TWM481447U - Touch panel - Google Patents

Abstract

A touch panel including a base plate, a conductive mesh layer and a plurality of pads is provided. The base plate includes a touch area and a peripheral area sited at at least one side of periphery of the touch area. The conductive mesh layer is disposed on the base plate and includes a plurality of mesh patterns which are cut off partially to define at least a plurality of sensing elements in the touch area. Each sensing element consists of a part of the continuous mesh patterns and includes an electrode portion and a wire portion. The pad is disposed on the peripheral area, and the wire portions extend from the electrode portions to connect with the pads, respectively.

Description

Touch panel

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

The capacitive touch panel detects the touch position of a finger or a conductive object by a change in the capacitance value caused by the user touching the capacitive touch panel through a finger or a conductive object.

However, in the conventional touch panel structure, a conductive layer is mostly made of a transparent conductive material, wherein a part of the conductive layer serves as a sensing electrode and another portion serves as a trace for transmitting signals. Each sensing electrode needs to be connected to a trace to transmit the sensed signal to the driver circuit. When the touch panel has a high resolution requirement or a large number of sensing electrodes, the number of sensing electrodes and traces needs to be set more. At this time, a certain distance between adjacent sensing electrodes needs to be separated to set a large number of traces, thereby increasing the invalid sensing area, that is, the area where the sensing electrodes are not disposed. Therefore, the sensing linearity of the touch panel still has room for improvement.

The novel creation provides a touch panel with better sensing linearity.

The touch panel of the present invention comprises a substrate, a conductive mesh layer and a plurality of pads. The substrate includes a touch area and a peripheral area on at least one side of the periphery of the touch area. The conductive mesh layer is disposed on the substrate and includes a plurality of mesh patterns, and the mesh patterns are partially broken and at least a plurality of sensing units are defined in the touch area, wherein each of the sensing units is continuous A portion of the mesh pattern is formed and includes an electrode portion and a trace portion. The pads are disposed in a peripheral region of the substrate, wherein the trace portions extend from the electrode portions to be connected to the pads.

In an embodiment of the present invention, the grid patterns include a plurality of first sub-grids and a plurality of second sub-grids, wherein the electrode portions are respectively separated by at least a portion of the first sub-grids The wires are respectively connected by at least a part of the continuous second sub-grids.

In an embodiment of the present invention, the wire-traveling portions are respectively connected by at least a portion of each of the second sub-grids in the continuous second sub-grids.

In an embodiment of the present invention, the size of each of the first sub-grids is greater than or equal to the size of each of the second sub-grids.

In an embodiment of the present invention, at least one of the second sub-grids is disconnected to form a portion of one of the routing portions and a portion of the adjacent one of the routing portions.

In an embodiment of the present invention, the conductive mesh layer and the pads are formed of the same conductive layer.

In an embodiment of the present invention, each of the mesh patterns is surrounded by a plurality of side strips, and each of the trace portions is at least one side strip of each of the grid patterns in a portion of the continuous grid patterns. Connected, and at least a portion of the two adjacent strip portions are disconnected to form a plurality of gaps to electrically isolate the trace portions from each other.

In an embodiment of the novel creation, the gaps are distributed along a curved path.

In an embodiment of the present invention, each of the side strips has a length of from 15 micrometers to 300 micrometers.

In an embodiment of the present invention, each of the gaps described above is from 5 microns to 50 microns.

In an embodiment of the present invention, the conductive mesh layer further includes a plurality of non-actuating units formed by another portion of the mesh patterns, and each of the non-actuating units and the adjacent sensing units are disconnect.

In an embodiment of the present invention, the pads are located on the same side of the touch area.

In an embodiment of the present invention, the pads are located on opposite sides of the touch area.

In an embodiment of the present invention, the electrode portions include a plurality of first electrodes and a plurality of second electrodes, and the routing portions include a plurality of first traces and a plurality of second traces, the first The traces are respectively connected to the pads of the first electrodes and the portions, and the second traces are respectively connected to the second electrodes and the other portions of the Some pads.

In an embodiment of the present invention, the first electrode is a driving electrode, and the second electrode is a sensing electrode.

In an embodiment of the present invention, at least two of the second electrodes are disposed correspondingly to the respective first electrodes.

In an embodiment of the present invention, the first electrodes and the second electrodes are respectively comb-shaped.

In an embodiment of the present invention, the sensing units are grouped in pairs, and the widths of the two electrode portions of the two sensing units of each group change in opposite directions.

In an embodiment of the present invention, the substrate comprises a glass substrate, a plastic substrate, a glass-plastic composite substrate or a cover plate.

In an embodiment of the present invention, the substrate comprises a substrate of a display, and the substrate of the display comprises a color filter substrate, an array substrate or a package cover of an organic light emitting display.

In an embodiment of the present invention, a cover plate is further disposed, the cover plate is disposed facing the substrate, wherein the cover plate comprises a decorative layer, and the decorative layer is disposed corresponding to the peripheral region of the substrate.

Based on the above, the touch panel of the present invention forms a plurality of sensing units by partially breaking a plurality of mesh patterns of the conductive mesh layer. Since the grid pattern itself can be made of a material having good electrical conductivity such as metal or metal alloy, a single strip of these grid patterns can realize the function of signal transmission. Therefore, the trace portions of the sensing units can be closely arranged such that the spacing between the trace portions can be equal to the grid The spacing of the patterns greatly reduces the area of the ineffective sensing area, effectively improving the sensing linearity of the touch panel.

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

A1‧‧‧ touch area

A2‧‧‧ surrounding area

D‧‧‧ gap

100, 200, 300, 500‧‧‧ touch panels

110‧‧‧Substrate

120, 220, 320, 420, 720‧‧‧ conductive mesh layers

122, 222, 322, 422, 622‧‧‧ grid pattern

122a, 222a, 522a, 622a‧‧‧ side strips

124, 324‧‧‧ Sensing unit

126, 126', 226, 326, 526‧‧ ‧ electrode parts

128, 128’, 228, 328, 428, 528, 628‧‧‧

128a‧‧‧The first line

128b‧‧‧Second line

129‧‧‧Non-actuated unit

130, 130', 230, 330, 430‧‧‧ pads

326a‧‧‧first electrode

326b‧‧‧second electrode

328a‧‧‧First line

328b‧‧‧Second line

522b‧‧‧ first subgrid

522c‧‧‧Second subgrid

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

FIG. 1B is a partial schematic view of a touch panel according to another embodiment of the present invention.

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

3 is a partial schematic view of a touch panel in accordance with another embodiment of the present invention.

4 is a partial schematic view of a trace and a pad of a touch panel according to another embodiment of the present invention.

FIG. 5 is a partial schematic view of a touch panel in accordance with another embodiment of the present invention.

FIG. 6 is a schematic diagram of a trace portion of a touch panel according to another embodiment of the present invention.

FIG. 7 is a partial schematic view of a touch panel according to another embodiment of the present invention. Figure.

1A is a partial schematic view of a touch panel in accordance with an embodiment of the present invention. Referring to FIG. 1A , the touch panel 100 of the present embodiment may be a single-layer touch panel including a substrate 110 , a conductive mesh layer 120 , and a plurality of pads 130 . The substrate 110 includes a touch area A1 and a peripheral area A2 located on at least one side of the periphery of the touch area A1. The conductive mesh layer 120 is disposed on the substrate 110 and includes a plurality of mesh patterns 122, and the mesh patterns 122 are partially broken to define a plurality of independent sensing units 124 in the touch area A1. The measuring unit 124 is composed of a part of the continuous grid patterns 122 and includes an electrode portion 126 and a wiring portion 128. The pads 130 are disposed on the peripheral area A2 of the substrate 110 and on the same side of the touch area A1. The trace portion 128 of the sensing unit 124 extends from the electrode portion 126 to the pad 130.

As shown in FIG. 1A, each of the mesh patterns 122 is surrounded by a plurality of side strips 122a. Each of the trace portions 128 is continuously connected by at least one side strip 122a of each of the grid patterns 122 in the partial grid pattern 122, and at least a portion of the side strips 122a, in particular, are present in any two adjacent traces. The edge strips 122a between the portions 128 are broken to form a plurality of gaps D, so that the trace portions 128 are electrically isolated from each other. In this embodiment, each of the side strips 122a has a length of 15 micrometers to 300 micrometers, and the gap D on the broken side strips 122a has a width of 5 micrometers to 50 micrometers, but the length of the side strips 122a is separated from the gap. D size can vary depending on the actual situation, not This is a limitation. In addition, in the embodiment, the conductive mesh layer 120 and the pad 130 are formed by the same conductive layer. Therefore, the pad 130 may also be composed of a plurality of mesh patterns 122. Of course, in other embodiments, the conductive mesh layer 120 and the pads 130 may also be different conductive layers, or the pads 130 may be formed of a solid conductive pattern without being formed by the mesh pattern 122.

FIG. 1B is a partial schematic view of a touch panel according to another embodiment of the present invention. Referring to FIG. 1B, the main difference between this embodiment and the previous embodiment is that, in the embodiment of FIG. 1A, the entire trace portion 128 is formed by the side strip 122a of the broken portion of the continuous grid pattern 122. The routing portion 128 extends from the electrode portion 126 of the touch region A1 to the peripheral region A2 to be connected to the pad 130 formed by the mesh pattern 122. In this embodiment, the routing portion 128' includes a first routing portion 128a located in the touch area A1 and a second routing portion 128b located in the peripheral area A2. The first routing portion 128a is broken. The open mesh pattern 122' is configured, and the second trace portion 128b and the pad 130' are respectively formed of a solid conductive pattern. The first wiring portion 128a extends from the electrode portion 126' of the touch area A1 to the second wiring portion 128b of the peripheral area A2, and is connected to the pad 130' through the second wiring portion 128b.

Please return to FIG. 1A. In this embodiment, the material of the conductive mesh layer 120 includes at least one of copper, silver, aluminum, chromium, titanium, molybdenum, an alloy of the at least two or a composite layer of the above materials. (For example, molybdenum-aluminum-molybdenum), but not limited thereto, and the mesh pattern 122 of the conductive mesh layer 120 is surrounded by a plurality of extremely thin side strips 122a. In other words, the touch panel 100 of the present embodiment forms the electrode portion 126 and the trace portion 128 by the conductive mesh layer 120 made of metal, instead of the conventional transparent conductive material. The electrode portion and the wiring portion are made, except that the material of the conductive mesh layer 120 can make the sensing unit 124 have a lower impedance. Since the width of the side strips 122a of the mesh pattern 122 is only a few micrometers, the routing portions 128 The arrangement can be closely arranged, and the area of the ineffective sensing area of the touch panel 100 is greatly reduced. As a result, the distance between the electrode portion 126 and the electrode portion 126 can be reduced, which effectively improves the sensing linearity of the touch panel 100. Moreover, the touch panel 100 of the present embodiment replaces the transparent conductive material including the rare metal (indium) with the above-described material to form the sensing unit 124, which can effectively reduce the process cost.

It should be noted that although the conductive mesh layer 120 is made of an opaque metal or an alloy material, since the conductive mesh layer 120 is formed of a very thin metal wire, the line width of the side strips 122a is only a few micrometers, as long as The mesh pattern 122 of the appropriate shape can reduce the light reflected by the conductive mesh layer 120, affecting the visual effect of the touch panel 100 (for example, seeing bright spots or chromatic aberrations), and achieving the traditional touch. A transparent (transparent) effect similar to a transparent conductive material in a panel. Therefore, the user does not easily perceive the presence of the side strip 122a. Also, in FIG. 1A, the ratio of the grid pattern 122 to the sensing unit 124 and the pad 130 is intentionally changed in order to clearly show the appearance of the grid patterns 122. In practice, the size of the grid pattern 122 can be determined by design requirements.

In this embodiment, the grid pattern 122 is a regular hexagon surrounded by six equal-length side strips 122a, but in other embodiments, the grid pattern 122 may also be surrounded by side strips 122a of different lengths. And the mesh pattern 122 may be a circle, a polygon, an irregular shape, or a combination of the two, etc., and the side strip 122a may be positive A curve, an arc, a zigzag line, or a combination of the above. Of course, the shape of the mesh pattern 122 is not limited to the above, as long as it has a shape that has a low influence on the visual effect of the touch panel 100.

In addition, the conductive mesh layer 120 further includes a plurality of non-actuating units 129 composed of the other portions of the mesh patterns 122. In detail, since the touch panel 100 of the present embodiment is disconnected at a partial position by the entire conductive mesh layer 120 to form the electrode portion 126 and the trace portion 128 in most of the regions, the conductive mesh layer 120 is formed. The other small portions of the upper portion become the non-actuating unit 129, and the non-actuating units 129 are disconnected from the adjacent sensing units 124. In other words, these non-actuating units 129 are electrically presented in a floating state.

When the touch panel 100 is fabricated, only the conductive mesh layer 120 may be disconnected at a local position to form the sensing unit 124. In this case, the non-actuating unit 129 is located in the sensing unit as shown in FIG. 1A. Around 124. Alternatively, in other embodiments, the non-actuating units 129 may also be removed in a patterned manner, leaving only the sensing unit 124. At this time, the area where the non-actuating unit 129 shown in FIG. 1A is located constitutes a blank area.

It is worth mentioning that in FIG. 1A, in order to clearly show the sensing unit 124, the sensing unit 124 is intentionally indicated by a thick line, and the non-actuating unit 129 is represented by a thin line. In fact, the line diameter of the side strip 122a of the grid pattern 122 of the sensing unit 124 is the same as the line diameter of the side strip 122a of the grid pattern 122 of the non-actuating unit 129.

In the touch panel 100 of the embodiment, each of the electrode portions 126 can independently perform the function of touch sensing, that is, the touch panel 100 can be self-contained. Design. The sensing unit 124 located in the area can sense the change in capacitance as long as the user touches the area where the specific electrode portion 126 is located. The electronic device provided with the touch panel 100, such as a smart phone, can perform the corresponding action according to the sensed signal. Of course, FIG. 1A shows only one embodiment of one of the touch panels 100. In other embodiments, the design in which the conductive mesh layer 120 is partially broken to form the electrode portion 126 and the trace portion 128 can also be applied to other types of touch panels.

2 is a partial schematic view of a touch panel in accordance with another embodiment of the present invention. Referring to FIG. 2 , the touch panel 200 of the present embodiment is also partially broken by the grid pattern 222 of the conductive mesh layer 220 to form a plurality of electrode portions 226 and a plurality of routing portions 228 . The main difference between the touch panel 200 of FIG. 2 and the touch panel 100 of FIG. 1 is that, in FIG. 1, each sensing unit 124 can operate independently to sense the presence of a touch action. In the touch panel 200 of FIG. 2, the pair of opposite sensing units 224 are a group. In each group of sensing units 224, the electrode portions 226 of the sensing units 224 can serve as both driving electrodes and sensing electrodes. . That is to say, the touch panel 200 of FIG. 2 is a self-contained design. In addition, in the touch panel 200 of FIG. 2, the widths of the two electrode portions 226 of the two sensing units 224 in the group change in opposite directions, which enables the two electrode portions 226 to be used to sense different touch regions A1. The position of the capacitor changes the touch panel.

In addition, as shown in FIG. 2, a part of the two adjacent trace portions 228 respectively share the same mesh pattern 222 and are composed of different side strips 222a of the same grid pattern 222, and the common grid pattern The other side strips 222a in 222 are broken to form a plurality of gaps D. These gaps D are distributed along a curved path, that is, That is to say, among the side strips 222a that are disconnected between the two trace portions 228, the positions at which the strips 222a are broken are alternately adjacent to one of the two trace portions 228, respectively. In this embodiment, by distributing the gap D which is broken on the side strip 222a in a curved path, the probability of affecting the visual effect when the position of the gap D is regularly arranged (for example, arranged along a straight line) can be reduced, thereby providing a better Optical effect.

3 is a partial schematic view of a touch panel in accordance with another embodiment of the present invention. Referring to FIG. 3, the conductive mesh layer 320 of the present embodiment forms another form of sensing unit 324. In FIG. 3, the electrode portions 326 include a plurality of first electrodes 326a and a plurality of second electrodes 326b. The line portion 328 includes a plurality of first traces 328a and a plurality of second traces 328b. The first traces 328a are respectively connected to the first electrodes 326a and a portion of the pads 330. The second traces 328b are respectively connected. These pads 326b and the other portions of these pads 330. In this embodiment, the first electrode 326a is a driving electrode, the second electrode 326b is a sensing electrode, and a plurality of second electrodes are correspondingly disposed adjacent to the first electrodes. The touch panel 300 of the present embodiment forms a sensing unit 324 of the above-described form by partially breaking the grid pattern 322 of the conductive mesh layer 320, which can be used to sense capacitance changes at different positions in the touch area A1. .

In the above embodiments, the pads 130, 230, and 330 are located on the same side of the touch area A1, that is, all the line portions 128, 228, and 328 need to extend to the same side of the touch area A1 to The pads 130, 230, 330 are connected. In this case, even if any two adjacent wiring portions 128, 228, and 328 share the same tight alignment of the same mesh patterns 122, 222, and 322, n are taken. The line portions 128, 228, 328 still need to occupy n rows of adjacent grid patterns 122, 222, 322. In order to reduce the area of the ineffective sensing area in the touch panel, another way of configuring the pad in the touch area is provided below.

4 is a partial schematic view of a trace and a pad of a touch panel according to another embodiment of the present invention. As shown in FIG. 4, these pads 430 are located on opposite sides of the touch area A1. Therefore, a part of the trace portion 428 extends to one side of the touch area A1, and another portion of the trace portion 428 extends to the other side of the touch area A1. In this way, the two rows of grid patterns 422 can be used to form two trace portions 428 extending in opposite directions, that is, in the conductive mesh layer 420, the grid pattern 422 occupied by the trace portions 428. The number of rows can be reduced or even halved. As shown in FIG. 4, the 10 trace portions 428 only need to occupy 5 rows of adjacent grid patterns 422. In other words, the width occupied by the trace portion 428 in the conductive mesh layer 420 can be reduced, thereby reducing the area of the ineffective sensing region.

In addition, when two trace portions extending in opposite directions are formed by using the same row of grid patterns, the conductive mesh layer 420 may adopt a large-sized grid pattern 422 to have a premise of having fewer invalid sensing regions. It also provides good light transmission.

FIG. 5 is a partial schematic view of a touch panel in accordance with another embodiment of the present invention. Referring to FIG. 5, in the embodiment, the grid pattern 522 includes a plurality of first sub-grids 522b and a plurality of second sub-grids 522c, and the electrode portion 526 is formed by each of the consecutive first sub-grids 522b. At least a portion of a sub-mesh 522b is formed, and the trace portion 528 is at least a second sub-grid 522c of each of the consecutive second sub-grids 522c Part of the connection. In addition, as shown in FIG. 5, the two adjacent trace portions 528 are respectively formed by the same row of consecutive second sub-grids 522c. In the consecutive second sub-grids 522c of the same row, the lateral strips 522a are laterally Disconnected to electrically isolate two adjacent wire portions 528. Of course, in other embodiments, the two adjacent routing portions 528 may not be formed by the second sub-mesh 522c of the same row, and are not limited thereto.

In addition, in the embodiment, the size of each first sub-mesh 522b is larger than the size of each second sub-mesh 522c. In other words, the trace portion 528 is formed by the second sub-mesh 522c having a smaller size to present a denser arrangement, so that the proportion of the trace portion 528 in the conductive mesh layer can be lowered, so that The touch panel 500 has a small area of the ineffective sensing area. Alternatively, the designer can also plan more strips 528 in this limited area to improve the resolution of the touch panel 500.

In the above embodiment, the trace portions are each formed by a side strip connecting a strip, but the shape of the trace portion is not limited thereto, and another type of trace portion will be provided below. FIG. 6 is a schematic diagram of a trace portion of a touch panel according to another embodiment of the present invention. Referring to FIG. 6, in the embodiment, the routing portion 628 is formed by connecting successive entire grid patterns 622, that is, the series of grid patterns 622 are different routing portions. 628. Of course, the side strips 622a between the different trace portions 628 are also in a state of being disconnected, and the two adjacent trace portions 628 are electrically isolated. Of course, the above description only provides a plurality of types of routing parts, and the designer can adjust according to actual needs, and is not limited thereto.

7 is a partial schematic view of a touch panel in accordance with another embodiment of the present invention. Referring to FIG. 7, the conductive mesh layer 720 of the present embodiment forms another form. Sensing unit 724. The electrode portion 726 includes a first electrode 726a and a second electrode 726b, and the wiring portion 728 includes a first trace 728a and a second trace 728b. In this embodiment, the first electrode 726a is a driving electrode, and the second electrode 726b is a sensing electrode.

As shown in FIG. 7, the first electrode and the corresponding two second electrodes respectively have a comb shape facing each other, and a part of the comb portion of the second electrode protrudes between the comb portions of the first electrode. The grid pattern 722 of the conductive mesh layer 720 of the present embodiment is partially broken to form a sensing unit 724 of the above-described form that can be used to sense capacitance changes at different locations.

In FIG. 7, a first electrode 726a is combined with two second electrodes 726b as a group. In fact, the correspondence between the first electrode 726a and the second electrode 726b is not limited thereto, and the conductive mesh layer 720 can form a plurality of sets of the sensing units 724 as shown in FIG. 7, which are not in quantity. The set shown in Figure 7 is a limitation.

In addition to being disposed in the touch area A1, the sensing unit of the foregoing embodiment may extend the sensing unit to the peripheral area A2 according to the requirements of the touch panel to reduce the sensing line of the boundary area between the peripheral area A2 and the touch area A1. The variation of the degree of sex, or a specific graphic or text area (not shown) disposed in the peripheral area A2, to perform the touch sensing function corresponding to each icon or text, but not Limited.

The substrate 110 of all the foregoing embodiments may be a glass substrate, a plastic substrate, a glass-plastic composite substrate or a cover sheet. The cover plate may comprise a glass cover plate, a plastic cover plate or other cover plate with high mechanical strength material to protect (for example, scratch-proof), cover or beautify the corresponding device, the cover plate may have a thickness of 0.2 mm. To 1.0 mm. Cover plate can be flat The surface shape or the curved shape, or a combination thereof, is, for example, 2.5D glass, but is not limited thereto. Alternatively, an anti-smudge coating may be provided on one side of the cover sheet facing the user. The substrate 110 of all the foregoing embodiments may also be a substrate of the display, such as a color filter substrate, an array substrate or a package cover of an organic light emitting display (OLED). In addition, the touch panel of all the foregoing embodiments may further include another cover plate disposed facing the substrate 110, the cover plate being provided with a decorative layer, and the decorative layer being disposed corresponding to the peripheral area A2 of the substrate 110.

The conductive mesh layer in all the foregoing embodiments is formed by a very thin metal wire, and the line width of the side strip is only a few micrometers. As long as the mesh pattern is appropriately shaped, the light is reflected by the conductive mesh layer to achieve the conventional A transparent (transparent) effect similar to a transparent conductive material in a touch panel. In this way, the periphery of the touch panel is not necessarily required to cover the traces by the decorative layer, and a panel product with a narrow border or even no border is obtained.

In summary, the touch panel of the present invention forms a plurality of sensing units by partially breaking a plurality of mesh patterns of the conductive mesh layer. Since the grid pattern itself can be made of a material having good electrical conductivity such as metal or metal alloy, a single strip of these grid patterns can realize the function of signal transmission. Therefore, the trace portions of the sensing units can be closely arranged such that the spacing between the trace portions can be equal to the pitch of the grid pattern, which greatly reduces the area of the ineffective sensing region, effectively improving the touch panel. Sensing linearity. In addition, the grid pattern may include a first sub-grid and a second sub-grid of different sizes, and the trace portion of the sensing unit is formed by a second sub-grid of a small size to be set in a limited area. Multiple lines, and lift The resolution of the control panel. In addition, the pads of the touch panel of the present invention can be disposed on the same side or opposite sides of the touch area. When the pads are disposed on opposite sides, the same row of grid patterns can be used to form two trace portions extending in opposite directions, that is, in the conductive mesh layer, the grid occupied by the trace portions The number of rows of the pattern can be reduced or even halved, which further reduces the area of the ineffective sensing area in the touch panel. Moreover, when two trace lines extending in opposite directions are formed by using the grid pattern of the same row, the conductive mesh layer of the touch panel can adopt a large grid pattern, which can make the touch panel have less invalid. Under the premise of the sensing area, the touch panel can also provide good light transmittance. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the novel creation, and any person skilled in the art can make some changes without departing from the spirit and scope of the novel creation. Retouching, the scope of protection of this new creation is subject to the definition of the scope of the patent application attached.

A1‧‧‧ touch area

A2‧‧‧ surrounding area

D‧‧‧ gap

100‧‧‧ touch panel

110‧‧‧Substrate

120‧‧‧ Conductive mesh layer

122‧‧‧ grid pattern

122a‧‧‧Side strips

124‧‧‧Sensor unit

126‧‧‧Electrode

128‧‧‧Drop department

129‧‧‧Non-actuated unit

130‧‧‧ pads

Claims (21)

A touch panel includes a substrate including a touch area and a peripheral area on at least one side of the touch area; a conductive mesh layer disposed on the substrate and including a plurality of mesh patterns, and The grid patterns are partially broken and at least a plurality of sensing units are defined in the touch area, wherein each of the sensing units is formed by a part of the continuous grid patterns and includes an electrode portion and And a plurality of pads disposed on the peripheral region of the substrate, wherein the trace portions extend from the electrode portions to be connected to the pads. The touch panel of claim 1, wherein the grid patterns comprise a plurality of first sub-grids and a plurality of second sub-grids, wherein the electrode portions are respectively separated by the first ones At least a portion of the mesh is formed, and the wire portions are respectively connected by at least a portion of the plurality of second sub-grids. The touch panel of claim 2, wherein the trace portions are respectively connected by at least a portion of each of the second sub-grids in the plurality of second sub-grids. The touch panel of claim 2, wherein the size of each of the first sub-grids is greater than or equal to the size of each of the second sub-grids. The touch panel of claim 2, wherein at least one of the second sub-grids is disconnected to form a portion of one of the trace portions and a portion of an adjacent one of the trace portions. The touch panel of claim 1, wherein the conductive mesh layer and the pads are composed of the same conductive layer. The touch panel of claim 1, wherein each of the grid patterns is surrounded by a plurality of side strips, each of the line portions being formed by each of the portions of the plurality of grid patterns At least one of the side strips of the grid pattern is connected, and at least a portion of the edge strips between the two adjacent ones of the trace portions are broken to form a plurality of gaps, so as to be between the trace portions Electrically isolated from each other. The touch panel of claim 7, wherein the gaps are distributed along a curved path. The touch panel of claim 7, wherein each of the side strips has a length of 15 micrometers to 300 micrometers. The touch panel of claim 7, wherein each of the gaps is 5 micrometers to 50 micrometers. The touch panel of claim 1, wherein the conductive mesh layer further comprises a plurality of non-actuating units formed by the other portion of the grid patterns, each of the non-actuating units and the adjacent ones. The sensing units are disconnected. The touch panel of claim 1, wherein the pads are located on the same side of the touch area. The touch panel of claim 1, wherein the pads are located on opposite sides of the touch area. The touch panel of claim 1, wherein the electrode portions comprise a plurality of first electrodes and a plurality of second electrodes, and the plurality of wires comprise a plurality of first portions And a plurality of second traces respectively connected to the first electrodes and the portions of the pads, wherein the second traces are respectively connected to the second electrodes and another portion These pads. The touch panel of claim 14, wherein the first electrodes are driving electrodes, and the second electrodes are sensing electrodes. The touch panel of claim 14, wherein at least two of the second electrodes are disposed correspondingly to the first electrodes. The touch panel of claim 14, wherein the first electrodes and the second electrodes are respectively comb-shaped. The touch panel of claim 1, wherein the sensing units are grouped in groups, and the widths of the two electrode portions of the two sensing units are opposite in color. The touch panel of claim 1, wherein the substrate comprises a glass substrate, a plastic substrate, a glass-plastic composite substrate or a cover plate. The touch panel of claim 1, wherein the substrate comprises a substrate of a display, and the substrate of the display comprises a color filter substrate, an array substrate or a package cover of an organic light emitting display. The touch panel of claim 1, further comprising a cover plate disposed facing the substrate, wherein the cover plate comprises a decorative layer, and the decorative layer corresponds to the peripheral region of the substrate Settings.