TWI461983B - Touch panel and touch display panel - Google Patents

Description

Touch panel and touch display panel

The present invention relates to a panel, and more particularly to a touch panel and a touch display panel.

In recent years, touch technology has been widely used in various multimedia electronic products, especially mobile products such as mobile phones, e-books, and tablet computers. The use of touch technology as an input method can effectively replace the input method of the existing keyboard or mouse. In addition to convenience, and because of the intuitive operation, touch input technology has become a very popular human-machine interface and multimedia interaction.

Generally speaking, the touch panel is a highly customized product, that is to say, in addition to its function and size to meet the requirements of customers, the appearance also needs to meet the needs of customers. For example, the customer may have different requirements for attaching the flexible circuit board to the long side or the short side of the panel. Therefore, it is necessary to re-open one or more photomasks corresponding to the overlapping positions of the flexible circuit boards to make the connection. The pad set is such that the pad set is in a position to be able to overlap the flexible circuit board. However, re-creating the reticle will greatly increase the manufacturing cost of the touch panel, resulting in the inability to save production costs.

The invention provides a touch panel, and the configuration of the preliminary connection line and the pad group helps to cope with various overlapping positions of the circuit board.

The present invention further provides a touch display panel, wherein the configuration of the preliminary connection line and the pad group of the touch panel helps to cope with various overlapping positions of the circuit board.

The present invention provides a touch panel including a substrate, a touch sensing component, a fan-out line structure, a first pad set, a second pad set, and a plurality of first preliminary connection lines. The substrate includes a sensing area and a peripheral area, wherein the peripheral area surrounds the sensing area, and the peripheral area has at least a first side and a second side, the first side being different from the second side. The touch sensing component is disposed on the substrate of the sensing area. The fan-out line structure is disposed on the substrate, and the fan-out line structure includes a plurality of fan-out wires electrically connected to the touch sensing component, and the fan-out wire extends from the sensing region to the first side of the peripheral region. The first pad group is disposed on the substrate of the peripheral area and is located on the first side. The first pad group includes a plurality of first pads, and the first pads are electrically connected to the fan-out wires. The second pad group is disposed on the substrate of the peripheral area and located on the second side, and includes a plurality of second pads. The first preliminary connection line is disposed on the substrate of the peripheral area, wherein the second pad is electrically connected to the first pad via the first preliminary connection line.

The present invention further provides a touch display panel including a display panel and a touch panel. The touch panel is integrated with the display panel. The touch panel includes a substrate, a touch sensing component, a fan-out line structure, a first pad set, a second pad set, and a plurality of first preliminary connection lines. The substrate includes a sensing area and a peripheral area, wherein the peripheral area surrounds the sensing area, and the peripheral area has at least a first side and a second side, the first side being different from the second side. The touch sensing component is disposed on the substrate of the sensing area. The fan-out line structure is disposed on the substrate, and the fan-out line structure includes a plurality of fan-out wires, electrically connected to the touch sensing component, and the fan-out wire is sensed The zone extends to the first side of the perimeter zone. The first pad group is disposed on the substrate of the peripheral area and is located on the first side. The first pad group includes a plurality of first pads, and the first pads are electrically connected to the fan-out wires. The second pad group is disposed on the substrate of the peripheral area and located on the second side, and includes a plurality of second pads. The first preliminary connection line is disposed on the substrate of the peripheral area, wherein the second pad is electrically connected to the first pad via the first preliminary connection line.

Based on the above, the touch panel and the touch display panel of the present invention have a pad set and a preliminary connection line, wherein the pad set is disposed at least on both sides of the peripheral area of the substrate, and the preliminary connection line is electrically connected to the set of pads Therefore, all the pad groups are electrically connected to the touch sensing component. In this way, the combination of the preliminary connection line and the pad set helps to cope with various overlapping positions of the circuit board to meet the customization requirements of the customer. In particular, the cost of re-opening the mask for making the pads can be avoided, so as to reduce the manufacturing cost of the touch panel and the touch display panel.

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

FIG. 1 is a top plan view of a touch panel according to an embodiment of the invention. Referring to FIG. 1 , in the embodiment, the touch panel 100 includes a substrate 110 , a touch sensing component 120 , a fanout line structure 140 , a first pad set 150 a , a second pad set 150 b , and a plurality of first The connection line 170 is prepared. The substrate 110 includes a sensing region 112 and a peripheral region 114, wherein the peripheral region 114 surrounds the sensing region 112, and the peripheral region 114 has at least a first side 114a With a second side 114b, the first side 114a is different from the second side 114b. In the present embodiment, the first side 114a and the second side 114b are, for example, adjacent sides. For example, the first side 114a and the second side 114b are, for example, long sides and short sides of the peripheral area 114, respectively. The substrate 110 is, for example, a glass substrate, a plastic substrate, a flexible substrate, or another substrate.

The touch sensing component 120 is disposed on the substrate 100 of the sensing region 112. The touch sensing element 120 is, for example, a projected capacitive touch sensing element, but is not limited thereto. In this embodiment, the touch sensing component 120 includes, for example, a plurality of first sensing series 122 and a plurality of second sensing series 132. The first sensing series 122 is disposed, for example, on the substrate 110 and extends along a first direction D1 and disposed parallel to each other. The first sensing series 122 includes, for example, a plurality of first sensing pads 124 and a plurality of first bridge wires 126, and the first bridge wires 126 are connected in series with two adjacent first sensing pads 124. The second sensing series 132 is disposed, for example, on the substrate 102 and extends along a second direction D2 and arranged in parallel with each other.

The second sensing series 132 includes, for example, a plurality of second sensing pads 134 and a plurality of second bridge wires 136, and the second bridge wires 136 are connected in series with two adjacent second sensing pads 134, and the first direction D1 Different from the second direction D2. In the present embodiment, the first direction D1 is, for example, perpendicular to the second direction D2, and the first direction D1 is, for example, the x-axis direction and the second direction D2 is, for example, the y-axis direction. An insulation pattern (not shown) is disposed between the first sensing series 122 and the second sensing series 132, for example. In particular, although the touch sensing component having the structure shown in FIG. 1 is taken as an example in the embodiment, the present invention is not limited thereto. In other words, the touch sensing component can also be used. Other configurations well known to those skilled in the art, and further, since the materials, shapes, and the like of the sensing pads and bridge wires are well known to those skilled in the art, they are not described herein.

The fan-out line structure 140 is disposed on the substrate 110. The fan-out line structure 140 includes a plurality of fan-out wires 142 electrically connected to the touch sensing component 120. The fan-out wire 142 extends from the sensing region 112 to the peripheral region 114. One side 114a. In this embodiment, a portion of the fan-out wires 142 are electrically connected to the first sensing series 122 located in the sensing region 112, and another portion of the fan-out wires 142 and the second sensing string located in the sensing region 112. Columns 132 are electrically connected, and fan-out wires 142 extend from sensing region 112 to first side 114a of peripheral region 114.

The first pad set 150a is disposed on the substrate 110 of the peripheral area 114 and is located on the first side 114a. The first pad set 150a includes a plurality of first pads 152a. The first pads 152a are electrically connected to the fan-out wires 142. . In detail, one end of the fan-out wire 142 is connected to the first sensing series 122 or the second sensing series 132, and the other end of the fan-out wire 142 is connected to the first pad 152a, so that the touch is made. The sensing component 120 is electrically connected to the first pad set 150a.

The second pad set 150b is disposed on the substrate 110 of the peripheral region 114 and on the second side 114b, and includes a plurality of second pads 152b. In this embodiment, the number of the first pads 152a and the second pads 152b is the same, for example, and the first pads 152a and the second pads 152b have a one-to-one correspondence, for example.

The first preliminary connection line 170 is disposed on the substrate 110 of the peripheral area 114 The second pad 152b is electrically connected to the first pad 152a via the first preliminary connection line 170. In other words, each of the first preliminary connection lines 170 is disposed between a first pad 152a and a second pad 152b, such that the first pad 152a and the second pad 152b have a one-to-one connection. . As a result, the second pad group 150b is electrically connected to the fan-out line structure 140 via the first preliminary connection line 170 and the first pad group 150a, and is electrically connected to the touch sensing element 120. In general, the first preliminary connection line 170 is configured such that the first pad 152a and the second pad 152b have the shortest path. For example, in the embodiment, the first pad group 150a and The second pad set 150b is, for example, located adjacent to the first side 114a and the second side 114b of the peripheral zone 114, such that the first preliminary connection line 170 is disposed on the first side 114a and the second side as shown in FIG. 114b. Of course, in other embodiments (not shown), it is also possible to arrange the first preliminary connection line 170 on both sides of the first side 114a and the second side 114b for other purposes, to electrically connect the first connection. Pad set 150a and second pad set 150b. Furthermore, although the first preliminary connection line 170 is connected to the first pad group 150a and the second pad group 150b in the manner shown in FIG. 1, the present invention is not limited thereto, in other words, the first preparation. The connecting wire 170 may also connect the first pad 152a and the second pad 152b in other manners.

In this embodiment, the material of the first preliminary connection line 170 is, for example, an opaque conductive material, a transparent conductive material or a laminate of the two, wherein the opaque conductive material is, for example, gold, silver, copper, aluminum, molybdenum, titanium, chromium. a metal such as cadmium, tungsten, zinc or nickel or an alloy thereof, and a transparent conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO) or other transparent conductive metal oxide. change In other words, the first preliminary connection line 170 may be, for example, the same material as the pads 152a, 152b, the same material as the sensing pads 124, 134, or the same material as the bridge wires 126, 136 or other conductive members. Therefore, the first preliminary connection line 170 can be fabricated together with the above-described members having the same material without additionally adding a process step of the touch panel.

From the perspective of the process, the touch panel 100 having the above structure is a touch panel product that is commonly used for the subsequent step of lapping a circuit board. In other words, since the touch panel 100 has the first pad group 150a and the second pad group 150b, it is suitable for the customer to meet the customization requirements of the position of the lap board to make a customized touch. Control panel. For example, as shown in FIG. 1, when the customer's requirement is to overlap the circuit board PCB on the first side 114a of the peripheral region 114 of the substrate 110, the circuit board PCB and the first pad group 150a are electrically connected. connection. In addition, in order to prevent the second pad group 150b from being affected by the external environment, the second pad group 150b may be further covered by the first protection pad 180. Therefore, in the embodiment, the touch panel 100 further includes a circuit board PCB, and is electrically connected to the first pad group 150a. The circuit board PCB is, for example, a flexible circuit board. Moreover, the touch panel 100c further includes, for example, a first protection pad 180 covering the second pad group 150b.

In another embodiment, as shown in the touch panel 100a of FIG. 2, when the customer's requirement is to overlap the circuit board PCB on the second side 114b of the peripheral region 114 of the substrate 100, the circuit board PCB is The second pad set 150b is electrically connected. In addition, in order to prevent the first pad group 150a from being affected by the external environment, the first pad group 150a may be further covered by the first protection pad 180. Therefore, in the embodiment, the touch panel 100a includes, for example, a circuit board. The PCB is electrically connected to the second pad set 150b. The circuit board PCB is, for example, a flexible circuit board. Moreover, the touch panel 100a further includes, for example, a first protection pad 180 covering the first pad group 150a. In the above embodiment, the first side 114a and the second side 114b are adjacent to each other as an example, but in another embodiment, the display panels 100b, 100c shown in FIG. 3 and FIG. The first side 114a and the second side 114b may also be opposite sides. In particular, although in the above embodiments, the pad group 150a, 150b that is not electrically connected to the circuit board PCB is covered by the protection pad 180, in other embodiments, the protection pad may be omitted. 180 configuration.

In the above embodiment, a second set of pads 150b electrically connected to the first pad set 150a by the first preliminary connection line 170 is left in the touch panels 100-100c, thereby facilitating the response. Various overlapping positions of the circuit board PCB to meet the customer's customized requirements. In other words, the touch panels 100-100c have a general structure suitable for the requirements of the customized board overlap position, so that it is possible to avoid re-opening the mask for making the pads in order to match the position of the lap PCB. The cost of making a touch panel. In addition, since the preparation of the preliminary connection line and the pad group can be easily combined with the existing touch panel process, the process time and steps of the touch panel are not greatly increased.

In the above embodiments, a set of second pad sets 150 b that can be electrically connected to the circuit board PCB are reserved on one side of the touch panels 100 - 100c as an example, but the present invention does not. Limited to this. In other words, a pad set that can be electrically connected to the circuit board PCB can be reserved on one side of the touch panel.

FIG. 5 is a top plan view of a touch panel according to an embodiment of the invention. The structure of the touch panel of FIG. 5 is substantially the same as that of the touch panel of FIG. 1, and the differences are described below. Referring to FIG. 5 , in the embodiment, the touch panel 100 d further includes a third pad set 150 c and a plurality of second preliminary connection lines 172 . The third pad set 150c is disposed, for example, on the substrate 110 of the peripheral region 114 and on a third side 114c of the peripheral region 114. The third pad set 150c includes a plurality of third pads 152c. The second preliminary connection line 172 is disposed on the substrate 110 of the peripheral region 114, wherein the third pad 152c is electrically connected to the first pad 152a via the second preliminary connection line 172. In this embodiment, the first side 114a and the second side 114b are, for example, adjacent sides, and the third side 114c and the first side 114a are, for example, adjacent sides. In this embodiment, the second preliminary connection line 172 connects the third pad 152c and the first pad 152a.

In another embodiment, as shown in FIG. 6 , the first side 114 a and the second side 114 b are opposite sides, for example, and the third side 114 c and the second side 114 b are, for example, adjacent sides. In this embodiment, the second preliminary connection line 172 connects the third pad 152c and the first pad 152a. In a further embodiment (not shown), the second preliminary connection line 172 may also be connected to the third pad 152c and the second pad 152b. In other words, the third pad 152c is electrically connected to the first pad 152a via the second preliminary connection line 172. Therefore, the third pad 152c may be directly connected to the first pad 152a via the second preliminary connection line 172. The second preliminary connection line 172 is disposed between the third pad 152c and the first pad 152a, or the third pad 152c can be connected to the second via the second preliminary connection line 172. The pads 152b are connected to each other and electrically connected to the first pads 152a via the first preliminary connection lines 170, that is, the second preliminary connection lines 172 are disposed between the third pads 152c and the second pads 152b.

In particular, the touch panel 100d, 100e may further include a circuit board PCB and a protection pad 180, 182. The circuit board PCB is electrically connected to any of the pad sets 150a, 150b, 150c, and the protection pads 180, 182. A pad set 150a, 150b, 150c that is not electrically connected to the circuit board PCB is covered. In the above embodiment, the circuit board PCB is electrically connected to the pad group 150b and the protection pads 180, 182 cover the pad group 150a, 150c not electrically connected to the circuit board PCB, but the invention is not limited thereto. .

FIG. 7 is a top plan view of a touch panel according to an embodiment of the invention. The structure of the touch panel of FIG. 7 is substantially the same as that of the touch panel of FIG. 6, and the differences are described below. Referring to FIG. 7, in the present embodiment, the first side 114a of the peripheral region 114 is, for example, adjacent to the second side 114b, and the first side 114a is, for example, opposite the third side 114c. The touch panel 100f includes, for example, a fourth pad set 150d and a plurality of third preliminary connection lines 174. The fourth pad group 150d is disposed on the substrate 110 of the peripheral region 114 and located on a fourth side 114d of the peripheral region 114. The fourth pad group 150d includes a plurality of fourth pads 152d. The third preliminary connection line 174 is disposed on the substrate 110 of the peripheral region 114, wherein the fourth pad 152d is electrically connected to the first pad 152a via the third preliminary connection line 174. In the embodiment, the third preliminary connection line 174 is connected to the fourth pad 152d and the first pad 152a, for example. In addition, the touch panel 100g further includes a plurality of fourth preliminary connection lines 176 disposed on the peripheral area 114, wherein the fourth preparation The connection line 176 is, for example, connected to the fourth pad 152d and the third pad 152c. In this way, any two adjacent pad sets 150a, 150b, 150c, 150d are provided with preliminary connection lines 170, 172, 174, 176, so that between any two pad sets 150a, 150b, 150c, 150d Has the shortest current conduction path to increase current conduction speed. Furthermore, the risk of disconnection due to damage to any of the preliminary connection lines 170, 172, 174, 176 can also be reduced.

As shown in FIG. 8, in the touch panel 100g of another embodiment, the first side 114a of the peripheral region 114 is adjacent to the second side 114b, for example, and the first side 114a is adjacent to the third side 114c, for example. . The third preliminary connection line 174 is connected to the fourth pad 152d and the second pad 152b, for example. For example, the touch panel 100g further includes a plurality of fourth preliminary connection lines 176 disposed on the peripheral area 114. The fourth preliminary connection lines 176 are connected to the fourth pads 152d and the third pads 152c, for example.

In particular, the touch panel 100f, 100g may further include a circuit board PCB and a protection pad 180, 182, 184. The circuit board PCB is electrically connected to any of the pad sets 150a, 150b, 150c, and 150d, and is protected. The pads 180, 182 cover the pad sets 150a, 150b, 150c, 150d that are not electrically connected to the circuit board PCB. In the above embodiment, the circuit board PCB is electrically connected to the pad group 150c and the protection pads 180 and 182 cover the pad groups 150a, 150b, and 150d that are not electrically connected to the circuit board PCB. However, the present invention does not. Limited to this.

In the above embodiment, the third pad group 150c is disposed on the third side 114c of the peripheral region 114 of the touch panel 100e, 100f, and the third side 114c of the peripheral region 114 of the touch panel 100f, 100g is First The fourth side 114d is configured with a third pad set 150c and a fourth pad set 150d. In this way, the overlapping position of the circuit board PCB is more flexible, which helps to cope with various overlapping positions of the circuit board PCB to meet the customization requirements of the customer. In other words, the touch panels 100d-100g have a general structure suitable for the customization requirements of the customer, so that it is possible to avoid re-opening the mask for making the pads in order to match the position of the lap board PCB, thereby reducing the touch panel. production cost. In addition, since the preparation of the preliminary connection line and the pad group can be easily combined with the existing touch panel process, the process time and steps of the touch panel are not greatly increased.

FIG. 9 is a cross-sectional view of a touch display panel according to an embodiment of the invention. The touch display panel 10 includes a display panel 200 and a touch panel 100. The touch panel 100 is attached to the display panel 200. The structure of the touch panel 100 can be referred to the foregoing embodiment. For details, the touch panel 100 can also be the touch panel 100a-100g or Other touch panels with similar structures. In the present embodiment, the display panel 200 is, for example, a liquid crystal display panel, an organic display panel, an electrophoretic display panel, a plasma display panel, or a field emission display panel. The touch panel 100 is bonded to the display panel 200 by, for example, an adhesive layer 210 to form an external touch display panel.

In this embodiment, since the touch panel 100 has a general structure suitable for the customized position of the circuit board, it is possible to avoid re-opening the mask for making the pads in order to match the position of the overlapping circuit board. To reduce the manufacturing cost of the touch display panel. In addition, since the preparation of the preliminary connection line and the pad group can be easily combined with the process of the existing touch display panel, Therefore, the process time and steps of the touch display panel are not greatly increased.

In particular, in the above embodiment, the touch panel 100 and the display panel 200 are combined into an external touch-type liquid crystal display panel. However, in other embodiments, the touch panel 100 can also be fabricated. It is an integrated touch liquid crystal display panel or a built-in touch liquid crystal display panel, which is well known to those skilled in the art, and therefore will not be described again.

In summary, the touch panel and the touch display panel of the present invention have a pad set and a preliminary connection line, wherein the pad set is disposed at least on both sides of the peripheral area of the substrate, and the preliminary connection line is electrically connected to the connection The pad group is such that all the pad groups are electrically connected to the touch sensing component. In this way, the combination of the preliminary connection line and the pad set helps to cope with various overlapping positions of the circuit board. In other words, the touch panel has a universal structure suitable for the overlapping positions of various circuit boards, so that it can be customized with the customer's customization. The requirements are to configure the board. In this way, it is possible to avoid re-opening the photomask of the fabrication pad in order to match the position of the lap circuit board, so as to reduce the manufacturing cost of the touch display panel. In addition, since the preparation of the preliminary connection line and the pad group can be easily combined with the process of the existing touch display panel, the process time and steps of the touch display panel are not greatly increased.

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

10‧‧‧Touch display panel

100~100g‧‧‧ touch panel

110‧‧‧Substrate

112‧‧‧Sensing area

114‧‧‧The surrounding area

114a~114d‧‧‧ side

120‧‧‧Touch sensing components

122, 132‧‧‧ Sensing series

124, 134‧‧‧ Sense pads

126, 136‧‧ ‧ bridge wiring

D1, D2‧‧‧ direction

140‧‧‧Fan-out line structure

142‧‧‧Fan wire

150a~150d‧‧‧push group

170, 172, 174, 176‧‧ ‧ preparatory cable

180, 182, 184‧‧‧ protective pads

200‧‧‧ display panel

210‧‧‧Adhesive layer

PCB‧‧‧PCB

FIG. 1 is a top plan view of 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.

FIG. 3 is a top plan view of a touch panel according to an embodiment of the invention.

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

FIG. 5 is a top plan view of a touch panel according to an embodiment of the invention.

FIG. 6 is a top plan view of a touch panel according to an embodiment of the invention.

FIG. 7 is a top plan view of a touch panel according to an embodiment of the invention.

FIG. 8 is a top plan view of a touch panel according to an embodiment of the invention.

FIG. 9 is a top plan view of a touch display panel according to an embodiment of the invention.

100a‧‧‧ touch panel

110‧‧‧Substrate

112‧‧‧Sensing area

114‧‧‧The surrounding area

114a, 114b‧‧‧ side

120‧‧‧Touch sensing components

122, 132‧‧‧ Sensing series

124, 134‧‧‧ Sense pads

126, 136‧‧ ‧ bridge wiring

140‧‧‧Fan-out line structure

142‧‧‧Fan wire

150a, 150b‧‧‧ pads group

170‧‧‧Preparation cable

180‧‧‧protection mat

D1, D2‧‧‧ direction

PCB‧‧‧PCB

Claims (18)

A touch panel includes a substrate including a sensing area and a peripheral area, wherein the peripheral area surrounds the sensing area, the peripheral area having at least a first side and a second side, the first side being different from the first side The second side; a touch sensing component disposed on the substrate of the sensing area; a fan-out circuit structure disposed on the substrate, the fan-out circuit structure comprising a plurality of fan-out wires, electrically connected The touch sensing component extends from the sensing region to the first side of the peripheral region; a first pad group disposed on the substrate of the peripheral region and located on the first side The first pad set includes a plurality of first pads, the first pads are electrically connected to the fan-out wires, and a second pad group is disposed on the substrate of the peripheral region and located at the The second side includes a plurality of second pads; and a plurality of first preliminary connecting lines are disposed on the substrate of the peripheral area, wherein the first pads and the second pads are opposite to the second pads a preliminary connection line physical connection, such that the second pads pass the first preliminary connection lines and the Pad electrically connected. The touch panel of claim 1, wherein the first side and the second side are adjacent sides. The touch panel of claim 1, wherein the first side and the second side are opposite sides. The touch panel of claim 1, further comprising a circuit board electrically connected to the first pad set. The touch panel of claim 1, further comprising a The first protection pad covers the second pad sets. The touch panel of claim 1, further comprising a circuit board electrically connected to the second pad set. The touch panel of claim 1, further comprising a first protection pad covering the first pad sets. The touch panel of claim 1, further comprising: a third pad set disposed on the substrate of the peripheral area and located on a third side of the peripheral area, the third pad The group includes a plurality of third pads; and a plurality of second preliminary connecting wires disposed on the substrate of the peripheral region, wherein the third pads pass the second preliminary connecting wires and the first pads Electrical connection. The touch panel of claim 8, wherein the first side and the second side are adjacent sides, and the third side and the first side are adjacent sides. The touch panel of claim 8, wherein the second preliminary connection lines connect the third pads and the first pads. The touch panel of claim 8, wherein the first side and the second side are opposite sides, and the third side and the second side are adjacent sides. The touch panel of claim 8, wherein the second preliminary connection lines connect the third pads and the second pads. The touch panel of claim 8, further comprising: a fourth pad set disposed on the substrate of the peripheral area and located at the substrate a fourth pad on the peripheral area includes a plurality of fourth pads; and a plurality of third preliminary connecting lines are disposed on the peripheral area, wherein the fourth pads are connected to the third preliminary connection line Some of the first pads are electrically connected. The touch panel of claim 13, wherein the third preliminary connection lines connect the fourth pads and the first pads. The touch panel of claim 14, further comprising a plurality of fourth preliminary connecting lines disposed on the peripheral area, wherein the fourth preliminary connecting lines connect the fourth pads and the plurality of Three pads. The touch panel of claim 13, wherein the third preliminary connection lines connect the fourth pads and the second pads. The touch panel of claim 16, further comprising a plurality of fourth preliminary connecting lines disposed on the peripheral area, wherein the fourth preliminary connecting lines connect the fourth pads and the plurality of Three pads. A touch display panel includes: a display panel; a touch panel that is attached to the display panel, the touch panel includes: a substrate, including a sensing area and a peripheral area, wherein the peripheral area surrounds the sensing a peripheral area having at least a first side and a second side, the first side being different from the second side; a touch sensing component disposed on the substrate of the sensing area; a fan-out line The fan-out line structure includes a plurality of fan-out wires electrically connected to the touch sensing components, and the fan-out wires extend from the sensing region to the first side of the peripheral region a first pad set disposed on the substrate of the peripheral region and having a position On the first side, the first pad group includes a plurality of first pads, the first pads are electrically connected to the fan-out wires, and a second pad group is disposed in the peripheral region. a plurality of second pads on the substrate, and a plurality of second pads; and a plurality of first preliminary connection lines disposed on the substrate of the peripheral region, wherein the first pads and the second pads The first preliminary connection lines are physically connected to the second preliminary pads, and the second pads are electrically connected to the first pads via the first preliminary connection lines.