A display panel driving method, device and display device

Abstract

The present invention discloses a driving method, device and display device of a display panel, wherein the display panel includes a plurality of sub-pixels, a plurality of data lines and a plurality of light-emitting control lines, wherein a plurality of sub-pixels arranged along a first direction are electrically connected to the same data line, and a plurality of sub-pixels arranged along a second direction are electrically connected to the same light-emitting control line, and at least part of the data lines overlap with at least part of the light-emitting control lines; wherein the first direction and the second direction intersect each other; the driving method includes: controlling the time period of inputting a display signal to the data line and the time point at which the level on the light-emitting control line overlapping the data line jumps from the first level to the second level to be staggered, wherein the second level is greater than the first level, and the display signal includes a display compensation signal, and the display compensation signal is used to compensate for the light-emitting brightness of the sub-pixels. The present invention provides a driving method, device and display device of a display panel, which can improve the problem of uneven display brightness of the display panel.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel driving method, device and display device. Background Art

[0002] With the continuous development of display technology, people have higher and higher requirements for display panels, especially the display quality of display panels, which is always a goal that people are constantly pursuing. However, when displaying, existing display panels have the problem of uneven display brightness. Summary of the invention

[0003] The present invention provides a display panel driving method, a display panel driving device and a display device, which can improve the problem of uneven display brightness of the display panel.

[0004] According to one aspect of the present invention, a method for driving a display panel is provided, wherein the display panel comprises a plurality of sub-pixels, a plurality of data lines and a plurality of light-emitting control lines, wherein the plurality of sub-pixels arranged along a first direction are electrically connected to the same data line, and the plurality of sub-pixels arranged along a second direction are electrically connected to the same light-emitting control line, and at least part of the data lines overlaps with at least part of the light-emitting control lines; wherein the first direction and the second direction intersect each other;

[0005] The driving method comprises:

[0006] The time period of controlling the input of the display signal to the data line and the level jump time point are staggered, the level jump time point includes the time point when the level on the light-emitting control line overlapping with the data line jumps from the first level to the second level, the second level is greater than the first level, and the display signal includes a display compensation signal, and the display compensation signal is used to compensate for the light-emitting brightness of the sub-pixel.

[0007] Optionally, a driving cycle of each of the sub-pixels includes a data writing phase and a light emitting phase, the light emitting phase includes at least two sub-light emitting phases, and there is at least one black insertion phase between two adjacent sub-light emitting phases; in the sub-light emitting phase, the light emitting control signal on the light emitting control line controls the light emitting of the sub-pixel, and in the black insertion phase, the potential on the light emitting control line is different from the potential on the light emitting control line in the sub-light emitting phase;

[0008] Controlling the time period of inputting the display signal to the data line and the time point of the level on the light-emitting control line overlapping the data line jumping from the first level to the second level to be staggered comprises: in at least one sub-light-emitting phase of the sub-pixel, inputting the display compensation signal to the data line connected to the sub-pixel, and stopping inputting the display compensation signal to the data line before the end of the sub-light-emitting phase, and writing the display compensation signal on the data line into the sub-pixel in a black insertion phase adjacent to the sub-light-emitting phase after the sub-light-emitting phase; or,

[0009] During the black insertion phase of the sub-pixel, a display compensation signal is input to the data line connected to the sub-pixel, and the display compensation signal is written into the sub-pixel.

[0010] Optionally, the display panel includes a data input switch, the output end of the data input switch is electrically connected to the data line, and the input end of the data input switch is used to receive a display signal; when the data input switch is turned on, the display signal is transmitted to the data line;

[0011] Inputting a display compensation signal to the data line connected to the sub-pixel in at least one of the sub-light-emitting phases of the sub-pixel, and stopping inputting the display compensation signal to the data line before the sub-light-emitting phase ends, comprises:

[0012] In at least one of the sub-light-emitting phases of the sub-pixel, controlling a data input switch corresponding to the data line connected to the sub-pixel to be turned on, so as to input a display compensation signal to the data line connected to the sub-pixel, and turning off the data input switch before the sub-light-emitting phase ends;

[0013] Inputting a display compensation signal to the data line connected to the sub-pixel during the black insertion phase of the sub-pixel comprises:

[0014] During the black insertion phase of the sub-pixel, the data input switch corresponding to the data line connected to the sub-pixel is controlled to be turned on, so as to input a display compensation signal to the data line connected to the sub-pixel.

[0015] Optionally, in at least one of the sub-light-emitting phases of the sub-pixel, inputting a display compensation signal to the data line connected to the sub-pixel comprises:

[0016] In the sub-light-emitting stage, a display compensation signal is sequentially input to the plurality of data lines, wherein the plurality of data lines include a first data line and a second data line, and a duration of inputting the display compensation signal to the second data line is shorter than a duration of inputting the display compensation signal to the first data line; or

[0017] In a first preset sub-light-emitting phase, inputting a display compensation signal to the data line, wherein the duration of the first preset sub-light-emitting phase is greater than the durations of other sub-light-emitting phases;

[0018] Optionally, the second data line is the last data line to input a display compensation signal in the sub-light-emitting phase, and the end time of inputting the display compensation signal to the first data line in the sub-light-emitting phase is earlier than the start time of inputting the display compensation signal to the second data line.

[0019] Optionally, during the black insertion stage of the sub-pixel, inputting a display compensation signal to the data line connected to the sub-pixel includes:

[0020] Inputting a display compensation signal to a preset data line during a preset black insertion phase;

[0021] Among them, the duration of the preset black insertion stage is greater than the duration of other black insertion stages, or the duration of inputting the display compensation signal to the preset data line in the preset black insertion stage is less than the duration of inputting the display compensation signal to the data line in the second preset sub-light-emitting stage, the second preset sub-light-emitting stage is a sub-light-emitting stage adjacent to the preset black insertion stage, and the preset data line is a data line whose time period for writing the display compensation data overlaps with the preset black insertion stage.

[0022] Optionally, the sub-pixel includes a light emitting module and a driving circuit, and the driving circuit includes a driving transistor;

[0023] Writing the display compensation signal into the sub-pixel comprises:

[0024] The display compensation signal is transmitted to the gate of the driving transistor.

[0025] Optionally, the image refresh frequency of the display panel is less than or equal to 90 Hz.

[0026] According to another aspect of the present invention, a driving device of a display panel is provided, wherein the display panel comprises a plurality of sub-pixels, a plurality of data lines and a plurality of light-emitting control lines, wherein the plurality of sub-pixels arranged along a first direction are electrically connected to the same data line, and the plurality of sub-pixels arranged along a second direction are electrically connected to the same light-emitting control line, and at least part of the data lines overlaps with at least part of the light-emitting control lines; wherein the first direction and the second direction intersect each other;

[0027] The driving device includes a control module;

[0028] The control module is used to control the time period for inputting the display signal to the data line and the time point when the level on the light-emitting control line overlapping with the data line jumps from the first level to the second level, wherein the second level is greater than the first level, and the display signal includes a display compensation signal, and the display compensation signal is used to compensate for the light-emitting brightness of the sub-pixel.

[0029] Optionally, a driving cycle of each of the sub-pixels includes a data writing phase and a light emitting phase, the light emitting phase includes at least two sub-light emitting phases, and there is at least one black insertion phase between two adjacent sub-light emitting phases; in the sub-light emitting phase, the light emitting control line controls the light emission of the sub-pixel, and in the black insertion phase, the potential on the light emitting control line is different from the potential on the light emitting control line in the sub-light emitting phase;

[0030] The control module is specifically used to input a display compensation signal to the data line connected to the sub-pixel during at least one sub-light-emitting phase of the sub-pixel, and stop inputting the display compensation signal to the data line before the end of the sub-light-emitting phase, and write the display compensation signal on the data line into the sub-pixel during a black insertion phase adjacent to the sub-light-emitting phase after the sub-light-emitting phase; or, the control module is specifically used to input a display compensation signal to the data line connected to the sub-pixel during the black insertion phase of the sub-pixel, and write the display compensation signal into the sub-pixel.

[0031] According to another aspect of the present invention, a display device is provided. The display device includes the driving device of the display panel provided by any embodiment of the present invention.

[0032] The present embodiment provides a driving method for a display panel. The driving method can avoid the second level affecting the display signal and thus affecting the display brightness of the display panel by controlling the time period for inputting a display signal to a data line and the time point when the level on a light-emitting control line overlapping with the data line jumps from a first level to a second level, thereby ensuring the uniformity of the display brightness of the display panel.

[0033] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 It is a schematic diagram of using an existing driving method to drive a display panel to display a picture;

[0036] Figure 2 is a schematic structural diagram of a display panel provided according to an embodiment of the present invention;

[0037] Figure 3 is a schematic flow chart of a method for driving a display panel provided according to an embodiment of the present invention;

[0038] Figure 4 is a schematic structural diagram of another display panel provided according to an embodiment of the present invention;

[0039] Figure 5 It is a driving timing diagram of the related technology;

[0040] Figure 6 is a schematic diagram of driving a display panel to display a picture according to a driving method provided in an embodiment of the present invention;

[0041] Figure 7 is a timing diagram of a driving cycle of a sub-pixel provided according to an embodiment of the present invention;

[0042] Figure 8 is another timing diagram of a driving cycle of a sub-pixel provided according to an embodiment of the present invention;

[0043] Fig. 9 is another timing diagram of a driving cycle of a sub-pixel provided according to an embodiment of the present invention;

[0044] Fig.10 is a driving timing diagram provided according to an embodiment of the present invention;

[0045] Fig.11 is another driving timing diagram provided according to an embodiment of the present invention;

[0046] Fig.12 is another driving timing diagram provided according to an embodiment of the present invention;

[0047] Fig.13 is another driving timing diagram provided according to an embodiment of the present invention;

[0048] Fig.14 is another driving timing diagram provided according to an embodiment of the present invention;

[0049] Fig.15 is another driving timing diagram provided according to an embodiment of the present invention;

[0050] Fig.16 is a schematic structural diagram of a sub-pixel provided according to an embodiment of the present invention;

[0051] Fig.17 is a schematic diagram of the structure of another sub-pixel provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0053] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0054] Figure 1 The schematic diagram is a schematic diagram of using an existing driving method to drive a display panel to display a picture. Figure 1 It can be seen that the display brightness in the picture is uneven, and some areas have the problem of dark display. After research and analysis, the inventor found that the reason for this problem is that the data line connected to the sub-pixel overlaps with the light-emitting control line connected to the sub-pixel. When some data lines transmit signals, the potential on the overlapping light-emitting control line suddenly rises. Due to the coupling effect of the light-emitting control line, the signal transmitted on the part of the data line changes, and the signal received by the sub-pixel connected to the part of the data line changes. When the data lines connected to other sub-pixels transmit signals, the potential on the light-emitting control signal line at the overlap does not change, that is, the signal on the data line received by other sub-pixels does not change, resulting in the problem that the light-emitting brightness of some sub-pixels is different from that of other sub-pixels, which ultimately leads to the problem of uneven display brightness of the display panel.

[0055] In order to solve the above problem, this embodiment provides a method for driving a display panel. The driving method is applicable to the display panel provided in this embodiment. Figure 2 is a schematic diagram of the structure of a display panel provided according to an embodiment of the present invention, with reference to Figure 2 The display panel provided in this embodiment includes a plurality of sub-pixels 110, a plurality of data lines D1 and a plurality of light-emitting control lines E1. The plurality of sub-pixels 110 arranged along a first direction Y are electrically connected to the same data line D1, and the plurality of sub-pixels 110 arranged along a second direction X are electrically connected to the same light-emitting control line E1, and at least part of the data lines D1 overlaps with at least part of the light-emitting control lines E1; wherein the first direction Y and the second direction X intersect with each other.

[0056] Figure 3 is a schematic flow chart of a method for driving a display panel according to an embodiment of the present invention, with reference to Figure 2 and Figure 3 The driving method provided in this embodiment includes the following steps:

[0057] S110 , input a display signal to the data line.

[0058] Specifically, the driving chip in the display panel can output a display signal, and the driving chip transmits the display signal to the sub-pixel through the data line.

[0059] S120, control the time period of inputting the display signal to the data line and the level jump time point to be staggered, the level jump time point includes the time point when the level on the light-emitting control line overlapping with the data line jumps from the first level to the second level, wherein the second level is greater than the first level, and the display signal includes a display compensation signal, which is used to compensate for the light-emitting brightness of the sub-pixel.

[0060] Specifically, the display signal also includes a display drive signal, which is used to drive the sub-pixel to emit light. Both the display drive signal and the display compensation signal will affect the display brightness of the sub-pixel. A drive cycle of the sub-pixel may include a data writing phase and a light-emitting phase. The display drive signal is written into the sub-pixel through the data line during the data writing phase. The light-emitting brightness of the sub-pixel during the light-emitting phase is determined by the display drive signal. Since the light-emitting phase is generally long, the light-emitting brightness of the sub-pixel during the light-emitting phase may change. The display compensation signal can be written into the sub-pixel during part of the light-emitting phase (black insertion phase). The display compensation signal can compensate for the brightness change of the sub-pixel during the light-emitting phase, so that the brightness change of the sub-pixel during the light-emitting phase is small, avoiding large brightness fluctuations. Exemplarily, the display compensation signal can compensate for the gate potential of the driving transistor in the sub-pixel, so that the gate potential of the driving transistor is not much different from the potential when the sub-pixel is initially emitting light, so that the light-emitting brightness of the sub-pixel is not much different from the light-emitting brightness when it is initially emitting light. When the light-emitting control line receives a first level, the sub-pixel can be in a light-emitting state, and when the light-emitting control line receives a second level, the sub-pixel can not emit light. The time period of inputting the display signal to the data line and the time point when the level on the light-emitting control line overlapping with the data line jumps from the first level to the second level are staggered, and the time point when the level on the light-emitting control line overlapping with the data line jumps from the first level to the second level may be located before or after the time period of inputting the display signal to the data line, as long as the time point of the level jump is not within the time period of inputting the display signal to the data line. Since the second level is greater than the first level, when the level on the light-emitting control line jumps from the first level to the second level, if the data line overlapping with the light-emitting control signal line is receiving the display signal at this time, the second level on the light-emitting control signal line will affect the display signal. By staggering the time point when the level on the light-emitting control line jumps from the first level to the second level and the time period of inputting the display signal to the data line, it can be avoided that the second level pulls up the display signal and affects the display brightness of the display panel.

[0061] Figure 4 is a schematic diagram of the structure of another display panel provided according to an embodiment of the present invention, referring to Figure 4 The display panel provided in this embodiment includes a data input switch M1, an output end S1 of the data input switch M1 is electrically connected to a data line D1, and an input end S2 of the data input switch M1 is used to receive a display signal; when the data input switch M1 is turned on, the display signal is transmitted to the data line D1. In the process of a data line D1 receiving a display signal, if the potential on the light-emitting control line E1 overlapping with the data line D1 rises, the rising potential will make the display signal larger. Figure 5 This is a driving timing diagram of the related technology, refer to Figure 4 and Figure 5, the light-emitting control line E1 receives the light-emitting control signal em. When the fifth switch control signal MUX5 is at a low level, the data input switch M1 receiving the fifth switch control signal MUX5 is turned on, and at this time, the data line connected to the data input switch M1 receives the display signal. When the data input switch M1 is continuously turned on, the potential on the light-emitting control line E1 overlapped by the data line D1 connected to the data input switch M1 rises, as shown in FIG. Figure 5 When the em potential changes from a low level to a high level, the signal on the light emitting control line E1 will be coupled with the signal on the overlapping data line D1, causing the display signal on the data line D1 to rise, thereby affecting the brightness of the display panel.

[0062] In this embodiment, when the potential on the light-emitting control line E1 increases, the data line D1 overlapping with the light-emitting control line E1 does not receive the display signal, thereby avoiding the display signal on the data line D1 overlapping with the potential increase on the light-emitting control line E1, thereby improving the problem of the display brightness of the sub-pixel changing due to the change of the display signal.

[0063] Figure 6 is a schematic diagram of driving a display panel to display a picture according to a driving method provided in an embodiment of the present invention, Figure 6 and Figure 1 The displayed image is the same as Figure 1 , Figure 6 The display brightness of the displayed image is more uniform. It can be seen that the driving method provided in this embodiment can prevent the signal in part of the light-emitting control line E1 from affecting the display signal on the data line D1 overlapping with the light-emitting control signal line E1, thereby making the display brightness of the display panel more uniform.

[0064] It should be noted that Figure 1 and Figure 6 The circular area of ​​the display panel in the embodiment is the display area. The display panel of the present application can be used in electronic devices with display functions such as mobile phones, computers, tablet computers, monitors or smart wearable devices.

[0065] The present embodiment provides a driving method for a display panel. The driving method can avoid the second level affecting the display signal and thus affecting the display brightness of the display panel by controlling the time period for inputting a display signal to a data line and the time point when the level on a light-emitting control line overlapping with the data line jumps from a first level to a second level, thereby ensuring the uniformity of the display brightness of the display panel.

[0066] Optional, Figure 7 is a timing diagram of a driving cycle of a sub-pixel provided according to an embodiment of the present invention, with reference to Figure 7A driving cycle of each sub-pixel includes a data writing stage t1 and a light-emitting stage t2, the light-emitting stage t2 includes at least two sub-light-emitting stages t21, and there is at least one black insertion stage t22 between two adjacent sub-light-emitting stages t21; in the sub-light-emitting stage t21, the light-emitting control signal on the light-emitting control line controls the light emission of the sub-pixel, and in the black insertion stage t22, the potential on the light-emitting control line is different from the potential on the light-emitting control line in the sub-light-emitting stage t21.

[0067] Optionally, controlling the time period for inputting a display signal to the data line and the time point when the level on the light-emitting control line overlapping the data line jumps from the first level to the second level are staggered, specifically including: in at least one sub-light-emitting stage of the sub-pixel, inputting a display compensation signal to the data line connected to the sub-pixel, and stopping inputting the display compensation signal to the data line before the end of the sub-light-emitting stage, and writing the display compensation signal on the data line into the sub-pixel in a black insertion stage adjacent to the sub-light-emitting stage after the sub-light-emitting stage.

[0068] Specifically, in the data writing stage t1, the potential on the light-emitting control line remains unchanged and is different from the potential on the light-emitting control line in the sub-light-emitting stage t21, and the sub-pixel does not emit light. In the data writing stage t1, the data line receives the display drive signal and writes the display drive signal to the sub-pixel, and the sub-pixel emits light of corresponding brightness according to the display drive signal in the sub-light-emitting stage t21. In the black insertion stage t22, the sub-pixel does not emit light. In the sub-light-emitting stage t21, the sub-pixel emits light.

[0069] In the sub-light emitting stage t21 of the sub-pixel, the display compensation signal is input into the data line as follows: the display compensation signal charges the data line. Since the sub-pixel is connected to the data line, in the sub-light emitting stage t21, the display compensation signal cannot be input into the sub-pixel and can only be retained in the data line. Therefore, in the sub-light emitting stage t21, the display compensation signal is stored in the data line.

[0070] During the sub-light-emitting stage t21, the potential on the light-emitting control line remains unchanged. Therefore, during the sub-light-emitting stage t21, the display compensation signal input to the data line will not change due to a sudden change in the potential on the light-emitting control line, thereby avoiding changes in the light-emitting brightness of the sub-pixel due to changes in the display compensation signal.

[0071] Writing the display compensation signal into the sub-pixel may specifically be writing the display compensation signal into the gate of the driving transistor of the sub-pixel. When the sub-pixel emits light, the display compensation signal cannot be written into the gate of the driving transistor, but in the black insertion stage, the sub-pixel does not emit light, and the display compensation signal can be written into the gate of the driving transistor. Therefore, in the black insertion stage, the display compensation signal on the data line can be written into the sub-pixel, so that the display compensation signal compensates for the luminous brightness of the sub-pixel, preventing the sub-pixel from having a large brightness change due to long-term luminescence.

[0072] In the related art, the display compensation signal of some sub-pixels is generally written into the data line before or after the black insertion stage, and the light control signal will change when entering the black insertion stage from the sub-light-emitting stage, so the display compensation signal on the data line will be affected by the light control signal. The scheme of this embodiment sets the period of inputting the display compensation signal to the data line in the sub-light-emitting stage, and writes the display compensation signal on the data line into the sub-pixel in the black insertion stage after the sub-light-emitting stage. On the one hand, it avoids the sudden change of the light control signal affecting the display compensation signal, and on the other hand, it avoids the writing of the display compensation signal affecting the light emission of the sub-pixel in the sub-light-emitting stage.

[0073] Optionally, controlling the time period for inputting a display signal to the data line and the time point at which the level on the light-emitting control line overlapping the data line jumps from the first level to the second level are staggered, specifically including: in the black insertion stage of the sub-pixel, inputting a display compensation signal to the data line connected to the sub-pixel, and writing the display compensation signal into the sub-pixel.

[0074] Specifically, during the black insertion stage, the potential on the light emitting control line remains unchanged. Therefore, during the black insertion stage, the display compensation signal input to the data line will not change due to the increase in the potential on the light emitting control line, thereby avoiding the sub-pixel from changing its light emitting brightness due to the change in the display compensation signal.

[0075] In the black insertion stage, since the sub-pixel does not emit light, the display compensation signal can be written into the gate of the driving transistor in the sub-pixel while the data line receives the display compensation signal, that is, the receiving end of the data line receives the display compensation signal and the output end of the data line inputs the display compensation signal into the sub-pixel at the same time. The data line can also receive the display compensation signal first, and then write the display compensation signal into the gate of the driving transistor in the sub-pixel after the reception is completed. It is sufficient as long as the data line receives the display compensation signal and the display compensation signal is written into the sub-pixel during the black insertion stage.

[0076] Optionally, in at least one sub-light-emitting phase of the sub-pixel, inputting a display compensation signal to a data line connected to the sub-pixel, and stopping inputting the display compensation signal to the data line before the end of the sub-light-emitting phase, comprises:

[0077] In at least one sub-emission phase of a sub-pixel, a data input switch corresponding to a data line connected to the sub-pixel is controlled to be turned on to input a display compensation signal to the data line connected to the sub-pixel, and the data input switch is turned off before the sub-emission phase ends.

[0078] Specifically, Figure 4The display panel in the figure exemplarily shows that one output end of the driver chip is electrically connected to five data lines D1 through five data input switches M1. The five data input switches M1 connected to the same output end of the driver chip are respectively controlled by a first switch control signal MUX1, a second switch control signal MUX2, a third switch control signal MUX3, a fourth switch control signal MUX4 and a fifth switch control signal MUX5. The driving method of the present application will be exemplarily described below by taking the data input switch M1 controlled by the first switch control signal MUX1 as an example.

[0079] Figure 8 is another timing diagram of a driving cycle of a sub-pixel provided according to an embodiment of the present invention, referring to Figure 4 and Figure 8 , Figure 4 The data input switch M1 in the display panel shown in the figure can be a P-type transistor, which is turned on at a low level and cut off at a high level. In the sub-light-emitting stage t21, when the first switch control signal MUX1 is at a low level, the data input switch M1 is turned on, and the display compensation signal can be input into the data line D1. In the black insertion stage t22, the first switch control signal MUX1 is at a high level, the data input switch M1 is turned off, and the display compensation signal stops being input into the data line D1. The driving method provided in this embodiment controls the data input switch M1 to be turned on in the sub-light-emitting stage t21 and turned off before the end of the sub-light-emitting stage t21, so that the potential on the light-emitting control line E1 remains unchanged during the process of the data line D1 receiving the display compensation signal, thereby preventing the sub-pixel 110 from changing the light-emitting brightness due to the change of the display compensation signal.

[0080] Optionally, in the black insertion stage of the sub-pixel, inputting a display compensation signal to a data line connected to the sub-pixel includes:

[0081] In the black insertion stage of the sub-pixel, the data input switch corresponding to the data line connected to the sub-pixel is controlled to be turned on, so as to input a display compensation signal to the data line connected to the sub-pixel.

[0082] Specifically, Fig. 9 is another timing diagram of a driving cycle of a sub-pixel provided according to an embodiment of the present invention, referring to Figure 4 and Fig. 9In the black insertion stage t22, the first switch control signal MUX1 is at a low level in part of the time period, so that the data input switch M1 is turned on, and the display compensation signal can be input to the data line D1 when the data input switch M1 is turned on. Setting the on-time of the data input switch M1 to be shorter than the time of the black insertion stage t22 can avoid the potential on the light emitting control line E1 from changing during the process of the data line D1 receiving the display compensation signal. The driving method provided in this embodiment can avoid the light emitting brightness of some sub-pixels 110 changing due to the change of the display compensation signal, and can improve the display effect of the display panel.

[0083] It should be noted that the on-time period of the data input switch can be located in the sub-lighting phase or in the black insertion phase by modifying the timing of the light-emitting control signal or the timing of the switch control signal of the data input switch. The timing of the light-emitting control signal can be modified by modifying the timing of the clock signal that affects the light-emitting control signal. For example, Fig.10 is a driving timing diagram provided according to an embodiment of the present invention. Figure 5 , Fig.10 The timing of the second level pulse (corresponding to the black insertion stage) of the light emitting control signal em in the embodiment is shifted leftward, so that when the light emitting control signal em changes from the first level to the second level, the data line does not receive the display compensation signal.

[0084] Optionally, in at least one sub-light-emitting stage of the sub-pixel, a display compensation signal is input to the data line connected to the sub-pixel, including: in the sub-light-emitting stage, display compensation signals are input to multiple data lines in sequence, wherein the multiple data lines include a first data line and a second data line, and the duration of the display compensation signal being input to the second data line is shorter than the duration of the display compensation signal being input to the first data line.

[0085] Specifically, setting the duration of inputting the display compensation signal to the second data line to be shorter than the duration of inputting the display compensation signal to the first data line can make the second data line still be in the sub-light-emitting stage at the time point when stopping receiving the display compensation signal, that is, the time period when the second data line receives the display compensation signal is all within the sub-light-emitting stage, thereby avoiding the second data line receiving the display compensation signal when the level on the light-emitting control line suddenly changes from the first level to the second level, and avoiding the light-emitting control signal affecting the display compensation signal.

[0086] For example, Fig.11 is another driving timing diagram provided according to an embodiment of the present invention, referring to Fig.11When the data line receives the display compensation signal, the switch control signal is at a low level. The second data line is a data line that receives the fifth switch control signal MUX5, and the first data line is a data line that receives the first switch control signal MUX1, the second switch control signal MUX2, and the fourth switch control signal MUX4.

[0087] Optionally, in at least one sub-light-emitting stage of the sub-pixel, a display compensation signal is input to the data line connected to the sub-pixel, including: in a first preset sub-light-emitting stage, a display compensation signal is input to the data line, wherein the duration of the first preset sub-light-emitting stage is greater than the duration of other sub-light-emitting stages.

[0088] Specifically, Fig.12 is another driving timing diagram provided according to an embodiment of the present invention, referring to Fig.12 , the duration of the first preset sub-light-emitting stage t21' is the duration of the first level (low level) of the light-emitting control signal em in the first preset sub-light-emitting stage t21'. The duration of the first preset sub-light-emitting stage is greater than the duration of other sub-light-emitting stages, that is, the duration of the first level of the light-emitting control signal em in the first preset sub-light-emitting stage t21' is greater than the duration of the first level of the light-emitting control signal em in other sub-light-emitting stages. The specific method of setting the duration of the first preset sub-light-emitting stage greater than the duration of other sub-light-emitting stages can be: in the first preset sub-light-emitting stage t21', the transition edge of the light-emitting control signal em jumping from the first level to the second level is set to be delayed, so that the entire opening period of the data input switch connected to the second data line is within the first preset sub-light-emitting stage t21', so that when the data line receives the display compensation signal, the potential on the light-emitting control line overlapping with the second data line remains unchanged.

[0089] It should be noted that the first level duration of the light-emitting control signal of the first preset sub-light-emitting stage t21' is greater than the first level duration of the light-emitting control signal of other sub-light-emitting stages. This can be achieved by shortening the duration of the black insertion stage after the first preset sub-light-emitting stage t21', or by shifting the black insertion stage after the first preset sub-light-emitting stage t21' backward as a whole, and this embodiment does not make any specific limitation.

[0090] Optionally, the second data line is the last data line to input the display compensation signal in the sub-light-emitting phase, and the end time of inputting the display compensation signal to the first data line in the sub-light-emitting phase is earlier than the start time of inputting the display compensation signal to the second data line.

[0091] For details, please refer to Fig.11 and Fig.12In a sub-light-emitting phase, the first switch control signal MUX1, the fourth switch control signal MUX4, the second switch control signal MUX2 and the fifth switch control signal MUX5 are sequentially input to the data input switches connected to different data lines. The data line connected to the data input switch receiving the switch control signal MUX5 is the second data line, and the data line connected to the data input switch M1 receiving the first switch control signal MUX1, the fourth switch control signal MUX4 and the second switch control signal MUX2 is the first data line.

[0092] It should be noted that Fig.11 and Fig.12 The opening sequence of the data input switches is only shown as an example and is not a limitation of the present invention. In other embodiments, the opening sequence of the data input switches may be the same as the arrangement sequence of the data lines connected thereto. For example, the data input switches corresponding to MUX1, MUX2, MUX3, MUX4 and MUX5 may be opened in sequence.

[0093] Optionally, during the black insertion stage of the sub-pixel, a display compensation signal is input to the data line connected to the sub-pixel, including: inputting a display compensation signal to a preset data line during the preset black insertion stage; wherein the duration of the preset black insertion stage is greater than the duration of other black insertion stages, and the preset data line is a data line whose time period for writing the display compensation signal overlaps with the preset black insertion stage.

[0094] Specifically, setting the duration of the preset black insertion stage to be longer than the duration of other black insertion stages can ensure that the preset data line is in the preset black insertion stage during the entire process of receiving the display compensation signal, thereby preventing the level of the light-emitting control line overlapping with the preset data line from suddenly changing from the first level to the second level during the process of the preset data line receiving the display compensation signal.

[0095] For example, Fig.13 is another driving timing diagram provided according to an embodiment of the present invention, referring to Fig.13 The duration of the light emitting control signal em in the preset black insertion stage t22' is longer than the duration of other black insertion stages, which can be achieved by setting the first level ( Fig.13 The low level in the Fig.13 The transition edge of the preset data line (high level in the data line) is advanced so that the data input switch corresponding to the preset data line is opened only after the transition is completed. The whole process of the preset data line receiving the display compensation signal is completed within the preset black insertion phase t22'.

[0096] Optionally, in the black insertion stage of the sub-pixel, a display compensation signal is input to the data line connected to the sub-pixel, including: inputting a display compensation signal to a preset data line in the preset black insertion stage; wherein the duration of inputting the display compensation signal to the preset data line in the preset black insertion stage is less than the duration of inputting the display compensation signal to the data line in the second preset sub-light-emitting stage, and the second preset sub-light-emitting stage is a sub-light-emitting stage adjacent to the preset black insertion stage.

[0097] For example, Fig.14 is another driving timing diagram provided according to an embodiment of the present invention, referring to Fig.14 The specific method of setting the duration of inputting the display compensation signal to the preset data line in the preset black insertion stage t22' to be shorter than the duration of inputting the display compensation signal to each data line in the second preset sub-light-emitting stage t23 may be: in the preset black insertion stage t22', the opening time of the data input switch corresponding to the preset data line may be delayed, so that the duration of opening the data input switch corresponding to the preset data line is shorter than the duration of opening other data input switches in the second preset sub-light-emitting stage t23, so that the display compensation signal can be received in the preset black insertion stage t22', and the potential on the light-emitting control line is prevented from increasing during the process of receiving the display compensation signal.

[0098] It should be noted that the above embodiments only exemplarily show several timing modification methods of switch control signals and light-emitting control signals, and are not intended to limit the present invention. In other embodiments, the on-period of the data input switch corresponding to the preset data line may be shifted backward as a whole so that the on-period of the data input switch is within the preset black insertion phase t22', or the on-period of the data input switch corresponding to the preset data line may be shifted forward as a whole so that the on-period of the data input switch is within the second preset sub-light-emitting phase t23. In addition, by changing the duration or position of the black insertion phase, the sub-light-emitting phase or the on-period of the data input switch, the start time of the preset data line receiving the display compensation signal may be within the black insertion phase, and the end time may be outside the black insertion phase. Fig.15 is another driving timing diagram provided according to an embodiment of the present invention, referring to Fig.15 Exemplarily, the data input switch corresponding to the fifth switch control signal MUX5 is turned on in the black insertion stage and turned off in the sub-light emitting stage after the black insertion stage.

[0099] Optional, Fig.16 is a schematic diagram of a sub-pixel structure provided according to an embodiment of the present invention, with reference to Fig.16 The sub-pixel 110 provided in this embodiment includes a light emitting module 110 and a driving circuit 120, and the driving circuit 120 includes a driving transistor DTFT; writing the display compensation signal into the sub-pixel includes: transmitting the display compensation signal to the gate of the driving transistor.

[0100] Specifically, Fig.17 is a schematic diagram of a structure of another sub-pixel provided according to an embodiment of the present invention, referring to Fig.17 , the light emitting module 110 includes a light emitting diode OLED. The size of the display compensation signal may be the same as the size of the display driving signal. During the light emitting stage, the gate potential of the driving transistor will change with the light emitting duration. When the gate of the driving transistor changes, the gate-source potential difference of the driving transistor will change. When the gate-source potential difference of the driving transistor changes greatly, the brightness of the sub-pixels in the display panel will change. In this embodiment, the display compensation signal is transmitted to the gate of the driving transistor, and the gate potential of the driving transistor can be restored to the potential when the light emitting module is just lit during part of the light emitting stage, thereby solving the problem of brightness changes of the sub-pixels in the display panel.

[0101] Optional, continue to refer to Fig.16 The driving circuit 120 also includes a data writing module 121, a compensation module 122 and a storage module 123; a first end of the data writing module 121 is connected to the data line D1, a second end of the data writing module 121 is connected to the source of the driving transistor DTFT, and a control end of the data writing module 121 is connected to the first scanning signal input end S1; a first end of the compensation module 122 is connected to the drain of the driving transistor DTFT, a second end of the compensation module 122 is connected to the gate of the driving transistor DTFT, and a control end of the compensation module 122 is connected to the first scanning signal input end S1; a first end of the storage module 123 is connected to the gate of the driving transistor DTFT, and a second end of the storage module 123 is connected to the first power supply end VDD.

[0102] In at least one sub-light-emitting phase of the sub-pixel, a display compensation signal is input to a data line connected to the sub-pixel, and input of the display compensation signal to the data line is stopped before the end of the sub-light-emitting phase, and in a black insertion phase adjacent to the sub-light-emitting phase after the sub-light-emitting phase, the display compensation signal on the data line is written into the sub-pixel, including: in at least one sub-light-emitting phase of the sub-pixel, a data writing module and a compensation module are controlled to be turned off, and in a black insertion phase adjacent to the sub-light-emitting phase after the sub-light-emitting phase, the data writing module and the compensation module are controlled to be turned on, so as to transmit the display compensation signal to the gate of the driving transistor.

[0103] For details, please refer to Fig.17 The data writing module 121 includes a first transistor T1, the compensation module 122 includes a second transistor T2, and the storage module 123 includes a storage capacitor C1. Fig.16 and Fig.17The data writing module 121 is turned off when the first transistor T1 in the data writing module 121 is turned off, and the data writing module 121 is turned on when the first transistor T1 in the data writing module 121 is turned on. The compensation module 122 is turned off when the second transistor T2 in the compensation module 122 is turned off, and the compensation module 122 is turned on when the second transistor T2 in the compensation module 122 is turned on.

[0104] Continue to refer Figure 4 , Figure 8 and Fig.17 , in at least one sub-light-emitting stage t21, the first transistor T1 in the data writing module 121 and the second transistor T2 in the compensation module 122 are turned off, and the light-emitting diode OLED in the light-emitting module 110 emits light. At the same time, the data line D1 receives the display compensation signal when the switch control signal is at a low level, but because the data writing module 121 is turned off, the display compensation signal is only written on the data line D1. In the black insertion stage t22, the third transistor T3 and the fourth transistor T4 in the light-emitting control module 124 are turned off, and the data line D1 no longer receives the display compensation signal because the data input switch M1 is turned off. When the data writing module 121 and the compensation module 122 are turned on, the display compensation signal stored in the data line D1 can be input to the gate of the driving transistor DTFT through the data writing module 121 and the compensation module 122.

[0105] Optional, continue to refer to Fig.16 , the driving circuit also includes a first light-emitting control module and a second light-emitting control module; a first end of the first light-emitting control module 124 is connected to the first power supply terminal VDD, a second end of the first light-emitting control module 124 is connected to the source of the driving transistor DTFT, and a control end of the first light-emitting control module 124 is connected to the light-emitting control line EM1; a first end of the second light-emitting control module 125 is connected to the drain of the driving transistor DTFT, a second end of the second light-emitting control module 125 is connected to the first end of the light-emitting module 110, and a control end of the second light-emitting control module 125 is connected to the light-emitting control line EM1;

[0106] In the sub-light-emitting stage, the light-emitting control signal on the light-emitting control line controls the first light-emitting control module and the second light-emitting control module to be turned on. In the black insertion stage, the light-emitting control signal on the light-emitting control line controls the first light-emitting control module and the second light-emitting control module to be turned off.

[0107] For details, please refer to Fig.17The first light control module 124 includes a third transistor T3, and the second light control module 125 includes a fourth transistor T4. When the first light control module 124 and the second light control module 125 are both turned on, the light module 110 emits light, and when the first light control module 124 and the second light control module 125 are both turned off, the light module 110 does not emit light.

[0108] Optionally, the image refresh frequency of the display panel is less than or equal to 90 Hz.

[0109] Specifically, the image refresh frequency of the display panel may be 15 Hz, 30 Hz, 60 Hz, etc. When the image refresh frequency of the display panel is low, the sub-pixel emits light for a longer time during the light-emitting stage. The longer the sub-pixel emits light, the greater the change in the gate potential of the driving transistor, thereby affecting the display effect of the display panel. The driving method provided in this embodiment is applied to a scene with a low image refresh frequency, so that when the display panel is displayed in such a scene, it can avoid the appearance of ghosting and make the display brightness of the display panel more uniform, further improving the display effect of the display panel.

[0110] Optionally, the present embodiment further provides a driving device for a display panel, wherein the display panel comprises a plurality of sub-pixels, a plurality of data lines and a plurality of light-emitting control lines, wherein the plurality of sub-pixels arranged along a first direction are electrically connected to the same data line, and the plurality of sub-pixels arranged along a second direction are electrically connected to the same light-emitting control line, and at least part of the data lines overlap with at least part of the light-emitting control lines; wherein the first direction and the second direction intersect each other;

[0111] The drive device includes a control module;

[0112] The control module is used to control the time period of inputting the display signal to the data line and the staggered level jump time point, the level jump time point includes the time point when the level on the light-emitting control line overlapping with the data line jumps from the first level to the second level, wherein the second level is greater than the first level, and the display signal includes a display compensation signal, which is used to compensate for the light-emitting brightness of the sub-pixel.

[0113] Optionally, a driving cycle of the sub-pixel includes a data writing phase and a light emitting phase, the light emitting phase includes at least two sub-light emitting phases, and there is at least one black insertion phase between two adjacent sub-light emitting phases; in the sub-light emitting phase, the light emitting control line controls the light emission of the sub-pixel, and in the black insertion phase, the potential on the light emitting control line is different from the potential on the light emitting control line in the sub-light emitting phase;

[0114] The control module is specifically used to input a display compensation signal to a data line connected to a sub-pixel during at least one sub-light-emitting phase of the sub-pixel, and stop inputting the display compensation signal to the data line before the end of the sub-light-emitting phase, and write the display compensation signal on the data line into the sub-pixel during a black insertion phase adjacent to the sub-light-emitting phase after the sub-light-emitting phase; or, the control module is specifically used to input a display compensation signal to a data line connected to the sub-pixel during the black insertion phase of the sub-pixel, and write the display compensation signal into the sub-pixel.

[0115] Optionally, the display panel includes a data input switch, the output end of the data input switch is electrically connected to the data line, and the input end of the data input switch is used to receive a display signal; when the data input switch is turned on, the display signal is transmitted to the data line;

[0116] The control module is specifically used to control the data input switch corresponding to the data line connected to the sub-pixel to be turned on during at least one sub-light-emitting phase of the sub-pixel, so as to input a display compensation signal to the data line connected to the sub-pixel, and to turn off the data input switch before the sub-light-emitting phase ends;

[0117] Optionally, the control module is specifically used to control the data input switch corresponding to the data line connected to the sub-pixel to be turned on during the black insertion stage of the sub-pixel, so as to input a display compensation signal to the data line connected to the sub-pixel.

[0118] Optionally, the control module is specifically used to input a display compensation signal to multiple data lines in sequence during a sub-light-emitting stage, wherein the multiple data lines include a first data line and a second data line, and the duration of inputting the display compensation signal to the second data line is less than the duration of inputting the display compensation signal to the first data line; or, in a first preset sub-light-emitting stage, inputting a display compensation signal to the data line, wherein the duration of the first preset sub-light-emitting stage is greater than the duration of other sub-light-emitting stages; the second data line is the last data line to input a display compensation signal during the sub-light-emitting stage, and the end time of inputting the display compensation signal to the first data line during the sub-light-emitting stage is earlier than the start time of inputting the display compensation signal to the second data line. The control module is specifically used to input a display compensation signal to a preset data line during a preset black insertion stage;

[0119] Among them, the duration of the preset black insertion stage is greater than the duration of other black insertion stages, or the duration of inputting the display compensation signal to the preset data line in the preset black insertion stage is less than the duration of inputting the display compensation signal to each data line in the second preset sub-light-emitting stage, the second preset sub-light-emitting stage is a sub-light-emitting stage adjacent to the preset black insertion stage, and the preset data line is a data line whose time period for writing the display compensation data overlaps with the preset black insertion stage.

[0120] Optionally, the sub-pixel includes a light emitting module and a driving circuit, and the driving circuit includes a driving transistor;

[0121] The control module is specifically used to transmit the display compensation signal to the gate of the driving transistor.

[0122] Optionally, the driving circuit further includes a data writing module, a compensation module and a storage module; a first end of the data writing module is connected to the data line, a second end of the data writing module is connected to the source of the driving transistor, and a control end of the data writing module is connected to the first scanning signal input end; a first end of the compensation module is connected to the drain of the driving transistor, a second end of the compensation module is connected to the gate of the driving transistor, and a control end of the compensation module is connected to the first scanning signal input end; a first end of the storage module is connected to the gate of the driving transistor, and a second end of the storage module is connected to the first power supply end;

[0123] The control module is also specifically used to control the data writing module and the compensation module to be turned off in at least one sub-light-emitting stage of the sub-pixel, and to control the data writing module and the compensation module to be turned on in a black insertion stage adjacent to the sub-light-emitting stage after the sub-light-emitting stage, so as to transmit the display compensation signal to the gate of the driving transistor.

[0124] Optionally, the driving circuit further includes a first light-emitting control module and a second light-emitting control module; a first end of the first light-emitting control module is connected to the first power supply end, a second end of the first light-emitting control module is connected to the source of the driving transistor, and a control end of the first light-emitting control module is connected to a light-emitting control line; a first end of the second light-emitting control module is connected to the drain of the driving transistor, a second end of the second light-emitting control module is connected to the first end of the light-emitting module, and a control end of the second light-emitting control module is connected to the light-emitting control line;

[0125] The control module is also specifically used for controlling the light control module to be turned on by the light control signal on the light control line in the sub-lighting stage, and to be turned off by the light control signal on the light control line in the black insertion stage.

[0126] The driving device of the display panel provided in the embodiment of the present invention has corresponding beneficial effects with the driving method of the display panel provided in any embodiment of the present invention. The technical details not detailed in this embodiment shall be detailed in the driving method of the display panel provided in any embodiment of the present invention.

[0127] This embodiment further provides a display device, which includes the driving device of the display panel provided by any embodiment of the present invention.

[0128] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0129] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for driving a display panel, characterized in that: The display panel includes a plurality of sub-pixels, a plurality of data lines and a plurality of light-emitting control lines, wherein the plurality of sub-pixels arranged along a first direction are electrically connected to the same data line, and the plurality of sub-pixels arranged along a second direction are electrically connected to the same light-emitting control line, and at least part of the data lines overlaps with at least part of the light-emitting control lines; wherein the first direction and the second direction intersect each other; and the driving method includes: Controlling the time period of inputting the display signal to the data line and the level jump time point to be staggered, the level jump time point includes the time point when the level on the light emitting control line overlapping with the data line jumps from the first level to the second level, the second level is greater than the first level, the display signal includes a display compensation signal, and the display compensation signal is used to compensate the light emitting brightness of the sub-pixel; A driving cycle of each of the sub-pixels includes a data writing phase and a light emitting phase, the light emitting phase includes at least two sub-light emitting phases, and there is at least one black insertion phase between two adjacent sub-light emitting phases; in the sub-light emitting phase, the light emitting control signal on the light emitting control line controls the light emitting of the sub-pixel, and in the black insertion phase, the potential on the light emitting control line is different from the potential on the light emitting control line in the sub-light emitting phase; Controlling the time period of inputting the display signal to the data line and the time point of level jump to be staggered comprises: In at least one of the sub-light-emitting phases of the sub-pixel, a display compensation signal is input to the data line connected to the sub-pixel, and before the end of the sub-light-emitting phase, the display compensation signal is stopped from being input to the data line, and in a black insertion phase adjacent to the sub-light-emitting phase after the sub-light-emitting phase, the display compensation signal on the data line is written into the sub-pixel; or During the black insertion phase of the sub-pixel, a display compensation signal is input to the data line connected to the sub-pixel, and the display compensation signal is written into the sub-pixel.

2. The driving method according to claim 1, characterized in that: The display panel comprises a data input switch, the output end of the data input switch is electrically connected to the data line, and the input end of the data input switch is used to receive a display signal; when the data input switch is turned on, the display signal is transmitted to the data line; Inputting a display compensation signal to the data line connected to the sub-pixel in at least one of the sub-light-emitting phases of the sub-pixel, and stopping inputting the display compensation signal to the data line before the sub-light-emitting phase ends, comprises: In at least one of the sub-light-emitting phases of the sub-pixel, controlling a data input switch corresponding to the data line connected to the sub-pixel to be turned on, so as to input a display compensation signal to the data line connected to the sub-pixel, and turning off the data input switch before the sub-light-emitting phase ends; Inputting a display compensation signal to the data line connected to the sub-pixel during the black insertion phase of the sub-pixel comprises: During the black insertion phase of the sub-pixel, the data input switch corresponding to the data line connected to the sub-pixel is controlled to be turned on, so as to input a display compensation signal to the data line connected to the sub-pixel.

3. The driving method according to claim 1, characterized in that: In at least one of the sub-light-emitting phases of the sub-pixel, inputting a display compensation signal to the data line connected to the sub-pixel comprises: In the sub-light-emitting stage, a display compensation signal is sequentially input to the plurality of data lines, wherein the plurality of data lines include a first data line and a second data line, and a duration of inputting the display compensation signal to the second data line is shorter than a duration of inputting the display compensation signal to the first data line; or In a first preset sub-light-emitting phase, a display compensation signal is input to the data line, wherein the duration of the first preset sub-light-emitting phase is greater than the durations of other sub-light-emitting phases.

4. The driving method according to claim 3, characterized in that: The second data line is the last data line to input the display compensation signal in the sub-light-emitting phase, and the end time of inputting the display compensation signal to the first data line in the sub-light-emitting phase is earlier than the start time of inputting the display compensation signal to the second data line.

5. The driving method according to claim 1, characterized in that: In the black insertion stage of the sub-pixel, inputting a display compensation signal to the data line connected to the sub-pixel comprises: Inputting a display compensation signal to a preset data line during a preset black insertion phase; Among them, the duration of the preset black insertion stage is greater than the duration of other black insertion stages, or the duration of inputting the display compensation signal to the preset data line in the preset black insertion stage is less than the duration of inputting the display compensation signal to the data line in the second preset sub-light-emitting stage, the second preset sub-light-emitting stage is a sub-light-emitting stage adjacent to the preset black insertion stage, and the preset data line is a data line whose time period for writing the display compensation data overlaps with the preset black insertion stage.

6. The driving method according to any one of claims 1 to 5, characterized in that: The sub-pixel includes a light emitting module and a driving circuit, and the driving circuit includes a driving transistor; Writing the display compensation signal into the sub-pixel comprises: The display compensation signal is transmitted to the gate of the driving transistor.

7. The driving method according to any one of claims 1 to 5, characterized in that: The image refresh frequency of the display panel is less than or equal to 90 Hz.

8. A driving device for a display panel, characterized in that: The display panel includes a plurality of sub-pixels, a plurality of data lines and a plurality of light-emitting control lines, wherein the plurality of sub-pixels arranged along a first direction are electrically connected to the same data line, and the plurality of sub-pixels arranged along a second direction are electrically connected to the same light-emitting control line, and at least part of the data lines overlaps with at least part of the light-emitting control lines; wherein the first direction and the second direction intersect each other; The driving device includes a control module; The control module is used to control the time period of inputting the display signal to the data line and the level jump time point to be staggered, the level jump time point includes the time point when the level on the light emitting control line overlapping with the data line jumps from the first level to the second level, wherein the second level is greater than the first level, and the display signal includes a display compensation signal, and the display compensation signal is used to compensate the light emitting brightness of the sub-pixel; A driving cycle of each of the sub-pixels includes a data writing phase and a light emitting phase, the light emitting phase includes at least two sub-light emitting phases, and there is at least one black insertion phase between two adjacent sub-light emitting phases; in the sub-light emitting phase, the light emitting control line controls the light emission of the sub-pixel, and in the black insertion phase, the potential on the light emitting control line is different from the potential on the light emitting control line in the sub-light emitting phase; The control module is specifically used to input a display compensation signal to the data line connected to the sub-pixel during at least one sub-light-emitting phase of the sub-pixel, and stop inputting the display compensation signal to the data line before the end of the sub-light-emitting phase, and write the display compensation signal on the data line into the sub-pixel during a black insertion phase adjacent to the sub-light-emitting phase after the sub-light-emitting phase; or, the control module is specifically used to input a display compensation signal to the data line connected to the sub-pixel during the black insertion phase of the sub-pixel, and write the display compensation signal into the sub-pixel.

9. A display device, characterized in that: A driving device for a display panel comprising the method of claim 8.

Images