Display panel and driving method therefor, and display apparatus

Abstract

A display panel and a driving method therefor, and a display apparatus. The display panel (10) comprises at least two partitions (F), at least two first power source voltage signal lines (ELVSS) and at least two first initialization signal lines (Vref), wherein one partition (F) comprises at least one sub-pixel, and each sub-pixel comprises a light-emitting element (D); the first initialization signal lines (Vref) connected to first electrodes of light-emitting elements (D) in the at least two partitions (F) are different, and second electrodes of the light-emitting elements (D) in the at least two partitions (F) are insulated from each other; the first power source voltage signal lines (ELVSS) connected to the second electrodes of the light-emitting elements (D) in the at least two partitions (F) are different; the first initialization signal lines (Vref) are used for transmitting first initialization signals for initializing the first electrodes of the light-emitting elements (D); and the first power source voltage signal lines (ELVSS) are used for transmitting negative power source voltage signals. The initial cross-pressure value difference and brightness difference between light-emitting elements (D) in different partitions (F) can be reduced.

Description

Display panel, driving method thereof, and display device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202310731471.9, filed on June 16, 2023, entitled “Display panel, driving method thereof, driving module, and display device,” and the entire contents of that application are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of display technology, and in particular relates to a display panel, a driving method thereof, and a display device. Background Art

[0004] With the continuous development of display technology, the application scope of display panels is becoming increasingly wider, and people's requirements for display panels are also becoming higher and higher. The inventors of this application have found that the initial voltage difference of light-emitting elements in different areas of some current display panels is large, resulting in large brightness differences in different areas.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a display panel and a driving method thereof, and a display device, which can realize the independent setting of the first initialization signal line between different partitions, which is beneficial to reducing the initial cross-voltage value difference and brightness difference of the light-emitting elements in different partitions.

[0007] In a first aspect, an embodiment of the present application provides a display panel, which includes at least two partitions, at least two first power supply voltage signal lines and at least two first initialization signal lines, one partition includes at least one sub-pixel, and the sub-pixel includes a light-emitting element; the first electrodes of the light-emitting elements in at least two partitions are connected to different first initialization signal lines, the second electrodes of the light-emitting elements in at least two partitions are insulated from each other, and the second electrodes of the light-emitting elements in at least two partitions are connected to different first power supply voltage signal lines, the first initialization signal line is used to transmit a first initialization signal for initializing the first electrode of the light-emitting element, and the first power supply voltage signal line is used to transmit a negative power supply voltage signal.

[0008] In a second aspect, an embodiment of the present application provides a method for driving a display panel, which is applied to a display panel as provided in the first aspect, and the driving method includes: providing different first initialization signals to the first electrodes of the light-emitting elements in at least two partitions through at least two first initialization signal lines; providing different first voltage source signals to the second electrodes of the light-emitting elements in at least two partitions through at least two first voltage source signal lines.

[0009] In a third aspect, an embodiment of the present application provides a driving module, which is electrically connected to the display panel as in the first aspect, and the driving module includes: an acquisition unit, for obtaining, for any i-th partition in the display panel, the voltage value of the negative power supply voltage signal provided to the i-th partition and a preset initial cross-voltage value, where i is a positive integer; a calculation unit, for determining, based on the voltage value of the negative power supply voltage signal corresponding to the i-th partition and the preset initial cross-voltage value, the voltage value of the first initialization signal transmitted by the first initialization signal line corresponding to the i-th partition, the initial cross-voltage value being the voltage difference between the voltage value of the first initialization signal and the voltage value of the negative power supply voltage signal; an output unit, for providing a first initialization signal of a corresponding voltage value to the first initialization signal line corresponding to the i-th partition based on the determined voltage value of the first initialization signal transmitted by the first initialization signal line corresponding to the i-th partition.

[0010] In a fourth aspect, an embodiment of the present application provides a display device, which includes the display panel provided in the first aspect and / or the driving module provided in the third aspect.

[0011] The display panel and its driving method, and display device of the embodiment of the present application, the display panel includes at least two partitions, at least two first power supply voltage signal lines and at least two first initialization signal lines, one partition includes at least one sub-pixel, and the sub-pixel includes a light-emitting element; the first electrodes of the light-emitting elements in at least two partitions are connected to different first initialization signal lines, the second electrodes of the light-emitting elements in at least two partitions are insulated from each other, and the second electrodes of the light-emitting elements in at least two partitions are connected to different first power supply voltage signal lines, the first initialization signal line is used to transmit a first initialization signal for initializing the first electrode of the light-emitting element, and the first power supply voltage signal line is used to transmit a negative power supply voltage signal. In the embodiment of the present application, the first initialization signal line and the first power supply voltage signal line are independently set for each partition, which is conducive to realizing independent setting of the first initialization signal between different partitions. In conjunction with the change of the negative power supply voltage signal transmitted by the first power supply voltage signal line, the light-emitting elements in each partition can obtain a suitable initial cross-voltage value, which is conducive to reducing the difference in initial cross-voltage values ​​and brightness differences of the light-emitting elements in different partitions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] FIG1 is a schematic structural diagram of a display panel provided in an embodiment of the present application;

[0014] FIG2 is another schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0015] FIG3 is a circuit diagram of a display panel provided in an embodiment of the present application;

[0016] FIG4 is another circuit diagram of a display panel provided in an embodiment of the present application;

[0017] FIG5 is another circuit diagram of a display panel provided in an embodiment of the present application;

[0018] FIG6 is another circuit diagram of a display panel provided in an embodiment of the present application;

[0019] FIG7 is a partial cross-sectional schematic diagram of a display panel provided in an embodiment of the present application;

[0020] FIG8 is a circuit diagram of a pixel circuit in a display panel provided by an embodiment of the present application;

[0021] FIG9 is another circuit diagram of a display panel provided in an embodiment of the present application;

[0022] FIG10 is a schematic flow chart of a method for driving a display panel according to an embodiment of the present application;

[0023] FIG11 is a schematic diagram of a flow chart of S1001 in the method for driving a display panel provided in an embodiment of the present application;

[0024] FIG12 is a schematic structural diagram of a driving module provided in an embodiment of the present application;

[0025] FIG13 is a schematic structural diagram of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than 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 embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0027] It should be noted that the transistors in the embodiments of the present application can be either N-type transistors or P-type transistors. For N-type transistors, the on-level is a high level, and the off-level is a low level. That is, when the gate of the N-type transistor is at a high level, the first and second electrodes of the transistor are conductive, and when the gate of the N-type transistor is at a low level, the first and second electrodes of the transistor are disconnected. For P-type transistors, the on-level is a low level, and the off-level is a high level. That is, when the control terminal of the P-type transistor is at a low level, the first and second electrodes of the transistor are conductive, and when the control terminal of the P-type transistor is at a high level, the first and second electrodes of the transistor are disconnected. In a specific implementation, the gate of each of the above-mentioned transistors serves as its control terminal, and depending on the signal of the gate of each transistor and its type, the first electrode of the transistor can serve as the source and the second electrode as the drain, or the first electrode can serve as the drain and the second electrode as the source, without distinction being made herein. In addition, the on-level and off-level in the embodiments of the present invention are both general terms. The on-level refers to any level that can turn the transistor on, and the off-level refers to any level that can turn the transistor off / on.

[0028] In the embodiments of the present application, the term “electrically connected” may refer to a direct electrical connection between two components, or may refer to an electrical connection between two components via one or more other components.

[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 modifications and variations of this application that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. It should be noted that the embodiments provided in the examples of this application can be combined with each other without contradiction.

[0030] Before describing the technical solutions provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application first specifically describes the problems existing in the related art:

[0031] With the continuous development of display technology, the application range of display panels is becoming increasingly wider, and people's requirements for display panels are also becoming higher and higher. Currently, some display panels use auxiliary cathode patterning to achieve zoned control of the negative power supply voltage signal (i.e., ELVSS signal). The voltage value of the negative power supply voltage signal in each zone can be adjusted according to the display brightness and total current of each zone to achieve the purpose of saving power.

[0032] One end of the light-emitting element receives a negative power supply voltage signal, and the other end receives an initialization voltage signal (i.e., the Vref signal). The initial voltage across the light-emitting element is equal to the difference between the initialization voltage signal and the negative power supply voltage signal. Because the negative power supply voltage signal varies between different partitions, the initial voltage across the light-emitting element can differ significantly when the initialization voltage signal has the same value, leading to significant differences in brightness across different regions. This difference in brightness is particularly pronounced at low grayscale levels.

[0033] In view of the above research findings of the inventors, the embodiments of the present application provide a display panel and a driving method thereof, and a display device, which can solve the above technical problems existing in the related art.

[0034] The technical concept of the embodiments of the present application is that the first initialization signal line and the first power supply voltage signal line are both independently set in each partition, which is conducive to the independent setting of the first initialization signal between different partitions. In conjunction with the change of the negative power supply voltage signal transmitted by the first power supply voltage signal line, the light-emitting elements in each partition can obtain a suitable initial cross-voltage value, which is conducive to reducing the difference in initial cross-voltage values ​​and brightness of the light-emitting elements in different partitions.

[0035] The following first introduces the display panel provided in the embodiment of the present application.

[0036] FIG1 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application. As shown in FIG1 , the display panel 10 provided in an embodiment of the present application may include at least two partitions F, at least two first power supply voltage signal lines ELVSS, and at least two first initialization signal lines Vref. The number of partitions F in the display panel 10 can be flexibly adjusted based on actual conditions and is not limited in this embodiment of the present application. In some examples, one partition F may correspond to one first power supply voltage signal line ELVSS, and one partition F may also correspond to one first initialization signal line Vref, thereby achieving a partitioned arrangement of the first power supply voltage signal line ELVSS and the first initialization signal line Vref.

[0037] A partition F may include at least one sub-pixel, and the sub-pixel may include a light-emitting element D. The number of sub-pixels in the partition F may be flexibly adjusted according to actual conditions, and the embodiments of the present application are not limited thereto. For example, the light-emitting element D includes but is not limited to an organic light-emitting diode (OLED). The first initialization signal line Vref may be electrically connected to the first electrode of the light-emitting element D, and the first initialization signal line Vref may be used to transmit a first initialization signal for initializing the first electrode of the light-emitting element D. The first power supply voltage signal line ELVSS may be electrically connected to the second electrode of the light-emitting element D, and the first power supply voltage signal line ELVSS may be used to transmit a negative power supply voltage signal. For example, the first electrode of the light-emitting element D may be the anode of the light-emitting element D, and the second electrode of the light-emitting element D may be the cathode of the light-emitting element D.

[0038] In an embodiment of the present application, the first electrodes of the display area of ​​the display panel are insulated from each other, and the first electrodes of the light-emitting elements D in at least two subareas F are connected to different first initialization signal lines Vref. The second electrodes of the light-emitting elements D in at least two subareas F are insulated from each other, that is, not electrically connected to each other. For example, in some examples, the display panel may be provided with an isolation structure, which may be located between the light-emitting elements D in different subareas F to isolate the second electrodes of the light-emitting elements D in different subareas F. The second electrodes of the light-emitting elements D in at least two subareas F are connected to different first power supply voltage signal lines ELVSS.

[0039] Because different partitions F can be connected to different first power supply voltage signal lines ELVSS, the voltage value of the negative power supply voltage signal received by the light-emitting elements D in different partitions F can be flexibly set according to the different partitions. Similarly, because different partitions F can be connected to different first initialization signal lines Vref, the voltage value of the first initialization signal received by the light-emitting elements D in different partitions F can also be flexibly set according to the different partitions. For example, for a partition F with a larger voltage value of the negative power supply voltage signal, the voltage value of the first initialization signal received can also be set to be larger. For a partition F with a smaller voltage value of the negative power supply voltage signal, the voltage value of the first initialization signal received can also be set to be smaller. This helps reduce the difference in initial voltage across the light-emitting elements in different partitions, and thus helps reduce the difference in brightness of the light-emitting elements in different partitions.

[0040] The display panel of the embodiment of the present application includes at least two partitions, at least two first power supply voltage signal lines and at least two first initialization signal lines, one partition includes at least one sub-pixel, and the sub-pixel includes a light-emitting element; the first electrodes of the light-emitting elements in at least two partitions are connected to different first initialization signal lines, the second electrodes of the light-emitting elements in at least two partitions are insulated from each other, and the second electrodes of the light-emitting elements in at least two partitions are connected to different first power supply voltage signal lines, the first initialization signal line is used to transmit a first initialization signal for initializing the first electrode of the light-emitting element, and the first power supply voltage signal line is used to transmit a negative power supply voltage signal. In the embodiment of the present application, the first initialization signal line and the first power supply voltage signal line are independently set for each partition, which is conducive to realizing the independent setting of the first initialization signal between different partitions. In conjunction with the change of the negative power supply voltage signal transmitted by the first power supply voltage signal line, the light-emitting elements in each partition can obtain a suitable initial cross-voltage value, which is conducive to reducing the difference in initial cross-voltage values ​​and brightness differences of the light-emitting elements in different partitions.

[0041] Figure 2 is a schematic diagram of the structure of a display panel provided in an embodiment of the present application. As shown in Figure 2, according to some embodiments of the present application, the at least two partitions F may optionally include a first partition F1 and a second partition F2. The first partition F1 and the second partition F2 are arbitrarily different partitions F. The first power supply voltage signal line ELVSS connected to the first partition F1 can provide a negative power supply voltage signal of a first voltage value, and the first initialization signal line Vref connected to the first partition F1 can provide a first initialization signal of a second voltage value. The specific values ​​of the first and second voltage values ​​can be flexibly set according to actual conditions and are not limited in this embodiment of the present application.

[0042] The first power supply voltage signal line ELVSS connected to the second partition F2 provides a negative power supply voltage signal of a third voltage value, and the first initialization signal line Vref connected to the second partition F2 provides a first initialization signal of a fourth voltage value. The specific values ​​of the third and fourth voltages can be flexibly set according to actual conditions and are not limited in this embodiment of the present application.

[0043] The first voltage value is different from the third voltage value, and the second voltage value is different from the fourth voltage value.

[0044] That is, the first power supply voltage signal line ELVSS connected to the first subarea F1 and the first power supply voltage signal line ELVSS connected to the second subarea F2 can provide negative power supply voltage signals of different voltage values. Accordingly, the first initialization signal line Vref connected to the first subarea F1 and the first initialization signal line Vref connected to the second subarea F2 can provide first initialization signals of different voltage values.

[0045] For example, when the voltage value of the negative power supply voltage signal transmitted by the first power supply voltage signal line ELVSS connected to the first partition F1 is greater than the voltage value of the negative power supply voltage signal transmitted by the first power supply voltage signal line ELVSS connected to the second partition F2, the voltage value of the first initialization signal transmitted by the first initialization signal line Vref connected to the first partition F1 may also be greater than the voltage value of the first initialization signal transmitted by the first initialization signal line Vref connected to the second partition F2. This helps reduce the difference in initial voltage across the light-emitting elements in different partitions, thereby helping to reduce the difference in brightness of the light-emitting elements in different partitions.

[0046] In some specific embodiments, optionally, the difference between the first voltage value and the second voltage value is a first difference value, i.e., the initial voltage across the light-emitting elements in the first subarea F1 is the absolute value of the first difference value, and the difference between the third voltage value and the fourth voltage value is a second difference value, i.e., the initial voltage across the light-emitting elements in the second subarea F2 is the absolute value of the second difference value. The difference between the first difference and the second difference is less than a preset threshold value. The preset threshold value can be flexibly adjusted based on actual conditions and is not limited in this embodiment of the present application.

[0047] The smaller the preset threshold, the smaller the difference between the initial voltage-to-slope values ​​of the light-emitting elements in the first partition F1 and the initial voltage-to-slope values ​​of the light-emitting elements in the second partition F2. For example, in some examples, the preset threshold may be equal to 0, meaning that the initial voltage-to-slope values ​​of the light-emitting elements in the first partition F1 and the initial voltage-to-slope values ​​of the light-emitting elements in the second partition F2 may be equal, thereby significantly reducing the difference in initial voltage-to-slope values ​​and brightness between the light-emitting elements in different partitions.

[0048] Continuing to refer to Figure 2, according to some embodiments of the present application, optionally, the first electrode of the light-emitting element D in the same partition F can be connected to the same first initialization signal line Vref, and the second electrode of the light-emitting element D in the same partition F can be connected to the same first power supply voltage signal line ELVSS.

[0049] That is, the first electrodes of the light emitting elements D in the same partition F can receive the first initialization signal with the same voltage value, and the second electrodes of the light emitting elements D in the same partition F can receive the negative power supply voltage signal with the same voltage value.

[0050] In this way, the first electrodes of the light-emitting elements D in the same partition F are connected to the same first initialization signal line Vref, and the second electrodes of the light-emitting elements D in the same partition F are connected to the same first power supply voltage signal line ELVSS. This can reduce the number of first initialization signal lines Vref and first power supply voltage signal lines ELVSS in the display panel, which is beneficial to wiring design and saves production costs.

[0051] FIG3 is a circuit diagram of a display panel provided in an embodiment of the present application. As shown in FIG3 , according to some embodiments of the present application, the display panel 10 may optionally include a display area AA and a non-display area NA. Multiple partitions F may be located in the display area AA. The first initialization signal line Vref may include a first sub-initialization signal line V1 located in the display area AA and a second sub-initialization signal line V2 located in the non-display area NA. The first electrodes of the light-emitting elements D in at least two partitions F are connected to different first sub-initialization signal lines V1. For example, the first electrodes of the light-emitting elements D in different partitions F may be connected to different first sub-initialization signal lines V1. Different first sub-initialization signal lines V1 are connected to different second sub-initialization signal lines V2.

[0052] In some examples, the display panel 10 may include multiple first pads P, and different second sub-initialization signal lines V2 may be connected to different first pads P. Different first pads P may be electrically connected to different first initialization signal output terminals of a driving module (not shown). The first initialization signal output terminal is used to provide a first initialization signal. Exemplarily, the driving module includes but is not limited to a display driver chip or a power supply chip.

[0053] In this way, since different second sub-initialization signal lines V2 are electrically connected to different first initialization signal output terminals of the driving module through different first pads P, and different first initialization signal output terminals can output first initialization signals with the same voltage value or different voltage values, different second sub-initialization signal lines V2 can transmit first initialization signals with the same voltage value or different voltage values, and then different first sub-initialization signal lines V1 can receive first initialization signals with the same voltage value or different voltage values.

[0054] FIG3 illustrates an example in which a display panel includes three partitions F (i.e., partition F1', partition F2', and partition F3'). As shown in FIG3 , corresponding to the three partitions, the first sub-initialization signal line V1 may include a first sub-initialization signal line V1-1, a first sub-initialization signal line V1-2, and a first sub-initialization signal line V1-3, and the second sub-initialization signal line V2 may include a second sub-initialization signal line V2-1, a second sub-initialization signal line V2-2, and a second sub-initialization signal line V2-3. The first pad P may include a first pad P1, a first pad P2, and a first pad P3. The first pad P1, the first pad P2, and the first pad P3 may be connected to different first initialization signal output terminals.

[0055] The first electrode of the light-emitting element D in the partition F1' can be connected to the first sub-initialization signal line V1-1, and the first sub-initialization signal line V1-1 can be electrically connected to the first pad P1 via the second sub-initialization signal line V2-1. The first electrode of the light-emitting element D in the partition F2' can be connected to the first sub-initialization signal line V1-2, and the first sub-initialization signal line V1-2 can be electrically connected to the first pad P2 via the second sub-initialization signal line V2-2. The first electrode of the light-emitting element D in the partition F3' can be connected to the first sub-initialization signal line V1-3, and the first sub-initialization signal line V1-3 can be electrically connected to the first pad P3 via the second sub-initialization signal line V2-3.

[0056] In some examples, the first pad P1, the first pad P2, and the first pad P3 can receive first initialization signals of different voltage values, and then the second sub-initialization signal line V2-1, the second sub-initialization signal line V2-2, and the second sub-initialization signal line V2-3 can transmit first initialization signals of different voltage values ​​to partitions F1', partitions F2', and partitions F3'.

[0057] Continuing with FIG. 3 , according to some embodiments of the present application, the non-display area NA may optionally include opposing first and second non-display areas NA1 and NA2, as well as opposing third and fourth non-display areas NA3 and NA4. The first non-display area NA1, the display area AA, and the second non-display area NA2 may be arranged sequentially along the column direction W1 of the display panel, and the third non-display area NA3, the display area AA, and the fourth non-display area NA4 may be arranged sequentially along the row direction W2 of the display panel, with the column direction W1 intersecting the row direction W2. In some examples, the first non-display area NA1 may be an upper frame, the second non-display area NA2 may be a lower frame, the third non-display area NA3 may be a left frame, and the fourth non-display area NA4 may be a right frame.

[0058] The first pad P may be located in the second non-display area NA2 and electrically connected to the first initialization signal output terminal of the driving module. The second sub-initialization signal line V2 may be located in the third non-display area NA3 and / or the fourth non-display area NA4 and extend to the first pad P. For example, in some examples, the first sub-initialization signal line V1 connected to a partition F may be connected to two second sub-initialization signal lines V2, and the two second sub-initialization signal lines V2 may be located in the third non-display area NA3 and the fourth non-display area NA4, respectively. For example, in other examples, the first sub-initialization signal line V1 connected to a partition F may be connected to one second sub-initialization signal line V2, and the second sub-initialization signal line V2 may be located in either the third non-display area NA3 or the fourth non-display area NA4.

[0059] FIG4 is another circuit diagram of a display panel provided in an embodiment of the present application. As shown in FIG4 , according to some embodiments of the present application, optionally, the first sub-initialization signal line V1 connected to the first electrode of the light-emitting element D in the same partition F may include a first routing portion Z1 extending along a first direction X and a second routing portion Z2 extending along a second direction Y, and the first routing portion Z1 is electrically connected to the second routing portion Z2. For example, the first direction X may be the row direction of the display panel, and the second direction Y may be the column direction of the display panel. Of course, the first direction X may also be the column direction of the display panel, and the second direction Y may be the row direction of the display panel, and the embodiments of the present application are not limited to this.

[0060] Continuing to refer to Figure 4, according to some embodiments of the present application, optionally, the first sub-initialization signal line V1 connected to the first electrode of the light-emitting element D in the same partition F may include multiple first routing sections Z1 and multiple second routing sections Z2, and the multiple first routing sections Z1 and the multiple second routing sections Z2 are cross-connected to form a mesh structure.

[0061] In this way, since multiple first routing sections Z1 and multiple second routing sections Z2 are cross-connected to form a mesh structure, the routing impedance of the first sub-initialization signal line V1 and the first initialization signal line Vref is greatly reduced, which can ensure that the voltage values ​​of the first initialization signals received by the light-emitting elements D in the same partition F are the same or similar, and ensure that the initial voltage across the light-emitting elements D in the same partition F is the same or similar.

[0062] Continuing to refer to Figure 4, according to some embodiments of the present application, optionally, along the thickness direction of the display panel, the area formed by the positive projection of the mesh structure (the dotted area Q shown in Figure 4) includes the first electrodes of N light-emitting elements in the corresponding partition F, 1≤N≤M, M represents the number of light-emitting elements in the corresponding partition of the mesh structure, and N and M are both positive integers.

[0063] FIG4 illustrates an example in which a partition includes six light-emitting elements, i.e., M=6. As shown in FIG4 , the area formed by the orthographic projection of the mesh structure (the dotted area Q shown in FIG4 ) may include the first electrode of one light-emitting element in the corresponding partition F, i.e., N=1. In other words, the first electrode of each light-emitting element D may have the first routing portion Z1 and / or the second routing portion Z2 around it (e.g., top, bottom, left, and right).

[0064] FIG5 is another circuit diagram of a display panel provided in an embodiment of the present application. As shown in FIG5 , according to other embodiments of the present application, optionally, still taking the example of a subarea including six light-emitting elements, the area formed by the orthographic projection of the mesh structure (as shown in the dotted area Q in FIG5 ) may include the first electrodes of multiple light-emitting elements (e.g., three light-emitting elements) in the corresponding subarea F, i.e., N < M, and the mesh structure may surround the first electrodes of the multiple light-emitting elements in the corresponding subarea F.

[0065] In order to better reduce the routing impedance of the first sub-initialization signal line V1, in some specific examples, the mesh structure shown in Figure 4 can be used to surround the first electrode of one light-emitting element in the corresponding partition F, that is, N=1, thereby increasing the number of first routing portions Z1 and / or second routing portions Z2 in the first sub-initialization signal line V1 and reducing the routing impedance of the first sub-initialization signal line V1 as much as possible.

[0066] FIG6 is another circuit diagram of a display panel provided in an embodiment of the present application. As shown in FIG6 , unlike the embodiment shown in FIG4 , according to other embodiments of the present application, optionally, the first sub-initialization signal line V1 connected to the first electrode of the light-emitting element D in the same partition F may include multiple first wiring portions Z1 and one second wiring portion Z2, and multiple first wiring portions Z1 are connected to one second wiring portion Z2 to form a comb-like structure. The so-called comb-like structure can be understood as a shape similar to a comb, where one second wiring portion Z2 can be regarded as a "comb handle" and multiple first wiring portions Z1 can be regarded as "comb teeth." For example, as shown in FIG6 , when the first sub-initialization signal line V1 can include two first wiring portions Z1 and one second wiring portion Z2, the comb-like structure is in the shape of a capital letter "F", that is, it includes a "comb handle" and two "comb teeth."

[0067] In this way, since multiple first routing sections Z1 and one second routing section Z2 are connected to form a comb-like structure, the routing impedance of the first sub-initialization signal line V1 and the first initialization signal line Vref is greatly reduced, which can ensure that the voltage values ​​of the first initialization signals received by the light-emitting elements D in the same partition F are the same or similar, and ensure that the initial voltage-crossing values ​​of the light-emitting elements D in the same partition F are the same or similar.

[0068] FIG7 is a partial cross-sectional schematic diagram of a display panel provided in an embodiment of the present application. As shown in FIG7 , according to some embodiments of the present application, optionally, along the thickness direction Z of the display panel, the display panel 10 may include a substrate 01, a first metal layer M1, a second metal layer M2, a third metal layer M3, and a fourth metal layer M4, as well as an insulating layer between any two adjacent metal layers. For example, a gate insulating layer GI is provided between the substrate 01 and the first metal layer M1, a capacitor insulating layer CI is provided between the first metal layer M1 and the second metal layer M2, an interlayer dielectric layer ILD is provided between the second metal layer M2 and the third metal layer M3, and a planarization layer PLN is provided between the third metal layer M3 and the fourth metal layer M4. The substrate 01 may be a flexible substrate or a rigid substrate, which is not limited in the embodiments of the present application. In some examples, the first metal layer M1 may be used to form the gate of a transistor, the second metal layer M2 may be used to form the plate of a capacitor, and the third metal layer M3 may be used to form the connection structure of the source and drain of the transistor. Along the thickness direction Z of the display panel, the fourth metal layer M4 is located on a side away from the third metal layer M3 . The display panel is further provided with an anode layer RE. The first electrode of the light emitting element may be located on the anode layer RE.

[0069] As shown in Figures 4 and 7 , one of the first routing portion Z1 and the second routing portion Z2 can be located in the second metal layer M2, while the other can be located in the third metal layer M3 or the fourth metal layer M4. For example, the first routing portion Z1 can be located in the second metal layer M2, while the second routing portion Z2 can be located in the third metal layer M3 or the fourth metal layer M4. For another example, the second routing portion Z2 can be located in the second metal layer M2, while the first routing portion Z1 can be located in the third metal layer M3 or the fourth metal layer M4. The first routing portion Z1 and the second routing portion Z2 are connected via vias.

[0070] In this way, by setting the first routing portion Z1 and the second routing portion Z2 through at least two metal layers, a first sub-initialization signal line V1 with a mesh structure or a comb structure can be formed, which is beneficial to greatly reduce the routing impedance of the first sub-initialization signal line V1 and the first initialization signal line Vref, and can ensure that the voltage values ​​of the first initialization signals received by the light-emitting elements D in the same partition F are the same or similar, and ensure that the initial cross-voltage values ​​of the light-emitting elements D in the same partition F are the same or similar.

[0071] Continuing with FIG. 7 , according to some embodiments of the present application, the display panel 10 may optionally be provided with an isolation structure 501. The isolation structures 501 in different partitions are insulated from each other. The isolation structure 501 can at least be used to isolate the second electrodes SE of the light-emitting elements. In other words, the second electrodes SE of the light-emitting elements in different partitions can be insulated from each other.

[0072] According to some embodiments of the present application, the voltage value of the first initialization signal received by each partition can optionally be flexibly adjusted. For example, for any i-th partition in the display panel, the voltage value of the first initialization signal transmitted by the first initialization signal line Vref connected to the i-th partition is determined based on the voltage value of the negative power supply voltage signal transmitted by the first power supply voltage signal line ELVSS connected to the i-th partition and a preset initial cross-voltage value, where the initial cross-voltage value is the voltage difference between the voltage value of the first initialization signal and the voltage value of the negative power supply voltage signal, where i is a positive integer. For example, the initial cross-voltage value can include the first difference and the second difference described above, and the first difference and the second difference can be the same.

[0073] For example, the voltage value of the first initialization signal transmitted by the first initialization signal line Vref connected to the i-th partition can be calculated according to the following expression: Vint = A + ELVSS' (1)

[0074] Among them, Vint represents the voltage value of the first initialization signal transmitted by the first initialization signal line Vref connected to the i-th partition, A represents the preset initial cross-voltage value, and ELVSS' represents the voltage value of the negative power supply voltage signal transmitted by the first power supply voltage signal line ELVSS connected to the i-th partition.

[0075] The initial voltage-to-crossover value A can be predetermined, and its specific value can be flexibly adjusted based on actual conditions, such as display quality (e.g., brightness and / or color uniformity), although this is not limited in this embodiment of the present application. Once the voltage value ELVSS' of the negative power supply voltage signal is determined, the voltage value Vint of the first initialization signal can be determined.

[0076] In some embodiments, the initial cross-voltage values ​​corresponding to different partitions may be the same, that is, the initial cross-voltage values ​​of the light-emitting elements in different partitions are ensured to be the same, so that the brightness difference of the light-emitting elements in different partitions is small.

[0077] In some embodiments, the initial voltage value is greater than 0V, that is, the voltage value Vint of the first initialization signal is greater than the voltage value ELVSS' of the negative power supply voltage signal, so that the first electrode of the light-emitting element has a relatively high potential, which is beneficial to shorten the charging time of the subsequent light-emitting element and make the light-emitting element light up quickly.

[0078] According to some embodiments of the present application, optionally, the brightness range of the partition display can be divided into multiple different brightness intervals. When displaying a complex picture, different partitions may be in different brightness intervals. In order to minimize the initial cross-pressure difference of the light-emitting elements in different partitions, optionally, different brightness intervals can correspond to the same initial cross-pressure value. For example, if the brightness range of the partition display is 0~1000nit, 0~1000nit can be divided into multiple different brightness intervals. For example, 0~100nit is a brightness interval, 101~200nit is a brightness interval, ..., 901~1000nit is a brightness interval. Different brightness intervals can correspond to the same initial cross-pressure value, for example, 0~100nit corresponds to the initial cross-pressure value A, 101~200nit also corresponds to the initial cross-pressure value A, ..., 901~1000nit also corresponds to the initial cross-pressure value A.

[0079] When the partitions are in different brightness ranges, the same initial voltage value A can be used to calculate the voltage value Vint of the first initialization signal.

[0080] According to some embodiments of the present application, optionally, the voltage value of the negative power supply voltage signal transmitted by the first power supply voltage signal line connected to the i-th partition may be determined according to the following steps one and two.

[0081] Step 1: Obtain target brightness of the sub-picture to be displayed in the i-th partition, where the target brightness includes average brightness or maximum brightness.

[0082] The grayscale to be displayed by each sub-pixel in the i-th partition is known, and accordingly, the brightness to be displayed by each sub-pixel in the i-th partition can also be determined. For example, if there are N sub-pixels in the i-th partition, in step 1, the average brightness of the N sub-pixels to be displayed can be calculated, or the maximum brightness of the N sub-pixels to be displayed can be selected as the target brightness of the sub-image to be displayed in the i-th partition.

[0083] Step 2: Determine the target voltage value of the negative power supply voltage signal corresponding to the current brightness interval according to the current brightness interval in which the target brightness is located and the first corresponding relationship between the brightness interval and the voltage value of the negative power supply voltage signal.

[0084] A first correspondence between brightness intervals and voltage values ​​of the negative power supply voltage signal can be predetermined, wherein different brightness intervals can correspond to different voltage values ​​of the negative power supply voltage signal to reduce power consumption. Based on the current brightness interval in which the target brightness falls and the first correspondence, the target voltage value of the negative power supply voltage signal corresponding to the current brightness interval can be determined.

[0085] In this way, the voltage value of the negative power supply voltage signal received by each partition can be flexibly adjusted according to the actual brightness to be displayed by each partition, which is conducive to reducing power consumption.

[0086] Figure 8 is a circuit diagram of a pixel circuit in a display panel provided by an embodiment of the present application. As shown in Figure 8, according to some embodiments of the present application, the display panel may optionally further include a first scan signal line S1, a second scan signal line S2, and a second initialization signal line Vref2. The sub-pixel may further include a pixel circuit 70, which is electrically connected to the first electrode of the light-emitting element D. The pixel circuit 70 may include a first driving module 701, a first initialization module 702, and a second initialization module 703. The control end of the first initialization module 702 is electrically connected to the first scan signal line S1, the first end of the first initialization module 702 is electrically connected to the first initialization signal line Vref, and the second end of the first initialization module 702 is electrically connected to the first electrode of the light-emitting element D. The first initialization module 702 can be turned on under the control of the first scan signal line S1, and transmit the first initialization signal of the first initialization signal line Vref to the first electrode of the light-emitting element D to initialize the first electrode of the light-emitting element D.

[0087] The control terminal of the second initialization module 703 is electrically connected to the second scan signal line S2, the first terminal of the second initialization module 703 is electrically connected to the second initialization signal line Vref2, and the second terminal of the second initialization module 703 is electrically connected to the control terminal of the first driving module 701. The second initialization module 703 can be used to transmit the second initialization signal of the second initialization signal line Vref2 to the control terminal of the first driving module 701 to initialize the control terminal of the first driving module 701.

[0088] In the embodiment shown in FIG8 , the second initialization signal line Vref2 can reuse the first initialization signal line Vref. That is, the first initialization signal line Vref in each partition can be connected to the first initialization module 702 and the second initialization module 703 simultaneously. The first initialization signal provided by the first initialization signal line Vref in each partition can be used not only to initialize the first electrode of the light-emitting element D but also to initialize the control terminal of the first driving module 701.

[0089] It should be noted that the pixel circuit in the embodiment of the present application is not limited to the pixel circuit shown in FIG8 , but is applicable to all pixel circuits having a first initialization signal (ie, resetting the first electrode of the light-emitting element).

[0090] Continuing to refer to FIG8 , according to some embodiments of the present application, optionally, the pixel circuit 70 may further include a data writing module 704, a threshold compensation module 705, a first light emitting control module 706, a second light emitting control module 707, and a storage capacitor Cst. Each module may include a thin film transistor. For example, the first driving module 701 includes a first transistor T1, the first initialization module 702 includes a second transistor T2, the second initialization module 703 includes a third transistor T3, the data writing module 704 includes a fourth transistor T4, the threshold compensation module 705 includes a fifth transistor T5, the first light emitting control module 706 includes a sixth transistor T6, and the second light emitting control module 707 includes a seventh transistor T7. The connection method of each thin film transistor is shown in FIG8 and will not be repeated here.

[0091] Different from the embodiment shown in FIG8 , according to other embodiments of the present application, optionally, the second initialization signal line Vref2 may not reuse the first initialization signal line Vref, that is, the second initialization signal line Vref2 and the first initialization signal line Vref are different signal lines.

[0092] FIG9 is another circuit diagram of a display panel provided in an embodiment of the present application. As shown in FIG9 , unlike the first initialization signal line Vref, which is arranged in sections, the second initialization signal line Vref2 can be arranged across the entire surface. Specifically, the second initialization signal line Vref2 connected to the pixel circuits in at least two sections F is different from the first initialization signal line Vref. The second initialization signal line Vref2 can be electrically connected to the second initialization module 703 of the pixel circuits in multiple sections F.

[0093] Thus, since the second initialization signal transmitted by the second initialization signal line Vref2 does not affect the voltage across the light-emitting element, the second initialization signal line Vref2 is electrically connected to the second initialization modules 703 of the pixel circuits in the plurality of partitions F, which facilitates the wiring of the second initialization signal line Vref2.

[0094] Based on the display panel provided in the above embodiment, the present application also provides a specific implementation of a display panel driving method. The display panel driving method can be applied to the display panel 10 provided in the above embodiment, as shown in the following embodiments.

[0095] FIG10 is a flow chart of a method for driving a display panel according to an embodiment of the present application. As shown in FIG10 , the method for driving a display panel may include the following steps:

[0096] S1001, providing different first initialization signals to first electrodes of light-emitting elements in at least two subareas through at least two first initialization signal lines;

[0097] S1002 . Provide different first voltage source signals to second electrodes of light-emitting elements in at least two subareas through at least two first voltage source signal lines.

[0098] The specific implementation process of S1001 and S1002 can be found above and will not be repeated here.

[0099] In the driving method of the display panel of the embodiment of the present application, the first initialization signal line and the first power supply voltage signal line are independently set for each partition, and the voltage value of the first initialization signal of each partition can be independently set according to the voltage value of the negative power supply voltage signal of each partition and the initial cross-voltage value corresponding to each partition. In conjunction with the change of the negative power supply voltage signal transmitted by the first power supply voltage signal line, the light-emitting elements in each partition can obtain a suitable initial cross-voltage value, which is beneficial to reducing the difference in initial cross-voltage values ​​and brightness differences of the light-emitting elements in different partitions.

[0100] FIG11 is a flow chart of S1001 in the method for driving a display panel according to an embodiment of the present application. As shown in FIG11 , S1001 provides different first initialization signals to first electrodes of light-emitting elements in at least two subareas via at least two first initialization signal lines. Specifically, the steps S1101 to S1103 may be included.

[0101] S1101 . For any i-th partition in the display panel, obtain a voltage value of a negative power supply voltage signal and a preset initial cross-voltage value provided to the i-th partition, where i is a positive integer.

[0102] S1102 : Determine a voltage value of a first initialization signal transmitted by a first initialization signal line connected to the i-th partition according to a voltage value of a negative power supply voltage signal corresponding to the i-th partition and a preset initial cross-voltage value.

[0103] The initial voltage span value is the voltage difference between the voltage value of the first initialization signal and the voltage value of the negative power supply voltage signal.

[0104] For example, the voltage value of the first initialization signal transmitted by the first initialization signal line Vref connected to the i-th partition can be calculated according to the following expression: Vint = A + ELVSS' (2)

[0105] Wherein, Vint represents the voltage value of the first initialization signal transmitted by the first initialization signal line Vref connected to the i-th partition, A represents the preset initial cross-voltage value, and ELVSS' represents the voltage value of the negative power supply voltage signal corresponding to the i-th partition.

[0106] The initial voltage-to-crossover value A can be predetermined, and its specific value can be flexibly adjusted based on actual conditions, such as display quality (e.g., brightness and / or color uniformity), although this is not limited in this embodiment of the present application. Once the voltage value ELVSS' of the negative power supply voltage signal is determined, the voltage value Vint of the first initialization signal can be determined.

[0107] S1103 : Based on the determined voltage value of the first initialization signal transmitted by the first initialization signal line corresponding to the i-th partition, provide a first initialization signal having a corresponding voltage value to the first initialization signal line corresponding to the i-th partition.

[0108] According to some embodiments of the present application, optionally, S1101, obtaining a voltage value of a negative power supply voltage signal provided to the i-th partition, may specifically include the following steps 1 and 2.

[0109] Step 1: Obtain target brightness of the sub-picture to be displayed in the i-th partition, where the target brightness includes average brightness or maximum brightness.

[0110] The grayscale to be displayed by each sub-pixel in the i-th partition is known, and accordingly, the brightness to be displayed by each sub-pixel in the i-th partition can also be determined. For example, if there are N sub-pixels in the i-th partition, in step 1, the average brightness of the N sub-pixels to be displayed can be calculated, or the maximum brightness of the N sub-pixels to be displayed can be selected as the target brightness of the sub-image to be displayed in the i-th partition.

[0111] Step 2: Determine the target voltage value of the negative power supply voltage signal corresponding to the current brightness interval according to the current brightness interval in which the target brightness is located and the first corresponding relationship between the brightness interval and the voltage value of the negative power supply voltage signal.

[0112] A first correspondence between brightness intervals and voltage values ​​of the negative power supply voltage signal can be predetermined, wherein different brightness intervals can correspond to different voltage values ​​of the negative power supply voltage signal to reduce power consumption. Based on the current brightness interval in which the target brightness falls and the first correspondence, the target voltage value of the negative power supply voltage signal corresponding to the current brightness interval can be determined.

[0113] In this way, the voltage value of the negative power supply voltage signal received by each partition can be flexibly adjusted according to the actual brightness to be displayed by each partition, which is conducive to reducing power consumption.

[0114] According to some embodiments of the present application, optionally, the brightness range of the partition display can be divided into multiple different brightness intervals. When displaying a complex picture, different partitions may be in different brightness intervals. In order to minimize the initial cross-pressure difference of the light-emitting elements in different partitions, optionally, different brightness intervals can correspond to the same initial cross-pressure value. For example, if the brightness range of the partition display is 0~1000nit, 0~1000nit can be divided into multiple different brightness intervals. For example, 0~100nit is a brightness interval, 101~200nit is a brightness interval, ..., 901~1000nit is a brightness interval. Different brightness intervals can correspond to the same initial cross-pressure value, for example, 0~100nit corresponds to the initial cross-pressure value A, 101~200nit also corresponds to the initial cross-pressure value A, ..., 901~1000nit also corresponds to the initial cross-pressure value A.

[0115] When the partitions are in different brightness ranges, the same initial voltage value A can be used to calculate the voltage value Vint of the first initialization signal.

[0116] The specific implementation methods of each step in the driving method shown in Figures 10 and 11 have been described in detail in the above product embodiments and can achieve their corresponding technical effects. For the sake of brevity, they will not be repeated here.

[0117] Based on the display panel provided in the above embodiment, the present application also provides a driver module. This driver module can be electrically connected to the display panel 10 provided in the above embodiment. Please refer to the following embodiments. For example, the driver module includes but is not limited to a display driver chip or a power supply chip.

[0118] FIG12 is a schematic diagram of a structure of a driving module provided in an embodiment of the present application. As shown in FIG12 , the driving module 1200 provided in an embodiment of the present application may include the following units:

[0119] An acquiring unit 1201 is configured to acquire, for any i-th partition in the display panel, a voltage value of a negative power supply voltage signal provided to the i-th partition and a preset initial cross-voltage value, where i is a positive integer;

[0120] a calculating unit 1202 configured to determine a voltage value of a first initialization signal transmitted by a first initialization signal line connected to the i-th partition based on a voltage value of a negative power supply voltage signal corresponding to the i-th partition and a preset initial cross-voltage value, where the initial cross-voltage value is a voltage difference between the voltage value of the first initialization signal and the voltage value of the negative power supply voltage signal;

[0121] The output unit 1203 is configured to provide a first initialization signal having a corresponding voltage value to the first initialization signal line corresponding to the i-th partition based on the determined voltage value of the first initialization signal transmitted by the first initialization signal line corresponding to the i-th partition.

[0122] Specifically, the voltage value of the negative power supply voltage signal provided by the driver module 1200 to each partition is known, and the preset initial cross-voltage value is also known. Therefore, for any i-th partition, the voltage value of the first initialization signal transmitted by the first initialization signal line connected to the i-th partition can be determined based on the voltage value of the negative power supply voltage signal corresponding to the i-th partition and the preset initial cross-voltage value.

[0123] In the driving module provided in the embodiment of the present application, the voltage value of the first initialization signal of each partition can be independently set according to the voltage value of the negative power supply voltage signal of each partition and the preset initial cross-voltage value, which can ensure that the light-emitting elements in each partition can obtain the same or similar initial cross-voltage value, which is conducive to reducing the difference in initial cross-voltage value and brightness of the light-emitting elements in different partitions.

[0124] In some embodiments, the acquisition unit 1201 is specifically used to obtain the target brightness of the sub-screen to be displayed in the i-th partition, where the target brightness includes the average brightness or the maximum brightness; and determine the target voltage value of the negative power supply voltage signal corresponding to the current brightness interval based on the current brightness interval in which the target brightness is located and the first correspondence between the brightness interval and the voltage value of the negative power supply voltage signal.

[0125] Based on the display panel and / or driving module provided in the above embodiments, accordingly, the present application also provides a display device, including the display panel and / or driving module provided in the present application. Please refer to Figure 13, which is a structural schematic diagram of the display device provided in the embodiment of the present application. The display device 1000 provided in Figure 13 includes the display panel 10 and / or driving module 1200 provided in any of the above embodiments of the present application. The embodiment of Figure 13 takes a mobile phone as an example to illustrate the display device 1000. It can be understood that the display device provided in the embodiment of the present application can be a wearable product, a computer, a television, a car display device, or other display device with a display function, and the present application does not impose specific restrictions on this. The display device provided in the embodiment of the present application has the beneficial effects of the display panel 10 provided in the embodiment of the present application. For details, please refer to the specific description of the display panel 10 in the above embodiments, and this embodiment will not be repeated here.

[0126] It should be understood that the specific circuit structures and cross-sectional structures of the display panels provided in the drawings of the embodiments of the present application are merely examples and are not intended to limit the present application. In addition, the above embodiments provided in the present application may be combined with each other unless there is any contradiction.

[0127] It should be understood that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. According to the embodiments described above in accordance with the present application, these embodiments do not describe all the details in detail, nor do they limit the application to only the specific embodiments described. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of 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.

[0128] Those skilled in the art should understand that the above embodiments are illustrative rather than restrictive. Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Based on a study of the drawings, the specification and the claims, those skilled in the art should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other structures; the quantity involves "one" but does not exclude multiple; the terms "first" and "second" are used to identify names rather than to indicate any specific order. Any figure marks in the claims should not be understood as limiting the scope of protection. The fact that certain technical features appear in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A display panel, comprising at least two partitions, at least two first power supply voltage signal lines and at least two first initialization signal lines, one partition comprising at least one sub-pixel, and the sub-pixel comprising a light-emitting element; The first electrodes of the light-emitting elements in at least two of the partitions are connected to different first initialization signal lines, the second electrodes of the light-emitting elements in at least two of the partitions are insulated from each other, and the second electrodes of the light-emitting elements in at least two of the partitions are connected to different first power supply voltage signal lines, the first initialization signal line is used to transmit a first initialization signal for initializing the first electrode of the light-emitting element, and the first power supply voltage signal line is used to transmit a negative power supply voltage signal.

2. The display panel according to claim 1, wherein: The at least two partitions include a first partition and a second partition, the first power supply voltage signal line corresponding to the first partition provides a negative power supply voltage signal of a first voltage value, and the first initialization signal line corresponding to the first partition provides a first initialization signal of a second voltage value; The first power supply voltage signal line corresponding to the second partition provides a negative power supply voltage signal with a third voltage value, and the first initialization signal line corresponding to the second partition provides a first initialization signal with a fourth voltage value; The first voltage value is different from the third voltage value, and the second voltage value is different from the fourth voltage value.

3. The display panel according to claim 2, wherein: The difference between the first voltage value and the second voltage value is a first difference, the difference between the third voltage value and the fourth voltage value is a second difference, and the difference between the first difference and the second difference is less than a preset threshold.

4. The display panel according to claim 1, wherein: The first electrodes of the light emitting elements in the same partition are connected to the same first initialization signal line, and the second electrodes of the light emitting elements in the same partition are connected to the same first power supply voltage signal line.

5. The display panel according to claim 4, wherein: The display panel includes a display area and a non-display area, the first initialization signal line includes a first sub-initialization signal line located in the display area and a second sub-initialization signal line located in the non-display area, the first electrodes of the light-emitting elements in at least two of the partitions are connected to different first sub-initialization signal lines, and different first sub-initialization signal lines are connected to different second sub-initialization signal lines.

6. The display panel according to claim 4, wherein: The first sub-initialization signal line connected to the first electrode of the light-emitting element in the same partition includes a first routing portion extending along a first direction and a second routing portion extending along a second direction, and the first routing portion is electrically connected to the second routing portion.

7. The display panel according to claim 6, wherein: The first sub-initialization signal line connected to the first electrode of the light-emitting element in the same partition includes a plurality of the first routing portions and a plurality of the second routing portions, and the plurality of the first routing portions and the plurality of the second routing portions are cross-connected to form a mesh structure.

8. The display panel according to claim 7, wherein: Along the thickness direction of the display panel, the area formed by the orthographic projection of the mesh structure includes first electrodes corresponding to N of the light-emitting elements in the partition, 1≤N≤M, M represents the number of the light-emitting elements in the partition corresponding to the mesh structure, and N and M are both positive integers.

9. The display panel according to claim 8, wherein: N＝1。 10. The display panel according to claim 6, wherein: The first sub-initialization signal line connected to the first electrode of the light-emitting element in the same partition includes a plurality of the first routing portions and one second routing portion, and the plurality of the first routing portions and one second routing portion are connected to form a comb-shaped structure.

11. The display panel according to claim 5, wherein: The display panel also includes multiple first pads, different second sub-initialization signal lines are connected to different first pads, different first pads are electrically connected to different first initialization signal output terminals of the driving module, and the first initialization signal output terminals are used to provide the first initialization signal.

12. The display panel according to claim 11, wherein: The non-display area includes a first non-display area and a second non-display area opposite to each other and a third non-display area and a fourth non-display area opposite to each other, the first non-display area, the display area and the second non-display area are sequentially arranged along a column direction of the display panel, the third non-display area, the display area and the fourth non-display area are sequentially arranged along a row direction of the display panel, and the column direction intersects the row direction; The first pad is located in the second non-display area and is electrically connected to the first initialization signal output terminal of the driving module. The second sub-initialization signal line is located in the third non-display area and / or the fourth non-display area and extends to the first pad.

13. The display panel according to claim 4, wherein: Along the thickness direction of the display panel, the display panel includes a substrate, a first metal layer, a second metal layer, a third metal layer, a fourth metal layer, and an insulating layer between any two adjacent metal layers; One of the first routing portion and the second routing portion is located in the second metal layer, and the other is located in the third metal layer or the fourth metal layer.

14. The display panel according to claim 1, wherein: For any i-th partition in the display panel, a voltage value of a first initialization signal transmitted by a first initialization signal line connected to the i-th partition is determined based on a voltage value of a negative power supply voltage signal transmitted by a first power supply voltage signal line connected to the i-th partition and a preset initial cross-voltage value, wherein the initial cross-voltage value is a voltage difference between a voltage value of the first initialization signal and a voltage value of the negative power supply voltage signal, and i is a positive integer.

15. The display panel according to claim 14, wherein: Different partitions correspond to the same initial cross-pressure value; The initial voltage across the circuit is greater than 0V.

16. The display panel according to claim 1, wherein: The display panel further includes a first scanning signal line, a second scanning signal line, and a second initialization signal line. The sub-pixel further includes a pixel circuit, which is electrically connected to the first electrode of the light-emitting element. The pixel circuit includes: A first driving module; a first initialization module, wherein a control end of the first initialization module is electrically connected to the first scanning signal line, a first end of the first initialization module is electrically connected to the first initialization signal line, and a second end of the first initialization module is electrically connected to the first electrode of the light-emitting element; a second initialization module, wherein the control end of the second initialization module is electrically connected to the second scanning signal line, the first end of the second initialization module is electrically connected to the second initialization signal line, the second end of the second initialization module is electrically connected to the control end of the first driving module, and the second initialization module is used to transmit the second initialization signal of the second initialization signal line to the control end of the first driving module to initialize the control end of the first driving module; The second initialization signal line reuses the first initialization signal line, or the second initialization signal line connected to the pixel circuits in at least two of the partitions is different from the first initialization signal line.

17. A method for driving a display panel, applied to the display panel according to any one of claims 1 to 16, the method comprising: providing different first initialization signals to the first electrodes of the light emitting elements in at least two partitions through at least two first initialization signal lines; Different first voltage source signals are provided to the second electrodes of the light emitting elements in at least two subareas through at least two first voltage source signal lines.

18. The driving method according to claim 17, wherein: The providing different first initialization signals to the first electrodes of the light emitting elements in at least two partitions through at least two first initialization signal lines comprises: For any i-th partition in the display panel, obtaining a voltage value of a negative power supply voltage signal provided to the i-th partition and a preset initial cross-voltage value, where i is a positive integer; Determine, according to the voltage value of the negative power supply voltage signal corresponding to the i-th partition and the preset initial cross-voltage value, the voltage value of the first initialization signal transmitted by the first initialization signal line corresponding to the i-th partition, wherein the initial cross-voltage value is the voltage difference between the voltage value of the first initialization signal and the voltage value of the negative power supply voltage signal; Based on the determined voltage value of the first initialization signal transmitted by the first initialization signal line correspondingly connected to the i-th partition, a first initialization signal with a corresponding voltage value is provided to the first initialization signal line correspondingly connected to the i-th partition.

19. The driving method according to claim 18, wherein: Different partitions correspond to the same initial cross-pressure value.

20. A display device comprising the display panel according to any one of claims 1 to 16.

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