A driving method of a display panel, a driving controller and a display device

Abstract

The application provides a display panel driving method, a driving controller and a display device, and relates to the technical field of display, and aims to solve the problem that the current display panel produces screen flickering phenomenon in the process of switching the light adjusting mode. The method comprises the following steps: obtaining a starting luminance value and a current luminance value of the display panel; judging the size relationship among the starting luminance value, the current luminance value and a luminance threshold value; in the case that the luminance threshold value is located between the starting luminance value and the current luminance value, determining a target duty cycle of an enabling driving signal of a transition frame picture according to a starting duty cycle of the enabling driving signal corresponding to a starting frame picture and a current duty cycle of the enabling driving signal corresponding to a current frame picture, wherein the target duty cycle is between the starting duty cycle and the current duty cycle; and generating a target enabling driving signal according to the target duty cycle, wherein the target enabling signal is used for driving a light-emitting driving transistor to control the display of the transition frame picture, and the light-emitting driving transistor is used for connecting the light-emitting device in series.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a driving method, driving controller and display device for a display panel. Background Technology

[0002] Currently, with the continuous advancement of display technology, the requirements for display panel performance are gradually increasing. Typically, display panels use DC (Direct Current) dimming in the high-brightness range and PWM (Pulse Width Modulation) dimming in the low-brightness range, switching between different dimming modes according to the screen brightness. This can easily lead to sudden changes in the number of pulse signals during dimming mode switching, causing screen flickering. Furthermore, as the refresh rate increases, the flickering gradually worsens, affecting the display panel's performance and resulting in a mismatch between high display quality and high refresh rate. Summary of the Invention

[0003] This application provides a display panel driving method, driving controller, and display device, which relate to the field of display technology, to solve the problem that screen flickering occurs during the switching of dimming modes in current display panels, affecting the display effect.

[0004] A first aspect of this application provides a method for driving a display panel, comprising:

[0005] Obtain the initial brightness value and the current brightness value of the display panel, wherein the display time of the initial frame corresponding to the initial brightness value is before the display time of the current frame corresponding to the current brightness value;

[0006] Determine the relationship between the initial brightness value, the current brightness value, and the brightness threshold;

[0007] When the brightness threshold is between the initial brightness value and the current brightness value, the target duty cycle of the enable drive signal for the transition frame is determined based on the initial duty cycle of the enable drive signal corresponding to the initial frame and the current duty cycle of the enable drive signal corresponding to the current frame. The display time of the transition frame is after the display time of the initial frame, and the target duty cycle is between the initial duty cycle and the current duty cycle.

[0008] Based on the target duty cycle, a target enable drive signal is generated, wherein the target enable signal is used to drive the light-emitting drive transistor to control the display of the transition frame image, and the light-emitting drive transistor is used as a series light-emitting device.

[0009] In some implementations, determining the target duty cycle of the transition frame includes:

[0010] Obtain the starting pulse count of the enable drive signal corresponding to the starting frame and the current pulse count of the enable drive signal corresponding to the current frame;

[0011] Determine the magnitude of the initial pulse number and the current pulse number;

[0012] If the difference between the initial pulse count and the current pulse count is greater than the pulse count threshold, the target duty cycle of the transition frame is determined based on the initial duty cycle and the current duty cycle.

[0013] In some implementations, generating a target enable drive signal based on the target duty cycle includes:

[0014] Based on the current brightness value and the target duty cycle, the target pulse number of the transition frame is determined, and the target pulse number is located between the starting pulse number and the current pulse number;

[0015] The target enable drive signal is generated based on the target duty cycle and the target pulse number.

[0016] In some implementations, at least one transition frame is included between the display time of the starting frame and the display time of the current frame.

[0017] In some implementations, when there are at least two transition frames between the display time of the starting frame and the display time of the current frame, the target duty cycle of the transition frame whose display time is closer to the starting frame is less than the target duty cycle of the transition frame whose display time is farther from the starting frame.

[0018] In some embodiments, the driving method for the display panel further includes:

[0019] When both the initial brightness value and the current brightness value are greater than the brightness threshold, a voltage adjustment signal is generated based on the current brightness value to control the display brightness of the current frame. The voltage adjustment signal is used to apply a driving voltage to the light-emitting device.

[0020] In some embodiments, the driving method for the display panel further includes:

[0021] When both the initial brightness value and the current brightness value are less than the brightness threshold, a current enable drive signal is generated based on the current duty cycle and the current pulse count. The current enable drive signal is used to drive the light-emitting transistor to control the display of the current frame.

[0022] In some embodiments, the driving method for the display panel further includes:

[0023] The response duration of the display panel is obtained, wherein the response duration is the duration between the time when the current brightness value is obtained and the time when the current frame is displayed;

[0024] The display duration of the transition frame is determined based on the response duration, wherein the display duration of the transition frame is less than or equal to the response duration.

[0025] In some implementations, determining the display duration of the transition frame based on the response duration includes:

[0026] Obtain the display duration of the current frame;

[0027] The display duration of the transition frame is determined based on the response duration and the display duration of the current frame, wherein the display duration of the transition frame is less than the sum of the response duration and the display duration of the current frame.

[0028] In some embodiments, the driving method for the display panel further includes:

[0029] The number of transition frames is determined based on the display duration of the transition frame.

[0030] The display duration of the transition frame is positively correlated with the number of transition frames.

[0031] In some implementations, determining the target duty cycle of the transition frame includes:

[0032] The target duty cycle for each transition frame is determined based on the initial duty cycle, the current duty cycle, and the number of transition frames.

[0033] When there are at least two transition frames, the number of transition frames is negatively correlated with the difference in the target duty cycle between two adjacent transition frames.

[0034] A second aspect of this application provides a drive controller, including:

[0035] A memory containing computer programs;

[0036] A processor, configured to implement the steps of the driving method for a display panel as described in any of the first aspects above when executing the computer program.

[0037] A third aspect of this application provides a display device, comprising:

[0038] The drive controller as described in the second aspect above;

[0039] The display panel is electrically connected to the drive controller.

[0040] The drive controller is used to provide a target enable drive signal to the display panel during the execution of the drive method for the display panel as described in any of the first aspects above.

[0041] This application embodiment compares the initial brightness value, current brightness value, and brightness threshold of the display panel. When the brightness threshold is between the initial brightness value and the current brightness value, it determines that the initial frame and the current frame correspond to different dimming modes, and the number of pulse signals between them is different. This results in a large difference between the initial duty cycle and the current duty cycle when the difference between the initial brightness value and the current brightness value is small, leading to a higher probability of screen flicker. By adding a transition frame after the initial frame, the target duty cycle of the transition frame is positioned between the initial duty cycle and the current duty cycle, thereby creating a transition during brightness adjustment, reducing the duty cycle adjustment amplitude of a single dimming, alleviating screen flicker, and improving the display effect of the display panel. Attached Figure Description

[0042] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A schematic flowchart illustrating a driving method for a display panel provided in an embodiment of this application;

[0044] Figure 2 A schematic diagram of a driving circuit for a display panel driving method provided in an embodiment of this application;

[0045] Figure 3 A schematic timing diagram of a driving circuit for a driving method of a display panel provided in an embodiment of this application;

[0046] Figure 4 A schematic structural diagram of a drive controller provided in an embodiment of this application;

[0047] Figure 5 This is a schematic structural diagram of a display device provided in an embodiment of this application. Detailed Implementation

[0048] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application as detailed in the claims. In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways, and the apparatus embodiments described below are merely exemplary.

[0049] A first aspect of this application provides a method for driving a display panel. Figure 1 This is a schematic flowchart illustrating a driving method for a display panel provided in an embodiment of this application. Figure 1 As shown, the driving method for the display panel includes:

[0050] Step S110: Obtain the initial brightness value and the current brightness value of the display panel, wherein the display time of the initial frame corresponding to the initial brightness value is before the display time of the current frame corresponding to the current brightness value.

[0051] For example, the initial brightness value and the current brightness value can be determined based on the brightness data of the electronic device with brightness adjustment function to which the display panel belongs, such as a mobile phone, television, or computer. The initial brightness value and the current brightness value can be obtained by reading the brightness data corresponding to the position of the touch button in the brightness adjustment area of ​​the display panel. The display panel's brightness data can be obtained by receiving brightness adjustment commands input by the user via mouse, screen touch, or voice.

[0052] Step S120: Determine the relationship between the starting brightness value, the current brightness value, and the brightness threshold.

[0053] For example, the brightness threshold can be the brightness at which the display panel switches dimming modes, where different dimming modes correspond to different numbers of pulse signals. The brightness threshold can be determined based on the display panel model.

[0054] Step S130: When the brightness threshold is between the initial brightness value and the current brightness value, determine the target duty cycle of the enable drive signal of the transition frame based on the initial duty cycle of the enable drive signal corresponding to the initial frame and the current duty cycle of the enable drive signal corresponding to the current frame. The display time of the transition frame is after the display time of the initial frame, and the target duty cycle is between the initial duty cycle and the current duty cycle.

[0055] For example, Figure 2 This is a schematic diagram of a driving circuit for a display panel driving method provided in an embodiment of this application. Figure 2 As shown, a driving circuit is provided, including a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, a seventh transistor T7, a capacitor C, and a light-emitting diode (OLED). The third transistor T3 is a driving transistor, the first transistor T1 and the fifth transistor T5 are light-emitting driving transistors, the ELVDD signal is the anode voltage of the light-emitting device, the ELVSS signal is the cathode voltage of the light-emitting device, the Data signal is the data signal of the third transistor T3, used to control the on / off state of the third transistor T3, the EM signal is an enable driving signal, used to control the on / off state of the first transistor T1 and the fifth transistor T5, the Reset1 signal is a first reset signal, the Reset2 signal is a second reset signal, the Gate signal is a gate signal, and the Vinit signal is a frame start signal.

[0056] For example, Figure 3 This is a schematic timing diagram of a driving circuit for a display panel driving method provided in an embodiment of this application. Figure 3 As shown, Figure 2 The driving process of the driving circuit shown can be divided into three stages: Q1, Q2 and Q3. Q1 is the reset stage, Q2 is the compensation stage and Q3 is the light emission stage.

[0057] For example, in combination Figure 2 and Figure 3 Understandably, in the Q1 stage of the driving circuit, Reset1 and Reset2 signals are high-level signals, the sixth transistor T6 is in the on state, capacitor C is reset, the seventh transistor T7 is in the on state, and the OLED is reset. In the Q2 stage, Reset2 and Gate signals are high-level signals, the second transistor T2, the fourth transistor T4, and the seventh transistor T7 are in the on state, capacitor C is in the charging state, and the Data signal is written to capacitor C. In the Q13 stage, the EM signal is high-level signal, and other signals are low-level signals. The first transistor T1 and the fifth transistor T5 are in the on state, forming the light-emitting channel of the OLED. The Data signal controls the on-state of the third transistor T3, controls the input current of the OLED, and drives the OLED to emit light.

[0058] For example, the display time of the transition frame can be between the display time of the starting frame and the display time of the current frame, or the display time of the current frame can be between the display time of the starting frame and the display time of the transition frame.

[0059] It should be noted that DC dimming adjusts display brightness by regulating the power of the light-emitting device, so the pulse count is usually 1. The pulse count for PWM dimming, on the other hand, can be determined based on the refresh rate requirements of the display panel. In PWM dimming mode, the first pulse cycle of the enable drive signal within a single frame is applied during the reset and compensation phases. The remaining pulse cycles are used to control the switching on and off of the first transistor T1 and the fifth transistor T5 during the light-emitting phase, thereby controlling the on / off alternation duration of the OLED. The duty cycle of each pulse cycle of the same enable drive signal within a single frame is the same.

[0060] For example, the display brightness of the transition frame is the same as that of the current frame.

[0061] Step S140: Generate a target enable drive signal according to the target duty cycle, wherein the target enable signal is used to drive the light-emitting drive transistor to control the display of the transition frame image, and the light-emitting drive transistor is used as a series light-emitting device.

[0062] By comparing the initial brightness value, current brightness value, and brightness threshold of the display panel, when the brightness threshold is between the initial brightness value and the current brightness value, it is determined that the initial frame and the current frame correspond to different dimming modes, and the number of pulse signals between them is different. This results in a large difference between the initial duty cycle and the current duty cycle when the difference between the initial brightness value and the current brightness value is small, leading to a higher probability of screen flicker. By adding a transition frame after the initial frame, the target duty cycle of the transition frame is positioned between the initial duty cycle and the current duty cycle. This creates a transition during brightness adjustment, reduces the duty cycle adjustment amplitude of a single dimming, alleviates screen flicker, and improves the display effect of the display panel.

[0063] In some feasible implementations, determining the target duty cycle of the transition frame includes: obtaining the initial pulse count of the enable drive signal corresponding to the starting frame and the current pulse count of the enable drive signal corresponding to the current frame; determining the magnitude of the initial pulse count and the current pulse count; and, if the difference between the initial pulse count and the current pulse count is greater than the pulse count threshold, determining the target duty cycle of the transition frame based on the initial duty cycle and the current duty cycle.

[0064] It should be noted that PWM dimming controls the duration of screen illumination by combining the number of pulses and the duty cycle within a single frame. Based on the phenomenon of visual persistence in the human eye, users can observe different display brightness under different illumination durations, thereby achieving brightness adjustment of the display screen.

[0065] It should be noted that in existing driver integrated circuits, this can be achieved through:

[0066] D=(YH×N) / Y (1)

[0067] Determine the target duty cycle. Here, D is the duty cycle of the enable drive signal, Y is the vertical resolution of the display panel, N is the number of pulses of the enable drive signal, and H is the total duration required for the reset and compensation phases determined according to the timing of the driver integrated circuit. The duty cycle is the ratio of the on-time of the pulse signal to the on-time period within one pulse cycle, and the number of pulses is the number of pulse cycles per unit time. According to equation (1), the number of pulses and the duty cycle are negatively correlated. The larger the number of pulses, the smaller the range of the duty cycle, which limits the upper limit of the duty cycle, increases the difference in duty cycle between PWM dimming and DC dimming, and increases the probability of screen flicker.

[0068] For example, if the brightness threshold is between the initial brightness value and the current brightness value, the dimming mode corresponding to the initial frame is DC dimming, and the dimming mode corresponding to the current frame is PWM dimming. The initial pulse count is 1, and the pulse count of the display panel in PWM mode is set to 32, meaning the current pulse count is 32. The initial duty cycle is 99%. Based on the current brightness value and the current pulse count, the current duty cycle can be determined to be 58%. Based on the difference between the initial duty cycle and the current duty cycle, the target duty cycle can be determined to be 76%. Based on the target duty cycle and the current brightness value, the target pulse count is determined to be 16.

[0069] Therefore, when the difference between the initial pulse count and the current pulse count is small, the screen flicker caused by the switching between PWM dimming and DC dimming can be considered to be mild and will not affect the display effect of the display panel. When the difference between the initial pulse count and the current pulse count is greater than the preset pulse count threshold, the duty cycle transition can be achieved by setting a transition frame. By filtering the pulse count, the amount of calculation can be reduced, and the time between the initial frame and the current frame can be shortened, which can improve the display speed of the display panel and thus improve the display performance of the display panel.

[0070] In some feasible implementations, generating a target enable drive signal based on the target duty cycle includes: determining the target pulse number of the transition frame based on the current brightness value and the target duty cycle, wherein the target pulse number is between the initial pulse number and the current pulse number; and generating the target enable drive signal based on the target duty cycle and the target pulse number.

[0071] For example, the target pulse number of the transition frame with the same display brightness as the current frame can be calculated using Equation (1) based on the current brightness value and the target duty cycle.

[0072] By setting the target pulse count between the starting pulse count and the current pulse count, the target duty cycle of the transition frame is positioned between the starting duty cycle and the current duty cycle. This allows the pulse count of the displayed image to transition during brightness adjustment, reducing the duty cycle adjustment amplitude of a single dimming cycle and alleviating screen flicker. By deriving the target pulse count from the current brightness value and the target duty cycle, the display brightness of the transition frame can be made the same as that of the current frame, thus ensuring the uniformity of the display brightness and improving the display panel's display effect.

[0073] In some feasible implementations, at least one transition frame is included between the display time of the starting frame and the display time of the current frame.

[0074] If the transition frame is displayed later than the current frame, a switch between the starting and current frames will occur before the transition frame is displayed. This results in multiple duty cycle increases and decreases during the transition, increasing the frequency of duty cycle changes, raising the probability of screen flicker, and impacting the display panel's performance. By setting a transition frame between the starting and current frames, the transition is reduced to only duty cycle increases or decreases, ensuring a smooth duty cycle transition, further suppressing screen flicker, and improving the display effect.

[0075] In some feasible implementations, when there are at least two transition frames between the display time of the starting frame and the display time of the current frame, the target duty cycle of the transition frame whose display time is closer to the starting frame is less than the target duty cycle of the transition frame whose display time is farther from the starting frame.

[0076] By setting at least two transition frames between the starting frame and the current frame, and ensuring that the target duty cycle of the transition frame whose display time is closer to the starting frame is less than that of the transition frame whose display time is farther from the starting frame, the target duty cycle of each transition frame can form a stepped transition, further reducing the difference in duty cycle between adjacent frames, suppressing screen flicker, and thus improving the display effect.

[0077] In some feasible implementations, the driving method for the display panel further includes: when both the initial brightness value and the current brightness value are greater than a brightness threshold, generating a voltage adjustment signal based on the current brightness value to control the display brightness of the current frame, wherein the voltage adjustment signal is used to apply a driving voltage to the light-emitting device.

[0078] When both the initial brightness value and the current brightness value are greater than the brightness threshold, the display panel can be considered to be in the DC dimming range. Therefore, by generating a voltage adjustment signal, the voltage applied to both ends of the light-emitting device can be adjusted to directly adjust the display brightness of the screen, thereby reducing the difficulty of adjusting the display brightness of the display panel, reducing the probability of screen flicker, and thus improving the display effect of the display panel.

[0079] In some feasible implementations, the driving method for the display panel further includes: when both the initial brightness value and the current brightness value are less than a brightness threshold, generating a current enable driving signal based on the current duty cycle and the current pulse number, wherein the current enable driving signal is used to drive the light-emitting transistor to control the display of the current frame.

[0080] When both the initial brightness value and the current brightness value are less than the brightness threshold, the display panel can be considered to be in the PWM dimming range. Therefore, by generating a current enable drive signal and changing the duty cycle of the display screen to adjust the display brightness, color shift of the display screen can be suppressed, dimming accuracy can be improved, the adjustment frequency of display brightness can be increased, the probability of screen flicker can be reduced, and thus the display performance of the display panel can be improved.

[0081] In some feasible implementations, the driving method for the display panel further includes: obtaining the response duration of the display panel, wherein the response duration is the duration between the acquisition time of the current brightness value and the display time of the current frame; and determining the display duration of the transition frame based on the response duration, wherein the display duration of the transition frame is less than or equal to the response duration.

[0082] During the brightness adjustment process, the response time of the display panel is the time between the moment the current brightness value is obtained and the moment the current frame is displayed. By setting a transition frame within the time interval of the response time, the display time of the transition frame can be located between the display time of the starting frame and the display time of the current frame. This avoids the transition frame occupying the display time of the current frame and affecting the display of the current frame, thereby improving the display performance of the display panel.

[0083] In some feasible implementations, determining the display duration of the transition frame based on the response duration includes: obtaining the display duration of the current frame; and determining the display duration of the transition frame based on the response duration and the display duration of the current frame, wherein the display duration of the transition frame is less than the sum of the response duration and the display duration of the current frame.

[0084] For example, if the difference between the initial brightness value and the current brightness value is greater than a preset threshold, at least two transition frames can be set to ensure a smooth transition in the duty cycle between the initial frame and the current frame, further suppressing screen flicker. If at least two transition frames are included between the display time of the initial frame and the display time of the current frame, the total duration required to display the transition frames can be determined based on the number of transition frames. The total duration required to display the transition frames can be compared with the response time. If the total duration required to display the transition frames is greater than the response time, the display time of the current frame is obtained. The ratio of the difference between the total duration required to display the transition frames and the response time to the display time of the current frame is then obtained. If this ratio is less than a preset ratio, it can be considered that appropriately shortening the display time of the current frame has little impact on its display effect. Displaying the transition frames within the current frame's display time period can improve display performance during the transition between the initial frame and the current frame, suppressing screen flicker. If the ratio is greater than the preset ratio, it can be considered that shortening the display time of the current frame has a significant impact on the display effect of the current frame. In order to ensure the normal display of the current frame, it is necessary to shorten the total display time of the transition frame.

[0085] Determining the display duration of the transition frame based on the response time and the display duration of the current frame facilitates the full display of the transition frame, improves the ability to suppress screen flicker, avoids affecting the display effect of the current frame, and improves the display performance of the display panel.

[0086] In some feasible implementations, the driving method for the display panel further includes: determining the number of transition frames based on the display duration of the transition frame; wherein the display duration of the transition frame is positively correlated with the number of transition frames.

[0087] Based on the positive correlation between the display duration and the number of transition frames, the number of transition frames can be determined according to the display duration. This allows for maximizing the number of transition frames within the display duration, increasing the target duty cycle, and shortening the difference in target duty cycle between adjacent transition frames. This results in a smooth transition between different transition frames, further improving the display panel's ability to suppress screen flicker and enhancing its display performance.

[0088] In some feasible implementations, determining the target duty cycle of the transition frame includes: determining the target duty cycle of each transition frame based on the initial duty cycle, the current duty cycle, and the number of transition frames; in the case of at least two transition frames, the number of transition frames is negatively correlated with the difference in the target duty cycle of two adjacent transition frames.

[0089] For example, the number of transition frames can be determined based on the display duration of the transition frame, and the difference between the initial duty cycle and the current duty cycle and the number of transition frames can be used to make the difference in the target duty cycle of adjacent transition frames equal.

[0090] The more transition frames there are, the more refined the target duty cycle can be based on the difference between the initial duty cycle and the current duty cycle. By determining the target duty cycle for each transition frame based on the initial duty cycle, the current duty cycle, and the number of transition frames, the difference in target duty cycle between transition frames can be reduced, enhancing the display panel's ability to suppress screen flicker and thus further improving the display panel's performance.

[0091] A second aspect of this application provides a drive controller. Figure 4 This is a schematic structural diagram of a drive controller provided in an embodiment of this application. Figure 4 As shown, the drive controller 100 includes: a memory 110 storing a computer program 111; and a processor 120 executing the computer program 111 to implement the steps of the drive method for the display panel as described in any of the first aspects above.

[0092] By comparing the relationship between the initial brightness value, the current brightness value, and the brightness threshold of the display panel, it is determined that when the brightness threshold is between the initial brightness value and the current brightness value, the initial frame and the current frame correspond to different dimming modes, and the number of pulse signals between them is different. This results in a large difference between the initial duty cycle and the current duty cycle when the difference between the initial brightness value and the current brightness value is small, leading to a higher probability of screen flicker. By adding a transition frame after the initial frame, the target duty cycle of the transition frame is positioned between the initial duty cycle and the current duty cycle. This creates a transition during brightness adjustment, reduces the duty cycle adjustment amplitude of a single dimming, alleviates screen flicker, and improves the display effect of the display panel.

[0093] A third aspect of the embodiments of this application provides a display device. Figure 5 This is a schematic structural diagram of a display device provided in an embodiment of this application. Figure 5 As shown, the display device 200 includes: a drive controller 100 as described in the second aspect above; a display panel 300 electrically connected to the drive controller 100; the drive controller 100 is used to provide a target enable drive signal to the display panel 300 during the execution of a drive method for the display panel as described in any of the first aspects above.

[0094] The display device 200 formed by the drive controller 100 can form a duty cycle transition during the process of adjusting the display brightness, thereby suppressing screen flicker caused by sudden changes in duty cycle and improving the display performance of the display panel.

[0095] It should be noted that the display devices provided in the embodiments of this application may include smartphones, tablets, laptops, televisions, and smart wearable display devices, etc. Smart wearable display devices may include smartwatches, etc., and the embodiments of this application do not make specific limitations.

[0096] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0097] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A driving method of a display panel, characterized by, The method comprises: obtaining a starting luminance value and a current luminance value of a display panel, wherein a display time of a starting frame picture corresponding to the starting luminance value is before a display time of a current frame picture corresponding to the current luminance value; judging a size relationship of the starting luminance value, the current luminance value and a luminance threshold value; in a case where the luminance threshold value is between the starting luminance value and the current luminance value, determining a target duty cycle of an enabling driving signal of a transition frame picture according to a starting duty cycle of the enabling driving signal corresponding to the starting frame picture and a current duty cycle of the enabling driving signal corresponding to the current frame picture, wherein the display time of the transition frame picture is after the display time of the starting frame picture, the target duty cycle is between the starting duty cycle and the current duty cycle, and a display luminance of the transition frame picture is the same as a display luminance of the current frame picture; generating a target enabling driving signal according to the target duty cycle, wherein the target enabling signal is used to drive a light-emitting driving transistor to control the display of the transition frame picture, and the light-emitting driving transistor is used to serially connect light-emitting devices; wherein the generating of the target enabling driving signal according to the target duty cycle comprises: obtaining a starting pulse number of the enabling driving signal corresponding to the starting frame picture and a current pulse number of the enabling driving signal corresponding to the current frame picture; determining a target pulse number of the transition frame picture which has the same display luminance as the current frame picture according to the current luminance value and the target duty cycle, wherein the target pulse number is between the starting pulse number and the current pulse number; generating the target enabling driving signal according to the target duty cycle and the target pulse number.

2. The driving method of a display panel according to claim 1, wherein The determining of the target duty cycle of the transition frame picture comprises: judging a size of the starting pulse number and the current pulse number; in a case where a difference between the starting pulse number and the current pulse number is greater than a pulse number threshold value, determining the target duty cycle of the transition frame picture according to the starting duty cycle and the current duty cycle.

3. The display panel driving method according to claim 1, wherein the display time of the starting frame picture and the display time of the current frame picture comprise at least one transition frame picture.

4. The display panel driving method according to claim 3, wherein in a case where the display time of the starting frame picture and the display time of the current frame picture comprise at least two transition frame pictures, the target duty cycle of the transition frame picture which is close to the starting frame picture is less than the target duty cycle of the transition frame picture which is far from the starting frame picture.

5. The driving method of a display panel according to claim 1, wherein Further comprising: in a case where the starting luminance value and the current luminance value are both greater than the luminance threshold value, generating a voltage adjustment signal according to the current luminance value to control the display luminance of the current frame picture, wherein the voltage adjustment signal is used to apply a driving voltage to a light-emitting device.

6. The driving method of the display panel according to claim 2, wherein Further comprising: In a case that both the starting luminance value and the current luminance value are less than the luminance threshold value, a current enable driving signal is generated according to the current duty cycle and the current pulse number, wherein the current enable driving signal is used to drive the light emitting driving transistor to control the current frame picture display.

7. The driving method of the display panel according to claim 1, wherein Further comprising: acquiring a response duration of the display panel, wherein the response duration is a duration between an acquisition time of the current luminance value and a display time of the current frame picture; determining a display duration of the transition frame picture according to the response duration, wherein the display duration of the transition frame picture is less than or equal to the response duration.

8. The driving method of the display panel according to claim 7, wherein The determining the display duration of the transition frame picture according to the response duration comprises: acquiring a display duration of the current frame picture; determining the display duration of the transition frame picture according to the response duration and the display duration of the current frame picture, wherein the display duration of the transition frame picture is less than a sum of the response duration and the display duration of the current frame picture.

9. The driving method of the display panel according to claim 7, wherein Further comprising: determining a number of the transition frame pictures according to the display duration of the transition frame picture; wherein the display duration of the transition frame picture and the number of the transition frame picture are in a positive correlation.

10. The driving method of the display panel according to claim 9, wherein The determining the target duty cycle of the transition frame picture comprises: determining the target duty cycle of each of the transition frame pictures according to the starting duty cycle, the current duty cycle and the number of the transition frame pictures; in a case that there are at least two of the transition frame pictures, the number of the transition frame pictures and a difference between the target duty cycles of two adjacent transition frame pictures are in a negative correlation.

11. A drive controller characterized by comprising: comprising: a memory, wherein the memory stores a computer program; a processor, wherein the processor is configured to execute the computer program to implement the steps of the display panel driving method according to any one of claims 1 to 10.

12. A display device comprising: comprising: the driving controller according to claim 11; a display panel, wherein the display panel is electrically connected to the driving controller; the driving controller is configured to provide a target enable driving signal to the display panel in the process of executing the display panel driving method according to any one of claims 1 to 10.

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