Capacitive sensing module, display panel and display device

Abstract

The present invention discloses a capacitive sensing module, a display panel and a display device. The capacitive sensing module includes: a substrate, including a first area and a second area, the second area at least partially surrounding the first area; a first electrode, a first wire, in the orthographic projection in the direction of the substrate, the first wire and the first electrode at least partially overlap, the first electrode and the first wire are located in the first area; a virtual electrode, a second wire, in the orthographic projection in the direction of the substrate, the second wire and the virtual electrode at least partially overlap, the virtual electrode and the second wire are located in the second area, the second wire includes a first line segment, the first line segment connects the first wire to the driving circuit. According to the capacitive sensing module, display panel and display device provided by the embodiments of the present invention, the transmittance of different areas is made as consistent as possible to improve the display performance.

Description

Technical Field

[0001] The present invention belongs to the technical field of touch control devices, and in particular relates to a capacitive sensing module, a display panel and a display device. Background Art

[0002] In existing electronic devices, such as fingerprint locks, touch locks and other touch fingerprint recognition devices used in the fields of security, aviation, etc., or display devices with touch functions such as mobile phones and tablets, capacitive sensing devices are generally provided. Compared with the non-capacitive sensing area in the panel, there will be a more obvious difference in light transmittance, which will produce a greater difference in vision and thus affect the display effect. Summary of the invention

[0003] The purpose of the present invention is to make the transmittance of different regions as consistent as possible and improve the display performance.

[0004] In a first aspect, to solve the above technical problems, an embodiment of the present invention provides a capacitive sensing module, comprising: a substrate, comprising a first area and a second area, the second area at least partially surrounding the first area; a first electrode, a first wire, in an orthographic projection in the direction of the substrate, the first wire and the first electrode at least partially overlap, the first electrode and the first wire are located in the first area; a virtual electrode, a second wire, in an orthographic projection in the direction of the substrate, the second wire and the virtual electrode at least partially overlap, the virtual electrode and the second wire are located in the second area, the second wire comprises a first line segment, and the first line segment connects the first wire to a driving circuit.

[0005] In a second aspect, an embodiment of the present invention further provides a display panel, comprising a display module and a capacitive sensing module, wherein the capacitive sensing module is located above the display module, the capacitive sensing module is the capacitive sensing module described above, the display module comprises a display area, the first area and the second area are located in the display area, and the side of the substrate on which the first electrode is provided faces the display module.

[0006] In a third aspect, an embodiment of the present invention further provides a display device, comprising the display panel described above.

[0007] By adopting the technical solution of the embodiment of the present invention, the first area is provided with capacitive sensing by arranging the first electrode and the first wire in the first area, and in the second area arranged around the first area, the transmittance in the first area and the second area is made as consistent as possible by setting the virtual electrode and the second wire, so as to avoid the large difference in transmittance between the first area and the second area affecting the visual effect. On this basis, since the first wire located in the first area needs to be electrically connected to the driving circuit through the signal line to realize the capacitive sensing of the first area, and the connected signal line will pass through the second area, in order to avoid the difference between the transmittance of the second area and the transmittance of the first area caused by the setting of the signal line, the first wire segment in the second wire is reused as part of the signal line to connect the first wire and the driving circuit, so as to ensure the consistency of the transmittance of the first area and the second area without affecting the realization of capacitive sensing in the first area, and ensure a better display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0009] Figure 1 is a top view of a capacitive sensing module provided by an embodiment of the present invention;

[0010] Figure 2 yes Figure 1 A partial enlarged view of the capacitive sensing module provided in;

[0011] Figure 3 yes Figure 2 A partial enlarged view of part A;

[0012] Figure 4 yes Figure 3 Cross-section of the middle MM;

[0013] Figure 5 yes Figure 2 A partial enlarged view of part B;

[0014] Figure 6 yes Figure 5 A partial cross-sectional view of a capacitive sensing module NN;

[0015] Figure 7 yes Figure 5 A partial cross-sectional view of another capacitive sensing module NN;

[0016] Figure 8 yes Figure 2A schematic diagram of the structure of a first signal line;

[0017] Fig. 9 is a top view of a capacitive sensing module provided by another embodiment of the present invention;

[0018] Fig.10 yes Fig. 9 A partial enlarged view of the capacitive sensing module provided in;

[0019] Fig.11 A top view of a capacitive sensing module provided by another embodiment of the present invention;

[0020] Fig.12 yes Fig.11 A partial enlarged view of the capacitive sensing module provided in;

[0021] Fig.13 A top view of a capacitive sensing module provided by yet another embodiment of the present invention;

[0022] Fig.14 yes Fig.13 A partial enlarged view of the capacitive sensing module provided in;

[0023] Fig.15 is a top view of a display panel provided by an embodiment of the present invention;

[0024] Fig.16 yes Fig.15 A schematic diagram of the cross-sectional structure of the display panel is shown in FIG.

[0025] In the attached figure:

[0026] 1-substrate; 11-second area; 12-first area; 13-binding area; 2-virtual electrode; 3-second wire; 31-third sub-wire; 311-first line segment; 32-fourth sub-wire; 4-first electrode; 5-first wire; 51-first sub-wire; 52-second sub-wire; 6-signal line; 61-first signal line; 611-third line segment; 612-second line segment; 7-driving circuit; 8-display panel; 81-display module; 82-capacitive sensing module; 9-rigid transparent substrate; D1-display area; D2-non-display area; W-first direction; L-second direction. DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] In order to better understand the present invention, Figures 1 to 8 The touch control device, the electronic device and the manufacturing method of the touch control device according to the embodiments of the present invention are described in detail.

[0030] See also Figure 1 and Figure 2 , Figure 1 FIG. 1 shows a top view of a capacitive sensing module according to an embodiment of the present invention. Figure 2 Shows Figure 1 A partial enlarged view of the capacitive sensing module in the figure. The capacitive sensing module can be applied to security, aerospace, production, life and other fields, such as fingerprint locks with touch and fingerprint recognition functions, mobile phones and computers with display, touch or fingerprint recognition functions, etc., without specific limitation here.

[0031] See also Figures 1 to 7 The capacitive sensing module includes a substrate 1, the substrate 1 includes a first region 12 and a second region 11, the second region 11 at least partially surrounds the first region 12; the first electrode 4 and the first wire 5, in the orthographic projection in the direction of the substrate 1, the first wire 5 and the first electrode 4 at least partially overlap (such as Figure 6 and Figure 7 ), the first electrode 4 and the first wire 5 are located in the first area 12; the virtual electrode 2, the second wire 3, the orthographic projection in the direction of the substrate 1, the second wire 3 and the virtual electrode 2 at least partially overlap (such as Figure 5 ), the virtual electrode 2 and the second wire 3 are located in the second area 11, and the second wire 3 includes a first line segment 311, and the first line segment 311 connects the first wire 5 to the driving circuit 7. By reusing the first line segment 311 in the second wire 3 as a part of the signal line 6, it is used to connect the first wire 5 to the driving circuit 7, and is used to sense the capacitance signal of the first area 12, while ensuring that the consistency of the transmittance in the first area 12 and the second area 11 is higher.

[0032] Specifically, the first electrode 4 and the first wire 5 are arranged in the first area 12, and in the second area 11 arranged around the first area 12, the virtual electrode 2 and the second wire 3 are arranged to make the transmittance in the first area 12 and the second area 11 as consistent as possible, so as to avoid the large difference in transmittance between the first area 12 and the second area 11 affecting the visual effect. On this basis, in order to enable the position located in the first area 12 to generate capacitive sensing to achieve the required touch, fingerprint recognition and other functions, the first electrode 4 and the first wire 5 are electrically connected to the driving circuit 7 located in the binding area 13. That is, the multiple first wires 5 located in the first area 12 are electrically connected to the driving circuit 7 through multiple signal lines 6 respectively. After the first wires 5 and the driving circuit 7 are connected through the signal lines 6, the distance between the first electrodes 4 is changed by touching or pressing to generate the corresponding capacitive sensing signal, and the capacitive sensing signal is transmitted to the driving circuit 7 through the connected signal lines 6 for identification and judgment, etc., so as to realize the capacitive sensing of the first area 12. When the signal line 6 connects the first conductor 5 to the driving circuit 7, part of the signal line 6 will pass through the second area 11, and the part of the signal line 6 passing through the second area 11 is a non-transparent metal line, so that the metal line blocks the corresponding second area 11, resulting in a decrease in the transmittance of this part, causing a difference between the transmittance of the second area 11 and the transmittance of the first area 12. Therefore, in order to prevent the signal line 6 passing through the second area 11 from affecting the transmittance of the second area 11, the first line segment 311 in the second conductor 3 is reused as part of the signal line 6 to connect the first conductor 5 to the driver, and the signal connection between the first area 12 and the external can be realized without adding an additional structure that affects the transmittance in the second area 11, while ensuring the consistency of the transmittance of the first area 12 and the second area 11, thereby ensuring a better display effect.

[0033] It can be understood that, for the first electrode 4 and the first wire 5 arranged in the first area 12, refer to Figure 7 , can be located on two opposite sides of the substrate 1 in the thickness direction. When the first electrode 4 and the first wire 5 need to be connected, the electrical connection between the first electrode 4 and the first wire 5 can be achieved by setting a through hole on the substrate 1, or, refer to Figure 6 , the first electrode 4 and the first wire 5 can also be located on the same side of the substrate 1 in the thickness direction, as long as the first electrode 4 and the first wire 5 at least partially overlap in the orthographic projection in the direction of the substrate 1, and no specific limitation is made here. Similarly, for the virtual electrode 2 and the second wire 3 arranged in the second area 11, they can also be set on the same side or both sides in the thickness direction of the substrate 1, so that in the orthographic projection in the direction of the substrate 1, the virtual electrode 2 and the second wire 3 at least partially overlap, which will not be repeated here.

[0034] Optionally, for the first electrode 4 arranged in the first area 12 and the virtual electrode 2 in the second area 11, in order to avoid the arranged electrodes reducing the transmittance of the corresponding areas, the first electrode 4 and the virtual electrode 2 are both transparent electrodes, and the transparent electrodes are composed of a plurality of transparent electrode blocks, so that the transparent electrode blocks are arranged in arrays in the first area 12 and the second area 11, respectively.

[0035] The following is a detailed description taking the example that the first electrode 4 and the first wire 5 are located on the same side of the substrate 1 in the thickness direction, the virtual electrode 2 and the second wire 3 are located on the same side of the substrate 1 in the thickness direction, and the first electrode 4 and the virtual electrode 2 are located on the same side of the substrate 1 in the thickness direction.

[0036] In a specific embodiment, referring to Figure 1 and Figure 2 The first wire 5 includes a first sub-wire 51 and a second sub-wire 52. The first sub-wire 51 is connected to the first electrode 4. The first sub-wire 51 is arranged along a first direction W and extends along a second direction L. The first direction W intersects with the second direction L (refer to Figure 1 , the first direction W is the direction indicated by the arrow W, the second direction L is the direction indicated by the arrow L, and the first direction W and the second direction L have no positive or negative distinction, the arrows have no actual directionality, they are just schematic representations of the first direction W and the second direction L, the first direction W includes the direction of the arrow W and the opposite direction, the second direction L includes the direction of the arrow L and the opposite direction); the second sub-conductor 52 is arranged along the second direction L and extends along the first direction W, and the first line segment 311 connects at least one of the first sub-conductor 51 and the second sub-conductor 52 to the drive circuit 7. In the first area 12, the first sub-conductor 51 and the second sub-conductor 52 are arranged in an array, and the first sub-conductor 51 is connected to the corresponding electrode block located above and arranged in the same array in the thickness direction of the substrate 1. In order to realize touch sensing in the first area 12, the first sub-conductor 51 and the second sub-conductor 52 need to be connected to the driving circuit 7 through the signal line 6. Each signal line 6 connects each first sub-conductor 51 to the driving circuit 7 and each second sub-conductor 52 to the driving circuit 7, so that the sensing signal of the first area 12 is fed back to the driving circuit 7 through the signal line 6 to realize the touch sensing, fingerprint recognition and other functions of the first area 12.

[0037] Reference Figure 2 , Fig.10 and Fig.12The signal line 6 includes a plurality of first signal lines 61 and a plurality of second signal lines 62, each of the first signal lines 61 connects the first sub-conductor 51 to the driving circuit 7, and each of the second signal lines 62 connects the second sub-conductor 52 to the driving circuit 7, and the first signal line 61 and / or the second signal line 62 at least include a first line segment 311, that is, at least one of the first signal line 61 and the second signal line 62 reuses the first line segment 311 in the second area 11 as a signal connection line to avoid the additional metal signal line 6 from blocking the second area 11 and affecting the light transmission performance when the signal line 6 passes through the second area 11.

[0038] Reference Figure 2 , Figure 4 and Figure 6 The second conductor 3 includes a third sub-conductor 31 and a fourth sub-conductor 32. The third sub-conductor 31 is arranged along the first direction W and extends along the second direction L. The fourth sub-conductor 32 is arranged along the second direction L and extends along the first direction W. The first line segment 311 is at least one of the third sub-conductor 31 and the fourth sub-conductor 32. The third sub-conductor 31 and the fourth sub-conductor 32 are arranged in an array in the second area 11, respectively. The third sub-conductor 31 and the fourth sub-conductor 32 are not connected to each other. The third sub-conductor 31 and the fourth sub-conductor 32 are arranged in the second area 11 in the same array arrangement as the first area 12. The third sub-conductor 31, the fourth sub-conductor 32 and the electrode block arranged in the same array make the light transmittance in the second area 11 closer to the light transmittance in the first area 12, so as to avoid that when only the first electrode 4 and the first conductor 5 capable of generating a capacitance signal are arranged in the first area 12, the second area 11 adjacent to the first area 12 has a large difference in light transmittance.

[0039] Optionally, for the third sub-conductor 31 and the fourth sub-conductor 32 arranged in an array in the second area 11, in order to make the transmittance of the second area 11 closer to the transmittance of the first area 12, the line width of the first conductor 5 is the same as the line width of the second conductor 3 in the orthographic projection in the direction of the substrate 1. That is, the line widths of the first sub-conductor 51, the second sub-conductor 52, the third sub-conductor 31 and the fourth sub-conductor 32 in the orthographic projection in the direction of the substrate 1 are all set to be the same, and the same conductive material is used, so as to adjust the transmittance of the second area 11 to be closer to the transmittance of the first area 12.

[0040] When the first conductor 5 is arranged in the first area 12 and the second conductor 3 is arranged in the second area 11, when the first conductor 5 is connected to the driving circuit 7 through the signal line 6, the reused first line segment 311 is the third sub-conductor 31 or the fourth sub-conductor 32, and the first line segment 311 connects the first sub-conductor 51 to the driving circuit 7 or the second sub-conductor 52 to the driving circuit. Different situations may exist according to the different positional relationships among the first area 12, the second area 11 and the binding area 13 for binding and connecting the driving circuit 7. Several specific embodiments are listed below for detailed description, but are not limited to the following situations.

[0041] In some specific embodiments, reference Figure 1 and Figure 2 , the driving circuit 7 is located on the side of the substrate 1 facing the first electrode 4, the substrate 1 includes a binding area 13, the binding area 13 is located on the side of the first area 12 away from the second area 11 in the first direction W, and the driving circuit 7 is bound and connected to the binding area 13. In this arrangement of the first area 12 and the second area 11, the first area 12 is arranged on the side of the second area 11 close to the binding area 13 in the first direction W, so when the second sub-conductor 52 is connected to the driving circuit 7 through the second signal line 62, the second signal line 62 will not pass through the second area 11, and the second signal line 62 at this time does not include the first line segment 311. When the first sub-conductor 51 is connected to the driving circuit 7 through the first signal line 61, at least part of the first signal line 61 needs to pass through the second area 11, and the first signal line 61 extending from the first area 12 includes at least the first line segment 311, that is, the first signal line 61 reuses the first line segment 311 in the second area 11. When the first sub-conductor 51 is connected to the driving circuit 7 through the first signal line 61, by reusing the first line segment 311, the first signal line 61 does not add any additional structure that blocks the second area 11 when passing through the second area 11, so as to avoid destroying the consistency of the light transmittance between the first area 12 and the second area 11.

[0042] Reference Figure 2 As can be seen from the figure, the setting that the line width of the first line segment 311 is wider than the line width of other conductors is only to distinguish the first line segment 311 from the first sub-conductor 51, the third sub-conductor 31, etc. through the form of thickening, and does not represent the actual line width. The first line segment 311 is thickened in the following figures for this purpose, and it will not be emphasized separately later.

[0043] For the first line segment 311 located in the second area 11 and included in the first signal line 61, refer to Figure 2, the first line segment 61 connects the first sub-conductor 51 to the driving circuit 7, and the first line segment 311 may be the third sub-conductor 31. In the extension direction of the first sub-conductor 51 along the first direction W, the third sub-conductor 31 located on the same straight line as the corresponding first sub-conductor 51 is the first line segment 311 set, and by reusing the third sub-conductor 31 with the closest distance as the first line segment 311, the total length of the signal line 6 located in the first area 12 and the second area 11 is shortened to improve the light transmittance.

[0044] Reference Figure 2 and Figure 8 Taking the first line segment 311 as a part of the first signal line 61 as an example, the first signal line 61 includes not only the first line segment 311 of the third sub-conductor 31 of the multiplexing part located in the second area 11, but also a second line segment 612 and a third line segment 611 connected to both ends of the first line segment 311. The second line segment 612 is led out from one end of the first line segment 311 located in the second area 11 and enters the first area 12. The second line segment 612 connects the first line segment 311 with the first sub-conductor 51 in the first area 12. The third line segment 611 is led out from the other end of the first line segment 311 located in the second area 12 and enters the binding area 13, and is connected to the driving circuit 7, thereby realizing the electrical connection of the first sub-conductor 51 with the driving circuit 7 by the first signal line 61. In the adjacent first area 12 and second area 11, there may be a certain gap between the first sub-conductor 51, the second sub-conductor 52 and the edge of the first area 12, and there may be a certain gap between the third sub-conductor 31, the fourth sub-conductor 32 and the edge of the second area 11, that is, there is a certain distance between the first line segment 311 and any of the first sub-conductor 51 and the second sub-conductor 52. Therefore, the first line segment 311 and the first electrode 4 in the first area 12 and the second area 11 are connected by the second line segment 612. In addition, the second line segment 612 is set to be the shortest line segment that realizes the connection between the first line segment 311 and the first electrode 4, so as to minimize the addition of additional metal wires and avoid large differences in light transmittance at different positions.

[0045] Optionally, the density of the first wires arranged in the first area 12 is the same as the density of the second wires 3 arranged in the second area 11, so that the light transmittance in the first area 12 and the second area 11 tends to be more consistent.

[0046] Alternatively, for the first line segment 311 included in the first signal line 61 and located in the second area 11, refer to Fig. 9 and Fig.10, the first line segment 311 may also be formed by combining the third sub-conductor 31 and the fourth sub-conductor 32. The first line segment 311 connects the first sub-conductor 51 to the driving circuit 7, and the third sub-conductors 31 extending along the second direction L are arranged at intervals. The third sub-conductor 31 and the part of the fourth sub-conductor 32 intersecting therewith are combined to form the first line segment 311. In the first line segment 311 formed by combining the third sub-conductor 31 and the fourth sub-conductor 32 to form a bent structure, in order to facilitate that different first sub-conductors 51 can be connected to the driving circuit 7 through the bent first line segment 311, in the first line segment 311 formed by forming the bent structure, if more than two third sub-conductors 31 arranged at intervals are used, the adjacent disconnected third sub-conductors 31 are connected through auxiliary line segments to achieve signal connectivity, and other third sub-conductors 31 arranged at intervals will not cause signal interference to the signal.

[0047] In another specific embodiment, referring to Fig.11 , Fig.12 , Fig.13 and Fig.14 , the driving circuit 7 is located on the side of the substrate 1 away from the first electrode 4 in the first direction W, and the second area 11 is located between the first area 12 and the binding area 13. In this arrangement of the first area 12 and the second area 11, when the first sub-conductor 51 is connected to the driving circuit 7 by the first signal line 61 and the second sub-conductor 52 is connected to the driving circuit 7 by the second signal line 62, the first signal line 61 and the second signal line 62 may pass through the second area 11 to avoid occupying too much frame space through the winding of the external frame, which is not conducive to wiring and the realization of a narrow frame. When at least one of the first signal line 61 and the second signal line 62 passes through the second area 11, the corresponding signal line 6 will include a first line segment 311, so as to achieve signal connection by reusing the first line segment 311 in the second area 11, while avoiding adding an additional structure to the second area 11 to block the second area 11, thereby ensuring the consistency of the light transmittance of the first area 12 and the second area 11.

[0048] Reference Fig.11 and Fig.12 The first line segment 311 connects the first sub-conductor 51 with the driving circuit 7, the third sub-conductor 31 is a plurality of line segments arranged at intervals along the second direction L, the first line segment 311 is formed by connecting a plurality of third sub-conductors 31 arranged at intervals along the second direction L, or the third sub-conductor 31 is a line segment extending along the second direction L, and the first line segment 311 is the third sub-conductor 31.

[0049] Reference Fig.13 and Fig.14, the first line segment 311 connects the second sub-conductor 52 to the driving circuit 7, the first line segment 311 is the fourth sub-conductor 32, and the third sub-conductor 31 extending along the second direction L is a plurality of line segments arranged at intervals. At this time, the first signal line 61 connecting the first sub-conductor 51 to the driving circuit 7 can go through the external frame, and the first line segment 311 of the second area 11 can be reused, which is not specifically limited here. By utilizing the internal routing of the second area 11 without affecting the transmittance of the first area 12 and the second area 11, the signal line 6 will not occupy too much space in the frame, which is conducive to the realization of a narrow frame.

[0050] It should be emphasized here that no matter which of the above-mentioned methods is used to connect the first electrode 4 to the driving circuit 7 through the signal line 6, the specific implementation method of connecting the first sub-conductor 51 and / or the second sub-conductor 52 by reusing the first line segment 311 can be selected according to the different matching forms of the first area 12 and the second area 11, and can also be selected according to the width of the frame. When a narrow frame needs to be achieved and external wiring needs to be avoided as much as possible, internal wiring can be used to reduce external wiring while ensuring that the transmittance areas of the first area 12 and the second area 11 are consistent. Alternatively, corresponding settings can be made according to other situations, which are not specifically limited here.

[0051] Optional, see Figure 4 and Figure 6 When the first electrode 4 and the dummy electrode 2 are both located on the same side of the substrate 1 in the thickness direction, in order to facilitate the connection of the first electrode 4 with the driving circuit 7 located in the binding area 13 on the substrate 1 through the signal line 6, the first sub-conductor 51 and the third sub-conductor 31 are arranged in the same layer, and the second sub-conductor 52 and the fourth sub-conductor 32 are arranged in the same layer. And when the first line segment 311 located in the upper layer of the substrate 1 is connected to the driving circuit 7 on the substrate 1 through the signal line 6, the signal line 6 can be guided to the substrate 1 by setting a line exchange hole on the corresponding layer where the first sub-conductor 51 and the second sub-conductor 52 are set.

[0052] Optional, see Fig.15 and Fig.16 The capacitive sensing module 82 further includes a rigid transparent substrate 9, which is adhesively connected to the substrate 1, and the first electrode 4, the virtual electrode 2, and the driving circuit 7 located in the binding area 13 are located between the substrate 1 and the rigid transparent substrate 9. The rigid transparent substrate 9 is provided to not only protect the first electrode 4, the virtual electrode 2, etc. located between the rigid transparent substrate 9 and the substrate 1 from damage, but also the rigid transparent substrate 9 can be used as a support plate. When the capacitive sensing module 82 is connected to the corresponding electronic device, it is connected to the corresponding display module 81 through the rigid transparent substrate 9, which can ensure a good connection effect and is not prone to wrinkle deformation.

[0053] It is understandable that the substrate 1 in the capacitive sensing module 82 can be a flexible substrate 1 or a hard substrate, which is not specifically limited here. Moreover, when the substrate 1 is a hard substrate, in order to enable the first electrode 4 located below to generate a capacitive signal, the thickness of the hard substrate is less than or equal to 0.3 mm, so that the corresponding capacitance can be sensed by touching the side of the hard substrate away from the first electrode 4 to form a corresponding capacitance.

[0054] The present application provides a display panel, referring to Fig.15 and Fig.16 The display panel 8 may be an organic light emitting diode (OLED) display panel or a liquid crystal display (LCD) display panel, which is not specifically limited here. The display panel 8 includes a display module 81 and a capacitive sensing module 82, the capacitive sensing module 82 is located above the display module 81, the capacitive sensing module 82 is the capacitive sensing module 82 described in any of the above embodiments, the display module 81 includes a display area D1 and a non-display area D2 at least partially surrounding the display area D1, the first area 12 and the second area 11 are located in the display area D1, the binding area 13 is located in the non-display area D2, and the side of the substrate 1 provided with the first electrode 4 faces the display module 82. This configuration enables the capacitive sensing module 82 to penetrate the cover of the display module 81 when it is integrated in the display area D1 corresponding to the display module 81, thereby realizing fingerprint recognition and touch functions. In addition, the configuration of the capacitive sensing module 82 makes the light transmittance at different positions of the display area D1 tend to be consistent, thereby minimizing the impact on the light transmittance performance of the display area D1.

[0055] The present application also provides a display device, including the display panel 8 described above. The display device can be a mobile phone, computer, etc. with touch and fingerprint recognition functions, which is not specifically limited here.

[0056] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A capacitive sensing module, characterized in that: include: a substrate comprising a first region and a second region, wherein the second region at least partially surrounds the first region; A first electrode and a first wire, wherein in an orthographic projection in the direction of the substrate, the first wire and the first electrode at least partially overlap, and the first electrode and the first wire are located in the first region; A virtual electrode and a second wire, in an orthographic projection in the direction of the substrate, the second wire and the virtual electrode at least partially overlap, and the virtual electrode and the second wire are located in the second area, The second conductive line includes a first line segment, the first line segment is multiplexed as a part of a signal line, and is used to connect the first conductive line to a driving circuit, the first electrode generates a capacitive sensing signal, and the capacitive sensing signal is conducted through the signal line; The first conductive line includes: a first sub-conductor and a second sub-conductor; the first sub-conductor is connected to the first electrode, the first sub-conductor is arranged along a first direction and extends along a second direction, and the first direction intersects the second direction; the second sub-conductor is arranged along the second direction and extends along the first direction, and the first line segment connects at least one of the first sub-conductor and the second sub-conductor to the driving circuit; The second conductive line includes: a third sub-conductor and a fourth sub-conductor; the third sub-conductor is arranged along the first direction and extends along the second direction; the fourth sub-conductor is arranged along the second direction and extends along the first direction; the first line segment is a part of at least one of the third sub-conductor and the fourth sub-conductor.

2. The capacitive sensing module according to claim 1, characterized in that: The first line segment connects the first sub-conductor to the driving circuit, and the first line segment is the third sub-conductor.

3. The capacitive sensing module according to claim 1, characterized in that: The first line segment connects the second sub-conductor to the driving circuit, the first line segment is the fourth sub-conductor, and the third sub-conductor extending along the second direction is a plurality of line segments arranged at intervals.

4. The capacitive sensing module according to claim 1, characterized in that: The first line segment connects the first sub-conductor to the driving circuit, and the third sub-conductor extending along the second direction is a plurality of line segments arranged at intervals, and the third sub-conductor and the part of the fourth sub-conductor intersecting therewith are combined to form the first line segment.

5. The capacitive sensing module according to claim 1, characterized in that: The first sub-conductor and the third sub-conductor are arranged in the same layer, and the second sub-conductor and the fourth sub-conductor are arranged in the same layer.

6. The capacitive sensing module according to any one of claims 1 to 3, characterized in that: The density at which the first conductive lines are arranged in the first region is the same as the density at which the second conductive lines are arranged in the second region.

7. The capacitive sensing module according to any one of claims 1 to 5, characterized in that: In an orthographic projection in the substrate direction, a line width of the first conductive line is the same as a line width of the second conductive line.

8. The capacitive sensing module according to any one of claims 1 to 5, characterized in that: Also included is a second line segment connecting the first line segment and the first conductive line.

9. The capacitive sensing module according to any one of claims 1 to 5, characterized in that: The driving circuit is located on a side of the substrate facing the first electrode. The substrate comprises a binding area. The binding area is located on a side of the first area away from the second area in a first direction. The driving circuit is bound and connected to the binding area.

10. The capacitive sensing module according to claim 9, characterized in that: It also includes a rigid transparent substrate, which is adhesively connected to the substrate, and the first electrode, the virtual electrode and the driving circuit located in the binding area are located between the substrate and the rigid transparent substrate.

11. The capacitive sensing module according to any one of claims 1 to 5, characterized in that: The substrate is a hard substrate, and the thickness of the hard substrate is less than or equal to 0.3 mm.

12. A display panel, characterized in that: The display panel includes a display module and a capacitive sensing module, the capacitive sensing module is located above the display module, the capacitive sensing module is the capacitive sensing module according to any one of claims 1 to 11, the display module includes a display area, the first area and the second area are located in the display area, and the side of the substrate provided with the first electrode faces the display module.

13. A display device, characterized in that: Comprising the display panel according to claim 12.

Images