Touch panels and displays, electronic devices

Abstract

A touch panel, display screen, and electronic device are disclosed. The touch panel includes a touch area and a wiring area. The touch area has a plurality of touch channels arranged at intervals and extending along a first direction, including adjacent first touch channels and second touch channels. Each first touch channel includes a first electrode, and each second touch channel includes a second electrode. The wiring area has a first end wiring and a second end wiring of the first electrode, and a first end wiring of the second electrode. The projection of the first end wiring of the second electrode in the first direction does not overlap with the projection of the first end wiring of the first electrode in the first direction, but overlaps with the projection of the second end wiring of the first electrode in the first direction. The projection of the second end wiring of the first electrode on the first end wiring of the second electrode overlaps with the first end wiring of the second electrode. Using this application can improve the accuracy of capacitive writing pen strokes.

Description

Technical Field

[0001] This application relates to the field of electronic information technology, and in particular to a touch panel and display screen, and an electronic device. Background Technology

[0002] As mobile phones, tablets, and other small-to-medium-sized display devices demand thinner and lighter designs and better interactive experiences, users are no longer satisfied with simply interacting with the display device using their fingers, and the demand for styluses is also increasing.

[0003] Currently, for capacitive styluses, the uniform transmission of signals emitted by the stylus through the touch traces of the touch panel in the display device is crucial. Therefore, the touch trace design of the touch panel is a significant factor affecting the accuracy of stylus drawing. Existing touch trace designs primarily employ a method of having the same type of electrode lead out at different locations. For example, in... Figure 1 In the schematic diagram of the touch panel's planar structure shown, the light gray rectangular area represents the touch area. The dark gray lines RX_trace and black lines TX_trace, located outside the touch area and along its edge, represent the traces of the transmitting and receiving electrodes, respectively. The receiving electrodes RX(n-1), RXn, RX(n+1), and RX(n+2) are located in four adjacent touch channels within the touch area. Since the traces of the receiving electrodes originate from the touch area, the directions of the traces RXn_trace of receiving electrode RXn and RX(n+1)_trace of receiving electrode RX(n+1) are right and left, respectively. The direction of the trace RX(n-1)_trace of receiving electrode RX(n-1) is the same as that of receiving electrode RXn, and the direction of the trace RX(n+2)_trace of receiving electrode RX(n+1) is the same as that of receiving electrode RX(n+1).

[0004] The aforementioned routing method results in a different signal environment between electrode RXn and its trace RXn_trace and between electrode RX(n+1) and its trace RX(n+1)_trace, compared to the signal environment between electrode RX(n-1) and its trace RX(n-1)_trace and electrode RXn and its trace RXn_trace, and also different from the signal environment between electrode RX(n+1) and its trace RX(n+1)_trace and electrode RX(n+2) and its trace RX(n+2)_trace. This can cause issues when the overall signal-to-noise ratio is low, leading to problems with the capacitive stylus pen's ability to draw lines. Figure 1 The elliptical dashed line area shown exhibits jitter, which in turn reduces the accuracy of the lines drawn by the capacitive writing pen. Summary of the Invention

[0005] This application provides a touch panel and display screen, and an electronic device, which can improve the accuracy of lines drawn by a capacitive stylus, thereby enhancing the user experience of using a capacitive stylus.

[0006] In a first aspect, embodiments of this application provide a touch panel, which includes a touch area and a wiring area located outside the touch area and disposed along the edge of the touch area. The touch area is provided with a plurality of touch channels arranged at intervals and extending along a first direction, including adjacent first touch channels and second touch channels. Each first touch channel includes a first electrode, and each second touch channel includes a second electrode; the first and second electrodes are of the same type. The wiring area is provided with first-end wiring and second-end wiring of the first electrode, and first-end wiring of the second electrode. Both the first-end wiring of the first electrode and the first-end wiring of the second electrode are used to connect to a controller of the touch panel. A portion of the traces at the first end of the first electrode are parallel to a portion of the traces at the first end of the second electrode. The projections of the traces at the first end of the first electrode in the first direction do not overlap with the projections of the traces at the first end of the second electrode in the first direction. A portion of the traces at the second end of the first electrode are parallel to a portion of the traces at the first end of the second electrode. The projections of the traces at the second end of the first electrode in the first direction overlap with the projections of the traces at the first end of the second electrode in the first direction. The projections of the traces at the second end of the first electrode on the traces at the first end of the second electrode overlap with the traces at the first end of the second electrode.

[0007] Understandably, by adding the projection of the first end trace of the second electrode to the trace area, which overlaps with the second end trace of the first electrode, a capacitance compensation method is used to increase the capacitance value between the trace of the first electrode and the first end trace of the second electrode. This improves the jitter problem caused by the opposite wiring direction of the first end traces of two similar electrodes in two adjacent touch channels when the capacitive stylus draws lines on the touch panel, thereby improving the accuracy of the capacitive stylus's lines and enhancing the user experience.

[0008] In conjunction with the first aspect, in a first possible implementation, the vertical projection of the second end trace of the first electrode onto the bottom surface of the touch panel does not overlap with the vertical projection of the first end trace of the second electrode onto the bottom surface of the touch panel. For example, the second end trace of the first electrode can be located to the left (including directly left, upper left, and lower left) or to the right (including directly right, upper right, and lower right) of the first end trace of the second electrode, allowing for diverse and highly flexible positioning.

[0009] In conjunction with the first aspect, in a second possible implementation, the vertical projection of the second end trace of the first electrode onto the bottom surface of the touch panel overlaps with the vertical projection of the first end trace of the second electrode onto the bottom surface of the touch panel. It is understood that, in a direction perpendicular to the bottom surface of the touch panel, the second end trace of the first electrode can be located above or below the first end trace of the second electrode, allowing for diverse and flexible placement of the second end trace.

[0010] In conjunction with any of the first to second possible embodiments of the first aspect, in the third possible embodiment, the plurality of touch channels are all located on the same plane parallel to the bottom surface of the touch panel, and the plurality of touch channels also include a third touch channel, the third touch channel being adjacent to the second touch channel, and the first channel spacing between the first touch channel and the second touch channel being less than the second channel spacing between the second touch channel and the third touch channel.

[0011] Understandably, this embodiment combines inter-line capacitance compensation with shortening the spacing between the first channels to simultaneously increase the capacitance between the traces of the first electrode and the first end traces of the second electrode, as well as the capacitance value between the first and second electrodes. This improves the jitter problem caused by the opposite routing direction of the first end traces of two similar electrodes in two adjacent touch channels when the capacitive stylus draws lines on the touch panel, thereby improving the accuracy of the capacitive stylus's lines and enhancing the user experience. Furthermore, touch panels offer diverse structures and high flexibility.

[0012] In a fourth possible implementation, in combination with any of the first to second possible implementations of the first aspect, the vertical projection of the first touch channel on the bottom surface of the touch panel overlaps with the vertical projection of the second touch channel on the bottom surface of the touch panel.

[0013] Understandably, this embodiment combines inter-line capacitance compensation with increasing the facing area between channels. It simultaneously increases the capacitance between the traces of the first electrode and the first end trace of the second electrode, as well as the capacitance between the first and second electrodes. This improves the jitter problem caused by the opposite routing directions of the first ends of two identical electrodes in two adjacent touch channels when the capacitive stylus draws lines on the touch panel, thereby improving the accuracy of the capacitive stylus's lines and enhancing the user experience. Furthermore, touch panels offer diverse structures and high flexibility.

[0014] In a fifth possible embodiment, in conjunction with any of the first to fourth possible implementations of the first aspect, the plurality of touch channels further includes a third touch channel, which is adjacent to the second touch channel. The third touch channel includes a third electrode, which is of the same type as the second electrode. The wiring area also includes a first end trace of the third electrode, which is used to connect to the controller. A portion of the first end trace of the third electrode is parallel to a portion of the first end trace of the second electrode, and the projection of the first end trace of the third electrode in a first direction overlaps with the projection of the first end trace of the second electrode in the first direction. The length of the overlap between the projection of the second end trace of the first electrode onto the first end trace of the second electrode and the first end trace of the second electrode is determined by the capacitance value between the first end trace of the third electrode and the first end trace of the second electrode.

[0015] Understandably, by adjusting the length of the overlapping traces, the capacitance between the first electrode and its trace and the second electrode and its first end trace can be made equal to the capacitance between the second electrode and its first end trace and the third electrode and its first end trace. This can improve the jitter problem caused by the opposite wiring direction of the first end traces of two similar electrodes in two adjacent touch channels when the capacitive stylus draws lines on the touch panel, thereby improving the accuracy of the capacitive stylus's lines and enhancing the user experience.

[0016] In conjunction with any of the first to fifth possible implementations of the first aspect, in the sixth possible implementation, the trace at the second end of the first electrode is a single-layer trace or a double-layer trace. It is understood that the touch panel is suitable for both single-layer and double-layer trace applications, demonstrating strong applicability.

[0017] Secondly, embodiments of this application provide a touch panel, which includes a touch area and a wiring area located outside the touch area and disposed along the edge of the touch area. The touch area is provided with a plurality of touch channels arranged at intervals, extending along a first direction, and located on the same plane parallel to the bottom surface of the touch panel. The plurality of touch channels include a first touch channel, a second touch channel, and a third touch channel, both of which are adjacent to the second touch channel. The first touch channel includes a first electrode, and the second touch channel includes a second electrode; the first electrode and the second electrode are electrodes of the same type. The wiring area is provided with first-end wirings of the first electrode and first-end wirings of the second electrode. Both the first-end wirings of the first electrode and the first-end wirings of the second electrode are used to connect to a controller of the touch panel. A portion of the first-end wiring of the first electrode is parallel to a portion of the first-end wiring of the second electrode, and the projections of the first-end wirings of the first electrode and the first-end wirings of the second electrode in the first direction do not overlap. The first channel spacing between the first touch channel and the second touch channel is less than the second channel spacing between the second touch channel and the third touch channel.

[0018] Understandably, by shortening the spacing between the first and second electrodes, the inter-plate spacing between the first and second electrodes is reduced, thereby increasing the capacitance between them. This improves the jitter caused by the opposite routing direction of the first ends of the two electrodes of the same type in two adjacent touch channels when the capacitive stylus draws lines on the touch panel, thus improving the accuracy of the capacitive stylus and enhancing the user experience.

[0019] In conjunction with the second aspect, in a first possible implementation, the routing area further includes a second end routing of the first electrode, a portion of the second end routing of the first electrode is parallel to a portion of the first end routing of the second electrode, the projection of the second end routing of the first electrode in a first direction overlaps with the projection of the first end routing of the second electrode in a first direction, and the projection of the second end routing of the first electrode on the first end routing of the second electrode overlaps with the first end routing of the second electrode.

[0020] Understandably, this embodiment combines shortening the first channel spacing with trace capacitance compensation to simultaneously increase the capacitance between the traces of the first electrode and the first end trace of the second electrode, as well as the capacitance between the first and second electrodes. This improves the jitter problem caused by the opposite routing direction of the first end traces of two similar electrodes in two adjacent touch channels when the capacitive stylus draws lines on the touch panel, thereby improving the accuracy of the capacitive stylus's lines and enhancing the user experience. Furthermore, touch panels offer diverse structures and high flexibility.

[0021] In conjunction with the first possible implementation of the second aspect, in the second possible implementation, the vertical projection of the second end trace of the first electrode on the bottom surface of the touch panel does not overlap with the vertical projection of the first end trace of the second electrode on the bottom surface of the touch panel.

[0022] In conjunction with the first possible implementation of the second aspect, in the third possible implementation, the vertical projection of the second end trace of the first electrode on the bottom surface of the touch panel overlaps with the vertical projection of the first end trace of the second electrode on the bottom surface of the touch panel.

[0023] In a fourth possible implementation, combining any of the second to third possible embodiments, the third touch channel includes a third electrode, which is of the same type as the second electrode. The routing area also includes a first-end trace of the third electrode, used to connect to the controller. A portion of the first-end trace of the third electrode is parallel to a portion of the first-end trace of the second electrode, and the projections of the first-end traces of the third electrode and the first-end traces of the second electrode in the first direction overlap. The first channel spacing is determined by the capacitance value between the first-end traces of the third electrode and the first-end traces of the second electrode. It is understood that the capacitance value between the first-end traces of the first electrode and the first-end traces of the second electrode can be compensated by adjusting the size of the first channel spacing, offering high flexibility.

[0024] Thirdly, embodiments of this application provide a touch panel, which includes a touch area and a wiring area located outside the touch area and disposed along the edge of the touch area. The touch area is provided with a plurality of touch channels arranged at intervals and extending along a first direction, including adjacent first touch channels and second touch channels. Each first touch channel includes a first electrode, and each second touch channel includes a second electrode; the first and second electrodes are of the same type. The wiring area is provided with first-end wirings of the first electrode and first-end wirings of the second electrode. Both the first-end wirings of the first electrode and the first-end wirings of the second electrode are used to connect to a controller of the touch panel. A portion of the first-end wiring of the first electrode is parallel to a portion of the first-end wiring of the second electrode, and the projections of the first-end wirings of the first electrode and the first-end wirings of the second electrode in the first direction do not overlap. The vertical projections of the first touch channels on the bottom surface of the touch panel and the vertical projections of the second touch channels on the bottom surface of the touch panel overlap.

[0025] Understandably, by increasing the facing area between the first touch channel and the second touch channel (hereinafter referred to as increasing the facing area between channels), the facing area between the first electrode and the second electrode is increased, thereby increasing the capacitance value between the first electrode and the second electrode. This improves the jitter problem caused by the opposite wiring direction of the first ends of the two electrodes of the same type in the two adjacent touch channels when the capacitive stylus draws lines on the touch panel, thereby improving the accuracy of the capacitive stylus's line drawing and enhancing the user's experience of using the capacitive stylus.

[0026] In conjunction with the third aspect, in a first possible implementation, the routing area further includes a second end routing of the first electrode, a portion of the second end routing of the first electrode is parallel to a portion of the first end routing of the second electrode, the projection of the second end routing of the first electrode in a first direction overlaps with the projection of the first end routing of the second electrode in a first direction, and the projection of the second end routing of the first electrode on the first end routing of the second electrode overlaps with the first end routing of the second electrode.

[0027] Understandably, this embodiment combines increasing the area of ​​the face-to-face channels with capacitance compensation between traces. It simultaneously increases the capacitance between the traces of the first electrode and the first end trace of the second electrode, as well as the capacitance between the first and second electrodes. This improves the jitter problem caused by the opposite routing directions of the first ends of two identical electrodes in two adjacent touch channels when the capacitive stylus draws lines on the touch panel, thereby improving the accuracy of the capacitive stylus's lines and enhancing the user experience. Furthermore, touch panels offer diverse structures and high flexibility.

[0028] In conjunction with the first possible implementation of the third aspect, in the second possible implementation, the vertical projection of the second end trace of the first electrode on the bottom surface of the touch panel does not overlap with the vertical projection of the first end trace of the second electrode on the bottom surface of the touch panel.

[0029] In conjunction with the first possible implementation of the third aspect, in the third possible implementation, the vertical projection of the second end trace of the first electrode on the bottom surface of the touch panel overlaps with the vertical projection of the first end trace of the second electrode on the bottom surface of the touch panel.

[0030] In a fourth possible implementation, combining any of the third aspect to the third possible implementation, the plurality of touch channels further includes a third touch channel, which is adjacent to the second touch channel. The third touch channel includes a third electrode, which is of the same type as the second electrode. The routing area also includes a first-end trace of the third electrode, which is used to connect to the controller. A portion of the first-end trace of the third electrode is parallel to a portion of the first-end trace of the second electrode, and the projection of the first-end trace of the third electrode in a first direction overlaps with the projection of the first-end trace of the second electrode in the first direction. The area of ​​the overlapping region is determined by the capacitance value between the first-end trace of the second electrode and the first-end trace of the third electrode. It is understood that the capacitance value between the first-end trace of the first electrode and the first-end trace of the second electrode can be compensated by adjusting the area of ​​the overlapping region, offering high flexibility.

[0031] Fourthly, embodiments of this application provide a display screen, which includes a display panel and a touch panel provided in any of the possible implementations of the first to third aspects, wherein the touch panel is located above the display panel.

[0032] Understandably, by employing at least one of the following methods—inter-line capacitance compensation, shortening the first channel spacing, and increasing the face-to-face area between channels—the touch panel in the display screen can effectively improve the jitter problem caused by the opposite routing direction of the first ends of two electrodes of the same type in two adjacent touch channels when drawing lines on the display screen with a capacitive stylus. This improves the accuracy of the capacitive stylus's lines and enhances the user experience.

[0033] Fifthly, embodiments of this application provide a display screen, which includes a display panel and a touch panel provided in any of the possible implementations of the first to third aspects, wherein the touch panel is integrated inside the display panel.

[0034] Understandably, by employing at least one of the following methods—capacitance compensation between traces, shortening the spacing between the first channels, and increasing the facing area between channels—the touch panel in the display screen can effectively improve the jitter problem caused by the opposite routing direction of the first ends of two identical electrodes in two adjacent touch channels when drawing lines on the screen. This improves the accuracy of line drawing with the capacitive stylus and enhances the user experience. Furthermore, besides using a design where the touch panel is externally mounted to the display panel, the display screen can also be embedded within it, offering diverse and highly flexible structural options.

[0035] In a sixth aspect, embodiments of this application provide an electronic device, which includes a stylus, a housing, and a display screen provided by a fourth or fifth aspect connected to the housing, wherein the stylus is used as an input device for the electronic device.

[0036] Understandably, touch panels in electronic devices can effectively improve the jitter problem caused by the opposite wiring direction of the first ends of two electrodes of the same type in two adjacent touch channels when drawing lines on the screen of an electronic device by adopting at least one of the following methods: inter-line capacitance compensation, shortening the first channel spacing, and increasing the facing area between channels. This improves the accuracy of drawing lines with capacitive styluses and enhances the user experience of using capacitive styluses.

[0037] It should be understood that the implementation and beneficial effects of the above-mentioned aspects of the present application can be referenced to each other. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of a planar structure of a touch panel provided by existing technology;

[0039] Figure 2 This is a schematic diagram illustrating the application scenario of the electronic device provided in the embodiments of this application;

[0040] Figure 3 This is a schematic diagram of the structure of a display screen provided in an embodiment of this application;

[0041] Figure 4 This is a schematic diagram of another planar structure of a touch panel provided by existing technology;

[0042] Figure 5 This is a schematic diagram of a planar structure of the touch panel provided in an embodiment of this application;

[0043] Figure 6a This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application;

[0044] Figure 6b This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application;

[0045] Figure 7 This is a schematic diagram of the entire surface structure of the touch panel provided in the embodiments of this application;

[0046] Figure 8a This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application;

[0047] Figure 8b This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application;

[0048] Figure 9 This is a schematic diagram of another cross-sectional structure of the touch panel provided in the embodiments of this application;

[0049] Figure 10 This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application;

[0050] Figure 11 This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application;

[0051] Figure 12 This is a cross-sectional structural diagram of the touch panel provided in the embodiments of this application;

[0052] Figure 13 This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application;

[0053] Figure 14 This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application. Detailed Implementation

[0054] The touch panel, display screen, and electronic device provided in this application are suitable for smartphones (including foldable phones and candybar phones), tablets, desktop computers, televisions, printers, and other devices with touch panels that support styluse input. They can be applied in the fields of electronics, automobiles, and aerospace. The following is a combination of... Figure 2 and Figure 3 This paper uses a tablet computer as an example to illustrate the application scenarios of electronic devices.

[0055] See Figure 2 , Figure 2 This is a schematic diagram illustrating an application scenario of the electronic device provided in this application. The electronic device provided in this application is suitable for... Figure 2 The tablet computer mentioned above supports Figure 2 The stylus serves as its own input device, and is a capacitive stylus. The tablet computer includes a display screen and a casing connected to the display screen. The display screen provided in this application can be... Figure 3 The display screen 1 shown. Specifically, as... Figure 3 As shown in (a), the display screen 1 includes a touch panel 10 and a display panel 11, wherein the touch panel 10 is located above the display panel 11, indicating that in this embodiment, the touch panel 10 is externally attached to the display panel 11. Optionally, as... Figure 3As shown in (b), the display screen 1 includes a touch panel 10, an encapsulation layer 12, and a light-emitting layer 13. The touch panel 10 is located above the encapsulation layer 12, and the encapsulation layer 12 is located above the light-emitting layer 13. The light-emitting layer 13 is composed of an organic light-emitting diode (OLED). In this embodiment, the display screen 1 is a display panel, and the touch panel 10 is integrated inside the display panel 11, thereby reducing the thickness of the display screen 1. It should be noted that the touch panel 10 provided in this application is a touch screen. Furthermore, the specific structure of the touch panel 10 in this embodiment will be described in subsequent embodiments and will not be elaborated here.

[0056] For example, when a user draws or writes on the touch panel 10 of a tablet computer, the user transmits a voltage signal to the electrodes in the touch channel of the touch panel 10 by touching the touch panel 10 with a stylus. This causes the voltage signal of the touched touch channel to be different from the voltage signals of other touch channels. The tablet computer then calculates the coordinates of the contact position between the stylus and the touch panel 10 based on the voltage signals of each touch channel. The tablet computer then displays the contact trajectory between the stylus and the touch panel 10, i.e., the user's handwriting trajectory, on the display screen 1 at that coordinate.

[0057] The following combination Figures 4 to 14 The structure and working principle of the touch panel provided in this application are illustrated with examples.

[0058] To make it easier to understand, firstly... Figure 1 The reason why the routing signal environment between trace RXn_trace and trace RX(n+1)_trace is different from that between trace RX(n-1)_trace and trace RXn_trace, and also different from that between trace RX(n+1)_trace and trace RX(n+2)_trace, in the schematic diagram of the planar structure of the touch panel shown, will be explained.

[0059] See Figure 4 , Figure 4 This is a schematic diagram of another planar structure of a touch panel provided by existing technology. For example... Figure 4 As shown, for ease of description, the capacitance between trace RX(n-1)_trace and trace RXn_trace is defined as... Figure 4 As shown in C11, the capacitance between trace RXn_trace and trace RX(n+1)_trace is defined as... Figure 4As shown in C21, the capacitance formed by the trace RX(n+1)_trace through the Guard (i.e., in floating state) and the trace RX(n+2)_trace, hereinafter referred to as the capacitance between the trace RX(n+1)_trace and the trace RX(n+2)_trace, is defined as follows: Figure 4 The C31 shown is an example. It should be noted that in the actual structure of the touch panel, Figure 4 The capacitors C11, C21, and C31 in the diagram are not actual entities; they are used here for ease of description. Due to the different exit positions, the traces RXn_trace and RX(n+1)_trace separate directionally at the edge of the touch area. That is, the exit direction of trace RXn_trace is opposite to that of trace RX(n+1)_trace. This separation causes the capacitance values ​​of C11, C21, and C31 to change from approximately equal to significantly smaller than those of C11 or C31. Since electrodes RX(n-1), RXn, RX(n+1), and RX(n+2) are located in four adjacent touch channels, and the channel distance between any two adjacent touch channels is the same, the capacitance values ​​between electrodes RX(n-1) and RXn, RXn and RX(n+1), and RX(n+1) and RX(n+2) are equal. Therefore, the capacitance value C1 between electrode RX(n-1) and its trace RX(n-1)_trace and electrode RXn and its trace RXn_trace is approximately equal to the capacitance value C3 between electrode RX(n+1) and its trace RX(n+1)_trace and electrode RX(n+2) and its trace RX(n+2)_trace; the capacitance value C2 between electrode RXn and its trace RXn_trace and electrode RX(n+1) and its trace RX(n+1)_trace is much smaller than C1 or C3. That is, the routing signal environment between electrode RXn and its trace RXn_trace and electrode RX(n+1) and its trace RX(n+1)_trace is different from the routing signal environment between electrode RX(n-1) and its trace RX(n-1)_trace and electrode RXn and its trace RXn_trace, and also different from the routing signal environment between electrode RX(n+1) and its trace RX(n+1)_trace and electrode RX(n+2) and its trace RX(n+2)_trace.

[0060] Based on this, this application increases the capacitance between electrode RX(n-1) and electrode RXn, or increases the capacitance between electrode RXn and electrode RX(n+1), so that C1≈C2≈C3. This makes the routing signal environment between electrode RXn and its trace RXn_trace and between electrode RX(n+1) and its trace RX(n+1)_trace close to the routing signal environment between electrode RX(n-1) and its trace RX(n-1)_trace and between electrode RXn and its trace RXn_trace, and also close to the routing signal environment between electrode RX(n+1) and its trace RX(n+1)_trace and between electrode RX(n+2) and its trace RX(n+2)_trace.

[0061] See Figure 5 , Figure 5 This is a schematic diagram of a planar structure of a touch panel provided in an embodiment of this application. Figure 5 As shown, the touch panel 10 includes a touch area A and a wiring area B located outside the touch area A and along the edge of the touch area A. Wherein:

[0062] The touch area A is provided with multiple touch channels arranged at intervals and extending along a first direction. The multiple touch channels include adjacent first touch channels and second touch channels. The first touch channel includes a first electrode, and the second touch channel includes a second electrode. The first electrode and the second electrode are electrodes of the same type.

[0063] The wiring area B is provided with a first end wiring of a first electrode and a first end wiring of a second electrode. Both the first end wiring of the first electrode and the first end wiring of the second electrode are used to connect to the controller 101 of the touch panel 10. Part of the first end wiring of the first electrode is parallel to part of the first end wiring of the second electrode. The projection of the first end wiring of the first electrode in the first direction does not overlap with the projection of the first end wiring of the second electrode in the first direction.

[0064] In an optional embodiment, the routing area is further provided with a second end routing of the first electrode. A portion of the second end routing of the first electrode is parallel to a portion of the first end routing of the second electrode. The projection of the second end routing of the first electrode in a first direction overlaps with the projection of the first end routing of the second electrode in the first direction. The projection of the second end routing of the first electrode on the first end routing of the second electrode overlaps with the first end routing of the second electrode.

[0065] To facilitate the explanation of the beneficial effects of the embodiments of this application, the third electrode included in the third touch channel among the above-mentioned plurality of touch channels, and the first end trace of the third electrode are shown below. The third touch channel is adjacent to the second touch channel, and the third touch channel includes a third electrode, which is of the same type as the second electrode. The trace area also includes the first end trace of the third electrode, which is used to connect to the controller 101. A portion of the trace of the first end of the third electrode is parallel to a portion of the trace of the first end of the second electrode, and the projection of the first end trace of the third electrode in the first direction overlaps with the projection of the first end trace of the second electrode in the first direction. Here, the first end trace of the first electrode, the first end trace of the second electrode, and the first end trace of the third electrode respectively correspond to Figure 4 The traces of electrode RXn, electrode RX(n+1) and electrode RX(n+2) are shown in the table.

[0066] Understandably, the touch panel 10 increases the capacitance between the traces of the first electrode and the first end trace of the second electrode by adding a projection of the first end trace of the second electrode to the second end trace of the first electrode, which overlaps with the first end trace of the second electrode. This is a capacitance compensation method between the traces. Furthermore, since the channel spacing between any two adjacent touch channels in this embodiment is the same, the capacitance between the first electrode and its trace and the second electrode and its first end trace is increased and becomes close to the capacitance between the second electrode and its first end trace and the third electrode and its first end trace. This improves the jitter problem caused by the opposite wiring direction of the first end traces of two electrodes of the same type in two adjacent touch channels when the user draws lines on the touch panel 10 with a capacitive stylus, thereby improving the accuracy of the capacitive stylus drawing and enhancing the user experience.

[0067] In another optional embodiment, the plurality of touch channels are located on the same plane parallel to the bottom surface of the touch panel 10, and the plurality of touch channels further includes a third touch channel, which is adjacent to the second touch channel. The first channel spacing between the first touch channel and the second touch channel is smaller than the second channel spacing between the second touch channel and the third touch channel.

[0068] Understandably, by shortening the spacing between the first channel, the inter-plate spacing between the first electrode and the second electrode is shortened, thereby increasing the capacitance value between the first electrode and the second electrode. This makes the capacitance value between the first electrode and its first end trace and the second electrode and its first end trace close to the capacitance value between the second electrode and its first end trace and the third electrode and its first end trace. This improves the jitter problem caused by the opposite wiring direction of the first end traces of two similar electrodes in two adjacent touch channels when the user draws lines on the touch panel 10 with a capacitive stylus, thereby improving the accuracy of the capacitive stylus and enhancing the user experience of using the capacitive stylus.

[0069] In another alternative embodiment, the vertical projection of the first touch channel on the bottom surface of the touch panel and the vertical projection of the second touch channel on the bottom surface of the touch panel have an overlapping area.

[0070] Understandably, by increasing the area of ​​the face-to-face interaction between the channels, the area of ​​the face-to-face interaction between the first electrode and the second electrode is increased, thereby increasing the capacitance value between the first electrode and the first end trace and the second electrode and the first end trace. This makes the capacitance value between the first electrode and the first end trace and the second electrode and the first end trace close to the capacitance value between the second electrode and the first end trace and the third electrode and the first end trace. This improves the jitter problem caused by the opposite wiring direction of the first end traces of the two similar electrodes in the two adjacent touch channels when the user draws a line on the touch panel 10 with a capacitive stylus, thereby improving the accuracy of the capacitive stylus drawing and enhancing the user experience of using the capacitive stylus.

[0071] In summary, this application can improve the jitter problem caused by the opposite wiring direction of the first ends of two electrodes of the same type in two adjacent touch channels when the user draws lines on the touch panel 10 with a capacitive stylus by means of capacitance compensation between wirings, shortening the spacing between the first channels, or increasing the facing area between channels. This improves the accuracy of drawing lines with the capacitive stylus and enhances the user experience of using the capacitive stylus.

[0072] It should be noted that in this application, the electrodes of the touch channel can be led outwards by means of overlapping metal. Specifically, this application adopts a design in which both ends of the overlapping metal have electrical connections, and there is an adjacent position relationship between the trace channel and the trace channels of the two electrodes corresponding to the two adjacent touch channels. This adjacent position relationship can be left and right or up and down.

[0073] For example, see Figure 6a , Figure 6a This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application. For example... Figure 6aAs shown, the touch panel includes a touch area A and a trace area B located outside the touch area A and along the edge of the touch area A, wherein:

[0074] The touch area A is provided with multiple touch channels arranged at intervals and extending along a first direction X, namely, first touch channel A1, second touch channel A2, third touch channel A3, ..., nth touch channel An. First touch channel A1 and second touch channel A2 are adjacent, and second touch channel A2 and third touch channel A3 are adjacent. First touch channel A1 includes multiple first electrodes, such as first electrode TX11, first electrode TX12, ..., and first electrode TX1m; second touch channel A2 includes multiple second electrodes, such as second electrode TX21, second electrode TX22, ..., and second electrode TX2m; third touch channel A3 includes multiple third electrodes, such as third electrode TX31, third electrode TX32, ..., and third electrode TX3m. In other words, the first electrodes TX11, TX12, ..., and TX1m, extending along the first direction X, constitute touch channel A1; the second electrodes TX21, TX22, ..., and TX2m, also extending along the first direction X, constitute touch channel A2; and so on, resulting in (n-2) other touch channels extending along the first direction X. Each of the first to third electrodes consists of two white triangular regions connected by a bridge. The first, second, and third electrodes are of the same type and can be either transmitting or receiving electrodes. This embodiment uses the example where the first, second, and third electrodes are all transmitting electrodes.

[0075] The wiring area B is marked with thick black lines representing the first end trace TX11_trace1 of the first electrode TX11, the first end trace TX21_trace1 of the second electrode TX21, and the first end trace TX31_trace1 of the third electrode TX31, as well as thick gray lines representing the second end trace TX11_trace2 of the first electrode TX11. The first end traces TX11_trace1 of the first electrode TX11, TX21_trace1 of the second electrode TX21, and TX31_trace1 of the third electrode TX31 are all used to connect to the controller 101 of the touch panel 10. The second end trace TX11_trace2 of the first electrode TX11 is not connected to the controller 101 and is in a floating state. It should be noted that the position of the controller 101 in the planar structural diagram of the touch panel 10 in this application does not represent the specific position of the controller 101 in the actual touch panel. In practical applications, the controller 101 is typically positioned in the middle area of ​​the back of the touch panel 10 to facilitate the connection between the electrode traces and the controller 101. Furthermore, in this application, the touch panel 10 and the display screen 1 on which the touch panel 10 is located can share the same controller, or two independent controllers can be used respectively; this application does not impose any restrictions on this. Optionally, a terminal area can also be provided in the area between the touch area A and the controller 101, where the first-end traces of the aforementioned electrodes converge and connect to the controller 101.

[0076] The vertical projection of the second end trace TX11_trace2 of the first electrode TX11 onto the bottom surface of the touch panel 10 does not overlap with the vertical projection of the first end trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10. In this embodiment, the vertical projection of the second end trace TX11_trace2 of the first electrode TX11 onto the bottom surface of the touch panel 10 is located to the left of the vertical projection of the first end trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10. Specifically, the second end trace TX11_trace2 of the first electrode TX11 can be located directly to the left, below the left, or above the left of the first end trace TX21_trace1 of the second electrode TX21. Optionally, the vertical projection of the second end trace TX11_trace2 of the first electrode TX11 onto the bottom surface of the touch panel 10 is located to the right of the vertical projection of the first end trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10. Specifically, the second terminal trace TX11_trace2 of the first electrode TX11 can be located to the right, above the right, or below the right of the first terminal trace TX21_trace1 of the second electrode TX21.

[0077] A portion of the trace in the first end trace TX11_trace1 of the first electrode TX11 is parallel to a portion of the trace in the first end trace TX21_trace1 of the second electrode TX21. For example, segments a11 to a12 of the first end trace TX11_trace1 of the first electrode TX11 are parallel to segments b1 to b2 of the first end trace TX21_trace1 of the second electrode TX21. Furthermore, the projections of the first end trace TX11_trace1 of the first electrode TX11 and the first end trace TX21_trace1 of the second electrode TX21 in the first direction X do not overlap.

[0078] A portion of the trace in the second end trace TX11_trace2 of the first electrode TX11 is parallel to a portion of the trace in the first end trace TX21_trace1 of the second electrode TX21. For example, segments a21 to a22 of the second end trace TX11_trace2 of the first electrode TX11 are parallel to segments b1 to b2 of the first end trace TX21_trace1 of the second electrode TX21. Segments a22 to a23 of the second end trace TX11_trace2 of the first electrode TX11 are parallel to segments b2 to b3 of the first end trace TX21_trace1 of the second electrode TX21. Furthermore, the projection of the second end trace TX11_trace2 of the first electrode TX11 onto the first direction X overlaps with the projection of the first end trace TX21_trace1 of the second electrode TX21 onto the first direction X.

[0079] A portion of the trace in the first end trace TX31_trace1 of the third electrode TX31 is parallel to a portion of the trace in the first end trace TX21_trace1 of the second electrode TX21. For example, segments c1 to c2 of the first end trace TX31_trace1 of the third electrode TX31 are parallel to segments b1 to b2 of the first end trace TX21_trace1 of the second electrode TX21. Furthermore, the projection of the first end trace TX31_trace1 of the third electrode TX31 onto the first direction X overlaps with the projection of the first end trace TX21_trace1 of the second electrode TX21 onto the first direction X.

[0080] The projection of the second end trace TX11_trace2 of the first electrode TX11 onto the first end trace TX21_trace1 of the second electrode TX21 overlaps with the first end trace TX21_trace1 of the second electrode TX21. Specifically, the projection of the second end trace TX11_trace2 onto the first end trace TX21_trace1 of the second electrode TX21 is the line connecting the two projection points obtained by perpendicularly projecting the start and end points of the second end trace TX11_trace2 onto the first end trace TX21_trace1 of the second electrode TX21. It should be noted that since the traces at either end of the electrode may not always follow the same direction, in such cases, the projection of the second end trace TX11_trace2 onto the first end trace TX21_trace1 of the second electrode TX21 can be performed in segments. Specifically, the projection of the second end trace TX11_trace2 of the first electrode TX11 onto the first end trace TX21_trace1 of the second electrode TX21 is composed of the projections of the a21 to a22 segments of the second end trace TX11_trace2 onto the b1 to b2 segments of the first end trace TX21_trace1 of the second electrode TX21, and the projections of the a22 to a23 segments of the second end trace TX11_trace2 onto the b2 to b3 segments of the first end trace TX21_trace1 of the second electrode TX21.

[0081] Furthermore, in this embodiment, the projection of the second end trace TX11_trace2 of the first electrode TX11 onto the first end trace TX21_trace1 of the second electrode TX21, and the length of the overlapping portion with the first end trace TX21_trace1 of the second electrode TX21, are positively correlated with the capacitance value between the trace of the first electrode and the first end trace TX21_trace1 of the second electrode TX21. Based on this, the capacitance value between the overlapping portion on the second end trace TX11_trace2 of the first electrode and the overlapping portion on the first end trace TX21_trace1 of the second electrode TX21 can be set to the capacitance value between the first end trace TX21_trace1 of the second electrode TX21 and the first end trace TX31_trace1 of the third electrode TX31, so that the capacitance value between the first electrode and its trace and the second electrode and its first end trace is equal to the capacitance value between the second electrode and its first end trace and the third electrode and its first end trace. In this application, the first and second end traces of the electrode are used to transmit the voltage signal of the touch channel where the electrode is located to the controller 101, so that the controller 101 can subsequently determine the coordinates of the contact position between the stylus and the touch panel 10 based on the voltage signal of each touch channel in the touch area A.

[0082] It should be noted that the first end and the second end of the first electrode can be the same end, that is, the second end of the first electrode is the first end of the first electrode. Please refer to [link to relevant documentation] for details. Figure 6b The diagram shows a planar structure of the touch panel.

[0083] To further illustrate Figure 6a and Figure 6b The positional relationship between the second terminal trace TX11_trace2 of the first electrode TX11 and the first terminal trace TX21_trace1 of the second electrode TX21 is described below in conjunction with... Figure 7 The cross-sectional structure of the touch panel is illustrated below. Specifically, the touch panel is cut along the wiring area where c1 to c2 is located, using a plane perpendicular to the bottom surface of the touch panel 10 and parallel to the first direction X as the cross-section. Figure 7 The diagram shows a cross-sectional view of the touch panel. Figure 7As shown in (a), the touch panel 10 includes a substrate 102, a first wiring layer M1, and a second wiring layer M2. The second terminal wiring TX11_trace2 of the first electrode TX11, the first terminal wiring TX21_trace1 of the second electrode TX21, and the first terminal wiring TX31_trace1 of the third electrode TX31 are all located in the wiring layer M composed of the first wiring layer M1 and the second wiring layer M2. Thus, it can be seen that the second terminal wiring TX11_trace2 of the first electrode TX11, the first terminal wiring TX21_trace1 of the second electrode TX21, and the first terminal wiring TX31_trace1 of the third electrode TX31 all adopt a double-layer wiring structure. The second end trace TX11_trace2 of the first electrode TX11 is located directly to the left of the first end trace TX21_trace1 of the second electrode TX21, and the first end trace TX31_trace1 of the third electrode TX31 is located directly to the right of the first end trace TX21_trace1 of the second electrode TX21. Furthermore, the vertical projection of the second end trace TX11_trace2 of the first electrode TX11 on the bottom surface of the touch panel 10 (i.e., the bottom surface of the substrate 102) does not overlap with the vertical projection of the first end trace TX21_trace1 of the second electrode TX21 on the bottom surface of the substrate 102.

[0084] It should be noted that, Figure 7 The cross-sectional schematic diagram of the touch panel shown in (a) illustrates the example with double-layered electrode traces. Optionally, the electrode traces in this application can be double-layered, single-layered, or a combination of both. Specifically, the first-end traces of all electrodes are double-layered, while the second-end trace TX11_trace2 of the first electrode TX11 is single-layered; both the first-end traces of all electrodes and the second-end trace TX11_trace2 of the first electrode TX11 are single-layered. For example, as shown... Figure 7 As shown in (b), the second terminal trace TX11_trace2 of the first electrode TX11 uses a single-layer trace, while the first terminal trace TX21_trace1 of the second electrode TX21 and the first terminal trace TX31_trace1 of the third electrode TX31 both use double-layer traces. Figure 7 As shown in (c), the second end trace TX11_trace2 of the first electrode TX11, the first end trace TX21_trace1 of the second electrode TX21, and the first end trace TX31_trace1 of the third electrode TX31 all use single-layer traces.

[0085] based on Figure 7 It can be seen that, Figure 7In the touch panel 10 shown in (a), the second terminal trace TX11_trace2 of the first electrode TX11 uses the same double-layer trace as the first terminal trace TX21_trace1 of the second electrode TX21. Figure 7 Compared with the single-layer routing scheme of the second end trace TX11_trace2 of the first electrode TX11 in the touch panel 10 shown in (b), which is different from the first end trace TX21_trace1 of the second electrode TX21, the facing area between the second end trace TX11_trace2 of the first electrode TX11 and the first end trace TX21_trace1 of the second electrode TX21 can be increased as much as possible, which is more conducive to the compensation of capacitance value between traces. Figure 7 As shown in (c), the traces in the touch panel 10 all adopt a single-layer trace structure, which is beneficial for the thinner and lighter design of the touch panel 10 and the reduction of the cost of the touch panel 10. Furthermore, currently, the traces in the touch panel 10 mainly adopt a double-layer trace structure; therefore, Figure 7 The applicability of the touch panels 10 shown in (a) to (c) is ranked from strongest to weakest as follows: Figure 7 The touch panel 10 shown in (a) Figure 7 The touch panel 10 shown in (b) and Figure 7 The touch panel 10 shown in (c) is shown in the middle.

[0086] In this embodiment, the touch panel 10 increases the capacitance between the trace of the first electrode and the trace of the first electrode TX21_trace1 by adding a second trace of the first electrode TX11_trace2, which overlaps with the projection of the first trace of the second electrode TX21_trace1 on the left or right side of the first trace of the second electrode TX21_trace1, to the left or right side of the first trace of the second electrode TX21_trace1. This is a method of inter-trace capacitance compensation. Furthermore, since the channel spacing between any two adjacent touch channels in this embodiment is the same, the capacitance value between the first electrode and its trace and the second electrode and its first end trace is increased and becomes close to the capacitance value between the second electrode and its first end trace and the third electrode and its first end trace. This improves the jitter problem caused by the opposite wiring direction of the first end traces of two electrodes of the same type in two adjacent touch channels when the user draws a line on the touch panel 10 with a capacitive stylus, thereby improving the accuracy of the capacitive stylus drawing and enhancing the user's experience of using the capacitive stylus.

[0087] For example, see Figure 8a , Figure 8a This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application. For example... Figure 8a As shown, Figure 8a The touch panel 10 shown is Figure 6a Compared to the touch panel 10 shown, Figure 8a The position of the second end trace TX11_trace2 of the first electrode TX11 shown is... Figure 6a The position of the second terminal trace TX11_trace2 of the first electrode TX11 shown is different. Specifically, the vertical projection of the second terminal trace TX11_trace2 of the first electrode TX11 on the bottom surface of the touch panel 10 overlaps with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 on the bottom surface of the touch panel 10. In this embodiment, the vertical projection of the second terminal trace TX11_trace2 of the first electrode TX11 on the bottom surface of the touch panel 10 is located below the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 on the bottom surface of the touch panel 10. Specifically, while ensuring that the vertical projections of the second terminal trace TX11_trace2 of the first electrode TX11 and the first terminal trace TX21_trace1 of the second electrode TX21 overlap on the bottom surface of the touch panel 10, in a direction perpendicular to the bottom surface of the touch panel 10, the second terminal trace TX11_trace2 of the first electrode TX11 can be located directly below, to the lower left, or to the lower right of the first terminal trace TX21_trace1 of the second electrode TX21. Optionally, the vertical projection of the second terminal trace TX11_trace2 of the first electrode TX11 on the bottom surface of the touch panel 10 is located above the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 on the bottom surface of the touch panel 10. Specifically, while ensuring that the vertical projections of the second end trace TX11_trace2 of the first electrode TX11 and the first end trace TX21_trace1 of the second electrode TX21 on the bottom surface of the touch panel 10 overlap, the second end trace TX11_trace2 of the first electrode TX11 can be located directly above, to the upper left or to the upper right of the first end trace TX21_trace1 of the second electrode TX21 in a direction perpendicular to the bottom surface of the touch panel 10.

[0088] In this embodiment, for a description of the other parts of the touch panel 10 besides the location of the second terminal trace TX11_trace2 of the first electrode TX11, please refer to [link to relevant documentation]. Figure 6a The description of the corresponding part of the touch panel 10 shown will not be repeated here.

[0089] It should be noted that the first end and the second end of the first electrode can be the same end, that is, the second end of the first electrode is the first end of the first electrode. Please refer to [link to relevant documentation] for details. Figure 8bThe diagram shows a planar structure of the touch panel 10.

[0090] To further illustrate Figure 8a and Figure 8b The positional relationship between the second terminal trace TX11_trace2 of the first electrode TX11 and the first terminal trace TX21_trace1 of the second electrode TX21 is described below in conjunction with... Figure 9 The diagram showing the cross-sectional structure of the touch panel is provided for illustration.

[0091] Specifically, taking a plane perpendicular to the bottom surface of the touch panel 10 and parallel to the first direction X as a cross-section, and cutting the touch panel in the region that simultaneously includes the second end trace TX11_trace2 of the first electrode TX11, the first end trace TX21_trace1 of the second electrode TX21, and the first end trace TX31_trace1 of the third electrode TX31, we obtain... Figure 9 The diagram shows a cross-sectional view of the touch panel, as shown in (a). Figure 9 As shown in (a), the touch panel 10 includes a substrate 102, a first wiring layer M1, and a second wiring layer M2. The second end wiring TX11_trace2 of the first electrode TX11 is located in the first wiring layer M1, the first end wiring TX21_trace1 of the second electrode TX21 is located in the second wiring layer M2, and the first end wiring TX31_trace1 of the third electrode TX31 is located in both the first and second wiring layers M1 and M2. Specifically, in the direction perpendicular to the bottom surface of the substrate 102, the second end wiring TX11_trace2 of the first electrode TX11 is located below the first end wiring TX21_trace1 of the second electrode TX21, and the vertical projection of the second end wiring TX11_trace2 of the first electrode TX11 onto the bottom surface of the substrate 102 overlaps with the vertical projection of the first end wiring TX21_trace1 of the second electrode TX21 onto the bottom surface of the substrate 102.

[0092] Furthermore, by cutting the touch panel in a region that simultaneously contains the second end trace TX11_trace2 of the first electrode TX11 and the first end trace TX21_trace1 of the second electrode TX21, using a plane perpendicular to the bottom surface of the touch panel 10 and parallel to the second direction Y as a cross-section, the following is obtained: Figure 9 The cross-sectional structure of the touch panel is shown in (b) above. Figure 9As shown in (b), the second end trace TX11_trace2 of the first electrode TX11 and the first end trace TX21_trace1 of the second electrode TX21 are both located in the trace layer M composed of the first trace layer M1 and the second trace layer M2. Furthermore, the vertical projection of the second end trace TX11_trace2 of the first electrode TX11 on the bottom surface of the substrate 102 overlaps with the vertical projection of the first end trace TX21_trace1 of the second electrode TX21 on the bottom surface of the substrate 102.

[0093] In this embodiment, the touch panel 10 increases the capacitance between the trace of the first electrode and the first trace of the second electrode TX21 by adding a second trace of the first electrode TX11_trace2, which overlaps with the projection of the first trace of the second electrode TX21_trace1 on the first trace of the second electrode TX21, above or below the first trace of the second electrode TX21_trace1. This is a method of inter-trace capacitance compensation. Furthermore, since the channel spacing between any two adjacent touch channels in this embodiment is the same, the capacitance value between the first electrode and its trace and the second electrode and its first end trace is increased and becomes close to the capacitance value between the second electrode and its first end trace and the third electrode and its first end trace. This improves the jitter problem caused by the opposite wiring direction of the first end traces of two electrodes of the same type in two adjacent touch channels when the user draws a line on the touch panel 10 with a capacitive stylus, thereby improving the accuracy of the capacitive stylus drawing and enhancing the user's experience of using the capacitive stylus.

[0094] See Figure 10 , Figure 10 This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application. For example... Figure 10 As shown, the touch panel includes a touch area A and a trace area B located outside the touch area A and along the edge of the touch area A. Wherein:

[0095] Touch area A has multiple touch channels arranged at intervals, extending along the first direction X, and located on the same plane parallel to the bottom surface of touch panel 10, namely, first touch channel A1, second touch channel A2, third touch channel A3, ..., nth touch channel An. Wiring area B has the first end trace TX11_trace1 of the first electrode TX11, the first end trace TX21_trace1 of the second electrode TX21, and the first end trace TX31_trace1 of the third electrode TX31, indicated by thick black lines. For a detailed description of each of the above n touch channels, the first end trace TX11_trace1 of the first electrode TX11, the first end trace TX21_trace1 of the second electrode TX21, and the first end trace TX31_trace1 of the third electrode TX31, please refer to [link to relevant documentation]. Figure 6a The description of the corresponding parts of the touch panel 10 will not be repeated here.

[0096] The first channel spacing d between the first touch channel A1 and the second touch channel A2 is less than the second channel spacing D between the second touch channel A2 and the third touch channel A3.

[0097] The size of the first channel spacing d is determined by the capacitance value between the first terminal trace TX31_trace1 of the third electrode TX31 and the first terminal trace TX21_trace1 of the second electrode TX21. Specifically, the size of the first channel spacing d is determined by the capacitance values ​​C2'-C11', where C2' is the capacitance value between the second electrode TX21 and its first terminal trace TX21_trace1 and the third electrode TX31 and its first terminal trace TX31_trace1, that is, the sum of the capacitance value C21' between the first terminal trace TX21_trace1 of the second electrode TX21 and the first terminal trace TX31_trace1 of the third electrode TX31, and the capacitance value C22' between the second electrode TX21 and the third electrode TX31. C11' is the capacitance value between the first terminal trace TX11_trace1 of the first electrode TX11 and the first terminal trace TX21_trace1 of the second electrode TX21.

[0098] The first channel spacing d is negatively correlated with the capacitance value C2'-C11'. Based on this, the capacitance value corresponding to the first channel spacing d can be set to C2'-C11', so that the capacitance value between the first electrode and its first end trace and the second electrode and its first end trace is equal to the capacitance value between the second electrode and its first end trace and the third electrode and its first end trace.

[0099] In this embodiment, the touch panel 10 shortens the inter-plate spacing between the first electrode and the second electrode by shortening the first channel spacing, thereby increasing the capacitance value between the first electrode and the second electrode. This increases the capacitance value between the first electrode and its first end trace and the second electrode and its first end trace, making it close to the capacitance value between the second electrode and its first end trace and the third electrode and its first end trace. This improves the jitter problem caused by the opposite wiring direction of the first end traces of two similar electrodes in two adjacent touch channels when the user draws lines on the touch panel 10 with a capacitive stylus, thereby improving the accuracy of the capacitive stylus drawing and enhancing the user's experience of using the capacitive stylus.

[0100] See Figure 11 , Figure 11 This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application. For example... Figure 11 As shown, the touch panel includes a touch area A and a trace area B located outside the touch area A and along the edge of the touch area A. Wherein:

[0101] The touch area A is provided with multiple touch channels arranged at intervals and extending along the first direction X, namely, the first touch channel A1, the second touch channel A2, the third touch channel A3, ..., the nth touch channel An. The first touch channel A1 and the third touch channel A3 are both adjacent to the second touch channel A2. The first touch channel A1 includes multiple first electrodes, such as first electrode TX11, first electrode TX12, ...; the second touch channel A2 includes multiple second electrodes, such as second electrode TX21, second electrode TX22, ...; the third touch channel A3 includes multiple third electrodes, such as third electrode TX31, third electrode TX32, ... The first, second, and third electrodes are electrodes of the same type. In this embodiment, it is described using the example that the first, second, and third electrodes are all transmitting electrodes.

[0102] The touch area A is also provided with multiple touch channels arranged at intervals and extending along the second direction Y, namely, the first touch channel C1, the second touch channel C2, ..., the m-th touch channel Cm. The first direction X is perpendicular to the second direction Y. Each of the m touch channels from the first touch channel C1 to the second touch channel Cm includes multiple receiving electrodes. For example, the first touch channel C1 includes multiple receiving electrodes, such as receiving electrodes RX11, ..., and receiving electrodes RX1n. In other words, the receiving electrodes RX11, ..., and RX1n distributed along the second direction Y constitute touch channel C1, and so on, to obtain the other (m-1) touch channels extending along the second direction Y. The above-mentioned receiving electrodes correspond to... Figure 11The gray area is an hourglass shape as shown. This application does not limit the specific shapes of the receiving and transmitting electrodes. Furthermore, the n touch channels extending along the first direction X and the m touch channels extending along the second direction Y are all located in the same plane.

[0103] The wiring area B is provided with the first end wiring TX11_trace1 of the first electrode TX11, the first end wiring TX21_trace1 of the second electrode TX21, and the first end wiring TX31_trace1 of the third electrode TX31. The first end wiring TX11_trace1 of the first electrode TX11, the first end wiring TX21_trace1 of the second electrode TX21, and the first end wiring TX31_trace1 of the third electrode TX31 are all used to connect to the controller 101 of the touch panel 10.

[0104] A portion of the trace in the first terminal trace TX11_trace1 of the first electrode TX11 is parallel to a portion of the trace in the first terminal trace TX21_trace1 of the second electrode TX21. The vertical projection of the first terminal trace TX11_trace1 of the first electrode TX11 onto the bottom surface of the touch panel 10 does not overlap with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10. A portion of the trace in the first terminal trace TX31_trace1 of the third electrode TX31 is parallel to a portion of the trace in the first terminal trace TX21_trace1 of the second electrode TX21. The vertical projection of the first terminal trace TX31_trace1 of the third electrode TX31 onto the bottom surface of the touch panel 10 overlaps with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10.

[0105] The second touch channel A2 consists of two parts: touch channel A21 and touch channel A22. Touch channel A21, along with the first touch channel A1, the third touch channel A3, ..., and the nth touch channel An, lies in the same plane parallel to the bottom surface of the touch panel 10. Touch channel A22 is located below the plane containing the first touch channel A1 and touch channel A21, and the vertical projection of touch channel A22 onto the bottom surface of the touch panel 10 overlaps with the vertical projection of the first touch channel A1 onto the bottom surface of the touch panel 10. Specifically, touch channel A22 is obtained by extending touch channel A21 below the first touch channel A1 through a perforation. Optionally, touch channel A22 can also be located above the plane containing the first touch channel A1 and touch channel A21.

[0106] The area of ​​the aforementioned overlapping region is determined by the capacitance value between the first terminal trace TX21_trace1 of the second electrode TX21 and the first terminal trace TX31_trace1 of the third electrode TX31. Specifically, the area of ​​the overlapping region is determined by the capacitance values ​​C2'-C11', where C2' is the capacitance value between the second electrode and its first terminal trace and the third electrode and its first terminal trace, i.e., the capacitance value C21' between the first terminal trace TX21_trace1 of the second electrode TX21 and the first terminal trace TX31_trace1 of the third electrode TX31, and the capacitance value C22' between the second and third electrodes. C11' is the capacitance value between the first terminal trace TX11_trace1 of the first electrode TX11 and the first terminal trace TX21_trace1 of the second electrode TX21.

[0107] The area of ​​the overlapping region is positively correlated with the capacitance value C2'-C11'. Based on this, the capacitance value corresponding to the area of ​​the overlapping region can be set to C2'-C11', so that the capacitance value between the first electrode TX11 and its first terminal trace TX11_trace1 and the second electrode TX21 and its first terminal trace TX21_trace1 is equal to the capacitance value between the second electrode TX21 and its first terminal trace TX21_trace1 and the third electrode TX31 and its first terminal trace TX31_trace1.

[0108] To further illustrate Figure 11 The positional relationship between the first touch channel A1 and the second touch channel A2 is described below in conjunction with... Figure 12 The cross-sectional structure of the touch panel is illustrated below. Specifically, after cutting the touch panel 10 in a region containing the aforementioned n touch channels, a cross-section is obtained using a plane perpendicular to the bottom surface of the touch panel 10 and parallel to the second direction Y as the cross-section. Figure 12 A schematic diagram of the cross-sectional structure of the touch panel shown in (a). Figure 12 As shown in (a), the touch panel 10 includes a substrate 102, a first wiring layer M1, and a second wiring layer M2. The first touch channel A1, touch channel A21, the third touch channel A3, ..., and the nth touch channel An are all located in the second wiring layer M2, and touch channel A22 is located in the first wiring layer M1. Specifically, in a direction perpendicular to the bottom surface of the substrate 102, a portion of touch channel A22 is located below the first touch channel A1, and the vertical projection of the first touch channel A1 onto the bottom surface of the substrate 102 overlaps with the vertical projection of touch channel A22 onto the bottom surface of the substrate 102.

[0109] It should be noted that in practical applications, a symmetrical extension method is typically used to increase the area directly opposite each other between channels. Please refer to [link / reference needed] for details. Figure 12(b) in the example Figure 12 As shown in (b), the second touch channel includes not only touch channel A22 extending below the first touch channel A1, but also touch channel A23 extending below the third touch channel A3.

[0110] In this embodiment, the touch panel 10 increases the facing area between the channels by extending one of the first touch channel A1 and the second touch channel A2 above or below the other of the two touch channels. This increases the facing area between the first electrode TX11 and the second electrode TX21, thereby increasing the capacitance between them. Consequently, the capacitance between the first electrode TX11 and its first end trace TX11_trace1 and the second electrode TX21 and its first end trace TX21_trace1 increases and approaches the capacitance between the second electrode TX21 and its first end trace TX21_trace1 and the third electrode TX31 and its first end trace TX31_trace1. This improves the jitter problem caused by the opposite wiring direction of the first end traces of two electrodes of the same type in two adjacent touch channels when the user draws lines on the touch panel 10 with a capacitive stylus, thereby improving the accuracy of the capacitive stylus and enhancing the user experience.

[0111] Furthermore, this application can also improve the jitter problem caused by the opposite wiring direction of the first ends of two electrodes of the same type in two adjacent touch channels when the capacitive stylus draws lines on the touch panel 10 by combining the wiring capacitance compensation method and the shortening of the first channel spacing method, or by combining the wiring capacitance compensation method and the increasing of the facing area between channels.

[0112] Since the working principle of the touch panel 10 remains the same regardless of whether the vertical projection of the second terminal trace TX11_trace2 of the first electrode TX11 on the bottom surface of the touch panel 10 overlaps with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 on the bottom surface of the touch panel 10, for ease of explanation, the following explanation will be based on the example where the vertical projection of the second terminal trace TX11_trace2 of the first electrode TX11 on the bottom surface of the touch panel 10 does not overlap with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 on the bottom surface of the touch panel 10.

[0113] For example, see Figure 13 , Figure 13 This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application. For example... Figure 13As shown, the touch panel includes a touch area A and a trace area B located outside the touch area A and along the edge of the touch area A. Wherein:

[0114] The touch area A has multiple touch channels arranged at intervals and extending along a first direction X, namely, a first touch channel A1, a second touch channel A2, a third touch channel A3, ..., an nth touch channel An. The first touch channel A1 and the second touch channel A2 are adjacent, and the second touch channel A2 and the third touch channel A3 are adjacent. The first channel spacing d between the first touch channel A1 and the second touch channel A2 is smaller than the second channel spacing D between the second touch channel A2 and the third touch channel.

[0115] The wiring area B includes the first terminal trace TX11_trace1 of the first electrode TX11, the first terminal trace TX21_trace1 of the second electrode TX21, and the first terminal trace TX31_trace1 of the third electrode TX31, all represented by thick black lines, as well as the second terminal trace TX11_trace2, represented by thick gray lines. The first terminal traces TX11_trace1 of the first electrode TX11, TX21_trace1 of the second electrode TX21, and TX31_trace1 of the third electrode TX31 are all used to connect to the controller 101. The vertical projection of the second terminal trace TX11_trace2 of the first electrode TX11 onto the bottom surface of the touch panel 10 does not overlap with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10.

[0116] A portion of the trace in the first terminal trace TX11_trace1 of the first electrode TX11 is parallel to a portion of the trace in the first terminal trace TX21_trace1 of the second electrode TX21. The vertical projection of the first terminal trace TX11_trace1 of the first electrode TX11 onto the bottom surface of the touch panel 10 does not overlap with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10. A portion of the trace in the second terminal trace TX11_trace2 of the first electrode TX11 is parallel to a portion of the trace in the first terminal trace TX21_trace1 of the second electrode TX21. The vertical projection of the second terminal trace TX11_trace2 of the first electrode TX11 onto the bottom surface of the touch panel 10 overlaps with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10. A portion of the trace in the first terminal trace TX31_trace1 of the third electrode TX31 is parallel to a portion of the trace in the first terminal trace TX21_trace1 of the second electrode TX21. The vertical projection of the first terminal trace TX31_trace1 of the third electrode TX31 onto the bottom surface of the touch panel 10 overlaps with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10. The projection of the second terminal trace TX11_trace2 of the first electrode TX11 onto the first terminal trace TX21_trace1 of the second electrode TX21 also overlaps with the first terminal trace TX21_trace1 of the second electrode TX21.

[0117] In this embodiment, the projection of the second end trace TX11_trace2 of the first electrode TX11 onto the first end trace TX21_trace1 of the second electrode TX21, the capacitance value corresponding to the length of the overlapping portion with the first end trace TX21_trace1 of the second electrode TX21, and the capacitance value corresponding to the first channel spacing d, constitute the capacitance value between the second electrode and its first end trace and the third electrode and its first end trace. Specifically, the capacitance value corresponding to the length of the overlapping trace is the capacitance value between the trace of the first electrode and the first end trace TX21_trace1 of the second electrode TX21, and the capacitance value corresponding to the first channel spacing d is the capacitance value between the first electrode and the second electrode.

[0118] The capacitance value corresponding to the length of the aforementioned overlapping portion and the capacitance value corresponding to the first channel spacing d can be obtained by allocating the capacitance values ​​between the second electrode and its first end trace and the third electrode and its first end trace according to a preset capacitance value allocation ratio. Furthermore, since the length of the aforementioned overlapping portion is positively correlated with its corresponding capacitance value, and the first channel spacing d is negatively correlated with its corresponding capacitance value, the length of the aforementioned overlapping portion and the first channel spacing d can be obtained based on these two values.

[0119] Furthermore, for the parts of the touch panel 10 that are not specifically expanded in this embodiment, please refer to [link to relevant documentation]. Figure 6a and Figure 10 The description of the corresponding part of the touch panel 10 shown will not be repeated here.

[0120] In this embodiment, the touch panel 10 increases the capacitance between the trace of the first electrode and the first end trace TX21_trace1 of the second electrode TX21 by combining the method of inter-trace capacitance compensation and the method of shortening the first channel spacing. It also increases the capacitance between the first electrode and the second electrode. This increases the capacitance between the first electrode and its trace and the second electrode and its first end trace, making it close to the capacitance between the second electrode and its first end trace and the third electrode and its first end trace. This improves the jitter problem caused by the opposite wiring direction of the first end traces of two electrodes of the same type in two adjacent touch channels when the user draws lines on the touch panel 10 with a capacitive stylus. This improves the accuracy of the capacitive stylus drawing and enhances the user experience of using the capacitive stylus.

[0121] For example, see Figure 14 , Figure 14 This is another planar structural schematic diagram of the touch panel provided in the embodiments of this application. For example... Figure 14 As shown, the touch panel includes a touch area A and a trace area B located outside the touch area A and along the edge of the touch area A. Wherein:

[0122] The touch area A is provided with multiple touch channels arranged at intervals and extending along the first direction X, namely the first touch channel A1, the second touch channel A2, the third touch channel A3, ..., the nth touch channel An. The first touch channel A1 and the second touch channel A2 are adjacent to each other, and the second touch channel A2 and the third touch channel A3 are adjacent to each other.

[0123] The second touch channel A2 consists of two parts: touch channel A21 and touch channel A22. Touch channel A21, along with the first touch channel A1, the third touch channel A3, ..., and the nth touch channel An, lies in the same plane parallel to the bottom surface of the touch panel 10. Touch channel A22 is located below the plane containing the first touch channels A1 and A21, and the vertical projection of touch channel A22 onto the bottom surface of the touch panel 10 overlaps with the vertical projection of the first touch channel A1 onto the bottom surface of the touch panel 10. Optionally, touch channel A22 may also be located above the plane containing the first touch channels A1 and A21.

[0124] The touch area A is also provided with multiple touch channels arranged at intervals and extending along the second direction Y, namely the first touch channel C1, the second touch channel C2, ..., the m-th touch channel Cm. In addition, the n touch channels extending along the first direction X and the m touch channels extending along the second direction Y are all located in the same plane.

[0125] The wiring area B includes the first terminal trace TX11_trace1 of the first electrode TX11, the first terminal trace TX21_trace1 of the second electrode TX21, and the first terminal trace TX31_trace1 of the third electrode TX31, all represented by thick black lines, as well as the second terminal trace TX11_trace2, represented by thick gray lines. The first terminal traces TX11_trace1 of the first electrode TX11, TX21_trace1 of the second electrode TX21, and TX31_trace1 of the third electrode TX31 are all used to connect to the controller 101. The vertical projection of the second terminal trace TX11_trace2 of the first electrode TX11 onto the bottom surface of the touch panel 10 does not overlap with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10.

[0126] A portion of the trace in the first terminal trace TX11_trace1 of the first electrode TX11 is parallel to a portion of the trace in the first terminal trace TX21_trace1 of the second electrode TX21. The vertical projection of the first terminal trace TX11_trace1 of the first electrode TX11 onto the bottom surface of the touch panel 10 does not overlap with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10. A portion of the trace in the second terminal trace TX11_trace2 of the first electrode TX11 is parallel to a portion of the trace in the first terminal trace TX21_trace1 of the second electrode TX21. The vertical projection of the second terminal trace TX11_trace2 of the first electrode TX11 onto the bottom surface of the touch panel 10 overlaps with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10. A portion of the trace in the first terminal trace TX31_trace1 of the third electrode TX31 is parallel to a portion of the trace in the first terminal trace TX21_trace1 of the second electrode TX21. The vertical projection of the first terminal trace TX31_trace1 of the third electrode TX31 onto the bottom surface of the touch panel 10 overlaps with the vertical projection of the first terminal trace TX21_trace1 of the second electrode TX21 onto the bottom surface of the touch panel 10. The projection of the second terminal trace TX11_trace2 of the first electrode TX11 onto the first terminal trace TX21_trace1 of the second electrode TX21 also overlaps with the first terminal trace TX21_trace1 of the second electrode TX21.

[0127] In this embodiment, the projection of the second terminal trace TX11_trace2 of the first electrode TX11 onto the first terminal trace TX21_trace1 of the second electrode TX21, and the sum of the capacitance value corresponding to the length of the overlapping portion with the first terminal trace TX21_trace1 of the second electrode TX21 and the capacitance value corresponding to the area of ​​the overlapping region, constitute the capacitance value between the second electrode and its first terminal trace, and between the third electrode and its first terminal trace. Specifically, the capacitance value corresponding to the length of the overlapping portion is the capacitance value between the trace of the first electrode and the first terminal trace TX21_trace1 of the second electrode TX21, and the capacitance value corresponding to the area of ​​the overlapping region is the capacitance value between the first electrode and the second electrode.

[0128] The capacitance values ​​corresponding to the length of the overlapping portion and the capacitance values ​​corresponding to the area of ​​the overlapping region can be obtained by allocating the capacitance values ​​between the second electrode and its first-end trace and the third electrode and its first-end trace according to a preset capacitance value allocation ratio. Furthermore, since the length of the overlapping portion is positively correlated with its corresponding capacitance value, and the area of ​​the overlapping region is also positively correlated with its corresponding capacitance value, the length of the overlapping portion and the area of ​​the overlapping region can be obtained based on these values.

[0129] Furthermore, for the parts of the touch panel 10 that are not specifically expanded in this embodiment, please refer to [link / reference needed]. Figure 6a and Figure 11 The description of the corresponding part of the touch panel 10 shown will not be repeated here.

[0130] In this embodiment, the touch panel 10 increases the capacitance between the traces of the first electrode and the first end trace TX21_trace1 of the second electrode TX21 by combining the capacitance compensation between traces and the increase of the facing area between channels. It also increases the capacitance between the first electrode and the second electrode. This increases the capacitance between the first electrode and its traces and the second electrode and its first end traces, making it close to the capacitance between the second electrode and its first end traces and the third electrode and its first end traces. This improves the jitter problem caused by the opposite wiring direction of the first end traces of two similar electrodes in two adjacent touch channels when the user draws lines on the touch panel 10 with a capacitive stylus. This improves the accuracy of the capacitive stylus drawing and enhances the user experience of using the capacitive stylus.

[0131] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A touch panel, characterized in that, The touch panel includes a touch area and a trace area located outside the touch area and disposed along the edge of the touch area, wherein: The touch area is provided with a plurality of touch channels arranged at intervals and extending along a first direction. The plurality of touch channels include adjacent first touch channels and second touch channels. The first touch channel includes a first electrode, and the second touch channel includes a second electrode. The first electrode and the second electrode are electrodes of the same type. The wiring area is provided with a first end wiring and a second end wiring of a first electrode, and a first end wiring of a second electrode. Both the first end wiring of the first electrode and the first end wiring of the second electrode are used to connect to the controller of the touch panel. A portion of the first end wiring of the first electrode is parallel to a portion of the first end wiring of the second electrode. The projection of the first end wiring of the first electrode in the first direction does not overlap with the projection of the first end wiring of the second electrode in the first direction. A portion of the second end wiring of the first electrode is parallel to a portion of the first end wiring of the second electrode. The projection of the second end wiring of the first electrode in the first direction overlaps with the projection of the first end wiring of the second electrode in the first direction. The projection of the second end wiring of the first electrode onto the first end wiring of the second electrode overlaps with the first end wiring of the second electrode.

2. The touch panel according to claim 1, characterized in that, The vertical projection of the second end trace of the first electrode on the bottom surface of the touch panel does not overlap with the vertical projection of the first end trace of the second electrode on the bottom surface of the touch panel.

3. The touch panel according to claim 1, characterized in that, The vertical projection of the second end trace of the first electrode on the bottom surface of the touch panel overlaps with the vertical projection of the first end trace of the second electrode on the bottom surface of the touch panel.

4. The touch panel according to any one of claims 1-3, characterized in that, The plurality of touch channels are all located on the same plane parallel to the bottom surface of the touch panel. The plurality of touch channels also include a third touch channel, which is adjacent to the second touch channel. The first channel spacing between the first touch channel and the second touch channel is smaller than the second channel spacing between the second touch channel and the third touch channel.

5. The touch panel according to any one of claims 1-3, characterized in that, The vertical projection of the first touch channel on the bottom surface of the touch panel overlaps with the vertical projection of the second touch channel on the bottom surface of the touch panel.

6. The touch panel according to any one of claims 1-3, characterized in that, The plurality of touch channels also includes a third touch channel, which is adjacent to the second touch channel. The third touch channel includes a third electrode, which is of the same type as the second electrode. The wiring area is also provided with a first end wiring of the third electrode, which is used to connect to the controller. A portion of the first end wiring of the third electrode is parallel to a portion of the first end wiring of the second electrode. The projection of the first end wiring of the third electrode in the first direction overlaps with the projection of the first end wiring of the second electrode in the first direction. The length of the overlapping portion of the projection of the second end trace of the first electrode onto the first end trace of the second electrode and the first end trace of the second electrode is determined by the capacitance value between the first end trace of the third electrode and the first end trace of the second electrode.

7. The touch panel according to any one of claims 1-3, characterized in that, The second end of the first electrode has a single-layer or double-layer trace.

8. A touch panel, characterized in that, The touch panel includes a touch area and a trace area located outside the touch area and disposed along the edge of the touch area, wherein: The touch area is provided with a plurality of touch channels arranged at intervals, extending along a first direction and located on the same plane parallel to the bottom surface of the touch panel. The plurality of touch channels include a first touch channel, a second touch channel and a third touch channel. The first touch channel and the third touch channel are adjacent to the second touch channel. The first touch channel includes a first electrode and the second touch channel includes a second electrode. The first electrode and the second electrode are electrodes of the same type. The wiring area is provided with a first end wiring of a first electrode and a first end wiring of a second electrode. Both the first end wiring of the first electrode and the first end wiring of the second electrode are used to connect to the controller of the touch panel. A portion of the first end wiring of the first electrode is parallel to a portion of the first end wiring of the second electrode. The projection of the first end wiring of the first electrode in the first direction does not overlap with the projection of the first end wiring of the second electrode in the first direction. The first channel spacing between the first touch channel and the second touch channel is less than the second channel spacing between the second touch channel and the third touch channel.

9. The touch panel according to claim 8, characterized in that, The routing area also includes the second end routing of the first electrode. A portion of the second end routing of the first electrode is parallel to a portion of the first end routing of the second electrode. The projection of the second end routing of the first electrode in the first direction overlaps with the projection of the first end routing of the second electrode in the first direction. The projection of the second end routing of the first electrode onto the first end routing of the second electrode also overlaps with the first end routing of the second electrode.

10. The touch panel according to claim 9, characterized in that, The vertical projection of the second end trace of the first electrode on the bottom surface of the touch panel does not overlap with the vertical projection of the first end trace of the second electrode on the bottom surface of the touch panel.

11. The touch panel according to claim 9, characterized in that, The vertical projection of the second end trace of the first electrode on the bottom surface of the touch panel overlaps with the vertical projection of the first end trace of the second electrode on the bottom surface of the touch panel.

12. The touch panel according to any one of claims 8-11, characterized in that, The third touch channel includes a third electrode, which is of the same type as the second electrode. The wiring area is also provided with a first end wiring of the third electrode, which is used to connect to the controller. A portion of the first end wiring of the third electrode is parallel to a portion of the first end wiring of the second electrode. The projection of the first end wiring of the third electrode in the first direction overlaps with the projection of the first end wiring of the second electrode in the first direction. The first channel spacing is determined by the capacitance value between the first end trace of the third electrode and the first end trace of the second electrode.

13. A touch panel, characterized in that, The touch panel includes a touch area and a trace area located outside the touch area and disposed along the edge of the touch area, wherein: The touch area is provided with a plurality of touch channels arranged at intervals and extending along a first direction. The plurality of touch channels include adjacent first touch channels and second touch channels. The first touch channel includes a first electrode, and the second touch channel includes a second electrode. The first electrode and the second electrode are electrodes of the same type. The wiring area is provided with a first end wiring of the first electrode and a first end wiring of the second electrode. Both the first end wiring of the first electrode and the first end wiring of the second electrode are used to connect to the controller of the touch panel. A portion of the first end wiring of the first electrode is parallel to a portion of the first end wiring of the second electrode. The projection of the first end wiring of the first electrode in the first direction does not overlap with the projection of the first end wiring of the second electrode in the first direction. The vertical projection of the first touch channel on the bottom surface of the touch panel overlaps with the vertical projection of the second touch channel on the bottom surface of the touch panel.

14. The touch panel according to claim 13, characterized in that, The routing area also includes the second end routing of the first electrode. A portion of the second end routing of the first electrode is parallel to a portion of the first end routing of the second electrode. The projection of the second end routing of the first electrode in the first direction overlaps with the projection of the first end routing of the second electrode in the first direction. The projection of the second end routing of the first electrode onto the first end routing of the second electrode also overlaps with the first end routing of the second electrode.

15. The touch panel according to claim 14, characterized in that, The vertical projection of the second end trace of the first electrode on the bottom surface of the touch panel does not overlap with the vertical projection of the first end trace of the second electrode on the bottom surface of the touch panel.

16. The touch panel according to claim 14, characterized in that, The vertical projection of the second end trace of the first electrode on the bottom surface of the touch panel overlaps with the vertical projection of the first end trace of the second electrode on the bottom surface of the touch panel.

17. The touch panel according to any one of claims 13-16, characterized in that, The plurality of touch channels also includes a third touch channel, which is adjacent to the second touch channel. The third touch channel includes a third electrode, which is of the same type as the second electrode. The wiring area is also provided with a first end wiring of the third electrode, which is used to connect to the controller. A portion of the first end wiring of the third electrode is parallel to a portion of the first end wiring of the second electrode. The projection of the first end wiring of the third electrode in the first direction overlaps with the projection of the first end wiring of the second electrode in the first direction. The area of ​​the overlapping region is determined by the capacitance value between the first end trace of the second electrode and the first end trace of the third electrode.

18. A display screen, characterized in that, The display screen includes a display panel and a touch panel as described in any one of claims 1-17, wherein the touch panel is located above the display panel.

19. A display screen, characterized in that, The display screen includes a display panel and a touch panel as described in any one of claims 1-17, wherein the touch panel is integrated inside the display panel.

20. An electronic device, characterized in that, The electronic device supports a stylus as an input device, and the electronic device includes a housing and a display screen as described in claim 18 or 19 connected to the housing.

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