Touch substrate, control method thereof and display module

Abstract

The invention provides a touch substrate and a control method thereof, and a display module, the touch substrate comprises: a substrate having a display area and a first non-display area located on one side of the display area; the driving module is arranged in the first non-display area; the plurality of first signal lines are arranged in the display area and are electrically connected with the driving module; the driving module comprises a display driving mode and an electromagnetic touch control mode, in the display driving mode, the first signal lines are used for transmitting target signals, and in the electromagnetic touch control mode, the multiple first signal lines form an induction coil. The function of a traditional electromagnetic induction film layer is achieved through the first signal line of the touch substrate, the electromagnetic induction film layer is prevented from being newly added, the thickness and cost of a product can be reduced, meanwhile, the electromagnetic induction film layer is prevented from influencing the display light transmittance of the product, the power consumption of the product is reduced, and the electromagnetic induction film layer is prevented from being shielded or interfered by a display electrode.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a touch substrate and a control method thereof, and a display module. Background Art

[0002] Organic Light Emitting Display (OLED) and flat-panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] However, the performance of current display devices needs to be improved. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a touch substrate that can avoid the use of an electromagnetic induction film, reduce product thickness and cost, and improve product display transmittance.

[0005] Based on the above purpose, the present application provides a touch control substrate, which includes:

[0006] A substrate, the substrate having a display area and a first non-display area located on one side of the display area;

[0007] A driving module, wherein the driving module is disposed in the first non-display area;

[0008] A plurality of first signal lines, wherein the plurality of first signal lines are disposed in the display area and are electrically connected to the driving module;

[0009] The driving module includes a display driving mode and an electromagnetic touch mode. In the display driving mode, the first signal line is used to transmit a target signal. In the electromagnetic touch mode, a plurality of the first signal lines form an induction coil, and each of the induction coils includes a plurality of the first signal lines connected to each other.

[0010] In one embodiment, the substrate further has a second non-display area, and the second non-display area is located on a side of the display area away from the first non-display area;

[0011] The touch control substrate further includes:

[0012] a first control module, wherein the first control module is disposed in the second non-display area;

[0013] A plurality of first switch modules, wherein the plurality of first switch modules are arranged in the second non-display area, and the plurality of first signal lines in the induction coil are connected to the first control module through the first switch modules;

[0014] In the display driving mode, the first control module controls the first switch module to be disconnected, and in the electromagnetic touch mode, the first control module controls the first switch module to be connected, and the first signal line connected to the first switch module forms an induction coil.

[0015] In one embodiment, the driving module includes a display driving module and an electromagnetic touch module. When the display driving module is working, the touch substrate is in a display driving mode. When the electromagnetic touch module is working, the touch substrate is in an electromagnetic touch mode.

[0016] The display driving module is connected to the first signal line.

[0017] In one embodiment, the touch substrate further includes:

[0018] A plurality of second switch modules, wherein the plurality of second switch modules are arranged in the first non-display area, and a portion of the first signal lines in the induction coil is connected to the electromagnetic touch control module through the second switch modules;

[0019] A plurality of third switch modules, wherein the plurality of the third switch modules are arranged in the first non-display area, and each of the first signal lines is connected to the display driving module via one of the third switch modules;

[0020] In the display driving mode, the electromagnetic touch control module controls the second switch module to be disconnected, the display driving module controls the third switch module to be turned on, and the first signal line transmits the target signal of the display driving module;

[0021] In the electromagnetic touch mode, the display driving module controls the third switch module to be disconnected, and the electromagnetic touch module controls the second switch module to be turned on. The first signal line connected to the second switch module forms an induction coil. In each induction coil, the first switch module and the second switch module connect multiple first signal lines end to end in sequence to form a multi-turn coil.

[0022] Preferably, the number of the first switch modules connected to each induction coil is one more than the number of the second switch modules.

[0023] Preferably, the second switch module is integrated into the electromagnetic touch control module.

[0024] In one embodiment, when the touch substrate is scanned line by line, the driving module is in the display driving mode;

[0025] When the touch substrate is in scanning interval, the driving module is in the electromagnetic touch mode;

[0026] Preferably, the first signal line comprises a data line, and in the display driving mode, the data line is used to transmit an image voltage signal.

[0027] In one embodiment, the substrate further has a third non-display area and a fourth non-display area, the display area is located between the third non-display area and the fourth non-display area, the first non-display area and the display area are arranged along a first direction, the third non-display area, the display area and the fourth non-display area are arranged along a second direction, and the first direction intersects with the second direction;

[0028] The touch control substrate further includes:

[0029] a second control module and a third control module, wherein the second control module and the third control module are respectively arranged in two non-display areas adjacent to the non-display area where the driving module is located;

[0030] When the touch substrate is scanned line by line, the second control module and the third control module are in a line by line output state;

[0031] When the touch substrate is in a scanning interval, the second control module and the third control module are in a dormant state;

[0032] Preferably, the first direction and the second direction are perpendicular.

[0033] In one embodiment, the first signal line extends along a first direction; in the electromagnetic touch mode, the first signal line forms a plurality of induction coils, and the plurality of induction coils are arranged at intervals along a second direction; wherein the first direction intersects the second direction;

[0034] Preferably, the first direction and the second direction are perpendicular.

[0035] Preferably, a plurality of the induction coils can be connected to form one induction coil.

[0036] In one embodiment, in the electromagnetic touch mode, the plurality of induction coils are in a sequential output state along the second direction.

[0037] Based on the same inventive concept, the present application also discloses a control method for a touch substrate, the touch substrate comprising a substrate, a driving module and a plurality of first signal lines, the substrate having a display area and a first non-display area located on one side of the display area, the driving module being arranged in the first non-display area, the plurality of first signal lines being arranged in the display area and being electrically connected to the driving module, the driving module comprising a display driving mode and an electromagnetic touch mode, the control method comprising:

[0038] In the display driving mode, controlling the first signal line to transmit a target signal;

[0039] In the electromagnetic touch mode, a plurality of the first signal lines are controlled to form an induction coil, and each of the induction coils includes a plurality of the first signal lines connected to each other.

[0040] Based on the same inventive concept, the present application also discloses a display module, which includes the above-mentioned touch substrate.

[0041] Based on the same inventive concept, the present application also discloses a display device, which includes the above-mentioned display module.

[0042] Compared with the prior art, the touch substrate provided by the present application has a driving module including a display driving mode and an electromagnetic touch mode. In the display driving mode, the first signal line is used to transmit the target signal. In the electromagnetic touch mode, the first signal line forms an induction coil, and each induction coil includes a plurality of first signal lines connected to each other. That is, the first signal line of the touch substrate itself is used to realize the function of the traditional electromagnetic induction film layer, avoiding the addition of an electromagnetic induction film layer, which can reduce the thickness and cost of the product. At the same time, the electromagnetic induction film layer is prevented from affecting the display transmittance of the product, which is beneficial to reducing the power consumption of the product and preventing the electromagnetic induction film layer from being shielded or interfered by the display electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 is a schematic diagram of a related touch control substrate;

[0045] Figure 2 A schematic diagram of the structure of a touch control substrate provided in one embodiment of the present application;

[0046] Figure 3 A schematic structural diagram of a touch control substrate provided in another embodiment of the present application;

[0047] Figure 4 A schematic structural diagram of a touch control substrate provided in another embodiment of the present application;

[0048] Figure 5 A timing diagram of a touch substrate provided by another embodiment of the present application in an electromagnetic touch mode;

[0049] Figure 6 A schematic structural diagram of a touch control substrate provided in another embodiment of the present application;

[0050] Figure 7 A schematic structural diagram of a touch control substrate provided in another embodiment of the present application;

[0051] Figure 8 A schematic structural diagram of a touch control substrate provided in another embodiment of the present application;

[0052] Fig. 9 This is a schematic structural diagram of a touch control substrate provided in another embodiment of the present application.

[0053] Marking Description:

[0054] 100. Touch control substrate;

[0055] 1. substrate; 11. display area; 12. first non-display area; 13. second non-display area; 14. third non-display area; 15. fourth non-display area;

[0056] 2. Drive module; 21. Circuit board; 22. Display drive module; 23. Electromagnetic touch module;

[0057] 3. first signal line; 31. induction coil;

[0058] 4. A first control module;

[0059] 5. The first switch module;

[0060] 6. The second switch module;

[0061] 7. Second control module;

[0062] 8. The third control module;

[0063] 9. The third switch module. DETAILED DESCRIPTION

[0064] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0065] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0066] With the rapid development of display technology, there are already many AMOLED (Active-matrixorganic light-emitting diode) display products on the market, most of which are related to the fields of mobile phones, PADs (portable android devices) and laptops.

[0067] At present, if display products want to support electromagnetic stylus, it is necessary to add an electromagnetic induction film layer on the product. The electromagnetic induction film layer is specifically used to sense changes in the electromagnetic field and is used to cooperate with the electromagnetic stylus to realize the electromagnetic touch function. Among them, the electromagnetic induction film layer can be attached to the surface or back of the screen, resulting in an increase in the overall thickness. At the same time, if the electromagnetic induction film layer is attached to the surface of the screen, it will also affect the display transmittance and increase power consumption. The electromagnetic induction film layer can also be deposited outside the packaging layer in the form of a metal grid, which requires a new mask, resulting in a more complicated process and increased costs.

[0068] In addition, refer to Figure 1 As shown, corresponding to adding an electromagnetic induction film layer on the substrate 1, a new driving module 2 needs to be added, and the driving module 2 is used to realize the control of electromagnetic induction, and an additional circuit board 21 needs to be designed for the driving module 2. The driving module 2 used to realize display driving is usually bonded through the lower frame of the substrate 1, and the driving module 2 used to realize electromagnetic induction is usually bonded through the side frame, which increases the width of the side frame and is not conducive to realizing a narrow frame.

[0069] Based on this, the present application provides a panel solution, as detailed in the following embodiments.

[0070] Reference Figure 2As shown, an embodiment of the present application discloses a touch control substrate 100, including a substrate 1, a driving module 2 and a plurality of first signal lines 3, wherein the substrate 1 has a display area 11 and a first non-display area 12 located on one side of the display area 11, the driving module 2 is arranged in the first non-display area 12, and the plurality of first signal lines 3 are arranged in the display area 11 and are electrically connected to the driving module 2.

[0071] The driving module 2 includes a display driving mode and an electromagnetic touch mode. In the display driving mode, the first signal line 3 is used to transmit the target signal. In the electromagnetic touch mode, multiple first signal lines 3 form an induction coil 31, and each induction coil 31 includes multiple first signal lines 3 connected to each other.

[0072] The touch control substrate 100 provided in this embodiment has a driving module 2 including a display driving mode and an electromagnetic touch control mode. In the display driving mode, the first signal line 3 is used to transmit the target signal. In the electromagnetic touch control mode, the first signal line 3 forms an induction coil 31, and each induction coil 31 includes a plurality of first signal lines 3 connected to each other. That is, the first signal lines 3 of the touch control substrate 100 itself are used to realize the function of the traditional electromagnetic induction film layer, avoiding the addition of an electromagnetic induction film layer, which can reduce the thickness and cost of the product. At the same time, the electromagnetic induction film layer is prevented from affecting the display transmittance of the product, which is beneficial to reducing the power consumption of the product and preventing the electromagnetic induction film layer from being shielded or interfered by the display electrode.

[0073] Reference Figure 3 As shown, in one embodiment, the substrate 1 further has a second non-display area 13, and the second non-display area 13 is located on a side of the display area 11 away from the first non-display area 12; the touch substrate 100 also includes a first control module 4 and a plurality of first switch modules 5, the first control module 4 is arranged in the second non-display area 13, and the plurality of first switch modules 5 are arranged in the second non-display area 13, and the plurality of first signal lines 3 in the induction coil 31 are connected to the first control module 4 through the first switch module 5.

[0074] In the display driving mode, the first control module 4 controls the first switch module 5 to be turned off. In the electromagnetic touch mode, the first control module 4 controls the first switch module 5 to be turned on. The first signal line 3 connected to the first switch module 5 forms an induction coil 31 .

[0075] Specifically, in the display driving mode, the first control module 4 controls the first switch module 5 to be disconnected, so that the first signal lines 3 connected to the first switch module 5 are disconnected, and the target signals are transmitted independently between the first signal lines 3. In the electromagnetic touch mode, that is, the interval of display driving, the first control module 4 controls the first switch module 5 to be turned on, and the first signal lines 3 connected to the first switch module 5 are turned on through the first switch module 5, and the ring structure composed of the first signal lines 3 connected to the first switch module 5 can form an induction coil 31.

[0076] Reference Figure 4 As shown, in one embodiment, the driving module 2 includes a display driving module 22 and an electromagnetic touch module 23. When the display driving module 22 is working, the touch substrate 100 is in a display driving mode, and when the electromagnetic touch module 23 is working, the touch substrate 100 is in an electromagnetic touch mode; the display driving module 22 is connected to the first signal line 3. By dividing the driving module 2 into the display driving module 22 and the electromagnetic touch module 23, the display driving function and the electromagnetic touch function are realized respectively.

[0077] Please continue to refer to Figure 4 As shown, in one embodiment, the touch control substrate 100 further includes a plurality of second switch modules 6 and a plurality of third switch modules 9. The plurality of second switch modules 6 are disposed in the first non-display area 12, and some of the first signal lines 3 in the induction coil 31 are connected to the electromagnetic touch control module 23 through the second switch modules 6. The plurality of third switch modules 9 are disposed in the first non-display area 12, and each first signal line 3 is connected to the display driving module 22 through a third switch module 9.

[0078] In the display driving mode, the electromagnetic touch module 23 controls the second switch module 6 to be turned off, the display driving module 22 controls the third switch module 9 to be turned on, and the first signal line 3 transmits the target signal of the display driving module 22 .

[0079] In the electromagnetic touch mode, the display driving module 22 controls the third switch module 9 to be disconnected, and the electromagnetic touch module 23 controls the second switch module 6 to be turned on. The first signal line 3 connected to the second switch module 6 forms an induction coil 31. In each induction coil 31, the first switch module 5 and the second switch module 6 connect multiple first signal lines 3 end to end in sequence to form a multi-turn coil.

[0080] Since in the display driving mode, the first signal lines 3 are all independently connected to the display driving module 22, and only relying on the first switch module 5, only the ends of different first signal lines 3 away from the display driving module 22 can be connected, and the ends of different first signal lines 3 close to the display driving module 22 cannot be connected, that is, the end of the coil close to the display driving module 22 cannot form a closed loop, so the formed coil has only one turn, and the magnetic flux of one turn of the coil may not meet the requirements of electromagnetic induction. By setting the second switch module 6 at the end of the first signal line 3 close to the electromagnetic touch module 23, the ends of different first signal lines 3 close to the electromagnetic touch module 23 can be connected in the electromagnetic touch mode, thereby forming a multi-turn coil, thereby increasing the magnetic flux of the coil to meet the requirements of electromagnetic induction.

[0081] Preferably, the number of the first switch modules 5 in each induction coil 31 is one more than the number of the second switch modules 6. Specifically, the input end and the output end of each induction coil 31 are connected to the electromagnetic touch module 23, so the switch module required at the end of each induction coil 31 close to the electromagnetic touch module 23 is less than the switch module required at the end far from the electromagnetic touch module 23. Optionally, the number of the first switch modules 5 in each induction coil 31 is 3, and the number of the second switch modules 6 is 2; the number of the first switch modules 5 is 6, and the number of the second switch modules 6 is 5; the number of the first switch modules 5 is 9, and the number of the second switch modules 6 is 8, etc. There is no specific limitation.

[0082] Preferably, the second switch module 6 is integrated into the electromagnetic touch module 23 and can be bonded to the back of the product along with the driving module 2 to reduce the bottom frame of the product.

[0083] Please continue to refer to Figure 4 As shown, in one embodiment, the first signal line 3 extends along the first direction; in the electromagnetic touch mode, the first signal line 3 forms a plurality of induction coils 31, and the plurality of induction coils 31 are arranged at intervals along the second direction; wherein the first direction intersects the second direction. Specifically, in the electromagnetic touch mode, by forming a plurality of induction coils 31 arranged at intervals along the second direction (such as the Y direction in the figure), different areas on the display area 11 are formed with induction coils 31, so that different areas in the display area 11 have the electromagnetic touch function. Preferably, the first direction and the second direction are perpendicular.

[0084] Specifically, the input end and the output end of each induction coil 31 are connected to the driving module 2, the input end of the first induction coil 31 is In-1, and the output end is Out-1; the input end of the second induction coil 31 is In-2, and the output end is Out-2; the input end of the Nth induction coil 31 is In-N, and the output end is Out-N.

[0085] Please continue to refer to Figure 4As shown, in one embodiment, in the electromagnetic touch mode, the plurality of induction coils 31 are in a sequential output state along the second direction. Specifically, the output signal of the first control module 4 includes: Gout1, Gout2, ..., GoutN, wherein Gout1, Gout2, ..., GoutN are respectively connected to the first switch module 5 in each induction coil 31; the output signal of the driving module 2 includes: SW1, SW2, ..., SWN, wherein SW1, SW2, ..., SWN are respectively connected to the second switch module 6 in each induction coil 31. In the display driving mode, the signals Gout1, Gout2, ..., GoutN and SW1, SW2, ..., SWN respectively control the first switch module 5 and the second switch module 6 to be disconnected, and in the electromagnetic touch mode, the signals Gout1, Gout2, ..., GoutN control the first switch module 5 to be opened sequentially along the second direction, and the signals SW1, SW2, ..., SWN control the second switch module 6 to be opened sequentially along the second direction.

[0086] Exemplarily, the first switch module 5 is a TFT (Thin Film Transistor), and the second switch module 6 is a MOS tube. Figure 5 As shown, in the display driving mode, Gout1, Gout2, ..., GoutN and SW1, SW2, ..., SWN are all low levels, controlling the first switch modules 5 in different induction coils 31 to be turned on in sequence; in the electromagnetic touch mode, Gout1, Gout2, ..., GoutN are all low levels, controlling the second switch modules 6 in different induction coils 31 to be turned on in sequence.

[0087] In one embodiment, when the touch substrate 100 is scanned line by line, the driving module 2 is in the display driving mode; when the touch substrate 100 is in the scanning interval, the driving module 2 is in the electromagnetic touch mode. Specifically, the driving module 2 includes a display driving module 22 and an electromagnetic touch module 23, which respectively implement the display driving mode and the electromagnetic touch mode. Figure 7 As shown, when the touch substrate 100 is scanned line by line, the display driving module 22 controls the third switch module 9 to be turned on, and the electromagnetic touch module 23 controls the second switch module 6 to be turned off, thereby realizing the display driving function; Figure 6 As shown, when the touch substrate 100 is in a scanning interval, the display driving module 22 controls the third switch module 9 to be disconnected, and the electromagnetic touch module 23 controls the second switch module 6 to be turned on, thereby realizing the electromagnetic touch function.

[0088] In another embodiment, the driving module 2 is configured for time-sharing multiplexing to realize the display driving mode and the electromagnetic touch mode. Electromagnetic induction can be realized during the interval of display driving. The interval time is very short, usually a few milliseconds, so as not to affect the normal display driving.

[0089] Please continue to refer to Figure 6 and 7 As shown, in one embodiment, the substrate 1 further has a third non-display area 14 and a fourth non-display area 15, the display area 11 is located between the third non-display area 14 and the fourth non-display area 15, the first non-display area 12 and the display area 11 are arranged along a first direction (such as the X direction in the figure), the third non-display area 14, the display area 11 and the fourth non-display area 15 are arranged along a second direction (such as the Y direction in the figure), and the first direction and the second direction intersect.

[0090] The touch control substrate 100 further includes a second control module 7 and a third control module 8 . The second control module 7 is disposed in the third non-display area 14 , and the third control module 8 is disposed in the fourth non-display area 15 .

[0091] When the touch substrate 100 is scanning line by line, the second control module 7 and the third control module 8 are in a line-by-line output state; when the touch substrate 100 is in a scanning interval, the second control module 7 and the third control module 8 are in a dormant state. Specifically, the function of the first control module 4 is different from that of the second control module 7 and the third control module 8. The first control module 4 is used to control the first switch module 5, and the second control module 7 and the third control module 8 are used to output line by line when the touch substrate 100 is scanning line by line. Further, the first control module 4, the second control module 7 and the third control module 8 are all gate drive (GIP) circuits, and a control signal line extending along the second direction is connected between the second control module 7 and the third control module 8, specifically including an EM (control) signal line and a SCAN (scanning) signal line, and the EM signal line and the SCAN signal line are arranged one by one along the first direction.

[0092] Reference Figure 8 As shown, in one embodiment, the first signal line 3 includes a data (DATA) line, and in the display drive mode, the data line is used to transmit an image voltage signal. In other embodiments, the first signal line 3 can be other signal lines in the display area 11, which are not specifically limited. Further, the induction coil 31 is determined according to the arrangement of the sub-pixels. For example, if the arrangement of the sub-pixels is Real RGB arrangement, the induction coil 31 can be designed to have 3 turns, and each induction coil 31 includes two DATA-R, two DATA-G, and two DATA-B sub-pixel data lines. For example, if the arrangement of the sub-pixels is RGBR arrangement, the induction coil 31 can be designed to have 4 turns, and each induction coil 31 includes four DATA-R, two DATA-G, and two DATA-B sub-pixel data lines.

[0093] Reference Fig. 9As shown, in one embodiment, multiple induction coils 31 can be connected to form an induction coil. Wherein, when the magnetic flux of one induction coil 31 cannot meet the requirements of electromagnetic induction, multiple induction coils 31 can be connected to form a large induction coil to increase the magnetic flux of the coil. Exemplarily, the output end Out-1 of one induction coil 31 is connected to the input end In-1 of another induction coil 31, so that two 3-turn induction coils 31 are combined into a 6-turn induction coil. Furthermore, the induction coils can be further increased to 9 turns, 12 turns, etc. Wherein, a new switch module can be set between the input and output ends of different induction coils to control their conduction or disconnection.

[0094] Another embodiment of the present application discloses a control method for a touch substrate. Figure 2 The touch control substrate 100 includes a substrate 1, a driving module 2 and a plurality of first signal lines 3. The substrate 1 has a display area 11 and a first non-display area 12 located on one side of the display area 11. The driving module 2 is disposed in the first non-display area 11. The plurality of first signal lines 3 are disposed in the display area 11 and are electrically connected to the driving module 2. The driving module 2 includes a display driving mode and an electromagnetic touch control mode. The control method in this embodiment includes:

[0095] In the display driving mode, the first signal line 3 is controlled to transmit a target signal;

[0096] In the electromagnetic touch mode, a plurality of first signal lines 3 are controlled to form an induction coil, and each induction coil includes a plurality of first signal lines 3 connected to each other.

[0097] The control method of the touch substrate in this embodiment realizes the function of the traditional electromagnetic induction film layer by utilizing the first signal line 3 of the touch substrate 100 itself, avoids adding an electromagnetic induction film layer, and can reduce the thickness and cost of the product. At the same time, it avoids the electromagnetic induction film layer affecting the display transmittance of the product, which is beneficial to reducing the power consumption of the product and avoiding the electromagnetic induction film layer from being shielded or interfered by the display electrode.

[0098] The specific structure, mechanism and technical effect of the touch substrate 100 in this embodiment can refer to the above embodiments and will not be described in detail here.

[0099] Another embodiment of the present application discloses a display module, which includes the touch substrate in the above embodiment.

[0100] The display module provided in this embodiment has a driving module 2 of a touch substrate 100 including a display driving mode and an electromagnetic touch mode. In the display driving mode, the first signal line 3 is used to transmit a target signal. In the electromagnetic touch mode, the first signal line 3 forms an induction coil 31, and each induction coil 31 includes a plurality of first signal lines 3 connected to each other. That is, the first signal line 3 of the touch substrate 100 itself is used to realize the function of the traditional electromagnetic induction film layer, avoiding the addition of an electromagnetic induction film layer, which can reduce the thickness and cost of the product. At the same time, the electromagnetic induction film layer is prevented from affecting the display transmittance of the product, which is beneficial to reducing the power consumption of the product and avoiding the electromagnetic induction film layer from being shielded or interfered by the display electrode. At the same time, display driving and electromagnetic touch are realized through a driving module 2, which further reduces the hardware cost and is beneficial to improving the performance of the display module.

[0101] Another embodiment of the present application discloses a display device, which includes the display panel in the above embodiment. The display device can be on a smart device (such as a mobile phone, VR device, computer, TV, car display, etc.).

[0102] In the display device provided in this embodiment, in the touch substrate 100 of the display module, the driving module 2 includes a display driving mode and an electromagnetic touch mode. In the display driving mode, the first signal line 3 is used to transmit the target signal. In the electromagnetic touch mode, the first signal line 3 forms an induction coil 31, and each induction coil 31 includes a plurality of first signal lines 3 connected to each other. That is, the first signal line 3 of the touch substrate 100 itself is used to realize the function of the traditional electromagnetic induction film layer, avoiding the addition of an electromagnetic induction film layer, which can reduce the thickness and cost of the product. At the same time, the electromagnetic induction film layer is prevented from affecting the display transmittance of the product, which is beneficial to reducing the power consumption of the product and avoiding the electromagnetic induction film layer from being shielded or interfered by the display electrode. At the same time, the display drive and electromagnetic touch are realized through a driving module 2, which further reduces the hardware cost and is beneficial to improving the performance of the display device.

[0103] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0104] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0105] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A touch substrate, characterized in that: include: A substrate, the substrate having a display area and a first non-display area located on one side of the display area; A driving module, wherein the driving module is disposed in the first non-display area; A plurality of first signal lines, wherein the plurality of first signal lines are disposed in the display area and are electrically connected to the driving module; The driving module includes a display driving mode and an electromagnetic touch mode. In the display driving mode, the first signal line is used to transmit a target signal. In the electromagnetic touch mode, a plurality of the first signal lines form an induction coil, and each of the induction coils includes a plurality of the first signal lines connected to each other.

2. The touch substrate according to claim 1, wherein: The substrate further has a second non-display area, and the second non-display area is located at a side of the display area away from the first non-display area; The touch control substrate further includes: a first control module, wherein the first control module is disposed in the second non-display area; A plurality of first switch modules, wherein the plurality of first switch modules are arranged in the second non-display area, and the plurality of first signal lines in the induction coil are connected to the first control module through the first switch modules; In the display driving mode, the first control module controls the first switch module to be disconnected, and in the electromagnetic touch mode, the first control module controls the first switch module to be connected, and the first signal line connected to the first switch module forms an induction coil.

3. The touch substrate according to claim 2, wherein: The driving module includes a display driving module and an electromagnetic touch control module. When the display driving module is working, the touch control substrate is in a display driving mode. When the electromagnetic touch control module is working, the touch control substrate is in an electromagnetic touch control mode. The display driving module is connected to the first signal line.

4. The touch control substrate according to claim 3, wherein: The touch control substrate further includes: A plurality of second switch modules, wherein the plurality of second switch modules are arranged in the first non-display area, and a portion of the first signal lines in the induction coil is connected to the electromagnetic touch control module through the second switch modules; A plurality of third switch modules, wherein the plurality of the third switch modules are arranged in the first non-display area, and each of the first signal lines is connected to the display driving module via one of the third switch modules; In the display driving mode, the electromagnetic touch control module controls the second switch module to be disconnected, the display driving module controls the third switch module to be turned on, and the first signal line transmits the target signal of the display driving module; In the electromagnetic touch mode, the display driving module controls the third switch module to be disconnected, and the electromagnetic touch module controls the second switch module to be turned on. The first signal line connected to the second switch module forms an induction coil. In each induction coil, the first switch module and the second switch module sequentially connect the first signal lines end to end to form a multi-turn coil. Preferably, the number of the first switch modules connected to each of the induction coils is one more than the number of the second switch modules; Preferably, the second switch module is integrated into the electromagnetic touch control module.

5. The touch substrate according to claim 1, wherein: When the touch substrate is scanned line by line, the driving module is in the display driving mode; When the touch substrate is in scanning interval, the driving module is in the electromagnetic touch mode; Preferably, the first signal line comprises a data line, and in the display driving mode, the data line is used to transmit an image voltage signal.

6. The touch substrate according to claim 5, wherein: The substrate further comprises a third non-display area and a fourth non-display area, the display area is located between the third non-display area and the fourth non-display area, the first non-display area and the display area are arranged along a first direction, the third non-display area, the display area and the fourth non-display area are arranged along a second direction, and the first direction intersects with the second direction; The touch control substrate further includes: a second control module and a third control module, wherein the second control module is disposed in the third non-display area, and the third control module is disposed in the fourth non-display area; When the touch substrate is scanned line by line, the second control module and the third control module are in a line by line output state; When the touch substrate is in a scanning interval, the second control module and the third control module are in a dormant state; Preferably, the first direction and the second direction are perpendicular.

7. The touch substrate according to claim 1, wherein: The first signal line extends along a first direction; in the electromagnetic touch mode, the first signal line forms a plurality of induction coils, and the plurality of induction coils are arranged at intervals along a second direction; wherein the first direction intersects with the second direction; Preferably, the first direction is perpendicular to the second direction; Preferably, in the electromagnetic touch mode, a plurality of the induction coils are connected to form one induction coil.

8. The touch substrate according to claim 7, wherein: In the electromagnetic touch mode, the plurality of induction coils are in a sequential output state along the second direction.

9. A control method for a touch substrate, the touch substrate comprising a substrate, a driving module and a plurality of first signal lines, the substrate having a display area and a first non-display area located on one side of the display area, the driving module being arranged in the first non-display area, the plurality of first signal lines being arranged in the display area and being electrically connected to the driving module, the driving module comprising a display driving mode and an electromagnetic touch control mode, characterized in that: The control method comprises: In the display driving mode, controlling the first signal line to transmit a target signal; In the electromagnetic touch mode, a plurality of the first signal lines are controlled to form an induction coil, and each of the induction coils includes a plurality of the first signal lines connected to each other.

10. A display module, characterized in that: It comprises the touch control substrate as described in any one of claims 1 to 8.

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