Touch substrate, touch display panel and electronic equipment

Abstract

The invention discloses a touch substrate, a touch display panel and electronic equipment, and relates to the technical field of touch. The touch substrate comprises a plurality of first electrodes, a plurality of second electrodes and a plurality of third electrodes. The first electrodes and the second electrodes are used for detecting the position of touch operation on the touch substrate. The first electrodes and the third electrodes are used for detecting the position of pressing operation on the touch substrate. Thus, when the touch substrate is applied to the electronic equipment, if the electronic equipment is in a conventional use environment, a user can control the electronic equipment through the touch operation on the touch substrate; if the electronic device is located in water, the user can control the electronic device through the pressing operation on the touch substrate.

Description

Technical Field

[0001] The present application relates to the field of touch technology, and in particular to a touch substrate, a touch display panel and an electronic device. Background Art

[0002] Electronic devices such as mobile phones, tablet computers, smart watches, etc. generally include a touch substrate, and users can control the electronic devices by touching the touch substrate.

[0003] In the related art, the touch substrate includes a plurality of first electrodes and a plurality of second electrodes. The plurality of first electrodes and the plurality of second electrodes form a plurality of sensing capacitors. When a user performs a touch operation on the touch substrate, since the human body is a conductor, the capacitance value of the sensing capacitor located at the position of the touch operation will be changed. Based on this, the processing module in the electronic device can determine the position of the touch operation by detecting the capacitance values ​​of the plurality of sensing capacitors, thereby identifying the touch operation.

[0004] As the waterproof performance of electronic devices is enhanced, the demand for electronic devices to operate in water is growing. However, since water is also a conductor and can change the capacitance value of the sensing capacitor, the user cannot control the electronic device when the electronic device applied with the touch substrate in the related art is in water. Summary of the invention

[0005] The embodiment of the present application provides a touch substrate, a touch display panel and an electronic device. When the electronic device to which the touch substrate is applied is in water, a user can control the electronic device by pressing the touch substrate. The technical solution is as follows:

[0006] In a first aspect, a touch control substrate is provided. The touch control substrate is applied to an electronic device so that a user can control the electronic device by touching or pressing the touch control substrate. The touch control substrate includes a plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes.

[0007] The plurality of first electrodes and the plurality of second electrodes are not connected to each other, and a plurality of first capacitors are formed between the plurality of first electrodes and the plurality of second electrodes. The plurality of first electrodes and the plurality of second electrodes are used to detect the position of a touch operation on the touch substrate. The plurality of second electrodes and the plurality of third electrodes are not connected to each other. The plurality of first electrodes and the plurality of third electrodes are not connected to each other, and a plurality of second capacitors are formed between the plurality of first electrodes and the plurality of third electrodes. The plurality of first electrodes and the plurality of third electrodes are used to detect the position of a pressing operation on the touch substrate.

[0008] In an embodiment of the present application, the touch substrate includes a plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes. The plurality of first electrodes and the plurality of second electrodes are used to detect the position of a touch operation on the touch substrate. The plurality of first electrodes and the plurality of third electrodes are used to detect the position of a pressing operation on the touch substrate. In this way, when the touch substrate is applied to an electronic device, if the electronic device is in a conventional use environment, the user can control the electronic device by a touch operation on the touch substrate; if the electronic device is in water, the user can control the electronic device by a pressing operation on the touch substrate.

[0009] In some embodiments, the touch control substrate further includes a plurality of first connecting members and a plurality of second connecting members.

[0010] Specifically, the plurality of first electrodes may be arranged in an array. The plurality of first electrodes arranged in an array are connected by a plurality of first connecting members to form a plurality of first electrode strips. Each of the plurality of first electrode strips extends along a first direction, and the plurality of first electrode strips are arranged along a second direction.

[0011] The plurality of second electrodes may be arranged in an array. The plurality of second electrodes arranged in an array are connected by a plurality of second connectors to form a plurality of second electrode strips. Each of the plurality of second electrode strips extends along the second direction, and the plurality of second electrode strips are arranged along the first direction. Here, the first direction and the second direction are perpendicular to each other, and the first direction and the second direction are perpendicular to the thickness direction of the touch substrate.

[0012] In some embodiments, the plurality of first connectors and the plurality of second connectors include corresponding first connectors and second connectors. Here, the corresponding first connectors and second connectors refer to first connectors and second connectors that are cross-arranged along the thickness direction of the touch substrate.

[0013] Specifically, the touch substrate may include a first metal layer, a second metal layer and an insulating layer. The insulating layer is located between the first metal layer and the second metal layer. Here, the plurality of first electrodes and the plurality of second electrodes are all located in the first metal layer. In the corresponding first connector and the second connector, one of the first connector and the second connector is located in the first metal layer, and the other extends from the first metal layer to the second metal layer, so that the first connector and the second connector are insulated. The plurality of third electrodes are located in the second metal layer. In this way, the setting of the third electrode does not increase the thickness of the touch substrate.

[0014] In some embodiments, each first electrode of the plurality of first electrodes and each second electrode of the plurality of second electrodes is in a diamond shape.

[0015] In some embodiments, each of the plurality of third electrodes extends along the second direction, and the plurality of third electrodes are arranged along the first direction.

[0016] In some embodiments, along the thickness direction of the touch substrate, any one of the plurality of first electrodes overlaps with at least one of the plurality of third electrodes, so that the capacitance values ​​of the plurality of second capacitors formed by the plurality of first electrodes and the plurality of third electrodes can be increased, which is beneficial for the plurality of first electrodes and the plurality of third electrodes to detect the position of the pressing operation on the touch substrate.

[0017] Furthermore, along the thickness direction of the touch substrate, any second electrode among the plurality of second electrodes overlaps with at least one third electrode among the plurality of third electrodes. Moreover, the overlapping area between any first electrode and the third electrode is less than or equal to the overlapping area between any second electrode and the third electrode. Since the plurality of first electrodes need to input drive signals when the touch substrate is working, it is designed here that along the thickness direction of the touch substrate, the third electrode overlaps more with the second electrode and less with the first electrode, so as to reduce the influence of the third electrode on the time of inputting the drive signal to the first electrode.

[0018] In some specific embodiments, the plurality of third electrodes are located in the second metal layer. Along the thickness direction of the touch substrate, the projections of the plurality of second electrodes on the second metal layer completely fall within the coverage of the third electrodes.

[0019] In some embodiments, any one of the plurality of third electrodes is provided with a hollowed-out patterned structure. Along the thickness direction of the touch substrate, the patterned structure does not overlap with the first electrode, and the patterned structure does not overlap with the second electrode. The hollowed-out patterned structure can reduce the parasitic capacitance generated by the provision of the third electrode.

[0020] In a second aspect, a touch display panel is provided, comprising a display substrate and a touch substrate as described in any one of the first aspects. The display substrate and the touch substrate are stacked, and the touch substrate is located on the light emitting side of the display substrate.

[0021] In some embodiments, the touch substrate includes a first metal layer, a second metal layer and an insulating layer. The second metal layer is located between the display substrate and the insulating layer, and the insulating layer is located between the second metal layer and the first metal layer. Multiple first electrodes and multiple second electrodes are both located in the first metal layer. Multiple third electrodes are located in the second metal layer. When the multiple first electrodes and the multiple second electrodes detect the position of the touch operation on the touch substrate, the multiple third electrodes are used to input electromagnetic isolation signals. In this way, when the multiple first electrodes and the multiple second electrodes detect the position of the touch operation on the touch substrate, the multiple third electrodes can isolate the display noise of the display substrate, thereby improving the accuracy of detecting the position of the touch operation and improving the display effect of the display substrate.

[0022] In some embodiments, when the plurality of first electrodes and the plurality of third electrodes detect the position of a pressing operation on the touch substrate, the plurality of second electrodes may also be used to input an electromagnetic isolation signal.

[0023] In a third aspect, an electronic device is provided, comprising a processing module and a touch display panel as described in any one of the second aspects.

[0024] The processing module is connected to a plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes.

[0025] The processing module is used to: when the electronic device is in touch mode, transmit a driving signal to the multiple first electrodes and detect the capacitance values ​​of the multiple first capacitors; and determine the position of the touch operation on the touch substrate according to the capacitance values ​​of the multiple first capacitors.

[0026] The processing module is also used to: transmit drive signals to the multiple first electrodes and detect the capacitance values ​​of the multiple second capacitors when the electronic device is in the voltage control mode; and determine the position of the pressing operation on the touch substrate according to the capacitance values ​​of the multiple second capacitors.

[0027] In some embodiments, the processing module is further used to: transmit electromagnetic isolation signals to multiple third electrodes when the electronic device is in touch mode; or / and transmit electromagnetic isolation signals to multiple second electrodes when the electronic device is in voltage control mode.

[0028] In some embodiments, the processing module is further used to: determine whether the electronic device switches from touch mode to voltage control mode when a first control instruction is received; and determine whether the electronic device switches from voltage control mode to touch mode when a second control instruction is received.

[0029] In some embodiments, the processing module is further used to: when the electronic device is in the touch control mode, if it is detected that the number of positions of the touch operation on the touch substrate reaches a preset number, switch the electronic device from the touch control mode to the voltage control mode.

[0030] The technical effects obtained by the above-mentioned second and third aspects are similar to the technical effects obtained by the corresponding technical means in the above-mentioned first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the appearance of a first electronic device in the related art;

[0032] Figure 2 is a schematic diagram of the appearance of a second electronic device in the related art;

[0033] Figure 3 It is a schematic diagram of a cross-sectional structure of a touch display panel along a third direction in the related art;

[0034] Figure 4 It is a structural schematic diagram of a touch control substrate in the related art;

[0035] Figure 5 is a schematic structural diagram of a first electrode strip in the related art;

[0036] Figure 6 is a schematic structural diagram of a second electrode strip in the related art;

[0037] Figure 7 It is a schematic diagram of a cross-sectional structure of a touch control substrate along a third direction in the related art;

[0038] Figure 8 yes Figure 4 A magnified view of the structure in the middle region A;

[0039] Fig. 9 It is a scene diagram of a user controlling an electronic device through touch operation in the related art;

[0040] Fig.10 It is a magnetic field distribution diagram formed by the capacitor CM when the user does not touch the electronic device in the related art;

[0041] Fig.11 It is a magnetic field distribution diagram formed by the capacitor CM and the human body when a user touches an electronic device in the related art;

[0042] Fig.12 is a schematic diagram of the arrangement of a first plurality of first electrodes and a plurality of second electrodes provided in an embodiment of the present application;

[0043] Fig.13 is a schematic diagram of the arrangement of the first plurality of third electrodes provided in an embodiment of the present application;

[0044] Fig.14 is a schematic diagram of the cross-sectional structure of the first touch control substrate provided in an embodiment of the present application along the third direction;

[0045] Fig.15 It is a schematic diagram of the working principle of a touch control substrate provided in an embodiment of the present application;

[0046] Fig.16 is a schematic diagram of the cross-sectional structure of the second touch control substrate provided in an embodiment of the present application along a third direction;

[0047] Fig.17 is a schematic diagram of relative positions of a first plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes provided in an embodiment of the present application;

[0048] Fig.18 is a schematic diagram of the arrangement of the second plurality of third electrodes provided in an embodiment of the present application;

[0049] Fig.19 is a schematic diagram of relative positions of a second plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes provided in an embodiment of the present application;

[0050] Fig. 20 is a schematic diagram of the arrangement of a second plurality of first electrodes and a plurality of second electrodes provided in an embodiment of the present application;

[0051] Fig.21 is a schematic diagram of the arrangement of a third plurality of third electrodes provided in an embodiment of the present application;

[0052] Fig. 22 is a schematic diagram of relative positions of a third type of multiple first electrodes, multiple second electrodes, and multiple third electrodes provided in an embodiment of the present application;

[0053] Fig.23 is a schematic diagram of the arrangement of a fourth plurality of third electrodes provided in an embodiment of the present application;

[0054] Fig.24 is a schematic diagram of relative positions of a fourth plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes provided in an embodiment of the present application;

[0055] Fig.25 is a schematic diagram of an arrangement of a plurality of first electrode strips and a plurality of second electrode strips provided in an embodiment of the present application;

[0056] Fig.26 is a schematic diagram of an arrangement of a plurality of first electrode strips provided in an embodiment of the present application;

[0057] Fig. 27 is a schematic diagram of the arrangement of a plurality of second electrode strips provided in an embodiment of the present application;

[0058] Fig.28 is a schematic diagram of a cross-sectional structure of a third touch control substrate provided in an embodiment of the present application along a third direction;

[0059] Fig.29 is a schematic diagram of the relative positions of a plurality of first electrode strips, a plurality of second electrode strips, and a plurality of third electrodes provided in an embodiment of the present application;

[0060] Fig.30 is a schematic diagram of the arrangement of a fifth plurality of third electrodes provided in an embodiment of the present application;

[0061] Fig.31 is a schematic diagram of a first second patterned structure provided in an embodiment of the present application;

[0062] Fig.32 is a schematic diagram of a second second patterned structure provided in an embodiment of the present application;

[0063] Fig.33 is a schematic diagram of a third second patterned structure provided in an embodiment of the present application;

[0064] Fig.34 is a schematic diagram of a cross-sectional structure of a first touch display panel provided in an embodiment of the present application along a third direction;

[0065] Fig.35 is a schematic diagram of a cross-sectional structure of a second touch display panel provided in an embodiment of the present application along a third direction;

[0066] Fig.36 This is a display interface diagram of an electronic device provided in an embodiment of the present application.

[0067] The meanings of the figures in the related art are as follows:

[0068] 10. Electronic device; 10A. Touch display panel; 11. Touch substrate; 1101. First metal layer; 1102. Insulating layer; 1103. Second metal layer; 12. First electrode strip; 122. First electrode; 1221. First sub-electrode; 1222. Second sub-electrode; 124. First connector; 14. Second electrode strip; 142. Second electrode; 1421. Third sub-electrode; 1422. Fourth sub-electrode; 144. Second connector; 13. Display substrate;

[0069] The meanings of the figures in the embodiments of the present application are as follows:

[0070] 20. Touch control substrate; 201. First metal layer; 202. Insulating layer; 203. Second metal layer; 210. First electrode strip; 212. First electrode; 214. First connector; 220. Second electrode strip; 222. Second electrode; 224. Second connector; 230. Third electrode; 2302. First patterned structure; 2304. Second patterned structure; 30. Touch control display panel; 32. Display substrate; 34. Underlayer; 36. Protective layer; 41. Control setting option control; 42. Voltage control mode option control; 43. Intelligent control option control. DETAILED DESCRIPTION

[0071] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0072] It should be understood that the "multiple" mentioned in this application refers to two or more. In the description of this application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in order to facilitate the clear description of the technical solution of this application, the words "first" and "second" are used to distinguish between the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first" and "second" do not limit the quantity and execution order, and the words "first" and "second" do not limit them to be different.

[0073] Before explaining the touch control substrate provided in the embodiment of the present application in detail, the application scenarios and related technologies of the touch control substrate are first explained.

[0074] The electronic device 10 includes a mobile phone, a tablet computer, a wearable device, etc. The wearable device may be, for example, a smart watch, a wristband, etc. Figure 1 and Figure 2 1 is a schematic diagram of the appearance of two different electronic devices 10 in the related art. Figure 1 The electronic device 10 shown is a mobile phone. Figure 2 The electronic device 10 shown is a smart watch.

[0075] Generally, the electronic device 10 includes a touch display panel 10A. Figure 31 is a schematic diagram of a cross-sectional structure of a touch display panel 10A along a third direction Z in the related art. The third direction Z refers to the thickness direction of the touch display panel 10A. For the convenience of description, a first direction X and a second direction Y are also defined here. The first direction X and the second direction Y are both extension directions of the touch display panel 10A. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other. Figure 3 As shown, the touch display panel 10A includes a stacked display substrate 13 and a touch substrate 11. Among them, the display substrate 13 is used to display images. The touch substrate 11 is used to detect the user's touch operation on the touch substrate 11, so that the user can control the electronic device 10 through the touch operation on the touch substrate 11. The touch operation includes a touch click operation and a touch slide operation. It is easy to understand that the third direction Z is also the thickness direction of the display substrate 13 and the touch substrate 11; the first direction X and the second direction Y are both the extension directions of the display substrate 13, and are also the extension directions of the touch substrate 11.

[0076] In the related art of the embodiment of the present application, the touch substrate 11 is a mutual capacitance touch substrate. The structure of the mutual capacitance touch substrate 11 and the principle and process of the mutual capacitance touch substrate 11 detecting a user's touch operation on the touch substrate 11 are described below.

[0077] 1. Structure of the touch control substrate 11 .

[0078] Figure 4 FIG. 1 is a schematic diagram of the structure of a touch control substrate 11 in the related art. Figure 4 As shown, the touch control substrate 11 includes a plurality of first electrode strips 12 and a plurality of second electrode strips 14. The plurality here refers to two or more integers. The structure of the plurality of first electrode strips 12 is as follows: Figure 5 As shown, the structure of the plurality of second electrode strips 14 is as follows Figure 6 shown.

[0079] exist Figure 4 and Figure 5 In the related art shown in FIG. 1 , a total of eight first electrode strips 12 are shown, namely, 12a, 12b, 12c, 12d, 12e, 12f, 12g, and 12h. Figure 4 and Figure 5 As shown, each first electrode strip 12 extends along the first direction X, and the plurality of first electrode strips 12 are arranged along the second direction Y. Here, the plurality of first electrode strips 12 include a plurality of first electrodes 122 and a plurality of first connecting members 124. The plurality of first electrodes 122 are arranged Figure 5 Along the first direction X, two adjacent first electrodes 122 are connected via a first connecting member 124 , thereby forming a plurality of first electrode strips 12 .

[0080] exist Figure 4 and Figure 6 In the related art shown in FIG. 1 , a total of eight second electrode strips 14 are shown, namely, 14a, 14b, 14c, 14d, 14e, 14f, 14g, and 14h. Figure 4 and Figure 6 As shown, each second electrode strip 14 extends along the second direction Y, and the plurality of second electrode strips 14 are arranged along the first direction X. Here, the plurality of second electrode strips 14 include a plurality of second electrodes 142 and a plurality of second connecting members 144. The plurality of second electrodes 142 are Figure 6 Along the second direction Y, two adjacent second electrodes 142 are connected via a second connecting member 144 , thereby forming a plurality of second electrode strips 14 .

[0081] like Figure 4 As shown, the arrangement of the multiple first electrode strips 12 and the multiple second electrode strips 14 is as follows: along the third direction Z, any one of the first connectors 124 in each of the first electrode strips 12 is cross-arranged with a second connector 144 in a second electrode strip 14. In this way, each of the multiple first electrodes 122 can be located between the multiple second electrodes 142, and each of the multiple second electrodes 142 can be located between the multiple first electrodes 122. It is easy to understand that the multiple first electrode strips 12 and the multiple second electrode strips 14 are insulated from each other. For the convenience of description, any pair of first connectors 124 and second connectors 144 cross-arranged along the third direction Z are referred to as corresponding first connectors 124 and second connectors 144. Then, at the positions of the corresponding first connectors 124 and second connectors 144, the cross-sectional structure of the touch substrate 11 along the third direction Z can be as follows: Figure 7 shown.

[0082] Specifically, if Figure 7 As shown, the touch control substrate 11 includes a first metal layer 1101, a second metal layer 1103 and an insulating layer 1102. The insulating layer 1102 is located between the first metal layer 1101 and the second metal layer 1103. Here, all the first electrodes 122, the second electrodes 142, and the first connectors 124 are located in the first metal layer 1101. The second connectors 144 extend from the first metal layer 1101 to the second metal layer 1103. In this way, the corresponding first connectors 124 and the second connectors 144 form a bridge structure at the intersection position, which can avoid the first connectors 124 and the second connectors 144 being connected together.

[0083] based on Figures 4 to 7In the structure shown, in the touch control substrate 11, any first electrode 122 can form an inductive capacitor with the adjacent second electrode 142. That is, multiple first electrodes 122 and multiple second electrodes 142 will form multiple inductive capacitors. For example, Figure 8 yes Figure 4 A magnified view of the structure in area A. Figure 8 As shown, in Figure 4 In the region A, two first electrodes 122 and two second electrodes 142 are included. For ease of description, the two first electrodes 122 are respectively referred to as first sub-electrodes 1221 and second sub-electrodes 1222, and the two second electrodes 142 are respectively referred to as third sub-electrodes 1421 and fourth sub-electrodes 1422. Then: the first sub-electrode 1221 and the third sub-electrode 1421 form a first sub-capacitor C1; the first sub-electrode 1221 and the fourth sub-electrode 1422 form a second sub-capacitor C2; the second sub-electrode 1222 and the fourth sub-electrode 1422 form a third sub-capacitor C3; the second sub-electrode 1222 and the third sub-electrode 1421 form a fourth sub-capacitor C4.

[0084] 2. The principle of the touch control substrate 11 detecting the position of the touch operation.

[0085] When the touch substrate 11 is working, a driving signal is input into each first electrode 122. The driving signal is a positive voltage with a voltage value greater than 0 and fixed. Fig. 9 is a scene diagram of a user controlling an electronic device 10 through a touch operation in the related art. Fig. 9 The induced capacitance formed by the first electrode 122 and the second electrode 142 at the position of the user's touch operation is called capacitance CM. When the user does not touch the position of the electronic device 10, the magnetic field formed by the capacitance CM can be as follows: Fig.10 In this case, the capacitor CM has a first capacitance value. When the user touches the position of the electronic device 10, the magnetic field formed by the capacitor CM and the human body can be as shown in FIG. Fig.11 As shown, since the human body is a conductor, the human body forms a new capacitor CT with the first electrode 122, which changes the capacitance value of the capacitor CM, so that the capacitance value of the capacitor CM changes from the first capacitance value to the second capacitance value. Based on this, the electronic device 10 may also include a processing module, which is connected to all the first electrodes 122 and the second electrodes 142, and is used to output a driving signal to the first electrode 122 and detect the capacitance value of the induced capacitor. The processing module in the electronic device 10 can determine whether the user touches the location of the capacitor CM by detecting the capacitance value of the capacitor CM.

[0086] Generally, the processing module of the electronic device 10 may be provided with a preset capacitance value range. The preset capacitance value range satisfies the following conditions: when the user does not touch a certain position of the electronic device 10, the capacitance value of the sensing capacitor at the position when the first electrode 122 inputs a driving signal is within the preset capacitance value range; when the user touches the position of the electronic device 10, the capacitance value of the sensing capacitor at the position when the first electrode 122 inputs a driving signal is not within the preset capacitance value range.

[0087] 3. The process in which the touch control substrate 11 detects the position of the touch operation.

[0088] Still Figure 4 Taking the touch substrate 11 shown as an example, when the touch substrate 11 is working, multiple first electrode strips 12 will input driving signals in sequence. When any first electrode strip 12 inputs a driving signal, the processing module will detect the capacitance values ​​of multiple sensing capacitors through each second electrode strip 14, and determine the position of the touch operation accordingly. For example, when the first electrode strip 12a inputs a driving signal, if the processing module detects that the capacitance value of the sensing capacitor is not within the preset capacitance value range through the second electrode strip 14d, it indicates that the position of the touch operation is at the intersection of the first electrode strip 12a and the second electrode strip 14d. When the first electrode strip 12f inputs a driving signal, if the processing module detects that the capacitance value of the sensing capacitor is not within the preset capacitance value range through the second electrode strip 14h, it indicates that the position of the touch operation is at the intersection of the first electrode strip 12f and the second electrode strip 14h. In one detection cycle of the touch substrate 11, multiple first electrode strips 12 input driving signals one by one. Here, "one detection cycle" refers to the time length used for each first electrode strip 12 in the touch substrate 11 to input a driving signal once and only once. Generally, the touch control substrate 11 has multiple detection cycles within one second.

[0089] Easy to understand, in Figure 4 In area A, that is, in Figure 8 In the embodiment, since the first sub-electrode 1221 and the second sub-electrode 1222 are both sub-electrodes in the first electrode strip 12a, and the third sub-electrode 1421 and the fourth sub-electrode 1422 are both sub-electrodes in the second electrode strip 14a, when the capacitance value of any one of the first sub-capacitor C1, the second sub-capacitor C2, the third sub-capacitor C3, and the fourth sub-capacitor C4 is not within the preset capacitance value range, the processing module will obtain the result that the position of the touch operation is at the intersection of the first electrode strip 12a and the second electrode strip 14a. It is easy to understand that the touch sliding operation performed by the user on the touch substrate 11 is also a kind of touch operation. The essence of the touch sliding operation is that the processing module in the electronic device 10 determines the positions of multiple touch operations through the touch substrate 11 within the time of the touch sliding operation, thereby identifying the touch sliding operation.

[0090] As the waterproof performance of the electronic device 10 is enhanced, the demand for the electronic device 10 to operate in water is growing. For example, a user may use a mobile phone to take pictures in water; or a user may wear a smart watch or bracelet to swim or dive, and operate the electronic device 10 in the water to time, etc. However, since water is also a conductor, it can also change the capacitance value of the sensing capacitor formed by the first electrode 122 and the second electrode 142. Therefore, when the electronic device 10 used by the touch substrate 11 in the related art is located in water, a large number of the capacitance values ​​of the sensing capacitors may exceed the preset capacitance value range. In this case, the user cannot control the electronic device 10 by touching the touch substrate 11.

[0091] To this end, the embodiments of the present application provide a touch substrate, a touch display panel, and an electronic device, wherein the touch substrate can identify both a user's touch operation on the touch substrate and a user's pressing operation on the touch substrate. When the electronic device to which the touch substrate is applied is located in water, the user can control the electronic device by pressing the touch substrate.

[0092] The touch control substrate provided in the embodiment of the present application is explained in detail below.

[0093] The embodiment of the present application provides a touch control substrate 20. The touch control substrate 20 is applied to an electronic device so that a user can control the electronic device by touching or pressing the touch control substrate 20. The touch control substrate 20 includes a plurality of first electrodes 212, a plurality of second electrodes 222, and a plurality of third electrodes 230.

[0094] Fig.12 2 is a schematic diagram of the arrangement of a plurality of first electrodes 212 and a plurality of second electrodes 222 provided in an embodiment of the present application. Fig.12 As shown, the first electrode 212 and the second electrode 222 can be in the shape of a triangle or / and a rhombus, or in the shape of a rectangle, a regular hexagon or other polygons. The first electrode 212 and the second electrode 222 are both made of a conductive material. For example, the material of the first electrode 212 and the second electrode 222 can be one or more of silver, copper, iron, titanium, indium tin oxide, etc., which is not limited here.

[0095] The plurality of first electrodes 212 and the plurality of second electrodes 222 are not connected to each other, so that a plurality of first capacitors C1 are formed between the plurality of first electrodes 212 and the plurality of second electrodes 222. The plurality here refers to two or more integers. Here, the plurality of first electrodes 212 and the plurality of second electrodes 222 are not connected to each other means that each first electrode 212 is not connected to any second electrode 222, and each second electrode 222 is not connected to any first electrode 212. In an embodiment of the present application, the number of first electrodes 212 and the number of second electrodes 222 may be equal or unequal.

[0096] In the embodiment of the present application, the arrangement of the plurality of first electrodes 212 and the plurality of second electrodes 222 also needs to meet the following condition 1: the plurality of first capacitors C1 formed by the plurality of first electrodes 212 and the plurality of second electrodes 222 are used to detect the position of the touch operation on the touch substrate 20. That is to say, when the touch substrate 20 is applied to an electronic device, if the user controls the electronic device by a touch operation on the touch substrate 20, the touch operation can change the capacitance value of the first capacitor C1 at the position where the touch operation is located, and the capacitance value before the change is within the first capacitance value range, and the capacitance value after the change is not within the first capacitance value range. Among them, the first capacitance value range is the preset capacitance value range in the related art, which is used to determine whether the user controls the electronic device by a touch operation on the touch substrate 20. Specifically, when the capacitance value of a certain first capacitor C1 is within the first capacitance value range, the electronic device determines that the user has no touch operation on the touch substrate 20 at the position where the first capacitor C1 is located. When the capacitance value of a certain first capacitor C1 is not within the first capacitance value range, the electronic device determines that the user has a touch operation on the touch substrate 20 at the position where the first capacitor C1 is located.

[0097] Such as related technologies and Fig.12 As shown, in order to make the arrangement of the plurality of first electrodes 212 and the plurality of second electrodes 222 satisfy the above condition 1, the plurality of first electrodes 212 and the plurality of second electrodes 222 can be arranged on the same plane, and the plane is parallel to the first direction X and the second direction Y. In some other embodiments, the plurality of first electrodes 212 can be arranged on the first plane, and the plurality of second electrodes 222 can be arranged on the second plane. The first plane and the second plane are both parallel to the first direction X and the second direction Y, and the first plane and the second plane are different planes.

[0098] Fig.13 FIG. 2 is a schematic diagram of the arrangement of a plurality of third electrodes 230 provided in an embodiment of the present application. The figure shows a total of 7 third electrodes 230, namely 230a, 230b, 230c, 230d, 230e, 230f, and 230g. Fig.13As shown, each third electrode 230 may include a plurality of electrode sheets connected together and in an "X" shape. In some other embodiments, each third electrode 230 may also be in the shape of a triangle, a rhombus, a rectangle, a regular hexagon, or one or more of other polygons. Alternatively, the third electrode 230 may also be in the shape of a "square" shape, a "field" shape, a snowflake shape, or other shapes. The third electrode 230 is a conductor material. For example, the material of the third electrode 230 may be one or more of silver, copper, iron, titanium, indium tin oxide, etc., which is not limited herein.

[0099] The plurality of second electrodes 222 and the plurality of third electrodes 230 are not connected to each other. That is to say, there is no connection between each second electrode 222 and any one of the third electrodes 230, and there is no connection between each third electrode 230 and any one of the second electrodes 222. Here, the plurality of first electrodes 212 and the plurality of third electrodes 230 are also not connected to each other, so that a plurality of second capacitors C2 are formed between the plurality of first electrodes 212 and the plurality of third electrodes 230. That is to say, there is no connection between each first electrode 212 and any one of the third electrodes 230, and there is no connection between each third electrode 230 and any one of the first electrodes 212. In the embodiments of the present application, the number of the third electrodes 230 and the number of the first electrodes 212 may be equal or not equal.

[0100] In the embodiment of the present application, the arrangement of the plurality of first electrodes 212 and the plurality of third electrodes 230 must also meet the following condition 2: the plurality of second capacitors C2 formed by the plurality of first electrodes 212 and the plurality of third electrodes 230 are used and only used to detect the position of the pressing operation on the touch substrate 20. That is, when the touch substrate 20 is applied to an electronic device, if the electronic device is controlled by a pressing operation on the touch substrate 20, the pressing operation can change the capacitance value of the second capacitor C2 at the position where the pressing operation is located, and the capacitance value before the change is within the second capacitance value range, and the capacitance value after the change is not within the second capacitance value range. If the electronic device is controlled by a touch operation on the touch substrate 20, the capacitance value of the second capacitor C2 at the position where the touch operation is located before and after the touch is always within the second capacitance value range. That is, the touch operation cannot change the capacitance value of the second capacitor C2 at the position where the touch operation is located to a value that is not within the second capacitance value range. Among them, the difference between the touch operation and the press operation is that the touch operation has no pressing force on the touch substrate 20 or the pressing force is small, and the first electrode 212, the second electrode 222, and the third electrode 230 cannot be deformed microscopically; the press operation has a large pressing force on the touch substrate 20, which can cause one of the first electrode 212 and the third electrode 230 at the pressing position to be deformed microscopically. The second capacitance value range is used to determine whether the user controls the electronic device by pressing the touch substrate 20. Specifically, when the capacitance value of a certain second capacitor C2 is within the second capacitance value range, the electronic device determines that the user has no pressing operation on the touch substrate 20 at the location of the second capacitor C2. When the capacitance value of a certain second capacitor C2 is not within the second capacitance value range, the electronic device determines that the user has a pressing operation on the touch substrate 20 at the location of the second capacitor C2.

[0101] Fig.14 is a schematic diagram of a cross-sectional structure of a touch control substrate 20 provided in an embodiment of the present application along a third direction Z. Fig.14 As shown, in order to make the arrangement of the plurality of first electrodes 212, the plurality of second electrodes 222 and the plurality of third electrodes 230 satisfy the above conditions 1 and 2, the plurality of first electrodes 212 and the plurality of second electrodes 222 can be arranged on one surface of the insulating layer 202, and the plurality of third electrodes 230 can be arranged on the other surface of the insulating layer 202. In this case, Fig.15 As shown, the adjacent first electrode 212 and the second electrode 222 form a first capacitor C1, and the adjacent first electrode 212 and the third electrode 230 form a second capacitor C2. Fig.14In the embodiment shown, when the touch substrate 20 is applied to an electronic device, the plurality of first electrodes 212 and the plurality of second electrodes 222 are close to the limbs of the user operating the electronic device, and the plurality of third electrodes 230 are far away from the limbs of the user operating the electronic device. Fig.16 As shown, when the touch substrate 20 is applied to an electronic device, the plurality of first electrodes 212 and the plurality of second electrodes 222 are away from the limbs of the user operating the electronic device, and the plurality of third electrodes 230 are close to the limbs of the user operating the electronic device.

[0102] Fig.17 is a schematic diagram of the relative positions of a plurality of first electrodes 212, a plurality of second electrodes 222, and a plurality of third electrodes 230 provided in an embodiment of the present application, including the ones shown by solid lines. Fig.12 The plurality of first electrodes 212 and the plurality of second electrodes 222 shown in FIG. 1 also include the plurality of first electrodes 212 and the plurality of second electrodes 222 shown in FIG. Fig.13 The plurality of third electrodes 230 are combined Fig.14 and Fig.17 It can be seen that in some embodiments, any first electrode 212 can form a second capacitor C2 with a third electrode 230. In the embodiment of the present application, when the touch substrate 20 is applied to an electronic device, if the electronic device is in a normal use environment, the user can control the electronic device by touching the touch substrate 20; if the electronic device is in water, the user can control the electronic device by pressing the touch substrate 20. It is easy to understand that when the touch substrate 20 is applied to an electronic device, if the user wears gloves to use the electronic device, the user can also control the electronic device by pressing the touch substrate 20.

[0103] It is understandable that in the embodiment of the present application, the shapes of the first electrode 212 and the second electrode 222 are not limited to Fig.12 The shape of the third electrode 230 is not limited to Fig.13 For example, in some possible embodiments, the shape of the third electrode 230 may be as follows: Fig.18 In this case, if the shapes of the first electrode 212 and the second electrode 222 are as shown in FIG. Fig.12 As shown, the relative positions of the plurality of first electrodes 212, the plurality of second electrodes 222 and the plurality of third electrodes 230 may be as follows: Fig.19 At this time, any first electrode 212 can also form a second capacitor C2 with a third electrode 230. In some other possible embodiments, the shapes of the first electrode 212 and the second electrode 222 can be as follows: Fig. 20 The shape of the third electrode 230 may be as shown in FIG. Fig.21As shown, it is a long rectangle and is provided with a hollow first patterned structure 2302. Each first patterned structure 2302 can be as Fig.21 shown, in the form of a single "mouth" - shaped structure; or it can include multiple "mouth" - shaped structures, thus forming a "day" - shaped structure or a "field" - shaped structure. Alternatively, the first patterned structure 2302 can also be in the shape of a snowflake, and this is not limited. In this case, the relative positions of the multiple first electrodes 212, the multiple second electrodes 222, and the multiple third electrodes 230 can be as Fig. 22 shown. At this time, any one of the first electrodes 212 can form a first capacitor C1 with one of the second electrodes 222, and any one of the first electrodes 212 can form a second capacitor C2 with one of the third electrodes 230. In some other possible embodiments, the shapes of the first electrode 212 and the second electrode 222 are in the form of a rectangle as Fig. 20 shown. The shape of the third electrode 230 can be as Fig.23 shown. In this case, the relative positions of the multiple first electrodes 212, the multiple second electrodes 222, and the multiple third electrodes 230 can be as Fig.24 shown. At this time, any one of the first electrodes 212 can form a second capacitor C2 with one of the third electrodes 230.

[0104] The touch substrate 20 provided by the embodiments of the present application will be further explained below.

[0105] Fig.25 is a schematic diagram of the arrangement of multiple first electrode strips 210 and multiple second electrode strips 220 provided by the embodiments of the present application. As Fig.25 shown, the touch substrate 20 may further include multiple first connectors 214 and multiple second connectors 224. The multiple first electrodes 212 are connected through the multiple first connectors 214 to form multiple first electrode strips 210; the multiple second electrodes 222 are connected through the multiple second connectors 224 to form multiple second electrode strips 220.

[0106] Specifically, Fig.26 is a schematic diagram of the arrangement of multiple first electrode strips 210 provided by the embodiments of the present application. As Fig.26 shown, the multiple first electrodes 212 can be arranged in an array. Along the first direction X, two adjacent first electrodes 212 are connected by one first connector 214 to form multiple first electrode strips 210. In this way, each of the multiple first electrode strips 210 formed extends along the first direction X, and the multiple first electrode strips 210 are arranged along the second direction Y.

[0107] Fig. 27 is a schematic diagram of the arrangement of multiple second electrode strips 220 provided by the embodiments of the present application. As Fig. 27 As shown, the plurality of second electrodes 222 are also arranged in an array. Along the second direction Y, two adjacent second electrodes 222 are connected by a second connecting member 224, thereby forming a plurality of second electrode strips 220. In this way, each of the plurality of second electrode strips 220 formed extends along the second direction Y, and the plurality of second electrode strips 220 are arranged along the first direction X.

[0108] It is easy to understand that, as described in the related art, the process of multiple first electrodes 212 and multiple second electrodes 222 detecting the position of the touch operation is: multiple first electrode strips 210 input drive signals in sequence, and when any first electrode strip 210 inputs the drive signal, each second electrode strip 220 is used to detect the capacitance value of multiple first capacitors C1, and the position of the touch operation is determined accordingly.

[0109] Based on this, the purpose of connecting a plurality of first electrodes 212 through a plurality of first connectors 214 to form a plurality of first electrode strips 210 is to enable all first electrodes 212 in a first electrode strip 210 to input a driving signal at the same time. That is, when the touch substrate 20 is applied to an electronic device, each first electrode strip 210 can be connected to an output terminal of a processing module of the electronic device for outputting a driving signal, so that each output terminal of the processing module can output a driving signal to a first electrode strip 210 individually, that is, each output terminal of the processing module can output a driving signal to all first electrodes 212 in a first electrode strip 210 individually. It can be understood that in some other embodiments, the first electrodes 212 located in the same column may not be connected to form a first electrode strip 210, but directly connected to the same output terminal of the processing module, so that each output terminal of the processing module can output a driving signal to a first electrode 212 in a column individually. The direction of the "column" here is the first direction X. In some other embodiments, when there are enough output terminals of the processing module, each first electrode 212 can also be connected to an output terminal of the processing module.

[0110] Similarly, the purpose of forming multiple second electrode strips 220 by connecting multiple second connecting members 224 is to enable the processing module to simultaneously detect the capacitance values ​​of multiple first capacitors C1 through all the second electrodes 222 in one second electrode strip 220. That is to say, when the touch substrate 20 is applied to an electronic device, each first electrode strip 210 can be connected to a first detection end for detecting capacitance value of a processing module of the electronic device alone, so that each first detection end can detect the capacitance values ​​of multiple first capacitors C1 alone through all the second electrodes 222 in one second electrode strip 220. It can be understood that in some other embodiments, the second electrodes 222 located in the same row may not be connected to form the second electrode strip 220, but directly connected to the same first detection end of the processing module, so that each first detection end of the processing module can detect the capacitance values ​​of multiple first capacitors C1 alone through all the second electrodes 222 located in the same row. The direction of the "row" here is the second direction Y. In some other embodiments, when there are enough first detection ends of the processing module, each second electrode 222 can also be connected to a first detection end of the processing module.

[0111] like Fig.25 As shown, the arrangement of the plurality of first electrode strips 210 and the plurality of second electrode strips 220 is as follows: along the third direction Z, any first connector 214 in each first electrode strip 210 is cross-arranged with a second connector 224 in a second electrode strip 220. It is easy to understand that any first connector 214 and second connector 224 are insulated from each other. For ease of description, any pair of first connectors 214 and second connectors 224 cross-arranged along the third direction Z are referred to as corresponding first connectors 214 and second connectors 224. Then, at the positions of the corresponding first connectors 214 and second connectors 224, the cross-sectional structure of the touch substrate 20 along the third direction Z can be as follows: Fig.28 shown.

[0112] Specifically, along the third direction Z, the touch substrate 20 includes a first metal layer 201, a second metal layer 203 and an insulating layer 202. The insulating layer 202 is located between the first metal layer 201 and the second metal layer 203. Here, all the first electrodes 212 and the second electrodes 222 are located in the first metal layer 201. Among the corresponding first connectors 214 and second connectors 224, one of the first connectors 214 and the second connectors 224 is located in the first metal layer 201, and the other extends from the first metal layer 201 to the second metal layer 203, so that the first connectors 214 and the second connectors 224 are insulated. For example, Fig.28In the illustrated embodiment, the first connector 214 is located in the first metal layer 201, and the second connector 224 extends from the first metal layer 201 to the second metal layer 203. In this way, the corresponding first connector 214 and the second connector 224 form a bridge structure at the intersection position, which can avoid the first connector 214 and the second connector 224 being connected together. In addition, in the embodiment of the present application, a plurality of third electrodes 230 can also be arranged on the second metal layer 203. In this case, the arrangement of the plurality of third electrodes 230 does not add an additional metal layer, and thus can be compatible with the existing manufacturing process of the touch substrate 20 to the greatest extent.

[0113] based on Fig.25 and Fig.26 In the illustrated embodiment, the arrangement of the plurality of first electrode strips 210 is such that when each of the plurality of third electrodes 230 is in the form of an electrode strip, each third electrode 230 may extend along the second direction Y, and the plurality of third electrodes 230 are arranged along the first direction X.

[0114] Specifically, when each third electrode 230 is in the form of an electrode strip, the arrangement of the plurality of third electrodes 230 may be as follows: Fig.13 , Fig.18 or Fig.21 As shown. The arrangement of the plurality of third electrodes 230 is as follows Fig.13 As shown in the figure, the relative positions of the plurality of first electrode strips 210, the plurality of second electrode strips 220 and the plurality of third electrodes 230 can be as follows: Fig.29As shown. Among them, the arrangement of the plurality of first electrode strips 210 and the plurality of third electrodes 230 is: along the third direction Z, each first electrode strip 210 is arranged crosswise with all the third electrodes 230. In this way, when the touch substrate 20 works, and the plurality of first electrodes 212 and the plurality of third electrodes 230 are used to detect the position of the pressing operation on the touch substrate 20, the working process of the touch substrate 20 is as follows: the plurality of first electrode strips 210 input the driving signal in sequence. When any of the first electrode strips 210 inputs the driving signal, the processing module will detect the capacitance values ​​of the plurality of second capacitors C2 through each third electrode 230, and determine the position of the pressing operation accordingly. For example, when the first electrode strip 210a inputs the driving signal, if the processing module detects that the capacitance value of the second capacitor C2 is not within the second capacitance value range through the third electrode 230a, it indicates that the position of the pressing operation is at the intersection of the first electrode strip 210a and the third electrode 230a. When the first electrode strip 210d inputs the driving signal, if the processing module detects through the third electrode 230f that the capacitance value of the second capacitor C2 is not within the second capacitance value range, it indicates that the position of the pressing operation is at the intersection of the first electrode strip 210d and the third electrode 230f. In one detection cycle of the touch substrate 20, the plurality of first electrode strips 210 input the driving signal one by one.

[0115] When each third electrode 230 is not in the form of an electrode strip, that is, the shapes and arrangements of the plurality of third electrodes 230 are as follows: Fig.23 As shown, it can also be that: along the second direction Y, two adjacent third electrodes 230 are connected by a third connecting member (not shown) to form a plurality of third electrode strips. The plurality of third electrode strips are arranged along the first direction X. In this case, the connection and arrangement of the plurality of third electrodes 230 are the same as those of the plurality of second electrodes 222, and will not be described in detail.

[0116] Generally, the processing module in the electronic device may also have a plurality of second detection terminals, and the second detection terminals are used to detect the capacitance value of the second capacitor C2 through the third electrode 230. When the touch substrate 20 is applied to an electronic device, each third electrode 230 (or a third electrode strip, which will not be described in detail below) may be individually connected to a second detection terminal of the processing module of the electronic device, so that each second detection terminal can individually detect the capacitance values ​​of multiple second capacitors C2 through a third electrode 230.

[0117] The third electrode 230 is further defined below.

[0118] In some embodiments, Fig.17 , Fig.19 , Fig. 22 or Fig.24As shown, the arrangement of the third electrodes 230 can satisfy the following condition: along the third direction Z, any one of the first electrodes 212 overlaps with at least one of the third electrodes 230. Compared with the case where any one of the first electrodes 212 does not overlap with the third electrode 230 at all, the overlap of any one of the first electrodes 212 with at least one of the third electrodes 230 can increase the capacitance value of the plurality of second capacitors C2 formed by the plurality of first electrodes 212 and the plurality of third electrodes 230. This can amplify the variation of the capacitance value of the second capacitor C2 at the position where the pressing operation is located, thereby facilitating the plurality of first electrodes 212 and the plurality of third electrodes 230 to detect the position of the pressing operation on the touch substrate 20.

[0119] Still like Fig.17 , Fig.19 , Fig. 22 or Fig.24 As shown, the arrangement of the third electrode 230 can further satisfy the following conditions: along the third direction Z, any second electrode 222 overlaps with at least one third electrode 230; and the overlapping area between any first electrode 212 and the third electrode 230 can be less than or equal to the overlapping area between any second electrode 222 and the third electrode 230. As mentioned above, when the touch substrate 20 is working, a driving signal needs to be input into each of the multiple first electrodes 212. Therefore, along the third direction Z, if the overlapping area between the first electrode 212 and the third electrode 230 is too large, that is, the capacitance value of the second capacitor C2 is too large, the time for each first electrode 212 to write the driving signal will be extended. Therefore, it is designed here that along the thickness direction of the touch substrate 20, the third electrode 230 overlaps more with the second electrode 222 and less with the first electrode 212, so as to reduce the influence of the third electrode 230 on the time for the first electrode 212 to input the driving signal. It is easy to understand that in Fig.21 and Fig. 22 In the illustrated embodiment, the third electrode 230 is provided with the hollow first patterned structure 2302 of different sizes for the purpose of making the overlapping area between any one of the first electrodes 212 and the third electrode 230 smaller than the overlapping area between any one of the second electrodes 222 and the third electrode 230. It is easy to understand that since the plurality of second electrodes 222 are only used to detect the capacitance values ​​of the plurality of first capacitors C1, but not for inputting signals, the larger overlapping area between the second electrode 222 and the third electrode 230 will not affect the operation of the plurality of second electrodes 222.

[0120] In some specific embodiments, when the touch substrate 20 is applied to an electronic device, the plurality of first electrodes 212 and the plurality of second electrodes 222 are close to the limbs of the user operating the electronic device, and the plurality of third electrodes 230 are far away from the limbs of the user operating the electronic device, then when the position of the touch operation on the touch substrate 20 is detected by the plurality of first electrodes 212 and the plurality of second electrodes 222 of the touch substrate 20, an electromagnetic isolation signal may also be input into the plurality of third electrodes 230 of the touch substrate 20. The electromagnetic isolation signal may be a ground signal or other electrical signal with electromagnetic isolation function. In this case, the plurality of third electrodes 230 may play the role of electromagnetic isolation to improve the accuracy of the position of the touch operation detected by the plurality of first electrodes 212 and the plurality of second electrodes 222. In some other embodiments, when the position of the pressing operation on the touch substrate 20 is detected by the plurality of first electrodes 212 and the plurality of third electrodes 230 of the touch substrate 20, an electromagnetic isolation signal may also be input into the plurality of second electrodes 222 of the touch substrate 20.

[0121] In some specific embodiments, when the plurality of third electrodes 230 are located in the second metal layer 203, along the third direction Z, the projections of the plurality of second electrodes 222 on the second metal layer 203 may completely fall within the coverage of the third electrode 230. In other words, along the third direction Z, all the second electrodes 222 may completely overlap with the third electrode 230. The projections of the plurality of first electrodes 212 on the second metal layer 203 may also completely fall within the coverage of the third electrode 230. In other words, along the third direction Z, all the first electrodes 212 may completely overlap with the third electrode 230.

[0122] Fig.30 FIG. 2 is another schematic diagram of the arrangement of a plurality of third electrodes 230 provided in an embodiment of the present application. Fig.30 As shown, in some embodiments, the third electrode 230 may also be provided with a hollowed-out second patterned structure 2304. On the one hand, the hollowed-out second patterned structure 2304 may reduce the parasitic capacitance caused by the provision of the third electrode 230. On the other hand, the third electrode 230 may avoid the connectors (including the first connector 214 and the second connector 224) located in the second metal layer 203 through the hollowed-out second patterned structure 2304, so that the plurality of first electrodes 212 and the plurality of second electrodes 222 are not connected to the plurality of third electrodes 230. Here, along the third direction Z, the second patterned structure 2304 may neither overlap with the first electrode 212 nor overlap with the second electrode 222. Fig.30 In the embodiment shown, the hollowed-out second patterned structure 2304 is a single "mouth"-shaped structure. Fig.31 and Fig.32As shown, each second patterned structure 2304 may include a plurality of "mouth" - shaped structures, thus forming a "day" - shaped structure or a "field" - shaped structure. In still other embodiments, as Fig.33 shown, the second patterned structure 2304 may also be in the shape of a snowflake, which is not limited herein. In various embodiments of the present application, the positions of the first electrode 212, the second electrode 222, and the third electrode 230 may also be interchanged with each other.

[0123] The touch control substrate 20 provided in the embodiment of the present application has at least the following beneficial effects: (1) The touch control substrate 20 includes a plurality of first electrodes 212, a plurality of second electrodes 222, and a plurality of third electrodes 230. The plurality of first electrodes 212 and the plurality of second electrodes 222 are used to detect the position of a touch operation on the touch control substrate 20. The plurality of first electrodes 212 and the plurality of third electrodes 230 are used to detect the position of a press operation on the touch control substrate 20. In this way, when the touch control substrate 20 is applied to an electronic device, if the electronic device is in a normal use environment, the user can control the electronic device by a touch operation on the touch control substrate 20; if the electronic device is in water, the user can control the electronic device by a press operation on the touch control substrate 20. (2) The plurality of first electrodes 212 are connected through the plurality of first connectors 214 to form the plurality of first electrode strips 210, so that all the first electrodes 212 in the same column can simultaneously input the driving signal; the plurality of second electrodes 222 are connected through the plurality of second connectors 224 to form the plurality of second electrode strips 220, so that each first detection end in the processing module of the electronic device can detect the capacitance value of the plurality of first capacitors C1 through all the second electrodes 222 in one second electrode strip 220. (3) The plurality of first electrodes 212 and the plurality of second electrodes 222 are all located in the first metal layer 201. In the corresponding first connectors 214 and second connectors 224, one of the first connectors 214 and the second connectors 224 is located in the first metal layer 201, and the other extends from the first metal layer 201 to the second metal layer 203. The plurality of third electrodes 230 are located in the second metal layer 203. In this way, the provision of the third electrodes 230 does not increase the thickness and process of the touch control substrate 20. (4) Along the third direction Z, any one of the plurality of first electrodes 212 overlaps with at least one of the plurality of third electrodes 230. In this way, the capacitance values ​​of the plurality of second capacitors C2 formed by the plurality of first electrodes 212 and the plurality of third electrodes 230 can be increased, which is beneficial for the plurality of first electrodes 212 and the plurality of third electrodes 230 to detect the position of the pressing operation on the touch substrate 20. (5) Along the third direction Z, the overlapping area of ​​any one of the first electrodes 212 and the third electrode 230 is less than or equal to the overlapping area of ​​any one of the second electrodes 222 and the third electrode 230. Since the plurality of first electrodes 212 need to input a driving signal when the touch substrate 20 is working, it is designed here that the third electrode 230 overlaps more with the second electrode 222 and less with the first electrode 212 along the thickness direction of the touch substrate 20, so as to reduce the influence of the third electrode 230 on the time of inputting the driving signal to the first electrode 212. (6) When the position of a touch operation on the touch substrate 20 is detected by the plurality of first electrodes 212 and the plurality of second electrodes 222 of the touch substrate 20 , an electromagnetic isolation signal may also be input into the plurality of third electrodes 230 of the touch substrate 20 .In this case, the plurality of third electrodes 230 can play the role of electromagnetic isolation to improve the accuracy of the plurality of first electrodes 212 and the plurality of second electrodes 222 in detecting the position of the touch operation. (7) The third electrode 230 can also be provided with a hollowed-out second patterned structure 2304. The hollowed-out second patterned structure 2304 can reduce the parasitic capacitance caused by the provision of the third electrode 230. (8) The logic of the touch substrate 20 for detecting the position of the operation (including the touch operation and the pressing operation) is the same as the logic of detecting the position of the touch operation in the related art, which can save the hardware and software development costs.

[0124] The embodiment of the present application further provides a touch display panel 30. The touch display panel 30 is applied to electronic equipment. Fig.34 is a schematic diagram of a cross-sectional structure of a touch display panel 30 along a third direction Z provided in an embodiment of the present application, such as Fig.34 As shown, the touch display panel 30 includes a display substrate 32 and a touch substrate 20 as in any one of the above embodiments.

[0125] The display substrate 32 is used to output a display image to the user. The display substrate 32 can be an organic light emitting diode (OLED) display or a liquid crystal display (LCD). The display substrate 32 has a relative light-emitting side and a non-light-emitting side. Among them, the light-emitting side of the display substrate 32 refers to the side of the display substrate 32 used to output the display image to the user. Here, the display substrate 32 is stacked with the touch substrate 20, and the touch substrate 20 is located on the light-emitting side of the display substrate 32.

[0126] In some embodiments, Fig.35 As shown, the touch control substrate 20 includes a first metal layer 201, a second metal layer 203 and an insulating layer 202. The second metal layer 203 is located between the display substrate 32 and the insulating layer 202, and the insulating layer 202 is located between the second metal layer 203 and the first metal layer 201. A plurality of first electrodes 212 and a plurality of second electrodes 222 are both located in the first metal layer 201. A plurality of third electrodes 230 are located in the second metal layer 203. In other words, the plurality of first electrodes 212 and the plurality of second electrodes 222 are close to the limbs of the user operating the electronic device, and the plurality of third electrodes 230 are far away from the limbs of the user operating the electronic device.

[0127] In the related art, the second metal layer 203 only includes a plurality of second connectors 224. In this case, the area of ​​the metal in the second metal layer 203 is small, and the parasitic capacitance generated between the second metal layer 203 and the display substrate 32 is also small. Therefore, the parasitic capacitance in the touch display panel 30 is mainly formed by the first metal layer 201 and the display substrate 32. Since the insulating layer 202 and the second metal layer 203 are separated between the first metal layer 201 and the display substrate 32, the total thickness of the insulating layer 202 and the second metal layer 203 is relatively large, about 13μm (micrometer). Therefore, the parasitic capacitance in the touch display panel 30 in the related art is relatively small. In the embodiment of the present application, the second metal layer 203 not only includes a plurality of second connectors 224, but also includes a third electrode 230, so the area of ​​the metal in the second metal layer 203 is relatively large. At the same time, since the thickness of the insulating layer 202 is relatively small, about 0.3μm, the parasitic capacitance between the second metal layer 203 and the first metal layer 201 in the embodiment of the present application may be relatively large. Based on this, when the plurality of first electrodes 212 and the plurality of second electrodes 222 detect the position of the touch operation on the touch substrate 20, the plurality of third electrodes 230 may input an electromagnetic isolation signal. In this way, when the plurality of first electrodes 212 and the plurality of second electrodes 222 detect the position of the touch operation on the touch substrate 20, the plurality of third electrodes 230 may play a role in isolating the display noise of the display substrate 32. In this way, the influence of the display noise of the display substrate 32 on the position of the touch operation detected by the plurality of first electrodes 212 and the plurality of second electrodes 222 may be reduced, and the influence of the driving signal in the plurality of first electrodes 212 on the display substrate 32 may be reduced, thereby improving the accuracy of detecting the position of the touch operation and improving the display effect of the display substrate 32. It is easy to understand that in some other embodiments, when the plurality of first electrodes 212 and the plurality of third electrodes 230 detect the position of the pressing operation on the touch substrate 20, the plurality of second electrodes 222 may also input an electromagnetic isolation signal.

[0128] Furthermore, if Fig.35 As shown, the touch display panel 30 may further include a substrate layer 34 and a protective layer 36. The substrate layer 34 is located on the side of the display substrate 32 away from the touch substrate 20, that is, on the non-light-emitting side of the display substrate 32. In other words, the display substrate 32 is located between the substrate layer 34 and the touch substrate 20. Generally, the substrate layer 34 may be a glass substrate or a flexible polyimide (PI) substrate. The protective layer 36 is located on the side of the touch substrate 20 away from the display substrate 32. In other words, the touch substrate 20 is located between the display substrate 32 and the protective layer 36. Generally, the protective layer 36 may be a transparent glass cover.

[0129] The embodiment of the present application also provides an electronic device, including a processing module and a touch substrate 20 or a touch display panel 30 as in any of the above embodiments. The processing module has multiple output terminals, multiple first detection terminals and multiple second detection terminals. The multiple output terminals of the processing module are connected to the first electrode 212 to output a driving signal to the multiple first electrodes 212. Generally, in the touch substrate 20, multiple first electrodes 212 (such as the first electrode strip 210) located in the same column can be connected to an output terminal of the processing module. The multiple first detection terminals of the processing module are connected to the second electrode 222 to detect the capacitance values ​​of the multiple first capacitors C1 through the multiple second electrodes 222. Generally, in the touch substrate 20, multiple second electrodes 222 (such as the second electrode strip 220) located in the same row can be connected to a first detection terminal of the processing module. The multiple second detection terminals of the processing module are connected to the third electrode 230 to detect the capacitance values ​​of the multiple second capacitors C2 through the multiple third electrodes 230. Generally, in the touch control substrate 20 , one or more third electrodes 230 located in the same row may be connected to a second detection terminal of the processing module.

[0130] When the processing module is working, it can be used to execute the following steps S110 to S120.

[0131] S110, when the electronic device is in the touch mode, the processing module transmits a driving signal to the plurality of first electrodes 212, and detects the capacitance values ​​of the plurality of first capacitors C1.

[0132] The electronic device has a touch mode and a press mode. Among them, the touch mode means that when the electronic device is in the touch mode, the position of the touch operation on the touch substrate 20 is detected through multiple first electrodes 212 and multiple second electrodes 222. Based on this, in this mode, the processing module needs to transmit a drive signal to the multiple first electrodes 212 and detect the capacitance values ​​of the multiple first capacitors C1. As mentioned above, when the processing module transmits a drive signal to the multiple first electrodes 212, it can be: the processing module outputs a drive signal to the multiple first electrode strips 210 in sequence. When the processing module detects the capacitance values ​​of the multiple first capacitors C1, it can be: when the processing module outputs a drive signal to each first electrode strip 210, it detects the capacitance values ​​of the multiple first capacitors C1 through each second electrode strip 220.

[0133] S120 : The processing module determines a position of a touch operation on the touch control substrate 20 according to capacitance values ​​of the plurality of first capacitors C1 .

[0134] A first capacitance value range is set in the processing module. When the processing module outputs a driving signal to a first electrode strip 210 , if the capacitance value detected by a second electrode strip 220 is not within the first capacitance value range, it indicates that the touch operation is located at the intersection of the first electrode strip 210 and the second electrode strip 220 .

[0135] When the processing module is working, it can also be used to execute the following steps 210 to S220.

[0136] S210, when the electronic device is in the voltage control mode, the processing module transmits a driving signal to the plurality of first electrodes 212, and detects the capacitance values ​​of the plurality of second capacitors C2.

[0137] The pressing mode means that when the electronic device is in the pressing mode, the position of the pressing operation on the touch substrate 20 is detected through multiple first electrodes 212 and multiple third electrodes 230. Based on this, in this mode, the processing module needs to transmit a driving signal to the multiple first electrodes 212 and detect the capacitance values ​​of the multiple second capacitors C2. As mentioned above, when the processing module transmits a driving signal to the multiple first electrodes 212, it can be: the processing module outputs a driving signal to the multiple first electrode strips 210 in sequence. When the processing module detects the capacitance values ​​of the multiple second capacitors C2, it can be: when the processing module outputs a driving signal to each first electrode strip 210, it detects the capacitance values ​​of the multiple second capacitors C2 through each third electrode 230.

[0138] S220 , the processing module determines the position of the pressing operation on the touch substrate 20 according to the capacitance values ​​of the plurality of second capacitors C2 .

[0139] The processing module is provided with a second capacitance value range. When the processing module outputs a driving signal to a first electrode strip 210 , if the capacitance value detected by a third electrode 230 is not within the second capacitance value range, it indicates that the pressing operation is located at the intersection of the first electrode strip 210 and the third electrode 230 .

[0140] It is easy to understand that in the above embodiments, in the detailed description of steps S110 to S120 and steps S210 to S220, the description is made by taking the example that the multiple first electrodes 212 are connected through the multiple first connectors 214 to form the multiple first electrode strips 210, the multiple second electrodes 222 are connected through the multiple second connectors 224 to form the multiple second electrode strips 220, and the multiple third electrodes 230 are in the form of electrode strips. In some other embodiments, the multiple first electrodes 212 may not be connected through the multiple first connectors 214 to form the multiple first electrode strips 210, the multiple second electrodes 222 may not be connected through the multiple second connectors 224 to form the multiple second electrode strips 220, and the multiple third electrodes 230 may not be in the form of electrode strips, which will not be described in detail.

[0141] In some embodiments, when executing steps S110 and S120 , the processing module may also be used to execute the following step S130 : the processing module transmits an electromagnetic isolation signal to the plurality of third electrodes 230 .

[0142] The electromagnetic isolation signal can be a ground signal or other electrical signal with electromagnetic isolation. That is, when the processing module detects the position of the touch operation on the touch substrate 20 through the multiple first electrodes 212 and the multiple second electrodes 222, the processing module can also connect the multiple third electrodes 230 to the ground line.

[0143] In some embodiments, when executing steps S210 and S220 , the processing module may also be used to execute the following step S230 : the processing module transmits an electromagnetic isolation signal to the plurality of second electrodes 222 .

[0144] The switching process of the electronic device between the touch control mode and the voltage control mode is described below from two possible implementations.

[0145] In a first possible implementation manner, a user manually controls the electronic device to switch between the touch control mode and the pressure control mode.

[0146] Fig.36 is a display interface diagram of an electronic device provided in an embodiment of the present application. For example, Fig.36 As shown, the user clicks the setting icon on the desktop interface of the electronic device to enable the electronic device to enter the setting interface. In the setting interface, there are setting options of different functions, such as WLAN options, Bluetooth options, display and brightness options, control setting options, etc. When the user clicks the control setting option control 41, the electronic device can jump to the control setting interface. In the control setting interface, the electronic device can display the pressure control mode option control 42. The user can choose whether to turn on the pressure control mode by clicking the pressure control mode option control 42. It is easy to understand that the electronic device is always in touch mode or pressure control mode, so when the user does not turn on the pressure control mode option control 42, the electronic device is in touch mode; when the user turns on the pressure control mode option control 42, the electronic device is in pressure control mode. Generally, the user can turn on the pressure control mode option control 42 when it is necessary to operate the electronic device in water. Alternatively, when the user wears gloves to operate the electronic device, the pressure control mode option control 42 can also be turned on before wearing the gloves. In this way, after wearing gloves, the electronic device can be controlled by pressing the touch substrate 20.

[0147] In an embodiment of the present application, the voltage-control mode option control 42 includes an off state and an on state. When the electronic device is in the touch mode, if the user chooses to turn on the voltage-control mode by clicking the voltage-control mode option control 42, the processing module of the electronic device receives a first control instruction. The first control instruction is used to instruct the electronic device to enter the voltage-control mode. In this case, the processing module can determine that the electronic device switches from the touch mode to the voltage-control mode. When the electronic device is in the voltage-control mode, if the user chooses to turn off the voltage-control mode by clicking the voltage-control mode option control 42, the processing module of the electronic device receives a second control instruction. The second control instruction is used to instruct the electronic device to exit the voltage-control mode. In this case, the processing module can determine that the electronic device switches from the voltage-control mode to the touch mode. Fig.36 In the illustrated embodiment, the voltage control mode option control 42 is in the off state.

[0148] It is easy to understand that in some other embodiments, the user can also transmit the first control instruction and the second control instruction to the processing module through the physical button of the electronic device. For example, in some possible embodiments, if the electronic device is in touch mode, and the processing module detects that the power-off button of the electronic device meets the trigger condition, the processing module determines that the first control instruction is received, and the processing module can determine that the electronic device switches from the touch mode to the pressure control mode. If the electronic device is in pressure control mode, and the processing module detects that the power-off button of the electronic device meets the trigger condition, the processing module determines that the second control instruction is received, and the processing module can determine that the electronic device switches from the pressure control mode to the touch mode. Among them, the trigger condition can be, for example, that the power-off button of the electronic device is pressed multiple times in a short time. Here, the short time can be, for example, 3 seconds, 5 seconds, etc., and multiple times can be, for example, 3 times, 5 times, etc. It can be understood that the trigger condition for the processing module to determine that the first control instruction and the second control instruction are received can be set by those skilled in the art according to experience and needs.

[0149] In a second possible implementation, the electronic device may automatically switch from the touch control mode to the pressure control mode when detecting that it is in water.

[0150] Specifically, as mentioned above, when the electronic device is in touch mode, when water and the user's limbs are close to the touch substrate 20, the electronic device will detect the touch operation on the touch substrate 20. Generally, when the user performs a touch operation on the touch substrate 20, at the same time, the number of positions of the touch operation on the touch substrate 20 detected by the processing module through the multiple first electrodes 212 and the multiple second electrodes 222 will be less than the preset number; and when the electronic device enters the water, the water completely covers the touch substrate 20 of the electronic device, and the number of positions of the touch operation on the touch substrate 20 detected by the processing module through the multiple first electrodes 212 and the multiple second electrodes 222 will be greater than or equal to the preset number. Based on this, the processing module can automatically switch from the touch mode to the pressure control mode when the electronic device is in water by executing the following step S300.

[0151] S300 , when the electronic device is in the touch control mode, if the processing module detects that the number of positions of the touch operation on the touch control substrate 20 reaches a preset number, the electronic device is switched from the touch control mode to the voltage control mode.

[0152] Easy to understand, still Fig.36 As shown, in the control setting interface, the electronic device can also display a smart control option control 43. The user can click the smart control option control 43 to choose whether to automatically enter the pressure control mode when the electronic device enters the water. In the embodiment of the present application, the smart control option control 43 includes an off state and an on state. When the smart control option control 43 is in the off state, the electronic device will not execute the above step S300. When the smart control option control 43 is in the on state, the electronic device can execute the above step S300. Fig.36 In the illustrated embodiment, the smart control option control 43 is in an open state.

[0153] The electronic device provided in the embodiment of the present application, based on the touch substrate 20 in any of the above embodiments, can realize the following application scenarios: (1) the electronic device can be normally controlled under running water, thereby improving the waterproof and anti-accidental touch capabilities of the electronic device. (2) the electronic device can be clicked and slid in water (such as swimming or diving), thereby realizing underwater photography and video recording.

[0154] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A touch substrate, characterized in that: The touch control substrate includes a plurality of first electrodes, a plurality of second electrodes and a plurality of third electrodes; The plurality of first electrodes and the plurality of second electrodes are not connected to each other, and a plurality of first capacitors are formed between the plurality of first electrodes and the plurality of second electrodes, and the plurality of first electrodes and the plurality of second electrodes are used to detect a position of a touch operation on the touch control substrate; The multiple second electrodes are not connected to the multiple third electrodes; the multiple first electrodes are not connected to the multiple third electrodes, and multiple second capacitors are formed between the multiple first electrodes and the multiple third electrodes, and the multiple first electrodes and the multiple third electrodes are used to detect the position of the pressing operation on the touch substrate.

2. The touch substrate according to claim 1, wherein: The touch control substrate further includes: a plurality of first connecting members and a plurality of second connecting members; The plurality of first electrodes are arranged in an array, and the plurality of first electrodes are connected through the plurality of first connecting members to form a plurality of first electrode strips; each of the plurality of first electrode strips extends along a first direction, and the plurality of first electrode strips are arranged along a second direction, and the first direction is perpendicular to the second direction; The plurality of second electrodes are arranged in an array, and the plurality of second electrodes are connected through the plurality of second connecting members to form a plurality of second electrode strips; each of the plurality of second electrode strips extends along the second direction, and the plurality of second electrode strips are arranged along the first direction.

3. The touch substrate according to claim 2, wherein: The plurality of first connecting members and the plurality of second connecting members include corresponding first connecting members and second connecting members, and along a thickness direction of the touch control substrate, the corresponding first connecting members and second connecting members are cross-arranged.

4. The touch control substrate according to claim 3, wherein: The touch control substrate comprises a first metal layer, a second metal layer and an insulating layer; the insulating layer is located between the first metal layer and the second metal layer; The plurality of first electrodes and the plurality of second electrodes are both located in the first metal layer; Among the corresponding first connector and second connector, one of the first connector and the second connector is located in the first metal layer, and the other extends from the first metal layer to the second metal layer, so that the first connector and the second connector are insulated from each other; The plurality of third electrodes are located in the second metal layer.

5. The touch control substrate according to any one of claims 1 to 4, characterized in that: Each of the plurality of first electrodes and each of the plurality of second electrodes has a rhombus shape.

6. The touch control substrate according to any one of claims 1 to 5, characterized in that: Each of the plurality of third electrodes extends along the second direction, and the plurality of third electrodes are arranged along the first direction.

7. The touch control substrate according to any one of claims 1 to 6, characterized in that: Along the thickness direction of the touch control substrate, any one of the plurality of first electrodes overlaps with at least one of the plurality of third electrodes.

8. The touch substrate according to claim 7, wherein: Along the thickness direction of the touch substrate, any second electrode of the plurality of second electrodes overlaps with at least one third electrode of the plurality of third electrodes, and an overlapping area between any first electrode and the third electrode is less than or equal to an overlapping area between any second electrode and the third electrode.

9. The touch substrate according to claim 8, wherein: The plurality of third electrodes are located in the second metal layer; Along the thickness direction of the touch substrate, projections of the plurality of second electrodes on the second metal layer completely fall within the coverage area of ​​the third electrode.

10. The touch control substrate according to any one of claims 1 to 9, characterized in that: Any one of the plurality of third electrodes is provided with a hollow patterned structure; Along a thickness direction of the touch substrate, the patterned structure does not overlap with the first electrode, and the patterned structure does not overlap with the second electrode.

11. A touch display panel, characterized in that: It comprises a display substrate and a touch control substrate as claimed in any one of claims 1 to 10; The display substrate and the touch substrate are stacked, and the touch substrate is located on the light emitting side of the display substrate.

12. The touch display panel according to claim 11, wherein: The touch control substrate comprises a first metal layer, a second metal layer and an insulating layer, wherein the second metal layer is located between the display substrate and the insulating layer, and the insulating layer is located between the second metal layer and the first metal layer; The plurality of first electrodes and the plurality of second electrodes are both located in the first metal layer; the plurality of third electrodes are located in the second metal layer; When the plurality of first electrodes and the plurality of second electrodes detect the position of a touch operation on the touch control substrate, the plurality of third electrodes are used to input an electromagnetic isolation signal.

13. An electronic device, characterized in that: comprising a processing module and a touch display panel as claimed in claim 11 or 12; The processing module is connected to the plurality of first electrodes, the plurality of second electrodes, and the plurality of third electrodes; The processing module is used for: When the electronic device is in a touch mode, a driving signal is transmitted to the plurality of first electrodes, and capacitance values ​​of the plurality of first capacitors are detected; a position of a touch operation on the touch substrate is determined according to the capacitance values ​​of the plurality of first capacitors; When the electronic device is in a voltage control mode, transmitting a driving signal to the plurality of first electrodes and detecting capacitance values ​​of the plurality of second capacitors; The position of the pressing operation on the touch substrate is determined according to the capacitance values ​​of the plurality of second capacitors.

14. The electronic device according to claim 13, characterized in that: The processing module is further configured to: transmit electromagnetic isolation signals to the plurality of third electrodes when the electronic device is in the touch control mode; and transmit electromagnetic isolation signals to the plurality of second electrodes when the electronic device is in the voltage control mode.

15. The electronic device according to claim 13 or 14, characterized in that: The processing module is also used for: In case of receiving the first control instruction, determining that the electronic device is switched from the touch control mode to the voltage control mode; When a second control instruction is received, it is determined that the electronic device switches from the voltage control mode to the touch control mode.

16. The electronic device according to any one of claims 13 to 15, characterized in that: The processing module is also used for: When the electronic device is in the touch control mode, if it is detected that the number of positions of the touch operation on the touch control substrate reaches a preset number, the electronic device is switched from the touch control mode to the pressure control mode.

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