Touch module and display device

Abstract

The invention discloses a touch module and a display device. The touch module comprises a substrate; the touch electrode unit comprises a touch electrode; the electromagnetic coil unit comprises a first electromagnetic electrode and a second electromagnetic electrode; the first electromagnetic electrode, the second electromagnetic electrode and the touch electrode are arranged on different layers, or the touch electrode and at least one of the first electromagnetic electrode and the second electromagnetic electrode are arranged on the same layer, and the orthographic projection of the touch electrode unit on the substrate and the orthographic projection of the electromagnetic coil unit on the substrate are arranged in a staggered mode. According to the touch module provided by the embodiment of the invention, the first electromagnetic electrode and the second electromagnetic electrode are arranged on different layers with the touch electrode or at least one of the first electromagnetic electrode and the second electromagnetic electrode is arranged on the same layer with the touch electrode, the first electromagnetic electrode and the second electromagnetic electrode are integrated into one touch module, and meanwhile, the orthographic projections of the first electromagnetic electrode and the second electromagnetic electrode on the substrate are staggered, so that the distance between the first electromagnetic electrode and the second electromagnetic electrode is increased; therefore, the load of the touch module is effectively reduced, and finally the use performance of the whole touch module is improved.

Description

[0001] Cross-references to related applications This application claims priority to Chinese patent application 202510121166.7 entitled “Touch Module and Display Device”, filed on January 23, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of display technology, specifically to a touch module and display device. Background Technology

[0003] Currently, display panels have increasingly higher requirements for touch operation. Touch panels mainly include capacitive touch and electromagnetic touch. Existing technology integrates electromagnetic touch components inside the capacitive touch screen to make it compatible with electromagnetic touch operation. However, due to the close proximity of the electromagnetic touch components and the components of the capacitive touch screen, they interfere with each other, resulting in excessive load and performance that needs to be improved. Summary of the Invention

[0004] This application provides a touch module and display device that can improve the integration and thickness of the touch module, while reducing the coupling capacitance between the touch electrode unit and the electromagnetic coil unit, reducing the load on the touch module, and improving the performance of the touch module.

[0005] In a first aspect, according to an embodiment of this application, a touch module is provided, comprising: a substrate, a touch electrode unit, and an electromagnetic coil unit. The touch electrode unit includes a touch electrode, and the electromagnetic coil unit includes a first electromagnetic electrode and a second electromagnetic electrode. The touch electrode unit and the electromagnetic coil unit are disposed on one side of the substrate. The first electromagnetic electrode, the second electromagnetic electrode, and the touch electrode are disposed on different layers, or the touch electrode is disposed on the same layer as at least one of the first electromagnetic electrode and the second electromagnetic electrode. The orthographic projection of the touch electrode unit on the substrate is offset from the orthographic projection of the electromagnetic coil unit on the substrate.

[0006] The touch module provided in the first aspect of this application integrates the touch electrode unit and the electromagnetic coil unit into one touch module by utilizing the first electromagnetic electrode and the second electromagnetic electrode to be disposed on different layers from the touch electrode or at least one of them to be disposed on the same layer as the touch electrode. At the same time, by staggering the orthographic projections of the touch electrode unit and the electromagnetic coil unit on the substrate, the distance between the touch electrode unit and the electromagnetic coil unit is increased, and the coupling capacitance between the touch electrode unit and the electromagnetic coil unit is reduced, thereby effectively reducing the load of the touch module and ultimately improving the performance of the touch module.

[0007] According to one aspect of the embodiments of this application, the touch electrode includes a first touch electrode and a second touch electrode, and at least two of the first touch electrode, the second touch electrode, the first electromagnetic electrode and the second electromagnetic electrode are disposed in the same layer.

[0008] According to one aspect of the embodiments of this application, the first electromagnetic electrode and the second electromagnetic electrode are disposed in the same layer.

[0009] According to one aspect of the embodiments of this application, the first touch electrode and the second touch electrode are disposed in the same layer.

[0010] According to one aspect of the embodiments of this application, one of the first touch electrode and the second touch electrode is disposed in the same layer as one of the first electromagnetic electrode and the second electromagnetic electrode.

[0011] According to one aspect of the embodiments of this application, the first touch electrode and the first electromagnetic electrode are disposed on the same layer.

[0012] According to one aspect of the embodiments of this application, the second touch electrode and the second electromagnetic electrode are disposed in the same layer.

[0013] According to one aspect of the embodiments of this application, the first touch electrode is disposed in the same layer as one of the first electromagnetic electrode and the second electromagnetic electrode, and the second touch electrode is disposed in the same layer as the other of the first electromagnetic electrode and the second electromagnetic electrode.

[0014] According to one aspect of the embodiments of this application, the first touch electrode and the first electromagnetic electrode are disposed on the same layer, and the second touch electrode and the second electromagnetic electrode are disposed on the same layer.

[0015] According to one aspect of the embodiments of this application, the first touch electrode and the second touch electrode include a plurality of first functional sub-blocks, and the first electromagnetic electrode and the second electromagnetic electrode include a plurality of second functional sub-blocks. The first functional sub-blocks are spaced apart from each other in the orthographic projection of the substrate and the second functional sub-blocks are spaced apart in the orthographic projection of the substrate.

[0016] According to one aspect of the embodiments of this application, the first touch electrode, the second touch electrode, the first electromagnetic electrode and the second electromagnetic electrode are grid wiring structures. The first touch electrode and the second touch electrode also include a plurality of first conductive parts. The first conductive parts are electrically connected to the first functional sub-block. The grid wiring density of the first functional sub-block is greater than the grid wiring density of the first conductive parts. The orthographic projection of the first conductive parts on the substrate and the orthographic projection of the second functional sub-block on the substrate at least partially overlap.

[0017] According to one aspect of the embodiments of this application, two adjacent first functional sub-blocks are electrically connected by a plurality of first conductive parts.

[0018] According to one aspect of the embodiments of this application, the first conductive portion includes a first connection end and a second connection end disposed opposite to each other, a plurality of first connection ends of a plurality of first conductive portions are disposed on a first edge of a first functional sub-block, and a plurality of second connection ends of a plurality of first conductive portions are disposed on a second edge of an adjacent first functional sub-block disposed opposite to each other.

[0019] According to one aspect of the embodiments of this application, the first electromagnetic electrode and the second electromagnetic electrode further include a plurality of second conductive portions, the second conductive portions being electrically connected to a second functional sub-block, the grid wiring density of the second functional sub-block being greater than the grid wiring density of the second conductive portions, and the orthographic projection of the second conductive portions on the substrate at least partially overlapping the orthographic projection of the first functional sub-block on the substrate.

[0020] According to one aspect of the embodiments of this application, two adjacent second functional sub-blocks are electrically connected by a plurality of second conductive parts.

[0021] According to one aspect of the embodiments of this application, the second conductive portion includes a third connection end and a fourth connection end, the plurality of third connection ends of the plurality of second conductive portions are disposed on the third edge of a second functional sub-block, and the plurality of fourth connection ends of the plurality of second conductive portions are disposed on the fourth edges of adjacent second functional sub-blocks disposed opposite each other.

[0022] According to one aspect of the embodiments of this application, the first touch electrode, the second touch electrode, the first electromagnetic electrode, and the second electromagnetic electrode are a grid wiring structure. The first electromagnetic electrode and the second electromagnetic electrode further include a plurality of extensions. The extensions are electrically connected to the second functional sub-block. The grid wiring density of the extensions is the same as the grid wiring density of the second functional sub-block. The orthographic projection of the extensions on the substrate and the orthographic projection of the second functional sub-block on the substrate at least partially overlap.

[0023] According to one aspect of the embodiments of this application, the extension is disposed on the same layer as the first electromagnetic electrode or the second electromagnetic electrode, and two adjacent second functional sub-blocks are electrically connected through the extension, and the second functional sub-blocks and the extension constitute an electrode block.

[0024] According to one aspect of the embodiments of this application, the extension is disposed on the same layer as the first electromagnetic electrode, and the orthographic projection of the extension on the substrate at least partially overlaps with the orthographic projection of the second functional sub-block of the second electromagnetic electrode on the substrate.

[0025] According to one aspect of the embodiments of this application, the second functional sub-block and extension of the first electromagnetic electrode include a plurality of first branches, and the second functional sub-block of the second electromagnetic electrode includes a plurality of second branches, wherein the orthographic projection of the first branches on the substrate and the orthographic projection of the second branches on the substrate at least partially overlap.

[0026] According to one aspect of the embodiments of this application, the first branch and the second branch are arranged orthogonally.

[0027] According to one aspect of the embodiments of this application, the first touch electrode and the second touch electrode further include a plurality of bridge portions, the bridge portions being electrically connected between two first functional sub-blocks of the second touch electrode, the two first functional sub-blocks of the second touch electrode being disposed on both sides of the first functional sub-blocks of the first touch electrode, or the bridge portions being electrically connected between two first functional sub-blocks of the second touch electrode, the two first functional sub-blocks of the first touch electrode being disposed on both sides of the first functional sub-blocks of the second touch electrode.

[0028] According to one aspect of the embodiments of this application, the bridge portion is disposed on a different layer from the first touch electrode or the second touch electrode, and the two first functional sub-blocks of the second touch electrode are disposed on the same layer as one first functional sub-block of the first touch electrode, or the two first functional sub-blocks of the first touch electrode are disposed on the same layer as one first functional sub-block of the second touch electrode.

[0029] According to one aspect of the embodiments of this application, the bridge portion is disposed in the same layer as the first electromagnetic electrode.

[0030] According to one aspect of the embodiments of this application, the bridge portion and the second electromagnetic electrode are disposed in the same layer.

[0031] According to one aspect of the embodiments of this application, the first functional sub-block includes a plurality of third branches, and the bridge portion includes a plurality of fourth branches, wherein the orthographic projection of the fourth branches on the substrate at least partially overlaps with the orthographic projection of the third branches on the substrate.

[0032] According to one aspect of the embodiments of this application, the third branch and the fourth branch are arranged orthogonally.

[0033] According to one aspect of the embodiments of this application, the third branch includes a first main branch and a first connecting portion, and the fourth branch includes a second main branch and a second connecting portion. Adjacent first main branches are connected through the first connecting portion, and adjacent second main branches are connected through the second connecting portion. The width of the first main branch and the second main branch is greater than the width of the first connecting portion and the second connecting portion. The orthographic projection of the first main branch on the substrate and the orthographic projection of the second main branch on the substrate are spaced apart. The orthographic projection of the first connecting portion on the substrate and the orthographic projection of the second connecting portion on the substrate at least partially overlap.

[0034] According to one aspect of the embodiments of this application, the touch module further includes an insulating layer disposed between the touch electrode unit and the electromagnetic coil unit, wherein the touch electrode unit and the electromagnetic coil unit are electrically insulated from each other through the insulating layer.

[0035] According to one aspect of the embodiments of this application, the touch module further includes a protective layer, which is disposed on the side of the touch electrode unit or the electromagnetic coil unit away from the substrate, and the orthographic projection of the protective layer on the substrate at least partially overlaps with the orthographic projection of the touch electrode unit on the substrate or the orthographic projection of the electromagnetic coil unit on the substrate.

[0036] Secondly, according to an embodiment of this application, a touch module is provided, including: a substrate, a touch electrode unit, and an electromagnetic coil unit. The touch electrode unit includes a touch electrode, and the electromagnetic coil unit includes a first electromagnetic electrode and a second electromagnetic electrode. The touch electrode unit and the electromagnetic coil unit are disposed on one side of the substrate. The first electromagnetic electrode, the second electromagnetic electrode, and the touch electrode are disposed on different layers, or the touch electrode is disposed on the same layer as at least one of the first electromagnetic electrode and the second electromagnetic electrode. At least one of the touch electrode unit and the electromagnetic coil unit is arranged in an array to form a grid frame, and the other is at least partially filled in the gap formed by the grid frame. Alternatively, the touch electrode unit and the electromagnetic coil unit are arranged in an array, and the touch electrode unit and the electromagnetic coil unit are staggered in their orthogonal projections on the substrate.

[0037] According to one aspect of the embodiments of this application, the touch electrode includes a first touch electrode and a second touch electrode, the first touch electrode and the second touch electrode are staggered and the first touch electrode is arranged along a first direction, the second touch electrode is arranged along a second direction, and the first direction and the second direction intersect.

[0038] According to one aspect of the embodiments of this application, the first touch electrode and the second touch electrode include a plurality of first functional sub-blocks, and the first electromagnetic electrode and the second electromagnetic electrode include a plurality of second functional sub-blocks. The first functional sub-blocks and the second functional sub-blocks are spaced apart in the orthographic projection of the substrate, and the first functional sub-blocks are arranged along a first direction and a second direction, and the second functional sub-blocks are arranged along the first direction and the second direction.

[0039] According to one aspect of the embodiments of this application, the first electromagnetic electrode and the second electromagnetic electrode further include a plurality of guiding parts, the guiding parts being electrically connected to a second functional sub-block.

[0040] According to one aspect of the embodiments of this application, the second functional sub-block includes a first boundary and a third boundary disposed opposite to each other in a first direction, and the first boundary of one second functional sub-block is electrically connected to the third boundary of another adjacent second functional sub-block arranged along the first direction through a guide portion.

[0041] According to one aspect of the embodiments of this application, the first electromagnetic electrode and the second electromagnetic electrode further include a plurality of extensions, the extensions being electrically connected to a second functional sub-block.

[0042] According to one aspect of the embodiments of this application, the second functional sub-block further includes a second boundary and a fourth boundary disposed opposite to each other in the second direction, and the second boundary of one second functional sub-block is electrically connected to the fourth boundary of another adjacent second functional sub-block arranged along the second direction through an extension.

[0043] Thirdly, according to embodiments of this application, a display device is provided, including a touch module as provided in any of the first or second aspect embodiments of this application. Attached Figure Description

[0044] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0045] Figure 1 This is a schematic diagram of the overall structure of a touch module provided in the first aspect embodiment of this application; Figure 2 This is a schematic diagram of a touch module stacked structure provided in the first aspect embodiment of this application; Figure 3 This is a top view of a partial structure of a touch module provided in the first aspect of this application; Figure 4 yes Figure 3 Enlarged structural diagram of region A in the middle; Figure 5 yes Figure 3 A magnified structural diagram of region B in the middle; Figure 6 yes Figure 3 A magnified structural diagram of region C in the middle; Figure 7 yes Figure 3 A magnified structural diagram of region D in the middle; Figure 8 This is a top view schematic diagram of another touch module structure provided in the first aspect embodiment of this application; Figure 9 yes Figure 8 A magnified structural diagram of region E in the middle; Figure 10 This is a schematic diagram of another touch module stacking structure provided in the first aspect embodiment of this application; Figure 11 This is a top view of a partial structure of another touch module provided in the first aspect embodiment of this application; Figure 12 This is a schematic diagram of another touch module stacking structure provided in the first aspect embodiment of this application; Figure 13 This is a top view of a partial structure of another touch module provided in the first aspect embodiment of this application; Figure 14 This is a schematic diagram of another touch module stacking structure provided in the first aspect embodiment of this application; Figure 15 This is a top view of a partial structure of another touch module provided in the first aspect embodiment of this application; Figure 16 This is a schematic diagram of the structure of a display device provided in the second aspect of this application.

[0046] in: 10-Substrate; 20 - Touch electrode unit; 21 - Touch electrode; 22 - First touch electrode; 23 - Second touch electrode; 211 - First functional sub-block; 212 - First conductive part; 213 - Bridge part; 211a - First edge; 211b - Second edge; 2121 - First connection terminal; 2122 - Second connection terminal; 2111 - Third branch; 2111a - First main trunk; 2111b - First connecting part; 2131 - Fourth branch; 2131a - Second main trunk; 2131b - Second connecting part; 30 - Electromagnetic coil unit; 31 - First electromagnetic electrode; 32 - Second electromagnetic electrode; 33 - Drive circuit; 311-First overlapping portion; 321-Second overlapping portion; 301-Second functional sub-block; 302-Second conductive portion; 303-Extension portion; 304-Electrode block; 305-Guiding portion; 3011-Third edge; 3012-Fourth edge; 3013-First boundary; 3014-Second boundary; 3015-Third boundary; 3016-Fourth boundary; 3021-Third connecting end; 3022-Fourth connecting end; 3001 - First branch; 3002 - Second branch; 40 - Insulation layer; 50 - Protective layer; 100-Touch module; 1000 - Display device; 1001 - Electromagnetic stylus; X - First direction; Y - Second direction; Z - Thickness direction.

[0047] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0048] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0050] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the touch module and display device of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] Currently, touchscreens serve as an integrated input and display device, combining display and control functions. They display and output images through light-emitting elements on the display panel, while simultaneously allowing users to directly input information by tapping the screen using other control elements. Touchscreens offer a variety of input methods. One of the simplest and most convenient human-computer interaction methods is for users to directly touch, drag, and use gestures to manipulate the displayed content with their fingers.

[0052] Currently, the mainstream solution for achieving finger touch control is to use a capacitive touch screen. Its basic principle is to use the change in capacitance to detect the touch position. A capacitive touch screen includes a touch panel and a control circuit. The touch panel forms a capacitor structure through two layers of conductive material or overlapping electrodes, and the control circuit completes touch perception, position detection and subsequent data processing.

[0053] Capacitive touch panels are generally separate modules attached to the display panel, forming a complete display module together with the display panel.

[0054] However, with the continuous development of display technology, people have more and more demands for touch screens, requiring that in addition to being able to use finger touch, touch screens can also be used for touch interaction with electromagnetic active pens.

[0055] Electromagnetic touch mainly uses the change in magnetic flux between an electromagnetic pen and an electromagnetic induction coil to detect the touch position. Therefore, the display device needs to be equipped with components such as an external electromagnetic induction coil.

[0056] Currently, conventional organic light-emitting diode (OLED) display panels use electromagnetic pen technology or capacitive touch technology, which attaches the functional components externally to the backlight side of the display panel. The electromagnetic module components or capacitive touch panel together with the display panel form a complete display module. This results in a thicker display module, which is not conducive to folding and has low integration.

[0057] Existing technology embeds external functional components of electromagnetic module elements into capacitive touch panels. As a result, the electromagnetic module elements and the functional components in the capacitive touch panels are too close together, causing mutual interference and resulting in excessive load on both electromagnetic and capacitive touch functions.

[0058] Based on considerations for solving the above problems and technical needs, this application proposes a touch module.

[0059] To better understand this application, the following will be combined with... Figures 1 to 15 The touch module 100 of the present application embodiment will be described in detail.

[0060] Figure 1 This illustration shows the overall structure of a touch module 100 provided in the first aspect embodiment of this application. Figure 2 This application illustrates a layered structure of a touch module 100 according to an embodiment of the present application. Figure 3 The diagram shows a top view of a portion of the structure of a touch module 100 provided in an embodiment of this application.

[0061] Please see Figures 1 to 3In one aspect, embodiments of this application provide a touch module 100, including a substrate 10, a touch electrode unit 20, and an electromagnetic coil unit 30.

[0062] The touch electrode unit 20 includes a touch electrode 21, and the electromagnetic coil unit 30 includes a first electromagnetic electrode 31 and a second electromagnetic electrode 32. The touch electrode unit 20 and the electromagnetic coil unit 30 are disposed on one side of the substrate 10. The first electromagnetic electrode 31 and the second electromagnetic electrode 32 are disposed on different layers from the touch electrode 21, or the touch electrode 21 is disposed on the same layer as at least one of the first electromagnetic electrode 31 and the second electromagnetic electrode 32. The orthographic projection of the touch electrode unit 20 on the substrate 10 is offset from the orthographic projection of the electromagnetic coil unit 30 on the substrate 10.

[0063] The touch module 100 provided in this application embodiment utilizes the first electromagnetic electrode 31 and the second electromagnetic electrode 32 to be disposed on different layers from the touch electrode, or at least one of them is disposed on the same layer as the touch electrode 21. While integrating the touch electrode unit 20 and the electromagnetic coil unit 30 into one touch module 100, by staggering the orthographic projections of the touch electrode unit 20 and the electromagnetic coil unit 30 on the substrate 10, the distance between the touch electrode unit 20 and the electromagnetic coil unit 30 is increased, and the coupling capacitance between the touch electrode unit 20 and the electromagnetic coil unit 30 is reduced, thereby effectively reducing the load of the touch module 100 and ultimately improving the performance of the touch module 100.

[0064] In the touch module 100, the substrate 10 mainly serves as a support and load-bearing element. Other film layers are stacked on the substrate 10. This stacking refers to the arrangement of one, two, or more other film layers within a horizontal plane perpendicular to the thickness direction Z, and then stacked along the thickness direction Z of the substrate 10. The substrate 10 may include multiple film layer structures, including but not limited to protective film layers, insulating film layers, and coil structures. This application does not limit the specific film layer structures and the composition of the film layer structure of the substrate 10. Furthermore, the thickness direction Z of other film layers located on one side of the substrate 10 is generally consistent with the thickness direction Z of the substrate 10 itself. Therefore, for ease of description, the thickness direction Z of the substrate 10 or other film layers mentioned later in this application will all be shown in the same direction.

[0065] It should be noted that, Figure 1 The structure shown only briefly illustrates the relative positional relationships between the electromagnetic coil unit 30, the touch electrode unit 20, and the wiring structure connected to the electromagnetic coil unit 30 and the touch electrode unit 20 in the planar direction of the touch module 100. Figure 2The structure shown only briefly illustrates the layering relationship of the touch module 100 along the thickness direction Z, used to explain the relative positional relationship of the touch electrode 21, the first electromagnetic electrode 31, and the second electromagnetic electrode 32 along the thickness direction Z. The mutual occlusion and overlap relationships of the various film layers and structures within the touch module 100 in the planar direction are not discussed further. Figure 1 and Figure 2 It is not shown in detail in the document.

[0066] The touch electrode unit 20 is used to implement capacitive touch function. Capacitive touch is a method for users to control the displayed content when they touch the touch module 100 of the display panel with their fingers. Capacitive touch includes two types: self-capacitive touch and mutual capacitive touch. Therefore, the touch electrode unit 20 that implements capacitive touch also has two different structures.

[0067] The touch electrode unit 20 that realizes self-capacitive touch includes at least one touch electrode 21. The touch electrode 21 and ground form a capacitor. When a finger touches the touch module 100, the capacitance of the finger will be superimposed on the capacitance of the screen, thereby increasing the capacitance of the screen and detecting the change in capacitance and detecting the touch position.

[0068] At this time, the touch electrode unit 20 may include only one touch electrode 21, which is disposed in a different layer from the first electromagnetic electrode 31 and the second electromagnetic electrode 32 in the touch module 100.

[0069] Meanwhile, the touch electrode unit 20 that realizes mutual capacitance touch includes at least two types of touch electrodes 21. The two types of touch electrodes 21 form a capacitance between themselves. When a finger touches the touch module 100, the capacitance of the finger will be superimposed on the capacitance formed between the two electrodes, thereby increasing the capacitance between the two electrodes and detecting the capacitance change and the touch position.

[0070] Therefore, the touch electrode unit 20 includes at least two types of touch electrodes 21. The touch electrodes 21 can be configured such that both types of touch electrodes 21 are disposed on different layers from the first electromagnetic electrode 31 and the second electromagnetic electrode 32 in the touch module 100, or one type of touch electrode 21 is disposed on a different layer from the first electromagnetic electrode 31 and the second electromagnetic electrode 32 in the touch module 100, and the other type of touch electrode 21 is disposed on the same layer as at least one of the first electromagnetic electrode 31 and the second electromagnetic electrode 32, or the two types of touch electrodes 21 are disposed on the same layer as the first electromagnetic electrode 31 and the second electromagnetic electrode 32, respectively.

[0071] The stacking relationship between the touch electrode unit 20 and the electromagnetic coil unit 30 will be further explained in other embodiments of the first aspect of this application.

[0072] For example, in a typical setup, regardless of whether a self-capacitive or mutual-capacitive touch scheme is used, the touch electrode unit 20 includes a horizontal electrode array and a vertical electrode array.

[0073] The embodiments of this application do not limit the type and arrangement of the touch electrode unit 20, and include at least the four arrangement methods mentioned above.

[0074] For example, the material of the touch electrode 21 includes copper (Cu), silver (Ag), aluminum (Al), molybdenum (Mo), etc., or it can be an alloy material, such as titanium aluminum alloy (TiALTi), copper nickel alloy (CuNi), aluminum molybdenum alloy (MoAlMo), etc., and the embodiments of this application do not limit it.

[0075] Similarly, the electromagnetic coil unit 30 covers the touch module 100 by setting two electromagnetic electrodes in different directions, and detects the contact position of the electromagnetic pen by detecting the change in magnetic flux of the electromagnetic electrodes.

[0076] For example, in a typical configuration, the first electromagnetic electrode 31 is arranged side by side in the second direction Y, and the second electromagnetic electrode 32 is arranged side by side in the first direction X.

[0077] The first electromagnetic electrode 31 and the second electromagnetic electrode 32 can be staggered. Here, "staggered" should be understood as the two electromagnetic electrodes extending along two intersecting directions being insulated from each other to prevent the two coils from bridging each other and forming a short circuit.

[0078] The first electromagnetic electrode 31 and the second electromagnetic electrode 32 can also be arranged in the same layer. Here, "arranged in the same layer" should be understood as two electromagnetic electrodes extending along two intersecting directions being arranged in the same layer. The first electromagnetic electrode 31 and the second electromagnetic electrode 32 need to be disconnected at the overlapping position of the orthogonal projection of the substrate 10 to avoid short circuit. It can be set to disconnect the first electromagnetic electrode 31 and set a connection structure in other structural layers to conduct the disconnection point of the first electromagnetic electrode 31, or it can be set to disconnect the second electromagnetic electrode 32 and set a connection structure in other structural layers to conduct the disconnection point of the second electromagnetic electrode 32.

[0079] The embodiments of this application do not limit the type and arrangement of the electromagnetic coil unit 30, and include at least the three arrangement methods mentioned above.

[0080] The electromagnetic coil unit 30 may further include a first overlapping portion 311, in which multiple first electromagnetic electrodes 31 arranged side by side in the second direction Y are connected in a toothed arrangement through the first overlapping portion 311. Here, "toothed arrangement" means that two first electromagnetic electrodes 31 are connected to form a path through the first overlapping portion 311, the end of one of the first electromagnetic electrodes 31 is connected to the first electromagnetic electrode 31 in the next row, and the first electromagnetic electrodes 31 in the next row of multiple sets of two first electromagnetic electrodes 31 connected through the first overlapping portion 311 are connected to the same driving circuit 33. Any two first electromagnetic electrodes 31 form multiple coils arranged along the second direction Y through the driving circuit 33, covering the entire touch module 100.

[0081] For example, in this embodiment, the driving circuit 33 is located on the same side as the first overlapping portion 311. It is understood that the driving circuit 33 can also be located on the opposite side from the first overlapping portion 311. For ease of explanation and clarity, this embodiment selects the arrangement of the first overlapping portion 311 and the driving circuit 33 on the same side, and does not limit the arrangement of the driving circuit 33 and the first overlapping portion 311.

[0082] Similarly, multiple second electromagnetic electrodes 32 arranged side by side in the first direction X are connected by the second overlapping part 321 and distributed in a tooth-like manner. Any two second electromagnetic electrodes 32 are connected by the driving circuit 33 to form multiple coils arranged along the first direction X, covering the entire touch module 100.

[0083] It is understood that the embodiments in this application are only for the convenience of illustration, and the first direction X and the second direction Y are specified, but in fact, no limitation is imposed on them.

[0084] For example, the materials of the first electromagnetic electrode 31 and the second electromagnetic electrode 32 include copper (Cu), silver (Ag), aluminum (Al), molybdenum (Mo), etc., or alloy materials, such as titanium aluminum alloy (TiALTi), copper nickel alloy (CuNi), aluminum molybdenum alloy (MoAlMo), etc., and the embodiments of this application do not limit this.

[0085] The touch electrode unit 20 and the electromagnetic coil unit 30 are staggered in their orthographic projections onto the substrate 10. "Staggered" should be understood as meaning that the predetermined distance between the centers of the orthographic projections of the touch electrode unit 20 and the electromagnetic coil unit 30 onto the substrate 10 is greater than 0. This arrangement can include a configuration where the orthographic projections of the touch electrode unit 20 and the electromagnetic coil unit 30 do not overlap at all, or a configuration where the centers of the orthographic projections of the touch electrode unit 20 and the electromagnetic coil unit 30 are at least staggered. It is not necessary to use a configuration where the entire structure of the touch electrode unit 20 and the electromagnetic coil unit is staggered; this can still achieve the effect of reducing the load, and this application does not limit this aspect.

[0086] By staggering the orthographic projections of the touch electrode unit 20 and the electromagnetic coil unit 30 on the substrate 10, compared to the stacked arrangement of the touch electrode unit 20 and the electromagnetic coil unit 30, the distance between the touch electrode unit 20 and the electromagnetic coil unit 30 is increased. This further reduces the coupling capacitance between the touch electrode unit 20 and the electromagnetic coil unit 30, thereby effectively reducing the load on the touch module 100 and ultimately improving the performance of the touch module 100.

[0087] In some embodiments, the touch electrode 21 includes a first touch electrode 22 and a second touch electrode 23, and at least two of the first touch electrode 22, the second touch electrode 23, the first electromagnetic electrode 31 and the second electromagnetic electrode 32 are disposed in the same layer.

[0088] In these embodiments, the touch module 100 provided in this application further improves the integration of the touch module 100 and further reduces the thickness and cost of the touch module 100 by setting at least two of the four electrodes in the same layer.

[0089] Figure 14 This invention illustrates another layered structure of a touch module 100 provided in the first aspect embodiment of this application. Figure 15 The diagram shows a top view of a portion of the structure of another touch module 100 provided in the first aspect embodiment of this application.

[0090] Please see Figure 14 and Figure 15 In some optional embodiments, the first electromagnetic electrode 31 and the second electromagnetic electrode 32 are disposed in the same layer.

[0091] In these optional embodiments, the touch module 100 provided in this application embodiment can reduce the thickness of the touch module 100 by setting the first electromagnetic electrode 31 and the second electromagnetic electrode 32 in the same layer, and is beneficial to improving the bending performance of the touch module 100.

[0092] To avoid short circuits, the first electromagnetic electrode 31 and the second electromagnetic electrode 32 need to be disconnected at the overlapping position of their orthogonal projections on the substrate 10. This can be achieved by disconnecting the first electromagnetic electrode 31 and providing a connection structure on the same layer as the first touch electrode 22 or the second touch electrode 23 to make the disconnection point of the first electromagnetic electrode 31 conductive. Alternatively, the second electromagnetic electrode 32 can be disconnected and provided on the same layer as the first touch electrode 22 or the second touch electrode 23 to make the disconnection point of the second electromagnetic electrode 32 conductive.

[0093] Please see Figure 2 and Figure 3 In some optional embodiments, the first touch electrode 22 and the second touch electrode 23 are disposed on the same layer.

[0094] In these optional embodiments, the touch module 100 provided in this application can reduce the thickness of the touch module 100 by setting the first touch electrode 22 and the second touch electrode 23 in the same layer. At the same time, the touch electrode unit 20 in the touch module 100 can utilize the existing capacitive touch structure, further reducing the cost of the touch module 100.

[0095] Figure 10 This invention illustrates another layered structure of a touch module 100 provided in the first aspect embodiment of the present application. Figure 11 The diagram shows a top view of a portion of the structure of another touch module 100 provided in the first aspect embodiment of this application.

[0096] Please see Figure 10 and Figure 11 In some optional embodiments, one of the first touch electrode 22 and the second touch electrode 23 is disposed in the same layer as one of the first electromagnetic electrode 31 and the second electromagnetic electrode 32.

[0097] In these optional embodiments, the touch module 100 provided in this application can reduce the thickness of the touch module 100 by arranging one of the first touch electrode 22 and the second touch electrode 23 in the touch electrode unit 20 and one of the first electromagnetic electrode 31 and the second electromagnetic electrode 32 in the electromagnetic coil unit 30 in the same layer. At the same time, it can increase the distance between the first touch electrode 22 and the second touch electrode 23 in the touch electrode unit 20 and the distance between the first electromagnetic electrode 31 and the second electromagnetic electrode 32 in the electromagnetic coil unit 30. This reduces the capacitance inside the touch electrode unit 20 and the electromagnetic coil unit 30, and can effectively improve the sensitivity of the touch electrode unit 20 and the electromagnetic coil unit 30 in the touch module 100, thereby improving the overall performance of the touch module 100.

[0098] It should be noted that, Figure 10The structure shown only briefly illustrates the layering relationship of the touch module 100 along the thickness direction Z, used to explain the relative positional relationship of the touch electrode 21, the first electromagnetic electrode 31, and the second electromagnetic electrode 32 along the thickness direction Z. The mutual occlusion and overlap relationships of the various film layers and structures within the touch module 100 in the planar direction are not discussed further. Figure 10 It is not shown in detail in the document.

[0099] Please continue reading. Figure 10 and Figure 11 In some optional embodiments, the first touch electrode 22 and the first electromagnetic electrode 31 are disposed on the same layer.

[0100] In these optional embodiments, the touch module 100 provided in this application reduces the thickness of the touch module 100 by setting the first touch electrode 22 and the first electromagnetic electrode 31 in the same layer, while reducing the fabrication of additional connection structures and further reducing the cost of the touch module 100.

[0101] Optionally, the second touch electrode 23 and the second electromagnetic electrode 32 are disposed on the same layer. Figure 12 This invention illustrates another layered structure of a touch module 100 provided in the first aspect embodiment of the present application. Figure 13 The diagram shows a top view of a portion of the structure of another touch module 100 provided in the first aspect embodiment of this application.

[0102] Please see Figure 12 and Figure 13 In some optional embodiments, the first touch electrode 22 is disposed in the same layer as one of the first electromagnetic electrode 31 and the second electromagnetic electrode 32, and the second touch electrode 23 is disposed in the same layer as the other of the first electromagnetic electrode 31 and the second electromagnetic electrode 32.

[0103] In these optional embodiments, the touch module 100 provided in this application further reduces the thickness of the touch module 100 by setting the first touch electrode 22 and the second touch electrode 23 to correspond to at least one of the first electromagnetic electrode 31 and the second electromagnetic electrode 32 in the electromagnetic coil unit 30, respectively, by setting two layers of electrodes set in the same layer.

[0104] It should be noted that, Figure 12 The structure shown only briefly illustrates the layering relationship of the touch module 100 along the thickness direction Z, used to explain the relative positional relationship of the touch electrode 21, the first electromagnetic electrode 31, and the second electromagnetic electrode 32 along the thickness direction Z. The mutual occlusion and overlap relationships of the various film layers and structures within the touch module 100 in the planar direction are not discussed further. Figure 12 It is not shown in detail in the document.

[0105] Please continue reading. Figure 12 and Figure 13 In some optional embodiments, the first touch electrode 22 is disposed on the same layer as the first electromagnetic electrode 31, and the second touch electrode 23 is disposed on the same layer as the second electromagnetic electrode 32.

[0106] In these optional embodiments, the touch module 100 provided in this application further reduces the thickness of the touch module 100 and reduces the fabrication of additional connection structures by setting the first touch electrode 22 and the first electromagnetic electrode 31 in the same layer, and setting the second touch electrode 23 and the second electromagnetic electrode 32 in the same layer respectively. This further reduces the cost of the touch module 100.

[0107] Optionally, the first touch electrode 22 can also be disposed in the same layer as the second electromagnetic electrode 32, and the second touch electrode 23 can also be disposed in the same layer as the first electromagnetic electrode 31, which also achieves the effect of reducing the fabrication of additional connection structures, thereby further reducing the cost of the touch module 100.

[0108] Please see Figure 3 In some embodiments, the first touch electrode 22 and the second touch electrode 23 include a plurality of first functional sub-blocks 211, and the first electromagnetic electrode 31 and the second electromagnetic electrode 32 include a plurality of second functional sub-blocks 301. The first functional sub-blocks 211 and the second functional sub-blocks 301 are spaced apart in the orthographic projection of the substrate 10.

[0109] In these optional embodiments, the touch module 100 provided in this application increases the distance between the first functional sub-block 211 and the second functional sub-block 301 by staggering the orthographic projections of the first functional sub-block 211 and the second functional sub-block 301 on the substrate 10, thereby reducing the coupling capacitance between the first functional sub-block 211 and the second functional sub-block 301, thereby effectively reducing the load of the touch module 100 and improving the performance of the touch module 100.

[0110] The first touch electrode 22 and the second touch electrode 23 in the touch electrode unit 20 are both block-shaped. For example, the shape of the first touch electrode 22 and the second touch electrode 23 can be rhomboid or square. This application embodiment does not limit the shape.

[0111] "Interval setting" should be understood as the distance between the boundaries of the orthographic projections of the first functional sub-block 211 and the second functional sub-block 301 on the substrate 10 being greater than or equal to 0, and the orthographic projections of the first functional sub-block 211 and the second functional sub-block 301 on the substrate 10 having no overlapping parts.

[0112] Therefore, in the touch electrode unit 20, the first functional sub-block 211, which is configured as a block shape, is arranged in the orthographic projection of the first touch electrode 22 and the second touch electrode 23 on the substrate 10 and is spaced apart from the structure of the electromagnetic coil unit 30 in the orthographic projection of the substrate 10, which can reduce the load on the first functional sub-block 211 that plays the main functional role.

[0113] In the electromagnetic coil unit 30, the first electromagnetic electrode 31 and the second electromagnetic electrode 32, which play a major role, are generally long strips or coils. However, in this embodiment, the first electromagnetic electrode 31 and the second electromagnetic electrode 32 are formed by connecting multiple block-shaped second functional sub-blocks 301 with other structures.

[0114] Therefore, in the electromagnetic coil unit 30, the second functional sub-block 301, which is a block-shaped structure of the first electromagnetic electrode 31 and the second electromagnetic electrode 32, is positioned at an interval from the first functional sub-block 211 of the touch electrode unit 20 in the orthogonal projection on the substrate 10, thereby reducing the load on the second functional sub-block 301, which plays a major functional role.

[0115] Optionally, the orthographic projections of the first functional sub-block 211 and the second functional sub-block 301 on the substrate 10 can be staggered, which can also effectively reduce the load on the first functional sub-block 211 and the second functional sub-block 301 and improve the performance of the touch module 100.

[0116] Figure 4 It shows Figure 3 An enlarged structure of region A in the diagram.

[0117] Please continue reading. Figure 3 and Figure 4 In some embodiments, the first touch electrode 22, the second touch electrode 23, the first electromagnetic electrode 31 and the second electromagnetic electrode 32 are grid wiring structures. The first touch electrode 22 and the second touch electrode 23 also include a plurality of first conductive parts 212. The first conductive parts 212 are electrically connected to the first functional sub-block 211. The grid wiring density of the first functional sub-block 211 is greater than the grid wiring density of the first conductive parts 212. The orthographic projection of the first conductive parts 212 on the substrate 10 at least partially overlaps with the orthographic projection of the second functional sub-block 301 on the substrate 10.

[0118] In these embodiments, the touch module 100 provided in this application provides a first conductive portion 212 with a small grid wiring density to connect the first functional sub-block 211 in the portion where the first touch electrode 22 and the second touch electrode 23 overlap with the second functional sub-block 301 on the substrate 10. This ensures normal electrical connection between the first touch electrode 22 and the second touch electrode 23 of the touch electrode unit 20, while further reducing the coupling capacitance between the touch electrode unit 20 and the electromagnetic coil unit 30, further effectively reducing the load of the touch module 100, and ultimately further improving the performance of the touch module 100.

[0119] The mesh wiring structure should be understood as follows: when fabricating the electrode structures of the touch electrode unit 20 and the electromagnetic coil unit 30 on the entire substrate 10, a layer of metal mesh wiring is interrupted. The gaps between the metal meshes are large enough to accommodate the light-emitting structure of the pixels without affecting the normal light-emitting function of the display panel. The mesh wiring structure, which consists of multiple interspersed and insulated sections formed after interrupting the entire mesh wiring, constitutes the first touch electrode 22, the second touch electrode 23, the first electromagnetic electrode 31, the second electromagnetic electrode 32, and the first conductive part 212, among other structures.

[0120] The first functional sub-blocks 211 need to be connected in the same layer to electrically connect some of the first functional sub-blocks 211 in the same layer. Since the first functional sub-blocks 211 and the second functional sub-blocks 301 are offset in their orthogonal projections on the substrate 10, the connection structure will at least partially overlap with the orthogonal projection of the second functional sub-blocks 301 on the substrate 10.

[0121] By setting the first conductive part 212 with a grid wiring density lower than that of the first functional sub-block 211, the electrical connection requirements of some of the first functional sub-blocks 211 can be met, while the load on the touch module 100 can be further reduced and the performance of the touch module 100 can be improved.

[0122] Please continue reading. Figure 4 In some optional embodiments, two adjacent first functional sub-blocks 211 are electrically connected by a plurality of first conductive parts 212.

[0123] In these optional embodiments, the touch module 100 provided in this application embodiment ensures the reliability of electrical connection between two adjacent first functional sub-blocks 211 by providing a plurality of first conductive parts 212.

[0124] For example, in this embodiment of the application, the first conductive part 212 is configured as a plurality of narrow strip-shaped patterns, which ensures the reliability of electrical connection and further reduces the overlap area of ​​the first conductive part 212 and the second functional sub-block 301 in the orthographic projection on the substrate 10, thereby further reducing the load and improving performance.

[0125] It is understandable that the first conductive part 212 can also be configured as a wide strip-shaped pattern with a further reduced grid routing density, which can also ensure the reliability of electrical connection and further reduce load and improve performance.

[0126] Please continue reading. Figure 4 In some optional embodiments, the first conductive part 212 includes a first connection end 2121 and a second connection end 2122. The multiple first connection ends 2121 of the multiple first conductive parts 212 are disposed on the first edge 211a of a first functional sub-block 211, and the multiple second connection ends 2122 of the multiple first conductive parts 212 are disposed on the second edges 211b of adjacent first functional sub-blocks 211 disposed opposite to each other.

[0127] In these optional embodiments, the touch module 100 provided in this application further reduces the connection length of the first conductive part 212 by setting the first connection end 2121 and the second connection end 2122 of the first conductive part 212 on the first edge 211a and the second edge 211b of two adjacent first functional sub-blocks 211, thereby ensuring the reliability of electrical connection and further reducing the overlap area of ​​the first conductive part 212 and the second functional sub-block 301 in the orthographic projection on the substrate 10, which can further reduce the load and improve performance.

[0128] Figure 5 It shows Figure 3 The enlarged structure of region B in the image.

[0129] Please see Figure 3 and Figure 5 In some optional embodiments, the first electromagnetic electrode 31 and the second electromagnetic electrode 32 further include a plurality of second conductive portions 302, the second conductive portions 302 being electrically connected to the second functional sub-block 301, the grid wiring density of the first functional sub-block 211 being greater than the grid wiring density of the second conductive portions 302, and the orthographic projection of the second conductive portions 302 on the substrate 10 at least partially overlapping the orthographic projection of the first functional sub-block 211 on the substrate 10.

[0130] In these optional embodiments, the touch module 100 provided in this application embodiment can meet the electrical connection requirements of some of the second functional sub-blocks 301 by setting the second conductive part 302 with a grid wiring density lower than that of the second functional sub-block 301, while further reducing the load of the touch module 100 and improving the performance of the touch module 100.

[0131] The specific arrangement of the second conductive part 302 is the same as that of the first conductive part 212, and will not be described again here.

[0132] Please continue reading. Figure 5In some alternative embodiments, the second functional sub-blocks 301 are electrically connected to each other via a plurality of second conductive parts 302.

[0133] In these optional embodiments, the present application provides a touch module 100, which ensures the reliability of electrical connection between two adjacent second functional sub-blocks 301 by providing a plurality of second conductive parts 302.

[0134] The specific graphic shape and arrangement of the second conductive part 302 are the same as those of the first conductive part 212, and will not be described again here.

[0135] Please continue reading. Figure 5 In some optional embodiments, the second conductive part 302 includes a third connection end 3021 and a fourth connection end 3022. The multiple third connection ends 3021 of the multiple second conductive parts 302 are disposed on the third edge 3011 of a second functional sub-block 301, and the multiple fourth connection ends 3022 of the multiple second conductive cloth are disposed on the fourth edge 3012 of the adjacent second functional sub-block 301.

[0136] In these optional embodiments, the touch module 100 provided in this application further reduces the connection length of the second conductive part 302 by setting the third connection end 3021 and the fourth connection end 3022 of the second conductive part 302 on the third edge 3011 and the fourth edge 3012 of two adjacent second functional sub-blocks 301 that are disposed opposite each other. This ensures the reliability of electrical connection and further reduces the overlap area of ​​the second conductive part 302 and the first functional sub-block 211 in the orthographic projection on the substrate 10, thereby further reducing the load and improving performance.

[0137] Figure 8 The diagram shows a top view of another touch module 100 provided in an embodiment of this application.

[0138] Please see Figure 8 In some embodiments, the first touch electrode 22, the second touch electrode 23, the first electromagnetic electrode 31 and the second electromagnetic electrode 32 are grid wiring structures. The first electromagnetic electrode 31 and the second electromagnetic electrode 32 also include a plurality of extensions 303. The extensions 303 are electrically connected to the second functional sub-block 301. The grid wiring density of the extensions 303 is the same as that of the second functional sub-block 301. The orthographic projection of the extensions 303 on the substrate 10 at least partially overlaps with the orthographic projection of the second functional sub-block 301 on the substrate 10.

[0139] In these embodiments, the touch module 100 provided in this application provides an extension 303 to electrically connect a portion of the second functional sub-blocks 301. The extension 303 does not overlap with the orthographic projection of structures other than the second functional sub-blocks 301 of the first electromagnetic electrode 31 and the second electromagnetic electrode 32 on the substrate 10. The extension 303 only overlaps with the orthographic projection of the second functional sub-blocks 301 disposed in different layers on the substrate 10. While reducing the resistance of the first electromagnetic electrode 31 and the second electromagnetic electrode 32 to reduce the load, no additional load is added, thereby improving the performance of the touch module 100.

[0140] In some optional embodiments, the extension 303 is disposed on the same layer as the first electromagnetic electrode 31 or the second electromagnetic electrode 32, and two adjacent second functional sub-blocks 301 are electrically connected through the extension 303. The second functional sub-blocks 301 and the extension 303 constitute an electrode block 304.

[0141] In these optional embodiments, the touch module 100 provided in this application embodiment can have its extension 303 disposed on the same layer as the first electromagnetic electrode 31 or the second electromagnetic electrode 32 and form an electrode block 304 with the second functional sub-block 301. The extension 303 can reduce the resistance of the first electromagnetic electrode 31 or the second electromagnetic electrode 32 to reduce the load and further improve the performance of the touch module 100.

[0142] Please continue reading. Figure 8 In some optional embodiments, the extension 303 is disposed on the same layer as the first electromagnetic electrode 31, and the orthographic projection of the extension 303 on the substrate 10 at least partially overlaps with the orthographic projection of the second functional sub-block 301 of the second electromagnetic electrode 32 on the substrate 10.

[0143] In these optional embodiments, the touch module 100 provided in this application provides an extension 303 connected to the second functional sub-block 301 of the first electromagnetic electrode 31. The orthographic projection of the extension 303 on the substrate 10 at least partially overlaps with the orthographic projection of the second functional sub-block 301 of the second electromagnetic electrode 32. The extension 303 reduces the resistance of the first electromagnetic electrode 31 to reduce the load without adding extra load between it and the touch electrode 21, thereby further improving the performance of the touch module 100.

[0144] Optionally, the extension 303 may also be disposed on the same layer as the second electromagnetic electrode 32, and the orthographic projection of the extension 303 on the substrate 10 at least partially overlaps with the orthographic projection of the second functional sub-block 301 of the second electromagnetic electrode 32 on the substrate 10.

[0145] Figure 6 It shows Figure 3 An enlarged structure of region C in the diagram.

[0146] Please see Figure 6 In some embodiments, the second functional sub-block 301 and extension 303 of the first electromagnetic electrode 31 include a plurality of first branches 3001, and the second functional sub-block 301 of the second electromagnetic electrode 32 includes a plurality of second branches 3002. The orthographic projection of the first branches 3001 on the substrate 10 and the orthographic projection of the second branches 3002 on the substrate 10 at least partially overlap.

[0147] In these embodiments, the electromagnetic coil unit 30 preferably adopts a design that adds conductive structures such as extensions 303, thereby reducing the load by lowering the resistance, and the design in which the first branch 3001 and the second branch 3002 overlap does not add additional load between the touch electrode 21, thereby further improving the performance of the touch module 100.

[0148] Optionally, a single second functional sub-block 301 and a single extension 303 of the first electromagnetic electrode 31 are composed of no more than 10 first branches 3001, and a single second functional sub-block 301 of the second electromagnetic electrode 32 is composed of no more than 10 second branches 3002.

[0149] Please continue reading. Figure 6 In some alternative embodiments, the first branch 3001 and the second branch 3002 are arranged orthogonally.

[0150] In these alternative embodiments, the first branch 3001 and the second branch 3002 are orthogonally arranged, and the overlapping area of ​​the first branch 3001 and the second branch 3002 can be further reduced, thereby further reducing the load.

[0151] Optionally, since the electromagnetic coil unit has a grid-like wiring structure, both the first branch 3001 and the second branch 3002 are electrode patterns formed by the grid-like wiring structure. By further adjusting the relative positional relationship between the first branch 3001 and the second branch 3002, the overlapping area of ​​the grid-like wiring patterns of the first branch 3001 and the second branch 3002 can be further reduced, thereby further reducing the load. Please refer to [link / reference]. Figure 3 In some embodiments, the first touch electrode 22 and the second touch electrode 23 further include a plurality of bridge portions 213, which are electrically connected between two first functional sub-blocks 211 of the second touch electrode 23. The two first functional sub-blocks 211 of the second touch electrode 23 are disposed on both sides of the first functional sub-blocks 211 of the first touch electrode 22. Alternatively, the bridge portions 213 are electrically connected between two first functional sub-blocks 211 of the second touch electrode 23, and the two first functional sub-blocks 211 of the first touch electrode 22 are disposed on both sides of the first functional sub-blocks 211 of the second touch electrode 23.

[0152] In these embodiments, the bridge portion 213 can further reduce the load between the first functional sub-block 211 of the first touch electrode 22 and the second touch electrode 23 in the touch electrode 21, thereby further reducing the parasitic capacitance in the touch electrode 21, and thus improving the sensitivity and accuracy of the touch module 100.

[0153] In some optional embodiments, the bridge portion 213 is disposed on a different layer from the first touch electrode 22 or the second touch electrode 23, and the two first functional sub-blocks 211 of the second touch electrode 23 are disposed on the same layer as one first functional sub-block 211 of the first touch electrode 22, or the two first functional sub-blocks 211 of the first touch electrode 22 are disposed on the same layer as one first functional sub-block 211 of the second touch electrode 23.

[0154] In these optional embodiments, the touch module 100 provided in this application embodiment can connect the first functional sub-block 211 of the first touch electrode 22 or the second touch electrode 23 in the same layer when there is insufficient space in the same layer, by setting the bridge part 213, thereby ensuring the electrical connection effect.

[0155] Figure 3 The image only shows the bridge section 213 crossing the first functional sub-block 211 of the first touch electrode 22 to connect to the first functional sub-block 211 of the adjacent second touch electrode 23. It is easy to understand that the bridge section 213 can also cross the first functional sub-block 211 of the second touch electrode 23 to connect to the first functional sub-block 211 of the adjacent first touch electrode 22.

[0156] In some alternative embodiments, the bridge portion 213 is disposed on the same layer as the first electromagnetic electrode 31.

[0157] In these optional embodiments, the touch module 100 provided in this application reduces costs by setting the bridge portion 213 and the first electromagnetic electrode 31 in the same layer, utilizing the existing first electromagnetic electrode 31, reusing the existing film layer structure.

[0158] In some alternative embodiments, the bridge portion 213 is disposed on the same layer as the second electromagnetic electrode 32.

[0159] In these optional embodiments, the touch module 100 provided in this application reduces costs by setting the bridge portion 213 and the second electromagnetic electrode 32 in the same layer, utilizing the existing second electromagnetic electrode 32, reusing the existing film layer structure.

[0160] Figure 7 It shows Figure 3 The magnified structure of region D in the middle.

[0161] Please see Figure 7In some embodiments, the first functional sub-block 211 includes a plurality of third branches 2111, and the bridge portion 213 includes a plurality of fourth branches 2131. The orthographic projection of the fourth branches 2131 on the substrate 10 at least partially overlaps with the orthographic projection of the third branches 2111 on the substrate 10.

[0162] In these embodiments, the touch electrode unit 20 preferentially adopts a design that reduces the conductive structure, such as the bridge portion 213, to reduce the load by reducing the overlapping area between the touch electrodes 21, and the design of the first branch 3001 and the second branch 3002 overlapping does not increase the load between the touch module 100 and the electromagnetic coil unit 30, thereby further improving the performance of the touch module 100.

[0163] Optionally, each first functional sub-block 211 of the first touch electrode 22 and the second touch electrode 23 is composed of no more than 10 third branches 2111, and the bridge portion 213 is composed of no more than 10 fourth branches 2131.

[0164] Please continue reading. Figure 7 In some alternative embodiments, the third branch 2111 and the fourth branch 2131 are arranged orthogonally.

[0165] In these alternative embodiments, the third branch 2111 and the fourth branch 2131 are orthogonally arranged, and the overlapping area of ​​the third branch 2111 and the fourth branch 2131 can be further reduced, thereby further reducing the load.

[0166] Please continue reading. Figure 7 In some optional embodiments, the third branch 2111 includes a first main stem 2111a and a first connecting portion 2111b, and the fourth branch 2131 includes a second main stem 2131a and a second connecting portion 2131b. Adjacent first main stems 2111a are connected by the first connecting portion 2111b, and adjacent second main stems 2131a are connected by the second connecting portion 2131b. The width of the first main stem 2111a and the second main stem 2131a is greater than the width of the first connecting portion 2111b and the second connecting portion 2131b. The orthographic projection of the first main stem 2111a on the substrate 10 and the orthographic projection of the second main stem 2131a on the substrate 10 are spaced apart. The orthographic projection of the first connecting portion 2111b on the substrate 10 and the orthographic projection of the second connecting portion 2131b on the substrate 10 at least partially overlap.

[0167] In these alternative embodiments, the third branch 2111 and the fourth branch 2131 are spaced apart by the first main trunk 2111a and the second main trunk 2131a, and only the first connecting portion 2111b and the second connecting portion 2131b overlap, further reducing the overlapping area and further reducing the load.

[0168] Please see Figure 2 In some embodiments, the touch module 100 further includes an insulating layer 40, which is disposed between the touch electrode unit 20 and the electromagnetic coil unit 30, and the touch electrode unit 20 and the electromagnetic coil unit 30 are electrically insulated from each other by the insulating layer 40.

[0169] In these optional embodiments, the touch module 100 provided in this application provides an insulating layer 40 to electrically insulate the electrode structure between the touch electrode unit 20 and the electromagnetic coil unit 30.

[0170] The insulating layer 40 material includes silicon nitride (SiNx), silicon oxide (SiOx), and organic materials, etc. The insulating layer 40 material may also include different combinations of the above materials, which is not limited in this application embodiment.

[0171] Please continue reading. Figure 2 In some optional embodiments, the touch module 100 further includes a protective layer 50, which is disposed on the side of the touch electrode unit 20 or the electromagnetic coil unit 30 away from the substrate 10. The orthographic projection of the protective layer 50 on the substrate 10 at least partially overlaps with the orthographic projection of the touch electrode unit 20 on the substrate 10 or the orthographic projection of the electromagnetic coil unit 30 on the substrate 10.

[0172] In these optional embodiments, the touch module 100 provided in this application embodiment protects the electrode structure and other structures of the touch electrode unit 20 and the electromagnetic coil unit 30 from accidental physical scratches or electrochemical corrosion by setting a protective layer 50. The material of the protective layer 50 includes silicon nitride (SiNx), silicon oxide (SiOx) and organic materials, etc. The material of the protective layer 50 may also include different combinations of the above materials, which is not limited in this application embodiment.

[0173] Please continue reading. Figure 2 , Figure 3 and Figure 8 Secondly, this application also provides a touch module 100, including a substrate 10, a touch electrode unit 20, and an electromagnetic coil unit 30.

[0174] The touch electrode unit 20 includes a touch electrode, and the electromagnetic coil unit 30 includes a first electromagnetic electrode 31 and a second electromagnetic electrode 32. The touch point unit and the electromagnetic coil unit 30 are disposed on one side of the substrate 10. The first electromagnetic electrode 31 and the second electromagnetic electrode 32 are disposed on different layers from the touch electrode, or the touch electrode is disposed on the same layer as at least one of the first electromagnetic electrode 31 and the second electromagnetic electrode 32. In this configuration, at least one of the touch electrode unit 20 and the electromagnetic coil unit 30 is arranged in an array to form a grid frame, and the other is at least partially filled in the gap formed by the grid frame. Alternatively, the touch electrode unit 20 and the electromagnetic coil unit 30 are arranged in an array, and the touch electrode unit 20 and the electromagnetic coil unit 30 are staggered in their orthogonal projections onto the substrate.

[0175] The touch module 100 provided in this application embodiment improves the integration of the touch module 100 by setting at least two electrode structures on the same layer and by arranging the touch electrode unit 20 and the electromagnetic coil unit 30 in an array and staggering them, making the layout of the touch electrode unit 20 and the electromagnetic coil unit 30 in the planar direction compact, thereby reducing the load between the touch electrode unit 20 and the electromagnetic coil unit 30 and improving the performance of the touch module 100.

[0176] At least one of the touch electrode unit 20 and the electromagnetic coil unit 30 is arranged in an array. The array arrangement should be understood as the touch electrode unit 20 or the electromagnetic coil unit 30 being arranged in a certain pattern on a plane formed by the intersection of two directions, and the touch electrode unit 20 or the electromagnetic coil unit 30 being arranged with the same spacing between adjacent units along one of the directions.

[0177] For example, one of the touch electrode units 20 or the electromagnetic coil units 30 is arranged in an array to form a grid frame first, while the other is subsequently filled into the gaps between the grids. The arrangement of the touch electrode units 20 or the electromagnetic coil units 30 that are subsequently filled into the gaps formed by the grid frame is not limited.

[0178] For example, both the touch electrode units 20 and the electromagnetic coil units 30 are arranged in an array, and the spacing between two adjacent units of the touch electrode units 20 in the same direction is approximately the same as the size of a single unit of the electromagnetic coil unit 30, and the spacing between two adjacent units of the electromagnetic coil unit 30 in the same direction is approximately the same as the size of a single unit of the touch electrode unit 20. Therefore, the touch electrode units 20 and the electromagnetic coil units 30 are staggered in their orthogonal projections onto the substrate, further making the layout of the touch module 100 in the planar direction more compact.

[0179] In some optional embodiments, the touch electrode includes a first touch electrode 22 and a second touch electrode 23, the first touch electrode 22 and the second touch electrode 23 are staggered and the first touch electrode 22 is arranged along a first direction X, and the second touch electrode 23 is arranged along a second direction Y, the first direction X and the second direction Y intersect.

[0180] In these optional embodiments, the touch module 100 provided in this application arranges the first touch electrode 22 and the second touch electrode 23 of the touch electrode unit 20 in an array and sets them in a staggered manner, which can further improve the integration of the touch module 100.

[0181] The first touch electrode 22 is arranged along the first direction X, while the second touch electrode 23 is staggered between the two arrays of the first touch electrode 22 arranged along the first direction X, and arranged in multiple arrays of the second touch electrode 23 along the second direction Y. The arrangement of the first touch electrode 22 and the second touch electrode 23 is more compact, which can further improve the integration of the touch module 100.

[0182] It is understood that the arrangement of the first touch electrode 22 along the first direction X and the second touch electrode 23 along the second direction Y is only for the sake of illustration. In this embodiment, the first touch electrode 22 may also be arranged along the second direction Y and the second touch electrode 23 along the first direction X. This embodiment does not limit this.

[0183] In some optional embodiments, the first touch electrode 22 and the second touch electrode 23 include a plurality of first functional sub-blocks 211, and the first electromagnetic electrode 31 and the second electromagnetic electrode 32 include a plurality of second functional sub-blocks 301. The first functional sub-blocks 211 and the second functional sub-blocks 301 are spaced apart in the orthographic projection of the substrate 10. At the same time, the first functional sub-blocks 211 are arranged along the first direction X and the second direction Y, and the second functional sub-blocks 301 are arranged along the first direction X and the second direction Y.

[0184] In these alternative embodiments, the touch electrode unit and the electromagnetic coil unit are arrayed along the first direction X and the second direction Y through the first functional sub-block and the second functional sub-block and are spaced apart in the orthogonal projection of the substrate.

[0185] Figure 9 It shows Figure 8 The magnified structure of region E in the middle.

[0186] Please see Figure 8 and Figure 9 In some optional embodiments, the first electromagnetic electrode 31 and the second electromagnetic electrode 32 further include a plurality of guiding parts 305, which are electrically connected to the second functional sub-block 301.

[0187] In these optional embodiments, the touch module 100 provided in this application embodiment ensures the reliability of electrical connection between two adjacent second functional sub-blocks 301 by setting multiple guide parts 305.

[0188] Please continue reading. Figure 8 and Figure 9In some optional embodiments, the second functional sub-block 301 includes a first boundary 3013 and a third boundary 3015 disposed opposite to each other in the first direction X. The first boundary 3013 of one second functional sub-block 301 is electrically connected to the third boundary 3015 of another adjacent second functional sub-block 301 arranged along the first direction X via a guide 305.

[0189] In these optional embodiments, the touch module 100 provided in this application connects the first boundary 3013 of a second functional sub-block 301 to the third boundary 3015 of another adjacent second functional sub-block 301 arranged along the first direction X through the guide part 305, making full use of the existing structure and further improving the integration of the touch module 100.

[0190] Please continue reading. Figure 8 and Figure 9 In some optional embodiments, the first electromagnetic electrode 31 and the second electromagnetic electrode 32 further include a plurality of extensions 303, which are electrically connected to the second functional sub-block 301.

[0191] In these optional embodiments, the touch module 100 provided in this application provides an extension 303 to electrically connect a portion of the second functional sub-block 301. The extension 303 does not overlap with the structure other than the second functional sub-block 301 of the first electromagnetic electrode 31 and the second electromagnetic electrode 32 in the orthogonal projection on the substrate 10. The extension 303 only overlaps with the orthogonal projection of the second functional sub-block 301 disposed in different layers on the substrate 10. While reducing the resistance of the first electromagnetic electrode 31 and the second electromagnetic electrode 32 to reduce the load, it does not increase the load between the touch electrode 21, thereby improving the performance of the touch module 100.

[0192] Please continue reading. Figure 8 and Figure 9 In some optional embodiments, the second functional sub-block 301 further includes a second boundary 3014 and a fourth boundary 3016 disposed opposite each other in the second direction Y, and the second boundary 3014 of one second functional sub-block 301 is electrically connected to the fourth boundary 3016 of another adjacent second functional sub-block 301 arranged along the second direction Y through an extension 303.

[0193] In these alternative embodiments, the second boundary 3014 of a second functional sub-block 301 is connected to the third boundary 3015 of an adjacent second functional sub-block 301 arranged along the second direction Y by the extension 303, making full use of the existing structure and further improving the integration of the touch module 100.

[0194] Optionally, the connection structure connecting the first functional sub-blocks 211 of the first touch electrode 22 is distributed along the first direction X, and the bridge structure connecting the first functional sub-blocks 211 of the second touch electrode 23 is distributed along the second direction Y, which further improves the integration of the touch module 100.

[0195] Optionally, the connection structure connecting the first functional sub-blocks 211 of the second touch electrode 23 is distributed along the first direction X, and the bridge structure connecting the first functional sub-blocks 211 of the first touch electrode 22 is distributed along the second direction Y, which further improves the integration of the touch module 100.

[0196] Optionally, the connection structure connecting the first functional sub-blocks 211 of the first touch electrode 22 is distributed along the second direction Y, and the bridge structure connecting the first functional sub-blocks 211 of the second touch electrode 23 is distributed along the first direction X, which further improves the integration of the touch module 100.

[0197] Optionally, the connection structure connecting the first functional sub-blocks 211 of the second touch electrode 23 is distributed along the second direction Y, and the bridge structure connecting the first functional sub-blocks 211 of the first touch electrode 22 is distributed along the first direction X, which further improves the integration of the touch module 100.

[0198] Figure 16 The overall structure of a display device 1000 provided in a third aspect embodiment of this application is shown.

[0199] Please see Figure 16 Thirdly, embodiments of this application also provide a display device 1000, including the touch module 100 of the above embodiments. Since the display device 1000 provided in this application includes the touch module 100 of the above embodiments, the touch module 100 provided in the third aspect of this application has the beneficial effects of the touch modules 100 of the first and second aspect embodiments, which will not be repeated here.

[0200] In some optional embodiments, the display device 1000 further includes an electromagnetic stylus 1001. The electromagnetic stylus 1001 is coupled with a first electromagnetic electrode 31 and a second electromagnetic electrode 32 to detect the touch position. Electromagnetic induction technology can determine the touch position by detecting the position and pressure of the electromagnetic stylus 1001 on the touch module 100 and sensing the change in electromagnetic flux around the pen tip, thus achieving a very delicate touch experience.

[0201] Optionally, the display device 1000 may also include a chip, such as a touch chip. The first touch electrode 22, the second touch electrode 23, the first electromagnetic electrode 31, and the second electromagnetic electrode 32 may be electrically connected to the chip.

[0202] The display device 1000 in this application embodiment includes, but is not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0203] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A touch module, characterized in that, include: The system comprises a substrate, a touch electrode unit, and an electromagnetic coil unit. The touch electrode unit includes a touch electrode, and the electromagnetic coil unit includes a first electromagnetic electrode and a second electromagnetic electrode. The touch electrode unit and the electromagnetic coil unit are disposed on one side of the substrate. The first electromagnetic electrode, the second electromagnetic electrode, and the touch electrode are disposed on different layers, or the touch electrode is disposed on the same layer as at least one of the first electromagnetic electrode and the second electromagnetic electrode. The orthographic projection of the touch electrode unit on the substrate is offset from the orthographic projection of the electromagnetic coil unit on the substrate.

2. The touch module according to claim 1, characterized in that, The touch electrode includes a first touch electrode and a second touch electrode, wherein at least two of the first touch electrode, the second touch electrode, the first electromagnetic electrode, and the second electromagnetic electrode are disposed in the same layer; Preferably, the first electromagnetic electrode and the second electromagnetic electrode are disposed in the same layer; Preferably, the first touch electrode and the second touch electrode are disposed in the same layer; Preferably, one of the first touch electrode and the second touch electrode is disposed in the same layer as one of the first electromagnetic electrode and the second electromagnetic electrode.

3. The touch module according to claim 2, characterized in that, The first touch electrode and the second touch electrode each include a plurality of first functional sub-blocks, and the first electromagnetic electrode and the second electromagnetic electrode each include a plurality of second functional sub-blocks. The first functional sub-blocks and the second functional sub-blocks are spaced apart in their orthographic projections onto the substrate.

4. The touch module according to claim 3, characterized in that, The first touch electrode, the second touch electrode, the first electromagnetic electrode, and the second electromagnetic electrode are in a grid wiring structure. The first touch electrode and the second touch electrode also include a plurality of first conductive parts. The first conductive parts are electrically connected to the first functional sub-block. The grid wiring density of the first functional sub-block is greater than the grid wiring density of the first conductive parts. The orthographic projection of the first conductive parts on the substrate and the orthographic projection of the second functional sub-block on the substrate at least partially overlap. Preferably, two adjacent first functional sub-blocks are electrically connected through a plurality of first conductive parts; Preferably, the first conductive portion includes a first connection end and a second connection end disposed opposite to each other, and a plurality of first connection ends of a plurality of first conductive portions are disposed on a first edge of a first functional sub-block, and a plurality of second connection ends of a plurality of first conductive portions are disposed on a second edge of an adjacent first functional sub-block disposed opposite to each other; Preferably, the first electromagnetic electrode and the second electromagnetic electrode further include a plurality of second conductive portions, the second conductive portions electrically connecting to portions of the second functional sub-block, the grid wiring density of the second functional sub-block being greater than the grid wiring density of the second conductive portions, and the orthographic projection of the second conductive portions on the substrate at least partially overlapping the orthographic projection of the first functional sub-block on the substrate; Preferably, two adjacent second functional sub-blocks are electrically connected through a plurality of second conductive parts; Preferably, the second conductive portion includes a third connection end and a fourth connection end, and a plurality of the third connection ends of a plurality of the second conductive portions are disposed on the third edge of a second functional sub-block, and a plurality of the fourth connection ends of a plurality of the second conductive portions are disposed on the fourth edges of adjacent second functional sub-blocks disposed opposite each other.

5. The touch module according to claim 3, characterized in that, The first touch electrode, the second touch electrode, the first electromagnetic electrode, and the second electromagnetic electrode are in a grid wiring structure. The first electromagnetic electrode and the second electromagnetic electrode also include multiple extensions. The extensions are electrically connected to the second functional sub-block. The grid wiring density of the extensions is the same as that of the second functional sub-block. The orthographic projection of the extensions on the substrate at least partially overlaps with the orthographic projection of the second functional sub-block on the substrate. Preferably, the extension is disposed on the same layer as the first electromagnetic electrode or the second electromagnetic electrode, and two adjacent second functional sub-blocks are electrically connected through the extension, wherein the second functional sub-blocks and the extension constitute an electrode block; Preferably, the extension is disposed on the same layer as the first electromagnetic electrode, and the orthographic projection of the extension on the substrate at least partially overlaps with the orthographic projection of the second functional sub-block of the second electromagnetic electrode on the substrate.

6. The touch module according to claim 5, characterized in that, The second functional sub-block of the first electromagnetic electrode and the extension include a plurality of first branches, and the second functional sub-block of the second electromagnetic electrode includes a plurality of second branches. The orthographic projections of the first branches on the substrate and the orthographic projections of the second branches on the substrate at least partially overlap. Preferably, the first branch and the second branch are arranged orthogonally.

7. The touch module according to claim 3, characterized in that, The first touch electrode and the second touch electrode further include multiple bridge portions, which are electrically connected between two first functional sub-blocks of the second touch electrode. The two first functional sub-blocks of the second touch electrode are disposed on both sides of the first functional sub-blocks of the first touch electrode. Alternatively, the bridge portion is electrically connected between the two first functional sub-blocks of the second touch electrode, and the two first functional sub-blocks of the first touch electrode are disposed on both sides of the first functional sub-block of the second touch electrode; Preferably, the bridge portion is disposed on a different layer from the first touch electrode or the second touch electrode, and the two first functional sub-blocks of the second touch electrode are disposed on the same layer as one first functional sub-block of the first touch electrode. Alternatively, the two first functional sub-blocks of the first touch electrode and one first functional sub-block of the second touch electrode are disposed on the same layer; Preferably, the bridge portion is disposed in the same layer as the first electromagnetic electrode; Preferably, the bridge portion is disposed in the same layer as the second electromagnetic electrode.

8. The touch module according to claim 7, characterized in that, The first functional sub-block includes a plurality of third branches, and the bridge portion includes a plurality of fourth branches. The orthographic projection of the fourth branches on the substrate at least partially overlaps with the orthographic projection of the third branches on the substrate. Preferably, the third branch and the fourth branch are arranged orthogonally; Preferably, the third branch includes a first main stem and a first connecting portion, and the fourth branch includes a second main stem and a second connecting portion. Adjacent first main stems are connected through the first connecting portion, and adjacent second main stems are connected through the second connecting portion. The width of the first main stem and the second main stem is greater than the width of the first connecting portion and the second connecting portion. The orthographic projections of the first main stem and the second main stem on the substrate are spaced apart, and the orthographic projections of the first connecting portion and the second connecting portion on the substrate at least partially overlap.

9. The touch module according to claim 1, characterized in that, The touch module further includes an insulating layer, which is disposed between the touch electrode unit and the electromagnetic coil unit, and the touch electrode unit and the electromagnetic coil unit are electrically insulated from each other through the insulating layer; Preferably, the touch module further includes a protective layer, which is disposed on the side of the touch electrode unit or the electromagnetic coil unit away from the substrate, and the orthographic projection of the protective layer on the substrate at least partially overlaps with the orthographic projection of the touch electrode unit on the substrate or the orthographic projection of the electromagnetic coil unit on the substrate.

10. A touch module, characterized in that, include: The substrate, the touch electrode unit, and the electromagnetic coil unit are provided. The touch electrode unit includes a touch electrode, and the electromagnetic coil unit includes a first electromagnetic electrode and a second electromagnetic electrode. The touch electrode unit and the electromagnetic coil unit are disposed on one side of the substrate. The first electromagnetic electrode, the second electromagnetic electrode, and the touch electrode are disposed in different layers, or the touch electrode is disposed in the same layer as at least one of the first electromagnetic electrode and the second electromagnetic electrode. The touch electrode unit and the electromagnetic coil unit are arranged in an array to form a grid frame, and the other unit is at least partially filled in the gap formed by the grid frame. Alternatively, the touch electrode unit and the electromagnetic coil unit are arranged in an array, and the touch electrode unit and the electromagnetic coil unit are staggered in their orthogonal projections on the substrate.

11. The touch module according to claim 10, characterized in that, The touch electrode includes a first touch electrode and a second touch electrode. The first touch electrode and the second touch electrode are staggered and the first touch electrode is arranged along a first direction, while the second touch electrode is arranged along a second direction. The first direction and the second direction intersect. Preferably, the first touch electrode and the second touch electrode include a plurality of first functional sub-blocks, the first electromagnetic electrode and the second electromagnetic electrode include a plurality of second functional sub-blocks, the first functional sub-blocks and the second functional sub-blocks are spaced apart on the orthographic projection of the substrate, and the first functional sub-blocks are arranged along the first direction and the second direction, and the second functional blocks are arranged along the first direction and the second direction. Preferably, the first electromagnetic electrode and the second electromagnetic electrode further include a plurality of guiding parts, the guiding parts being electrically connected to the second functional sub-block; Preferably, the second functional sub-block includes a first boundary and a third boundary disposed opposite to each other in the first direction, and the first boundary of one second functional sub-block is electrically connected to the third boundary of another adjacent second functional sub-block arranged along the first direction through the guide portion. Preferably, the first electromagnetic electrode and the second electromagnetic electrode further include a plurality of extensions, the extensions being electrically connected to portions of the second functional sub-block; Preferably, the second functional sub-block further includes a second boundary and a fourth boundary disposed opposite to each other in the second direction, and the second boundary of one second functional sub-block is electrically connected to the fourth boundary of another adjacent second functional sub-block arranged along the second direction through the extension.

12. A display device, characterized in that, Includes the touch module as described in any one of claims 1 to 11.

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