google Patents

Abstract

This application discloses a method for fabricating a touch screen panel. According to an embodiment of the present invention, a method for manufacturing a touch screen panel includes: preparing a transparent electrode layer mother substrate; preparing a polarizing film mother substrate; and corresponding to each touch screen in the polarizing film mother substrate Each of the pad portions of the panel forms a first pad penetration portion; and the polarizing film mother substrate is attached to the transparent electrode layer substrate to form a touch screen panel mother substrate.

Description

Touch screen panel manufacturing method

The present invention relates to the art of planar display devices and, more particularly, to a method of fabricating a touch screen panel using a simplified process.

Generally, the touch screen device refers to a device that recognizes a coordinate value of a contact point when a user's finger or an object such as a stylus touches a specific position displayed on the screen, and the touch screen is provided with the touch. The electronic device of the screen is controlled. According to the driving and sensing method and the technology used, the touch screen device can have different types of screens, such as a capacitive touch screen, a resistive touch screen, a surface acoustic wave touch screen using infrared or ultrasonic waves, or the like.

The touch screen device comprises a display panel and a touch screen panel attached to the display panel. In addition, the touch screen panel comprises a transparent electrode layer formed with a sensing electrode pattern, and a polarizing film on the transparent electrode layer. Here, the polarizing film has a function of blocking light reflection to improve visibility.

Conventionally, a touch screen panel is manufactured by cutting a transparent electrode laminate mother substrate and a polarizing film mother substrate into individual transparent electrode laminates and polarizing films each having a product unit size; and attaching each other. The touch screen panel prepared as a product unit size is attached to a display panel of a product unit to manufacture a touch screen device. In this example, if the touch screen panel mother substrate contains tens to hundreds of touch screen panels, it is necessary to attach the attachment method to the display panel hundreds of times, so that the entire manufacturing method is complicated and the manufacturing cost is high. Time-consuming (see Korean Patent Application Publication No. 10-2013-0030594 published on March 27, 2013).

Having considered the above, it is an object of the present invention to provide a method for manufacturing a touch screen panel in a simplified overall manufacturing method.

The above object of the present invention is achieved by the following features: (1) A method for manufacturing a touch panel, comprising: (A) preparing a transparent electrode layer mother substrate; (B) preparing a polarizing film mother substrate And forming a first pad penetration portion at each position corresponding to a pad portion of each touch screen panel in the polarizing film mother substrate; and (C) attaching the polarizing film mother substrate to the transparent portion The electrode layer board mother substrate is used to manufacture a touch screen panel mother substrate. (2) The method according to (1) above, wherein the step (B) comprises: depositing a protective film on a polarizer to prepare a polarizing plate; and the pad corresponding to the touch screen panel in the polarizing plate a portion of the portion forming a first -1 pad penetration portion; and depositing a retardation film on the transparent electrode layer plate mother substrate, and corresponding to the pad portion of the touch screen panel in the retardation film A position forms a first --2 pad penetration portion. (3) The method according to (1) above, wherein the step (B) comprises: depositing a protective film on a polarizer to prepare a polarizing plate; depositing a retardation film on a surface of the polarizing plate; A first pad penetration portion is formed at a position of the polarizing plate and the retardation film corresponding to the pad portion of the touch screen panel. (4) The method according to (1) above, wherein the step (B) comprises: depositing a protective film on a polarizer to prepare a polarizing plate; and corresponding to the touch screen panel in the polarizing plate One of the pad portions is positioned to form a first pad penetration portion. (5) The method according to (1) above, further comprising: (D) attaching the touch screen panel mother substrate to the display panel mother substrate after the step (C). (6) The method according to (5) above, wherein the step (D) comprises: forming a second pad penetration in each position of a display pad portion corresponding to each of the display panels in the touch panel mother substrate And attaching the touch screen panel mother substrate to the display panel mother substrate. (7) The method according to (5) above, further comprising: after the step (D), (E) cutting the touch screen panel mother substrate and the display panel mother substrate into individual touch screen units. (8) The method according to (7) above, further comprising: after the step (E), (F) connecting a first flexible printed circuit board (FPCB) to be exposed through the first pad penetration portion to An outer pad portion and a second FPCB connected to the display pad portion exposed to the outside through the second pad penetrating portion. (9) The method according to (1) above, wherein the step (A) comprises: applying a liquid resin on a substrate and hardening it to prepare a base film; forming a plurality of first sensing layers on the base film a pattern and a plurality of second sensing patterns; depositing an insulating layer on the base film to cover the plurality of first sensing patterns and the plurality of second sensing patterns, and the plurality of layers spaced apart from each other in the insulating layer Forming a plurality of contact holes respectively on the two sensing patterns; filling a conductive material in the plurality of contact holes to form a plurality of bridge patterns, wherein the bridge patterns are located on the insulating layer to electrically connect the plurality of mutually spaced The second sensing pattern. (10) The method according to (9) above, wherein the step of forming the bridge pattern comprises: filling a plurality of contact holes with a conductive material to form a layer on the insulating layer to form the plurality of first sensing patterns a conductive layer electrically connected to the plurality of second sensing patterns. (11) The method according to (1) above, wherein the step (A) comprises: applying a liquid resin on a substrate and hardening it to prepare a base film; forming a plurality of bridge patterns on the base film; Depositing an insulating layer on the underlayer to cover the plurality of bridge patterns, and forming a plurality of contact holes on the plurality of bridge patterns at a predetermined interval in the insulating layer; and forming a plurality of holes on the insulating layer a first sensing pattern and filling a plurality of contact holes with a conductive material to form a plurality of second sensing patterns spaced apart from each other, thereby passing through each of the contact holes filling the conductive material and the plurality of bridge patterns Electrical connection. (12) The method according to (1) above, wherein the step (A) comprises: preparing a base film; forming a plurality of bridge patterns on the base film; and depositing an insulating layer on the base film to cover the plurality of a bridge pattern, and forming a plurality of contact holes on the plurality of bridge patterns at a predetermined interval in the insulating layer; and forming a plurality of first sensing patterns on the insulating layer, and filling one of the plurality of contact holes The conductive material is formed to form a plurality of second sensing patterns spaced apart from each other, whereby each of the contact holes filling the conductive material and the plurality of bridge patterns are electrically connected to each other. (13) The method according to (11) or (12) above, wherein the step of forming the plurality of bridge patterns comprises: forming a conductive layer on the base film spaced apart from the plurality of bridge patterns. (14) The method according to (1) above, wherein the step (A) comprises: forming a second -1 pad penetration portion in each position of the transparent electrode layer substrate mother substrate corresponding to each of the display pad portions And the step (B) comprises: forming a second - 2 pad penetration portion at each position corresponding to each of the display pad portions in the polarizing film mother substrate.

According to the embodiment of the present invention, the pad penetration portion may be first formed in the polarizing plate mother substrate, and the polarizing plate mother substrate itself may be attached to the transparent electrode layer substrate mother substrate to prepare a touch screen panel mother. Substrate. Therefore, the number of bonding processes in the entire manufacturing process of the touch screen panel can be significantly reduced, and the entire production process can be simplified. In addition, another pad penetration portion is formed in the touch screen panel mother substrate, and the touch screen panel mother substrate is attached to the display panel mother substrate, which can smoothly perform subsequent processes and further simplify the entire production process.

Preferred embodiments of the present invention are described below with reference to Figures 1 through 12 of the accompanying drawings.

In the description of the present invention, a detailed description of known functions and architectures for unnecessarily obscuring the meaning of the present invention is omitted. In addition, the words or words used in the specification and claims should not be construed as limiting the meaning of the words, and the appropriate concepts that should be understood are those in which the inventors define the terms of the invention based on the best way that others can understand.

However, those skilled in the art will understand that this embodiment is intended to be illustrative, and is not intended to limit the scope of the disclosure. Therefore, it is apparent to those skilled in the art that various changes and modifications of the embodiments are possible within the scope and spirit of the invention, and are appropriately included in the scope defined by the scope of the claims. (First embodiment)

According to a first embodiment of the present invention, a method for manufacturing a touch screen panel described with reference to FIGS. 1 through 7 is described.

FIG. 1 is a plan view showing a mother substrate of a touch screen panel including a plurality of touch screen panels.

As shown in FIG. 1 , the touch screen panel mother substrate 10 includes a plurality of touch screen panels 20 . Although FIG. 1 depicts twelve touch screen panels 20 formed on the touch screen panel mother substrate 10, it is not limited thereto, and twelve pixels can be formed on the touch screen panel mother substrate 10. Various numbers of touch screen panels 20. Each of the touch screen panels 20 includes a touch screen 21 having a first sensing pattern and a second sensing pattern, a position detecting line 23 (one end portion of which is connected to the first and second sensing portions), and The pad portion 25 to which the other end portion of the position detecting line 23 is connected. In the method for manufacturing a touch panel as described below, the manufacturing process is performed in a unit of the touch screen panel mother substrate 10.

The manufacturing method of the touch screen panel generally includes: 1) preparing a transparent electrode layer mother substrate, 2) bonding the polarizing film mother substrate to the transparent electrode layer mother substrate, and manufacturing a touch screen panel mother substrate, 3) The touch screen panel mother substrate is bonded to the display panel mother substrate, and 4) the touch screen panel mother substrate and the display panel mother substrate are respectively cut into individual touch screen units.

2 is a cross-sectional view showing a method of forming a mother substrate of a transparent electrode layer in a method of manufacturing a touch panel according to a first embodiment of the present invention.

Referring to Fig. 2, a base film 104 is deposited on a substrate member 102 ((a) of Fig. 2). The base member 102 can use a glass substrate, but is not limited thereto, and any of the conventional substrates of the related art can be used. A liquid resin (for example, polyimine (PI) or the like) may be applied to the base member 102 to deposit the base film 104, and the liquid resin is hardened. Here, the bottom member 102 and the bottom film 104 may have the same size as the touch screen panel mother substrate 10 depicted in FIG. 1, but for convenience of description, only the portion corresponding to one touch screen panel 20 is depicted.

Next, on the under film 104, a first sensing pattern 106-1 and a second sensing pattern 106-2 are formed ((b) of FIG. 2). The first and second sensing patterns 106-1 and 106-2 may be made of a transparent electrode such as indium tin oxide (ITO), silver nanowire (AgNW), metal mesh, graphene, organic electrode, or the like. .

Fig. 3 is a partial plan view showing a state in which the first and second sensing patterns 106-1 and 106-2 are formed on the base film 104. Referring to FIG. 3, the first and second sensing patterns 106-1 and 106-2 may densely form a regular diamond shape with each other. However, the shapes of the first and second sensing patterns 106-1 and 106-2 are not limited to the diamond shape, and may be formed into various shapes other than the diamond shape.

Here, a plurality of columns of first sensing patterns 106-1 are formed on the base film 104, and first sensing patterns 106-1 arranged in the same column are formed to be connected to each other. Further, a plurality of rows of second sensing patterns 106-2 are formed on the base film 104, and second sensing patterns 106-2 in the same direction are formed to be spaced apart from each other.

Then, an insulating layer 108 is deposited on the under film 104 to cover the first and second sensing patterns 106-1 and 106-2, and a contact is formed on the second sensing pattern 106-2 in the insulating layer 108. Hole 110 ((c) of Fig. 2). Here, the insulating layer 108 may be made of an insulating material.

Thereafter, on the insulating layer 108, a bridge pattern 112 is formed to electrically connect the second sensing patterns 106-2 spaced apart from each other ((d) of Fig. 2). In particular, when the conductive material is filled in the contact holes 110 formed on the second sensing patterns 106-2 spaced apart from each other, the contact holes 110 are connected by the conductive material filled therein to form the bridge. The pattern 112, and thereby electrically connecting the second sensing patterns 106-2 spaced apart from each other.

Fig. 4 is a partial plan view showing a state in which the bridge pattern 112 is formed on the insulating layer 108. Referring to Fig. 4, the bridge pattern 112 is formed to connect the second sensing patterns 106-2 which are spaced apart from each other but are spaced apart from each other. In this example, electrical isolation between the first sensing pattern 106-1 and the second sensing pattern 106-2 can be maintained, and the first and second sensing patterns 106-1 and 106-2 are formed in the same on flat surface.

Meanwhile, when the bridge pattern 112 is formed on the insulating layer 108, a connection pattern 114 is simultaneously formed on the insulating layer 108 at a portion where the position detecting line 23 and the pad portion 25 are formed. The connection pattern 114 is electrically connected to the first and second sensing patterns 106-1 and 106-2 at a portion where the position detecting line 23 and the pad portion 25 are formed.

Next, a conductive layer 116 is deposited on the insulating layer 108, and is connected to the connection pattern 114 ((e) of FIG. 2). Here, the conductive layer 116 may be subsequently formed as the position detecting line 23 and the pad portion 25. According to the first embodiment of the present invention, in the method of manufacturing a touch panel, the transparent electrode laminate mother substrate 50 can be prepared through the above process.

Meanwhile, although the conductive layer 116 is formed on the connection pattern 114 in the first embodiment, it is not limited thereto, and the conductive layer 116 may be simultaneously formed on the insulating layer 108 to be in FIG. In the process of forming the bridge pattern 112 in (d), the first and second sensing patterns 106-1 and 106-2 are electrically connected without an individual connection pattern 114. That is, in the process of forming the bridge pattern 112 in (d) of FIG. 2, the position detecting line 23 corresponding to the conductive layer 116 and the pad portion 25 may have the bridge pattern 112 at the same time.

FIG. 5 is a cross-sectional view showing a method of manufacturing a touch screen mother substrate by bonding a polarizing film mother substrate to the transparent electrode layer mother substrate in the method of manufacturing the touch screen panel according to the first embodiment of the present invention. Cutaway view.

Referring to FIG. 5, a protective film 120 is deposited on the polarizer 118 to prepare a polarizing plate 122, and then a position corresponding to the pad portion 25 of the touch panel 20 in the polarizing plate 122 forms a first -1 The pad penetrates the portion 124 ((a) of Fig. 5). Here, the polarizing plate 122 has the same size as the touch screen panel mother substrate 10 depicted in FIG. 1 , but for convenience of description, the touch screen panel mother substrate 10 is illustrated as having a touch corresponding to The size of the screen panel 20.

Fig. 6 is a plan view showing a state in which a penetrating portion is formed in a mother substrate of a polarizing plate. Referring to Fig. 6, a polarizing plate mother substrate 122' has the same dimensions as the touch panel mother substrate 10. Each of the first -1 pad penetration portions 124 is formed in a position corresponding to one of the pad portions 25 of each of the touch screen panels 20 in the polarizing plate mother substrate 122'.

As described above, since the first -1 pad penetration portion 124 is first formed in the polarizing plate mother substrate 122', even if the polarizing plate mother substrate 122' is attached to the transparent electrode layer substrate mother substrate 50, its subsequent The process can be carried out smoothly. Therefore, the entire manufacturing process can be simplified and the throughput can be improved. That is, when the polarizing plate mother substrate 122' is attached to the transparent electrode layer substrate mother substrate 50, the conductive layer 116 is exposed to the outside, so that a flexible printed circuit board (FPCB) can be connected to the conductive layer 116, so that The subsequent process can be carried out smoothly. The reason will be described in detail with reference to Fig. 7.

Referring again to FIG. 5, a retardation film 126 is deposited on the transparent electrode layer mother substrate 50, and then a position corresponding to the pad portion 25 in the retardation film 126 is formed to form a first --2 pad penetration portion 128 (No. 5 (b)). Here, the retardation film 126 may include a photo alignment film and a 1/4 wavelength liquid crystal layer deposited on the photo alignment film. In this embodiment, the first --2 pad penetration portion 128 formed in the retardation film 126 is disposed at a position corresponding to the first -1 pad penetration portion 124 formed in the polarizing plate 122. The first --2 pad penetration portion 128 may be formed on the conductive layer 116 to expose a portion thereof to the outside.

Next, the polarizing plate 122 is bonded to the retardation film 126 ((c) of Fig. 5). Here, the first -1 pad penetration portion 124 formed in the polarizing plate 122 and the first - - 2 pad penetration portion 128 formed in the retardation film 126 form a first pad penetration portion 130. At this time, the conductive layer 116 is exposed to the outside through the first pad penetrating portion 130. When the retardation film 126 is not required to be formed, the first-1 pad penetration portion 124 formed in the polarizing plate 122 serves as the first pad penetration portion 130.

Further, the polarizing plate 122 and the retardation film 126 form a polarizing film 132. The polarizing film 132 has a function of preventing reflection of external light to improve visibility. In the fifth embodiment, although the polarizing film 132 includes the polarizing plate 122 and the retardation film 126, it is not limited thereto, and the polarizing film 132 may include only the polarizing plate 122 according to the type of the display panel.

Then, after the base member 102 is removed from the base film 104 ((d) of FIG. 5), an adhesive layer 133 and a release film 134 are successively deposited on the lower surface of the base film 104 (Fig. 5 ( e)). According to the first embodiment of the present invention, in the method of manufacturing a touch screen panel, the touch screen panel mother substrate 10 can be prepared by the above method.

FIG. 7 is a view illustrating a method of bonding a touch screen panel mother substrate to a display panel mother substrate and forming an individual touch screen unit in the method of manufacturing the touch screen panel according to the first embodiment of the present invention; .

Referring to FIG. 7, a second pad penetrating portion 136 is formed in one side of the touch screen panel mother substrate 10 by passing through the touch screen panel mother substrate 10 ((a) of FIG. 7) . In FIG. 7, for convenience of description, only one portion of the touch screen panel mother substrate 10 corresponding to one touch screen panel 20 is depicted.

Next, the touch panel mother substrate 10 is bonded to the display panel mother substrate 70 (Fig. 7(b)). In this example, after the release film 134 is removed from the base film 104, the touch screen panel mother substrate 10 is attached to the display panel mother substrate 70. The display panel mother substrate 70 includes a display pad portion 138 formed thereon to be exposed to the outside through the second pad penetration portion 136. That is, the second pad penetration portion 136 and the display pad portion 138 are formed at positions corresponding to each other.

Then, the touch screen panel mother substrate 10 and the display panel mother substrate 70 are cut into individual touch screen units 90 of the same size as the touch screen panel 20 ((c) of FIG. 7).

Thereafter, the first flexible printed circuit board (FPCB) and the second FPCB 142 are attached to each of the touch screen units 90 ((d) of FIG. 7). At this time, one end of the first FPCB 140 is electrically connected to the conductive layer 116 exposed through the first pad penetration portion 130, and the other end of the first FPCB 140 is connectable to the touch. IC chip of the screen panel (not depicted). One end of the second FPCB 142 may be electrically connected to the display pad portion 138 exposed to the outside through the second pad penetration portion 136, and the other end of the second FPCB 142 may be connected to drive the display Panel driver (not depicted). Here, after the protective film 120 is removed from the polarizer 118, the first and second FPCBs 140 and 142 may be located in the touch screen unit 90.

According to the first embodiment of the present invention, the first-1 pad penetration portion 124 may be first formed in the polarizing plate mother substrate 122', and the polarizing plate mother substrate 122' itself may be attached to the transparent electrode layer plate. The mother substrate 50 is used to prepare the touch screen panel 20. Therefore, the number of bonding processes can be significantly reduced throughout the manufacturing process of the touch screen panel, and the entire production process can be simplified. For example, when twelve touch screen panels are prepared by using a touch screen panel mother substrate, the transparent electrode layer having the product unit size and the polarizing plate are attached to each other in the related art, and thus the bonding procedure must be performed. Twelve times. However, according to the first embodiment of the present invention, only one bonding process is required to fit the transparent electrode layer substrate mother substrate 50 and the polarizing plate mother substrate 122', so that the number of bonding processes can be remarkably reduced and thus the entire production process. In addition, since the second pad penetration portion 136 is formed in the touch screen panel 20, and the touch screen panel 20 is attached to the display panel mother substrate 70, the subsequent process can be smoothly performed and the entire process is further simplified. Production process. (Second embodiment)

Next, a method of manufacturing a touch panel will be described with reference to FIGS. 8 and 9 in accordance with a second embodiment of the present invention. In the second embodiment, the same portions as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

Fig. 8 is a cross-sectional view showing a method of forming a mother substrate of a transparent electrode layer in a method of manufacturing a touch panel according to a second embodiment of the present invention.

Referring to Fig. 8, a base film 104 is deposited on the base member 102 ((a) of Fig. 8). The base member 102 can use a glass substrate, but is not limited thereto, and any conventional substrate known in the related art can be used. The base film 104 may be deposited on the base member 102 using a liquid resin (for example, polyacrylamide (PI) or the like), and the liquid resin is hardened.

Next, a bridge pattern 112 and a conductive layer 116 are formed on the under film 104 ((b) of Fig. 8). The bridge pattern 112 and the conductive layer 116 are formed apart from each other. The bridge pattern 112 may be formed at corresponding positions to electrically connect the second sensing patterns 106-2 spaced apart from each other as described below. The conductive layer 116 can be formed as the position detecting line 23 and the pad portion 25 in the subsequent manner.

Then, an insulating layer 108 is formed on the under film 104 to cover the bridge pattern 112 and the conductive layer 116, and a contact hole 110 is formed on the bridge pattern 112 at predetermined intervals in the insulating layer 108 (Fig. 8 (c )). At this point, a portion of the insulating layer 108 disposed on the conductive layer 116 can be removed to expose a portion thereof.

Then, the first sensing pattern 106-1 and the second sensing pattern 106-2 are formed on the insulating layer 108 at predetermined intervals ((d) of FIG. 8). At this time, when the conductive material is filled in the contact hole 110, the second sensing patterns 106-2 disposed in the same row and spaced apart from each other are electrically connected to each other through the contact hole 110 and the bridge pattern 112. Furthermore, a sensing pattern 106 electrically connected to each other is formed on an exposed portion of the conductive layer 116. The sensing pattern 106 includes the first and second sensing patterns 106-1 and 106-2. According to the second embodiment of the present invention, in the method of manufacturing a touch panel, a transparent electrode laminate mother substrate 50 can be prepared by the above method.

Meanwhile, although the bridge pattern 112 and the conductive layer 116 are simultaneously formed on the base film 104 in (b) of FIG. 8 in the second embodiment, it is not limited thereto, and in forming the eighth figure. In the process of the first and second sensing patterns 106-1 and 106-2 in (d), the conductive layer 116 may be formed simultaneously with the first and second sensing patterns 106-1 and 106-2. At this time, the first and second sensing patterns 106-1 and 106-2 may be formed of the same material (for example, a metal mesh).

FIG. 9 is a cross-sectional view showing a method of manufacturing a touch screen mother substrate by bonding a polarizing film mother substrate to the transparent electrode layer mother substrate in the method of manufacturing the touch screen panel according to the second embodiment of the present invention. Cutaway view.

Referring to FIG. 9, a protective film 120 is deposited on the polarizer 118 to prepare a polarizing plate 122, and then a position corresponding to the pad portion 25 in the polarizing plate 122 is formed to form a first-1 pad penetrating portion 124 (9th Figure (a)).

Next, a retardation film 126 is formed on the conductive layer 116 of the transparent electrode layer mother substrate 50, and a first -2 pad penetration portion 128 is formed in the retardation film 126 corresponding to the position of the pad portion 25. 9 (b)). That is, the retardation film 126 is deposited on the insulating layer 108 to cover the first and second sensing patterns 106-1 and 106-2, and then the retardation film 126 is removed from the conductive layer 116 to prepare the first- 2 pad penetration portion 128.

Thereafter, the polarizing plate 122 is attached to the retardation film 126 ((c) of Fig. 9). At this time, the first-1 pad penetration portion 124 formed in the polarizing plate 122 and the first-2 pad penetration portion 128 formed in the retardation film 126 form the first pad penetration portion 130. Here, the first-1 pad penetration portion 124 is inherently used as the first pad penetration portion 130 when the retardation film 126 is not required to be formed.

Next, after the base member 102 is removed from the base film 104 ((d) of FIG. 9), the adhesive layer 133 and the release film 134 are successively deposited on the lower surface of the base film 104 ((e) of Fig. 9) ). According to the second embodiment of the present invention, in the method of manufacturing the touch screen panel, the touch screen panel mother substrate 10 can be prepared by the above method.

According to a second embodiment of the present invention, in a method of manufacturing a touch screen panel, a method of bonding the touch screen panel mother substrate to the display panel mother substrate and forming the individual touch screen unit and FIG. 7 The same is true, and a detailed description thereof is omitted. (Third embodiment)

Next, a method of manufacturing a touch panel will be described with reference to FIGS. 10 and 11 in accordance with a third embodiment of the present invention. In the third embodiment, the same portions as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

Fig. 10 is a cross-sectional view showing a method of forming a mother substrate of a transparent electrode layer in a method of manufacturing a touch panel according to a third embodiment of the present invention.

Referring to Fig. 10, first, a base film 104 is prepared (Fig. 10 (a)). The material from which the base film 104 is made is, for example, polyethylene bismuth (PES), polycarbonate (PC) or the like. In this example, the base film 104 itself can serve as a substrate without a separate base member 102. Here, the base film 104 can be supplied to the manufacturing process by a winding process.

Next, a bridge pattern 122 and a conductive layer 116 are deposited on the under film 104 (Fig. 10(b)). The bridge pattern 122 and the conductive layer 116 are formed at a predetermined interval from each other. The bridge pattern 122 is formed at a corresponding position, and is electrically connected to the second sensing patterns 106-2 spaced apart from each other as described below. The conductive layer 116 can be formed as the position detecting line 23 and the pad portion 25 in the subsequent manner.

Then, an insulating layer 108 is formed on the under film 104 to cover the bridge pattern 122 and the conductive layer 116, and a contact hole 110 is formed in the bridge layer 122 in the insulating layer 108 ((c) of FIG. 10) . At this time, a portion of the insulating layer 108 may be removed from the conductive layer 116 to expose the conductive layer 116 to the outside.

Thereafter, a first sensing pattern 106-1 and a second sensing pattern 106-2 are formed on the insulating layer 108 ((d) of FIG. 10). When the conductive material is filled in the contact hole 110, the second sensing patterns 106-2 disposed in the same row and spaced apart from each other are electrically connected to each other through the contact holes 110 filled with the conductive material and the bridge pattern 112. Further, sensing patterns 106 are formed on the exposed portions of the conductive layer 116 to be electrically connected to each other. The sensing pattern 106 includes the first and second sensing patterns 106-1 and 106-2. According to the third embodiment of the present invention, in the method of manufacturing a touch panel, the transparent electrode laminate mother substrate 50 can be prepared by the above method.

Meanwhile, in the third embodiment, the bridge pattern 112 and the conductive layer 116 are simultaneously formed on the base film 104 in (b) of FIG. 10, but not limited thereto, and in FIG. 10 In the method of forming the first and second sensing patterns 106-1 and 106-2 in (d), the conductive layer 116 and the first and second sensing patterns 106-1 and 106-2 may be simultaneously formed. At this time, the first and second sensing patterns 106-1 and 106-2 may be made of a metal mesh.

11 is a cross-sectional view showing a method of manufacturing a touch screen panel mother substrate by bonding a polarizing film mother substrate to the transparent electrode layer mother substrate in a method of manufacturing a touch panel according to a third embodiment of the present invention. Cutaway view.

Referring to FIG. 11, a protective film 120 is deposited on the polarizer 118 to prepare a polarizing plate 122, and then a first-1 pad penetrating portion 124 is formed in the polarizing plate 122 at a position corresponding to the pad portion 25 (Fig. 11) (a)).

Next, a retardation film 126 is formed on the conductive layer 116 of the transparent electrode layer mother substrate 50, and a first -2 pad penetration portion 128 is formed in the retardation film 126 corresponding to a position of the pad portion 25. Figure 11 (b)).

Thereafter, the polarizing plate 122 is attached to the retardation film 126 ((c) of Fig. 11). At this time, the first-1 pad penetration portion 124 formed in the polarizing plate 122 and the first-2 pad penetration portion 128 formed in the retardation film 126 form the first pad penetration portion 130. Here, when it is not necessary to form the retardation film 126, the first-1 pad penetration portion 124 is certainly used as the first pad penetration portion 130.

Next, an adhesive layer 133 and a release film 134 are successively deposited on the lower surface of the under film 104 ((d) of Fig. 11). According to the second embodiment of the present invention, in the method of manufacturing the touch screen panel, the touch screen panel mother substrate 10 can be prepared by the above method.

According to a third embodiment of the present invention, in a method of manufacturing a touch panel, the method of bonding the touch screen mother substrate to the display panel mother substrate and forming the individual touch screen unit is in FIG. The same is true, and a detailed description thereof is omitted.

Meanwhile, according to the first to third embodiments of the present invention, in the method of manufacturing a touch panel, the polarizing plate mother substrate is bonded to the transparent electrode layer mother substrate to prepare the touch screen panel mother substrate. During the process, the retardation film 126 is deposited on the mother substrate 50 of the transparent electrode layer, and then the polarizer 122 is attached to the retardation film 126, so that the polarizer 122 and the retardation film 126 form the polarizing film 132. However, it is not limited thereto, and the polarizing film 122 and the retardation film 126 may be respectively attached to the polarizing film 132 to prepare the polarizing film 132.

Fig. 12 is a cross-sectional view showing another embodiment of forming a polarizing film in a method of manufacturing a touch panel according to the present invention. Referring to Fig. 12, a protective film 120 may be deposited on the polarizer 118 to prepare a polarizing plate 122, and then a retardation film 126 may be deposited on the lower surface of the polarizing plate 122 to prepare a polarizing film 132. In this example, the first pad penetration portion 130 may be formed at a position corresponding to the pad portion 25 in the polarizing film 132. Here, the polarizing film 132 is bonded to the transparent electrode layer substrate mother substrate 50. According to the pattern of the display panel, when the retardation film 126 is not required to be included, the polarizing film 132 includes only the polarizing plate 122 that is subsequently attached to the mother substrate 50 of the transparent electrode laminate.

Furthermore, according to the first to third embodiments of the present invention, in the method of manufacturing the touch screen panel, the second pad penetration portion 136 is formed in the touch screen panel mother substrate 10 as a bonding to the The polarizing film 132 of the transparent electrode layer mother substrate 50 is not limited thereto. For example, before the polarizing film 132 is attached to the transparent electrode layer board mother substrate 50, a second -1 pad penetration portion may be formed in the transparent electrode layer board mother substrate 50 corresponding to the position of the display pad portion 138. And a second - 2 pad penetration portion may be formed at a position corresponding to the display pad portion 138 in the polarizing film 132.

While the present invention has been described in its preferred embodiments, the present invention is not limited to the embodiments described above, and those skilled in the art can understand various modifications and variations without departing from the scope of the invention as defined by the appended claims.

10. . . Touch screen panel mother substrate

20. . . Touch screen panel

twenty one. . . Touch screen

twenty three. . . Position detection line

25. . . Pad part

50. . . Transparent electrode layer mother substrate

70. . . Display panel mother substrate

90. . . Touch screen unit

102. . . Bottom piece

104. . . Base film

106. . . Induction pattern

106-1. . . First sensing pattern

106-2. . . Second sensing pattern

108. . . Insulation

110. . . Contact hole

112. . . Bridge pattern

114. . . Connection pattern

116. . . Conductive layer

118. . . Polarizer

120. . . Protective film

122. . . Polarizer

122’. . . Polarizing plate mother substrate

124. . . First-1 pad penetration

126. . . Delayed film

128. . . First-2 pad penetration

130. . . First pad penetration

132. . . Polarizing film

133. . . Adhesive layer

134. . . Release film

136. . . Second pad penetration

138. . . Display pad section

140. . . First FPCB

142. . . Second FPCB

The above and other objects, features and advantages of the present invention will be apparent from the description and accompanying drawings. 1 is a plan view showing a mother substrate of a touch screen panel including a plurality of touch screen panels; and FIG. 2 is a view showing a method of forming a transparent electrode in a method of manufacturing the touch panel according to the first embodiment of the present invention; FIG. 3 is a cross-sectional view showing a method of forming a first and second sensing patterns on a base film in a method of manufacturing a touch screen panel according to a first embodiment of the present invention; Partial plan view; FIG. 4 is a partial plan view showing a bridge pattern formed on an insulating layer in a method of manufacturing a touch panel according to a first embodiment of the present invention; FIG. 5 is a view showing a first embodiment according to the present invention; In a method of manufacturing a touch screen panel, a cross-sectional view of a method of bonding a mother substrate of a polarizing film to the mother substrate of the transparent electrode layer to fabricate a mother substrate of the touch panel; FIG. 6 is a view of the invention according to the present invention. One embodiment explains a plan view showing a state in which a penetrating portion is formed in a mother substrate of a polarizing plate in a method of manufacturing a touch panel; and FIG. 7 is a view showing a first embodiment according to the present invention. In the manufacturing method of the touch screen panel, a method of bonding the touch screen panel mother substrate to the display panel mother substrate and a method of forming the individual touch screen unit; FIG. 8 is a second embodiment according to the present invention. A cross-sectional view of a method of forming a mother substrate of a transparent electrode layer in a method of manufacturing a touch panel; and a ninth embodiment illustrating a method of manufacturing a method of manufacturing a touch panel according to a second embodiment of the present invention A cross-sectional view of a method in which a mother substrate is bonded to the mother substrate of the transparent electrode layer to form a mother substrate of the touch panel; FIG. 10 is a view showing a method of manufacturing the touch panel according to a third embodiment of the present invention; FIG. 11 is a cross-sectional view showing a method of forming a transparent electrode layer mother substrate; and FIG. 11 is a view showing a method of manufacturing a touch screen panel according to a third embodiment of the present invention, in which a polarizing film mother substrate is bonded to the transparent electrode layer a cross-sectional view of a method of manufacturing a mother panel of a touch screen panel; and FIG. 12 is a view showing a method of forming a polarized light in a method of manufacturing a touch panel according to the present invention Cross sectional view of another embodiment.

Claims (14)

A method for manufacturing a touch screen panel, comprising: (A) preparing a transparent electrode layer mother substrate, wherein the transparent electrode layer mother substrate comprises a conductive layer as a pad portion of each touch screen panel; B) preparing a polarizing film mother substrate, and forming a first pad penetrating portion at each position of the pad portion corresponding to each touch screen panel in the polarizing film mother substrate; and (C) polarizing the light The mother substrate is attached to the mother substrate of the transparent electrode layer to form a touch screen mother substrate, wherein the conductive layer of each touch screen panel included in the touch screen mother substrate is The first pad penetrates the portion and is exposed to an outside. The method of claim 1, wherein the step (B) comprises: depositing a protective film on a polarizer to prepare a polarizing plate; and the pad corresponding to the touch screen panel in the polarizing plate a portion of the portion forming a first -1 pad penetration portion; and depositing a retardation film on the transparent electrode layer substrate mother substrate, and one of the pad portions corresponding to the touch screen panel in the retardation film The position forms a first --2 pad penetration portion. The method of claim 1, wherein the step (B) comprises: depositing a protective film on a polarizer to prepare a polarizing plate; depositing a retardation film on a surface of the polarizing plate; The polarizing plate and a position of the retardation film corresponding to one of the pad portions of the touch screen panel form a first pad penetrating portion. The method of claim 1, wherein the step (B) comprises: Depositing a protective film on a polarizer to prepare a polarizing plate; and forming a first pad penetrating portion in the polarizing plate corresponding to a position of the pad portion of the touch screen panel. The method of claim 1, further comprising: (D) attaching the touch screen panel mother substrate to a display panel mother substrate after the step (C). The method of claim 5, wherein the step (D) comprises: forming a second pad in each position of a display pad portion corresponding to each of the display panels in the touch screen panel mother substrate a penetrating portion; and attaching the touch screen panel mother substrate to the display panel mother substrate. For example, in the method of claim 6, the method further comprises: after the step (D), (E) cutting the touch screen panel mother substrate and the display panel mother substrate into individual touch screen units. The method of claim 7, further comprising: after the step (E), (F) connecting a first flexible printed circuit board (FPCB) to be exposed through the first pad penetration portion And an external portion of the pad, and a second FPCB connected to the display pad portion exposed to the outside through the second pad penetration portion. The method of claim 1, wherein the step (A) comprises: applying a liquid resin on a substrate and hardening it to prepare a base film; forming a plurality of first layers on the base film a sensing pattern and a plurality of second sensing patterns; depositing an insulating layer on the base film to cover the plurality of first sensing patterns and the plurality of second sensing patterns, and the plurality of the sensing patterns in the insulating layer Forming a plurality of contact holes on the second sensing pattern; filling a plurality of contact holes with a conductive material to form a plurality of bridges on the insulating layer a pattern that electrically connects the plurality of second sensing patterns spaced apart from each other. The method of claim 9, wherein the step of forming the bridge pattern comprises: filling a plurality of contact holes with a conductive material to form a conductive layer on the insulating layer, and The plurality of first sensing patterns are electrically connected to the plurality of second sensing patterns. The method of claim 1, wherein the step (A) comprises: applying a liquid resin on a substrate and hardening it to prepare a base film; forming a plurality of bridge patterns on the base film Depositing an insulating layer on the under film to cover the plurality of bridge patterns, and forming a plurality of contact holes in the insulating layer at a predetermined interval on the plurality of bridge patterns; and forming a plurality of holes on the insulating layer a first sensing pattern, and filling a plurality of contact holes with a conductive material to form a plurality of second sensing patterns spaced apart from each other, and thus each of the contact holes filled through the conductive material and the plurality of bridge patterns are electrically connected to each other connection. The method of claim 1, wherein the step (A) comprises: preparing a base film; forming a plurality of bridge patterns on the base film; and depositing an insulating layer on the base film to cover the plurality of a bridge pattern, and forming a plurality of contact holes at the predetermined intervals on the plurality of bridge patterns in the insulating layer; and forming a plurality of first sensing patterns on the insulating layer, and filling one of the plurality of contact holes The conductive material forms a plurality of second sensing patterns spaced apart from each other, and thus each of the contact holes filled through the conductive material and the plurality of bridge patterns are electrically connected to each other. The method of claim 11, wherein the step of forming the plurality of bridge patterns comprises forming a conductive layer on the base film spaced apart from the plurality of bridge patterns. The method of claim 1, wherein the step (A) comprises: forming a second - 1 pad penetration in each position of the transparent electrode layer plate mother substrate corresponding to each of the display pad portions And a step (B) comprising: forming a second - 2 pad penetration portion in each of the position of the display pad portion in the polarizing film mother substrate.