Touch control substrate and display device

Abstract

The present invention provides a touch substrate and a display device, wherein the touch substrate comprises: a substrate and a touch structure layer arranged on the substrate, the touch structure layer comprises a metal grid structure, the metal grid structure comprises a plurality of touch electrodes and a plurality of pressure sensing electrodes insulated from each other, each of the touch electrodes is coupled to a self-capacitive touch detection circuit, a Wheatstone bridge is formed between every two pressure sensing electrodes and then coupled to a pressure touch detection circuit, and the pressure touch detection circuit detects the magnitude of the external force acting on the touch substrate through the Wheatstone bridge. It is used to realize a lightweight design of a touch device while taking into account the touch performance of the touch substrate.

Description

Technical Field

[0001] The present invention relates to the field of touch control technology, and in particular to a touch control substrate and a display device. Background Art

[0002] Electronic devices have penetrated into every aspect of people's lives. Touch devices are now the mainstream information interaction devices for electronic devices due to their simple and direct operation characteristics. With the continuous progress of society, users' requirements for touch devices are also constantly increasing.

[0003] In the prior art, the self-capacitive electrode layer and the pressure touch layer in the touch device are often designed separately, wherein the self-capacitive electrode layer is made on the packaging layer, and the pressure touch layer is made separately and the entire surface or a part of it is attached to the underside of the screen, resulting in a thicker overall thickness of the touch device, a more complicated process flow, and a higher cost. Summary of the invention

[0004] The present invention provides a touch control substrate and a display device, which are used to realize a light and thin design of a touch control device while taking into account the touch control performance of the touch control substrate.

[0005] In a first aspect, an embodiment of the present invention provides a touch control substrate, comprising:

[0006] A substrate and a touch structure layer arranged on the substrate, the touch structure layer includes a metal grid structure, the metal grid structure includes a plurality of touch electrodes and a plurality of pressure sensing electrodes insulated from each other, each of the touch electrodes is coupled to a self-capacitive touch detection circuit, a Wheatstone bridge is formed between every two of the pressure sensing electrodes and then coupled to a pressure touch detection circuit, and the pressure touch detection circuit detects the magnitude of an external force acting on the touch substrate through the Wheatstone bridge.

[0007] In a possible implementation, the pressure touch detection circuit includes a signal collector and a power supply, and the two pressure sensing electrodes constituting the Wheatstone bridge include a first pressure sensing electrode and a second pressure sensing electrode;

[0008] The first end of the first pressure sensing electrode is electrically connected to one end of the signal collector and one electrode end of the power supply respectively;

[0009] The first end of the second pressure sensing electrode is electrically connected to the other end of the signal collector and the other electrode end of the power supply respectively;

[0010] The second end of the first pressure-sensing electrode is electrically connected to the first end of the second pressure-sensing electrode through a first resistor;

[0011] The second end of the second pressure-sensing electrode is electrically connected to the first end of the first pressure-sensing electrode through a second resistor.

[0012] In a possible implementation, the pressure sensing electrodes are arranged in a cross shape.

[0013] In a possible implementation manner, two ends of each of the pressure sensing electrodes are respectively arranged on two opposite sides of the pressure sensing electrode, or are arranged on the same side of the pressure sensing electrode.

[0014] In a possible implementation, each of the pressure sensing electrodes includes a plurality of pressure sensing units that are repeatedly arranged and sequentially coupled along the extension direction, and each of the pressure sensing units is arranged in a "X" shape along the extension direction.

[0015] In a possible implementation manner, two ends of each of the pressure sensing units are respectively arranged on two opposite sides of the pressure sensing unit, or are arranged on the same side of the pressure sensing unit.

[0016] In a possible implementation, each of the pressure sensing units includes at least one comb tooth structure arranged in a comb shape, and each of the comb tooth structures is arranged along an extension direction of the pressure sensing unit, or each of the comb tooth structures is arranged in a direction perpendicular to the extension direction of the pressure sensing unit.

[0017] In a possible implementation manner, the pressure sensing units are arranged in a zigzag pattern along an extension direction of the pressure sensing units, or the pressure sensing units are arranged in a zigzag pattern along a direction perpendicular to the extension direction of the pressure sensing units.

[0018] In a possible implementation, the touch control substrate further includes a display structure layer disposed on the base, the touch control structure layer is disposed on the display structure layer, the display structure layer includes a light-emitting area and a non-light-emitting area, the light-emitting area includes a plurality of periodically arranged sub-pixels, and the non-light-emitting area includes a sub-pixel boundary between adjacent sub-pixels;

[0019] The area enclosed by the orthographic projections of the touch electrode and the pressure-sensing electrode on the substrate includes the orthographic projection of at least one sub-pixel on the substrate, and the orthographic projection of the sub-pixel boundary on the substrate includes the orthographic projections of the touch electrode and the pressure-sensing electrode on the substrate.

[0020] In a second aspect, an embodiment of the present invention further provides a display device, including:

[0021] A touch control substrate as described in any one of the above items.

[0022] The beneficial effects of the present invention are as follows:

[0023] The embodiment of the present invention provides a touch substrate and a display device, wherein the touch substrate includes a substrate and a touch structure layer arranged on the substrate, the touch structure layer includes a metal grid structure, the metal grid structure includes a plurality of touch electrodes and a plurality of pressure-sensing electrodes insulated from each other, each touch electrode is coupled to a self-capacitive touch detection circuit, a Wheatstone bridge is formed between every two pressure-sensing electrodes and then coupled to a pressure touch detection circuit, and the pressure touch detection circuit detects the magnitude of the external force acting on the touch substrate through the Wheatstone bridge. In other words, the metal grid structure constituting the touch structure layer includes a plurality of touch electrodes and a plurality of pressure-sensing electrodes insulated from each other, so that each touch electrode and each pressure-sensing electrode can be arranged in the same layer, thereby ensuring a light and thin design of the touch substrate, and in addition, each touch electrode is coupled to a self-capacitive touch detection circuit, and the self-capacitive touch detection circuit can realize the detection of the two-dimensional coordinate position of the operating body on the two-dimensional plane on the touch substrate, thereby realizing two-dimensional touch detection of the touch substrate. A Wheatstone bridge is formed between every two pressure-sensing electrodes and then coupled to a pressure touch detection circuit. The pressure touch detection circuit can detect the magnitude of the external force acting on the touch substrate through the Wheatstone bridge, thereby realizing three-dimensional touch detection of the touch substrate. In this way, by providing a plurality of mutually insulated touch electrodes and a plurality of pressure-sensing electrodes on the same layer, the touch performance of the touch substrate is taken into account while ensuring a light and thin design of the touch substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of a structure of a touch module in the related art;

[0025] Figure 2 A schematic diagram of a structure of a touch control substrate provided by an embodiment of the present invention;

[0026] Figure 3 for Figure 2 One of the equivalent circuit diagrams of the medium pressure sensing electrode;

[0027] Figure 4 A schematic diagram of a structure of a pressure sensing electrode in a touch control substrate provided by an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of a structure of a touch control substrate provided by an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of a structure of a pressure sensing unit in a pressure sensing electrode in a touch control substrate provided by an embodiment of the present invention;

[0030] Figure 7 A schematic diagram of a structure of a pressure sensing unit in a pressure sensing electrode in a touch control substrate provided by an embodiment of the present invention;

[0031] Figure 8 A schematic diagram of a structure of a pressure sensing unit in a pressure sensing electrode in a touch control substrate provided by an embodiment of the present invention;

[0032] Fig. 9 A schematic diagram of a structure of a pressure sensing unit in a pressure sensing electrode in a touch control substrate provided by an embodiment of the present invention;

[0033] Fig.10 A schematic diagram of a structure of a pressure sensing unit in a pressure sensing electrode in a touch control substrate provided by an embodiment of the present invention;

[0034] Fig.11 A schematic diagram of a structure of a touch control substrate provided by an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 01-self-capacitive electrode layer; 02-packaging layer; 03-pressure touch layer; 1-substrate; 2-touch structure layer; 3-touch electrode; 4-pressure sensing electrode; 5-self-capacitive touch detection circuit; 6-pressure touch detection circuit; 61-signal collector; 62-power supply; 41-first pressure sensing electrode; 42-second pressure sensing electrode; 40-pressure sensing unit; 400-comb tooth structure; 7-display structure layer. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. And in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0038] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the common meanings understood by people with ordinary skills in the field to which the present invention belongs. The words "include" or "comprise" and the like used in the present invention mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.

[0039] It should be noted that the sizes and shapes of the figures in the accompanying drawings do not reflect the actual proportions, but are only intended to illustrate the content of the present invention. The same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0040] In the related art, the touch control device often adopts Figure 1 In the touch module shown, the self-capacitive electrode layer 01 and the pressure touch layer 03 are designed separately and are located in different film layers. For example, the self-capacitive electrode layer 01 is located above the packaging layer 02, and the pressure touch layer 03 is located below the packaging layer 02. The design of other film layers is the same as that in the related art. In this way, the overall thickness of the touch device is thicker.

[0041] In view of this, an embodiment of the present invention provides a touch device and a display device, which are used to achieve a lightweight and thin design of the touch device.

[0042] like Figure 2 FIG. 1 is a schematic diagram of a touch control substrate provided in an embodiment of the present invention. The touch control substrate includes:

[0043] A substrate 1 and a touch structure layer 2 arranged on the substrate 1, the touch structure layer 2 includes a metal grid structure, the metal grid structure includes a plurality of touch electrodes 3 and a plurality of pressure sensing electrodes 4 that are insulated from each other, each of the touch electrodes 3 is coupled to a self-capacitive touch detection circuit 5, a Wheatstone bridge is formed between every two of the pressure sensing electrodes 4, and then coupled to a pressure touch detection circuit 6, and the pressure touch detection circuit 6 detects the magnitude of the external force acting on the touch substrate through the Wheatstone bridge.

[0044] In a specific implementation process, the touch control substrate includes a touch control structure layer 2 arranged on the substrate 1, and the substrate 1 can be a flexible substrate or a rigid substrate, which is not limited here. The touch control structure layer 2 includes a metal grid structure, and the metal grid structure is formed by interweaving a plurality of metal wires. The metal grid includes a plurality of grid patterns, and the grid pattern is a polygon composed of a plurality of metal wires. The metal grid structure is a single-layer structure. The metal grid structure includes a plurality of touch electrodes 3 and a plurality of pressure sensing electrodes 4 that are insulated from each other. The touch electrodes 3 and the pressure sensing electrodes 4 in the form of metal grids have the advantages of low resistance, small thickness and fast response speed. The shape of each of the touch electrodes 3 and each of the pressure sensing electrodes 4 can be as follows: Figure 2 The illustrated case may be other cases described later, thereby realizing the same-layer arrangement of multiple touch electrodes 3 and multiple pressure sensing electrodes 4. The number of the multiple touch electrodes 3 and the number of the multiple pressure sensing electrodes 4 may be equal or unequal, and the number of the multiple touch electrodes 3 and the multiple pressure sensing electrodes 4 may be arranged according to actual application requirements, which is not limited here.

[0045] Each of the touch electrodes 3 and the self-capacitive touch detection circuit 5 is coupled, and can be coupled to the self-capacitive touch detection circuit 5 through a through-type wiring on a different layer from the touch electrode 3. The length of each through-type wiring is roughly equal, which ensures the uniformity of touch control. The self-capacitive touch detection circuit 5 can detect the two-dimensional coordinate position of the operating body such as the user's finger, stylus, etc. on the two-dimensional plane on the touch substrate, thereby realizing the two-dimensional touch detection of the touch substrate. After forming a Wheatstone bridge between each two pressure-sensing electrodes 4, they are coupled to the pressure touch detection circuit 6. The pressure touch detection circuit 6 can detect the size of the external force acting on the touch substrate through the Wheatstone bridge, thereby realizing the three-dimensional touch detection of the touch substrate. Since the metal grid structure constituting the touch structure layer 2 includes a plurality of touch electrodes 3 and a plurality of pressure-sensing electrodes 4 that are insulated from each other, the plurality of touch electrodes 3 and the plurality of pressure-sensing electrodes 4 are arranged on the same layer. In this way, by providing the plurality of touch electrodes 3 and the plurality of pressure-sensing electrodes 4 that are insulated from each other on the same layer, the touch performance of the touch substrate is taken into consideration while ensuring a lightweight design of the touch substrate.

[0046] like Figure 3 Shown Figure 2 One of the equivalent circuit diagrams of the pressure sensing electrode 4, wherein the reference numerals A, B, C and D respectively represent one end of the corresponding pressure sensing electrode, the pressure touch detection circuit 6 includes a signal collector 61 and a power supply 62, and the two pressure sensing electrodes 4 constituting the Wheatstone bridge include a first pressure sensing electrode 41 and a second pressure sensing electrode 42;

[0047] The first end of the first pressure sensing electrode 41 is electrically connected to one end of the signal collector 61 and one electrode end of the power supply 62 respectively;

[0048] The first end of the second pressure sensing electrode 42 is electrically connected to the other end of the signal collector 61 and the other electrode end of the power supply 62 respectively;

[0049] The second end of the first pressure sensing electrode 41 is electrically connected to the first end of the second pressure sensing electrode 42 via a first resistor;

[0050] The second end of the second pressure sensing electrode 42 is electrically connected to the first end of the first pressure sensing electrode 41 through a second resistor.

[0051] The pressure touch detection circuit 6 includes a signal collector 61 and a power supply 62. The power supply 62 is a power supply with a constant potential. The constant potential can be any potential between 3V and 5.5V, for example, 3.3V, and for example, 5V. It can be set according to the actual application situation and is not limited here. The two piezoelectric electrodes constituting the Wheatstone bridge include a first pressure sensing electrode 41 and a second pressure sensing electrode 42. The first end of the first pressure sensing electrode 41 is electrically connected to one end of the signal collector 61 and one electrode end of the power supply 62, respectively. The first end of the second pressure sensing electrode 42 is electrically connected to the other end of the signal collector 61 and the other electrode end of the power supply 62, respectively. For example, when one electrode end of the power supply 62 is positive, the other electrode end of the power supply 62 is negative. For example, when one electrode end of the power supply 62 is negative, the other electrode end of the power supply 62 is positive. After the two electrode ends of the power supply 62 are electrically connected to the two ends of the signal collector 61 respectively, on the one hand, the power supply 62 can ensure the normal operation of the signal collector 61, and on the other hand, the power supply 62 can also provide electrical signals to the first pressure sensing electrode 41 and the second pressure sensing electrode 42, thereby ensuring the touch detection of the touch substrate by the signal collector 61.

[0052] The second end of the first pressure sensing electrode 41 is electrically connected to the first end of the second pressure sensing electrode 42 via a first resistor, and the first resistor is a resistor with a fixed resistance value. The second end of the second pressure sensing electrode 42 is electrically connected to the first end of the first pressure sensing electrode 41 via a second resistor, and the second resistor is a resistor with a fixed resistance value. In addition, since the pressure sensing electrodes can be a metal mesh structure, in this case, each of the first pressure sensing electrodes 41 and each of the second pressure sensing electrodes 42 is still a metal mesh structure, and has a corresponding resistance value. Figure 3 Schematically shows that the resistance corresponding to the first pressure sensing electrode 41 is equivalent to Rx, the resistance corresponding to the second sensing electrode is equivalent to R1, R3 represents the first resistance, and R2 represents the second resistance.

[0053] In the embodiment of the present invention, each of the pressure sensing electrodes 4 can have the following shapes, but is not limited to the following shapes. Figure 2 As shown, the pressure sensing electrodes 4 are arranged in a "X" shape.

[0054] In the embodiment of the present invention, still combined with Figure 2 As shown, the two ends of each pressure sensing electrode 4 are respectively arranged on opposite sides of the pressure sensing electrode 4. The two ends of each pressure sensing electrode 4 can also be arranged on the same side of the pressure sensing electrode 4. Accordingly, the structural schematic diagram of each pressure sensing electrode 4 is as shown in FIG. Figure 4 shown.

[0055] In the embodiment of the present invention, Figure 5 The figure shows a schematic diagram of a structure of a touch substrate. Each of the pressure sensing electrodes 4 includes a plurality of pressure sensing units 40 which are repeatedly arranged and sequentially coupled along the extension direction. Each of the pressure sensing units 40 is arranged in a "X" shape along the extension direction.

[0056] Still combined Figure 5 As shown, the two ends of each pressure sensing unit 40 are respectively arranged on opposite sides of the pressure sensing unit 40. In addition, the two ends of each pressure sensing unit 40 can also be arranged on the same side of the pressure sensing unit 40. Accordingly, the structural schematic diagram of each pressure sensing unit 40 can be as follows: Figure 6 shown.

[0057] In the embodiment of the present invention, each of the pressure sensing units 40 includes at least one comb-tooth structure 400 arranged in a comb shape, and each of the comb-tooth structures 400 is arranged along the extension direction of the pressure sensing unit 40. Figure 7 shown.

[0058] In the embodiment of the present invention, the structural schematic diagram of each of the pressure sensing units 40 can also be as follows: Figure 8 As shown, each of the comb-tooth structures 400 is arranged along a direction perpendicular to the extension direction of the pressure sensing unit 40 .

[0059] In the embodiment of the present invention, each of the pressure sensing units 40 is arranged in a folded line along the extension direction of the pressure sensing unit 40. Accordingly, the structural schematic diagram of each of the pressure sensing units 40 can be as follows: Fig. 9 shown.

[0060] In the embodiment of the present invention, each of the pressure sensing units 40 is arranged in a folded line along a direction perpendicular to the extending direction of the pressure sensing unit 40. Accordingly, the structural schematic diagram of each of the pressure sensing units 40 can be as follows: Fig.10 shown.

[0061] It should be noted that Figure 5 , Figures 7 to 10 In the figure, the extension direction of the pressure sensing unit 40 is shown as the direction indicated by the arrow X in the figure, and the direction perpendicular to the extension direction of the pressure sensing unit 40 is shown as the direction indicated by the arrow Y in the figure.

[0062] In a specific implementation process, the shape of each pressure sensing electrode 4 and the shape of each pressure sensing unit 40 can be set according to the actual needs of the user, which will not be described in detail here.

[0063] like Fig.11The figure shows a schematic diagram of one structure of the touch substrate, wherein the touch substrate further comprises a display structure layer 7 disposed on the substrate 1, the touch structure layer 2 is disposed on the display structure layer 7, the display structure layer 7 comprises a light-emitting area and a non-light-emitting area, the light-emitting area comprises a plurality of periodically arranged sub-pixels, and the non-light-emitting area comprises a sub-pixel boundary between adjacent sub-pixels;

[0064] The area enclosed by the orthographic projections of the touch electrode 3 and the pressure-sensing electrode 4 on the substrate 1 includes the orthographic projection of at least one sub-pixel on the substrate 1 , and the orthographic projection of the sub-pixel boundary on the substrate 1 includes the orthographic projections of the touch electrode 3 and the pressure-sensing electrode 4 on the substrate 1 .

[0065] In a specific implementation process, the display structure layer 7 may be a liquid crystal display (LCD) structure layer, an organic light-emitting diode (OLED) structure layer, a plasma display panel (PDP) structure layer, or an electrophoretic display (EPD) structure layer. When the display structure layer 7 is an OLED structure layer, the OLED structure layer includes a substrate, a driving circuit layer disposed on the substrate, a light-emitting structure layer disposed on the driving circuit layer, and an encapsulation layer disposed on the light-emitting structure layer, and the touch structure layer 2 is disposed on the encapsulation layer of the display structure layer 7.

[0066] The metal grid structure includes a plurality of grid patterns. In one grid pattern, the area surrounded by the metal wires includes the sub-pixel area in the display structure layer 7, and the metal wires are located between adjacent sub-pixels. For example, when the display structure layer 7 is an OLED display structure layer, the sub-pixel area is the light-emitting area defined by the pixel definition layer in the light-emitting structure layer, the area surrounded by the metal wires includes the light-emitting area, and the metal wires are located at the corresponding position of the pixel definition layer, that is, in the non-light-emitting area. The grid pattern is a polygon composed of metal wires, or in other words, the metal grid is formed by repeating and continuously setting the grid pattern. The polygon can be at least one of a rhombus, a triangle, a rectangle, a pentagon and a hexagon, which can be set according to the actual application and is not limited here.

[0067] The light-emitting area includes a plurality of periodically arranged sub-pixels, each of which may be a red sub-pixel, a green sub-pixel, a blue sub-pixel, or a white sub-pixel, which is not limited here. Each light-emitting area corresponds to a sub-pixel, and a sub-pixel boundary corresponds to a non-light-emitting area.

[0068] Based on the same inventive concept, an embodiment of the present invention further provides a display device, which includes any of the above-mentioned touch control substrates.

[0069] Specifically, the display device may be an OLED display device, which may be applied to display devices such as tablet computers and mobile phones. The display device may be an FMLOC display device, which has a high degree of integration and is relatively thin and light.

[0070] It should be noted that the touch substrate and the display device in the embodiment of the present invention may also include other structures, which may be determined according to actual needs and are not limited here.

[0071] In addition, the principle of solving the problem of the display device is similar to that of the aforementioned touch substrate, so the implementation of the display device can refer to the implementation of the aforementioned touch substrate, and the repeated parts will not be repeated.

[0072] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0073] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A touch substrate, characterized in that: include: A substrate and a touch structure layer arranged on the substrate, the touch structure layer comprising a metal grid structure, the metal grid structure comprising a plurality of touch electrodes and a plurality of pressure sensing electrodes insulated from each other, each of the touch electrodes being coupled to a self-capacitive touch detection circuit, a Wheatstone bridge being formed between every two of the pressure sensing electrodes and then coupled to a pressure touch detection circuit, and the pressure touch detection circuit detecting the magnitude of an external force acting on the touch substrate through the Wheatstone bridge; Wherein, the pressure touch detection circuit includes a signal collector and a power supply, the two pressure sensing electrodes constituting the Wheatstone bridge include a first pressure sensing electrode and a second pressure sensing electrode, and the power supply is a constant potential power supply; The first end of the first pressure sensing electrode is electrically connected to one end of the signal collector and one electrode end of the power supply respectively; The first end of the second pressure sensing electrode is electrically connected to the other end of the signal collector and the other electrode end of the power supply respectively; The second end of the first pressure sensing electrode is electrically connected to the first end of the second pressure sensing electrode via a first resistor, and the first resistor is a resistor with a fixed resistance; The second end of the second pressure sensing electrode is electrically connected to the first end of the first pressure sensing electrode via a second resistor, and the second resistor is a resistor with a fixed resistance; The touch control substrate further includes a display structure layer disposed on the base, and the touch control structure layer is located on a side of the display structure layer away from the base.

2. The touch substrate according to claim 1, wherein: The pressure sensing electrodes are arranged in a "X" shape.

3. The touch substrate according to claim 2, wherein: Two ends of each of the pressure sensing electrodes are respectively arranged on two opposite sides of the pressure sensing electrode, or are arranged on the same side of the pressure sensing electrode.

4. The touch substrate according to claim 1, wherein: Each of the pressure sensing electrodes includes a plurality of pressure sensing units which are repeatedly arranged and sequentially coupled along the extension direction, and each of the pressure sensing units is arranged in a "X" shape along the extension direction.

5. The touch substrate according to claim 4, characterized in that: The two ends of each of the pressure sensing units are respectively arranged on two opposite sides of the pressure sensing unit, or are arranged on the same side of the pressure sensing unit.

6. The touch substrate according to claim 5, wherein: Each of the pressure sensing units includes at least one comb tooth structure arranged in a comb shape, and each of the comb tooth structures is arranged along an extension direction of the pressure sensing unit, or each of the comb tooth structures is arranged along a direction perpendicular to the extension direction of the pressure sensing unit.

7. The touch substrate according to claim 5, wherein: The pressure sensing units are arranged in a zigzag pattern along an extension direction of the pressure sensing units, or the pressure sensing units are arranged in a zigzag pattern along a direction perpendicular to the extension direction of the pressure sensing units.

8. The touch control substrate according to any one of claims 1 to 7, characterized in that: The display structure layer includes a light-emitting area and a non-light-emitting area, the light-emitting area includes a plurality of periodically arranged sub-pixels, and the non-light-emitting area includes a sub-pixel boundary between adjacent sub-pixels; The area enclosed by the orthographic projections of the touch electrode and the pressure-sensing electrode on the substrate includes the orthographic projection of at least one sub-pixel on the substrate, and the orthographic projection of the sub-pixel boundary on the substrate includes the orthographic projections of the touch electrode and the pressure-sensing electrode on the substrate.

9. A display device, characterized in that: include: A touch substrate as claimed in any one of claims 1 to 8.

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