Driving method, device and display equipment of display panel

Abstract

The application discloses a display panel driving method, device and display equipment. The display panel has multiple refresh rates, the method comprises the following steps: obtaining image data of a current frame; determining the number of repeated charges of the current frame based on the refresh rate of the current frame and a target refresh rate in the multiple refresh rates; obtaining a charge starting row of the current frame; starting from the charge starting row, refreshing the image data of the current frame until the number of repeated charges of the display panel is completed. The display panel driving method provided by the application can use the vertical blanking time of the low-frequency picture to perform repeated charging, so that the display panel can always maintain the target refresh rate for refreshing display, thereby improving the potential holding capacity of the low-frequency picture, weakening the problem of low brightness of the low-frequency picture, and further improving the flicker phenomenon of the display panel during variable frequency display, and improving the display quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a driving method and device of display panel and display equipment. BACKGROUND

[0002] With the improvement of living standards, the entertainment way is also more and more rich, among them, the e-sports game is a kind of relatively pleasing entertainment way. The display panel with VRR (Variable Refresh Rate, variable frame refresh rate) technology can adopt different refresh rates according to the scene of e-sports game, because the change of refresh rate will cause the difference of picture brightness, therefore, in the process of variable frequency display, the display panel is prone to flicker phenomenon, which seriously affects the display quality. SUMMARY

[0003] Embodiments of the present application provide a driving method, device and display equipment of display panel to improve the flicker phenomenon of display panel in variable frequency display and improve the display quality.

[0004] In order to solve the above technical problems, the embodiments of the present application disclose the following technical solutions:

[0005] In a first aspect, a driving method of a display panel is provided, the display panel having a plurality of refresh rates; the method comprising:

[0006] obtaining image data of a current frame;

[0007] determining a repeated charging number of the current frame based on a refresh rate of the current frame and a target refresh rate in the plurality of refresh rates, the refresh rate of the current frame being less than the target refresh rate;

[0008] obtaining a charging start line of the current frame;

[0009] refreshing the image data of the current frame from the charging start line until charging of the display panel is completed for the repeated charging number.

[0010] In combination with the first aspect, if the current frame is not the first frame after the display panel is powered on, the obtaining of the charging start line of the current frame comprises:

[0011] obtaining a charging stop line of a previous frame of the current frame;

[0012] determining a next line of the charging stop line as the charging start line of the current frame.

[0013] In combination with the first aspect, the obtaining of the charging stop line of the previous frame of the current frame comprises:

[0014] determine a charging end line of a previous frame of the current frame based on a number of repeated charges of the previous frame of the current frame, a charging start line of the previous frame of the current frame, and a total number of scan lines of the display panel.

[0015] With reference to the first aspect, the step of determining the charging end line of the previous frame of the current frame comprises:

[0016] The charging end line of the previous frame of the current frame is determined by the following formula:

[0017]

[0018] wherein k i is the charging end line of the i-th frame, T i is the number of repeated charges of the i-th frame, n i is the charging start line of the i-th frame, and H is the total number of scan lines of the display panel.

[0019] With reference to the first aspect, if the current frame is the first frame after the display panel is powered on, the step of obtaining the charging start line of the current frame comprises:

[0020] determining the first line of the display panel as the charging start line of the current frame.

[0021] With reference to the first aspect, the number of repeated charges of the current frame is determined based on a refresh rate of the current frame and a target refresh rate in a plurality of refresh rates.

[0022] The number of repeated charges of the current frame is determined by the following formula:

[0023]

[0024] wherein T i is the number of repeated charges of the i-th frame, F max is the target refresh rate, F i is the refresh rate of the i-th frame.

[0025] A second aspect provides a display panel driving device, the display panel having a plurality of refresh rates; the device comprising:

[0026] an image data obtaining module configured to obtain image data of a current frame;

[0027] a number of charges determining module configured to determine a number of repeated charges of the current frame based on a refresh rate of the current frame and a target refresh rate in a plurality of refresh rates, the refresh rate of the current frame being less than the target refresh rate;

[0028] a charging start determining module configured to obtain a charging start line of the current frame.

[0029] an image refreshing display module, configured to refresh and display the image data of the current frame from the charging start line, until the display panel is charged for the repeated charging times.

[0030] With reference to the second aspect, the charging start line determination module is configured to obtain the charging start line of the current frame, including:

[0031] if the current frame is not the first frame after the display panel is powered on, obtaining the charging end line of a previous frame of the current frame;

[0032] determining a next line of the charging end line as the charging start line of the current frame.

[0033] Alternatively, if the current frame is the first frame after the display panel is powered on, determining a first line of the display panel as the charging start line of the current frame.

[0034] A third aspect provides a display device, including a display panel and a timing controller, the timing controller including:

[0035] a storage device, configured to store image data of a current frame and a refresh rate of the current frame;

[0036] a processor, configured to process the image data by using the driving method of the display panel according to any one of the first aspect, or by using the driving device of the display panel according to any one of the second aspect, to drive the display panel to display a picture.

[0037] With reference to the third aspect, the storage device includes a first memory and a second memory;

[0038] the first memory is configured to store image data of a current frame, a refresh rate of the current frame, image data of a next frame of the current frame and a refresh rate of the next frame of the current frame, and release the image data of the current frame and the refresh rate of the current frame after the current frame is displayed;

[0039] the second memory is configured to store the image data processed by the processor, and output to the display panel.

[0040] One of the above technical solutions has the following advantages or beneficial effects:

[0041] Compared with the prior art, the display panel driving method provided by the present application has a plurality of refresh rates, and the method comprises the following steps: obtaining image data of a current frame; determining a number of repeated charging times of the current frame based on a refresh rate of the current frame and a target refresh rate in the plurality of refresh rates; obtaining a charging starting row of the current frame; and refreshing and displaying the image data of the current frame from the charging starting row until charging of the display panel is completed for the number of repeated charging times. The display panel driving method provided by the present application can utilize the vertical blanking time of a low-frequency picture to perform repeated charging, so that the display panel can always maintain a target refresh rate to perform refreshing and displaying, thereby improving the potential holding capability of the low-frequency picture, weakening the problem of low brightness of the low-frequency picture, and further improving the flicker phenomenon of the display panel during variable-frequency display, and improving the display quality.

[0042] The display panel driving device provided by the present application can utilize the vertical blanking time of a low-frequency picture to perform repeated charging, so that the display panel can always maintain a target refresh rate to perform refreshing and displaying, thereby improving the potential holding capability of the low-frequency picture, weakening the problem of low brightness of the low-frequency picture, and further improving the flicker phenomenon of the display panel during variable-frequency display, and improving the display quality.

[0043] The display panel provided by the present application can improve the flicker phenomenon of the display panel during variable-frequency display, and has good display quality. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0045] Figure 1 The structure diagram of the display device of the embodiment of the present application is shown in the figure.

[0046] Figure 2 The overall flowchart of the display panel driving method of the embodiment of the present application is shown in the figure.

[0047] Figure 3 The specific flowchart of the display panel driving method of the embodiment of the present application is shown in the figure.

[0048] Figure 4 The structure diagram of the display panel driving device of the embodiment of the present application is shown in the figure.

[0049] REFERENCE SIGNS:

[0050] 10, display panel; 20, timing controller; 21, storage device; 211, first memory; 212, second memory; 22, processor; 30, driving device; 301, image data acquisition module; 302, charging frequency determination module; 303, charging start determination module; 304, image refresh display module. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0052] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, at least one of which can be one, two or more, unless otherwise specifically limited.

[0053] With the improvement of people's living standards, people's requirements for entertainment life are getting higher and higher, among which e-sports is a popular and enjoyable way of entertainment. E-sports games often have variable frequency pictures, and usually use display panels equipped with VRR (Variable Refresh Rate) technology to display pictures. Among them, the vertical blanking time (V-Blanking) of low-frequency pictures is longer than that of high-frequency pictures. Due to the characteristics of TFT circuit, the longer the vertical blanking time, the more the leakage of the display panel, and the pixel voltage cannot be well maintained, so the deviation from the target is large, therefore the brightness at low frequency will be lower due to the leakage of the display panel, and the brightness will be higher when the picture switches to high-frequency picture due to the less leakage of the display panel, so in the process of high-low frequency switching, the human eye will feel flicker, bringing bad game experience.

[0054] Therefore, the embodiment of the present application provides a driving method of a display panel, which converts a VRR charging time sequence adapted to a variable frequency picture into a panel maintaining target charging time sequence, uses the time of original leakage to repeatedly charge a low frequency picture to improve the potential maintaining capability of the low frequency picture, and thus weakens the problem of low brightness of the low frequency picture and improves flicker, so that at least part of the above technical problems can be solved.

[0055] Please refer to Figure 1 , Figure 1 a structural diagram of a display device of the embodiment of the present application is shown. The display device of the embodiment of the present application comprises a display panel 10 and a timing controller 20. The display panel 10 is a panel supporting a VRR technology and has multiple refresh rates. The timing controller 20 comprises a storage device 21 and a processor 22. The storage device 21 is used to store image data of a current frame and a refresh rate of the current frame. The processor 22 is used to process the image data by using the driving method of the display panel of the embodiment of the present application to drive the display panel 10 to display a picture, or by using a driving device 30 of the display panel of the embodiment of the present application. Wherein, the current frame is any image frame in a video signal.

[0056] In some embodiments, the storage device 21 comprises a first memory 211 and a second memory 212, the first memory 211 is connected with an input end of the processor 22, and the second memory 212 is connected with an output end of the processor 22. The first memory 211 is used to store the image data of the current frame, the refresh rate of the current frame, the image data of a next frame of the current frame and the refresh rate of the next frame of the current frame, and release the image data of the current frame and the refresh rate of the current frame after the current frame is completed to be displayed. The second memory 212 is used to store the image data processed by the processor 22 and output to the display panel 10.

[0057] Exemplarily, the first memory 211 and the second memory 212 are both flash memories.

[0058] Specifically, the video signal under the VRR variable frequency time sequence is input to the first memory 211, the first memory 211 stores data information of two continuous frames and refresh rates of each frame, the processor 22 processes the data information of the current frame by using the driving method of the display panel of the embodiment of the present application, and sends the image data of the high refresh rate fixed frequency time sequence processed to the second memory 212, the second memory 212 outputs the image data of the high refresh rate fixed frequency time sequence processed to the display panel 10, so that the display panel 10 starts to display the high refresh rate fixed frequency picture from the charging starting row of the current frame. After the current frame is completed to be displayed, the data information of the current frame and the refresh rate in the first memory 211 are released, so that the next frame of the current frame becomes the current frame, and the next frame of the video signal is stored as the next frame of the current frame, so that the processor 22 continuously performs driving until the power of the display panel 10 is turned off.

[0059] It can be understood that the video signal is a VRR variable frequency timing video signal, and the refresh rates of different frames are different. The display device adopts the driving method of the display panel of the embodiment of the application, so that the video signal can be output for two frames of time delay, and the video signal suitable for VRR variable frequency can be converted into a signal suitable for high brush fixed frequency timing through software and hardware scheme processing.

[0060] Please refer to Figure 2 , Figure 2 The driving method of the display panel of the embodiment of the application is illustrated. The driving method of the display panel comprises the following steps:

[0061] Step 201: obtaining image data of a current frame.

[0062] Specifically, the current frame is any image frame in the video signal. The time length required for refreshing and displaying from the first row to the last row of the display panel of the current frame is the active area (Active) time length, and the difference between the frame time length and the active area time length is the vertical blanking time length (i.e. the time length of the vertical blanking area).

[0063] Among them, the frame time length = 1 / refresh rate = active area time length + vertical blanking time length.

[0064] It can be understood that for the same display panel, the active area time length is the same under different refresh rates, but the vertical blanking time length is different. The lower the refresh rate, the longer the vertical blanking time length, and the longer the frame time length.

[0065] Step 202: determining the number of repeated charges of the current frame based on the refresh rate of the current frame and a target refresh rate in the plurality of refresh rates, the refresh rate of the current frame being less than the target refresh rate.

[0066] Among them, the number of repeated charges refers to the total number of times of refreshing and displaying of the current frame within the frame time length. For example, repeated charging 2 times means that the frame picture is displayed twice under fixed frequency high brush; repeated charging 1.5 times means that the frame picture is displayed once through high brush, and the next time of charging is only charged to half of the active area scan line number.

[0067] It can be understood that the number of repeated charges is greater than or equal to 1.

[0068] In some examples, the target refresh rate can be the maximum refresh rate in the plurality of refresh rates. In this way, it can be ensured that the display panel always displays at high brush fixed frequency, weakens the panel leakage problem, and improves the panel flicker.

[0069] In some embodiments, the number of repeated charges of the current frame can be determined by the following formula (1):

[0070]

[0071] In formula (1), T i is the number of repeated charging of the i-th frame, F max is the target refresh rate, F i is the refresh rate of the i-th frame, i is an integer greater than or equal to 1 and less than or equal to I, and I is the total number of frames.

[0072] Exemplarily, the current frame is the i-th frame, and the number of repeated charging of the i-th frame can be obtained according to the refresh rate of the i-th frame and the target refresh rate of the display panel. For example, the commonly used minimum refresh rate is 48 Hz, and the maximum refresh rate is 120 Hz. When displaying a frequency of 48 Hz on a screen with a refresh rate of 120 Hz, the picture needs to be charged 120 / 48 = 2.5 times. After displaying 2 frames of 48 Hz picture, the upper half of the screen continues to display 0.5 frames of 48 Hz picture, and then the lower half of the screen displays the lower half of the next frame of the 48 Hz picture.

[0073] Step 203: obtaining the charging starting line of the current frame.

[0074] In some embodiments, if the current frame is the first frame after the display panel is powered on, the first row of the display panel can be determined as the charging starting line of the current frame.

[0075] At this time, for the first frame after the display panel is powered on, the charging starts from the first row of scan lines of the display panel.

[0076] In other embodiments, if the current frame is not the first frame after the display panel is powered on, step 203 can be implemented in the following manner:

[0077] obtaining the charging ending line of the previous frame of the current frame.

[0078] determining the next row of the charging ending line as the charging starting line of the current frame.

[0079] That is to say, for the second frame after the display panel is powered on and the image frames after the second frame, the charging starting line can not be the first row of scan lines, and needs to be determined according to the repeated charging of the previous frame, and the charging starts from the next row of the ending line after the repeated charging of the previous frame. For example, if the ending line after the repeated charging of the previous frame is the 100th row, the charging starting line of the current frame is the 101st row, and the current frame needs to start charging from the 101st row, and the pixel voltage of the charging is the voltage corresponding to the 101st row of pixels, until the last row of the active area is charged and returns to the 100th row, that is, one charging of the current frame is completed.

[0080] In some examples, the charging cutoff line of the previous frame can be determined based on the number of repeated charging cycles in the previous frame, the charging start line of the previous frame, and the total number of scan lines on the display panel.

[0081] For example, the charging cutoff line of the previous frame can be determined by the following formula (2):

[0082]

[0083] In formula (2), k i For the charging cutoff line of the i-th frame, T i The number of times the battery is repeatedly charged in the i-th frame, n i Let H be the starting line for charging the i-th frame, and H be the total number of scan lines on the display panel. The i-th frame represents the frame preceding the current frame, so the current frame is the (i+1)-th frame. It's understood that the total number of scan lines H includes the number of scan lines in the vertical blank area.

[0084] Step 204: Starting from the charging start line, refresh and display the image data of the current frame until the display panel has been charged a number of times.

[0085] Specifically, starting from the charging start line, the image data of the current frame is continuously refreshed and displayed until the charging cycle is completed a certain number of times. Then, the image data of the next frame is refreshed and displayed starting from the line below the charging end line. It can be understood that if the charging end line of the current frame ends between frames 0 and 1, then the remaining image data of that frame needs to be continued from the next frame.

[0086] Please see Figure 3 , Figure 3 This illustration shows the specific flow of the driving method for the display panel according to an embodiment of this application. In some examples, for ease of description, the first memory is represented by flash1 and the second memory by flash2. After the display device is powered on, the data information and refresh rate of the two frames to be displayed in the video signal are stored in flash1. The processor determines the number of recharge cycles T for the two frames based on the frame duration and the highest refresh rate that the display panel can support. i If the current frame (i-th frame) is the first frame after power-on, charging starts from the first scan line n1. If the current frame (i-th frame) is not the first frame after power-on, charging continues from the previous frame, ending at scan line k. i-1 The next line n i =k i-1 +1 to start charging. Then the processor will calculate the number of charging cycles T. i Charging start line n i The total number of scan lines on the display panel determines the recharge cutoff line k of the i-th frame. iAnd according to the video signal output two frame processing after the new high brush fixed frequency timing data information, stored in flash2, the display panel will get high brush fixed frequency timing data information from flash2 and display, record display progress as j. When the first frame in flash1 repeats the charging is complete, the second frame in flash1 starts charging from the next row of the first frame repeated charging, the first frame in flash1 picture data release, receive and store the new video signal data and the refresh rate of the frame. Wherein the display progress needs to be recorded, to mark the start of the new video signal input flash1, the processed video signal output flash2. J=0 indicates that the first frame in flash1 has been processed and is being output to the panel data line by flash2; j=1 indicates that the first frame in flash1 has been displayed, the first frame data in flash1 is released, the second frame becomes the first frame, and the new video signal is transmitted as the second frame. At this time, the first frame in flash1 is processed and starts to be displayed through flash2, j=0. Thus, until the display device is turned off.

[0087] It can be understood that the driving method of the display panel provided in the embodiments of the present application can utilize the vertical blanking time of the low-frequency picture to repeat charging, so as to realize the scheme that the high brush fixed frequency charging timing adapts to the variable frequency picture, and then the display panel can always maintain the target refresh rate for refreshing and displaying, thereby improving the potential holding capability of the low-frequency picture, weakening the problem of low brightness caused by low-frequency leakage, and then improving the flicker phenomenon of the display panel during variable frequency display, and improving the display quality.

[0088] Correspondingly, please refer to Figure 4 , Figure 4 The structure diagram of the driving device of the display panel is shown. The driving device 30 of the display panel provided in the embodiments of the present application includes an image data acquisition module 301, a charging frequency determination module 302, a charging start determination module 303 and an image refreshing display module 304.

[0089] The image data acquisition module 301 is used to acquire the image data of the current frame;

[0090] The charging frequency determination module 302 is used to determine the repeated charging frequency of the current frame based on the refresh rate of the current frame and the target refresh rate in the plurality of refresh rates, and the refresh rate of the current frame is less than the target refresh rate;

[0091] The charging start determination module 303 is used to acquire the charging start row of the current frame;

[0092] The image refreshing display module 304 is used to refresh and display the image data of the current frame from the charging start row, until the repeated charging frequency of the display panel is completed.

[0093] In some embodiments, the charging start determination module 303 is configured to obtain a charging start line of a current frame, including:

[0094] If the current frame is not the first frame after the display panel is powered on, obtaining a charging end line of a previous frame of the current frame;

[0095] determining a next line of the charging end line as the charging start line of the current frame.

[0096] Alternatively, if the current frame is the first frame after the display panel is powered on, determining a first line of the display panel as the charging start line of the current frame.

[0097] In some embodiments, the charging start determination module 303 is specifically configured to:

[0098] determining a charging end line of a previous frame of the current frame based on a number of repeated charges of the previous frame of the current frame, the charging start line of the previous frame of the current frame, and a total number of scan lines of the display panel.

[0099] In some embodiments, the charging start determination module 303 is specifically configured to:

[0100] determining the charging end line of the previous frame of the current frame by the following formula:

[0101]

[0102] wherein k i is the charging end line of the i-th frame, T i is the number of repeated charges of the i-th frame, n i is the charging start line of the i-th frame, and H is the total number of scan lines of the display panel.

[0103] In some embodiments, the charging number determination module 302 is specifically configured to:

[0104] determining the number of repeated charges of the current frame by the following formula:

[0105]

[0106] wherein T i is the number of repeated charges of the i-th frame, F max is a target refresh rate, and F i is a refresh rate of the i-th frame.

[0107] It can be understood that the driving device 30 of the display panel in the embodiments of the present application can use the low-frequency picture original vertical blanking time for repeated charging, so that the display panel can always maintain the target refresh rate for refresh display, thereby improving the potential holding capability of the low-frequency picture, weakening the problem of low brightness of the low-frequency picture, and further improving the flicker phenomenon of the display panel during variable frequency display, and improving the display quality.

[0108] Correspondingly, the display device in the embodiments of the present application can improve the flicker phenomenon of the display panel during variable frequency display, and has good display quality.

[0109] The above describes in detail the driving method, device and display device of the display panel provided by the embodiments of the present application. The specific examples are applied to explain the principles and implementation manners of the present application. The above embodiment is only used to help understand the technical solutions and core ideas of the present application. Those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced by equivalents. The modifications or replacements do not change the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A driving method of a display panel, characterized by, The display panel has a plurality of refresh rates; the method comprises: obtaining image data of a current frame; determining the number of repeated charges of the current frame based on the refresh rate of the current frame and a target refresh rate in the plurality of refresh rates, the refresh rate of the current frame being less than the target refresh rate; obtaining a charge starting row of the current frame; refreshing and displaying the image data of the current frame from the charge starting row until the number of repeated charges of the display panel is completed; if the current frame is not the first frame after the display panel is powered on, the obtaining of the charge starting row of the current frame comprises: obtaining a charge ending row of a previous frame of the current frame; determining a next row of the charge ending row as the charge starting row of the current frame; the obtaining of the charge ending row of the previous frame of the current frame comprises: determining the charge ending row of the previous frame of the current frame based on the number of repeated charges of the previous frame of the current frame, a charge starting row of the previous frame of the current frame and the total number of scanning lines of the display panel; the charge ending row of the previous frame of the current frame is determined by the following formula: ； wherein k i is the charging end line of the i-th frame, T i is the number of repeated charging of the i-th frame, n i is the charging start line of the i-th frame, and H is the total number of scan lines of the display panel.

2. The driving method of a display panel according to claim 1, wherein if the current frame is the first frame after the display panel is powered on, the obtaining of the charge starting row of the current frame comprises: determining the first row of the display panel as the charge starting row of the current frame.

3. The driving method of a display panel according to claim 1, wherein the determining of the number of repeated charges of the current frame based on the refresh rate of the current frame and a target refresh rate in the plurality of refresh rates comprises: the number of repeated charges of the current frame is determined by the following formula: ； Wherein, T i is the number of repeated charging of the i-th frame, F max is the target refresh rate, F i is the refresh rate of the i-th frame.

4. A driving device of a display panel, characterized by comprising: the display panel has a plurality of refresh rates; the device comprises: an image data obtaining module configured to obtain image data of a current frame; a charge number determining module configured to determine the number of repeated charges of the current frame based on the refresh rate of the current frame and a target refresh rate in the plurality of refresh rates, the refresh rate of the current frame being less than the target refresh rate; a charge starting determining module configured to obtain a charge starting row of the current frame; an image refreshing and displaying module configured to refresh and display the image data of the current frame from the charge starting row until the number of repeated charges of the display panel is completed; the charge starting determining module is configured to obtain the charge starting row of the current frame, and comprises: if the current frame is not the first frame after the display panel is powered on, the charge starting determining module obtains a charge ending row of a previous frame of the current frame; determines a next row of the charge ending row as the charge starting row of the current frame; the charge starting determining module is specifically configured to: determine the charge ending row of the previous frame of the current frame based on the number of repeated charges of the previous frame of the current frame, a charge starting row of the previous frame of the current frame and the total number of scanning lines of the display panel; the charge ending row of the previous frame of the current frame is determined by the following formula: ； wherein k i is the charging end line of the i-th frame, T i is the number of repeated charging of the i-th frame, n i is the charging start line of the i-th frame, and H is the total number of scan lines of the display panel.

5. The driving device of a display panel according to claim 4, wherein the charge starting determining module is configured to obtain the charge starting row of the current frame, and further comprises: if the current frame is the first frame after the display panel is powered on, the charge starting determining module determines the first row of the display panel as the charge starting row of the current frame.

6. A display device, characterized by The display panel comprises a display panel and a timing controller, and the timing controller comprises: a storage device for storing image data of a current frame and a refresh rate of the current frame; a processor for processing the image data to drive the display panel to display a picture by using the driving method of the display panel according to any one of claims 1-3, or using the driving device of the display panel according to any one of claims 4-5.

7. The display device of claim 6, wherein, The storage device comprises a first memory and a second memory; The first memory is used for storing image data of a current frame, a refresh rate of the current frame, image data of a next frame of the current frame and a refresh rate of the next frame of the current frame, and releasing the image data of the current frame and the refresh rate of the current frame after the current frame is completed display; The second memory is used for storing the image data processed by the processor and outputting to the display panel.

Images