TWI650689B - Touch panel and fabricating method thereof - Google Patents

Abstract

A touch panel includes a substrate, a first retaining wall pattern, a plurality of first wires, and a plurality of first touch electrodes. The substrate has a touch area and a peripheral line area outside the touch area. The first retaining wall pattern is located on the substrate and has a plurality of first openings in the peripheral line region. A plurality of first wires are respectively located in the first openings, wherein the first barrier pattern is a hydrophobic material and the first wires are hydrophilic materials. The plurality of first touch electrodes are located in the touch area of the substrate and are electrically connected to the first wires respectively. In addition, a method of manufacturing a touch panel has also been proposed.

Description

Touch panel and manufacturing method thereof

The present invention relates to a panel and a method of fabricating the same, and more particularly to a touch panel and a method of fabricating the same.

Touch panels have been widely used in many electronic products, such as smart phones or tablets, which make the interactive mode of human-machine interface more intuitive, and more than ever through other input devices such as keyboard or mouse. The experience of good experience has become the basic equipment of current electronic products.

At present, the mainstream touch technology is a capacitive touch technology, which senses the position of the user touching the surface of the screen through the sensing electrode pattern on the substrate. In general, a capacitive touch panel includes a plurality of touch electrodes and a plurality of wires electrically connected to the plurality of touch electrodes. A plurality of wires are disposed in a peripheral line region of the capacitive touch panel. The line width of each wire and the space between the wires determine the width of the peripheral line area. Today's high-end electronic products require a narrow bezel. The width of the border corresponds to the width of the peripheral line area. However, with the current process In terms of capability, in order to ensure that adjacent wires are not short-circuited, the spacing between the wires needs to be designed to be large, so that it is not easy to reduce the width of the peripheral line region, that is, it is difficult to achieve a narrow frame.

The invention provides a method for manufacturing a touch panel, which is easy to realize a touch panel with a narrow frame.

The invention provides a touch panel with a narrow bezel.

The present invention provides a method for fabricating a touch panel, comprising the steps of: providing a substrate having a touch area and a peripheral line area outside the touch area; forming a first retaining wall pattern on the substrate, wherein the first retaining wall pattern has a plurality of first openings located in the peripheral line region; distributing the first ink in the first opening to form a plurality of first wires respectively located in the first openings, wherein the first barrier pattern is a hydrophobic material and the first The ink is a hydrophilic material; a plurality of first touch electrodes are formed on the touch area of the substrate, wherein the first touch electrodes are electrically connected to the first wires, respectively.

In an embodiment of the invention, the first barrier pattern further has a plurality of second openings in the touch area, and the step of forming a plurality of first touch electrodes on the touch area of the substrate comprises: An ink is distributed in the second opening to form first touch electrodes respectively located in the second openings.

In an embodiment of the invention, before the first ink is distributed to the second opening, the second ink is distributed in the second opening to form a plurality of first anti-reflection patterns, wherein the second ink is hydrophilic Material, and the reflectivity of the second ink is low In the first ink.

In an embodiment of the invention, the plurality of first anti-reflection patterns are electrically connected to the plurality of first touch electrodes.

In an embodiment of the invention, before the first ink is distributed to the first opening, the second ink is distributed in the first opening to form a plurality of second anti-reflection patterns, wherein the second ink is hydrophilic a material, and the second ink has a lower reflectance than the first ink.

In an embodiment of the invention, the plurality of second anti-reflection patterns are electrically connected to the plurality of first wires.

In an embodiment of the invention, after forming the first wire described above, a first insulating layer is formed to cover the first wire and the first barrier pattern.

In an embodiment of the present invention, after forming the first insulating layer, forming a second retaining wall pattern on the first insulating layer, wherein the second retaining wall pattern has a plurality of third openings in the peripheral line region; Distributing a third ink in the third opening to form a plurality of second wires respectively located in the third opening, wherein the second barrier pattern is a hydrophobic material, and the third ink is a hydrophilic material; A plurality of second touch electrodes are formed on the control region, wherein the second touch electrodes are electrically connected to the second wires, and the extending direction of the second touch electrodes is staggered with the extending direction of the first touch electrodes.

In an embodiment of the invention, the second retaining wall pattern further has a plurality of fourth openings in the touch area, and the step of forming the second touch electrodes on the touch area of the substrate comprises: The ink is distributed in the fourth opening to form second touch electrodes respectively located in the fourth openings.

In an embodiment of the invention, before the third ink is distributed to the fourth opening, the fourth ink is distributed in the fourth opening to form a plurality of third anti-reflection patterns, wherein the fourth ink is hydrophilic a material, and the fourth ink has a lower reflectance than the third ink.

In an embodiment of the invention, the third anti-reflection pattern is electrically connected to the second touch electrode.

In an embodiment of the invention, before the third ink is distributed to the third opening, the fourth ink is distributed in the third opening to form a plurality of fourth anti-reflection patterns, wherein the fourth ink is hydrophilic a material, and the fourth ink has a lower reflectance than the third ink.

In an embodiment of the invention, the plurality of fourth anti-reflective patterns are electrically connected to the plurality of second wires.

In an embodiment of the invention, after forming the second wire described above, a second insulating layer is formed to cover the second wire and the second barrier pattern.

In an embodiment of the invention, the shielding portion is formed on the peripheral line region before the first retaining wall pattern is formed on the substrate.

The present invention provides a touch panel including a substrate, a first retaining wall pattern, a plurality of first wires, and a plurality of first touch electrodes. The substrate has a touch area and a peripheral line area outside the touch area. The first retaining wall pattern is located on the substrate. The first retaining wall pattern has a plurality of first openings in the peripheral line region. A plurality of first wires are respectively located in the first openings, wherein the first barrier pattern is a hydrophobic material and the first wires are hydrophilic materials. The plurality of first touch electrodes are located in the touch area of the substrate and are respectively associated with the plurality of first guides Wire electrical connection.

In an embodiment of the invention, the first barrier pattern further has a plurality of second openings in the touch area, and the plurality of first touch electrodes are respectively located in the plurality of second openings.

In an embodiment of the invention, the touch panel further includes a plurality of first anti-reflection patterns respectively located in the second opening and between the first touch electrode and the substrate, wherein the first anti-reflection pattern is hydrophilic The material, and the first anti-reflection pattern has a lower reflectivity than the first touch electrode.

In an embodiment of the invention, the first anti-reflection patterns are electrically connected to the first touch electrodes.

In an embodiment of the invention, the touch panel further includes a plurality of second anti-reflection patterns. The plurality of second anti-reflection patterns are located in the first opening and between the first wire and the substrate, wherein the second anti-reflection pattern is a hydrophilic material, and the second anti-reflection pattern has a lower reflectivity than the first wire.

In an embodiment of the invention, the plurality of second anti-reflection patterns are electrically connected to the plurality of first wires.

In an embodiment of the invention, the touch panel further includes a first insulating layer. The first insulating layer covers the first wire and the first retaining wall pattern.

In an embodiment of the invention, the touch panel further includes a second retaining wall pattern on the first insulating layer. The second retaining wall pattern has a plurality of third openings in the peripheral line region. A plurality of second wires are respectively located in the third opening, wherein the second barrier pattern is a hydrophobic material and the second conductor is a hydrophilic material. Multiple second touches The electrodes are located in the touch area of the substrate and are electrically connected to the plurality of second wires respectively. The extending direction of the second touch electrode is staggered with the extending direction of the first touch electrode.

In an embodiment of the invention, the second barrier pattern further has a plurality of fourth openings in the touch area, and the plurality of second touch electrodes are respectively located in the plurality of fourth openings.

In an embodiment of the invention, the touch panel further includes a plurality of third anti-reflection patterns. The plurality of third anti-reflection patterns are respectively located in the fourth opening and between the second touch electrode and the first insulating layer, wherein the third anti-reflective pattern is a hydrophilic material, and the third anti-reflective pattern has a lower reflectivity than the first Two touch electrodes.

In an embodiment of the invention, the plurality of third anti-reflection patterns are electrically connected to the plurality of second touch electrodes.

In an embodiment of the invention, the touch panel further includes a plurality of fourth anti-reflection patterns, located in the third opening and between the second wire and the substrate, wherein the fourth anti-reflection pattern is a hydrophilic material, and The fourth anti-reflection pattern has a lower reflectance than the second wire.

In an embodiment of the invention, the fourth anti-reflection pattern is electrically connected to the second wire.

In an embodiment of the invention, the touch panel further includes a second insulating layer. The second insulating layer covers the second wire and the second retaining wall pattern.

In an embodiment of the invention, the touch panel further includes a shielding portion. The shielding portion is located between the peripheral wiring region and the first wire and the substrate.

Based on the above, the touch panel and the method of fabricating the same according to the present invention An ink is distributed in the plurality of first openings of the first barrier pattern to form a plurality of first wires respectively located in the plurality of first openings. Since the first retaining wall pattern is a hydrophobic material and the first ink is a hydrophilic material, when the first ink is distributed in a certain first opening of the first retaining wall pattern, the first ink is easily concentrated in a specified one. The first opening does not easily overflow to the adjacent first opening, thereby causing a problem that a plurality of adjacent first wires are short-circuited. Thereby, at the beginning of the design, the gap between the adjacent plurality of first openings (which is substantially equal to the gap between the adjacent plurality of first conductive lines formed later) can be designed to be smaller, thereby achieving the periphery thereof. A touch panel with a narrow width (ie, a narrow bezel) in the line area.

The above described features and advantages of the invention will be apparent from the following description.

100‧‧‧ touch panel

110‧‧‧Substrate

110a‧‧‧ upper surface

112‧‧‧ touch area

114‧‧‧ Peripheral area

120‧‧‧First retaining wall pattern

122‧‧‧second opening

124‧‧‧ first opening

130A‧‧‧First anti-reflection pattern

130B‧‧‧second anti-reflection pattern

140A‧‧‧first touch electrode

140B‧‧‧First wire

150‧‧‧First insulation

150a‧‧‧ upper surface

160‧‧‧Second retaining wall pattern

162‧‧‧fourth opening

164‧‧‧ third opening

170A‧‧‧ third anti-reflection pattern

170B‧‧‧fourth anti-reflection pattern

180A‧‧‧second touch electrode

180B‧‧‧second wire

190‧‧‧Second insulation

3A, 3B‧‧‧ virtual box

BM‧‧·shading department

BM-1‧‧‧ upper surface

D1, d2‧‧‧ gap

G1‧‧‧ first groove

G2‧‧‧second groove

G3‧‧‧ third groove

G4‧‧‧fourth groove

K1‧‧‧ first ink

K2‧‧‧second ink

K3‧‧‧ third ink

K4‧‧‧fourth ink

W1, W2‧‧‧ width

x, y‧‧‧ direction

1A-1H are schematic cross-sectional views showing a method of fabricating a touch panel according to an embodiment of the invention.

2 is a top plan view of a touch panel according to an embodiment of the invention.

3A is a cross-sectional view showing a contact surface of a second ink with a shielding portion and a first retaining wall pattern according to an embodiment of the present invention.

3B is a cross-sectional view showing a first ink and a second anti-reflection pattern and a first barrier pattern according to an embodiment of the invention.

1A-1H are schematic cross-sectional views showing a method of fabricating a touch panel according to an embodiment of the invention. 2 is a top plan view of a touch panel according to an embodiment of the invention. 1A to 1H correspond to the line A-A' of Fig. 2.

Referring to FIG. 1A and FIG. 2, in the present embodiment, first, a substrate 110 is provided. The substrate 110 has a touch area 112 and a peripheral line area 114 outside the touch area 112. For example, in the embodiment, the substrate 110 may be a glass substrate. However, the present invention is not limited thereto. According to other embodiments, the substrate 110 may also be a sapphire substrate or a substrate of other suitable materials. Next, in the present embodiment, the shielding portion BM can be selectively formed on the peripheral wiring region 114 of the substrate 110. A partial region of the substrate 110 covered by the shielding portion BM is the peripheral wiring region 114, and a partial region of the substrate 110 not covered by the shielding portion BM is the touch region 112. In the present embodiment, the shielding portion BM is, for example, a black ink layer. However, the invention is not limited thereto, and according to other embodiments, the shielding portion BM may be other suitable materials, and/or in other suitable colors.

Next, a first barrier pattern 120 is formed on the substrate 110. In particular, the first retaining wall pattern 120 is a hydrophobic material. For example, in the embodiment, the first retaining wall pattern 120 may be a hydrophobic photoresist, but the invention is not limited thereto. The first retaining wall pattern 120 has a plurality of first openings 124 in the peripheral line region 114. In the embodiment, the first opening 124 of the first retaining wall pattern 120 and the upper surface BM-1 of the shielding portion BM can enclose the first groove G1. The first groove G1 is, for example but not limited to, a strip groove. In the subsequent process, the first groove G1 is for accommodating the first ink K1, thereby forming a first wire 140B (shown in FIG. 2) located in the peripheral line region 114. First gear The wall pattern 120 also has a plurality of second openings 122 located in the touch area 112. In this embodiment, the second opening 122 of the first retaining wall pattern 120 and the upper surface 110a of the substrate 110 may enclose the second recess G2. The second groove G2 is, for example but not limited to, a mesh groove. In the subsequent process, the second recess G2 is configured to receive the first ink K1, thereby forming a first touch electrode 140A (shown in FIG. 2) located in the touch area 112.

Referring to FIG. 1B and FIG. 2, in this embodiment, the second ink K2 may be selectively distributed in the first opening 124 of the first retaining wall pattern 120 (ie, distributed in the first recess G1). To form the second anti-reflection pattern 130B. Also, the second ink K2 may be selectively distributed in the second opening 122 (ie, distributed in the second groove G2) to form a plurality of first anti-reflection patterns 130A. For example, in this embodiment, the second ink K2 can be printed on the first groove G1 and the second groove G2 by a printing technique to be in the first groove G1 and the second groove G2. The second anti-reflection pattern 130B and the first anti-reflection pattern 130A are formed, respectively. In the present embodiment, the second ink K2 is, for example, a dark ink such as, but not limited to, a black ink. After the second ink K2 is cured, it can absorb light, thereby forming the first anti-reflection pattern 130A and the second anti-reflection pattern 130B having anti-reflection functions. In addition, in the embodiment, the second ink K2 may selectively have conductivity, and may be composed of, for example, highly conductive composite particles, highly conductive carbon black particles, hydrophilic polymer resin, dispersant, and organic solvent. However, the invention is not limited thereto. It should be noted that the present invention does not necessarily form the first anti-reflection pattern 130A and/or the second anti-reflection pattern 130B; according to other embodiments, the formation of the first anti-reflection pattern 130A and/or the second anti-reflection may also be omitted. The step of pattern 130B; in other words, according to other embodiments, the final touch is formed The panel may also optionally not include the first anti-reflective pattern 130A and/or the second anti-reflective pattern 130B.

It is to be noted that the second ink K2 is a hydrophilic material, and the first retaining wall pattern 120 is a hydrophobic material. Thereby, even if the distance d1 of the adjacent first groove G1 is small, the second ink K2 can be accurately distributed in each of the first grooves G1, and it is not easy to overflow the first groove G1, thereby causing the second adjacent one. The problem that the anti-reflection pattern 130B is short-circuited. This is explained below in conjunction with Figure 3A.

3A is a cross-sectional view showing a contact surface of a second ink K2 with a shielding portion BM and a first barrier pattern 120 according to an embodiment of the present invention. FIG. 3A corresponds to the dashed box 3A in FIG. 1B. In this embodiment, when the second ink K2 is printed on the first groove G1, since the second ink K2 has hydrophilicity and the first retaining wall pattern 120 has hydrophobicity, the first groove G1 is distributed in the first groove G1. The two inks K2 will automatically gather into the shape of a drop of water, which is not easy to adhere or disperse outside the first groove G1. Therefore, the second ink K2 can be accurately distributed on the first retaining wall pattern compared with the problem of the ink overflow existing in the conventional printing technique. In each of the first grooves G1 of 120, a plurality of second anti-reflection patterns 130B having a small pitch d1 are formed.

Referring to FIG. 1C and FIG. 2, in the embodiment, the first ink K1 is distributed in the first opening 124 of the first retaining wall pattern 120 (ie, distributed in the first groove G1) to form a first A wire 140B. Moreover, the first ink K1 is also distributed in the second opening 122 (ie, distributed in the second groove G2) to form the first touch electrode 140A. For example, in this embodiment, the first ink K1 can be printed on the first groove G1 and the second groove G2 through the printing technique, so as to be in the first groove G1. The first wire 140B and the first touch electrode 140A are respectively formed in the second groove G2. In this embodiment, the first ink K1 is, for example but not limited to, a hydrophilic silver conductive ink material having conductivity, wherein the silver conductive ink forms a silver metal wire by redox, using a silver salt solution and a reducing solution at room temperature. Spraying the droplets in the first groove G1 and the second groove G2, the reducing solution reduces the silver salt solution to silver metal, forming the first touch electrode 140A and the first wire 140B having the conductive function, wherein the plurality of first The touch electrodes 140A are electrically connected to the plurality of first wires 140B, respectively. As shown in FIG. 2, the plurality of first touch electrodes 140A are substantially parallel to each other and extend along the direction x.

In addition, in the embodiment, the first touch electrode 140A and the first conductive line 140B are selectively electrically connected to the first anti-reflective pattern 130A and the second anti-reflective pattern 130B, respectively. However, the present invention is not limited thereto. According to other embodiments, the first anti-reflective pattern 130A and the second anti-reflective pattern 130B may also be made of a non-conductive material, and the first touch electrode 140A and the first conductive line 140B. The first anti-reflection pattern 130A and the second anti-reflection pattern 130B may not be electrically connected to each other. The first anti-reflection pattern 130A and the second anti-reflection pattern 130B are used to prevent the light from directly illuminating the first touch electrode 140A and the first conductive line 140B, thereby generating unnecessary reflected light and affecting the visual effect of the touch panel. In addition, in this embodiment, the first touch electrode 140A may have a light transmissive mesh design. However, the present invention is not limited thereto. According to other embodiments, the first touch electrode 140A may also be an unperforated conductive pattern. It should be noted that the first ink K1 is a hydrophilic material, and therefore has the characteristics that the second ink K2 can be accurately distributed in each of the first grooves G1, which will be described below with reference to FIG. 3B.

3B is a first ink K1 and a second anti-reflection diagram according to an embodiment of the invention. A schematic cross-sectional view of the contact surface of the case 130B and the first retaining wall pattern 120. FIG. 3B corresponds to the dashed box 3B in FIG. 1C. In the embodiment, when the first ink K1 is printed on the first groove G1, since the first ink K1 has hydrophilicity and the first retaining wall pattern 120 has hydrophobicity, the first groove G1 is distributed in the first groove G1. An ink K1 is automatically aggregated into a drop shape, and is not easily attached or dispersed outside the first groove G1. Therefore, the first ink K1 can be accurately distributed to the first retaining wall pattern compared to the ink overflow problem existing in the conventional printing technique. In each of the first grooves G1 of 120, a plurality of first wires 140B having a small distance d1 from each other are formed. Thereby, the touch panel 100 (shown in FIG. 2) having a small width W1 (shown in FIG. 2) of the peripheral line region 114 (ie, a narrow bezel) can be realized.

Referring to FIG. 1D, in the embodiment, a first insulating layer 150 is formed on the first barrier pattern 120 to cover the first touch electrode 140A and the first conductive line 140B. Specifically, the first insulating layer 150 is configured to protect the first touch electrode 140A and the first conductive line 140B, and electrically isolate the first touch electrode 140A and the first conductive line 140B from the first insulation formed thereon. The components on the layer 150 are, for example, a second touch electrode 180A and a second wire 180B (shown in FIG. 2).

Referring to FIG. 1E and FIG. 2, in the embodiment, the second barrier pattern 160 may be selectively formed on the first insulating layer 150. In particular, the second retaining wall pattern 160 is a hydrophobic material. For example, in the embodiment, the second retaining wall pattern 160 may be a hydrophobic photoresist, but the invention is not limited thereto. The second retaining wall pattern 160 has a plurality of third openings 164 located in the peripheral line region 114. In the embodiment, the third opening 164 of the second retaining wall pattern 160 and the upper surface 150a of the first insulating layer 150 may surround the third recess G3. The third groove G3 is, for example but not limited to, a strip concave groove. In the subsequent process, the third groove G3 is for accommodating the third ink K3, thereby forming the second wire 180B (shown in FIG. 2) located in the peripheral line region 114. The second retaining wall pattern 160 also has a plurality of fourth openings 162 located in the touch area 112. In the embodiment, the fourth opening 162 of the second retaining wall pattern 160 and the upper surface 150a of the first insulating layer 150 may surround the fourth recess G4. The fourth groove G4 is, for example but not limited to, a mesh groove. In the subsequent process, the fourth recess G4 is for accommodating the third ink K3, thereby forming the second touch electrode 180A (shown in FIG. 2) located in the touch area 112.

Referring to FIG. 1F and FIG. 2, in the embodiment, the fourth ink K4 may be selectively distributed in the third opening 164 of the second retaining wall pattern 160 (ie, distributed in the third recess G3). a fourth anti-reflection pattern 170B is formed, and the fourth ink K4 may be selectively distributed in the fourth opening 162 (ie, distributed in the fourth groove G4) to form a plurality of third anti-reflection patterns. 170A. For example, in the embodiment, the fourth ink K4 can be printed on the third groove G3 and the fourth groove G4 by the printing technique to be in the third groove G3 and the fourth groove G4. A fourth anti-reflection pattern 170B and a third anti-reflection pattern 170A are formed, respectively. In the present embodiment, the fourth ink K4 is, for example, a dark ink such as, but not limited to, a black ink. After the fourth ink K4 is cured, it can absorb light, thereby forming a third anti-reflection pattern 170A and a fourth anti-reflection pattern 170B having anti-reflection functions. In addition, in the embodiment, the fourth ink K4 may selectively have conductivity, and may be composed of, for example, highly conductive composite particles, highly conductive carbon black particles, hydrophilic polymer resin, dispersant, and organic solvent. However, the invention is not limited thereto. It should be noted that the present invention does not limit the formation of the third anti-reflection pattern 170A and/or the fourth anti-reflection pattern 170B; According to other embodiments, the step of forming the third anti-reflection pattern 170A and/or the fourth anti-reflection pattern 170B may also be omitted; in other words, according to other embodiments, the finally formed touch panel may also optionally not include the third. Anti-reflection pattern 170A and/or fourth anti-reflection pattern 170B.

It is to be noted that the fourth ink K4 is a hydrophilic material, and the second retaining wall pattern 160 is a hydrophobic material. Thereby, even if the spacing d2 of the adjacent third groove G3 is small, the fourth ink K4 can be accurately distributed in each of the third grooves G3, and it is not easy to overflow the third groove G3, thereby causing the fourth adjacent The problem that the anti-reflection pattern 170B is short-circuited.

Referring to FIG. 1G and FIG. 2, in the embodiment, the third ink K3 is distributed in the third opening 164 of the second retaining wall pattern 160 (ie, distributed in the third groove G3) to form the first Two wires 180B. Moreover, the third ink K3 is also distributed in the fourth opening 162 (ie, distributed in the fourth groove G4) to form the second touch electrode 180A. Specifically, in the embodiment, the third ink K3 can be printed on the third groove G3 and the fourth groove G4 by the printing technique, so as to be in the third groove G3 and the fourth groove G4. The second wire 180B and the second touch electrode 180A are formed respectively. In this embodiment, the third ink K3 is, for example but not limited to, a hydrophilic silver conductive ink material having conductivity, wherein the silver conductive ink forms a silver metal wire by a redox method, using a silver salt solution and a reducing solution at room temperature. Spraying the droplets in the third groove G3 and the fourth groove G4, the reducing solution reduces the silver salt solution to silver metal, forming a second touch electrode 180A and a second wire 180B having a conductive function, wherein the plurality of second The touch electrodes 180A are electrically connected to the plurality of second wires 180B, respectively. As shown in FIG. 2, multiple second touches The electrodes 180A are substantially parallel to each other and extend in a direction y that is staggered with the direction x.

In addition, in the embodiment, the second touch electrode 180A and the second conductive line 180B are selectively electrically connected to the third anti-reflective pattern 170A and the fourth anti-reflective pattern 170B, respectively. However, the present invention is not limited thereto. According to other embodiments, the third anti-reflective pattern 170A and the fourth anti-reflective pattern 170B may also be made of a non-conductive material, and the second touch electrode 180A and the second conductive line 180B. The third anti-reflection pattern 170A and the fourth anti-reflection pattern 170B may not be electrically connected to each other. The third anti-reflection pattern 170A and the fourth anti-reflection pattern 170B are used to prevent the light from directly illuminating the second touch electrode 180A and the second conductive line 180B, thereby generating unnecessary reflected light and affecting the visual effect of the touch panel. In addition, in this embodiment, the second touch electrode 180A may have a light transmissive mesh design. However, the present invention is not limited thereto. According to other embodiments, the second touch electrode 180A may also be an unperforated conductive pattern. It is to be noted that the third ink K3 is a hydrophilic material, and therefore has the characteristics that the fourth ink K4 can be accurately distributed in each of the third grooves G3.

Referring to FIG. 1H, in the embodiment, a second insulating layer 190 is formed on the second barrier pattern 160 to cover the second touch electrode 180A and the second conductive line 180B. Specifically, the second insulating layer 190 is used to protect the second touch electrode 180A and the second conductive line 180B, and electrically isolate the second touch electrode 180A and the second conductive line 180B.

In summary, the touch panel of the present invention and the manufacturing method thereof distribute the first ink in the plurality of first openings of the first retaining wall pattern to form a plurality of first wires respectively located in the plurality of first openings . Since the first retaining wall pattern is a hydrophobic material An ink is a hydrophilic material, so when the first ink is distributed in a certain first opening of the first retaining wall pattern, the first ink is easily concentrated in a certain first opening, and is not easily spilled to the adjacent first An opening, which in turn causes a problem of shorting a plurality of adjacent first wires. Thereby, at the beginning of the design, the gap between the adjacent plurality of first openings (which is substantially equal to the gap between the adjacent plurality of first conductive lines formed later) can be designed to be smaller, thereby achieving the periphery thereof. A touch panel with a narrow width (ie, a narrow bezel) in the line area.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

Claims (30)

A method for manufacturing a touch panel includes: providing a substrate having a touch area and a peripheral line area outside the touch area; forming a first retaining wall pattern on the substrate, wherein the first block The wall pattern has a plurality of first openings in the peripheral line region; a first ink is distributed in the first openings on the substrate to form a plurality of first wires respectively located in the first openings, The first barrier wall pattern is a hydrophobic material and the first ink is a hydrophilic material; and a plurality of first touch electrodes are formed on the touch area of the substrate, wherein the first touch electrodes are respectively The first wires are electrically connected. The method of manufacturing the touch panel of claim 1, wherein the first retaining wall pattern further has a plurality of second openings in the touch area, and the touch area is formed on the touch area of the substrate The step of the first touch electrodes includes: distributing the first inks in the second openings to form the first touch electrodes respectively located in the second openings. The method of manufacturing the touch panel of claim 2, further comprising: distributing a second ink in the second openings before distributing the first ink to the second openings, A plurality of first anti-reflection patterns are formed, wherein the second ink is a hydrophilic material, and the second ink has a lower reflectivity than the first ink. The method of manufacturing the touch panel of claim 3, wherein the first anti-reflection patterns are electrically connected to the first touch electrodes. The method of manufacturing the touch panel of claim 1, further comprising: distributing a second ink in the first openings before distributing the first ink to the first openings, A plurality of second anti-reflection patterns are formed, wherein the second ink is a hydrophilic material, and the second ink has a lower reflectivity than the first ink. The method of manufacturing the touch panel of claim 5, wherein the second anti-reflection patterns are electrically connected to the first wires. The method of manufacturing the touch panel of claim 1, further comprising: after forming the first wires, forming a first insulating layer to cover the first wires and the first barrier pattern . The method of manufacturing the touch panel of claim 7, wherein after forming the first insulating layer, forming a second retaining wall pattern on the first insulating layer, wherein the second retaining wall pattern has a plurality of third openings located in the peripheral line region; a third ink is distributed in the third openings to form a plurality of second wires respectively located in the third openings, wherein the second retaining wall pattern a hydrophobic material and the third ink is a hydrophilic material; A plurality of second touch electrodes are formed on the touch area of the substrate, wherein the second touch electrodes are electrically connected to the second conductive lines, and the second touch electrodes extend in a direction The extending direction of a touch electrode is staggered. The method of manufacturing the touch panel of claim 8, wherein the second retaining wall pattern further has a plurality of fourth openings in the touch area, and the touch area is formed on the touch area of the substrate The step of the second touch electrodes includes: distributing the third inks in the fourth openings to form the second touch electrodes respectively located in the fourth openings. The method of manufacturing the touch panel of claim 9, further comprising: distributing a fourth ink in the fourth openings before distributing the third ink to the fourth openings, A plurality of third anti-reflection patterns are formed, wherein the fourth ink is a hydrophilic material, and the fourth ink has a lower reflectivity than the third ink. The method of manufacturing the touch panel of claim 10, wherein the third anti-reflective patterns are electrically connected to the second touch electrodes. The method of manufacturing the touch panel of claim 8, further comprising: distributing a fourth ink in the third openings before distributing the third ink to the third openings, A plurality of fourth anti-reflection patterns are formed, wherein the fourth ink is a hydrophilic material, and the fourth ink has a lower reflectivity than the third ink. The method of manufacturing the touch panel of claim 12, wherein the fourth anti-reflection patterns are electrically connected to the second wires. The method of manufacturing the touch panel of claim 8, further comprising: after forming the second wires, forming a second insulating layer to cover the second wires and the second barrier pattern . The method of manufacturing the touch panel of claim 1, further comprising: forming a shielding portion on the peripheral line region before forming the first barrier pattern on the substrate. A touch panel includes: a substrate having a touch area and a peripheral line area outside the touch area; a first retaining wall pattern on the substrate, the first retaining wall pattern having the peripheral line a plurality of first openings; a plurality of first wires respectively located in the first openings, wherein the first barrier pattern is a hydrophobic material and the first wires are hydrophilic materials; and a plurality of first The touch electrodes are located in the touch area of the substrate and are electrically connected to the first wires. The touch panel of claim 16 , wherein the first barrier pattern further has a plurality of second openings in the touch area, and the first touch electrodes are respectively located in the second openings . The touch panel of claim 17, further comprising: a plurality of first anti-reflection patterns are respectively located in the second openings and between the first touch electrodes and the substrate, wherein the first anti-reflection patterns are hydrophilic materials, and the first anti-reflections The reflectivity of the pattern is lower than the first touch electrodes. The touch panel of claim 18, wherein the first anti-reflection patterns are electrically connected to the first touch electrodes. The touch panel of claim 16, further comprising: a plurality of second anti-reflection patterns, located in the first openings and between the first wires and the substrate, wherein the second anti-resistances The reflective pattern is a hydrophilic material, and the second anti-reflective patterns have a lower reflectivity than the first conductive lines. The touch panel of claim 20, wherein the second anti-reflective patterns are electrically connected to the first wires, respectively. The touch panel of claim 16, further comprising: a first insulating layer covering the first wires and the first barrier pattern. The touch panel of claim 22, further comprising: a second retaining wall pattern on the first insulating layer, the second retaining wall pattern having a plurality of third portions located in the peripheral line region An opening; a plurality of second wires respectively located in the second grooves, wherein the second barrier pattern is a hydrophobic material and the second wire is a hydrophilic material; and a plurality of second touch electrodes are located at the second recess The touch regions of the substrate are electrically connected to the second wires, and the extending directions of the second touch electrodes are staggered with the extending directions of the first touch electrodes. The touch panel of claim 23, wherein the second barrier pattern further has a plurality of fourth openings in the touch area, and the second touch electrodes are respectively located in the fourth openings . The touch panel of claim 24, further comprising: a plurality of third anti-reflection patterns respectively located in the fourth openings and between the second touch electrodes and the first insulating layer, The third anti-reflection patterns are hydrophilic materials, and the third anti-reflection patterns have lower reflectance than the second touch electrodes. The touch panel of claim 25, wherein the third anti-reflective patterns are electrically connected to the second touch electrodes. The touch panel of claim 23, further comprising: a plurality of fourth anti-reflection patterns, located in the third openings and between the second wires and the substrate, wherein the fourth antibodies The reflective pattern is a hydrophilic material, and the fourth anti-reflective patterns have a lower reflectivity than the second conductive line. The touch panel of claim 27, wherein the fourth anti-reflection patterns are electrically connected to the second wires, respectively. The touch panel of claim 23, further comprising: a second insulating layer covering the second wires and the second retaining wall pattern. The touch panel of claim 16, further comprising: a shielding portion located between the peripheral circuit region and the first wires and the substrate.