Touch substrate, driving method and touch display panel

Abstract

The invention discloses a touch substrate, a driving method and a touch display panel, the touch substrate is provided with a touch driving electrode, a touch sensing electrode, an invalid touch driving electrode and an invalid touch sensing electrode, and the touch driving electrode and the touch sensing electrode are arranged in a mutually insulated and crossed mode. The invalid touch driving electrodes and the touch driving electrodes are insulated from each other and are alternately arranged in parallel, and the invalid touch sensing electrodes and the touch sensing electrodes are insulated from each other and are alternately arranged in parallel; the first heating signal line and the second heating signal line are arranged on the front surface of the substrate and are used for applying electric signals to the invalid touch driving electrode and the invalid touch sensing electrode; therefore, the invalid touch driving electrodes and the invalid touch sensing electrodes can be used for heating the touch substrate so as to improve the response speed of liquid crystal molecules in the liquid crystal display device, and static electricity on the touch substrate can be removed so as to prevent the influence of the static electricity on the touch effect and a display picture.

Description

Technical Field

[0001] The present invention relates to the technical field of displays, and particularly to a touch control substrate, a driving method, and a touch display panel. Background Art

[0002] With the rapid development of display technologies, touch display panels have been widely accepted and used by people. For example, touch display panels are used in smartphones, tablet computers, etc. The touch display panel combines a touch panel and a display panel into one by using an embedded touch technology, and embeds the touch panel function into the display panel, so that the display panel has both the functions of displaying and sensing touch inputs.

[0003] According to the different setting methods of the touch sensing layer in the display panel, touch display panels are divided into structures such as Addon Mode, In-cell, and On-cell. The In-cell touch screen integrates the touch function into the display screen, so it can effectively reduce the thickness of the entire display and simplify the production process, making the product thinner and lighter and the production cost lower. The On-cell touch screen directly configures a touch panel on the liquid crystal display panel, and the technical difficulty is much lower than that of the In-Cell technology. It is widely used and is one of the mainstream touch technologies in current liquid crystal display devices.

[0004] The fluidity of liquid crystal molecules in a liquid crystal display device is affected by temperature, resulting in the response speed of the liquid crystal display device being also affected by temperature. The lower the temperature, the worse the fluidity of liquid crystal molecules and the slower the response speed of the liquid crystal display device. With the increasing development of in-vehicle displays, in-vehicle display devices need to adapt to various environments. Especially in environments with relatively low temperatures, there are great challenges for the startup of liquid crystal display devices. In this case, various designs need to be made to the structure of the liquid crystal display device to improve the response speed of the liquid crystal display device. In the prior art, in order to heat the liquid crystal display device, an additional process is usually required to manufacture a heating structure to heat the liquid crystal display device, which will make the structure of the liquid crystal display device more complex and the manufacturing cost higher. Summary of the Invention

[0005] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the present invention is to provide a touch control substrate, a driving method, and a touch display panel to solve the problems that the heating structure of the liquid crystal display device in the prior art is relatively complex and the manufacturing cost is relatively high.

[0006] The purpose of the present invention is achieved by the following technical solutions: The present invention provides a touch control substrate, including: A substrate; Touch driving electrodes, touch sensing electrodes, invalid touch driving electrodes, and invalid touch sensing electrodes provided on the front side of the substrate, wherein the touch driving electrodes and the touch sensing electrodes are arranged in an insulating and intersecting manner, the invalid touch driving electrodes and the touch driving electrodes are insulated from each other and arranged alternately in parallel, and the invalid touch sensing electrodes and the touch sensing electrodes are insulated from each other and arranged alternately in parallel; Touch driving traces, touch sensing traces, pads, first heating signal lines, and second heating signal lines provided on the front side of the substrate, wherein one ends of the touch driving traces, the touch sensing traces, the first heating signal lines, and the second heating signal lines are respectively connected to the corresponding pads, the other end of the touch driving trace is connected to the corresponding touch driving electrode, the other end of the touch sensing trace is connected to the corresponding touch sensing electrode, and the other ends of the first heating signal line and the second heating signal line are used to apply electrical signals to the invalid touch driving electrodes and the invalid touch sensing electrodes; In the heating mode, the first heating signal line and the second heating signal line are used to apply heating signals to the invalid touch driving electrodes and the invalid touch sensing electrodes to make the invalid touch driving electrodes and the invalid touch sensing electrodes generate heat; in the electrostatic elimination mode, the first heating signal line and the second heating signal line are used to apply grounding signals to the invalid touch driving electrodes and the invalid touch sensing electrodes.

[0007] Further, a first metal layer, a transparent conductive layer, and a second metal layer located on different layers are provided on the front side of the substrate, the first metal layer is in contact with the transparent conductive layer, and the second metal layer is spaced apart from the first metal layer; The invalid touch driving electrode includes an invalid touch driving metal electrode and an invalid touch driving transparent electrode arranged in a stacked manner, the touch driving trace includes a first touch driving metal trace, the pad includes a metal pad and a transparent pad arranged in a stacked manner, the touch driving electrode, the invalid touch driving metal electrode, the first touch driving metal trace, and the metal pad are all made of the first metal layer, and the invalid touch driving transparent electrode and the transparent pad are all made of the transparent conductive layer; The invalid touch sensing electrode includes an invalid touch sensing metal electrode, the touch sensing trace includes a first touch sensing metal trace, and the touch sensing electrode, the invalid touch sensing metal electrode, and the first touch sensing metal trace are all made of the second metal layer.

[0008] Further, the touch driving trace includes a second touch driving metal trace arranged in a stacked manner with the first touch driving metal trace, and the second touch driving metal trace is made of the second metal layer; The touch sensing trace includes a second touch sensing metal trace that is stacked with the first touch sensing metal trace, and the second touch sensing metal trace is made of the first metal layer.

[0009] Further, the touch driving trace includes a touch driving transparent trace that is stacked with the first touch driving metal trace, the touch sensing trace includes a touch sensing transparent trace that is stacked with the first touch sensing metal trace, and both the touch driving transparent trace and the touch sensing transparent trace are made of the transparent conductive layer.

[0010] Further, the first heating signal line includes a first heating metal signal line, the second heating signal line includes a second heating metal signal line, and both the first heating metal signal line and the second heating metal signal line are made of the first metal layer; and / or, the first heating signal line includes a first heating transparent signal line, the second heating signal line includes a second heating transparent signal line, and both the first heating transparent signal line and the second heating transparent signal line are made of the transparent conductive layer; and / or, the first heating signal line includes a third heating metal signal line, the second heating signal line includes a fourth heating metal signal line, and both the third heating metal signal line and the fourth heating metal signal line are made of the second metal layer.

[0011] Further, the touch driving electrode, the invalid touch driving metal electrode, the touch sensing electrode, and the invalid touch sensing metal electrode are all in a mesh structure; The transparent conductive layer includes transparent electrode blocks located in the mesh holes of the touch driving electrode. The transparent electrode blocks are insulated and spaced apart from the touch driving electrode, and the transparent electrode blocks in the area corresponding to the invalid touch sensing metal electrode are conductively connected to the invalid touch sensing metal electrode.

[0012] Further, the invalid touch driving electrode and the invalid touch sensing electrode are conductively connected in the intersecting area; Both the first heating signal line and the second heating signal line are conductively connected to one end of the invalid touch sensing electrode; or, the first heating signal line is conductively connected to one end of the invalid touch sensing electrode, and the second heating signal line is conductively connected to the other end of the invalid touch sensing electrode.

[0013] Further, a black matrix and a color resist layer are provided on the back surface of the substrate, and a plurality of the color resist layers are arranged in an array and spaced apart from each other by the black matrix.

[0014] The present application further provides a driving method for a touch control substrate, which is used to drive the touch control substrate as described above. The driving method includes: In the heating mode, a heating signal is applied to the invalid touch driving electrode and the invalid touch sensing electrode through the first heating signal line and the second heating signal line, so that the invalid touch driving electrode and the invalid touch sensing electrode generate heat. In the static electricity removal mode, a grounding signal is applied to the invalid touch driving electrode and the invalid touch sensing electrode through the first heating signal line and the second heating signal line, so that the invalid touch driving electrode and the invalid touch sensing electrode remove the static electricity on the touch control substrate.

[0015] The present application further provides a touch display panel, which includes the touch control substrate as described above, an array substrate disposed opposite to the touch control substrate, and a liquid crystal layer located between the touch control substrate and the array substrate. The front surface of the touch control substrate is disposed on the side away from the liquid crystal layer, and the back surface of the touch control substrate is disposed on the side facing the liquid crystal layer.

[0016] The beneficial effects of the present invention are as follows: By providing a first heating signal line and a second heating signal line on the touch control substrate and using them to apply electrical signals to the invalid touch driving electrode and the invalid touch sensing electrode. In the heating mode, the first heating signal line and the second heating signal line are used to apply a heating signal to the invalid touch driving electrode and the invalid touch sensing electrode, so that the invalid touch driving electrode and the invalid touch sensing electrode generate heat. In the static electricity removal mode, the first heating signal line and the second heating signal line are used to apply a grounding signal to the invalid touch driving electrode and the invalid touch sensing electrode. Thus, the invalid touch driving electrode and the invalid touch sensing electrode in the mutual capacitance touch can be reasonably utilized. They can not only be used to heat the touch control substrate to improve the response speed of liquid crystal molecules in the liquid crystal display device, but also remove the static electricity on the touch control substrate to prevent the influence of static electricity on the touch effect and the display screen. Moreover, the structure of the liquid crystal display device is simplified and the manufacturing cost is reduced. Description of the Drawings

[0017] Figure 1 is a schematic plan view of the touch control substrate in Embodiment 1 of the present invention.

[0018] Figure 2 is a schematic cross-sectional view of the touch control substrate along the touch sensing electrode in Embodiment 1 of the present invention.

[0019] Figure 3 is a schematic cross-sectional view of the touch control substrate along the invalid touch sensing electrode in Embodiment 1 of the present invention.

[0020] Figure 4It is a schematic cross-sectional structure diagram of the touch control substrate at the touch control driving trace bonding position in the first embodiment of the present invention.

[0021] Figure 5 It is a schematic cross-sectional structure diagram of the touch control substrate at the touch control sensing trace bonding position in the first embodiment of the present invention.

[0022] Figure 6 It is a schematic plan view of the touch control driving electrode, the touch control driving trace and the corresponding pad in the first embodiment of the present invention.

[0023] Figure 7 It is a schematic plan view of the touch control sensing electrode, the touch control sensing trace and the corresponding pad in the first embodiment of the present invention.

[0024] Figure 8 It is a schematic plan view of the invalid touch control driving electrode, the invalid touch control sensing electrode, the first heating signal line, the second heating signal line and the corresponding pad in the first embodiment of the present invention.

[0025] Figure 9 It is a schematic plan view of the first metal layer in the first embodiment of the present invention.

[0026] Figure 10 It is a schematic plan view of the transparent conductive layer in the first embodiment of the present invention.

[0027] Figure 11 It is a schematic plan view of the second metal layer in the first embodiment of the present invention.

[0028] Figure 12 It is a schematic plan view of the first metal layer in the second embodiment of the present invention.

[0029] Figure 13 It is a schematic plan view of the transparent conductive layer in the second embodiment of the present invention.

[0030] Figure 14 It is a schematic plan view of the second metal layer in the second embodiment of the present invention.

[0031] Figure 15 It is a schematic plan view of the touch control substrate in the third embodiment of the present invention.

[0032] Figure 16 It is a schematic plan view of the second metal layer in the third embodiment of the present invention.

[0033] Figure 17 It is a schematic plan view of the touch control substrate in the fourth embodiment of the present invention.

[0034] Figure 18 It is a schematic plan view of the first metal layer in the fourth embodiment of the present invention.

[0035] Figure 19 It is a schematic structural diagram of the touch display device in the fifth embodiment of the present invention.

[0036] Figures 20a - 20d It is a schematic structural diagram of the manufacturing process of the touch display panel in the fifth embodiment of the present invention.

[0037] Figure 21 It is a schematic structural diagram of the touch display device in the sixth embodiment of the present invention.

[0038] Figures 22a - 22d It is a schematic structural diagram of the manufacturing process of the touch display panel in the sixth embodiment of the present invention. Detailed Embodiment

[0039] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following combines the drawings and preferred embodiments to detail the specific embodiments, structures, features, and effects of the touch substrate, driving method, and touch display panel according to the present invention as follows: [Embodiment 1] Figure 1 It is a schematic plan view of the touch substrate in the first embodiment of the present invention. Figure 2 It is a schematic cross-sectional view of the touch substrate along the touch sensing electrode in the first embodiment of the present invention. Figure 3 It is a schematic cross-sectional view of the touch substrate along the ineffective touch sensing electrode in the first embodiment of the present invention. Figure 4 It is a schematic cross-sectional view of the touch substrate at the binding location of the touch driving trace in the first embodiment of the present invention. Figure 5 It is a schematic cross-sectional view of the touch substrate at the binding location of the touch sensing trace in the first embodiment of the present invention. Figure 6 It is a schematic plan view of the touch driving electrode, touch driving trace, and corresponding pad in the first embodiment of the present invention. Figure 7 It is a schematic plan view of the touch sensing electrode, touch sensing trace, and corresponding pad in the first embodiment of the present invention. Figure 8 It is a schematic plan view of the ineffective touch driving electrode, ineffective touch sensing electrode, first heating signal line, second heating signal line, and corresponding pads in the first embodiment of the present invention.

[0040] As Figures 1 to 8 shown, a touch substrate provided in the first embodiment of the present invention includes: Substrate 10; The touch driving electrodes 111, touch sensing electrodes 131, invalid touch driving electrodes 141 and invalid touch sensing electrodes 142 are disposed on the front surface of the substrate 10. The touch driving electrodes 111 and the touch sensing electrodes 131 are arranged in an insulating and intersecting manner. The invalid touch driving electrodes 141 and the touch driving electrodes 111 are insulated from each other and arranged alternately in parallel. The invalid touch sensing electrodes 142 and the touch sensing electrodes 131 are insulated from each other and arranged alternately in parallel; The touch driving traces 143, touch sensing traces 144, pads 145, first heating signal lines 146 and second heating signal lines 147 are disposed on the front surface of the substrate 10. One ends of the touch driving traces 143, touch sensing traces 144, first heating signal lines 146 and second heating signal lines 147 are respectively connected to the corresponding pads 145. The other end of the touch driving trace 143 is connected to the corresponding touch driving electrode 111. The other end of the touch sensing trace 144 is connected to the corresponding touch sensing electrode 131. The other ends of the first heating signal line 146 and the second heating signal line 147 are used to apply electrical signals to the invalid touch driving electrodes 141 and the invalid touch sensing electrodes 142; In the heating mode, the first heating signal line 146 and the second heating signal line 147 are used to apply heating signals to the invalid touch driving electrodes 141 and the invalid touch sensing electrodes 142 (that is, one of the first heating signal line 146 and the second heating signal line 147 applies a positive voltage, and the other applies a negative voltage) so that the invalid touch driving electrodes 141 and the invalid touch sensing electrodes 142 generate heat. In the static electricity removing mode, the first heating signal line 146 and the second heating signal line 147 are used to apply a grounding signal to the invalid touch driving electrodes 141 and the invalid touch sensing electrodes 142. Among them, the main functions of the invalid touch driving electrodes 141 and the invalid touch sensing electrodes 142 in the existing mutual capacitance touch are to separate adjacent touch driving electrodes 111 from each other and separate adjacent touch sensing electrodes 131 from each other, and no electrical signals are applied. In this application, by providing the first heating signal line 146 and the second heating signal line 147 on the touch substrate and using them to apply electrical signals to the invalid touch driving electrodes 141 and the invalid touch sensing electrodes 142, the invalid touch driving electrodes 141 and the invalid touch sensing electrodes 142 in the mutual capacitance touch can be reasonably utilized. It can not only be used to heat the touch substrate to improve the response speed of liquid crystal molecules in the liquid crystal display device, but also remove the static electricity on the touch substrate to prevent the influence of static electricity on the touch effect and the display screen, and also simplifies the structure of the liquid crystal display device and reduces the manufacturing cost.

[0041] Figure 9 It is a schematic plan view of the first metal layer in the first embodiment of the present invention. Figure 10 It is a schematic plan view of the transparent conductive layer in the first embodiment of the present invention.Figure 11 It is a schematic plan view of the second metal layer in the first embodiment of the present invention. As Figures 9 - 11 shown, on the front side of the substrate 10, there are a first metal layer 11, a transparent conductive layer 12, and a second metal layer 13 located in different layers. The first metal layer 11 is in contact with the transparent conductive layer 12, and the second metal layer 13 is spaced apart from the first metal layer 11. Refer to Figure 2 and Figure 3 shown, the transparent conductive layer 12 covers the front side of the first metal layer 11, the first insulating layer 101 covers the front sides of the first metal layer 11 and the transparent conductive layer 12, the second metal layer 13 covers the front side of the first insulating layer 101, and the second insulating layer 102 covers the front side of the second metal layer 13. That is, on the front side of the substrate 10, the first metal layer 11, the transparent conductive layer 12, the first insulating layer 101, the second metal layer 13, and the second insulating layer 102 are sequentially fabricated. Among them, the length that the pad 145 exposes at least the first insulating layer 101 is 100 um, and the length that the pad 145 exposes at least the second insulating layer 102 is 50 um. That is, the width of the first insulating layer 101 covered by the second insulating layer 102 in the area near the pad 145 is 50 um. The first metal layer 11 and the second metal layer 13 can be made of metals such as copper (Cu), silver (Ag), chromium (Cr), molybdenum (Mo), aluminum (Al), titanium (Ti), manganese (Mn), nickel (Ni), etc., or combinations of the above metals, such as Al / Mo, Cu / Mo, etc. The transparent conductive layer 12 can be made of transparent conductive materials such as indium tin oxide (ITO) or indium zinc oxide (IZO). Of course, in other embodiments, it can also be that the first metal layer 11 covers the front side of the transparent conductive layer 12, the first insulating layer 101 covers the front sides of the first metal layer 11 and the transparent conductive layer 12, the second metal layer 13 covers the front side of the first insulating layer 101, and the second insulating layer 102 covers the front side of the second metal layer 13. That is, on the front side of the substrate 10, the transparent conductive layer 12, the first metal layer 11, the first insulating layer 101, the second metal layer 13, and the second insulating layer 102 are sequentially fabricated.

[0042] In this embodiment, the invalid touch driving electrode 141 includes an invalid touch driving metal electrode 112 ( Figure 2 , Figure 9 ) and an invalid touch driving transparent electrode 122 ([[]] Figure 2 , Figure 10 ) which are stacked on top of each other, thereby improving the heating effect and the static elimination effect of the invalid touch driving electrode 141; the touch driving trace 143 includes a first touch driving metal trace 113 ([[]] Figure 9 ); the pad 145 includes a metal pad 115 ([[]] Figure 9 ) and a transparent pad 125 ([[]] Figure 10 ​​​​), the transparent pad 125 covers the front surface of the metal pad 115 and covers the metal pad 115, thereby reducing the impedance of the pad 145 and preventing the pad 145 from being corroded. Among them, the touch driving electrode 111, the invalid touch driving metal electrode 112, the first touch driving metal trace 113, and the metal pad 115 are all made of the first metal layer 11, that is, the first metal layer 11 includes the touch driving electrode 111, the invalid touch driving metal electrode 112, the first touch driving metal trace 113, and the metal pad 115; the invalid touch driving transparent electrode 122 and the transparent pad 125 are both made of the transparent conductive layer 12, that is, the transparent conductive layer 12 includes the invalid touch driving transparent electrode 122 and the transparent pad 125. The invalid touch sensing electrode 142 includes the invalid touch sensing metal electrode 132( Figure 3 , Figure 11 ), the touch sensing trace 144 includes the first touch sensing metal trace 134( Figure 3 , Figure 11 ), the touch sensing electrode 131, the invalid touch sensing metal electrode 132, and the first touch sensing metal trace 134 are all made of the second metal layer 13, that is, the second metal layer 13 includes the touch sensing electrode 131, the invalid touch sensing metal electrode 132, and the first touch sensing metal trace 134.

[0043] In this embodiment, the first heating signal line 146 includes the first heating metal signal line 116( Figure 9 ) and the third heating metal signal line 136( Figure 11 ), the second heating signal line 147 includes the second heating metal signal line 117( Figure 9 ) and the fourth heating metal signal line 137( Figure 11 ), the first heating metal signal line 116 and the second heating metal signal line 117 are both made of the first metal layer 11, that is, the first metal layer 11 includes the touch driving electrode 111, the invalid touch driving metal electrode 112, the first touch driving metal trace 113, the metal pad 115, the first heating metal signal line 116, and the second heating metal signal line 117; the third heating metal signal line 136 and the fourth heating metal signal line 137 are both made of the second metal layer 13, that is, the second metal layer 13 includes the touch sensing electrode 131, the invalid touch sensing metal electrode 132, the first touch sensing metal trace 134, the third heating metal signal line 136, and the fourth heating metal signal line 137. Of course, in other embodiments, the first heating signal line 146 may also include the first heating metal signal line 116 or the third heating metal signal line 136, and the second heating signal line 147 includes the second heating metal signal line 117 or the fourth heating metal signal line 137.

[0044] In this embodiment, a ground wire 148 is further provided on the front surface of the substrate 10(Figure 1 ), one end of the ground wire 148 is connected to the corresponding pad 145. There are two ground wires 148 which are respectively arranged around the edge of the substrate 10. The ground wire 148 is used to apply a ground signal to prevent static electricity from being generated in real time. Among them, the ground wire 148 includes a first metal ground wire 118 ( Figure 9 ) and a second metal ground wire 138 ( Figure 11 ). The first metal ground wire 118 is made of the first metal layer 11, that is, the first metal layer 11 includes a touch driving electrode 111, an invalid touch driving metal electrode 112, a first touch driving metal trace 113, a metal pad 115, a first heating metal signal line 116, a second heating metal signal line 117, and a first metal ground wire 118; the second metal ground wire 138 is made of the second metal layer 13, that is, the second metal layer 13 includes a touch sensing electrode 131, an invalid touch sensing metal electrode 132, a first touch sensing metal trace 134, a third heating metal signal line 136, a fourth heating metal signal line 137, and a second metal ground wire 138.

[0045] In this embodiment, the touch driving electrode 111, the invalid touch driving metal electrode 112, the touch sensing electrode 131, and the invalid touch sensing metal electrode 132 are all in a grid structure, so as to avoid the touch driving electrode 111, the invalid touch driving metal electrode 112, the touch sensing electrode 131, and the invalid touch sensing metal electrode 132 completely blocking the light, and the light for the picture display can pass through.

[0046] Furthermore, the transparent conductive layer 12 includes a transparent electrode block 121 ( Figure 10 ) located in the mesh holes of the touch driving electrode 111. The transparent electrode block 121 is insulated and spaced apart from the touch driving electrode 111. The transparent electrode block 121 in the area corresponding to the invalid touch sensing metal electrode 132 is conductively connected to the invalid touch sensing metal electrode 132, so as to increase the heating effect and the anti-static effect.

[0047] In this embodiment, as Figure 2 and Figure 8As shown, the invalid touch driving electrode 141 and the invalid touch sensing electrode 142 are conductively connected in the intersecting area, so that the electrical signals of the invalid touch driving electrode 141 and the invalid touch sensing electrode 142 can be conducted to each other. Further, both the first heating signal line 146 and the second heating signal line 147 are conductively connected to one end of the invalid touch sensing electrode 142. Among them, touch driving traces 143 are connected to both the left and right ends of the touch driving electrode 111, the touch sensing trace 144 is connected to the lower end of the touch sensing electrode 131, and the upper end of the invalid touch sensing electrode 142 is connected to the first heating signal line 146 and the second heating signal line 147. Thus, all the upper ends of the invalid touch sensing electrodes 142 can be connected together by only one first heating signal line 146 and one second heating signal line 147, reducing the wiring difficulty.

[0048] It can be understood that the touch driving electrode 111, the touch sensing electrode 131, the invalid touch driving electrode 141, and the invalid touch sensing electrode 142 are all located in the display area, the touch driving traces 143, the touch sensing trace 144, the first heating signal line 146, the second heating signal line 147, and the ground line 148 are all located in the non-display area at the edge of the display area, and the pad 145 is located in the bonding area within the non-display area. Patterned openings are provided on the first insulating layer 101. Among them, the first heating metal signal line 116, the second heating metal signal line 117, the first metal ground line 118, the transparent electrode block 121, and the invalid touch driving transparent electrode 122 all leak out from the openings, so as to be in contact with the corresponding electrodes or wires in the second metal layer 13 when covering the second metal layer 13, realizing conductive connection.

[0049] This application also provides a driving method for a touch substrate. When driving the touch substrate as described above, the driving method includes: In the heating mode, a heating signal is applied to the invalid touch driving electrode 141 and the invalid touch sensing electrode 142 through the first heating signal line 146 and the second heating signal line 147, so that the invalid touch driving electrode 141 and the invalid touch sensing electrode 142 generate heat. Specifically, the control chip applies a positive voltage to one of the first heating signal line 146 and the second heating signal line 147, and a negative voltage to the other, so that the invalid touch driving electrode 141 and the invalid touch sensing electrode 142 generate heat to heat the touch substrate and the display panel, and improve the response speed of the liquid crystal molecules in the liquid crystal display device.

[0050] In the static elimination mode, a ground signal is applied to the invalid touch driving electrode 141 and the invalid touch sensing electrode 142 through the first heating signal line 146 and the second heating signal line 147, so as to eliminate the static electricity on the touch substrate for the invalid touch driving electrode 141 and the invalid touch sensing electrode 142. Specifically, the control chip applies a ground signal (GND) to the first heating signal line 146 and the second heating signal line 147, so that the invalid touch driving electrode 141 and the invalid touch sensing electrode 142 are grounded to remove the static electricity on the touch substrate and prevent the static electricity from affecting the touch effect and the display screen.

[0051] [Embodiment 2] Figure 12 It is a schematic plan view of the first metal layer in Embodiment 2 of the present invention. Figure 13 It is a schematic plan view of the transparent conductive layer in Embodiment 2 of the present invention. Figure 14 It is a schematic plan view of the second metal layer in Embodiment 2 of the present invention. As Figures 12 - 14 shown, the touch substrate and the driving method provided in Embodiment 2 of the present invention are basically the same as those in Embodiment 1 ( Figures 1 to 11 ), and the difference is that in this embodiment: The touch driving trace 143 includes a second touch driving metal trace 133 ([[]] Figure 14 ) that is stacked with the first touch driving metal trace 113. The second touch driving metal trace 133 is made of the second metal layer 13. That is, the second metal layer 13 includes a touch sensing electrode 131, an invalid touch sensing metal electrode 132, a second touch driving metal trace 133, a first touch sensing metal trace 134, a third heating metal signal line 136, a fourth heating metal signal line 137, and a second metal ground wire 138. The touch sensing trace 144 includes a second touch sensing metal trace 114 ([[]] Figure 12 ) that is stacked with the first touch sensing metal trace 134. The second touch sensing metal trace 114 is made of the first metal layer 11. That is, the first metal layer 11 includes a touch driving electrode 111, an invalid touch driving metal electrode 112, a first touch driving metal trace 113, a second touch sensing metal trace 114, a metal pad 115, a first heating metal signal line 116, a second heating metal signal line 117, and a first metal ground wire 118.

[0052] Further, the touch driving trace 143 includes a touch driving transparent trace 123 laminated with the first touch driving metal trace 113 and the second touch driving metal trace 133. The touch sensing trace 144 includes a touch sensing transparent trace 124 laminated with the first touch sensing metal trace 134 and the second touch sensing metal trace 114. The first heating signal line 146 includes a first heating transparent signal line 126 laminated with the first heating metal signal line 116 and the third heating metal signal line 136. The second heating signal line 147 includes a second heating transparent signal line 127 laminated with the second heating metal signal line 117 and the fourth heating metal signal line 137. The ground line 148 includes a transparent ground line 128 laminated with the first metal ground line 118 and the second metal ground line 138. The touch driving transparent trace 123, the touch sensing transparent trace 124, the first heating transparent signal line 126, the second heating transparent signal line 127, and the transparent ground line 128 are all made of the transparent conductive layer 12. That is, the transparent conductive layer 12 includes transparent electrode blocks 121, invalid touch driving transparent electrodes 122, touch driving transparent traces 123, touch sensing transparent traces 124, transparent pads 125, first heating transparent signal lines 126, second heating transparent signal lines 127, and transparent ground lines 128. Thus, the first metal layer 11, the transparent conductive layer 12, and the second metal layer 13 can be utilized to the maximum extent, and the impedances of the touch driving trace 143, the touch sensing trace 144, the first heating signal line 146, the second heating signal line 147, and the ground line 148 can be reduced.

[0053] Those skilled in the art should understand that the remaining structures and working principles of this embodiment are the same as those of Embodiment 1 and will not be elaborated here.

[0054] [Embodiment 3] Figure 15 is a schematic plan view of the touch substrate in Embodiment 3 of the present invention. Figure 16 is a schematic plan view of the second metal layer in Embodiment 3 of the present invention. As Figure 15 and Figure 16 shown, the touch substrate and the driving method provided in Embodiment 3 of the present invention are basically the same as those of Embodiment 1 ( Figures 1 to 11 ) and Embodiment 2 ( Figures 12 to 14 ). The differences are that in this embodiment: The first heating signal line 146 is electrically connected to one end of the invalid touch sensing electrode 142, and the second heating signal line 147 is electrically connected to the other end of the invalid touch sensing electrode 142. By applying heating signals to the invalid touch sensing electrode 142 and the invalid touch driving electrode 141 from the upper and lower ends of the invalid touch sensing electrode 142, the heating effect of the invalid touch sensing electrode 142 and the invalid touch driving electrode 141 can be improved. Among them, the first heating signal line 146 is electrically connected to the upper end of the invalid touch sensing electrode 142, and the second heating signal line 147 is electrically connected to the lower end of the invalid touch sensing electrode 142. The number of the first heating signal lines 146 can be one or two, and the upper ends of multiple invalid touch sensing electrodes 142 are connected together. The number of the second heating signal lines 147 is multiple and corresponds one by one to the number of the invalid touch sensing electrodes 142, so that the second heating signal line 147 can be made of at least one of the first metal layer 11, the transparent conductive layer 12, and the second metal layer 13.

[0055] Those skilled in the art should understand that the remaining structures and working principles of this embodiment are the same as those of Embodiment 1 and Embodiment 2, and will not be described in detail here.

[0056] [Embodiment 4] Figure 17 It is a schematic plan view of the touch control substrate in Embodiment 4 of the present invention. Figure 18 It is a schematic plan view of the first metal layer in Embodiment 4 of the present invention. As Figure 17 and Figure 18 shown, the touch control substrate and the driving method provided in Embodiment 4 of the present invention are basically the same as those in Embodiment 3 ( Figure 15 and Figure 16 ), and the difference is that in this embodiment: The number of the second heating signal lines 147 is one, and the upper ends of multiple invalid touch sensing electrodes 142 are connected together, but the second heating signal line 147 and the touch sensing trace 144 cannot be made of the same conductive film layer. For example, the second heating signal line 147 is made of the first metal layer 11, while the touch sensing trace 144 is made of the second metal layer 13.

[0057] Those skilled in the art should understand that the remaining structures and working principles of this embodiment are the same as those of Embodiment 3, and will not be described in detail here.

[0058] [Embodiment 5] Figure 19 It is a schematic structural view of the touch display device in Embodiment 5 of the present invention. As Figure 19As shown in the figure, Embodiment 5 of the present invention provides a touch display panel, which includes the touch substrate as described above, an array substrate 20 disposed opposite to the touch substrate, and a liquid crystal layer 30 located between the touch substrate and the array substrate 20. The front side of the touch substrate is disposed away from the liquid crystal layer 30, and the back side of the touch substrate is disposed toward the liquid crystal layer 30.

[0059] Among them, the liquid crystal layer 30 preferably uses positive liquid crystal molecules, that is, liquid crystal molecules with positive dielectric anisotropy. In the initial state, the positive liquid crystal molecules in the liquid crystal layer 30 are aligned parallel to the touch substrate and the array substrate 20, and the alignment directions of the positive liquid crystal molecules on the side close to the touch substrate and the positive liquid crystal molecules on the side close to the array substrate 20 are parallel or antiparallel. Of course, in other embodiments, the liquid crystal layer 30 can also use negative liquid crystal molecules, and the negative liquid crystal molecules in the liquid crystal layer 30 can be aligned perpendicular to the touch substrate and the array substrate 20, that is, an alignment method similar to the VA display mode.

[0060] The back side of the substrate 10 is provided with a black matrix 15 and a color resist layer 16. A plurality of color resist layers 16 are arranged in an array and are separated from each other by the black matrix 15. The color resist layer 16 includes color group materials of three colors: red (R), green (G), and blue (B), corresponding to pixels of red, green, and blue colors respectively. That is, the touch substrate also serves as a color filter substrate.

[0061] On the side of the array substrate 20 facing the liquid crystal layer 30, a plurality of scan lines (not shown in the figure) and a plurality of data lines (not shown in the figure) are insulated and crossed to define a plurality of pixel units. Each pixel unit is provided with a pixel electrode 22 and a thin film transistor (not shown in the figure). The pixel electrode 22 is electrically connected to the data line adjacent to the thin film transistor through the thin film transistor. Among them, the thin film transistor includes a gate, an active layer, a drain, and a source. The gate and the scan line are on the same layer and are electrically connected. The gate and the active layer are separated by an insulating layer. The source is electrically connected to the data line, and the drain is electrically connected to the pixel electrode 22 through a contact hole.

[0062] As Figure 19 shown in the figure, in this embodiment, a common electrode 21 is further provided on the side of the array substrate 20 facing the liquid crystal layer 30. The common electrode 21 and the pixel electrode 22 are on different layers and are insulated from each other by an insulating layer. The common electrode 21 can be located above or below the pixel electrode 22 ( Figure 19As shown, the common electrode 21 is located below the pixel electrode 22). Preferably, the common electrode 21 is a planar electrode provided over the entire surface, and the pixel electrode 22 is a block electrode provided as a single piece within each pixel unit or a slit electrode having a plurality of electrode strips, so as to form a fringe field switching (FFS) mode. Of course, in other embodiments, the pixel electrode 22 and the common electrode 21 may be located on the same layer, but are insulated from each other. The pixel electrode 22 and the common electrode 21 may each include a plurality of electrode strips, and the electrode strips of the pixel electrode 22 and the electrode strips of the common electrode 21 are alternately arranged to form an in-plane switching (IPS) mode; or, in other embodiments, the array substrate 20 is provided with the pixel electrode 22 on the side facing the liquid crystal layer 30, and the touch control substrate is provided with the common electrode 21 on the side facing the liquid crystal layer 30, so as to form a TN mode or a VA mode.

[0063] Further, a polarizer (not shown) is further provided on the touch control substrate, and a polarizer (not shown) is further provided on the array substrate 20. The transmission axes of the polarizer and the polarizer are perpendicular to each other.

[0064] In this embodiment, a touch display device is further provided, including the touch display panel as described above and a backlight module 40. The backlight module 40 is disposed below the touch display panel and is used to provide a backlight source for the touch display panel. Among them, the backlight module 40 may be a side-entry backlight module or a direct-lit backlight module. Preferably, the backlight module 40 adopts a collimated backlight (CBL) mode, which can collect light and ensure the display effect.

[0065] Figures 20a - 20d is a schematic structural diagram of the manufacturing process of the touch display panel in the fifth embodiment of the present invention. As Figures 20a - 20d shown, the manufacturing process of the touch display panel in this embodiment is as follows: As Figure 20aAs shown, an array substrate 20 is provided. On the array substrate 20, a plurality of scan lines (not shown in the figure) and a plurality of data lines (not shown in the figure) are insulated and crossed with each other to define a plurality of pixel units. Each pixel unit is provided with a pixel electrode 22 and a thin film transistor (not shown in the figure). The pixel electrode 22 is electrically connected to the data line adjacent to the thin film transistor through the thin film transistor. Among them, the thin film transistor includes a gate, an active layer, a drain, and a source. The gate and the scan line are located on the same layer and are electrically connected. The gate and the active layer are separated by an insulating layer. The source is electrically connected to the data line, and the drain is electrically connected to the pixel electrode 22 through a contact hole. A common electrode 21 is also provided on the array substrate 20. The common electrode 21 and the pixel electrode 22 are located on different layers and are insulated from each other by an insulating layer. The common electrode 21 can be located above or below the pixel electrode 22 ( Figure 20a as shown in the figure, the common electrode 21 is located below the pixel electrode 22). Preferably, the common electrode 21 is a planar electrode provided on the entire surface, and the pixel electrode 22 is a block electrode provided as a whole in each pixel unit or a slit electrode having a plurality of electrode strips to form a Fringe Field Switching (FFS) mode.

[0066] As Figure 20b shown, a touch control substrate as described above is provided. On the front surface of the touch control substrate, there are a touch control driving electrode 111, a touch control sensing electrode 131, an invalid touch control driving electrode 141, an invalid touch control sensing electrode 142, a touch control driving trace 143, a touch control sensing trace 144, a pad 145, a first heating signal line 146, a second heating signal line 147, a ground line 148, etc. The outermost surface of the front surface of the touch control substrate is covered with an acid-resistant film 50 to protect the circuits and electrodes on the front surface of the touch control substrate. On the back surface of the touch control substrate, there are a black matrix 15 and a color resist layer 16. A plurality of color resist layers 16 are arranged in an array and are spaced apart from each other by the black matrix 15. The color resist layer 16 includes color group materials of red (R), green (G), and blue (B) to respectively correspond to pixels of red, green, and blue colors.

[0067] As Figure 20c and Figure 20dAs shown, liquid crystal is provided, and then the array substrate 20, the touch control substrate, and the liquid crystal are made into a touch control display panel through a cell process. Then, the acid-resistant film 50 is torn off, and the pads 145 on the touch control substrate and the array substrate 20 are respectively bonded to a circuit board (FPC). Among them, the liquid crystal preferably uses positive liquid crystal molecules, that is, liquid crystal molecules with positive dielectric anisotropy. In the initial state, the positive liquid crystal molecules in the liquid crystal layer 30 are aligned parallel to the touch control substrate and the array substrate 20, and the alignment directions of the positive liquid crystal molecules on the side close to the touch control substrate and the side close to the array substrate 20 are parallel or antiparallel. Of course, in other embodiments, the liquid crystal layer 30 can also use negative liquid crystal molecules, and the negative liquid crystal molecules in the liquid crystal layer 30 can be aligned perpendicular to the touch control substrate and the array substrate 20, that is, an alignment method similar to the VA display mode.

[0068] Those skilled in the art should understand that the remaining structures and working principles of this embodiment are the same as those of Embodiments 1 to 4, and will not be elaborated here.

[0069] [Embodiment 6] Figure 21 is a schematic structural diagram of the touch control display device in Embodiment 6 of the present invention. As Figure 21 shown, the touch control display panel and the touch control display device provided in Embodiment 6 of the present invention are basically the same as the touch control display panel and the touch control display device in Embodiment 5 (Figure 20). The difference is that in this embodiment: The first metal layer 11 covers the front surface of the transparent conductive layer 12, the first insulating layer 101 covers the front surfaces of the first metal layer 11 and the transparent conductive layer 12, the second metal layer 13 covers the front surface of the first insulating layer 101, and the second insulating layer 102 covers the front surface of the second metal layer 13, that is, the transparent conductive layer 12, the first metal layer 11, the first insulating layer 101, the second metal layer 13, and the second insulating layer 102 are sequentially fabricated on the front surface of the substrate 10.

[0070] Figures 22a - 22d is a schematic structural diagram of the manufacturing process of the touch control display panel in Embodiment 6 of the present invention. As Figures 22a - 22d shown, the manufacturing process of the touch control display panel in this embodiment is as follows: As Figure 22aAs shown, an array substrate 20 is provided. On the array substrate 20, a plurality of scan lines (not shown in the figure) and a plurality of data lines (not shown in the figure) are insulated and cross-defined to form a plurality of pixel units. Each pixel unit is provided with a pixel electrode 22 and a thin film transistor (not shown in the figure). The pixel electrode 22 is electrically connected to the data line adjacent to the thin film transistor through the thin film transistor. Among them, the thin film transistor includes a gate, an active layer, a drain, and a source. The gate and the scan line are located on the same layer and are electrically connected. The gate and the active layer are separated by an insulating layer. The source is electrically connected to the data line, and the drain is electrically connected to the pixel electrode 22 through a contact hole. A common electrode 21 is also provided on the array substrate 20. The common electrode 21 and the pixel electrode 22 are located on different layers and are insulated and isolated by an insulating layer. The common electrode 21 can be located above or below the pixel electrode 22 ( Figure 22a as shown in the figure, the common electrode 21 is located below the pixel electrode 22). Preferably, the common electrode 21 is a planar electrode provided on the entire surface, and the pixel electrode 22 is a block electrode provided as a whole in each pixel unit or a slit electrode having a plurality of electrode strips to form a Fringe Field Switching (FFS) mode.

[0071] As Figure 22b shown, a touch control substrate as described above is provided. First, a transparent conductive layer 12 is fabricated on the front surface of the touch control substrate, while the first metal layer 11, the first insulating layer 101, the second metal layer 13, and the second insulating layer 102 are not fabricated for the time being; and a black matrix 15 and a color resist layer 16 are provided on the back surface of the touch control substrate. A plurality of color resist layers 16 are arranged in an array and are spaced apart from each other by the black matrix 15. The color resist layer 16 includes color group materials of red (R), green (G), and blue (B) to respectively correspond to pixels of red, green, and blue colors.

[0072] As Figure 22c shown, a liquid crystal is provided, and then the array substrate 20, the touch control substrate, and the liquid crystal are fabricated into a touch display panel through a cell assembly process. Among them, the liquid crystal preferably uses positive liquid crystal molecules, that is, liquid crystal molecules with positive dielectric anisotropy. In the initial state, the positive liquid crystal molecules in the liquid crystal layer 30 are aligned parallel to the touch control substrate and the array substrate 20, and the alignment directions of the positive liquid crystal molecules on the side close to the touch control substrate and the side close to the array substrate 20 are parallel or antiparallel. Of course, in other embodiments, the liquid crystal layer 30 can also use negative liquid crystal molecules, and the negative liquid crystal molecules in the liquid crystal layer 30 can be aligned perpendicular to the touch control substrate and the array substrate 20, that is, an alignment method similar to the VA display mode.

[0073] As Figure 22dAs shown, a first metal layer 11, a first insulating layer 101, a second metal layer 13, and a second insulating layer 102 are fabricated on the front surface of the touch control substrate, and a touch control driving electrode 111, a touch control sensing electrode 131, an invalid touch control driving electrode 141, an invalid touch control sensing electrode 142, a touch control driving trace 143, a touch control sensing trace 144, a pad 145, a first heating signal line 146, a second heating signal line 147, and a ground line 148 are formed on the front surface of the touch control substrate. The pad 145 on the touch control substrate and the array substrate 20 are respectively bonded to a circuit board (FPC).

[0074] Since the touch display panel is usually provided by a supplier, the touch control circuit structure part on the front surface of the touch control substrate needs to be fabricated by oneself. The fabrication of the transparent conductive layer 12 requires a high-temperature annealing process. Performing the high-temperature annealing process after the cell process will damage the liquid crystal layer 30. Therefore, when the supplier fabricates the touch display panel, only the transparent conductive layer 12 needs to be fabricated on the front surface of the touch control substrate first, and then this factory fabricates the first metal layer 11, the first insulating layer 101, the second metal layer 13, and the second insulating layer 102 on the front surface of the touch control substrate after cell formation, so as to facilitate the progress of this touch display panel fabrication project.

[0075] Those skilled in the art should understand that the rest of the structure and working principle of this embodiment are the same as those of Embodiment Five, and will not be elaborated here.

[0076] In this article, the orientation terms such as up, down, left, right, front, and back are defined based on the positions of the structures in the drawings and the relative positions of the structures to each other, only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the orientation terms should not limit the scope of protection requested by this application. It should also be understood that the terms "first" and "second" used in this article are only for distinction in name and do not limit the quantity and order.

[0077] The above are only preferred embodiments of the present invention, and do not make any form of limitation to the present invention. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications using the above-disclosed technical content within the scope of the technical solution of the present invention, which are equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A touch substrate, characterized in that: include: A substrate (10); A touch driving electrode (111), a touch sensing electrode (131), an invalid touch driving electrode (141) and an invalid touch sensing electrode (142) are arranged on the front side of the substrate (10); the touch driving electrode (111) and the touch sensing electrode (131) are insulated from each other and arranged crosswise; the invalid touch driving electrode (141) and the touch driving electrode (111) are insulated from each other and arranged alternately in parallel; and the invalid touch sensing electrode (142) and the touch sensing electrode (131) are insulated from each other and arranged alternately in parallel; A touch drive line (143), a touch sensing line (144), a pad (145), a first heating signal line (146) and a second heating signal line (147) are arranged on the front side of the substrate (10); one end of the touch drive line (143), the touch sensing line (144), the first heating signal line (146) and the second heating signal line (147) are respectively connected to the corresponding pad (145); the other end of the touch drive line (143) is connected to the corresponding touch drive electrode (111); the other end of the touch sensing line (144) is connected to the corresponding touch sensing electrode (131); the other ends of the first heating signal line (146) and the second heating signal line (147) are used to apply electrical signals to the invalid touch drive electrode (141) and the invalid touch sensing electrode (142); In the heating mode, the first heating signal line (146) and the second heating signal line (147) are used to apply a heating signal to the invalid touch driving electrode (141) and the invalid touch sensing electrode (142) so as to heat the invalid touch driving electrode (141) and the invalid touch sensing electrode (142); in the static electricity removal mode, the first heating signal line (146) and the second heating signal line (147) are used to apply a grounding signal to the invalid touch driving electrode (141) and the invalid touch sensing electrode (142).

2. The touch substrate according to claim 1, characterized in that: The front surface of the substrate (10) is provided with a first metal layer (11), a transparent conductive layer (12) and a second metal layer (13) located at different layers, the first metal layer (11) and the transparent conductive layer (12) are in contact with each other, and the second metal layer (13) and the first metal layer (11) are spaced apart from each other; The ineffective touch driving electrode (141) comprises an ineffective touch driving metal electrode (112) and an ineffective touch driving transparent electrode (122) which are stacked on each other; the touch driving wire (143) comprises a first touch driving metal wire (113); the pad (145) comprises a metal pad (115) and a transparent pad (125) which are stacked on each other; the touch driving electrode (111), the ineffective touch driving metal electrode (112), the first touch driving metal wire (113) and the metal pad (115) are all made of the first metal layer (11); and the ineffective touch driving transparent electrode (122) and the transparent pad (125) are all made of the transparent conductive layer (12); The invalid touch sensing electrode (142) includes an invalid touch sensing metal electrode (132), the touch sensing trace (144) includes a first touch sensing metal trace (134), and the touch sensing electrode (131), the invalid touch sensing metal electrode (132) and the first touch sensing metal trace (134) are all made of the second metal layer (13).

3. The touch substrate according to claim 2, characterized in that: The touch drive wiring (143) comprises a second touch drive metal wiring (133) which is stacked with the first touch drive metal wiring (113), and the second touch drive metal wiring (133) is made of the second metal layer (13); The touch sensing trace (144) comprises a second touch sensing metal trace (114) which is stacked with the first touch sensing metal trace (134), and the second touch sensing metal trace (114) is made of the first metal layer (11).

4. The touch substrate according to claim 2, characterized in that: The touch drive wiring (143) includes a touch drive transparent wiring (123) which is stacked with the first touch drive metal wiring (113), and the touch sensing wiring (144) includes a touch sensing transparent wiring (124) which is stacked with the first touch sensing metal wiring (134), and both the touch drive transparent wiring (123) and the touch sensing transparent wiring (124) are made of the transparent conductive layer (12).

5. The touch substrate according to claim 2, characterized in that: The first heating signal line (146) includes a first heating metal signal line (116), the second heating signal line (147) includes a second heating metal signal line (117), and the first heating metal signal line (116) and the second heating metal signal line (117) are both made of the first metal layer (11); And / or, the first heating signal line (146) includes a first heating transparent signal line (126), the second heating signal line (147) includes a second heating transparent signal line (127), and the first heating transparent signal line (126) and the second heating transparent signal line (127) are both made of the transparent conductive layer (12); And / or, the first heating signal line (146) includes a third heating metal signal line (136), the second heating signal line (147) includes a fourth heating metal signal line (137), and the third heating metal signal line (136) and the fourth heating metal signal line (137) are both made of the second metal layer (13).

6. The touch substrate according to claim 2, characterized in that: The touch driving electrodes (111), the ineffective touch driving metal electrodes (112), the touch sensing electrodes (131) and the ineffective touch sensing metal electrodes (132) are all in a grid structure; The transparent conductive layer (12) comprises a transparent electrode block (121) located in a mesh of the touch driving electrode (111), the transparent electrode block (121) and the touch driving electrode (111) are insulated and spaced apart from each other, and the transparent electrode block (121) in a region corresponding to the ineffective touch sensing metal electrode (132) is conductively connected to the ineffective touch sensing metal electrode (132).

7. The touch substrate according to claim 1, characterized in that: The ineffective touch driving electrodes (141) and the ineffective touch sensing electrodes (142) are conductively connected in a mutually intersecting region; The first heating signal line (146) and the second heating signal line (147) are both conductively connected to one end of the invalid touch sensing electrode (142); or, the first heating signal line (146) is conductively connected to one end of the invalid touch sensing electrode (142), and the second heating signal line (147) is conductively connected to the other end of the invalid touch sensing electrode (142).

8. The touch control substrate according to any one of claims 1 to 7, characterized in that: A black matrix (15) and a color resist layer (16) are provided on the back side of the substrate (10); a plurality of the color resist layers (16) are distributed in an array and are spaced apart from each other by the black matrix (15).

9. A method for driving a touch substrate, characterized in that: Used to drive the touch control substrate according to any one of claims 1 to 8, the driving method comprising: In a heating mode, a heating signal is applied to the invalid touch driving electrode (141) and the invalid touch sensing electrode (142) through the first heating signal line (146) and the second heating signal line (147), so that the invalid touch driving electrode (141) and the invalid touch sensing electrode (142) generate heat; In the static electricity removal mode, a ground signal is applied to the invalid touch driving electrode (141) and the invalid touch sensing electrode (142) through the first heating signal line (146) and the second heating signal line (147), so that the invalid touch driving electrode (141) and the invalid touch sensing electrode (142) remove static electricity on the touch substrate.

10. A touch display panel, characterized in that: The invention comprises a touch substrate as claimed in any one of claims 1 to 8, an array substrate (20) arranged opposite to the touch substrate, and a liquid crystal layer (30) located between the touch substrate and the array substrate (20), wherein the front side of the touch substrate is arranged away from the side of the liquid crystal layer (30), and the back side of the touch substrate is arranged toward the side of the liquid crystal layer (30).

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