Display panel, driving method thereof, and display device

Abstract

SOLUTION: To disclose a display panel, a driving method thereof, and a display device in the present application, where the display panel includes: a plurality of touch units each including a plurality of touch electrodes arranged along a first direction, the plurality of touch units being arranged along a second direction, and the first direction intersecting the second direction; and a light emitting device including a first electrode multiplexed as the touch electrode, in the display device, when touch driving voltage is applied to an i-th touch unit, first voltage is applied to at least one adjacent touch unit of the i-th touch unit, and the first voltage is less than the touch driving voltage.EFFECT: According to the embodiments of the present disclosure, the performance of a display product can be improved.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present application relates to the field of display technology, and more particularly to a display panel, a driving method thereof, and a display device. [Background technology]

[0002] Flat panel displays based on technologies such as organic light emitting diodes (OLEDs) and light emitting diodes (LEDs) have advantages such as high image quality, low power consumption, slim body size, and a wide range of applications, and are therefore widely used as the primary display device in various consumer electronic products such as mobile phones, televisions, laptops, and desktop computers.

[0003] However, there is a need to improve the performance of current OLED display products. Summary of the Invention [Problem to be solved by the invention]

[0004] The embodiments of the present application provide a display panel, a driving method thereof, a driving timing thereof, and a display device, which can improve the performance of display products. [Means for solving the problem]

[0005] In a first aspect, an embodiment of the present application includes a touch unit and a light-emitting device, wherein the touch unit includes a plurality of touch electrodes arranged along a first direction, and the plurality of touch units are arranged in a second direction, and the first direction and the second direction intersect; and the light-emitting device includes a first electrode multiplexed as a touch electrode, and when the i-th touch unit is applied to a touch driving voltage, at least one adjacent touch unit of the i-th touch unit is applied to a first voltage, and the first voltage is smaller than the touch driving voltage to provide a display panel.

[0006] In one possible embodiment of the first aspect, when the i-th touch unit is applied to a touch drive voltage, a non-adjacent touch unit of the i-th touch unit is applied to a first power supply voltage, the first voltage being greater than the first power supply voltage, and optionally the first voltage being greater than 0V.

[0007] In one possible embodiment of the first aspect, a difference between the touch drive voltage and the first voltage is a first difference, a difference between the first voltage and the first power supply voltage is a second difference, and an absolute value of the first difference is less than an absolute value of the second difference.

[0008] In one possible embodiment of the first aspect, the display panel further includes a gate circuit, an output terminal of the gate circuit is connected to the touch unit, a first input terminal of the gate circuit is applied to a touch driving voltage, and a second input terminal of the gate circuit is applied to a first voltage; Optionally, the first input terminal of the gate circuit is applied to the touch driving voltage and the first power supply voltage in a time-division manner; Optionally, the gate circuit includes a first transistor and a second transistor, a first pole of the first transistor and a first pole of the second transistor connected together to form an output terminal of the gate circuit, a second pole of the first transistor to form a first input terminal of the gate circuit, and a second pole of the second transistor to form a second input terminal of the gate circuit.

[0009] In one possible embodiment of the first aspect, the display panel includes a first operating state and a second operating state, and the magnitude of the first voltage in the first operating state and the second operating state is different; Optionally, the magnitude of the touch drive voltage in the first operating condition and the second operating condition is the same.

[0010] In one possible embodiment of the first aspect, a voltage difference between the touch drive voltage and the first voltage in a first operating state is ΔV21, a voltage difference between the touch drive voltage and the first voltage in a second operating state is ΔV22, and a refresh frequency of the display panel in the first operating state is greater than a refresh frequency of the display panel in the second operating state, where |ΔV21|<|ΔV22|.

[0011] In one possible embodiment of the first aspect, the display panel further includes a pixel circuit, the pixel circuit is connected to the light-emitting device, and the pixel circuit is input to a light-emitting control signal for controlling whether the light-emitting device emits light; When the i-th touch unit is applied with a touch driving voltage, the light-emitting control signal applied to the pixel circuit connected to the i-th touch unit is at an off level; Optionally, when the adjacent touch unit of the i-th touch unit is applied to a first voltage, the light-emitting control signal applied to the pixel circuit connected to the adjacent touch unit of the i-th touch unit is at an off level; Optionally, when the adjacent touch unit of the i-th touch unit is applied to a first voltage, the light-emitting control signal applied to the pixel circuit connected to the non-adjacent touch unit of the i-th touch unit is at an on level.

[0012] Based on the same inventive idea, in a second aspect, the embodiments of the present application include: A touch unit including a plurality of touch electrodes arranged along a first direction, the plurality of touch units being arranged in a second direction, the first direction and the second direction intersecting; a light emitting device including a first electrode multiplexed as a touch electrode; When a touch driving voltage is applied to the i-th touch unit, a first voltage is applied to one adjacent touch unit of the i-th touch unit, and a second voltage is applied to another adjacent touch unit of the i-th touch unit; Here, the first voltage is lower than a touch driving voltage, and the second voltage is lower than the touch driving voltage.

[0013] Optionally, when a touch driving voltage is applied to the i-th touch unit, a first power supply voltage is applied to a non-adjacent touch unit of the i-th touch unit, the first voltage being greater than the first power supply voltage, and the second voltage being greater than the first power supply voltage.

[0014] Based on the same inventive idea, in a third aspect, the embodiments of the present application include: a substrate and a light-emitting device; the light-emitting devices are located on one side of the substrate and include first electrodes, the first electrodes of different light-emitting devices are isolated by isolation structures, and the first electrodes are multiplexed as touch electrodes; A plurality of touch electrodes arranged in a first direction constitute one touch unit, and a plurality of touch units are arranged in a second direction, and the first direction and the second direction intersect; When a touch driving voltage is applied to the i-th touch unit, a first voltage is applied to at least one adjacent touch unit of the i-th touch unit, where i is a positive integer; Here, the first voltage is smaller than the touch driving voltage.

[0015] Based on the same inventive idea, in a fourth aspect, an embodiment of the present application further provides a display device comprising the display panel according to any one of the embodiments of the first, second or third aspect.

[0016] In one possible embodiment of the fourth aspect, the display device further includes a driver chip for providing a touch drive voltage and a first voltage; Optionally, the driver chip includes a first type of pin for providing a touch drive voltage and a second type of pin for providing the first voltage; Optionally, the first type of pin is used to provide a touch drive voltage or a first power supply voltage in a time-multiplexed manner.

[0017] Based on the same inventive idea, in a fifth aspect, the embodiments of the present application include: A touch unit including a plurality of touch electrodes arranged along a first direction, the plurality of touch units being arranged in a second direction, the first direction and the second direction intersecting; a light-emitting device including a first electrode multiplexed as a touch electrode, When providing the touch driving voltage to the i-th touch unit, providing a first voltage to at least one adjacent touch unit of the i-th touch unit; Wherein the first voltage is lower than the touch driving voltage, Optionally, the method further provides a display panel driving method, wherein when providing a touch driving voltage for the i-th touch unit, a first power supply voltage is provided for a non-adjacent touch unit of the i-th touch unit, and the first voltage is greater than the first power supply voltage.

[0018] Based on the same inventive idea, in a sixth aspect, the embodiments of the present application include: A driving timing for driving the display panel according to any one of the embodiments of the first aspect, In a touch scanning step of the i-th touch unit, the time division multiplexing control signal of the i-th touch unit is at an off level, and inputting a touch driving voltage to the touch electrode of the i-th touch unit; The time division multiplexed control signal of the adjacent touch unit of the i-th touch unit is at an off level, and inputting a first voltage to the touch electrode of the adjacent touch unit of the i-th touch unit; the first voltage is less than the touch drive voltage; Optionally, in the touch scanning stage of the i-th touch unit, the time division multiplexing control signal of the non-adjacent touch unit of the i-th touch unit is at an on level, and input a first power supply voltage to the touch electrode of the non-adjacent touch unit of the i-th touch unit, and the first voltage further provides a driving timing greater than the first power supply voltage.

[0019] In one possible embodiment of the sixth aspect, the display panel includes a first operating state and a second operating state; The driving timing further includes that the magnitude of the first voltage output in the first operating state is different from that in the second operating state; Optionally, the magnitude of the touch drive voltage output in the first operating condition and the second operating condition is the same; Optionally, a voltage difference between the touch driving voltage output in the first operating state and the first voltage is ΔV21, a voltage difference between the touch driving voltage output in the second operating state and the first voltage is ΔV22, and if the refresh frequency of the display panel in the first operating state is greater than the refresh frequency of the display panel in the second operating state, then |ΔV21|<|ΔV22|. [Effects of the Invention]

[0020] According to the display panel, driving method, driving timing and display device of the embodiments of the present application, when a touch driving voltage is applied to an i-th touch unit, a first voltage is applied to an adjacent touch unit of the i-th touch unit, and the first voltage is smaller than the touch driving voltage. Therefore, the embodiments of the present application are advantageous in reducing the pressure difference between the i-th touch unit currently being scanned and its adjacent touch unit, so that the i-th touch unit currently being scanned is in a stable pressure difference environment and the risk of breakdown of the i-th touch unit currently being scanned is reduced, thereby improving the touch effect, reducing the possibility of failure of the display panel and improving the performance of the display panel. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a schematic plan view of a display panel according to an embodiment of the present application; [Figure 2] 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present application; [Figure 3] 1 shows a timing diagram of a display panel according to an embodiment of the present application; [Figure 4] 10 is a schematic plan view of another display panel according to an embodiment of the present application; [Figure 5] 1 shows a structural schematic diagram of a pixel circuit in a display panel according to an embodiment of the present application. [Figure 6] 10 is a schematic plan view of another display panel according to an embodiment of the present application; [Figure 7] 1 is a structural schematic diagram of a display device according to an embodiment of the present application; [Figure 8] 1 is a flowchart of a display panel driving method according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0022] The above description is only a summary of the technical solution of the present application. In order to more clearly understand the technical solution of the present application, specific embodiments of the present application are listed below, which can be implemented according to the content of the specification, and to facilitate a clearer understanding of the above and other objectives, features and advantages of the present application.

[0023] Other features, objects and advantages of the present application will become more apparent from the detailed description given below of non-limiting examples with reference to the drawings, in which the same or similar reference numerals refer to the same or similar features and the drawings are not drawn to scale.

[0024] The features and exemplary embodiments of each aspect of the present application will be described in detail below. In order to make the objectives, technical solutions, and advantages of the present application more clearly understood, the present application will be further described in detail below with reference to drawings and specific examples. It should be understood that the specific examples described herein are merely configured to interpret the present application, and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the examples is provided merely to illustrate examples of the present application and to better understand the present application.

[0025] It should be noted that, in this specification, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another and do not necessarily require or imply that such an actual relationship or order exists between those entities or operations. Furthermore, the terms "comprises," "having," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or device that includes a set of elements not only includes those elements, but also other elements not expressly listed or that are inherent in such process, method, article, or device. Absent more limitations, elements defined by the phrase "comprises" do not exclude the presence of other identical elements in a process, method, article, or device that includes the elements.

[0026] When describing the structure of a component, a reference to a layer or region being "on" or "above" another layer or region should be understood to refer to being directly on top of the other layer or region, or to including other layers or regions between it and the other layer or region. When the component is inverted, the layer or region would then be "below" or "underneath" the other layer or region.

[0027] It should be understood that the term "and / or" used herein is merely a relational relationship describing related objects and indicates that three relationships may exist, for example, A and / or B may indicate three situations: A exists alone, A and B exist simultaneously, and B exists alone. Also, the character " / " in this specification generally indicates that the related objects before and after it are in an "or" relationship.

[0028] It should be noted that when an element is described as being "connected" or "electrically connected" to another element, it may be directly connected to the other element, or there may be one or more intermediate elements in between.

[0029] It will be apparent to those skilled in the art that various modifications and variations can be made in this application without departing from the spirit or scope of this application. Therefore, this application is intended to cover the modifications and variations of this application that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. In addition, the embodiments provided in the examples of this application can be combined with each other unless they are inconsistent.

[0030] With the development of display technology, in-cell touch (in-plane) technology has been developed, in which a touch layer can be disposed within a packaging layer. In the touch scanning stage, the rows of touch electrodes can be scanned to identify the touch position. However, in the related technology, the voltage difference between the currently scanned row and the non-scanned row is large, and due to the accumulation of electrostatic signals, electrostatic breakdown is very likely to occur between the scanning touch electrode and the non-scanning touch electrode, resulting in the loss of the touch identification function of the product.

[0031] In order to solve the above technical problems, the embodiments of the present application provide a display panel, a driving method thereof, and a display device. Hereinafter, each embodiment of the present application will be described with reference to the accompanying drawings.

[0032] Referring to FIGS. 1 and 2, a display panel 100 according to an embodiment of the present application includes a touch unit 10 and a light-emitting device 20. As shown in FIG.

[0033] The touch unit 10 includes a plurality of touch electrodes 11 arranged along a first direction X, and the plurality of touch units 10 are arranged in a second direction Y, where the first direction X and the second direction Y intersect.

[0034] For example, the first direction X may be a row direction, and the second direction Y may be a column direction, and a plurality of touch electrodes 11 arranged in one row may be connected to each other to form one touch unit 10. When performing touch recognition, the touch units may be sequentially scanned. When scanning the touch units, a touch driving voltage is applied to all of the plurality of touch electrodes in the touch unit.

[0035] For example, m touch units 10 are arranged in the second direction Y, and the first touch unit 10(1) to the mth touch unit 10(m) can be referred to as the first row touch unit 10(1) to the mth row touch unit 10(m). When performing touch identification, touch driving voltages can be sequentially provided to the first row touch unit 10(1) to the mth row touch unit 10(m), thereby performing touch scanning row by row. The row direction and column direction may be interchanged.

[0036] The light emitting device 20 includes a first electrode 21 multiplexed as the touch electrode 11 .

[0037] The light emitting devices 20 are arranged in an array in a first direction X and a second direction Y. Taking the first direction X as the row direction as an example, for example, the number of rows of the light emitting devices 20 is equal to the number of rows of the touch unit 10, in which case the first electrodes 21 of the plurality of light emitting devices 20 in one row are multiplexed as one row of touch electrodes 11. For another example, the number of rows of the light emitting devices 20 is greater than the number of rows of the touch unit 10, in which case the first electrodes 21 of the plurality of rows of the light emitting devices 20 are multiplexed as one row of touch electrodes 11.

[0038] When a touch driving voltage is applied to the i-th touch unit 10(i), a first voltage lower than the touch driving voltage is applied to at least one adjacent touch unit 10 of the i-th touch unit 10(i).

[0039] In the embodiments of the present application, it is advantageous to reduce the pressure difference between the i-th touch unit currently being scanned and its adjacent touch unit, so that the i-th touch unit currently being scanned is in a stable pressure difference environment, and the risk of the i-th touch unit currently being scanned yielding is reduced, thereby improving the touch effect, reducing the possibility of failure of the display panel, and improving the performance of the display panel.

[0040] For example, when a touch driving voltage is applied to the i-th touch unit 10(i), a first power supply voltage is applied to a non-adjacent touch unit of the i-th touch unit 10(i), and the first voltage is greater than the first power supply voltage.

[0041] The i-th touch unit 10(i) may be any one of the first touch unit 10(1) to the m-th touch unit 10(m).

[0042] When i=1, the adjacent touch units 10 of the first touch unit 10(1) include the second touch unit 10(2), and the non-adjacent touch units 10 of the first touch unit 10(1) include the third touch unit 10(3) to the mth touch unit 10(m).

[0043] When i=2, the adjacent touch units 10 of the second touch unit 10(2) include the first touch unit 10(1) and the third touch unit 10(3), and the non-adjacent touch units 10 of the second touch unit 10(2) include the fourth touch unit 10(4) to the mth touch unit 10(m).

[0044] Similarly, when i=m, the adjacent touch units 10 of the mth touch unit 10(m) include the m-1th touch unit 10(m-1), and the non-adjacent touch units 10 of the mth touch unit 10(m) include the first touch unit 10(1) to the m-2th touch unit 10(m-2).

[0045] For example, as shown in Figure 3, when performing touch recognition, the first touch unit 10(1) to the mth touch unit 10(m) can be scanned sequentially. In Figure 3, V1 represents the touch driving voltage, V2 represents the first voltage, and VSS represents the first power supply voltage.

[0046] 3, when performing touch scanning on the first touch unit 10(1), the driving chip may provide a touch driving voltage to the first touch unit 10(1), and a touch driving voltage V1 may be applied to the first touch unit 10(1). At the same time, a first voltage V2 is applied to the second touch unit 10(2) adjacent to the first touch unit 10(1), and a first power supply voltage VSS is applied to the third touch unit 10(3) to the mth touch unit 10(m) not adjacent to the first touch unit 10(1).

[0047] When performing touch scanning on the second touch unit 10(1), the driver chip may provide a touch driving voltage to the second touch unit 10(2), and the touch driving voltage V1 may be applied to the second touch unit 10(2). At the same time, the first voltage V2 is applied to the first touch unit 10(1) and the third touch unit 10(3) adjacent to the second touch unit 10(2), and the first power supply voltage VSS is applied to the fourth touch unit 10(4) to the mth touch unit 10(m) non-adjacent to the second touch unit 10(2).

[0048] When touch scanning the m-th touch unit 10(m), the driving chip may provide a touch driving voltage for the m-th touch unit 10(m), and the touch driving voltage V1 may be applied to the m-th touch unit 10(m). At the same time, the first voltage V2 is applied to the m-1-th touch unit 10(m-1) adjacent to the m-th touch unit 10(m), and the first power supply voltage VSS is applied to the first touch unit 10(1) to the m-2-th touch unit 10(m-2) non-adjacent to the m-th touch unit 10(m).

[0049] According to the display panel of the embodiment of the present application, when a touch driving voltage is applied to the i-th touch unit 10(i), a first voltage is applied to at least one adjacent touch unit 10 of the i-th touch unit 10(i), the first voltage is between the touch driving voltage and the first power supply voltage, and the adjacent touch unit 10 of the i-th touch unit 10(i) is applied to the first power supply voltage. In contrast, the embodiment of the present application reduces the pressure difference between the currently scanned i-th touch unit 10(i) and its adjacent touch unit, so that the currently scanned i-th touch unit 10(i) is in a stable pressure difference environment and reduces the risk of breakdown of the currently scanned i-th touch unit 10(i), thereby improving the touch effect, reducing the possibility of failure of the display panel, and improving the performance of the display panel.

[0050] 2 , the light-emitting device 20 further includes a light-emitting layer 22 and a second electrode 23, and the first electrode 21, the light-emitting layer 22, and the second electrode 23 may be stacked. Exemplarily, the first electrode 21 may be a cathode, and the second electrode 23 may be an anode. The first electrodes 21 of at least some different light-emitting devices 20 may be located separately from each other, and thus, the first electrodes 21 of different light-emitting devices 20 may be multiplexed as touch electrodes 11 in different touch units 10.

[0051] 2, the display panel may include a substrate 01, and the light-emitting device 20 may be located on one side of the substrate 01. The substrate 01 may include a pixel circuit 30. The pixel circuit 30 is connected to the second electrode 23 of the light-emitting device 20 to drive the light-emitting device 20 to emit light.

[0052] The display panel may further include a pixel restricting portion 41 and an isolation structure 42. The pixel restricting portion 41 includes a pixel opening, and the light-emitting layer 22 may be provided within the pixel opening.

[0053] The first electrodes 21 of different light-emitting devices 20 may be separated from each other by the isolation structure 42. For example, the isolation structure 42 may include a first isolation portion 421 and a second isolation portion 422.

[0054] For example, the first isolation portion 421 and the second isolation portion 422 may be insulating portions. The first electrode 21 overlaps the first isolation portion 421.

[0055] It should be noted that the manner in which the first electrodes 21 of the light-emitting device 20 shown in FIG. 2 are cut from each other is merely an example, and the structure shown in FIG. 2 is not intended to limit the present application.

[0056] For example, Patent PCT / CN2023 / 134518, Patent 202310759370.2, Patent 202310740412.8, Patent 202310707209.0 and Patent 202311346196.5 disclose relevant technical solutions of isolation structures for reference.

[0057] In some embodiments, the first electrode 21 may be a cathode, and the second electrode 23 may be an anode. During display, the first power supply voltage applied to the first electrode 21 may be a negative voltage or 0V. During touch scanning, the first electrode 21 is multiplexed as a touch electrode, and the touch drive voltage applied to the touch electrode is a positive voltage. In this case, the touch drive voltage is greater than the first voltage, which is greater than the first power supply voltage. In this way, by setting the first voltage between the touch drive voltage and the first power supply voltage, the pressure difference between the currently scanned touch unit and its adjacent touch unit is reduced.

[0058] Optionally, if the first power supply voltage is a negative voltage, the first voltage may be greater than 0V.

[0059] Of course, in other examples, the touch drive voltage may be lower than the first voltage, and the first voltage may be lower than the first power supply voltage, and thus the first voltage may also be between the touch drive voltage and the first power supply voltage.

[0060] In some embodiments, the difference between the touch drive voltage and the first voltage is a first difference, the difference between the first voltage and the first power supply voltage is a second difference, and the absolute value of the first difference is smaller than the absolute value of the second difference. In this way, the first voltage is closer to the touch drive voltage, which reduces the pressure difference between the currently scanned touch unit and its adjacent touch units, which is more beneficial to reducing the risk of breakdown of the currently scanned touch unit and better protecting the currently scanned touch unit.

[0061] It can be understood that when the currently scanned touch unit performs a touch identification operation, its conduction with its adjacent touch unit is considered to have not yet performed a touch identification operation. Therefore, when a first voltage is applied to the adjacent touch unit of the currently scanned touch unit, and the first voltage is relatively close to the touch voltage, the pressure difference between the touch unit to which the first voltage is applied and the touch unit to which the first power supply voltage is applied is greater than the pressure difference between the touch unit to which the first voltage is applied and the touch unit to which the touch driving voltage is applied, but because the touch unit to which the first voltage is applied has not yet performed a touch identification operation, it does not affect the touch identification effect.

[0062] In some embodiments, as shown in FIG. 4, the display panel may further include a gate circuit 50 having one output terminal and two input terminals, where the output terminal of the gate circuit 50 is connected to the touch unit 10, a touch driving voltage V1 is applied to a first input terminal of the gate circuit 50, and a first voltage V2 is applied to a second input terminal of the gate circuit 50.

[0063] When the first input terminal and the output terminal of the gate circuit 50 are conductive, the touch driving voltage V1 is transmitted to the touch unit 10, so that the touch driving voltage V1 is applied to the touch unit 10. When the second input terminal and the output terminal of the gate circuit 50 are conductive, the first voltage V2 is transmitted to the touch unit 10, so that the first voltage V2 is applied to the touch unit 10.

[0064] It can be understood that for one touch unit, the touch driving voltage, the first voltage and the first power supply voltage need to be applied in a time-division manner. If the touch unit is the touch unit of the current touch scanning, the touch driving voltage is applied; if the touch unit is the adjacent touch unit of the current touch scanning, the first voltage is applied; if the touch unit is the non-adjacent touch unit of the current touch scanning, the first power supply voltage is applied.

[0065] In the embodiment of the present application, by providing a gate circuit, it is possible to easily control so that different voltage signals are applied to the touch unit in a time-division manner.

[0066] For example, the gate circuit 50 and the touch unit 10 may be installed in one-to-one correspondence. The output terminal of the gate circuit 50 may be connected to the touch unit 10 by a connecting line. The input terminal of the gate circuit 50 is electrically connected to a pin of the driver chip. Here, the first input terminal and the second input terminal of the gate circuit 50 may be connected to different pins, that is, the touch driving voltage and the first voltage may be provided by different pins.

[0067] Optionally, the touch driving voltage V1 and the first power supply voltage VSS are applied to the first input terminal of the gate circuit 50 in a time-division multiplexing manner, in this way, the first input terminal of the gate circuit 50 is time-division multiplexed, which simplifies the structure of the display panel. In addition, the pin of the driver chip connected to the first input terminal of the gate circuit 50 can provide the touch driving voltage V1 and the first power supply voltage VSS in a time-division multiplexing manner.

[0068] Of course, in other examples, the input terminals of the gate circuit 50 may not be time-division multiplexed. For example, the gate circuit 50 may further include a third input terminal, to which the first power supply voltage is applied.

[0069] As an example, the touch drive voltage, the first voltage and the first power supply voltage may be provided by the same drive chip.

[0070] As another example, the touch drive voltage, the first voltage, and the first power supply voltage may be provided by different drive chips, for example, the touch drive voltage and the first voltage are provided by one drive chip, and the first power supply voltage is provided by another drive chip.

[0071] For example, as shown in FIG. 4 , the gate circuit 50 may include a first transistor T1 and a second transistor T2, where a first pole of the first transistor T1 and a first pole of the second transistor T2 are connected to each other and serve as an output terminal of the gate circuit 50, a second pole of the first transistor T1 is connected to a first input terminal of the gate circuit 50, and a second pole of the second transistor T2 is connected to a second input terminal of the gate circuit 50.

[0072] When scanning the i-th touch unit, the first transistor T1 connected to the i-th touch unit is turned on and the second transistor T2 connected to the i-th touch unit is turned off, so that the touch driving voltage is applied to the i-th touch unit. At the same time, the first transistor T1 connected to the touch unit adjacent to the i-th touch unit is turned off and the second transistor T2 connected to the touch unit adjacent to the i-th touch unit is turned on, so that the first voltage is applied to the touch unit adjacent to the i-th touch unit. In addition, when the touch driving voltage V1 and the first power supply voltage VSS are applied to the first input terminal of the gate circuit 50 in a time-division manner, when scanning the i-th touch unit, the first transistor T1 connected to the non-adjacent touch unit of the i-th touch unit is turned on and the first power supply voltage VSS is applied to the second terminal of the first transistor T1, so that the second transistor T2 connected to the non-adjacent touch unit of the i-th touch unit is turned off, so that the first power supply voltage is applied to the non-adjacent touch unit of the i-th touch unit.

[0073] With the development of display technology, the functions of display panels are becoming more and more diverse, and the operating conditions of such display panels are also becoming more diverse. For example, a display panel can support operating conditions of multiple refresh frequencies and multiple brightness modes. However, different operating conditions result in different environments for the touch unit.

[0074] In some embodiments, the display panel may include a first operating state and a second operating state, and the magnitude of the first voltage may be different between the first operating state and the second operating state, so that the magnitude of the first voltage can be flexibly set according to the environment in which the touch unit is located in different operating states, and the touch effect in different operating states can be flexibly adjusted.

[0075] Optionally, the magnitude of the touch drive voltage in the first operating condition and the second operating condition may be the same, which is advantageous in simplifying the drive timing by providing the same magnitude of the touch drive voltage in different operating conditions and adjusting only the magnitude of the first voltage.

[0076] Optionally, the magnitude of the first power supply voltage in the first operating state and the second operating state can be set according to actual needs. For example, the magnitude of the first power supply voltage in the first operating state and the second operating state may be the same from the viewpoint of simplifying the driving timing. Also, for example, the magnitude of the first power supply voltage in the first operating state and the second operating state may be different from the magnitude of the first power supply voltage in the second operating state from the viewpoint of optimizing the display effect or power consumption in different operating states.

[0077] In some embodiments, the different operating conditions may include operating conditions with different refresh frequencies. For example, the refresh frequency of the display panel in a first operating condition is different from the refresh frequency of the display panel in a second operating condition. Here, the refresh frequency may be the refresh frequency of the display screen or the refresh frequency of touch scanning. The higher the refresh frequency, the shorter the time required for one frame. When the i-th touch unit is touch-scanned, a touch driving voltage needs to be applied to the i-th touch unit. After that, when the i+1-th touch unit is touch-scanned, a first voltage needs to be applied to the i-th touch unit. The higher the refresh frequency, the shorter the time it takes for the i-th touch unit to change from the touch driving voltage to the first voltage.

[0078] For example, if the voltage difference between the touch driving voltage and the first voltage in a first operating state is ΔV21, the voltage difference between the touch driving voltage and the first voltage in a second operating state is ΔV22, and the refresh frequency of the display panel in the first operating state is greater than the refresh frequency of the display panel in the second operating state, then |ΔV21|<|ΔV22|.

[0079] It is understood that the smaller the absolute value of the difference between the touch driving voltage and the first voltage, the closer the magnitude of the touch driving voltage and the first voltage. In the embodiment of the present application, the higher the refresh frequency, the closer the first voltage is to the touch driving voltage, which is advantageous for sufficiently changing the voltage applied to the touch unit between the touch driving voltage and the first voltage within a short time.

[0080] For example, when the touch drive voltage is greater than the first voltage, the voltage applied to the touch unit changes from the touch drive voltage to the first voltage. This process is called an electrode discharge process, and the changed voltage is called a "voltage down." The higher the refresh frequency, the smaller the "voltage down." In this case, the higher the refresh frequency, the larger the first voltage may be. Alternatively, the touch drive voltage may not change in response to changes in the refresh frequency.

[0081] 2 and 5, the display panel includes a pixel circuit 30, which is connected to a light emitting device 20 and receives a light emitting control signal EM for controlling whether the light emitting device 20 emits light. It is considered that the first electrode 21 of the light emitting device 20 is multiplexed as a touch electrode in a touch unit, and the touch unit is electrically connected to the pixel circuit 30.

[0082] For example, the first electrode 21 of the light-emitting device 20 is connected to the first wiring ELVSS, and the second electrode 23 of the light-emitting device 20 is connected to the second wiring ELVDD via the pixel circuit 30, where the first wiring ELVSS can transmit the first power supply voltage, the touch driving voltage and the first voltage in a time-division manner, and the second wiring ELVDD is used to transmit the second power supply voltage, which may be a positive voltage.

[0083] When the light-emitting control signal EM is at an on level, the driving current generated by the pixel circuit 30 is transmitted to the light-emitting device 20, causing the light-emitting device 20 to emit light. When the light-emitting control signal EM is at an off level, the light-emitting device 20 does not emit light.

[0084] In FIG. 5, SN1, SN2, SP1, and SP2 indicate scan signals, Vref1 and Vref2 indicate reset signals, and Vdata indicates a data signal.

[0085] Note that the structure of pixel circuit 30 shown in FIG. 5 is merely an example and does not limit the present application. As long as it does not deviate from the technical concept of the present application, pixel circuit 30 may have a structure other than that of FIG. 5.

[0086] The light emission control signal EM may be called a time-division multiplexed control signal.

[0087] 3, when the touch driving voltage is applied to the i-th touch unit, the light emitting control signal EM applied to the pixel circuit connected to the i-th touch unit is at an off level. In this way, when the light emitting device is in a non-light emitting state, touch identification is performed, and the first electrode 21 of the light emitting device is multiplexed as a touch electrode in a time-division manner, so as to ensure that the row of the current touch scanning performs touch identification, and does not affect the display function of other rows of the display panel.

[0088] For example, when a first voltage is applied to the adjacent touch unit of the i-th touch unit, the light emitting control signal EM applied to the pixel circuit connected to the adjacent touch unit of the i-th touch unit is at an off level. In this way, when performing touch scanning on the i-th touch unit, the light emitting devices corresponding to the i-th touch unit and the adjacent touch units of the i-th touch unit are both in a non-emitting state, which makes the environment where the i-th touch unit is located more stable and is favorable to improving the touch effect.

[0089] For example, when a first voltage is applied to a touch unit adjacent to the i-th touch unit, the light-emitting control signal applied to the pixel circuit connected to the non-adjacent touch unit of the i-th touch unit is at an ON level. When performing touch scanning on the i-th touch unit, the light-emitting device corresponding to the non-adjacent touch unit of the i-th touch unit can be in an emitting state to ensure the display effect of the display panel.

[0090] The light-emitting device corresponding to the touch unit may refer to the light-emitting device corresponding to the first electrode 21 multiplexed as the touch electrode.

[0091] For example, if the first electrode 21 of the light emitting device in the jth row is multiplexed as the ith touch unit, the light emitting device corresponding to the ith touch unit is the light emitting device in the jth row, and the pixel circuit connected to the ith touch unit is the pixel circuit connected to the light emitting device in the jth row, where j and i may or may not be equal.

[0092] For example, the display panel may have a self-capacitance touch structure as shown in Figures 1 and 4. Note that Figures 1 and 4 only show the connection wiring of some of the touch electrodes, and it can be understood that each touch electrode is connected to a wiring, and different touch electrodes are connected to different wirings.

[0093] As another example, as shown in FIG. 6, the display panel may have a mutual capacitance touch structure, and the touch electrodes 11 may be sequentially scanned during the touch identification step. The display panel may further include a sensing unit 60, which includes a plurality of sensing electrodes 61 arranged along a second direction Y, and the plurality of sensing electrodes 61 are arranged in a first direction X. The sensing unit 60 and the touch unit 10 cross each other, and mutual capacitance is formed between the touch electrodes 11 and the sensing electrodes 61. When performing touch identification, the driving chip provides touch driving voltages to the touch electrodes row by row, and then receives sensing signals from the sensing electrodes 61. The sensing signals change at the touch position, thereby realizing the identification of the touch position.

[0094] It should be noted that FIG. 6 is merely an example and is not intended to limit the specific touch structure.

[0095] Based on the same inventive idea, an embodiment of the present application further provides a display panel. Referring to Figures 1 and 2, a display panel 100 according to an embodiment of the present application includes a touch unit 10 and a light-emitting device 20.

[0096] The touch unit 10 includes a plurality of touch electrodes 11 arranged along a first direction X, and the plurality of touch units 10 are arranged in a second direction Y, where the first direction X and the second direction Y intersect.

[0097] The light emitting device 20 includes a first electrode 21 multiplexed as the touch electrode 11 .

[0098] When a touch driving voltage is applied to the i-th touch unit 10(i), a first voltage is applied to one adjacent touch unit 10 of the i-th touch unit 10(i), and a second voltage is applied to another adjacent touch unit 10 of the i-th touch unit 10(i), where the first voltage is smaller than the touch driving voltage and the second voltage is smaller than the touch driving voltage.

[0099] For example, when a touch driving voltage is applied to the i-th touch unit 10(i), a first power supply voltage is applied to a non-adjacent touch unit of the i-th touch unit 10(i), the first voltage is greater than the first power supply voltage, and the second voltage is greater than the first power supply voltage.

[0100] For example, when i=2, the adjacent touch units 10 of the second touch unit 10(2) include the first touch unit 10(1) and the third touch unit 10(3), and the non-adjacent touch units 10 of the second touch unit 10(2) include the fourth touch unit 10(4) to the mth touch unit 10(m). A first voltage can be applied to the first touch unit 10(1), and a second voltage can be applied to the third touch unit 10(3).

[0101] According to the display panel of the embodiment of the present application, when a touch driving voltage is applied to the i-th touch unit 10(i), a first voltage and a second voltage are respectively applied to the two touch units 10 adjacent to the i-th touch unit 10(i), and the first voltage and the second voltage are both between the touch driving voltage and the first power supply voltage, and the first power supply voltage is applied to the touch unit 10 adjacent to the i-th touch unit 10(i). In contrast, the embodiment of the present application can reduce the pressure difference between the currently scanned i-th touch unit 10(i) and its adjacent touch units, so that the currently scanned i-th touch unit 10(i) is in a stable pressure difference environment and reduces the risk of breakdown of the currently scanned i-th touch unit 10(i), thereby improving the touch effect, reducing the possibility of failure of the display panel, and improving the performance of the display panel.

[0102] Based on the same inventive idea, an embodiment of the present application further provides a display device including a display panel according to any one of the above embodiments.

[0103] The display device according to the embodiments of the present application may be other display devices with display and touch functions, such as mobile phones, wearable products, computers, televisions, and in-vehicle display devices, and the present application does not specifically limit them. The display device according to the embodiments of the present application has the beneficial effects of the display panel according to the embodiments of the present application. Specifically, please refer to the specific descriptions of the display panels in the above embodiments, but the description will be omitted in this embodiment.

[0104] 7, the display device 1000 according to the embodiments of the present application may further include a driver chip 200 connected to the display panel 100 for driving the display panel 100. The driver chip 200 may provide a touch driving voltage and a first voltage.

[0105] In the embodiment of the present application, the touch driving voltage and the first voltage are provided by the same driving chip 200, which is advantageous for simplifying the structure of the display device.

[0106] Exemplarily, the touch driving voltage and the first voltage may be generated by different circuits in the driver chip 200. The touch driving voltage and the first voltage may be provided to the touch unit through different pins.

[0107] As shown in FIG. 7, the driver chip 200 includes a first type of pin 201 for providing a touch driving voltage and a second type of pin 202 for providing a first voltage.

[0108] Referring to Figures 4 and 7, the first type pin 201 is connected to the second pole of the first transistor T1, and the second type pin 202 is connected to the second pole of the second transistor T2.

[0109] As an example, the first type of pins 201 may be used to provide a touch driving voltage and a first power supply voltage in a time-division manner. In this case, the driver chip 200 can provide the touch driving voltage, the first voltage, and the first power supply voltage, and the driver chip 200 is called a Touch and Display Driver Integrated (TDDI) chip. The driver chip 200 can have a selection circuit (not shown) therein, and the selection circuit is connected to the first type of pins 201, thereby applying the touch driving voltage and the first power supply voltage to the first type of pins 201 in a time-division manner, and the first type of pins 201 can provide the touch driving voltage and the first power supply voltage to the display panel in a time-division manner.

[0110] As another example, the touch driving voltage and the first voltage may be provided by the same touch driving chip (TPIC), and the first power supply voltage may be provided by a display driving chip (DDIC). The display driving chip and the touch unit are connected through a transistor, so that the touch driving voltage and the first power supply voltage are applied to the touch unit in a time-division manner.

[0111] Based on the same inventive idea, an embodiment of the present application further provides a driving method for a display panel, wherein the display panel comprises a touch unit including a plurality of touch electrodes arranged along a first direction X, a plurality of touch units arranged in a second direction Y, and the first direction X and the second direction Y intersect, and a light-emitting device 20 including a first electrode 21 multiplexed as a touch electrode.

[0112] As shown in FIG. 8, the driving method according to the embodiment of the present application includes S80.

[0113] In S80, when providing a touch driving voltage to the i-th touch unit, a first voltage is provided to at least one adjacent touch unit of the i-th touch unit, where the first voltage is smaller than the touch driving voltage.

[0114] For example, S80 may further include, when providing a touch driving voltage for the i-th touch unit, providing a first power supply voltage to a non-adjacent touch unit of the i-th touch unit, where the first voltage is greater than the first power supply voltage.

[0115] According to the display panel of the embodiment of the present application, a touch driving voltage is provided to an i-th touch unit, and simultaneously a first voltage is provided to an adjacent touch unit of the i-th touch unit, where the first voltage is between the touch driving voltage and a first power supply voltage. In response to providing the first power supply voltage to the adjacent touch unit of the i-th touch unit, the embodiment of the present application reduces the pressure difference between the i-th touch unit currently being scanned and its adjacent touch unit, so that the i-th touch unit currently being scanned is in a stable pressure difference environment and reduces the risk of breakdown of the i-th touch unit currently being scanned, thereby improving the touch effect, reducing the possibility of failure of the display panel, and improving the performance of the display panel.

[0116] In some embodiments, the touch drive voltage is greater than the first voltage, and the first voltage is greater than the first power supply voltage.

[0117] Optionally, the first voltage is greater than 0V.

[0118] In some embodiments, the difference between the touch drive voltage and the first voltage is a first difference, the difference between the first voltage and the first power supply voltage is a second difference, and the absolute value of the first difference is less than the absolute value of the second difference.

[0119] In some embodiments, the display panel includes a first operating condition and a second operating condition, and the magnitude of the first voltage in the first operating condition is different from that in the second operating condition.

[0120] Optionally, the magnitude of the touch drive voltage in the first operating condition and the second operating condition is the same.

[0121] In some embodiments, a voltage difference between the touch driving voltage and the first voltage in a first operating state is ΔV21, a voltage difference between the touch driving voltage and the first voltage in a second operating state is ΔV22, and the refresh frequency of the display panel in the first operating state is greater than the refresh frequency of the display panel in the second operating state, so |ΔV21|<|ΔV22|.

[0122] In some embodiments, the display panel further includes a pixel circuit, which is connected to the light-emitting device and receives a light-emitting control signal for controlling whether the light-emitting device emits light.

[0123] The driving method according to the embodiments of the present application may further include controlling, when the touch driving voltage is applied to the i-th touch unit, the light emitting control signal applied to the pixel circuit connected to the i-th touch unit to be at an off level.

[0124] Optionally, when a first voltage is applied to a touch unit adjacent to the i-th touch unit, a light emitting control signal input to a pixel circuit connected to the touch unit adjacent to the i-th touch unit is controlled to be at an off level.

[0125] Optionally, when a first voltage is applied to a touch unit adjacent to the i-th touch unit, a light emitting control signal input to a pixel circuit connected to a touch unit not adjacent to the i-th touch unit is controlled to be at an on level.

[0126] Based on the same inventive idea, the embodiment of the present application further provides a driving timing for driving the display panel described in any of the above embodiments. As shown in FIG. 3, taking the off level of the time division multiplexing control signal (i.e., the light emitting control signal EM) as an example, the off level is high and the on level is low, the driving timing according to the embodiment of the present application can be as follows: In a touch scanning step of the i-th touch unit, the time division multiplexing control signal of the i-th touch unit is at an off level, and inputting a touch driving voltage to the touch electrode of the i-th touch unit; The time division multiplexed control signal of the adjacent touch unit of the i-th touch unit is at an off level, and inputting a first voltage to the touch electrode of the adjacent touch unit of the i-th touch unit; The first voltage is less than the touch drive voltage.

[0127] Illustratively, in the touch scanning stage of the i-th touch unit, the time division multiplexing control signal of the non-adjacent touch unit of the i-th touch unit is at an on level, and a first power supply voltage is input to the touch electrode of the non-adjacent touch unit of the i-th touch unit, and the first voltage is greater than the first power supply voltage.

[0128] For example, in the touch scanning step of the first touch unit, a high-level light emitting control signal EM is input to the pixel circuits corresponding to the first touch unit and the second touch unit, a low-level light emitting control signal EM is input to the pixel circuits corresponding to the third touch unit and the mth touch unit, a touch driving voltage V1 is input to the first touch unit, a first voltage V2 is input to the second touch unit, and a first power supply voltage VSS is input to the third touch unit and the mth touch unit.

[0129] Also, for example, in the touch scanning step of the second touch unit, a high-level light emitting control signal EM is input to the pixel circuits corresponding to the second touch unit, the first touch unit, and the third touch unit, a low-level light emitting control signal EM is input to the pixel circuits corresponding to the fourth touch unit and the mth touch unit, a touch driving voltage V1 is input to the second touch unit, a first voltage V2 is input to the first touch unit and the third touch unit, and a first power supply voltage VSS is input to the fourth touch unit and the mth touch unit.

[0130] According to the driving timing of the embodiment of the present application, when a touch driving voltage is applied to the i-th touch unit 10(i), a first voltage is applied to at least one adjacent touch unit 10 of the i-th touch unit 10(i), and the first voltage is between the touch driving voltage and the first power supply voltage, and the first power supply voltage is applied to the adjacent touch unit 10 of the i-th touch unit 10(i). In contrast, the embodiment of the present application reduces the pressure difference between the currently scanned i-th touch unit 10(i) and its adjacent touch units, so that the currently scanned i-th touch unit 10(i) is in a stable pressure difference environment and reduces the risk of breakdown of the currently scanned i-th touch unit 10(i), thereby improving the touch effect, reducing the possibility of failure of the display panel, and improving the performance of the display panel.

[0131] In some embodiments, the display panel includes a first operating state and a second operating state, and the driving timing further includes outputting a first voltage having a different magnitude in the first operating state from that in the second operating state, so that the magnitude of the first voltage can be flexibly set according to the environment in which the touch unit is located in different operating states, thereby flexibly adjusting the touch effect in different operating states.

[0132] For example, the magnitude of the touch driving voltage output in the first operating state is the same as that in the second operating state, thereby providing the same magnitude of the touch driving voltage in different operating states and adjusting only the magnitude of the first voltage, which is advantageous in simplifying the driving timing.

[0133] In some embodiments, the voltage difference between the touch driving voltage output in the first operating state and the first voltage is ΔV21, the voltage difference between the touch driving voltage output in the second operating state and the first voltage is ΔV22, and when the refresh frequency of the display panel in the first operating state is higher than the refresh frequency of the display panel in the second operating state, |ΔV21|<|ΔV22|.

[0134] The smaller the absolute value of the difference between the touch driving voltage and the first voltage, the closer the magnitude of the touch driving voltage and the first voltage. In the embodiment of the present application, the higher the refresh frequency, the closer the first voltage is to the touch driving voltage, which is advantageous for making the voltage applied to the touch unit sufficiently change between the touch driving voltage and the first voltage within a short time.

[0135] The transistors in the embodiments of the present application may be either N-type or P-type transistors. For an N-type transistor, the on level is a high level and the off level is a low level. That is, when the gate potential of an N-type transistor is a high level, its first and second poles are conductive, and when the gate potential of an N-type transistor is a low level, its first and second poles are disconnected. For a P-type transistor, the on level is a low level and the off level is a high level. That is, when the gate potential of a P-type transistor is a low level, its first and second poles are conductive, and when the gate potential of a P-type transistor is a high level, its first and second poles are disconnected. In specific implementations, the gate of each transistor is its control pole, and depending on the gate signal and its type of each transistor, the first pole can be the source and the second pole can be the drain, or the first pole can be the drain and the second pole can be the source, but this is not limited thereto. Furthermore, the on level and off level in the examples of this application have a general meaning, where the on level refers to any level that can turn on a transistor, and the off level refers to any level that can turn off / shut off a transistor.

[0136] According to the above-mentioned examples of the present application, these examples do not describe all details in detail, and the present application is not limited to the above-mentioned specific examples. From the above description, it is apparent that many modifications and variations are possible. This specification has selected and specifically described these examples in order to better understand the principles and practical applications of the present application, thereby enabling those skilled in the art to fully utilize the present application and modifications based on the present application. The present application is limited only by the claims and their full scope and equivalents. [Explanation of symbols]

[0137] 100 Display Panel 10 Touch unit 11 Touch electrode 20 light-emitting device 21 first electrode 22 light-emitting layer 23 second electrode 30 pixel circuit 41 pixel restricting portion 42 isolation structure 421 first isolation portion 422 second isolation portion 50 Gate Circuit 60 Guidance path 61 Sensing electrode 200 driving tip 201 first type pin 202 second type pin 1000 display devices

Claims

1. A touch unit including a plurality of touch electrodes arranged along a first direction, the plurality of touch units being arranged in a second direction, the first direction and the second direction intersecting; a light emitting device including a first electrode multiplexed as the touch electrode; When a touch driving voltage is applied to the i-th touch unit, a first voltage is applied to at least one adjacent touch unit of the i-th touch unit, where i is a positive integer; The first voltage is lower than the touch driving voltage. A display panel characterized by:

2. When a touch driving voltage is applied to the i-th touch unit, a first power supply voltage is applied to a non-adjacent touch unit of the i-th touch unit, and the first voltage is greater than the first power supply voltage; the first voltage is greater than 0V; 2. The display panel according to claim 1, wherein the first and second electrodes are arranged parallel to each other.

3. a difference between the touch driving voltage and the first voltage is a first difference, a difference between the first voltage and the first power supply voltage is a second difference, and an absolute value of the first difference is smaller than an absolute value of the second difference; 3. The display panel according to claim 2.

4. The display panel further includes a gate circuit, an output terminal of the gate circuit is connected to the touch unit, the touch driving voltage is applied to a first input terminal of the gate circuit, and the first voltage is applied to a second input terminal of the gate circuit; The touch driving voltage or the first power supply voltage is applied to a first input terminal of the gate circuit in a time-division manner; the gate circuit includes a first transistor and a second transistor, a first pole of the first transistor and a first pole of the second transistor being connected to each other to form an output terminal of the gate circuit, a second pole of the first transistor being a first input terminal of the gate circuit, and a second pole of the second transistor being a second input terminal of the gate circuit; 3. The display panel according to claim 2.

5. the display panel further includes a pixel circuit, the pixel circuit is connected to the light-emitting device, and a light-emitting control signal is input to the pixel circuit, the light-emitting control signal includes an on level that controls turning on the light-emitting device and an off level that controls turning off the light-emitting device; When the touch driving voltage is applied to the i-th touch unit, the light emitting control signal input to the pixel circuit connected to the i-th touch unit is at an off level.

2. The display panel according to claim 1, wherein the first and second electrodes are arranged parallel to each other.

6. When a first voltage is applied to the adjacent touch unit of the i-th touch unit, the light-emitting control signal input to the pixel circuit connected to the adjacent touch unit of the i-th touch unit is at an off level; Or, when a first voltage is applied to an adjacent touch unit of the i-th touch units, the light-emitting control signal input to the pixel circuit connected to a non-adjacent touch unit of the i-th touch units is at an ON level; 6. The display panel according to claim 5.

7. A touch unit including a plurality of touch electrodes arranged along a first direction, the plurality of touch units being arranged in a second direction, the first direction and the second direction intersecting; a light emitting device including a first electrode multiplexed as the touch electrode; When a touch driving voltage is applied to the j-th touch unit, a first voltage is applied to one adjacent touch unit of the j-th touch unit, and a second voltage is applied to another adjacent touch unit of the j-th touch unit, where j is a positive integer equal to or greater than 2; The first voltage is lower than the touch driving voltage, and the second voltage is lower than the touch driving voltage; A display panel characterized by:

8. a substrate, an isolation structure, and a light emitting device; an opening is formed surrounded by at least a portion of the isolation structure; the light emitting device is located on one side of the substrate; At least a portion of the light emitting device is exposed through the opening; the light emitting device includes a first electrode multiplexed as a touch electrode; A plurality of the touch electrodes arranged in a first direction constitute one touch unit, and a plurality of the touch units are arranged in a second direction, and the first direction and the second direction intersect with each other; When a touch driving voltage is applied to the i-th touch unit, a first voltage is applied to at least one adjacent touch unit of the i-th touch unit, where i is a positive integer; The first voltage is lower than the touch driving voltage. A display panel characterized by:

9. A display panel comprising the display panel according to claim 1. A display device characterized by:

10. When a touch driving voltage is applied to the i-th touch unit, a first power supply voltage is applied to a non-adjacent touch unit of the i-th touch unit, and the first voltage is greater than the first power supply voltage, and the first voltage is greater than 0V; The display device further includes a driver chip for providing the touch driving voltage and the first voltage; The driving chip includes a first type of pin for providing the touch driving voltage or the first power supply voltage in a time-division manner, and a second type of pin for providing the first voltage; 10. The display device according to claim 9.

11. A touch unit including a plurality of touch electrodes arranged along a first direction, the plurality of touch units being arranged in a second direction, the first direction and the second direction intersecting; a light-emitting device including a first electrode multiplexed as the touch electrode, When providing touch driving voltages to the i-th touch units, providing a first voltage to at least one adjacent touch unit of the i-th touch units, where i is a positive integer; wherein the first voltage is lower than the touch driving voltage; A driving method characterized by the above.

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