TWI612453B - Touch panel - Google Patents

Abstract

A touch panel includes a substrate, a bridge electrode, a first conductive pattern, a first insulation pattern, a sensing electrode, and a second sensing electrode in series. The bridge electrode is disposed between the two first conductive patterns in the second direction. The first insulation patterns are respectively disposed on the bridge electrodes and partially cover the first conductive pattern. The bridge electrodes are respectively electrically connected to two adjacent sensing electrodes, and the sensing electrodes and the bridge electrodes form a first series of sensing electrodes extending along the first direction. The second sensing electrode series is arranged along the second direction, wherein the second sensing electrode series includes a bridge portion and a sensing portion, and the bridge portion overlaps and is electrically connected to two adjacent first conductive patterns in a direction perpendicular to the substrate. , And the sensing portions are respectively disposed between the bridge portions adjacent to each other along the second direction and are electrically connected.

Description

Touch panel

The present invention relates to a touch panel, and more particularly to a touch panel with a design that avoids peeling or disconnection of conductive materials in a series of sensing electrodes.

Due to the characteristics of human-computer interaction, the touch panel has gradually replaced the keyboard and is widely used in the input interface of electronic devices. In recent years, with the development of consumer electronics products, the use of touch panels and display panels to form touch display panels has increased, including mobile phones and satellites. Navigation system (GPS navigator system), tablet PC (laptop PC), and laptop PC (laptop PC).

During the process of manufacturing a touch display panel, the temperature of the manufacturing process needs to be controlled so that the temperature of the manufacturing process will not be too high, resulting in poor mechanical properties of the conductive materials (such as metals or transparent conductive materials) in the touch display panel. When the touch electrode structure has a large height difference, the conductive material is prone to peeling, cracking, or disconnection problems, which makes the chemical solution (such as an etchant or a photoresist stripper) in the subsequent process Will infiltrate from the location where the conductive material is damaged, which will affect the yield and reliability of the product.

One of the objectives of the present invention is to provide a touch panel to avoid the problems of peeling or disconnection of the conductive material of the sensing electrode series.

An embodiment of the present invention provides a touch panel including a substrate, a plurality of bridge electrodes, a plurality of first conductive patterns, a plurality of first insulation patterns, a plurality of sensing electrodes, and a plurality of second sensing electrode strings. The substrate has a sensing area and a peripheral area, wherein the peripheral area is disposed on at least one side of the sensing area. The bridge electrodes are disposed on a substrate in the sensing area, wherein each bridge electrode extends substantially along a first direction. The first conductive pattern is disposed on the substrate in the sensing area, wherein each bridge electrode is disposed between the two first conductive patterns in a second direction, and each of the bridge electrodes is electrically separated from each of the first conductive patterns. The first insulation patterns are respectively disposed on the bridge electrodes and partially cover the first conductive pattern. The sensing electrodes are disposed on a substrate in the sensing area, wherein each bridge electrode is electrically connected to two adjacent sensing electrodes, and the sensing electrode and the bridge electrode form a plurality of first sensing electrode strings extending along the first direction. The second sensing electrode series is arranged on the substrate in the sensing area along the second direction and is staggered with the first sensing electrode series. Each of the second sensing electrode series includes a plurality of bridge portions and a plurality of sensing portions. The bridge portions are respectively disposed on the first insulation pattern and are staggered with the corresponding bridge electrodes in a direction perpendicular to the substrate, and each bridge portion is in contact with two adjacent first conductive portions in a direction perpendicular to the substrate. The patterns overlap and are electrically connected, and each sensing portion is respectively disposed between the bridge portions adjacent in the second direction and is electrically connected.

Another embodiment of the present invention provides a touch panel including a substrate, a plurality of bridge electrodes, a plurality of first insulation patterns, a plurality of sensing electrodes, and a plurality of second sensing electrode strings. The substrate has a sensing area and a peripheral area, wherein the peripheral area is disposed on at least one side of the sensing area. The bridge electrodes are disposed on a substrate in the sensing area, wherein each bridge electrode extends substantially along a first direction. The first insulation pattern is disposed in the sensing area, and each of the first insulation patterns is disposed corresponding to each bridge electrode. The sensing electrodes are disposed on a substrate in the sensing area, wherein each bridge electrode is electrically connected to two adjacent sensing electrodes, and the sensing electrode and the bridge electrode form a plurality of first sensing electrode strings extending along the first direction. The second sensing electrode series is arranged on the substrate in the sensing area along a second direction and is staggered with the first sensing electrode series. Each of the second sensing electrode series includes a plurality of bridge portions and a plurality of sensing portions. The bridging portions are respectively disposed on the first insulation pattern and are staggered with the corresponding bridging electrodes in a direction perpendicular to the substrate, and each sensing portion is respectively disposed between the adjacent bridging portions in the second direction. They are electrically connected. Each sensing portion has an opening disposed adjacent to one end of the corresponding bridge portion, the second direction is different from the first direction, and the opening and the bridge electrode do not overlap in a direction perpendicular to the substrate.

In order to make a person skilled in the art who is familiar with the technical field of the present invention further understand the present invention, the preferred embodiments of the present invention are enumerated below, and in conjunction with the accompanying drawings, the constitutional content of the present invention and the desired effects are described in detail. .

Please refer to FIG. 1 and FIG. 2. FIG. 1 illustrates a schematic top view of a touch panel according to a first embodiment of the present invention. In order to highlight the features of the touch panel of this embodiment, FIG. 1 illustrates a touch panel. A partially enlarged schematic view of the control panel, and FIG. 2 is a schematic cross-sectional view of the touch panel shown along section lines AA ′ and B-B ′ of FIG. 1. As shown in FIGS. 1 and 2, the touch panel 1A of this embodiment includes a substrate 100, a plurality of first sensing electrode strings 10, a plurality of second sensing electrode strings 20, and a plurality of first conductive patterns 104. And a plurality of first insulation patterns 106. The substrate 100 has a sensing region 100S and a peripheral region 100P. The peripheral region 100P is disposed on at least one side of the sensing region 100S. The substrate 100 may be a flexible substrate or a rigid substrate such as a glass substrate, a plastic substrate, a quartz substrate, or the like. The first sensing electrode series 10 is disposed on the substrate 100 in the sensing area 100S and extends along the first direction D1. The first sensing electrode series 10 is formed by alternately arranging a plurality of bridge electrodes 102B and a plurality of sensing electrodes 102S along the first direction D1. Each bridge electrode 102B extends substantially along the first direction D1 and is electrically connected to two adjacent sensing electrodes 102S, respectively. The shape of the bridge electrode 102B in this embodiment is rectangular, and the shape of the sensing electrode 102S is diamond, but it is not limited thereto. The first conductive pattern 104 is disposed on the substrate 100 in the sensing area 100S, wherein each bridge electrode 102B is disposed between the two first conductive patterns 104 in the second direction D2. The bridge electrode 102B is electrically separated from the first conductive pattern 104, and the distance between the bridge electrode 102B and the first conductive pattern 104 is at least greater than 5 microns. The shape of the first conductive pattern 104 in this embodiment is rectangular, but is not limited thereto. The first insulating patterns 106 are respectively disposed on the bridge electrodes 102B, and partially cover the bridge electrodes 102B and the first conductive patterns 104. In addition, the first conductive patterns 104 are respectively disposed on the edges of the first insulating patterns 106. The first insulating pattern 106 may include an organic insulating layer such as an acrylic material or an inorganic insulating layer such as silicon oxide, silicon nitride, silicon oxynitride, or the like. In addition, for the convenience of explanation, the sensing electrodes 102S and the bridge electrodes 102B on the figure are not drawn according to the actual proportional relationship, and the related drawings in this article are also the same.

The second sensing electrode series 20 are disposed on the substrate 100 in the sensing area 100S along the second direction D2, and are staggered with the first sensing electrode series 10. Each of the second sensing electrode series 20 includes a plurality of bridge portions. 108B and a plurality of sensing portions 108S, and the second sensing electrode series 20 is formed by the bridge portions 108B and the sensing portions 108S alternately arranged along the second direction D2. The bridge portion 108B is substantially a rectangle extending along the second direction D2, and the sensing portion 108S is substantially a rhombus, but is not limited thereto. The bridge portions 108B are respectively disposed on the first insulating pattern 106 and are alternately arranged with the corresponding bridge electrodes 102B in the direction Z perpendicular to the projection on the substrate 100, and each bridge portion 108B is in a direction Z perpendicular to the projection on the substrate 100 and Two adjacent first conductive patterns 104 overlap and are electrically connected. Each of the first conductive patterns 104 in this embodiment has a first width W1 in the first direction D1, and each of the bridge portions 108B has a second width W2 in the first direction D1. The ratio range of the first width W1 to the second width W2 It is 50% to 150%. Each of the first insulation patterns 106 is disposed between one of the bridge electrodes 102B and one of the bridge portions 108B, so that the bridge electrodes 102B and the bridge portions 108B are electrically insulated. Each of the sensing portions 108S is respectively disposed between the bridge portions 108B adjacent to each other along the second direction D2 and is electrically connected. The bridge electrode 102B and the first conductive pattern 104 in this embodiment may be the same patterned conductive layer, and the sensing electrode 102S and the second sensing electrode series 20 may be another patterned conductive layer. The patterned conductive layer may include a transparent patterned conductive layer, and its material may include, for example, indium tin oxide, indium zinc oxide, or other transparent conductive materials. In addition, for convenience of explanation, the sensing portion 108S and the bridge portion 108B on the figure are not drawn according to the actual proportional relationship, and the related drawings in this article are also the same.

Please refer to FIG. 2. In this embodiment, the bridge electrode 102B and the first conductive pattern 104 are disposed between the substrate 100 and the second sensing electrode series 20. The first insulating pattern 106 is provided between the second sensing electrode series 20 and the bridge electrode 102B, between the second sensing electrode series 20 and the substrate 100, and between the second sensing electrode series 20 and the first conductive pattern 104. . In addition, a part of the first conductive pattern 104 is in direct contact with the second sensing electrode series 20, and another part of the first conductive pattern 104 is in direct contact with the first insulating pattern 106. In other words, the touch panel 1A has a structure in which the first conductive pattern 104 and the second sensing electrode series 20 are stacked outside the edge of the first insulating pattern 106, and the first insulating pattern 106 has a first insulating pattern inside the edge The structure 106 is sandwiched between the first conductive pattern 104 and the second sensing electrode series 20. In this case, since the first conductive pattern 104 and the second sensing electrode series 20 in this embodiment are both conductive materials, the first conductive pattern 104 and the second sensing electrode series 20 are stacked on the edge of the first insulating pattern 106. Can increase the structural strength of the sensing electrode in series at the edge transition of the first insulating pattern 106, and reduce the difference in material stress between different layers and the substrate, and the two-stage stacking can also improve the high and low breaks of the sensing electrode in series at the transition difference. Therefore, the problem of peeling of the conductive material between the insulating pattern and the substrate 100 or wrinkling of the conductive material at the edge of the insulating pattern can be avoided. However, compared to the conventional touch panel, the touch panel 1A of this embodiment can also reduce the occurrence of peeling or disconnection or wrinkling due to thermal expansion and contraction between the second sensing electrode series 20 and other different materials. Chance. Furthermore, even if the second sensing electrode series 20 located outside the edge of the first conductive pattern 104 has problems such as peeling or disconnection, the first conductive pattern 104 cushioned under the second sensing electrode series 20 can provide another conductivity. path.

In this embodiment, the touch panel 1A further includes a plurality of wires 110, a plurality of connection lines 112, and a plurality of second conductive patterns 114 disposed on the substrate 100 in the peripheral region 100P. The lead wires 110 are electrically connected to the first sensing electrode series 10 or the second sensing electrode series 20 through the connecting wires 112, respectively. The first figure is an example of the leads 110 electrically connected to the second sensing electrode series 20. The second conductive pattern 114 is disposed where the conductive line 110 and the connecting line 112 overlap each other, and the second sensing electrode series 20 is electrically connected to the conductive line 110 through the connecting line 112. The second conductive pattern 114 is disposed between the connection line 112 and the substrate 100, and a portion of the second conductive pattern 114 is disposed between the conductive line 110 and the substrate 100, and the connection line 112 partially covers one end of the conductive line 110 and completely covers the first portion. Two conductive patterns 114. In detail, the conductive wire 110 partially covers one side surface 114S of the second conductive pattern 114, and one end of the conductive wire 110 is located between the connection line 112 and the side surface 114S of the second conductive pattern 114. The connection line 112 and the second sensing electrode series 20 in this embodiment are the same patterned conductive layer, and the second conductive pattern 114 and the first conductive pattern 104 are the same patterned conductive layer, but not limited thereto. In addition, the wire 110 may include a metal or other conductive material. Since the second conductive pattern 114 and the connecting line 112 in this embodiment are both conductive materials, the structural strength of the connecting line 112 at the turning point of the conductive line 110 can be strengthened by the setting of the second conductive pattern 114, and the two-stage stacking reduces the connecting line. The height difference between the overlap of 112 and the lead wire 110, so that when the connection wire 112 is disposed on the lead wire 110, the problem of peeling or disconnection due to the difference in height can be avoided. However, in the touch panel 1A of this embodiment, even if a problem such as a disconnection occurs in the connection wire 112 of a portion that is in contact with the lead wire 110, the second conductive pattern 114 can provide another conductive path.

The touch panel of the present invention is not limited to the above embodiments. The following will sequentially introduce the touch panel of the modified embodiment of the present invention and other embodiments. In order to facilitate the comparison of the differences between the embodiments and simplify the description, the same symbols are used to mark the same elements in the following embodiments. , And mainly describes the differences between the embodiments, and will not repeat the repeated parts.

Please refer to FIG. 3, which is a schematic cross-sectional view of a peripheral area of a touch panel according to a first modified embodiment of the first embodiment of the present invention. As shown in FIG. 3, this modified embodiment is different from the first embodiment in that the touch panel 1B further includes a plurality of second insulation patterns 116 disposed on the substrate 100 of the peripheral region 100P, wherein the second insulation pattern 116 is located between the connection line 112 and the second conductive pattern 114, and part of the second insulation pattern 116 is located between the connection line 112 and the conductive line 110. In other words, the second insulation pattern 116 partially covers one end of the wire 110 and a part of the second conductive pattern 114 respectively. The second insulation pattern 116 may include an organic insulation layer such as an acrylic material or an inorganic insulation layer such as silicon oxide, silicon nitride, silicon oxynitride, or the like. Please refer to FIG. 4, which is a schematic cross-sectional view of a peripheral area of a touch panel according to a second modified embodiment of the first embodiment of the present invention. As shown in FIG. 4, this modified embodiment is different from the first embodiment in that the side surface 114S of the second conductive pattern 114 is disposed adjacent to one end of the wire 110 covered by the corresponding connection line 112, and the second conductive pattern 114 There is no contact with the lead 110 and there is a gap between the two. The touch panel 1C further includes a plurality of second insulation patterns 116 disposed on the substrate 100 in the peripheral area 100P, wherein the second insulation patterns 116 partially cover one end of the wire 110 and the side surface 114S of the second conductive pattern 114, and the second The insulation patterns 116 are respectively located between the connection line 112 and one end of the conductive line 110, between the connection line 112 and the substrate 100, and between the connection line 112 and the side surface 114S of the second conductive pattern 114. In addition, the first variation and the second variation of the first embodiment also relate to the method of electrically connecting the lead wire 110 to the first sensing electrode series 10 or the second sensing electrode series 20 through the connection line 112. It is applied to the following embodiments.

Please refer to FIG. 5 and FIG. 6. FIG. 5 illustrates a schematic top view of a touch panel according to a second embodiment of the present invention. In order to highlight the features of the touch panel of this embodiment, FIG. 5 illustrates touch A partially enlarged schematic diagram of the panel, and FIG. 6 is a schematic cross-sectional diagram of the touch panel shown along a section line CC ′ of FIG. 5. As shown in FIG. 5 and FIG. 6, this embodiment is different from the first embodiment in that each sensing portion 108S of the touch panel 2 has an opening 118, and the opening 118 is adjacent to and corresponding to the second direction D2. The first conductive pattern 104 is disposed on one side of the first conductive pattern 104 opposite to the first insulating pattern 106. In other words, the opening 118 is located in the sensing portion 108S adjacent to the edge of the first insulating pattern 106, and a part of the substrate 100 is exposed. In addition, each of the openings 118 in this embodiment has a first area, and each of the sensing portions 108S has a second area, and the ratio of the first area to the second area ranges from 5% to 15%. Since the second sensing electrode series 20 of this embodiment has an opening 118, and the opening 118 is disposed adjacent to the first insulating pattern 106, the material of the first insulating pattern 106 and the conductive material of the second sensing electrode series 20 are different. The change in process temperature causes different volume changes, so that the stress buildup caused near the first insulation pattern 106 is released, thereby avoiding problems such as peeling or disconnection of the material of the second sensing electrode series 20.

Please refer to FIG. 7 and FIG. 8. FIG. 7 shows a schematic top view of a touch panel according to a third embodiment of the present invention. In order to highlight the features of the touch panel of this embodiment, FIG. 7 shows touch A partially enlarged schematic view of the panel, and FIG. 8 is a schematic cross-sectional view of the touch panel shown along a section line DD ′ of FIG. 7. As shown in FIG. 7 and FIG. 8, this embodiment is different from the first embodiment in that the first insulation pattern 106 of the touch panel 3 is extended to a part of each of the sensing portions 108S in the second direction D2. Between the sensing portion 108S and the substrate 100, an opening 118 is provided on the corresponding first insulating pattern 106, and the opening 118 and the corresponding first conductive pattern 104 overlap in the direction Z perpendicular to the projection on the substrate 100, and the opening 118 It does not overlap with the bridge electrode 102B in the direction Z perpendicular to the substrate 100. In other words, the opening 118 is located in the sensing portion 108S adjacent to the edge of the first insulating pattern 106, and a part of the first insulating pattern 106 is exposed. In addition, each of the openings 118 in this embodiment has a first area, and each of the sensing portions 108S has a second area, and the ratio of the first area to the second area ranges from 5% to 15%. Since the second sensing electrode series 20 of this embodiment has an opening 118, and the opening 118 is disposed adjacent to the first insulating pattern 106, the material of the first insulating pattern 106 and the conductive material of the second sensing electrode series 20 are different. The change in process temperature causes different volume changes, so that the stress buildup caused near the first insulation pattern 106 is released, thereby avoiding problems such as peeling or disconnection of the material of the second sensing electrode series 20.

Please refer to FIG. 9 and FIG. 10. FIG. 9 shows a schematic top view of a touch panel according to a fourth embodiment of the present invention. In order to highlight the features of the touch panel of this embodiment, FIG. 9 shows a touch panel. A partially enlarged schematic view of the control panel, and FIG. 10 is a schematic cross-sectional view of the touch panel shown along section lines E-E ′ and F-F ′ of FIG. 9. As shown in FIGS. 9 and 10, this embodiment is different from the first embodiment in that the first conductive pattern 104 is not provided in the touch panel 4. In this embodiment, each of the sensing portions 108S has an opening 118, and the opening 118 is disposed adjacent to one end of the corresponding bridge portion 108B in the second direction D2. In other words, the opening 118 is located in the sensing portion 108S adjacent to the edge of the first insulating pattern 106, and a part of the substrate 100 is exposed. In addition, the opening 118 and the bridge electrode 102B do not overlap in the direction Z perpendicular to the projection on the substrate 100. In addition, each of the openings 118 in this embodiment has a first area, and each of the sensing portions 108S has a second area, and the ratio of the first area to the second area ranges from 5% to 15%. Since the second sensing electrode series 20 of this embodiment has an opening 118, and the opening 118 is disposed adjacent to the first insulating pattern 106, the material of the first insulating pattern 106 and the conductive material of the second sensing electrode series 20 are different. The change in process temperature causes different volume changes, so that the stress buildup caused near the first insulation pattern 106 is released, thereby avoiding problems such as peeling or disconnection of the material of the second sensing electrode series 20. The remaining features of the elements of the touch panel 4 in this embodiment may be the same as those in the first embodiment, and reference may be made to the first embodiment.

Please refer to FIG. 11 and FIG. 12. FIG. 11 shows a schematic top view of a touch panel according to a fifth embodiment of the present invention. In order to highlight the features of the touch panel of this embodiment, FIG. 11 shows touch A partially enlarged schematic diagram of the panel, and FIG. 12 is a schematic cross-sectional diagram of a touch panel shown along a section line G-G ′ of FIG. 11. As shown in FIG. 11 and FIG. 12, this embodiment is different from the fourth embodiment in that the first insulating pattern 106 of the touch panel 5 extends to a part of each of the sensing portions 108S in the second direction D2. And the substrate 100, wherein each of the sensing portions 108S has an opening 118 provided on the corresponding first insulating pattern 106, and the opening 118 and a portion of the first insulating pattern 106 overlap in a direction Z perpendicular to the substrate 100. In other words, the opening 118 is located in the sensing portion 108S adjacent to the edge of the first insulating pattern 106, and a part of the first insulating pattern 106 is exposed. In addition, each of the openings 118 in this embodiment has a first area, and each of the sensing portions 108S has a second area, and the ratio of the first area to the second area ranges from 5% to 15%. Since the second sensing electrode series 20 of this embodiment has an opening 118, and the opening 118 is disposed adjacent to the first insulating pattern 106, the material of the first insulating pattern 106 and the conductive material of the second sensing electrode series 20 are different. The change in process temperature causes different volume changes, so that the stress buildup caused near the first insulation pattern 106 is released, thereby avoiding problems such as peeling or disconnection of the material of the second sensing electrode series 20.

The distance between the sensing electrodes 102S or the distance between the sensing portions 108S mentioned in the present invention can be equal or unequal, respectively, and the maximum distance is, for example, 5 millimeters (mm).

The touch panel of the present invention may be a capacitive touch panel, which may be a self-capacitive touch panel or a mutual-capacitive touch panel, but is not limited thereto. In addition, the touch panel of the present invention can be further integrated with various display panels to form a touch display panel. The display panel may include a self-emitting display panel such as an organic electroluminescent display panel, a plasma display panel and a field emission display panel, or a non-self-emitting display panel such as a liquid crystal display panel, an electrowetting display panel, an electrophoretic display panel, and the like.

To sum up, the touch panel of the present invention is provided with a first conductive pattern on the edge of the first insulation pattern, and a second conductive pattern is provided on the edge of the wire for electrically connecting one end of the series of sensing electrodes to avoid crossing the first Problems such as peeling or disconnection of the second sensing electrode series of the insulation pattern and the connection lines across the conductive wires occur. Furthermore, even if the second sensing electrode string located on the first conductive pattern or the connection line of the part in contact with the lead wire is stripped or disconnected, the first conductive pattern and the second conductive pattern can provide another conductive path. . In addition, the touch panel of the present invention is provided with an opening in the sensing portion adjacent to the edge of the first insulating pattern, so that the stress accumulated near the first insulating pattern can be relieved, thereby avoiding the second sensing electrode string crossing the first insulating pattern. Problems such as peeling or disconnection occurred. The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the scope of patent application of the present invention shall fall within the scope of the present invention.

1A, 1B, 1C, 2, 3, 4, 5‧‧‧ touch panel

10‧‧‧The first sensing electrode series

20‧‧‧Second sensing electrode series

100‧‧‧ substrate

100S‧‧‧Sensing area

100P‧‧‧Peripheral area

102B‧‧‧Bridge electrode

102S‧‧‧Induction electrode

104‧‧‧The first conductive pattern

106‧‧‧First insulation pattern

106S‧‧‧Side

108B‧‧‧Bridge

108S‧‧‧Sensor

110‧‧‧Wire

112‧‧‧Connecting wire

114‧‧‧Second conductive pattern

114S‧‧‧Side

116‧‧‧Second insulation pattern

118‧‧‧ opening

D1‧‧‧ first direction

D2‧‧‧ Second direction

W1‧‧‧first width

W2‧‧‧Second width

Z‧‧‧ direction

FIG. 1 is a schematic top view of a touch panel according to a first embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the touch panel shown along the line A-A 'and the line B-B' of FIG. 1. FIG. FIG. 3 is a schematic cross-sectional view of a peripheral area of a touch panel according to a first modified embodiment of the first embodiment of the present invention. FIG. 4 is a schematic cross-sectional view of a peripheral area of a touch panel according to a second modified embodiment of the first embodiment of the present invention. FIG. 5 is a schematic top view of a touch panel according to a second embodiment of the present invention. FIG. 6 is a schematic cross-sectional view of the touch panel shown along the section line C-C 'of FIG. 5. FIG. FIG. 7 is a schematic top view of a touch panel according to a third embodiment of the present invention. FIG. 8 is a schematic cross-sectional view of the touch panel shown along the section line D-D 'of FIG. 7. FIG. 9 is a schematic top view of a touch panel according to a fourth embodiment of the present invention. FIG. 10 is a schematic cross-sectional view of the touch panel shown along the line E-E 'and the line F-F' of FIG. 9. FIG. FIG. 11 is a schematic top view of a touch panel according to a fifth embodiment of the present invention. FIG. 12 is a schematic cross-sectional view of a touch panel shown along a section line G-G 'of FIG. 11. FIG.

10‧‧‧The first sensing electrode series

20‧‧‧Second sensing electrode series

100‧‧‧ substrate

102B‧‧‧Bridge electrode

104‧‧‧The first conductive pattern

106‧‧‧First insulation pattern

108B‧‧‧Bridge

108S‧‧‧Sensor

110‧‧‧Wire

112‧‧‧Connecting wire

114‧‧‧Second conductive pattern

114S‧‧‧Side

Z‧‧‧ direction

Claims (13)

A touch panel includes: a substrate having a sensing area and a peripheral area, wherein the peripheral area is disposed on at least one side of the sensing area; a plurality of bridge electrodes are disposed on the substrate in the sensing area, Each of the bridge electrodes extends substantially along a first direction; a plurality of first conductive patterns are disposed on the substrate in the sensing area, and each of the bridge electrodes is disposed on two of the first directions in a second direction. Between a conductive pattern, and each of the bridge electrodes is electrically separated from each of the first conductive patterns; a plurality of first insulation patterns are respectively disposed on the bridge electrodes and partially cover the first conductive patterns; a plurality of A plurality of sensing electrodes are disposed on the substrate in the sensing area, wherein each of the bridge electrodes is electrically connected to two adjacent sensing electrodes, and the sensing electrodes and the bridge electrodes form a plurality of first electrodes. The sensing electrode series extends along the first direction; and a plurality of second sensing electrode series is arranged on the substrate in the sensing area along the second direction, and is staggered with the first sensing electrode series. Each of the second sensing electrode series includes a plurality of bridging portions and a plurality of sensing portions, and the bridging portions are respectively disposed on the first insulation patterns and are projected on the vertical projections of the corresponding bridge electrodes on The substrates are staggered in the direction of the substrate, and each of the bridging portions overlaps and is electrically connected with two adjacent first conductive patterns in a direction perpendicular to the direction of projection on the substrate. The bridges adjacent in two directions are electrically connected. The touch panel according to claim 1, wherein each of the first insulation patterns is respectively disposed between one of the bridge electrodes and one of the bridge portions, so that the bridge electrodes and the bridge portions are electrically connected. Sexual insulation. The touch panel according to claim 1, wherein each of the first conductive patterns has a first width in the first direction, and each of the bridge portions has a second width in the first direction, and the first width The ratio to this second width ranges from 50% to 150%. The touch panel according to claim 1, wherein each of the sensing portions has at least one opening, and the opening is disposed adjacent to one side of the corresponding first conductive pattern in the second direction. The touch panel according to claim 4, wherein each of the openings has a first area, each of the sensing portions has a second area, and a ratio of the first area to the second area ranges from 5% to 15%. The touch panel according to claim 1, wherein each of the sensing portions is extended to a side of the corresponding first insulation pattern, each of the sensing portions has an opening provided on the corresponding first insulation pattern, and The opening overlaps the corresponding first conductive pattern in the direction of the vertical projection on the substrate. The touch panel according to claim 6, wherein each of the openings has a first area, each of the sensing portions has a second area, and a ratio of the first area to the second area ranges from 5% to 15%. The touch panel according to claim 1, further comprising a plurality of wires and a plurality of connecting wires disposed on the substrate in the peripheral area, wherein each of the wires passes through one of the connecting wires to communicate with the first One of the sensing electrodes in series or one of the second sensing electrodes in series is electrically connected, and each of the connecting wires partially covers one end of each of the wires. The touch panel according to claim 8, further comprising a plurality of second conductive patterns disposed on the substrate in the peripheral area, wherein each of the second conductive patterns is disposed between each of the connection lines and the substrate. The touch panel according to claim 9, wherein each of the wires partially covers one side of each of the second conductive patterns, and one end of each of the wires is located at each of the connecting lines and the side of each of the second conductive patterns. between. The touch panel according to claim 10, further comprising a plurality of second insulation patterns disposed on the substrate in the peripheral area, wherein each of the second insulation patterns is located on each of the connection lines and each of the second conductive patterns. Between, and between each of the connecting lines and each of the conductive lines, and each of the second insulation patterns partially covers the end of each of the conductive lines and each of the second conductive patterns. The touch panel according to claim 9, wherein one side of each of the second conductive patterns is disposed adjacent to one end of each of the wires covered by the corresponding each of the connection lines. The touch panel according to claim 12, further comprising a plurality of second insulation patterns disposed on the substrate in the peripheral area, wherein each of the second insulation patterns partially covers the end of each of the wires and each of the first and second insulation patterns respectively. The side of two conductive patterns, and each of the second insulation patterns is located between each of the connecting lines and the end of each of the wires, each of the connecting lines and the side of each of the second conductive patterns, and each of the connections Between the wire and the substrate.