Touch panel and display device

Abstract

This application provides a touch panel and a display device. The touch panel includes a display area and at least a non-display area surrounding the display area. The touch panel includes a substrate, a sensing layer, and an electromagnetic excitation structure. The sensing layer is disposed on the substrate and includes at least one sensing electrode layer. A sensing area is disposed within the at least one sensing electrode layer, and at least a portion of the sensing area is located in the display area. At least a portion of the electromagnetic excitation structure is disposed within the display area. That is, by providing the electromagnetic excitation structure, an induced current can be generated or enhanced within the stylus, thereby enhancing the electromagnetic induction effect between the touch panel and the stylus. Furthermore, by providing the electromagnetic excitation structure within the display area, the size of the outer bezel of the non-display area can be reduced.

Description

Technical Field

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

[0002] Electromagnetic pen-controlled touchscreens (electromagnetic screens) combine electromagnetic resonance (EMR) technology with advanced touch panel technology to achieve high-precision touch control, a natural and smooth writing experience, and wide adaptability, bringing revolutionary changes to multiple fields such as education, design, and meeting recording.

[0003] However, the performance of current electromagnetic touch panels needs to be improved. Summary of the Invention

[0004] The purpose of this application is to provide a touch panel and display device that aims to solve the problem of low performance of display products in traditional technology.

[0005] A first aspect of this application provides a touch panel, including a display area and a non-display area at least partially surrounding the display area, the touch panel comprising:

[0006] substrate;

[0007] A sensing layer is disposed on the substrate, and the sensing layer includes at least one sensing electrode layer, wherein a sensing area is disposed within the at least one sensing electrode layer, and at least a portion of the sensing area is located in the display area;

[0008] An electromagnetic excitation structure, at least a portion of which is disposed within the display area.

[0009] In some embodiments of this application, the electromagnetic excitation structure is disposed on the same layer as the sensing layer, or the electromagnetic excitation structure is disposed on a different layer from the sensing layer;

[0010] Preferably, a sensing electrode is provided in the sensing area, the sensing electrode including a plurality of first electrodes spaced apart along a first direction and a plurality of second electrodes spaced apart along a second direction, the first direction and the second direction being intersected;

[0011] Preferably, the first electrode and the second electrode are disposed on the same layer, and at least one of the first electrode and the second electrode is routed through the first bridge structure; preferably, the first bridge structure is on the same layer as the first electrode or the second electrode; preferably, the first bridge structure is on a different layer from the first electrode and the second electrode.

[0012] Alternatively, the sensing layer may include at least two sensing electrode layers, wherein the first electrode and the second electrode are located in different sensing electrode layers.

[0013] In some embodiments of this application, at least a portion of the electromagnetic excitation structure is disposed in the same layer as at least one of the first bridge structure and the sensing electrode;

[0014] Alternatively, at least a portion of the electromagnetic excitation structure is disposed on different layers from the sensing electrode and the first bridge structure;

[0015] Preferably, at least a portion of the projection of the electromagnetic excitation structure onto the substrate is misaligned with the projection of the sensing electrode onto the substrate.

[0016] In some embodiments of this application, a gap is formed between any two adjacent sensing electrodes or inside any one of the sensing electrodes, and at least part of the electromagnetic excitation structure is disposed on the same layer as at least one of the first electrode and the second electrode, and is disposed within the gap.

[0017] In some embodiments of this application, the number of intervals is multiple, and the multiple intervals are arranged along at least one of the first direction and the second direction. The electromagnetic excitation structure includes multiple first parts arranged within the multiple intervals. The multiple first parts are connected in series along at least one of the first direction and the second direction, and at least any two adjacent first parts are connected by a second bridge structure.

[0018] In some embodiments of this application, the first electrode and the second electrode are respectively disposed in different sensing electrode layers, the plurality of intervals include a first interval and a second interval, and the first interval is formed in at least any two adjacent first electrodes or in at least any one of the first electrodes, and the second interval is formed between at least any two adjacent second electrodes or in at least any one of the second electrodes;

[0019] The first portion is disposed within the first interval and the second interval.

[0020] In some embodiments of this application, the number of sensing areas is multiple, and the electromagnetic excitation structure has first sub-coils disposed in different sensing areas, with multiple first sub-coils connected in parallel.

[0021] In some embodiments of this application, the electromagnetic excitation structure further includes a bus disposed at the edge of the display area;

[0022] A plurality of the first portions are connected in series along the first direction to form a first coil branch, and a plurality of the first portions are connected in series along the second direction to form a second coil branch. The number of at least one of the first coil branch and the second coil branch is at least two, and at least one of the first coil branch and the second coil branch is connected to the bus.

[0023] Preferably, the bus is located at least partially within the non-display area or at least partially within the display area;

[0024] Preferably, the bus is partially located in the non-display area and partially located in the display area; the bus located in the non-display area is made of solid metal, and the bus located in the display area is formed by multiplexing redundant portions of the sensing electrodes in the sensing electrode layer;

[0025] Preferably, the bus located within the display area has a mesh structure.

[0026] In some embodiments of this application, the bus includes a first sub-line and a second sub-line spaced apart along the first direction on both sides of the display area. The number of the second coil branches is multiple, and the second coil branches have a first sub-branch and a second sub-branch spaced apart along the first direction on both sides of the display area. The first sub-line is connected to at least two first portions of the first sub-branch, and the second sub-line is connected to at least two first portions of the second sub-branch.

[0027] Preferably, the bus further includes a third sub-line, which is disposed on the side of the sensing area opposite to the bus lead-out end, and the third sub-line is connected to the electromagnetic excitation structure in the sensing area.

[0028] In some embodiments of this application, the first coil branch is disposed near the edge of the display area, and the touch panel further includes a conductive structure disposed in the non-display area and connected to the first coil branch;

[0029] Preferably, the conductive structure is disposed near at least one of the first side, the second side, and the third side of the display area; the first side is the side of the display area opposite to the bus lead-out terminal, and the second side and the third side are the two sides of the display area adjacent to the bus lead-out terminal;

[0030] Preferably, the conductive structure includes a solid portion.

[0031] In some embodiments of this application, the number of electromagnetic excitation structures is multiple, and the multiple electromagnetic excitation structures are spaced apart along the first direction within the display area;

[0032] Alternatively, there may be multiple electromagnetic excitation structures, and these multiple electromagnetic excitation structures may be arranged side by side along the first direction, with two adjacent electromagnetic excitation structures sharing one first coil branch.

[0033] In some embodiments of this application, the first part is a mesh structure.

[0034] In some embodiments of this application, the sensing electrode layer includes a touch signal sensing layer, which is multiplexed as an electromagnetic signal sensing layer.

[0035] In some embodiments of this application, the sensing electrode layer is configured as at least two layers, the sensing electrode including a first sub-layer and a second sub-layer, the first sub-layer being a touch signal sensing layer and the second sub-layer being an electromagnetic signal sensing layer; at least a portion of the electromagnetic excitation structure is disposed on the same layer as at least one of the first sub-layer and the second sub-layer.

[0036] In some embodiments of this application, a first touch sensing electrode and a second touch sensing electrode are disposed in the first sub-layer, and the first touch sensing electrode and the second touch sensing electrode are disposed in the same layer or in different layers.

[0037] The second sub-layer is provided with row sensing electrodes and column sensing electrodes, which are arranged in the same layer or in different layers;

[0038] Preferably, at least one of the first touch sensing electrode and the second touch sensing electrode is disposed in the same layer as at least one of the row sensing electrode and the column sensing electrode.

[0039] In some embodiments of this application, the display area includes a first display area and a second display area, and the first display area and the second display area are respectively provided with electromagnetic excitation structures;

[0040] Preferably, the first display area and the second display area are arranged symmetrically to each other;

[0041] Preferably, the electromagnetic excitation structure located in the first display area is led out through the first bus on the side closer to the second display area, and the electromagnetic excitation structure located in the second display area is led out through the second bus on the side closer to the first display area.

[0042] Preferably, the first bus is multiplexed as the second bus.

[0043] Secondly, this application also provides a touch panel, including a display area and a non-display area at least partially surrounding the display area, comprising:

[0044] substrate;

[0045] Touch signal sensing electrodes, at least a portion of which are located in the display area;

[0046] An electromagnetic signal sensing electrode, wherein the touch signal sensing electrode is multiplexed as the electromagnetic signal sensing electrode;

[0047] An electromagnetic excitation structure, at least a portion of which is disposed within the display area.

[0048] Thirdly, this application also provides a display device, which includes the touch panel described above.

[0049] The beneficial effects of the embodiments of the present invention compared with the prior art are as follows: The touch panel and display device described above include a display area and at least a non-display area surrounding the display area; the touch panel includes a substrate, a sensing layer and an electromagnetic excitation structure, the sensing layer is disposed on the substrate and includes at least one sensing electrode layer, a sensing area is disposed within the at least one sensing electrode layer, and at least a portion of the sensing area is located in the display area; at least a portion of the electromagnetic excitation structure is disposed within the display area; that is, by providing the electromagnetic excitation structure, an induced current can be generated or enhanced within the stylus, thereby enhancing the electromagnetic induction effect between the touch panel and the stylus, and by providing the electromagnetic excitation structure within the display area, the size of the outer bezel of the non-display area can be reduced. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the structure of a touch panel provided in one embodiment of this application;

[0051] Figure 2 This is another structural schematic diagram of a touch panel provided in one embodiment of this application;

[0052] Figure 3 This is a schematic diagram of the structure of a touch panel provided in another embodiment of this application;

[0053] Figure 4 This is another structural schematic diagram of a touch panel provided in another embodiment of this application;

[0054] Figure 5 This is a schematic diagram of the structure of a touch panel provided in another embodiment of this application;

[0055] Figure 6 This is a schematic diagram of the structure of a touch panel provided in another embodiment of this application;

[0056] Figure 7 This is a schematic diagram of the structure of a touch panel provided in yet another embodiment of this application;

[0057] Figure 8 This is a schematic diagram of the structure of a touch panel provided in yet another embodiment of this application;

[0058] Figure 9 Provided for an embodiment of this application Figure 8 A magnified schematic diagram of a portion of structure A;

[0059] Figure 10 This is a schematic diagram of the structure of a touch panel provided in another embodiment of this application;

[0060] Figure 11 This is a schematic diagram of the structure of a touch panel provided in yet another embodiment of this application;

[0061] Figure 12 This is a schematic diagram of the structure of a touch panel provided in yet another embodiment of this application;

[0062] Figure 13 This is a schematic diagram of the structure of a touch panel provided in another embodiment of this application;

[0063] Figure 14 This is a schematic diagram of the structure of a touch panel provided in another embodiment of this application;

[0064] Figure 15 This is a schematic diagram of the structure of a touch panel provided in yet another embodiment of this application;

[0065] Figure 16 This is a schematic diagram of the structure of a touch panel provided in yet another embodiment of this application;

[0066] Figure 17 This is a schematic diagram of the structure of a touch panel provided in another embodiment of this application;

[0067] Figure 18 This is another schematic diagram of the structure of a touch panel provided in another embodiment of this application;

[0068] Figure 19 This is yet another structural schematic diagram of a touch panel provided in another embodiment of this application;

[0069] Figure 20 This is another schematic diagram of the structure of a touch panel provided in another embodiment of this application.

[0070] Specific element symbol explanations: 100-substrate, 200-sensing layer, 210-sensing electrode layer, 211-sensing area, 220-electromagnetic excitation structure, 221-first part, 222-second bridge structure, 223-first coil branch, 224-second coil branch, 225-first sub-branch, 226-second sub-branch, 300-sensing electrode, 310-first electrode, 311-spacer, 320-second electrode, 321-first... A bridge structure, 330-touch signal sensing electrode, 340-electromagnetic signal sensing electrode, 400-bus, 410-first sub-line, 420-second sub-line, 430-third sub-line, 440-first bus, 450-second bus, 500-conductive structure, 1000-display area, 1100-first display area, 1200-second display area, 1300-non-display area, a-first direction, b-second direction. Detailed Implementation

[0071] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0072] It should be noted that when a component is referred to as being "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0073] It should be understood that the terms "length", "width", "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0075] It's important to know that electromagnetic screens can accurately capture the movement of an electromagnetic pen on the screen and convert it into digital signals for storage and processing. This enables various functions such as original handwriting, drawing, and annotation, greatly enhancing the user experience.

[0076] However, with continuous technological advancements and increasingly diverse consumer demands, current electromagnetic screen technology still faces numerous challenges. On one hand, electromagnetic screens need further improvements in touch accuracy and writing smoothness to meet users' demands for a higher-quality writing and drawing experience. On the other hand, the durability and stability of electromagnetic screens are also pressing issues, especially under prolonged use and high-intensity touch scenarios; maintaining screen stability and extending its lifespan are crucial.

[0077] Furthermore, with the widespread adoption of smart devices and the development of IoT technology, electromagnetic screens need to possess stronger compatibility and scalability to support more types of electromagnetic pens and touch operations, while also achieving seamless connectivity and data sharing with other smart devices. These demands place higher requirements on the technological optimization of electromagnetic screens and also point the way for their future development. In related technologies, the touch panel can generate electromagnetic induction with the electromagnetic pen, thereby enabling the electromagnetic pen to control the touch panel. However, if the electromagnetic pen's voltage is unstable or it loses power, the touch operation is prone to failure.

[0078] Based on this, this application improves the related touch panel and display device.

[0079] Please see Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of the touch panel provided in this embodiment is shown. Figure 2 Another structural schematic diagram of the touch panel provided in this embodiment is shown. The touch panel of this embodiment includes a display area 1000 and a non-display area 1300 that at least partially surrounds the display area 1000; the touch panel includes a substrate 100, a sensing layer 200 and an electromagnetic excitation structure 220. The sensing layer 200 is disposed on the substrate 100 and includes at least one sensing electrode layer 210. A sensing area 211 is disposed within the at least one sensing electrode layer 210, and at least a portion of the sensing area 211 is located in the display area 1000; at least a portion of the electromagnetic excitation structure 220 is disposed within the display area 1000.

[0080] It should be explained that the display area 1000 can be understood as the image display area 1000 on the touch panel used to display observable content, and the non-display area 1300 is the area on the touch panel outside the display area 1000. The sensing area 211 can receive external touch signals to realize touch operation of the touch panel. The electromagnetic excitation structure 220 can generate excitation current in the electromagnetic pen using the principle of electromagnetic induction. For example, the electromagnetic excitation structure 220 can be an excitation coil made of conductive wire. For touch display panels, the sensing area 211 is usually set in the area of ​​the display area. The display area 1000 is provided with multiple pixel units, and images or information are displayed by controlling the light emission of multiple pixel units.

[0081] In related technologies, touch operation is prone to failure when the electromagnetic pen voltage is unstable or power is lost. However, in this application, by setting the electromagnetic excitation structure 220, an induced current can be generated or enhanced in the stylus, thereby enhancing the electromagnetic induction effect between the touch panel and the electromagnetic pen. Furthermore, by setting the electromagnetic excitation structure 220 in the display area 1000, the size of the outer bezel of the non-display area 1300 can be reduced.

[0082] Please refer to the embodiments described in this application. Figure 1 The electromagnetic excitation structure 220 is set on the same layer as the sensing layer 200.

[0083] In some embodiments, please refer to Figure 3 , Figure 3 A schematic diagram of the structure of the touch panel provided in this embodiment is shown; a sensing electrode 300 is provided in the sensing area 211 of this embodiment. The sensing electrode 300 includes a plurality of first electrodes 310 spaced apart along a first direction a and a plurality of second electrodes 320 spaced apart along a second direction b. The first direction a and the second direction b are intersected.

[0084] It should be explained that the first direction a and the second direction b are arranged in an intersecting manner, which enables the touch panel to locate the touch point by detecting the capacitance change of two sets of electrodes (multiple first electrodes 310 form one set of electrodes, and multiple second electrodes 320 form another set of electrodes).

[0085] In some embodiments, please continue reading Figure 3 And see Figure 4 , Figure 4 A schematic diagram of the structure of the touch panel provided in this embodiment is shown; the first electrode 310 and the second electrode 320 in this embodiment are arranged on the same layer, and at least one of the first electrode 310 and the second electrode 320 is routed through the first bridge structure 321.

[0086] It is understood that the first electrode 310 and the second electrode 320 can be disposed in the same sensing electrode layer 210. Since the first electrode 310 and the second electrode 320 have intersecting nodes, the first bridge structure 321 facilitates the routing of traces at the nodes. For example, the first electrode 310 can be routed through the first bridge structure 321, the second electrode 320 can be routed through the first bridge structure 321, or both the first electrode 310 and the second electrode 320 can be routed through different first bridge structures 321.

[0087] In some embodiments, please continue reading Figure 3 In this embodiment, the first direction a and the second direction b are perpendicular to each other. For example, a plurality of first electrodes 310 are arranged along the x-axis direction, and a plurality of second electrodes 320 are arranged along the y-axis direction, respectively obtaining the x-axis and y-axis coordinates of the touch point to achieve touch positioning.

[0088] In some embodiments, the first electrode 310 and the second electrode 320 can be strip electrodes or electrodes formed by connecting other shapes, such as rhomboid structures. The number of the first electrode 310 and the second electrode 320 can be determined according to the size of the sensing area 211.

[0089] In some embodiments, the first electrode 310 and the second electrode 320 may be configured as a mesh structure to increase the transmittance of the electrodes.

[0090] In some embodiments, the first bridge structure 321 is in the same layer as the first electrode 310 or the second electrode 320 (not shown).

[0091] In some embodiments, such as Figure 4 As shown, the first bridge structure 321 is located in a different layer from the first electrode 310 and the second electrode 320.

[0092] In some embodiments, please refer to Figure 5 , Figure 5 A schematic diagram of the structure of the touch panel provided in this embodiment is shown; the sensing layer 200 includes at least two sensing electrode layers 210, with the first electrode 310 and the second electrode 320 located in different sensing electrode layers 210.

[0093] It should be explained that since the first electrode 310 and the second electrode 320 are disposed in different sensing electrode layers 210, there is no need to set the first bridge structure 321 to complete the routing of the first electrode 310 and the second electrode 320.

[0094] In some embodiments, an insulating layer is provided between the sensing electrode layer 210 where the first electrode 310 is located and the sensing electrode layer 210 where the second electrode 320 is located, so as to isolate the first electrode 310 and the second electrode 320.

[0095] In some embodiments, the electromagnetic excitation structure 220 and the sensing layer 200 are disposed in different layers.

[0096] In some embodiments of this application, please refer to Figure 6 , Figure 6 A schematic diagram of the structure of the touch panel provided in this embodiment is shown; in this embodiment, at least part of the electromagnetic excitation structure 220 is disposed on the same layer as at least one of the first bridge structure 321 and the first electrode 310 or the second electrode 320 of the sensing electrode.

[0097] For example, at least a portion of the electromagnetic excitation structure 220 can be disposed on the same layer as the first bridge structure 321. The first bridge metal and the first electrode 310 and second electrode 320 of the sensing electrode are disposed in different sensing electrode layers 210, and at least a portion of the electromagnetic excitation structure 220 can be disposed on the same layer as the first bridge structure 321, which is beneficial for saving space.

[0098] For example, at least part of the electromagnetic excitation structure 220 may be disposed in the same layer as the first electrode 310 and the second electrode 320 of the sensing electrode.

[0099] For example, at least some of the electromagnetic excitation structure 220 and the first electrode 310, second electrode 320 and first bridge structure 321 of the sensing electrodes may be disposed on different layers. That is, the sensing layer 200 includes at least three sensing electrode layers 210, and the sensing electrode 300, the first bridge structure 321 and the electromagnetic excitation structure 220 are disposed in at least three sensing electrode layers 210.

[0100] In some embodiments, there are multiple first bridge structures 321, and the multiple first bridge structures 321 are disposed in different sensing electrode layers 210. At least some electromagnetic excitation structures 220 can be disposed in the same sensing electrode layer 210 as any first bridge structure 321.

[0101] It is understood that the first bridge structure 321 can be disposed at any position of the first electrode 310 and / or the second electrode 320. The first bridge structure 321 can be disposed on the upper or lower sensing electrode layer of the sensing electrode layer 210 where the sensing electrode 300 is located, or part of the first bridge structure 321 can be disposed on the upper sensing electrode layer and part of the first bridge structure 321 can be disposed on the lower sensing electrode layer 210. In this embodiment, at least part of the electromagnetic excitation structure 220 can also be disposed on the upper or lower sensing electrode layer of the sensing electrode layer 210 where the sensing electrode 300 is located.

[0102] In some embodiments, the sensing electrode layer 210 is a metal layer.

[0103] In some embodiments, please refer to Figure 7 , Figure 7 A schematic diagram of the touch panel provided in this embodiment is shown; in this embodiment, at least a portion of the electromagnetic excitation structure 220 is misaligned with the projection of the sensing electrode 300 on the substrate 100. That is, at least a portion of the electromagnetic excitation structure 220 and the sensing electrode 300 are misaligned on the same layer.

[0104] It should be explained that when the first electrode 310 and the second electrode 320 are disposed on the same layer in the sensing electrode 300, at least a portion of the electromagnetic excitation structure 220 can be disposed in a region avoiding the first electrode 310 and the second electrode 320. When the first electrode 310 and the second electrode 320 are disposed on different layers in the sensing electrode 300, the electromagnetic excitation structure 220 can be on the same layer as the first electrode 310, or on the same layer as the second electrode 320, or a portion of the electromagnetic excitation structure 220 can be on the same layer as the first electrode 310 and a portion of the electromagnetic excitation structure 220 can be on the same layer as the second electrode 320. By selectively disposing of the electromagnetic excitation structure 220 in a region avoiding the first electrode 310 within the sensing electrode layer 210 where the first electrode 310 is located, and by selectively disposing of the electromagnetic excitation structure 220 in a region avoiding the second electrode 320 within the sensing electrode layer 210 where the second electrode 320 is located, a misaligned structure can be formed between the electromagnetic excitation structure 220 and the sensing electrode 300.

[0105] It is understandable that, compared to a structure in which the electromagnetic excitation structure 220 and the sensing electrode 300 are disposed on different layers, in this embodiment, by disposing at least part of the electromagnetic excitation structure 220 on the same layer as the sensing electrode 300, the masking step can be completed in only one masking process, which is beneficial to shorten production time and reduce production costs; and by disposing the electromagnetic excitation structure 220 in the sensing area 211 and offset from the sensing electrode 300, the space utilization of the sensing electrode layer 210 where the sensing electrode 300 is located is improved.

[0106] Please refer to the embodiments described in this application. Figure 7 In this embodiment, a gap 311 is formed between any two adjacent sensing electrodes 300 or inside any sensing electrode 300. At least part of the electromagnetic excitation structure 220 is disposed on the same layer as at least one of the first electrode 310 and the second electrode 320, and is disposed within the gap 311.

[0107] It should be explained that in the structure where multiple first electrodes 310 and multiple second electrodes 320 are arranged in a row and column configuration, a gap 311 can be formed between the multiple first electrodes 310, a gap 311 can also be formed between the multiple second electrodes 320, and a gap 311 can also be formed between the first electrodes 310 and the second electrodes 320. This helps to reduce coupling interference between the first electrodes 310, or between the second electrodes 320, or between the first electrodes 310 and the second electrodes 320. Furthermore, the first electrodes 310 and the second electrodes 320 themselves can be configured as hollow structures, with the hollow portions forming the gaps 311.

[0108] It is understood that, in this embodiment, at least a portion of the electromagnetic excitation structure 220 can be disposed within the interval 311 of the sensing electrode layer 210 where the first electrode 310 is located.

[0109] In some embodiments of this application, (not shown) at least a portion of the electromagnetic excitation structure 220 is disposed on the same layer as the sensing electrode 300, and a gap 311 is provided between any two adjacent sensing electrodes 300 or within any at least one sensing electrode 300. At least a portion of the electromagnetic excitation structure 220 is disposed on the same layer as the second electrode 320 and is disposed within the gap 311.

[0110] It is understood that, in this embodiment, at least a portion of the electromagnetic excitation structure 220 can be disposed within the interval 311 of the sensing electrode layer 210 where the second electrode 320 is located.

[0111] In some embodiments of this application, (as shown in the figure) at least a portion of the electromagnetic excitation structure 220 is disposed on the same layer as the sensing electrode 300, and a gap 311 is provided between any two adjacent sensing electrodes 300 or within any at least one sensing electrode 300. At least a portion of the electromagnetic excitation structure 220 is disposed on the same layer as the first electrode 310 and the second electrode 320, and is disposed within the gap 311.

[0112] It is understood that, in this embodiment, at least some of the electromagnetic excitation structures 220 can be disposed within the interval 311 between the sensing electrode layer 210 where the first electrode 310 is located and the sensing electrode layer 210 where the second electrode 320 is located. In this way, more electromagnetic excitation structures 220 can be disposed, which is beneficial to improving the electromagnetic effect of the electromagnetic excitation structures 220.

[0113] In some embodiments of this application, please refer to Figure 8 and Figure 9 , Figure 8 A schematic diagram of the structure of the touch panel provided in this embodiment is shown. Figure 9 This embodiment provides the following: Figure 8A magnified schematic diagram of a partial A structure. In this embodiment, there are multiple intervals 311, and the multiple intervals 311 are arranged along at least one of the first direction a and the second direction b. The electromagnetic excitation structure 220 includes multiple first parts 221 arranged in the multiple intervals 311. The multiple first parts 221 are connected in series along at least one of the first direction a and the second direction b, and at least any two adjacent first parts 221 are connected by a second bridge structure 222.

[0114] In some embodiments of this application, (not shown) the first electrode 310 and the second electrode 320 are respectively disposed in different sensing electrode layers 210, the plurality of intervals 311 include the first interval and the second interval, and the first interval is formed in at least any two adjacent first electrodes 310 or at least any one first electrode 310, and the second interval is formed between at least any two adjacent second electrodes 320 or at least any one second electrode 320; the first part 221 is disposed in the first interval and the second interval.

[0115] It is understood that each sensing electrode layer 210 contains a portion of the electromagnetic excitation structure 220. Therefore, more electromagnetic excitation structures 220 can be incorporated into the gaps between the sensing electrodes 300, which is beneficial for increasing the magnetic induction of the electromagnetic excitation structure 220.

[0116] In some embodiments of this application, the number of sensing regions 211 is multiple, and the electromagnetic excitation structure 220 has first sub-coils disposed in different sensing regions, with multiple first sub-coils connected in parallel.

[0117] Specifically, this embodiment uses multiple first sub-coils connected in parallel, which helps to reduce the overall resistance of the electromagnetic excitation structure 220 and thus helps to increase the current in the electromagnetic excitation structure 220. Furthermore, first sub-coils are provided in different sensing areas 211, which helps to increase the range of excitation current and thus improve the user experience. Moreover, the excitation current in the electromagnetic pen can be increased through the combined action of multiple first sub-coils.

[0118] Please refer to the embodiments described in this application. Figure 8 and Figure 9 The electromagnetic excitation structure 220 of this embodiment also includes a bus 400 disposed at the edge of the display area 1000; a plurality of first parts 221 are connected in series along a first direction a to form a first coil branch 223, and a plurality of first parts 221 are connected in series along a second direction b to form a second coil branch 224. The number of at least one of the first coil branch 223 and the second coil branch 224 is at least two, and at least one of the first coil branch 223 and the second coil branch 224 is connected to the bus 400.

[0119] It should be noted that selecting multiple first parts 221 to form the first coil branch 223 and the second coil branch 224 is beneficial to ensuring that while saving space, the mutual interference between the electromagnetic excitation structure 220 and the sensing electrode 300 can also be reduced.

[0120] In the exemplary description, the loop of the electromagnetic excitation structure 220 sequentially includes a bus bar 400, the second coil branch 224 on the left side, the first coil branch 223, the second coil branch 224 on the right side, and the bus bar 400. Specifically, the second coil branch 224 on the left side, the first coil branch 223, and the second coil branch 224 on the right side enclose a "U" - shaped structure.

[0121] In some embodiments, please refer to Figure 10 , Figure 10 which shows a schematic structural diagram of the display panel provided in this embodiment. Figure 10 TX1, TX2, TX3... TXN in correspond to multiple first electrodes 310; RX1, RX2, RX3... RXN correspond to multiple second electrodes 320. The number of the first coil branches 223 in this embodiment is multiple, and the multiple first coil branches 223 are arranged in parallel between the second coil branch 224 and the bus bar 400. And / or, the number of the second coil branches 224 is multiple, and the multiple second coil branches 224 are arranged in parallel between the first coil branch 223 on the left side and the second coil branch 224 on the right side. The multiple first coil branches 223 arranged in parallel or the multiple second coil branches 224 arranged in parallel are beneficial to reducing the resistance of the electromagnetic excitation structure 220.

[0122] In some embodiments, multiple rows and columns of sensing electrodes 300 are formed in the sensing area 211, and the intervals 311 between the sensing electrodes 300 also have a layout structure of multiple rows and columns. The first coil branch 223 and the second coil branch 224 in this embodiment are preferably formed by using the first parts 221 in the intervals 311 within the rows / columns at the edge of the sensing area 211.

[0123] In some embodiments of the present application, please refer to Figure 11 , Figure 11 which shows a schematic structural diagram of the display panel provided in this embodiment. The bus bar 400 of this embodiment includes a first sub - wire 410 and a second sub - wire 420 that are spaced along the first direction a on both sides of the display area 1000. The number of the second coil branches 224 is multiple, and the second coil branch 224 has a first sub - branch 225 and a second sub - branch 226 that are spaced 311 along the first direction a on the edges of both sides of the display area 1000. The first sub - wire 410 is connected to at least two first parts 221 of the first sub - branch 225, and the second sub - wire 420 is connected to at least two first parts 221 of the second sub - branch 226.

[0124] It is understandable that the bus 400 has a larger linewidth and lower resistance than the second bridge structure 222 in the second coil branch 224, which helps to reduce the resistance of the electromagnetic excitation structure 220.

[0125] In some embodiments, the bus 400 may be entirely located in the non-display area 1300, entirely located in the display area 1000, or partially located in the display area 1000 and partially located in the non-display area 1300. The bus 400 located in the non-display area 1300 is made of solid metal, and the bus 400 located in the display area 1000 is formed by multiplexing redundant portions of the first electrode 310 or the second electrode 320, forming a mesh structure that can increase transmittance.

[0126] In some embodiments, please refer to Figure 12 , Figure 12 A schematic diagram of the display panel provided in this embodiment is shown. The bus 400 in this embodiment also includes a third sub-line 430, which is disposed in the sensing area 211 on the side opposite to the lead-out terminal of the bus 400. Figure 12 (shown on the upper side), and connected to the electromagnetic excitation structure 220 within the sensing area 211.

[0127] In some embodiments of this application, please refer to Figure 13 , Figure 13 The diagram shows the structure of the display panel provided in this embodiment. The first coil branch 223 of this embodiment is disposed near the edge of the display area 1000. The touch panel also includes a conductive structure 500, which is disposed in the non-display area 1300 and connected to the first coil branch 223.

[0128] Understandably, the conductive structure 500 can be configured to have a larger linewidth than the bridge structure, which helps to reduce the resistance of the electromagnetic excitation structure 220.

[0129] In some embodiments, the conductive structure 500 is disposed near at least one of the first side, the second side, and the third side of the display area 1000; the first side is the side of the display area 1000 opposite to the lead-out terminal of the bus 400, and the second side and the third side are the two sides of the display area 1000 adjacent to the lead-out terminal of the bus 400.

[0130] In some embodiments, the conductive structure 500 includes a solid portion. Specifically, the solid portion is made of solid metal.

[0131] In some embodiments of this application, please refer to Figure 14 , Figure 14A schematic diagram of the display panel provided in this embodiment is shown. This embodiment has multiple electromagnetic excitation structures 220, and these multiple electromagnetic excitation structures 220 are arranged at intervals 311 along the first direction a within the display area 1000. Thus, providing multiple electromagnetic excitation structures 220 is beneficial for increasing the magnetic induction effect of the electromagnetic excitation structures 220.

[0132] In some exemplary embodiments, please continue to refer to Figure 14 The spacing between two adjacent electromagnetic excitation structures 220 can be set to a larger value; for comparison, please refer to [link to relevant documentation]. Figure 15 , Figure 15 A schematic diagram of the structure of the display panel provided in this embodiment is shown; the spacing between two adjacent electromagnetic excitation structures 220 in this embodiment can be set to be small, that is, the two adjacent electromagnetic excitation structures 220 are set as close as possible.

[0133] In other exemplary embodiments, please continue to refer to Figure 14 In this embodiment, the multiple electromagnetic excitation structures 220 can be distributed on both sides and in the middle of the sensing area 211, with the electromagnetic excitation structures 220 on both sides disposed close to the side edges of the sensing area 211. Alternatively, please refer to... Figure 16 , Figure 16 A schematic diagram of the display panel provided in this embodiment is shown. In this embodiment, multiple electromagnetic excitation structures 220 can be distributed in the regions on the left and right sides of the sensing area 211, and the electromagnetic excitation structures 220 are not located near the edge of the sensing area 211.

[0134] In some embodiments, please refer to Figure 17 And see Figure 18 , Figure 17 A schematic diagram of the display panel provided in this embodiment is shown. Figure 18 A schematic diagram of the structure of the display panel provided in this embodiment is shown. Figure 17 In this embodiment, TX1, TX2, TX3, TXM, TXM+1, TXM+2, TXM+3...TXN correspond to multiple first electrodes 310; RX1, RX2, RX3...RXN correspond to multiple second electrodes 320. The number of electromagnetic excitation structures 220 in this embodiment is multiple, and these multiple electromagnetic excitation structures 220 are arranged side-by-side along the first direction a, with adjacent excitation sub-coils sharing a second coil branch 224. This allows for the provision of more electromagnetic excitation structures 220, increasing the density of the electromagnetic excitation structures 220.

[0135] In some embodiments, such as Figure 18 As shown, one or more of the multiple electromagnetic excitation structures 220 share a single bus 400.

[0136] In some embodiments of this application, the first portion 221 is a mesh structure. This mesh structure helps reduce the resistance of the electromagnetic excitation structure 220. Exemplarily, the mesh structure is a mesh-like metal structure.

[0137] In some embodiments of this application, the sensing electrode layer 210 includes a touch signal sensing layer, which is multiplexed as an electromagnetic signal sensing layer. That is, the touch signal sensing layer and the electromagnetic signal sensing layer are multiplexed.

[0138] Specifically, touch control can include capacitive touch and electromagnetic touch, and this application mainly optimizes and improves the electromagnetic touch solution. For a touch panel with electromagnetic touch function, its sensing electrodes 300 need to be distributed on the sensing area 211 to obtain touch position information. For example, electromagnetic interaction can be performed between an electromagnetic pen and the sensing electrodes 300 to obtain the touch position of the electromagnetic pen. For a passive electromagnetic pen, the electromagnetic excitation structure 220 can provide the necessary induced current to the passive electromagnetic pen so that the sensing electrodes 300 can sense the position of the passive electromagnetic pen. For an active electromagnetic pen, the electromagnetic excitation structure 220 can enhance the induced current in the active electromagnetic pen, which is beneficial to improving the sensing capability of the sensing electrodes 300 to the active electromagnetic pen, and thus beneficial to increasing the driving capability of the electromagnetic pen.

[0139] In some embodiments of this application, the sensing electrode layer 210 is configured with at least two layers, and the sensing electrode 300 includes a first sub-layer and a second sub-layer. The first sub-layer is a touch signal sensing layer, and the second sub-layer is an electromagnetic signal sensing layer. At least a portion of the electromagnetic excitation structure 220 is disposed on the same layer as at least one of the first sub-layer and the second sub-layer. That is, the electromagnetic signal sensing layer and the touch signal sensing layer are disposed separately.

[0140] It is understandable that the electromagnetic excitation structure 220 can be set in the same layer as the first sub-layer or the second sub-layer. Alternatively, some of the electromagnetic excitation structures 220 can be set in the same layer as the first sub-layer, and some of the electromagnetic excitation structures 220 can be set in the same layer as the second sub-layer.

[0141] In some embodiments, the electromagnetic excitation structure 220 is disposed in the sensing electrode layer 210 closer to the substrate 100 in the first sublayer and the second sublayer.

[0142] In some embodiments of this application, a first touch sensing electrode and a second touch sensing electrode are disposed within a first sub-layer. The first touch sensing electrode and the second touch sensing electrode are disposed in the same layer or in different layers. It is understood that when the first touch sensing electrode and the second touch sensing electrode are disposed in the same layer, the first touch sensing electrode or the second touch sensing electrode is connected by a first bridge structure 321. Exemplarily, the first touch sensing electrode is a driving electrode, and the second touch sensing electrode is a sensing electrode.

[0143] In some embodiments, row sensing electrodes and column sensing electrodes are provided in the second sub-layer, and the row sensing electrodes and column sensing electrodes are provided in the same layer or in different layers; it is understood that when the row sensing electrodes and column sensing electrodes are provided in the same layer, the row sensing electrodes or column sensing electrodes are connected by a first bridge structure 321.

[0144] In some embodiments, at least one of the first touch sensing electrode and the second touch sensing electrode is disposed in the same layer as at least one of the row sensing electrode and the column sensing electrode. For example, if the first touch sensing electrode is disposed in the same layer as the row sensing electrode, and the second touch sensing electrode and the column sensing electrode are disposed in different layers, a three-layer sensing electrode layer 210 structure can be formed. For example, if the first touch sensing electrode is disposed in the same layer as the row sensing electrode, and the second touch sensing electrode and the column sensing electrode are disposed in the same layer, a two-layer sensing electrode layer 210 structure can be formed.

[0145] In some embodiments, the two types of sensing electrodes disposed in the same layer are reused.

[0146] Please refer to the embodiments described in this application. Figure 18 The display area 1000 includes a first display area 1100 and a second display area 1200, and the first display area 1100 and the second display area 1200 are respectively provided with electromagnetic excitation structures 220. For example... Figure 18 As shown, the display area 1000 includes a first display area 1100 and a second display area 1200 respectively located on the left and right sides.

[0147] It should be explained that the first display area 1100 and the second display area 1200 can be two independent and adjacent display areas, or the first display area 1100 and the second display area 1200 can be adjacent and combined to form a single display area. In this embodiment, each display area 1000 is equipped with an electromagnetic excitation structure 220, which helps to make full use of the space on multiple display areas 1000, thereby reducing the space occupied by the electromagnetic excitation structure 220 in the non-display area 1300, and also increasing the applicable area of ​​the electromagnetic pen. In some embodiments, the first display area 1100 and the second display area 1200 are symmetrically arranged. It can be understood that the first display area is the left half of the display area on the touch panel, and the second display area is the right half of the display area on the touch panel; wherein, the left half and the right half are axially symmetrical about the center line of the display area.

[0148] In some embodiments, the electromagnetic excitation structure 220 located in the first display area 1100 is led out through the first bus 440 on the side near the second display area 1200, and the electromagnetic excitation structure 220 located in the second display area 1200 is led out through the second bus 450 on the side near the first display area 1100.

[0149] Understandably, the electromagnetic excitation structures 220 in both display areas can be brought out through the bus.

[0150] In some embodiments, the first bus 440 is multiplexed as the second bus 450. This helps to save wiring space.

[0151] In some embodiments of this application, please refer to Figure 19 and Figure 20 , Figure 19 A schematic diagram of the display panel provided in this embodiment is shown. Figure 20 Another structural schematic diagram of the touch panel provided in this embodiment is shown; this embodiment also provides a touch panel including a display area 1000 and at least a non-display area 1300 surrounding the display area 1000, and the touch panel includes a substrate 100, a touch signal sensing electrode 330, an electromagnetic signal sensing electrode 340 and an electromagnetic excitation structure 220; at least a portion of the touch signal sensing electrode 330 is located in the display area 1000; the touch signal sensing electrode 330 is multiplexed as the electromagnetic signal sensing electrode 340; at least a portion of the electromagnetic excitation structure 220 is disposed within the display area 1000.

[0152] Furthermore, in order to better implement the touch panel in any of the above embodiments, this application also provides a display device based on the above touch panel, the display device including the above touch panel.

[0153] In some embodiments, the touch panel is a flexible OLED touch panel, a rigid OLED touch panel, an LCD touch panel, and a microLED touch panel.

[0154] In some embodiments, the structure of the sensing layer and electromagnetic excitation structure in the above-described touch panel can also be applied to structures such as cover glass, polarizer, transparent substrate, and metal mesh.

[0155] In some embodiments, the display device may be a mobile phone, tablet, desktop computer, laptop computer, watch, bracelet, etc.

[0156] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0157] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0158] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0159] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0160] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A touch panel comprising a display area and a non-display area at least partially surrounding the display area, characterized in that, The touch panel includes: substrate; A sensing layer is disposed on the substrate, and the sensing layer includes at least one sensing electrode layer, wherein a sensing area is disposed within the at least one sensing electrode layer, and at least a portion of the sensing area is located in the display area; An electromagnetic excitation structure, at least a portion of which is disposed within the display area.

2. The touch panel according to claim 1, characterized in that, The electromagnetic excitation structure is disposed on the same layer as the sensing layer, or the electromagnetic excitation structure is disposed on a different layer from the sensing layer. Preferably, a sensing electrode is provided in the sensing area, the sensing electrode including a plurality of first electrodes spaced apart along a first direction and a plurality of second electrodes spaced apart along a second direction, the first direction and the second direction being intersected; Preferably, the first electrode and the second electrode are disposed on the same layer, and at least one of the first electrode and the second electrode is routed through the first bridge structure; preferably, the first bridge structure is on the same layer as the first electrode or the second electrode; preferably, the first bridge structure is on a different layer from the first electrode and the second electrode. Alternatively, the sensing layer may include at least two sensing electrode layers, wherein the first electrode and the second electrode are located in different sensing electrode layers.

3. The touch panel according to claim 2, characterized in that, At least a portion of the electromagnetic excitation structure is disposed in the same layer as at least one of the first bridge structure and the sensing electrode; Alternatively, at least a portion of the electromagnetic excitation structure is disposed on different layers from the sensing electrode and the first bridge structure; Preferably, at least a portion of the projection of the electromagnetic excitation structure onto the substrate is misaligned with the projection of the sensing electrode onto the substrate.

4. The touch panel according to claim 3, characterized in that, A gap is formed between any two adjacent sensing electrodes or inside any one of the sensing electrodes, and at least part of the electromagnetic excitation structure is disposed on the same layer as at least one of the first electrode and the second electrode, and is disposed within the gap.

5. The touch panel according to claim 4, characterized in that, The number of intervals is multiple, and the multiple intervals are arranged along at least one of the first direction and the second direction. The electromagnetic excitation structure includes multiple first parts arranged within the multiple intervals. The multiple first parts are connected in series along at least one of the first direction and the second direction, and at least any two adjacent first parts are connected by a second bridge structure.

6. The touch panel according to claim 5, characterized in that, The first electrode and the second electrode are respectively disposed in different sensing electrode layers, and the plurality of intervals include a first interval and a second interval, and the first interval is formed in at least any two adjacent first electrodes or in at least any one of the first electrodes, and the second interval is formed between at least any two adjacent second electrodes or in at least any one of the second electrodes; The first portion is disposed within the first interval and the second interval.

7. The touch panel according to claim 1, characterized in that, The number of sensing areas is multiple, and the electromagnetic excitation structure has first sub-coils disposed in different sensing areas, with multiple first sub-coils connected in parallel.

8. The touch panel according to claim 5, characterized in that, The electromagnetic excitation structure also includes a bus disposed at the edge of the display area; A plurality of the first portions are connected in series along the first direction to form a first coil branch, and a plurality of the first portions are connected in series along the second direction to form a second coil branch. The number of at least one of the first coil branch and the second coil branch is at least two, and at least one of the first coil branch and the second coil branch is connected to the bus. Preferably, the bus is located at least partially within the non-display area or at least partially within the display area; Preferably, the bus is partially located in the non-display area and partially located in the display area; the bus located in the non-display area is made of solid metal, and the bus located in the display area is formed by multiplexing redundant portions of the sensing electrodes in the sensing electrode layer; Preferably, the bus located within the display area has a mesh structure.

9. The touch panel according to claim 8, characterized in that, The busbar includes a first sub-line and a second sub-line spaced apart along the first direction on both sides of the display area. The number of second coil branches is multiple, and each second coil branch has a first sub-branch and a second sub-branch spaced apart along the first direction on both sides of the display area. The first sub-line is connected to at least two first portions of the first sub-branch, and the second sub-line is connected to at least two first portions of the second sub-branch. Preferably, the bus further includes a third sub-line, which is disposed on the side of the sensing area opposite to the bus lead-out end, and the third sub-line is connected to the electromagnetic excitation structure in the sensing area.

10. The touch panel according to claim 8, characterized in that, The first coil branch is disposed near the edge of the display area, and the touch panel further includes a conductive structure disposed in the non-display area and connected to the first coil branch; Preferably, the conductive structure is disposed near at least one of the first side, the second side, and the third side of the display area; the first side is the side of the display area opposite to the bus lead-out terminal, and the second side and the third side are the two sides of the display area adjacent to the bus lead-out terminal; Preferably, the conductive structure includes a solid portion.

11. The touch panel according to claim 8, characterized in that, The number of electromagnetic excitation structures is multiple, and the multiple electromagnetic excitation structures are spaced apart along the first direction within the display area; Alternatively, there may be multiple electromagnetic excitation structures, and these multiple electromagnetic excitation structures may be arranged side by side along the first direction, with two adjacent electromagnetic excitation structures sharing one first coil branch.

12. The touch panel according to claim 5, characterized in that, The first part is a mesh structure.

13. The touch panel according to any one of claims 1 to 12, characterized in that, The sensing electrode layer includes a touch signal sensing layer, which is multiplexed as an electromagnetic signal sensing layer.

14. The touch panel according to any one of claims 1 to 12, characterized in that, The sensing electrode layer is configured with at least two layers, the sensing electrode including a first sub-layer and a second sub-layer, the first sub-layer being a touch signal sensing layer, and the second sub-layer being an electromagnetic signal sensing layer; at least a portion of the electromagnetic excitation structure is disposed on the same layer as at least one of the first sub-layer and the second sub-layer.

15. The touch panel according to claim 14, characterized in that, The first sub-layer is provided with a first touch sensing electrode and a second touch sensing electrode, which are disposed in the same layer or in different layers; The second sub-layer is provided with row sensing electrodes and column sensing electrodes, which are arranged in the same layer or in different layers; Preferably, at least one of the first touch sensing electrode and the second touch sensing electrode is disposed in the same layer as at least one of the row sensing electrode and the column sensing electrode.

16. The touch panel according to claim 1, characterized in that, The display area includes a first display area and a second display area, and the first display area and the second display area are respectively provided with electromagnetic excitation structures; Preferably, the first display area and the second display area are arranged symmetrically to each other; Preferably, the electromagnetic excitation structure located in the first display area is closer to the side of the second display area and is led out through the first bus; the electromagnetic excitation structure located in the second display area is closer to the side of the first display area and is led out through the second bus. Preferably, the first bus is multiplexed as the second bus.

17. A touch panel comprising a display area and a non-display area at least partially surrounding the display area, characterized in that, include: substrate; Touch signal sensing electrodes, at least a portion of which are located in the display area; An electromagnetic signal sensing electrode, wherein the touch signal sensing electrode is multiplexed as the electromagnetic signal sensing electrode; An electromagnetic excitation structure, at least a portion of which is disposed within the display area.

18. A display device, characterized in that, The display device includes a touch panel as described in any one of claims 1 to 17.

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