Touch module, touch display panel and display device

Abstract

The present application provides a touch module, a touch display panel and a display device, in which each touch electrode includes a plurality of electrode blocks arranged along an extension direction, and electrode blocks belonging to other touch electrodes are distributed within the area to which at least some of the electrode blocks belong, thereby making full use of the internal area of ​​the conventional touch pattern, increasing the coupling area with the touch electrode, and significantly increasing the change in mutual capacitance value between the touch electrode and the touch electrode when a touch occurs, thereby enhancing touch sensitivity.

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to a Chinese patent application filed with the China Patent Office on January 21, 2020, bearing application number 202010072055.9 and entitled "Touch Module, Touch Display Panel and Display Device," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of display technology, and in particular to a touch module, a touch display panel and a display device. [Background technology]

[0003] Electronic devices have permeated every aspect of people's lives, and touch screens have become the main information exchange device of current electronic devices due to their characteristics of simple and direct operation. As society continues to progress, users of electronic devices will continue to have higher requirements for various aspects of touch screens.

[0004] The touch is realized by scanning the charge and discharge of the channel capacitance of the touch sensor, sensing the change in the channel capacitance of the sensor corresponding to the area touched by the finger, and reporting the position of the touch, thereby improving the sensing sensitivity to the touch and playing an important role in improving the touch performance. Summary of the Invention

[0005] An embodiment of the present application includes a base substrate and a plurality of touch electrodes disposed on the base substrate, each of the touch electrodes including a plurality of electrode blocks arranged along an extension direction, at least one of the electrode blocks one Within the region to which the electrode block belongs, electrode blocks belonging to other touch electrodes are distributed, the other touch electrode is a touch electrode other than the touch electrode including the at least one electrode block; A touch module is provided.

[0006] The present applicationIn an embodiment, the plurality of touch electrodes include a plurality of first touch electrodes extending along a first direction and a plurality of second touch electrodes extending along a second direction; Each of the first touch electrodes includes a plurality of first electrode blocks and a plurality of second electrode blocks, and each of the second touch electrodes includes a plurality of third electrode blocks and a plurality of fourth electrode blocks; In the same first touch electrode, a plurality of the first electrode blocks are sequentially arranged along the first direction, the second electrode block is located within a region to which the third electrode block adjacent to the first electrode block belongs, the second electrode block and the third electrode block are insulated from each other, and the second electrode block and the adjacent first electrode block are connected in series with each other, Within the same second touch electrode, a plurality of the third electrode blocks are sequentially arranged along the second direction, the fourth electrode block is located within a region of the first electrode block adjacent to the third electrode block, the fourth electrode block and the first electrode block are insulated from each other, and the fourth electrode block and the adjacent third electrode block are connected in series with each other.

[0007] The present application In an embodiment, a plurality of the first electrode blocks are arranged in series in the same first touch electrode along the first direction, Within the same second touch electrode, a plurality of the third electrode blocks are arranged sequentially along the second direction and are connected in series with each other.

[0008] The present application In an embodiment, the first touch electrode and the second touch electrode are located in the same film layer, the third electrode block has a first hollow region in a region corresponding to the second electrode block, and a forward projection of the first hollow region onto the base substrate covers a forward projection of the second electrode block onto the base substrate; The first electrode block has a second hollow region in a region corresponding to the fourth electrode block, and an orthographic projection of the second hollow region onto the base substrate covers an orthographic projection of the fourth electrode block onto the base substrate.

[0009] The present application In an embodiment, the touch module further includes a first bridge portion, and the second electrode block and the adjacent first electrode block are connected in series with each other by the first bridge portion. The touch module further includes a second bridge portion, and the fourth electrode block and the adjacent third electrode block are connected in series with each other by the second bridge portion.

[0010] The present application In an embodiment, an orthographic projection of the first bridge portion onto the base substrate and an orthographic projection of the second bridge portion onto the base substrate do not overlap each other.

[0011] The present application In an embodiment, an orthographic projection of the first bridge portion onto the base substrate and an orthographic projection of the second bridge portion onto the base substrate do not overlap each other.

[0012] All of the electrode blocks are located in the electrode layer, the first bridge portion and the second bridge portion are located in the bridge layer, and an insulating layer is provided between the bridge layer and the electrode layer.

[0013] The present application In an embodiment, an orthographic projection of the first bridge portion onto the base substrate and an orthographic projection of the second bridge portion onto the base substrate do not overlap each other.

[0014] The bridge layer is located between the electrode layer and the base substrate.

[0015] The present applicationIn an embodiment, the first hollow region has a first floating electrode located around the periphery of the second electrode block, and the forward projection of the first floating electrode onto the base substrate is a closed hollow pattern surrounding the second electrode block.

[0016] The present application In an embodiment, the second hollow region has a second floating electrode located around the periphery of the fourth electrode block, and a forward projection of the second floating electrode onto the base substrate is a closed hollow pattern surrounding the fourth electrode block.

[0017] The present application In an embodiment, the first touch electrode and the second touch electrode are located on different film layers.

[0018] The present application In an embodiment, in each of the third electrode blocks, there are two of the second electrode blocks belonging to different first touch electrodes, and the two second electrode blocks in the same third electrode block are insulated from each other.

[0019] The present application In an embodiment, in each of the first electrode blocks, there are two of the fourth electrode blocks belonging to different second touch electrodes, and the two fourth electrode blocks in the same first electrode block are insulated from each other.

[0020] The present application In an embodiment, the opposing external boundaries of the second electrode block and the third electrode block have an uneven sawtooth shape, and / or the opposing external boundaries of the fourth electrode block and the first electrode block have an uneven sawtooth shape.

[0021] The present application In an embodiment, the third electrode block has a rhombus shape, the second electrode block has a triangular shape, and two sides of the second electrode block are arranged parallel to and correspond to two sides of the third electrode block.

[0022] The present application In an embodiment, the first electrode block has a rhombus shape, the fourth electrode block has a triangular shape, and two sides of the fourth electrode block are arranged parallel to and correspond to two sides of the first electrode block.

[0023] The embodiment of the present application further provides a touch display panel, including the above touch module provided by the embodiment of the present application.

[0024] The present application In an embodiment, the display device further includes a light emitting element located on the base substrate, and a packaging structure for packaging the light emitting element, the touch electrode being located on a side of the packaging structure away from the light emitting element.

[0025] The present application In an embodiment, the package structure includes a first inorganic layer, an organic layer, and a second inorganic layer, which are stacked in sequence; The touch display panel further includes a buffer layer located between the second inorganic layer and the touch electrode.

[0026] The embodiment of the present application further provides a display device including the touch display panel provided by the embodiment of the present application. [Brief description of the drawings]

[0027] [Figure 1] FIG. 1 is a structural schematic diagram of a touch module provided by an embodiment of the present application. [Diagram 2] FIG. 2 is a structural schematic diagram of a first touch electrode in a touch module provided by an embodiment of the present application. [Diagram 3] FIG. 3 is a structural schematic diagram of a second touch electrode in a touch module provided by an embodiment of the present application. [Figure 4] FIG. 4 is an enlarged view of the dotted circle in FIG. [Figure 5A] FIG. 5A is a schematic diagram of a conventional touch module. [Figure 5B] Figure 5B is a schematic diagram of the original electric field state of the touch module shown in Figure 5A. [Figure 5C] Figure 5C is a touch schematic diagram when the touch module shown in Figure 5A is touched at the intersection point. [Figure 5D] Figure 5D is a schematic diagram of the electric field state of the touch module when touched at the intersection point shown in Figure 5C. [Figure 6A] Figure 6A is a touch schematic diagram when the touch module shown in Figure 5A is touched at a non-intersection point. [Figure 6B] Figure 6B is a schematic diagram of the electric field state of the touch module when touched at the non-intersection point shown in Figure 6A. [Figure 7A] Figure 7A is a touch schematic diagram when the touch module provided by the embodiment of the present application is touched at a non-intersection point. [Figure 7B] Figure 7B is an enlarged view of Figure 7A. [Figure 7C] Figure 7C is a schematic diagram of the electric field state of the touch module when touched at the non-intersection point of Figure 7A and Figure 7B. [Figure 8] Figure 8 is a schematic structural diagram of the touch module provided by the embodiment of the present application, in which a first hollow region and a second hollow region are provided. [Figure 9] Figure 9 is a schematic structural diagram of the touch module provided by the embodiment of the present application, in which a first floating electrode and a second floating electrode are provided. [Figure 10] Figure 10 is an enlarged view at the position of the dotted line frame in Figure 9. [Figure 11A] Figure 11A is a plan view of the touch display panel provided by the embodiment of the present application. [Figure 11B] Figure 11B is a cross-sectional view taken along line A-A' in Figure 11A. [Figure 11C] Figure 11C is a cross-sectional view taken along line B-B' in Figure 11A.

Embodiments for Carrying out the Invention

[0028] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described below clearly and completely with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Based on the described embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor all belong to the scope of protection of the present application.

[0029] Unless otherwise defined, technical or scientific terms used in this application have ordinary meanings that can be understood by those skilled in the art. The terms "first", "second" and similar terms used in this application do not denote any order, number or importance, but are merely used to distinguish different compositional parts. Similar terms such as "have" or "include" mean that the element or thing appearing before the term includes the element or thing listed after the term and its equivalents, and do not exclude other elements or things. Similar terms such as "connect" or "couple" are not limited to physical or mechanical connections, but include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left", "right" and the like are merely terms for describing relative positional relationships, and the relative positional relationships may change accordingly after the absolute position of the objects being described is changed.

[0030] For clarity and conciseness of the following description of the embodiments of the present application, detailed descriptions of known functions and components are omitted in this application.

[0031] The touch module provided by the embodiment of the present application includes: A base substrate; A plurality of touch electrodes located on a base substrate, each of the touch electrodes including a plurality of electrode blocks arranged along an extension direction, and electrode blocks belonging to other touch electrodes being distributed within an area to which at least a part of the electrode blocks belong; Includes.

[0032] Specifically, as shown in FIG. 1, in the above touch module provided by an embodiment of the present application, the multiple touch electrodes may include a multiple first touch electrodes 1 extending along a first direction AB and a multiple second touch electrodes 2 extending along a second direction CD.

[0033] As shown in Figures 2 and 3, Figure 2 is a schematic diagram of one first touch electrode 1, and Figure 3 is a schematic diagram of one second touch electrode 2, where each first touch electrode 1 includes a plurality of first electrode blocks 11 and a plurality of second electrode blocks 12, and each second touch electrode 2 includes a plurality of third electrode blocks 21 and a plurality of fourth electrode blocks 22.

[0034] As shown in Figures 2 and 4, Figure 4 is an enlarged view of the dotted circle in Figure 1, and within the same first touch electrode 1, multiple first electrode 11 blocks are arranged sequentially along the first direction AB, the second electrode block 12 is located within the area to which the third electrode block 21 adjacent to the first electrode block 11 belongs, the second electrode block 12 and the third electrode block 21 are insulated from each other, and the second electrode block 12 and the adjacent first electrode block 11 are connected in series with each other.

[0035] As shown in Figures 3 and 4, within the same second touch electrode 2, a plurality of third electrode blocks 21 are sequentially arranged along the second direction CD, a fourth electrode block 22 is located within the area to which the first electrode block 11 adjacent to the third electrode block 21 belongs, the fourth electrode block 22 and the first electrode block 11 are insulated from each other, and the fourth electrode block 22 and the adjacent third electrode block 21 are connected in series with each other.

[0036] Alternatively, as shown in Figures 2 and 4, in the above touch module provided by the embodiment of the present application, a plurality of first electrode blocks 11 arranged sequentially along the first direction AB in the same first touch electrode 1 may be connected in series with each other, and as shown in Figures 3 and 4, a plurality of third electrode blocks 21 arranged sequentially along the second direction CD in the same second touch electrode 2 may be connected in series with each other.

[0037] In the touch module provided by the embodiments of the present application, the second electrode block 12 of the first touch electrode 1 is provided in the third electrode block 21 of the second touch electrode 2, and the fourth electrode block 22 of the second touch electrode 2 is provided in the first electrode block 11 of the first touch electrode 1, making full use of the internal areas of the third electrode block 21 and the first electrode block 11, increasing the coupling area between the first touch electrode 1 and the second touch electrode 2, and obviously increasing the change in the mutual capacitance value of the corresponding first touch electrode 1 and second touch electrode 2 when touched with a finger, thereby improving the touch sensitivity and improving the problem of low touch sensitivity in the related art.

[0038] In a specific implementation, as shown in FIG. 2, for one first touch electrode 1, a second electrode block 12 may be provided in each of the two third electrode blocks 21 adjacent to each first electrode block 11; that is, if the first direction AB is vertical, the multiple first electrode blocks 11 of one first touch electrode 1 are arranged in one row, and the multiple second electrode blocks 12 of the first touch electrode 1 are distributed in two rows, each located on both sides of the first electrode block 1 in one row. Similarly, for one second touch electrode 2, a fourth electrode block 22 may be provided in both of the two first electrode blocks 11 adjacent to each of the third electrode blocks 21; that is, if the second direction CD is horizontal, the multiple third electrode blocks 21 of one second touch electrode 2 are arranged in one row, and the multiple fourth electrode blocks 22 of the second touch electrode 2 are distributed in two rows, each located on both sides of the third electrode blocks 21 in one row.

[0039] In order to more clearly understand the principle of improving the touch sensitivity of the touch module provided by the embodiment of the present application, reference is now made to FIG. A ~Figure 7 B 1, an example in which the first touch electrode 1 is the drive electrode Tx and the second touch electrode 2 is the induction electrode Rx will be specifically described.

[0040] Figure 5 A to Figure 5D In the conventional touch module, when the touch position F is located at the intersection of the first touch electrode and the second touch electrode, before touch (FIG. 5 A and Figure 5B ) and schematic diagram after touch (Fig. 5 C and Fig. 5D ) and Fig. 6 A and Figure 6B FIG. 7 is a schematic diagram of a touch when the touch position F is located at a non-intersecting position in a conventional touch module. A and Figure 7B 2 is a touch schematic diagram when a touch position F is located at a non-intersecting position in a touch module provided by an embodiment of the present application. FIG.

[0041] The touch sensitivity of the touch module has a positive correlation with the change in mutual capacitance value ΔCm=Cm-Cm' between the first touch electrode 1 (drive electrode Tx) / second touch electrode 2 (induction electrode Rx), and the larger ΔCm is, the higher the touch sensitivity is. As shown in Figure 5, the adjacent coupling region S of the first touch electrode 1 and the second touch electrode 2 forms a mutual capacitance (coupling capacitance) Cm, and when the touch surface 3 of the touch module is touched, the touch by the finger changes the original electric field state, and the coupling capacitance Cm is reduced (the reduction amount is ΔCm), and this phenomenon is electric charge stealing charge.

[0042] In the conventional design, the coupling area S between the first touch electrode 1 and the second touch electrode 2 exists only where the edges of the patterns of the first touch electrode 1 and the second touch electrode 2 are adjacent, and there is no coupling area inside each pattern. When a finger touches the inside of the conventional touch electrode (sensor) pattern, the finger is far away from the coupling area S, and the finger touches the inside of the conventional touch electrode (sensor) pattern, as shown in FIG. A and Figure 6BAs shown in Fig. 1, the electric charge stealing phenomenon is weak, so △Cm is small and the sensitivity is weak.

[0043] In the embodiment of the present application, FIG. A~Figure 7C As shown in Figure 7 B teeth Figure 7A 1 is an enlarged structural schematic diagram of the touch module, in which a second electrode block 12 pattern is added inside the third electrode block 21 of the touch module, and a fourth electrode block 22 pattern is added inside the first electrode block 11, making full use of the internal area of ​​the conventional touch pattern, and increasing the coupling area S between the first touch electrode 1 and the second touch electrode 2. When touching with a finger, more coupling area S can be touched, and the charge stealing charge phenomenon becomes prominent, which obviously increases the change amount ΔCm of the mutual capacitance value between the corresponding first touch electrode 1 and the second touch electrode 2, thereby increasing the touch sensitivity.

[0044] In concrete implementation, as shown in Figures 2, 3, 8 and 9, the first touch electrode 1 and the second touch electrode 2 may be located in the same film layer or in different film layers. When the first touch electrode 1 and the second touch electrode 2 are located in the same film layer, the third electrode block 21 has a first hollow area 15 in an area corresponding to the second electrode block 12, and the forward projection of the first hollow area 15 onto the base substrate covers the forward projection of the second electrode block 12 onto the base substrate. The first electrode block 11 has a second hollow area 25 in an area corresponding to the fourth electrode block 22, and the forward projection of the second hollow area 25 onto the base substrate covers the forward projection of the fourth electrode block 22 onto the base substrate.

[0045] In an embodiment of the present application, the first touch electrode 1 and the second touch electrode 2 are located in the same film layer, and when forming the first electrode block 11 and the second electrode block 12 of the first touch electrode 1 through a one-time construction process, the third electrode block 21 and the fourth electrode block 22 of the second touch electrode 2 can be formed simultaneously, thereby simplifying the fabrication process of the touch module.

[0046] In a specific implementation, as shown in FIG. 8, when the first touch electrode 1 and the second touch electrode 2 are located on the same film layer, the touch module may further include a first bridge portion 13, and the second electrode block 12 is connected in series with the adjacent first electrode block 11 by the first bridge portion 13. Similarly, the touch module may further include a second bridge portion 23. Yo Moreover, the fourth electrode block 22 is connected in series to the adjacent third electrode block 21 by the second bridge portion 23 .

[0047] In the embodiment of the present application, the first bridge portion 13 and the second bridge portion 23 allow more parallel bridge designs to exist between each first touch electrode 1 and each second touch electrode 2, which is advantageous to reduce channel impedance and improve touch driving performance.

[0048] 4, the forward projection of the first bridge portion 13 onto the base substrate 1 and the forward projection of the second bridge portion 23 onto the base substrate 1 do not overlap, thereby preventing conduction between the first touch electrode 1 and the second touch electrode 2. Specifically, the forward projection of the first bridge portion 13 onto the base substrate 1 and the forward projection of the second bridge portion 23 onto the base substrate 1 may be in a mutually parallel relationship.

[0049] In a specific implementation, as shown in Fig. 9, the first hollow region 15 may have a first floating electrode 14 located around the second electrode block 12, and specifically, the forward projection of the first floating electrode 14 onto the base substrate 1 is a closed hollow pattern surrounding the second electrode block 12. The second hollow region 25 may have a second floating electrode 24 located around the fourth electrode block 22, and the forward projection of the second floating electrode 24 onto the base substrate 1 is a closed hollow pattern surrounding the fourth electrode block 22. In the embodiment of the present application, by providing the first floating electrode 14 and the second floating electrode 24, the capacitive loading can be reduced.

[0050] In a specific implementation, the first floating electrode 14 in each first hollow region 15 may be a closed hollow pattern surrounding the second electrode block 12, and the second floating electrode 24 in each second hollow region 25 may be a closed hollow pattern surrounding the fourth electrode block 22. Specifically, a gap may be provided between the third electrode block 21 and the first floating electrode 14, and between the first floating electrode 14 and the second electrode block 12. Similarly, a gap may be provided between the first electrode block 11 and the second floating electrode 24, and between the second floating electrode 24 and the fourth electrode block 22.

[0051] In concrete implementation, the first touch electrode 1 and the second touch electrode 2 may be located on different film layers. When the first touch electrode 1 and the second touch electrode 2 are located on different film layers, the installation manner of the first touch electrode 1 and the second touch electrode 2 may be the same as when they are located on the same film layer, that is, a first hollow area may be provided in the third electrode block 22 of the second touch electrode 2 in a region corresponding to the second electrode block 12, and a second hollow area may be provided in the first electrode block 11 in a region corresponding to the fourth electrode block 22.

[0052] In a specific implementation, as shown in Figures 8 and 9, each third electrode block 21 may have two second electrode blocks 12 belonging to different first touch electrodes 1, and the two second electrode blocks 12 in the same third electrode block 21 are insulated from each other. Each first electrode block 11 may have two fourth electrode blocks 22 belonging to different second touch electrodes 2, and the two fourth electrode blocks 22 in the same first electrode block 11 are insulated from each other.

[0053] In the embodiment of the present application, two second electrode blocks 22 are provided in each third electrode block 21, and two fourth electrode blocks 22 are provided in each first electrode block 11, which can effectively improve the touch sensitivity of the touch module and reduce the difficulty of fabricating the touch module compared to the case where more second electrode blocks 12 and more fourth electrode blocks 22 are provided. Of course, if the difficulty of the process fabrication is not taken into consideration, more second electrode blocks may be provided in each third electrode block, and more fourth electrode blocks may be provided in each first electrode block.

[0054] In a specific implementation, as shown in Figures 8 and 9, the shape of the third electrode block 21 may be a rhombus, the shape of the second electrode block 12 may be a triangle, and two sides of the second electrode block 12 are installed in parallel to correspond to two sides of the third electrode block 21. The shape of the first electrode block 11 may be a rhombus, the shape of the fourth electrode block 22 may be a triangle, and two sides of the fourth electrode block 22 are installed in parallel to correspond to two sides of the first electrode block 11.

[0055] In the embodiment of the present application, the third electrode block 21 is rhombic, the second electrode block 12 is triangular, and two sides of the second electrode block are arranged parallel to two sides of the third electrode block. When the first electrode block 11 is rhombic, the fourth electrode block 22 is triangular, and two sides of the fourth electrode block 22 are arranged parallel to two sides of the first electrode block 11, a large coupling boundary can be formed between the first touch electrode 1 and the second touch electrode 2 to the maximum, and the signal strength can be improved.

[0056] In a specific implementation, as shown in FIG. 10, which is an enlarged schematic diagram of the dotted frame in FIG. 9, the opposing external boundary between the second electrode block 12 and the third electrode block 21 may have an uneven sawtooth shape, and / or the opposing external boundary between the fourth electrode block 22 and the first electrode block 11 may have an uneven sawtooth shape.

[0057] In the embodiment of the present application, the design of the outer boundary with a concave-convex sawtooth shape can increase the coupling boundary between the first touch electrode 1 and the second touch electrode 2, and improve the signal strength. Of course, in a specific implementation, the outer boundary between the first floating electrode 14 and the second floating electrode 24 can also be set in a concave-convex sawtooth shape.

[0058] Based on the same inventive concept, the embodiment of the present application further provides a touch display panel, including the above touch module provided by the embodiment of the present application. Since the principle of solving the problem of the touch display panel is similar to the above-mentioned touch module, the implementation of the touch display panel can refer to the implementation of the touch module, and the description is omitted here.

[0059] FIG 11A is a plan view of a touch display panel in some embodiments according to the present application. FIG 11B is a cross-sectional view taken along line A-A' in FIG 11A. FIG 11C is a cross-sectional view taken along line B-B' in FIG 11A. Alternatively, in some embodiments, the touch display panel may include a light-emitting element 02 located on a base substrate 01 and a package structure 03 for packaging the light-emitting element 02, and the touch electrode is located on the side of the package structure 03 away from the light-emitting element 02, i.e., the touch electrode is located on the package structure 03.

[0060] Specifically, the light-emitting element 02 includes a display element 021 and a thin film transistor 022. For example, in an organic light-emitting diode display panel, the display element 021 includes a plurality of light-emitting diodes. Furthermore, for example, in a liquid crystal display panel, the display element 021 includes a liquid crystal layer in a plurality of sub-pixels. As shown in FIGS. 11B to 11C, in some embodiments, the touch display panel includes a base substrate 01, a plurality of thin film transistors 022 located on the base substrate 01, and a plurality of light-emitting elements 021 located on the base substrate 01 and connected to the plurality of thin film transistors 022, respectively.

[0061] Alternatively, in some embodiments, the package structure 03 may include a first inorganic layer, an organic layer, and a second inorganic layer arranged in a stacked manner, and the touch display panel may further include a buffer layer 04 located between the second inorganic layer and the touch electrode.

[0062] In some embodiments, the touch display panel may further include a packaging structure 03 for packaging a plurality of display elements 021, a buffer layer 04 located on a side of the packaging layer 03 away from the base substrate 01, and an insulating layer 05 located on a side of the buffer layer 04 away from the packaging layer 03. Alternatively, when the first touch electrode and the second touch electrode are located on the same film layer, all the electrode blocks may be specifically located on the electrode layer 06, and the bridge portions, such as the first bridge portion and the second bridge portion, may be located on the bridge layer 07, and the insulating layer 05 may be located between the bridge layer 07 and the electrode layer 06.

[0063] Based on the same invention concept, the embodiment of the present application further provides a display device, including the above touch display panel provided by the embodiment of the present application. The display device may be any product or part with a display function, such as a mobile phone, a tablet computer, a television, a display, a laptop computer, a digital photo frame, a navigation system, etc. For the implementation of the display device, reference may be made to the embodiment of the above touch display panel, which is omitted here.

[0064] The beneficial effects of the embodiments of the present application are as follows: According to the touch module, touch display panel and display device provided by the embodiments of the present application, in a same first touch electrode, a plurality of first electrode blocks are sequentially arranged along a first direction and connected in series with each other, a second electrode block is located in an area to which a third electrode block adjacent to the first electrode block belongs, and the second electrode block and the adjacent first electrode block are connected in series with each other, in a same second touch electrode, a plurality of third electrode blocks are sequentially arranged along a second direction and connected in series with each other, and a fourth electrode block is located in an area to which a first electrode block adjacent to the third electrode block belongs, The fourth electrode block and the adjacent third electrode block are connected in series with each other, that is, the second electrode block of the first touch electrode is provided in the third electrode block of the second touch electrode, and the fourth electrode block of the second touch electrode is provided in the first electrode block of the first touch electrode, making full use of the internal areas of the third electrode block and the first electrode block, increasing the coupling area of ​​the first touch electrode and the second touch electrode, and obviously increasing the change in the mutual capacitance value of the corresponding first touch electrode and second touch electrode when touched with a finger, thereby increasing the touch sensitivity and improving the problem of low touch sensitivity in the related art.

[0065] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, if these modifications and variations of the embodiments of the present application are included in the scope of the claims of the present application and their equivalent techniques, the present application also includes these modifications and variations.

Claims

1. A base substrate; a plurality of touch electrodes disposed on the base substrate; A touch module, wherein each of the touch electrodes includes a plurality of electrode blocks arranged along an extension direction, and an electrode block belonging to another touch electrode is distributed within an area to which at least one of the electrode blocks belongs, and the other touch electrode is a touch electrode other than the touch electrode including the at least one electrode block, the plurality of touch electrodes include a plurality of first touch electrodes extending along a first direction and a plurality of second touch electrodes extending along a second direction; Each of the first touch electrodes includes a plurality of first electrode blocks and a plurality of second electrode blocks, and each of the second touch electrodes includes a plurality of third electrode blocks and a plurality of fourth electrode blocks; A plurality of the first electrode blocks are sequentially arranged along the first direction in the same first touch electrode, the second electrode block is located in a region to which the third electrode block adjacent to the first electrode block belongs, the second electrode block and the third electrode block are insulated from each other, and the second electrode block and the adjacent first electrode block are connected in series with each other, A plurality of the third electrode blocks are sequentially arranged along the second direction in the same second touch electrode, the fourth electrode block is located in a region of the first electrode block adjacent to the third electrode block, the fourth electrode block and the first electrode block are insulated from each other, and the fourth electrode block and the adjacent third electrode block are connected in series with each other, The touch module further includes a first bridge portion, and the second electrode block and the adjacent first electrode block are connected in series with each other by the first bridge portion; The touch module further includes a second bridge portion, and the fourth electrode block and the adjacent third electrode block are connected in series with each other by the second bridge portion; all the electrode blocks are disposed on an electrode layer, the first bridge portion and the second bridge portion are disposed on a bridge layer, and an insulating layer is provided between the bridge layer and the electrode layer; Touch module.

2. A plurality of the first electrode blocks are arranged in series in the same first touch electrode along the first direction, A plurality of the third electrode blocks are sequentially arranged in the second direction in the same second touch electrode and are connected in series with each other. The touch module according to claim 1 .

3. the first touch electrode and the second touch electrode are located in the same film layer; the third electrode block has a first hollow region in a region corresponding to the second electrode block, and a forward projection of the first hollow region onto the base substrate covers a forward projection of the second electrode block onto the base substrate; the first electrode block has a second hollow region in a region corresponding to the fourth electrode block, and a forward projection of the second hollow region onto the base substrate covers a forward projection of the fourth electrode block onto the base substrate; The touch module according to claim 1 .

4. a forward projection of the first bridge portion onto the base substrate and a forward projection of the second bridge portion onto the base substrate do not overlap with each other; The touch module according to claim 1 .

5. the bridge layer is located between the electrode layer and the base substrate; The touch module according to claim 1 .

6. a first floating electrode located in the first hollow region and surrounding the second electrode block, the forward projection of the first floating electrode onto the base substrate being a closed hollow pattern surrounding the second electrode block; or a second floating electrode located in the second hollow region and surrounding the fourth electrode block, the forward projection of the second floating electrode onto the base substrate being a closed hollow pattern surrounding the fourth electrode block; The touch module according to claim 3 .

7. The first touch electrode and the second touch electrode are located in different film layers. The touch module according to claim 1 .

8. In each of the third electrode blocks, there are two second electrode blocks belonging to different first touch electrodes, and the two second electrode blocks in the same third electrode block are insulated from each other; or In each of the first electrode blocks, two of the fourth electrode blocks belonging to different second touch electrodes are provided, and the two fourth electrode blocks in the same first electrode block are insulated from each other. The touch module according to any one of claims 2 to 7.

9. the opposing outer boundaries of the second electrode block and the third electrode block have an uneven sawtooth shape, and / or the opposing outer boundaries of the fourth electrode block and the first electrode block have an uneven sawtooth shape; The touch module according to claim 1 .

10. The third electrode block has a rhombus shape, the second electrode block has a triangular shape, and two sides of the second electrode block are parallel to and correspond to two sides of the third electrode block; or The first electrode block has a rhombus shape, the fourth electrode block has a triangular shape, and two sides of the fourth electrode block are arranged parallel to and correspond to two sides of the first electrode block. The touch module according to claim 1 .

11. A touch display panel comprising the touch module according to any one of claims 1 to 10.

12. A display device comprising the touch display panel according to claim 11.

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