TW201520836A - Touch panel - Google Patents

Abstract

A touch panel including a substrate, a touch sensing element, signal wires, a first insulation layer, a first electrode layer and a flexible printed circuit board is provided. The signal wires are electrically connected to the touch sensing element and include an out lead bonding area. The first electrode layer includes a light transmissive conductive layer and a connecting pad. The flexible printed circuit board has a touch signal portion and a shielding signal portion electrically respectively connected to the signal wires and the connecting pad. A distance between a margin of the substrate and a side of the out lead bonding area close thereto defines a first length, and a distance between the margin of the substrate and a side of the connecting pad close thereto defines a second length, wherein the first length is substantially identical to the second length.

Description

Touch panel

The present invention relates to a touch panel, and in particular to a touch panel with good electrical shielding effect.

The touch panel can be roughly classified into a resistive touch panel, a capacitive touch panel, an optical touch panel, an acoustic wave touch panel, and an electromagnetic touch panel according to different sensing forms. Since capacitive touch panels have advantages such as fast response time, good reliability, and high definition compared with other types of touch panels, they are widely used in various types of handheld electronic devices. In general, the touch panel display area is provided with a touch sensing component, and the touch sensing component can transmit touch signals through a plurality of signal wires disposed in the peripheral area, wherein the ends of the signal wires are concentrated around the periphery. One side forms an outer lead bonding region. The pin bond area is electrically connected to a flexible printed circuit board.

Touch panels are often used in conjunction with display panels to form touch display devices. However, in the touch panel, if there is an electrostatic discharge (electrostatic discharge, When an ESD phenomenon occurs, static electricity may be introduced into the display panel through the touch panel through the common potential conduction structure, thereby causing a display screen of the display panel to be defective. Therefore, an electrode layer can be disposed between the touch panel and the display panel to reduce the mutual interference of signals between the touch panel and the display panel.

The electrode layer is also electrically connected to the flexible printed circuit board. The flexible printed circuit board includes, for example, a touch signal portion and a mask signal portion for electrically connecting the touch sensing component and the electrode layer, respectively. A typical electrode layer is, for example, aligned with the side of the pin bond area that is closer to the display area, so the distance from the pin bond area to the nearest substrate edge and the distance from the electrode layer to the nearest substrate edge are different. Therefore, the length of the touch signal portion of the flexible printed circuit board extending from the edge of the substrate to the display area is different from the length of the shadow signal portion extending from the edge of the substrate to the display area. Therefore, when the conventional flexible printed circuit board is pulled, the touch signal portion and the masking signal portion having different lengths are liable to cause poor quality of the electrical connection due to uneven force.

The invention provides a touch panel with ideal electrical connection quality.

A touch panel of the present invention includes a substrate, a touch sensing component, a plurality of signal wires, a first insulating layer, a first electrode layer, and a flexible printed circuit board. The substrate has a display area and a peripheral area, wherein the peripheral area is adjacent to the display area. The touch sensing component is disposed on the substrate and at least in the display area. The signal wire is electrically connected to the touch sensing component and defines a pin bonding area in the peripheral area. First An insulating layer covers the touch sensing element. The first electrode layer is disposed on the first insulating layer and covers the display area and at least a portion of the peripheral area. The first electrode layer includes a substrate, a light-transmitting conductive layer, and a connection pad. The light-transmitting conductive layer is disposed on the substrate. The connection pad is disposed on the light-transmissive conductive layer. The flexible printed circuit board has a touch signal portion and a mask signal portion electrically connected to the signal wires and the connection pads in the pin bond regions. One side of the edge of the lead substrate adjacent to the substrate defines a first length with the edge of the substrate, and one side of the edge of the connection pad adjacent to the substrate defines a second length, the first length and the second length being substantially the same.

Based on the above, since the first length of one side of the lead bonding region of the present invention adjacent to the edge of the substrate to the edge of the substrate is the same as the second length of one side of the connecting pad adjacent to the edge of the substrate to the edge of the substrate, the flexible printed circuit board is transmitted through the flexible printed circuit board. After the touch signal portion and the shielding signal portion are electrically connected to the pin bonding region and the connection pad, the touch panel of the present invention is not easily damaged due to the uneven force caused by the flexible printed circuit board being pulled. Can have good electrical connection quality.

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

100a, 100b, 100c‧‧‧ touch panel

110‧‧‧Substrate

110s‧‧‧ edge

102‧‧‧ display area

104‧‧‧The surrounding area

120‧‧‧Touch sensing components

122‧‧‧Signal wire

124‧‧‧ pin joint area

124a‧‧‧ first side

124b‧‧‧ second side

126‧‧‧ Conductive ring

127‧‧‧First touch electrode layer

127a‧‧‧Substrate

127b‧‧‧First conductor layer

128‧‧‧Second touch electrode layer

128a‧‧‧Substrate

128b‧‧‧Second conductor layer

130‧‧‧First insulation

140‧‧‧First electrode layer

140a‧‧‧Snowy area

140b‧‧‧Shading Department

140c‧‧‧Extension

142‧‧‧Substrate

144‧‧‧Light conductive layer

144a‧‧‧ Block

146‧‧‧ Conductive ring

148‧‧‧Connecting mat

150‧‧‧Flexible printed circuit board

152‧‧‧Touch Signal Department

154‧‧‧Shielding Signal Department

160‧‧‧Lighting layer

170‧‧‧Second electrode layer

180‧‧‧Second insulation

190a, 190b, 190c‧‧ ‧ adhesive layer

I-I’‧‧‧ cut line

L1‧‧‧ first length

L2‧‧‧ second length

M‧‧‧ area

R‧‧‧ reference line

S‧‧‧ gap

FIG. 1A is a top view of a touch panel according to an embodiment of the invention.

FIG. 1B is an enlarged schematic view of a region M of FIG. 1A.

Fig. 1C is a schematic cross-sectional view taken along line I-I' of Fig. 1B.

FIG. 1D is a partial cross-sectional view of a touch panel according to another embodiment of the present invention.

FIG. 1E is a top view of a touch panel according to another embodiment of the invention.

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

FIG. 3 is a schematic top view of a touch panel according to another embodiment of the present invention.

4A is a top view of a touch panel according to another embodiment of the present invention.

FIG. 4B is a top view of a touch panel according to another embodiment of the present invention.

Fig. 4C is a schematic cross-sectional view taken along line II-II' of Fig. 4B.

4D is a top view of a touch panel according to another embodiment of the present invention.

Fig. 4E is a schematic cross-sectional view taken along line II-II' of Fig. 4D.

FIG. 5A is a schematic diagram of a three-dimensional explosion of the touch panel.

FIG. 5B is a schematic side view of the touch panel of FIG. 5A after assembly.

FIG. 6A is a schematic exploded perspective view of a touch panel according to another embodiment of the invention.

FIG. 6B is a schematic side view of the touch panel of FIG. 6A after assembly.

FIG. 6C is a top view of the touch panel of FIG. 6A.

FIG. 7A is a schematic exploded perspective view of a touch panel according to another embodiment of the present invention.

FIG. 7B is a schematic side view of the touch panel of FIG. 7A after assembly.

FIG. 1A is a top view of a touch panel according to an embodiment of the invention. FIG. 1B is an enlarged schematic view of a region M of FIG. 1A. Fig. 1C is a schematic cross-sectional view taken along line I-I' of Fig. 1B. Referring to FIG. 1A , FIG. 1B and FIG. 1C , the touch panel 100 a includes a substrate 110 , a touch sensing component 120 , a first insulating layer 130 , and a sticky layer . A glue layer 132, a first electrode layer 140, and a flexible printed circuit board 150. The touch panel 100a has a display area 102 and a peripheral area 104, wherein the peripheral area 104 is adjacent to the display area 102.

The touch sensing component 120 is disposed at least in the display area 102. The touch sensing component 120 can be interleaved by a plurality of sensing strings, wherein the sensing signals of the sensing series can be transmitted by a plurality of signal wires 122 disposed in the peripheral region 104. These signal wires 122 extend to one side of the peripheral region 104 to form a pin bond region 124. In addition, when the signal wires 122 are formed, a conductive ring 126 can be simultaneously formed, and the conductive ring 126 surrounds the signal wires 122. The surface resistance of the conductive ring 126 is generally less than 1 Ω/□, so that external environmental interference signals (such as Electrostatic Discharge (ESD), Electromagnetic Interference (EMI), etc.) can be extremely short via the conductive ring 126. Conducted to the ground potential during the time.

The touch panel 100a further includes a light shielding layer 160. The light shielding layer 160 is disposed in the peripheral region 104, and the signal wires 122 are disposed on the light shielding layer 160. Specifically, the light shielding layer 160 is formed of, for example, a non-translucent material such as ink or photoresist, so that the signal wire 122 can be shielded from the user to see the setting of the signal wire 122.

The first insulating layer 130 covers the touch sensing component 120 , the signal wire 122 , and the conductive ring 126 , wherein the first insulating layer 130 exposes the signal wire 122 located in the pin bonding region 124 . In other embodiments, a second electrode layer 170 can be selectively disposed on the light shielding layer 160, as shown in FIG. 1D. Specifically, the second electrode layer 170 is disposed on the light shielding layer 160 and surrounds the touch sensing element 120 . a second insulating layer The second electrode layer 170 is covered by the 180, and the signal wire 122 is disposed on the second insulating layer 180 above the second electrode layer 170. When the user operates the panel, the hand-held portion of the human body may be electrically coupled to the signal conductor 122. The second electrode layer 170 may suppress signal interference caused by the conductor approaching the edge of the substrate 110.

Referring to FIG. 1A , FIG. 1B and FIG. 1C , the first electrode layer 140 is disposed on the first insulating layer 130 , and the adhesive layer 132 is located between the first electrode layer 140 and the first insulating layer 130 . The first electrode layer 140 covers at least the touch sensing element 120 in the display area 102. In the embodiment, the first electrode layer 140 includes a substrate 142 and a light-transmissive conductive layer 144. In addition, a conductive ring 146 is further disposed on the first electrode layer 140. The conductive ring 146 is disposed on the light-transmissive conductive layer 144 and has a connection pad 148. In other words, the conductive ring 146 and the connection pad 148 may be formed by the same process, or may be formed by two separate processes. In addition, the conductive ring 146 can be omitted and only the connection pads 148 can be omitted, as shown in FIG. 1E. The advantage of having a conductive ring 146 is that it provides additional resistance to external static electricity and allows static electricity on the light-transmissive conductive layer 144 to pass through the conductive ring 146 for rapid venting. The material of the substrate 142 may be a dielectric material, such as: photoresist, resin, polymethyl methacrylate (PMMA), propylene carbonate (PC), polyethylene terephthalate (PolyEthylene Terephthalate). , PET) and other related materials. The material of the light-transmitting conductive layer 144 is a conductive material, for example, a metal oxide or a metal thin film, wherein the metal oxide is, for example, indium tin oxide (ITO) or indium zinc oxide (IZO). In other words, the first electrode layer 140 is, for example, a two-layer structure composed of the substrate 142 and the light-transmitting conductive layer 144. Further, the first electrode layer 140 covers the touch sensing component 120 and the signal wire 122, wherein the substrate 142 can be isolated. The contact of the sensing element 120 with the air is controlled to enhance the protection against the electrostatic discharge damage, and the light-transmitting conductive layer 144 can serve as a means for diverting static electricity. In the present embodiment, the first electrode layer 140 further covers the signal wires 122 in the portion of the peripheral region 104, and the edge of the first electrode layer 140 is at least 0.3 mm from the edge of the substrate 110. Of course, the invention is not limited thereto. In other embodiments, the first electrode layer 140 may also be a single layer film composed of the light-transmitting conductive layer 144.

Based on the conductivity considerations, the connection pad 148 and the conductive ring 146 are made of, for example, silver paste having good conductivity, so that the conductive resistance of the light-transmitting conductive layer 144 can be lowered.

In the present embodiment, one side of the edge of the pin bonding region 124 adjacent to the substrate 110 defines a first length L1 with the edge of the substrate 110, and one side of the edge of the connection pad 148 adjacent to the substrate 110 defines an edge with the edge of the substrate 110. The second length L2, the first length L1 is substantially the same as the second length L2.

In addition, referring to FIG. 1A, the first electrode layer 140 covers the display region 102 and a portion of the peripheral region 104 to define a hollow region 140a that exposes at least the pin bond region 124.

In another aspect, the first electrode layer 140 includes a shielding portion 140b and an extending portion 140c. The shielding portion 140b mainly covers the touch element 120 of the display area 102 and the signal line 122 of the peripheral area 104 to shield the touch. Interference signals between the panel 100a and other electronic devices such as display panels. In the present embodiment, the cutout region 140a exposes the pin bond region 124. The shielding portion 140b is, for example, located on one side of the pin bonding region 124. A reference line R parallel to the edge of the pin bonding region 124 may be defined between the shielding portion 140b and the pin bonding region 124, and the extending portion 140c protrudes from The shield portion 140b extends over the reference line R and is located on the other side of the pin bond region 124. A connecting pad 148 may be disposed on the extending portion 140c, and the connecting pad 148 and the flexible printed circuit board 150 are coupled to each other.

Specifically, the shield portion 140b is substantially located on a first side 124a of the pin bond region 124, and the extension portion 140c is located at least at a second side 124b of the pin bond region 124, wherein the first side 124a and the second side 124b Adjacent to each other, the first electrode layer 140 at least surrounds adjacent sides of the pin bonding region 124, and the distance from the extending portion 140c to the edge 110s of the substrate 110 is not greater than the distance from the shielding portion 140b to the edge 110s of the substrate 110.

In the embodiment illustrated in FIG. 2, the first electrode layer 140 surrounds three adjacent sides of the pin bond region 124. Alternatively, in the embodiment illustrated in FIG. 3, the first electrode layer 140 may completely surround the pin bond region 124. In particular, it is the spirit of the present invention to protect the extension portion 140c beyond the reference line R such that the first electrode layer 140 substantially surrounds at least adjacent sides of the pin bond region 124. In particular, when the hollow region 140a exposes only the pin bond region 124 to completely cover the region other than the pin bond region 124, the first electrode layer 140 can make the touch panel 100a have better explosion-proof. Features, as shown in Figure 3.

In other embodiments, the light-transmissive conductive layer 144 may be patterned to form two blocks 144a, and the two blocks 144a have a gap S therebetween and are separated from each other, as shown in FIG. 4A. The gap S spatially separates the light-transmissive conductive layer 144 into two halves. When electrical noise is generated in the external environment, the interference signal can be quickly transmitted to the grounded environment via the conductive ring 146 in the shortest path, and the panel is lifted. The ability to suppress noise interference. In addition, the light-transmissive conductive layer 144 may also be spatially separated into a plurality of symmetric or asymmetric blocks, and may be partially or completely connected to the conductive ring 146. FIG. 4B is a top view of a touch panel according to another embodiment of the present invention. Fig. 4C is a schematic cross-sectional view taken along line II-II' of Fig. 4B. As shown in FIG. 4B and FIG. 4C, the first electrode layer 140 is attached to the first insulating layer 130 through the adhesive layer 132. The light-transmissive conductive layer 144 can be divided into four symmetrical blocks 144a, and each of the blocks 144a is electrically connected to one of the conductive rings 146. Therefore, in FIG. 4C, the adjacent two conductive rings 146 are broken. Opened. 4D is a top view of a touch panel according to another embodiment of the present invention. Fig. 4E is a schematic cross-sectional view taken along line II-II' of Fig. 4D. As shown in FIG. 4D and FIG. 4E, the light-transmissive conductive layer 144 can be divided into four symmetrical blocks 144a, and all of the blocks 144a are electrically connected to the same conductive ring 146. Therefore, in FIG. 4E, adjacent The two blocks 144a are connected to the same conductive ring 146. The plurality of blocks separated by the foregoing area, in addition to being grounded to suppress noise, may also give the same or different potentials through the IC clock driving signal to cause a capacitive coupling effect with the touch sensing element 120. A large-area electric field effect is formed in the space to enhance the capacitive sensing capability of the user and the touch panel, and the touch user can operate the panel without contacting the substrate 110 to achieve the function of the hovering touch.

Referring to FIG. 1A again, the flexible printed circuit board 150 includes a touch signal portion 152 and a mask signal portion 154. The touch signal portion 152 and the mask signal portion 154 are electrically connected to the touch sensing element 120 and the first electrode layer 140, respectively. Specifically, the touch signal portion 152 is electrically connected to the signal wire 122 located in the pin bonding region 124, for example. The masking signal portion 154 is, for example, located at the first electrode layer 140 The connection pads 148 on the extension portion 140c are electrically connected. The touch signal portion 152 extends from the edge 110s of the substrate 110 to the display region 102, and the mask signal portion 154 extends from the edge 110s of the substrate 110 toward the display region 102. From another point of view, the masking signal portion 154 overlaps only the extending portion 140c of the first electrode layer 140 and does not overlap the shielding portion 140b. Moreover, the touch signal portion 152 and the mask signal portion 154 are aligned with the reference line R, for example. In other words, the length L1 of the edge of the pin bonding region 124 adjacent to the edge of the substrate 110 to the edge of the substrate 110 is substantially the same as the length L2 of the edge of the connection pad 148 adjacent to the edge of the substrate 110 to the edge of the substrate 110, and thus the touch The length of the signal portion 152 and the masking signal portion 154 are the same in the touch panel 100a. When the touch signal portion 152 and the masking signal portion 154 are pulled, the touch signal portion 152 and the masking signal portion 154 can be subjected to an average force. The phenomenon that the one end is detached due to uneven force is less likely to occur, and thus the touch panel 100a can have a better electrical connection quality.

On the other hand, in order to clearly express the three-dimensional arrangement relationship between the flexible printed circuit board 150 and each film layer, reference can be made to FIGS. 5A and 5B. FIG. 5A is a schematic diagram of a three-dimensional explosion of the touch panel 100a. FIG. 5B is a schematic side view showing the assembled touch panel 100a of FIG. 5A. The shape and size of the film layers illustrated in Figures 5A and 5B are merely illustrative and are not intended to limit the invention.

Referring to FIG. 5A and FIG. 5B , the touch sensing component 120 is substantially a single-layer structure, for example, a signal conductor 122 that is electrically connected to the touch sensing component 120 and is formed by a single transparent electrode. Each of FIG. 1A is disposed on the substrate 110. Specifically, the touch sensing component 120 can be electrically connected to the touch signal portion 152 of the flexible printed circuit board 150 through the signal wire 122, and the first electrode layer 140 can be The shielding signal portion 154 of the flexible printed circuit board 150 is electrically connected through the connection pad 148 (shown in FIG. 1A). As shown in FIG. 5B , the touch signal portion 152 and the mask signal portion 154 of the flexible printed circuit board 150 are electrically connected to the touch sensing element 120 and the first electrode layer 140 respectively located on different film layers.

FIG. 6A is a schematic exploded perspective view of a touch panel according to another embodiment of the invention. FIG. 6B is a schematic side view of the touch panel of FIG. 6A after assembly. FIG. 6C is a top view of the touch panel of FIG. 6A. Referring to FIG. 6A, FIG. 6B and FIG. 6C, the touch panel 100b of the present embodiment is similar to the touch panel 100a of FIG. 5A, except that the touch sensing component 120 of the touch panel 100b is substantially double. Layer structure. Specifically, the touch sensing component 120 includes a first touch electrode layer 127 and a second touch electrode layer 128 . The first touch electrode layer 127 includes a substrate 127a and a first conductor layer 127b. The first conductor layer 127b includes, for example, a plurality of sensing strings and a plurality of signal wires. The second touch electrode layer 128 includes a substrate 128a and a second conductor layer 128b. The second conductor layer 128b includes, for example, a plurality of sensing strings and a plurality of signal wires.

The touch panel 100b further includes a plurality of adhesive layers 190a, 190b, and 190c. Specifically, the first touch electrode layer 127 is disposed on the substrate 110, the second touch electrode layer 128 is disposed on the first touch electrode layer 127, and the first electrode layer 140 is disposed on the second touch electrode layer 128. . An adhesive layer 190a is disposed between the first touch electrode layer 127 and the substrate 110. An adhesive layer 190b is disposed between the second touch electrode layer 128 and the first touch electrode layer 127. An adhesive layer 190c is disposed between the first electrode layer 140 and the second touch electrode layer 128.

In this embodiment, the first touch electrode layer 127 and the second touch electrode layer 128 respectively have respective pin bond regions 124, and the two pin bond regions 124 are located on different film layers. Correspondingly, the flexible printed circuit board 150 has two touch signal portions 152 to be electrically connected to the two pin bonding regions 124, respectively. As shown in the side view of FIG. 6B, the two touch signal portions 152 and the masking signal portion 154 of the flexible printed circuit board 150 and the first touch electrode layer 127 and the second touch electrode layer 128 are located on different film layers, respectively. And the first electrode layer 140 is electrically connected. As shown in FIG. 6C, one side of the two-pin land 124 adjacent to the edge 110s of the substrate 110 defines a first length L1 with the edge of the substrate 110, and one side of the connection pad 148 adjacent to the edge 110s of the substrate 110 is opposite to the substrate 110. The edge defines a second length L2 that is substantially the same as the second length L2.

In other embodiments, the stacked positions of the substrate 127a and the first conductive layer 127b of the first touch electrode layer 127 are exchanged, and the substrate 128a and the second conductive layer 128b of the second touch electrode layer 128 are stacked. The position of the structure can also be exchanged, so that the first conductor layer 127b and the second conductor layer 128b can both face the substrate 110, the first conductor layer 127b faces the substrate 110 and the second conductor layer 128b faces away from the substrate 110 and the first conductor layer 127b The substrate 110 and the second conductor layer 128b face the substrate 110 in three different embodiments. In addition, the stacked positions of the substrate 142 of the first electrode layer 140 and the light-transmitting conductive layer 144 may also be exchanged. It should be noted that when the first conductive layer 127b, the second conductive layer 128b, and the transparent conductive layer 144 are facing the substrate 110, the touch signal portion 152 and the masking signal portion 154 of the flexible printed circuit board 150 are required. The first conductor layer 127b, the second conductor layer 128b, and the light-transmitting conductive layer 144 are electrically connected correspondingly Pick up.

FIG. 7A is a schematic exploded perspective view of a touch panel according to another embodiment of the present invention. FIG. 7B is a schematic side view of the touch panel of FIG. 7A after assembly. Referring to FIG. 7A and FIG. 7B, the touch panel 100c of the present embodiment is similar to the touch panel 100b of FIG. 6A except that the first touch electrode layer 127 of the touch sensing component 120 of the touch panel 100c is different. Only the first conductor layer 127b is included, and the first conductor layer 127b is directly formed on the substrate 110.

In summary, since the touch signal portion and the masking signal portion of the present invention have the same length, the touch signal portion and the masking signal portion of the flexible printed circuit board are electrically connected to the pin bonding portion and the connection pad. After that, it is difficult to cause poor quality due to uneven force caused by the flexible printed circuit board being pulled, so the touch panel of the present invention can have good electrical connection quality.

100a‧‧‧ touch panel

110‧‧‧Substrate

110s‧‧‧ edge

102‧‧‧ display area

104‧‧‧The surrounding area

120‧‧‧Touch sensing components

122‧‧‧Signal wire

124‧‧‧ pin joint area

126‧‧‧ Conductive ring

124a‧‧‧ first side

124b‧‧‧ second side

140‧‧‧First electrode layer

140a‧‧‧Snowy area

140b‧‧‧Shading Department

140c‧‧‧Extension

146‧‧‧ Conductive ring

148‧‧‧Connecting mat

150‧‧‧Flexible printed circuit board

152‧‧‧Touch Signal Department

154‧‧‧Shielding Signal Department

L1‧‧‧ first length

L2‧‧‧ second length

M‧‧‧ area

R‧‧‧ reference line

Claims (9)

A touch panel includes: a substrate having a display area and a peripheral area, wherein the peripheral area is adjacent to the display area; a touch sensing component is disposed on the substrate and at least in the display area; the plurality of signals The wire is electrically connected to the touch sensing component and defines a pin bonding region in the peripheral region; a first insulating layer covers the touch sensing component; and a first electrode layer is disposed on the first The insulating layer covers the display area and at least a portion of the peripheral area, and includes: a substrate; a light-transmissive conductive layer disposed on the substrate; and a connection pad disposed on the light-transmissive conductive layer; A flexible printed circuit board includes a touch signal portion and a mask signal portion electrically connected to the signal wires and the connection pads respectively in the pin bonding region, wherein the pin bonding region is adjacent to the substrate One side of the edge defines a first length with the edge of the substrate, and an edge of the connection pad adjacent to the edge of the substrate defines a second length with the edge of the substrate, the first length being substantially opposite the second length . The touch panel of claim 1, further comprising a light shielding layer disposed on the substrate and located in the peripheral region, wherein the signal wires are disposed on the light shielding layer. The touch panel of claim 1, further comprising a conductive And the light-transmissive conductive layer is a plurality of blocks disposed on the substrate and the light-transmissive conductive layer and electrically connected to the connection pad. The touch panel of claim 1, further comprising a plurality of conductive rings, wherein the substrate and the transparent conductive layer are a plurality of symmetrical blocks, and the conductive rings are respectively disposed on the transparent conductive The layer is electrically connected to the connection pad. The touch panel of claim 1, wherein the first electrode layer surrounds at least two adjacent sides of the lead bonding region. The touch panel of claim 1, wherein the first electrode layer covers the signal wires, and an edge of the first electrode layer is at least 0.3 mm or more from an edge of the substrate. The touch panel of claim 2, further comprising a second electrode layer and a second insulating layer, wherein the second electrode layer is disposed on the light shielding layer and located in the peripheral region, the second insulation The layer covers the second electrode layer, and the signal wires are disposed on the second insulating layer above the second electrode layer. The touch panel of claim 1, wherein the touch sensing element and the first electrode layer are located in different film layers. The touch panel of claim 1, wherein the signal wires further comprise a grounding wire disposed at an outermost periphery of the signal wires.