TW201337700A - Touch panel - Google Patents

Abstract

A touch panel including a substrate and sensing units is provided. Each sensing unit includes an electrode line, first electrode patterns, second electrode patterns, and connecting lines. The electrode line extends along a second direction, and has first openings arranged along the second direction and respectively corresponded to first breaches. Each first breach connects the corresponding first opening to the exterior of the electrode line. The first electrode patterns are respectively disposed in the first openings, and each first electrode pattern includes a second opening and a second breach connecting the second opening to the exterior of the first electrode pattern. The second electrode patterns are respectively disposed in the second openings and respectively connected to the electrode line through the second breach. The connecting lines are disposed on at least one side of the electrode line and connected to the corresponding first electrode patterns through the first breach.

Description

Touch panel

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

In recent years, with the rapid development and application of information technology, wireless mobile communication and information appliances, many information products have been input devices such as traditional keyboards or mice for the purpose of being more convenient, lighter and more humanized. , changed to use a touch panel (Touch Panel) as an input device.

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.

The capacitive touch panel constitutes a sensing array by a plurality of linear electrodes interdigitated to achieve surface sensing. When the user touches the touch panel with a finger, the touch panel determines the position of the finger contact according to the change in capacitance on the sensing array. The sensing sensitivity of the capacitive touch panel and the coupling capacitance between the electrode and the electrode are related to each other. Therefore, how to improve the coupling capacitance and provide a good touch quality for the user is a subject worthy of further discussion.

The invention provides a touch panel with good touch quality.

The invention provides a touch panel comprising a substrate and a plurality of sensing units. The substrate has a surface, and the plurality of sensing units are arranged side by side on the surface in a first direction. Each sensing unit includes an electrode line, a plurality of first electrode patterns, a plurality of second electrode patterns, and a plurality of connecting lines. The electrode line extends in a second direction, and the first direction intersects the second direction. The electrode wire has a plurality of first openings arranged in the second direction and a corresponding plurality of first notches, each of the first notches connecting the corresponding first opening and the outer side of the electrode line. a plurality of first electrode patterns respectively disposed in the first opening and insulated from the electrode lines, each of the first electrode patterns having a second opening and a second opening connecting the second opening and the second electrode pattern gap. The plurality of second electrode patterns are respectively disposed in the second opening and insulated from the first electrode pattern, and the second electrode patterns are respectively connected to the electrode lines via the second notch. A plurality of connecting lines are disposed on at least one side of the electrode lines and extend in the second direction, and the connecting lines are connected to the corresponding first electrode patterns via the first notches.

In an embodiment of the invention, the first electrode pattern is annular.

In an embodiment of the invention, the sensing unit further includes a plurality of first pseudo-patterns respectively disposed in the first openings, and each of the first pseudo-patterns is located between the electrode lines and the first electrode patterns.

In an embodiment of the invention, the first pseudo pattern is annular.

In an embodiment of the invention, the sensing unit further includes a plurality of second pseudo-patterns respectively disposed in the second opening, and each of the second pseudo-pattern bits Between the corresponding first electrode pattern and the second electrode pattern.

In an embodiment of the invention, the second pseudo pattern is annular.

In an embodiment of the present invention, the first notch of a first portion of each of the sensing units is located on a first side of the electrode line, and the first notch of a second portion of each sensing unit is located at one of the electrode lines. a second side, the first side is opposite to the second side, and a connecting line of a first portion of each sensing unit is located on the first side, and is connected to the first electrode pattern of the corresponding first portion via the first notch of the first portion, A connecting line of a second portion of each sensing unit is located on the second side, and is connected to the first electrode pattern of the corresponding second portion via the first notch of the second portion.

In an embodiment of the invention, the touch panel further includes a plurality of first pads and a plurality of second pads. A plurality of first pads are located on a surface of the substrate, and adjacent to one end of the substrate, each of the first pads is connected to a corresponding electrode line. A plurality of second pads are located on a surface of the substrate, and adjacent to the aforementioned one end of the substrate, each of the second pads is connected to a corresponding connecting line.

In an embodiment of the invention, in the touch panel, each two adjacent sensing units are mirrored along an axis of symmetry parallel to the second direction, and the connecting lines of the two adjacent sensing units share the same Group second pads.

In an embodiment of the invention, the first pad and the second pad are arranged in the first direction.

In an embodiment of the present invention, the touch panel further includes a plurality of first ground lines disposed on a surface of the substrate and extending in the second direction, and each of the two adjacent sensing units has a strip. The first ground wire.

In an embodiment of the invention, the touch panel further includes a plurality of The first ground pad is located on the surface of the substrate, and adjacent to the aforementioned one end of the substrate, each of the first ground pads is connected to the corresponding first ground line and the second ground line.

In an embodiment of the invention, the sensing unit further includes a second ground line disposed on the surface of the substrate and extending in the second direction, the second ground line being located on the electrode line and the adjacent connecting line thereof. between.

In an embodiment of the invention, the touch panel further includes a plurality of second ground pads on the surface of the substrate, and adjacent to the one end of the substrate, each of the second ground pads is connected to a corresponding second ground line.

In an embodiment of the invention, each of the two adjacent sensing units is mirrored along an axis of symmetry parallel to the second direction, and the connecting lines of the two adjacent sensing units share the same group of second pads. And the second grounding wires of the two adjacent sensing units share the same second grounding pad.

In an embodiment of the invention, the first pad, the second pad and the second ground pad are arranged in a first direction, and each of the second ground pads is located on the corresponding first pad and the first pad Between adjacent second pads.

In an embodiment of the invention, the touch panel further includes a plurality of third ground lines disposed on the surface of the substrate and extending in the second direction, respectively, between each of the two sensing units that are mirror images of each other. Has a third ground wire.

In an embodiment of the invention, the touch panel further includes a plurality of third ground pads on the surface of the substrate, and adjacent to the one end of the substrate, each third ground pad is connected to a corresponding third ground line.

In an embodiment of the invention, the touch panel further includes a plurality of fourth ground lines disposed on the surface of the substrate and respectively in the second direction Extending, any two sensing units that are mirrored to each other have a fourth ground line between them and another two sensing units that are mirrored.

In an embodiment of the invention, the touch panel further includes a plurality of fourth ground pads on the surface of the substrate, and adjacent to the one end of the substrate, each fourth ground pad is connected to a corresponding fourth ground line.

In the sensing unit of the touch panel of the present invention, the first electrode pattern is disposed in the first opening of the electrode line, and the second electrode pattern is disposed in the second opening of the first electrode pattern. The coupling capacitance between the electrode and the electrode is increased by the configuration to improve the sensing sensitivity of the touch panel and provide a good touch quality for the user of the touch panel.

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

1 is a schematic diagram of a touch panel in accordance with an embodiment of the present invention. The touch panel 100 includes a substrate 110 and a plurality of sensing units 120. The substrate 110 has a surface 110a, and the plurality of sensing units 120 are arranged side by side on the surface 110a along a first direction D1. Each sensing unit 120 includes an electrode line 121 , a plurality of first electrode patterns 122 , a plurality of second electrode patterns 123 , and a plurality of connecting lines 124 . The electrode line 121 extends in a second direction D2, and the first direction D1 intersects the second direction D2. In this embodiment, the touch panel 100 includes three sensing units 120 as an example, but is not intended to limit the present invention. The designer can appropriately set the number of sensing units 120 according to the actual application. Adjustment.

As shown in FIG. 1 , the electrode line 121 has a plurality of first openings 121 a arranged in the second direction D2 and a corresponding plurality of first notches 121 b , and each of the first notches 121 b is connected to the corresponding first opening 121 a and The outer side of the electrode line 121. The plurality of first electrode patterns 122 are respectively disposed in the first opening 121a and insulated from the electrode lines 121. Each of the first electrode patterns 122 has a second opening 122a and a second gap 122b connecting the second opening 122a and the outside of the first electrode pattern 122. The plurality of second electrode patterns 123 are respectively disposed in the second opening 122a and insulated from the first electrode pattern 122, and the second electrode patterns 123 are respectively connected to the electrode lines 121 via the second notches 122b. A plurality of connecting lines 124 are disposed on the first side 121c of the electrode lines 121 and extend in the second direction D2. The connecting lines 124 are connected to the corresponding first electrode patterns 122 via the first notches 121b.

In this embodiment, the first electrode pattern 122 is disposed on the corresponding first opening 121a of the electrode line 121, and the coupling capacitance between the first electrode pattern 122 and the electrode line 121 can be increased. Similarly, the second electrode pattern 123 is disposed on the corresponding second opening 122a of the first electrode pattern 122, and the coupling capacitance between the second electrode pattern 123 and the first electrode pattern 122 can be increased. When the coupling capacitance between the electrodes in the touch panel 100 is increased, the sensing sensitivity of the touch panel 100 can be improved. In this embodiment, the first electrode pattern 122 is annular, and the ring includes a second notch 122b, so that the second electrode pattern 123 located in the ring can be connected to the electrode line 121 via the second notch 122b. The annular design of the first electrode pattern 122 increases the coverage of the second electrode pattern 123, and further increases the coupling capacitance between the first electrode pattern 122 and the second electrode pattern 123.

In this embodiment, each sensing unit 120 further includes a plurality of first pseudo patterns 125 and a plurality of second quasi patterns 126 . The first dummy patterns 125 are respectively disposed in the first notches 121b and located between the electrode lines 121 and the first electrode patterns 122. The second dummy patterns 126 are respectively disposed in the second openings 122a, and each of the second dummy patterns 126 is located between the corresponding first electrode patterns 122 and the second electrode patterns 123. As shown in FIG. 1 , each of the first pseudo patterns 125 is annular, and each of the second pseudo patterns 126 is annular.

When the spacing between the electrode lines 121 and the first electrode patterns 122 is too small, the coupling capacitance generated by the electrode lines 121 and the first electrode patterns 122 may be too large, thereby affecting the sensitivity of the touch operation. Therefore, an appropriate spacing is maintained between the electrode lines 121 and the first electrode patterns 122, but this spacing may affect the uniformity of light transmission of the touch panel 100. The first pseudo pattern 125 located between the electrode line 121 and the first electrode pattern 122 can improve the problem of poor uniformity of light transmission of the touch panel 100. When the spacing between the first electrode pattern 122 and the second electrode pattern 123 is too small, the coupling capacitance generated between the first electrode pattern 122 and the second electrode pattern 123 may be too large, thereby affecting the sensitivity of the touch operation. Therefore, an appropriate spacing is maintained between the first electrode pattern 122 and the second electrode pattern 123. Similarly, the second pseudo pattern 126 located between the first electrode pattern 122 and the second electrode pattern 123 can improve the problem that the light transmittance uniformity of the touch panel 100 is poor due to the pitch.

Referring to FIG. 1 , in the embodiment, the touch panel 100 includes a plurality of first pads 130 and a plurality of second pads 140 on the surface 110 a of the substrate 110 and adjacent to the first end 119 of the substrate 110 . Each of the first pads 130 is connected to the corresponding electrode line 121, and each of the second pads 140 is connected to the corresponding connection. Wiring 124. As shown in FIG. 1 , the first pads 130 and the second pads 140 are arranged along the first direction D1 . In addition, the touch panel 100 includes a plurality of first ground lines 150 disposed on the surface 110a of the substrate 110 and extending in the second direction D2, respectively. In this embodiment, any two adjacent sensing units 120 have a first ground line 150 therebetween, so that signal interference between the two adjacent sensing units 120 can be avoided. In addition, in the embodiment, the touch panel 100 further includes a plurality of first ground pads 170 on the surface 110a of the substrate 110, and adjacent to the first end 119 of the substrate 110, the first ground pads 170 are connected to the corresponding first A ground line 150.

In this embodiment, each sensing unit 120 further includes a second ground line 160 disposed on the surface 110a of the substrate 110 and extending along the second direction D2. The second ground line 160 is located adjacent to the electrode line 121. Between the wires 124, signal interference between the electrode wires 121 and the adjacent wires 124 can be avoided. In this embodiment, the touch panel 100 further includes a plurality of second ground pads 180 on the surface 110a of the substrate 110, and adjacent to the first end 119 of the substrate 110, each of the second ground pads 180 is connected to a corresponding second ground. Line 160.

In this embodiment, the first electrode pattern 122 is disposed in the first opening 121a of the electrode line 121 and the second electrode pattern 123 is disposed in the second opening 122a of the first electrode pattern 122, so that each electrode can be lifted. The coupling capacitance between them increases the sensitivity of the sensing. Furthermore, the first pseudo pattern 125 and the second pseudo pattern 126 can improve the problem that the light transmittance uniformity of the touch panel 100 is poor. In addition, the first ground line 150 can avoid signal interference between the sensing units 120, and the second ground line 160 can avoid the electrode line 121 and adjacent connections. Signal interference occurs between the wires 124. Accordingly, the touch panel 100 of the embodiment can provide good touch quality for the user.

In the embodiment, the first electrode pattern 122, the first pseudo pattern 125, and the second pseudo pattern 126 are annular. In one sensing unit 120, the corresponding first electrode pattern 122, second electrode pattern 123, first quasi-pattern 125, and second quasi-pattern 126 are arranged in a manner similar to a ring around another ring, and The outer order is the second electrode pattern 123, the second pseudo pattern 126, the first electrode pattern 122, and the first pseudo pattern 125. As shown in FIG. 1, a plurality of such a ring is arranged around the ring in the second direction D2 and is located at the center of the electrode line 121. In addition to the coupling capacitance between the electrodes, the configuration of the touch panel 100 allows the touch panel 100 to output a more uniform signal when the user performs a touch operation. In addition, arranging the aforementioned components in the center of the electrode lines 121 also contributes to improving the touch accuracy and linearity performance of the touch panel 100. In addition, in the embodiment, the first notch 121b and the second electrode pattern 123 are hexagonal, and the second electrode pattern 123 is a corresponding ring shape, but the invention is not limited thereto. The first notch 121b and the second electrode pattern 123 may be other polygons, and the second electrode pattern 123 is a ring of a corresponding polygon.

It should be noted that, in this embodiment, the first notch 121b of each sensing unit 120 is located at the first side 121c of the electrode line 121, and the connecting line 124 is also located at the first side 121c of the electrode line 121. However, the invention is not limited thereto. In other embodiments, the first notch 121b of each sensing unit 120 may also be partially located on the first side 121c, and the other portion is located in the opposite A second side 121d of one side 121c. In the foregoing configuration, a part of the connecting line 124 is disposed on the first side 121c, and another part of the connecting line 124 is disposed on the second side 121d to effectively utilize the layout space on the substrate 110.

2 is a schematic diagram of a touch panel in accordance with another embodiment of the present invention. The touch panel 200 includes a substrate 210 and a plurality of sensing units 220. The substrate 210 has a surface 210a, and the plurality of sensing units 220 are arranged side by side on the surface 210a along a first direction D1. Each sensing unit 220 includes an electrode line 221 , a plurality of first electrode patterns 222 , a plurality of second electrode patterns 223 , a plurality of connecting lines 224 , a plurality of first quasi-patterns 225 , and a plurality of second quasi-patterns 226 . The electrode line 221 extends in a second direction D2, and the first direction D1 intersects the second direction D2. In this embodiment, the touch panel 200 includes four sensing units 220 as an example, but is not intended to limit the present invention. The designer can appropriately set the number of sensing units 220 according to the actual application. Adjustment.

This embodiment is substantially similar to the embodiment of FIG. 1. The main difference between the two is that each of the sensing units 220 has a portion of the first notch 221b and a corresponding portion of the connecting line 224 located at one of the electrode lines 221. On the side, the other portion of the first notch 221b and its corresponding other portion of the connecting line 224 are located on the other side of the electrode line 221. In addition, in this embodiment, the connection manner of the connection line 224 and the second pad 240, the number and arrangement of the ground lines, and the connection manner of the ground line and the ground pad can be adjusted to simplify the circuit layout. The layout space required at the first end 219 of the substrate 210 is saved. The following description omits the description of the same portions of the present embodiment as those of the embodiment of Fig. 1. For a description of the omitted part, please refer to The foregoing embodiments are not repeated here.

Referring to FIG. 2 , the first notch 221 b of a first portion 220 a of each sensing unit 220 is located on the first side 221 c of the electrode line 221 , and the first notch 221 b of the second portion 220 b of each sensing unit 220 is located on the electrode line 221 . The second side 221d is opposite to the first side 221d. The connection line 224a of the first portion 220a of each sensing unit 220 is located on the first side 221c, and is connected to the first electrode pattern 222 of the corresponding first portion 220a via the first notch 221b of the first portion 220a. The connection line 224b of the second portion 220b of each sensing unit 220 is located on the second side 221d, and is connected to the first electrode pattern 222 of the corresponding second portion 220b via the first notch 221b of the second portion 220b.

In this embodiment, the touch panel 200 includes a plurality of first pads 230 and a plurality of second pads 240. The first pad 230 and the second pad 240 are both located on the surface 210a of the substrate 210 and adjacent to the first end 219 of the substrate 210. Each of the first pads 230 is connected to the corresponding electrode line 221, and each of the second pads 240 is connected to the corresponding connecting line 224. In addition, each sensing unit 220 further includes two second ground lines 260 disposed on the surface 210a of the substrate 210 and extending along the second direction D2. In the same sensing unit 220, two second ground lines 260 are respectively disposed on the first side 221c and the second side 221d of the electrode line 221 to avoid signal interference between the electrode line 221 and the connecting lines 224 on both sides. In this embodiment, the touch panel 200 further includes a plurality of second ground pads 280 on the surface 210a of the substrate 210, and adjacent to the first end 219 of the substrate 210, each second ground pad 280 is connected to a corresponding second ground. Line 260.

In this embodiment, each of the two adjacent sensing units 220 is mirrored along an axis of symmetry A1 parallel to the second direction D2, and the connecting lines 224 of the two adjacent sensing units 220 share the same group of second pads. 240, and the second grounding wires 260 of the two adjacent sensing units 220 share the same second grounding pad 280. The advantage of sharing the second pad 240 is that the same pad output signal is used, and the second touch pad 280 is shared, and the touch panel 200 can effectively reduce the number of pads. When the number of pads of the touch panel 200 is reduced, the winding area of the pad area on the touch panel 200 is also reduced. In addition, when the touch panel 200 includes a flexible circuit board (not shown) to transmit signals on the pads, the winding area on the flexible circuit board is also reduced. As shown in FIG. 2, the first pad 230, the second pad 240, and the second ground pad 280 are arranged along the first direction D1, and each of the second ground pads 280 is located at the corresponding first pad 230 and A pad 230 is adjacent between the adjacent pads 240. In this way, signal interference between the first pad 230 and the second pad 240 can be avoided.

Referring to FIG. 2 , in the embodiment, the touch panel 200 further includes a plurality of third ground lines 290 a disposed on the surface 210 a of the substrate 210 and extending in the second direction D2 . Each of the two mutually mirrored sensing units 220 has a third ground line 290a. The third ground line 290a can avoid signal interference between the two sensing units 220 that are mirror images of each other. In addition, the touch panel 200 further includes a plurality of third ground pads 290c on the surface 210a of the substrate 210, and adjacent to the first end 219 of the substrate 210, each of the third ground pads 290c is connected to a corresponding third ground line 290a.

Referring to FIG. 2, in the embodiment, the touch panel 200 further includes The fourth grounding wire 290b is disposed on the surface 210a of the substrate 210 and extends in the second direction D2, respectively, and two sets of two sensing units 220 mirrored to each other and two adjacent mirror sets of the two There is a fourth ground line 290b between the sensing units 220. The fourth ground pad 290d can avoid signal interference between two sets of sensing units 220 that are mirrored to each other and two sets of sensing units 220 that are mirror images of each other. In addition, the touch panel 200 further includes a plurality of fourth ground pads 290d on the surface 210a of the substrate 210, and adjacent to the first end 219 of the substrate 210, each fourth ground pad 290d is connected to a corresponding fourth ground line 290b.

In this embodiment, the sensing unit 220 can be divided into a first notch 221b in a first portion 220a of the first side 221c and a first portion 221b in a second portion 220b of the second side 221d, and each two adjacent The sensing unit 220 is in a mirrored setting. In the foregoing configuration, the connection lines 224 of the two adjacent sensing units 220 can share the same group of second pads 240, and the second ground lines 260 of the adjacent two sensing units 220 can share the same The two ground pads 280, as such, the number of pads of the touch panel 200 is reduced. In addition, the arrangement of the second ground line 260, the third ground line 290a, and the fourth ground line 290b avoids signal interference between the electrode line 221 and the connection line 224, or signal interference between the electrode line 221 and the electrode line 221 . With the design of the electrode line 221, the first electrode pattern 222, the second electrode pattern 223, the first quasi-pattern 225, and the second quasi-pattern 226, the present embodiment effectively improves the touch quality of the touch panel 200.

FIG. 3 is a schematic diagram of a touch panel according to still another embodiment of the present invention. The embodiment of Figure 3 is substantially similar to the embodiment of Figure 2, both The difference is mainly that the plurality of first notches 321b of the adjacent two electrode lines 321 are opposed to each other. Referring to FIG. 3, in the embodiment, two adjacent sensing units 320A, 320B are mirrored along an axis of symmetry A2 parallel to the second direction D2, and the plurality of first notches 321b of the sensing unit 320A are The first side 321c of the first electrode line 321 is located, and the plurality of first notches 321b of the sensing unit 320B are located at the second side 321d of the first electrode line 321.

In summary, in the sensing unit of the touch panel of the present invention, the first electrode pattern is disposed in the first opening of the electrode line, and the second electrode pattern is disposed in the second opening of the first electrode pattern. Therefore, the coupling capacitance between the electrode and the electrode is increased by the configuration to improve the sensing sensitivity of the touch panel and provide the user with good touch quality. Furthermore, the first pseudo pattern disposed between the electrode line and the first electrode pattern and the second pseudo pattern disposed between the first electrode pattern and the second electrode pattern may improve the uniformity of light transmittance of the touch panel. problem. In addition, the grounding wires are arranged to avoid signal interference between the electrode wires and the connecting wires, or to avoid signal interference between the electrode wires and the electrode wires. Accordingly, the touch panel of the present invention has good touch quality.

In addition, in each sensing unit, the plurality of first notches may all be located on the same side of the electrode line, or a part of the first notch is located on one side of the electrode line, and the other part of the first notch is located on the other side of the electrode line. One side, so the touch panel has good design flexibility. When the plurality of first notches are respectively located on different sides of the electrode lines, the adjacent sensing units may be mirrored, and the connecting lines of the two adjacent sensing units may share the same group of second pads, two adjacent The second grounding wire of the sensing unit can share the same second grounding pad, thereby reducing the connection The number of pads. In addition, in the foregoing symmetrical configuration, the connection manner of the connection line and the second pad, the number and arrangement of the ground lines, and the connection manner of the ground line and the ground pad can be adjusted to simplify the circuit layout and save on the substrate. The layout space required at the first end.

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.

100, 200, 300‧‧‧ touch panels

110, 210‧‧‧ substrate

110a, 210a‧‧‧ surface

119, 219‧‧‧ first end

120, 220, 320, 320A, 320B‧‧‧ Sensing unit

121, 221, 321‧‧ ‧ electrode lines

121a‧‧‧First opening

121b, 221b‧‧‧ first gap

121c, 221c, 321c‧‧‧ first side

121d, 221d, 321d‧‧‧ second side

122, 222‧‧‧ first electrode pattern

122a‧‧‧Second opening

122b‧‧‧second gap

123, 223‧‧‧ second electrode pattern

124, 224, 224a, 224b‧‧‧ connecting lines

125, 225‧‧‧ first pseudo-pattern

126, 226‧‧‧ second pseudo-pattern

130, 230‧‧‧ first mat

140, 240‧‧‧second pads

150‧‧‧First grounding wire

160, 260‧‧‧ second grounding wire

170‧‧‧First grounding pad

180, 280‧‧‧second grounding pad

220a‧‧‧Part 1

220b‧‧‧Part II

290a‧‧‧ third grounding wire

290b‧‧‧fourth grounding wire

290c‧‧‧ third grounding pad

290d‧‧‧fourth grounding pad

D1‧‧‧ first direction

D2‧‧‧ second direction

A1, A2‧‧‧ axis of symmetry

1 is a schematic diagram of a touch panel in accordance with an embodiment of the present invention.

2 is a schematic diagram of a touch panel in accordance with another embodiment of the present invention.

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

100‧‧‧ touch panel

110‧‧‧Substrate

110a‧‧‧ surface

119‧‧‧ first end

120‧‧‧Sensor unit

121‧‧‧Electrode lines

121a‧‧‧First opening

121b‧‧‧ first gap

121c‧‧‧ first side

121d‧‧‧ second side

122‧‧‧First electrode pattern

122a‧‧‧Second opening

122b‧‧‧second gap

123‧‧‧Second electrode pattern

124‧‧‧Connecting line

125‧‧‧ first pseudo pattern

126‧‧‧Second quasi-pattern

130‧‧‧First mat

140‧‧‧second mat

150‧‧‧First grounding wire

160‧‧‧Second grounding wire

170‧‧‧First grounding pad

180‧‧‧Second grounding pad

D1‧‧‧ first direction

D2‧‧‧ second direction

Claims (20)

A touch panel includes: a substrate having a surface; a plurality of sensing units arranged side by side along a first direction, each of the sensing units comprising: an electrode line extending along a second direction, The first direction intersects the second direction, the electrode line has a plurality of first openings arranged along the second direction and a corresponding plurality of first notches, each of the first notches connecting the corresponding first openings And a plurality of first electrode patterns respectively disposed in the first openings and insulated from the electrode lines, each of the first electrode patterns having a second opening and connecting the first a second opening and a second notch on the outer side of the first electrode pattern; a plurality of second electrode patterns respectively disposed in the second openings and insulated from the first electrode patterns, the second electrode patterns Connecting the electrode lines via the second notches; and a plurality of connecting lines disposed on at least one side of the electrode lines and extending along the second direction, the connecting lines being connected to the corresponding one via the first notches Some first electrode patterns. The touch panel of claim 1, wherein each of the first electrode patterns is annular. The touch panel of claim 1, wherein each of the sensing units further comprises: a plurality of first dummy patterns, respectively disposed on the touch panels The first dummy pattern is located between the electrode line and the first electrode pattern. The touch panel of claim 3, wherein each of the first pseudo-patterns is a ring shape. The touch panel of claim 1, wherein each of the sensing units further comprises: a plurality of second pseudo-patterns respectively disposed in the second openings, and each of the second pseudo-patterns is correspondingly Between the first electrode pattern and the second electrode pattern. The touch panel of claim 5, wherein each of the second pseudo patterns is annular. The touch panel of claim 1, wherein the first notches of a first portion of each of the sensing units are located on a first side of the electrode line, and a second portion of each of the sensing units The first gap is located on a second side of the electrode line, and the first side is opposite to the second side, and the connecting lines of a first portion of each sensing unit are located on the first side, and The first gaps of the first portion are connected to the first electrode patterns of the corresponding first portion, and the connecting lines of a second portion of each of the sensing units are located on the second side, and the second portion is The first notches are connected to the first electrode patterns of the corresponding second portion. The touch panel of claim 1, further comprising: a plurality of first pads on the surface of the substrate, and adjacent to one end of the substrate, each of the first pads connecting the corresponding electrode a line; and a plurality of second pads on the surface of the substrate and adjacent to the At the end of the substrate, each of the second pads is connected to the corresponding connecting line. The touch panel of claim 8, wherein each two adjacent sensing units are mirrored along an axis of symmetry parallel to the second direction, and the connections of the two adjacent sensing units are The lines share the same set of second pads. The touch panel of claim 8, wherein the first pads and the second pads are arranged along the first direction. The touch panel of claim 1, further comprising: a plurality of first ground lines disposed on the surface of the substrate and extending along the second direction respectively, any two adjacent sensing units There is a first ground line between them. The touch panel of claim 11, further comprising: a plurality of first ground pads on the surface of the substrate, and adjacent to the end of the substrate, each of the first ground pads is connected to the corresponding one The first ground wire. The touch panel of claim 8, wherein each of the sensing units further comprises: a second ground line disposed on the surface of the substrate and extending along the second direction, the second ground The line is located between the electrode line and the adjacent one of the connection lines. The touch panel of claim 13, further comprising: a plurality of second ground pads on the surface of the substrate, and adjacent to the end of the substrate, each of the second ground pads is connected to the corresponding one Second ground wire. The touch panel of claim 14, wherein each two adjacent sensing units are mirrored along an axis of symmetry parallel to the second direction, and the two adjacent sensing units are connected. The wires share the same set of second pads, and the second ground wires of the two adjacent sensing units share the same second ground pad. The touch panel of claim 15, wherein the first pads, the second pads, and the second ground pads are arranged along the first direction, and each of the second ground pads is located Correspondingly between the first pad and the second pad adjacent to the first pad. The touch panel of claim 15 further comprising: a plurality of third ground lines disposed on the surface of the substrate and extending along the second direction, each of the two mirror images being disposed There is a third ground line between the measuring units. The touch panel of claim 17, further comprising: a plurality of third ground pads on the surface of the substrate, and adjacent to the end of the substrate, each of the third ground pads is connected to the corresponding one Third ground line. The touch panel of claim 17, further comprising: a plurality of fourth ground lines disposed on the surface of the substrate and extending along the second direction, respectively The sensing unit has a fourth grounding line between the two sensing units disposed adjacent to another group of mirrors. The touch panel of claim 19, further comprising: a plurality of fourth ground pads on the surface of the substrate, and adjacent to the end of the substrate, each of the fourth ground pads is connected to the corresponding one The fourth grounding wire.