A driving control method and display panel

Abstract

The application discloses a driving control method and a display panel. The driving control method comprises the following steps: when the refresh frequency of the display panel is greater than a preset frequency threshold, determining whether the gray scale jump amplitude between the next row data signal and the current row data signal is greater than a preset threshold; if the gray scale jump amplitude is greater than the preset threshold, prolonging the display of the next row data signal. The application can reduce or eliminate horizontal crosstalk and improve the display quality of the panel.

Description

TECHNICAL FIELD

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

[0002] At present, thin film transistor liquid crystal displays (TFT-LCD) have begun to be widely popularized and become mainstream products because of their small size, low power consumption, no radiation, high display resolution, and other characteristics.

[0003] In order to pursue better display results, high refresh rate has become a trend. With the continuous improvement of refresh rate, problems continue to emerge, one of which is Horizontal Crosstalk (H-Crosstalk). Under the condition of high refresh rate, the data switching frequency of the source driver is increased, and the analog voltage (AVDD) load is also increased accordingly. When the gray scale data is switched, the AVDD instantaneous load is large, which is easy to cause AVDD fluctuation, and then the voltage output difference of the source driver is easy to cause H-Crosstalk problem. SUMMARY

[0004] The embodiments of the present application provide a driving control method and a display panel, which solve the technical problem of large power consumption of the display panel.

[0005] In a first aspect, the embodiments of the present application provide a driving control method, comprising:

[0006] When the refresh frequency of the display panel is greater than a preset frequency threshold, it is determined whether a gray scale jump amplitude between a next line data signal and a current line data signal is greater than a preset threshold.

[0007] If the gray scale jump amplitude is greater than the preset threshold, the next line data signal is extended and displayed.

[0008] In some embodiments, before determining whether a gray scale jump amplitude corresponding to any data line in a to-be-displayed picture is greater than a preset threshold, the method comprises:

[0009] The gray scale jump amplitude is calculated according to a gray scale value corresponding to a current line data signal of the same data line in the to-be-displayed picture and a gray scale value corresponding to the next line data signal.

[0010] In some embodiments, the extending and displaying of the next line data signal comprises:

[0011] The next line of data signals is copied for second display after the first display of the next line of data signals is completed, the length of the blank gap region corresponding to the next line of data signals is reduced, and the length of the high potential duration of the pixel driving signal corresponding to the next line of data signals is increased.

[0012] In some embodiments, the length of the blank gap region is equal to the length of the high potential duration.

[0013] In some embodiments, the refresh frequency is inversely related to a preset threshold.

[0014] In a second aspect, the present application further provides a display panel, comprising:

[0015] a timing controller configured to determine whether a gray scale jump amplitude between a next line of data signals and a current line of data signals is greater than a preset threshold when a refresh frequency of the display panel is greater than a preset frequency threshold.

[0016] The timing controller is further configured to extend the display of the next line of data signals if the gray scale jump amplitude is greater than the preset threshold.

[0017] In some embodiments, the timing controller comprises:

[0018] a calculation module configured to calculate the gray scale jump amplitude according to a gray scale value corresponding to the next line of data signals and a gray scale value corresponding to the current line of data signals of the same data line in a to-be-displayed picture.

[0019] In some embodiments, the timing controller further comprises:

[0020] a processing module configured to copy the next line of data signals for second display after the first display of the next line of data signals is completed, reduce the length of the blank gap region corresponding to the next line of data signals, and increase the length of the high potential duration of the pixel driving signal corresponding to the next line of data signals.

[0021] In some embodiments, the length of the blank gap region is equal to the length of the high potential duration.

[0022] In some embodiments, the refresh frequency is inversely related to a preset threshold.

[0023] The beneficial effects of the present application are: different from the prior art, when the refresh frequency of the display panel is greater than the preset frequency threshold, the present application obtains the gray scale jump amplitude between the next row data signal and the current row data signal in the to-be-displayed picture, then judges whether the gray scale jump amplitude between the next row data signal and the current row data signal is greater than the preset threshold, and if the gray scale jump amplitude is greater than the preset threshold, the next row data signal is displayed for the second time. In this way, the present application can reduce or eliminate horizontal crosstalk and improve the display quality of the panel in the high refresh frequency scenario. BRIEF DESCRIPTION OF DRAWINGS

[0024] 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.

[0025] Figure 1 is a flowchart of the driving control method provided by the embodiments of the present application;

[0026] Figure 2 is a structural schematic diagram of a display panel provided by the embodiments of the present application;

[0027] Figure 3 is a structural schematic diagram of a display area provided by the embodiments of the present application;

[0028] Figure 4 is a signal change schematic diagram of the driving control method provided by the embodiments of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] In the description of the application, it needs to be understood that the terms "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the 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 indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "two or more" is two or more, unless otherwise explicitly specified and limited.

[0031] In the description of the application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "connected" and "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0032] The following disclosure provides many different embodiments or examples for implementing different structures of the application. In order to simplify the disclosure of the application, the components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the application. In addition, reference numerals and / or reference letters can be repeated in different examples in the application, and such repetition is for the purpose of simplification and clarity, and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In the above embodiments, the description of each embodiment is focused on, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0033] The display panel in the embodiments of the application can be used in mobile phones, tablet computers, desktop computers, laptop computers, e-readers, handheld computers, electronic display screens, notebook computers, ultra-mobile personal computers (UMPC), netbooks, and cellular phones, personal digital assistants (PDA), augmented reality (AR) \ virtual reality (VR) devices, media players, wearable devices, digital cameras, car navigation systems, etc.

[0034] Please refer to Figures 1 to 3, Figure 1 A flowchart illustrating the drive control method provided in this application embodiment is shown below. Figure 2 This is a schematic diagram of the structure of the display panel 1 provided in an embodiment of this application. Figure 3 This is a schematic diagram of the structure of the display area 120 provided in an embodiment of this application. Figure 1 As shown, this drive control method is applied to Figures 2 to 3 The display panel 1 shown includes multiple parallel scan lines and multiple data lines perpendicular to the scan lines. The scan lines and data lines intersect to form multiple pixel units 121 arranged in an array, such as... Figure 1 As shown, the drive control method includes:

[0035] S100. When the refresh rate of the display panel 1 is greater than the preset frequency threshold, determine whether the grayscale transition amplitude between the next row data signal and the current row data signal is greater than the preset threshold.

[0036] S200. If the grayscale jump amplitude is greater than the preset threshold, the next row of data signals is extended for display.

[0037] In this embodiment, as Figure 2 and Figure 3 As shown, the display panel 1 may include a display area 120 for displaying images and a display driving circuit. The display panel 1 according to the example embodiment can be equipped in an electronic device with image display capabilities. For example, the electronic device may include a smartphone, a personal computer (PC), a portable multimedia player (PMP), a camera, a wearable device, a television (TV), a digital video disk (DVD) player, a refrigerator, an air conditioner, an air purifier, a set-top box, a robot, a drone, various medical devices, navigation devices, a global positioning system (GPS) receiver, vehicle equipment, furniture, or various measuring devices.

[0038] like Figure 2 and Figure 3As shown, the display area 120 can include a plurality of scan lines GL1 to GLn (where n is an integer of 2 or more), a plurality of data lines DL1 to DLm (where m is an integer of 2 or more) arranged in a direction intersecting the plurality of scan lines GL1 to GLn, and a plurality of pixel units 121 respectively provided in a plurality of regions defined by the intersections of the scan lines GL1 to GLn and the data lines DL1 to DLm. For example, when the display area 120 is a TFT-LCD, the pixel unit 121 can include a thin film transistor (TFT) including a gate G and a source S respectively connected to a scan line and a data line corresponding thereto, a liquid crystal capacitor connected to a drain D of the TFT, and a storage capacitor. Further, when a scan line is selected from among the plurality of scan lines GL1 to GLn, the TFT of the pixel unit 121 connected to the selected scan line can be turned on, and then the source driver 200 can apply a gray voltage to the plurality of data lines DL1 to DLm. The gray voltage can be applied to the liquid crystal capacitor and the storage capacitor via the TFT of the corresponding pixel unit 121, and the liquid crystal capacitor and the storage capacitor can be driven by the gray voltage, whereby an image can be displayed.

[0039] The display driving circuit can include a timing controller 100 (TCON), a source driver 200 (SIDC), a gate driver 300 (GIDC), and a power supply circuit 400. The display driving circuit can convert a to-be-displayed picture I_DATA received from the outside into a plurality of gray voltages for driving the display area 120, and can supply the plurality of gray voltages to the display area 120.

[0040] The timing controller 100 can control all operations of the display driving circuit. For example, the timing controller 100 can control elements (e.g., the source driver 200, the gate driver 300, and the power supply circuit 400) of the display driving circuit, so that the display area 120 displays an image corresponding to a to-be-displayed picture I_DATA received from outside. Specifically, the timing controller 100 can generate pixel data RGB_DATA based on the received to-be-displayed picture I_DATA, and can output the pixel data RGB_DATA (i.e., a multi-line data signal of the present application, such as a current line data signal and a next line data signal) to the source driver 200. The source driver 200 can convert the pixel data RGB_DATA received from the timing controller 100 into a plurality of gray scale voltages, and can output the plurality of gray scale voltages to the display area 120 through a plurality of data lines DL1 to DLm. The gate driver 300 can be connected to a plurality of scan lines GL1 to GLn of the display area 120, and can sequentially drive the plurality of scan lines GL1 to GLn of the display area 120. The gate driver 300 can sequentially provide a plurality of pixel driving signals having an active level (e.g., a logic high level) to the plurality of scan lines GL1 to GLn based on the control of the timing controller 100. Therefore, the plurality of scan lines GL1 to GLn can be sequentially selected, and the plurality of gray scale voltages can be applied to the pixel units 121 of a horizontal line corresponding to the selected scan line through the plurality of data lines DL1 to DLm.

[0041] The power supply circuit 400 can generate various voltages for driving the display panel 1. For example, the power supply circuit 400 can receive a pixel driving signal from the timing controller 100, and then control the turning on and off of the pixel units 121 of a corresponding row according to the pixel driving signal.

[0042] In embodiments of the present application, the display panel 1 can include one timing controller 100, one source driver 200, and one gate driver 300. Of course, the display panel 1 can also include one timing controller 100, a plurality of source drivers 200, and a plurality of gate drivers 300. In other embodiments, the display panel 1 can even include a plurality of timing controllers 100, a plurality of source drivers 200, and a plurality of gate drivers 300.

[0043] The source driver 200 includes, but is not limited to, internal modules such as control logic, data registers, decoders, data latches, level shifters, digital-to-analog conversion modules (DACs), and output buffers. In this way, the source driver 200 transmits the received pixel data RGB_DATA to the pixel units 121 corresponding to the display area 120 via the above-mentioned internal modules.

[0044] The source driver 200 can output a plurality of gray scale voltages for controlling the brightness or gray scale value size of the pixel units 121 in the display area 120 through m channels. The potential shifter is configured to convert the low-voltage timing signals provided by the timing controller 100 into high-voltage switching voltage signals to drive the thin film transistors of the pixel units 121 on the array substrate to work. The digital-to-analog converter is configured to convert the pixel data RGB_DATA in the digital signal format provided by the timing controller 100 into analog gray scale voltages. The data register can receive and store the gray scale voltages corresponding to any scanning period. The data latch can receive and latch a plurality of pixel data for driving the display area 120. The data latch can receive and store a plurality of pixel data, and can output the stored pixel data in parallel to the decoder. The decoder can decode a plurality of pixel data corresponding to digital signals into a plurality of data voltages. The plurality of data voltages can be provided to the data lines DL1 to DLm as a plurality of gray scale voltages via the output buffer. The output buffer can receive and buffer a plurality of data voltages to generate a plurality of gray scale voltages for driving the data lines DL1 to DLm and provide to each pixel unit 121, i.e., the above-mentioned internal modules in the source driver 200 are responsible for converting the digital to-be-displayed picture into corresponding gray scale voltages, and the output buffer is configured to convert the data voltage in the data form into the corresponding gray scale voltage in the analog form to drive the display area 120 to display the to-be-displayed picture.

[0045] The display area 120 includes a plurality of pixels P arranged in an array, each pixel P including a plurality of sub-pixels (such as a red light sub-pixel R, a green light sub-pixel G, and a blue light sub-pixel B). Also, each step or sub-step included in the driving control method provided by the present embodiment can be performed by the corresponding picture display device to drive the display area 120 to display the above-mentioned to-be-displayed picture.

[0046] As Figure 3As shown, the display region 120 can further include a plurality of scan lines G1-Gn arranged along a row direction and a plurality of data lines D1-Dm arranged along a column direction. The red sub-pixels R, the green sub-pixels G and the blue sub-pixels B in the display region 120 can be connected to corresponding data lines and scan lines, respectively. In an example, the red sub-pixels R, the green sub-pixels G and the blue sub-pixels B in the display region 120 can be divided into red sub-pixel columns, green sub-pixel columns and blue sub-pixel columns arranged periodically and sequentially adjacent in a direction from one end of the scan lines to the other end of the scan lines. Each red sub-pixel column, green sub-pixel column or blue sub-pixel column corresponds to a data line, so that the display device can output corresponding gray scale voltages to corresponding sub-pixels (e.g., red sub-pixels R, green sub-pixels G or blue sub-pixels B) via the data lines by the driving circuit. It can be understood that the gray scale voltage of each sub-pixel in the embodiment can correspond to the gray scale voltage output to each sub-pixel via the data line and be used to drive each sub-pixel to emit light.

[0047] Due to the RC effect, the signal of the display area GOA (Gate Driven on Array) wire needs to be changed from low potential to high potential, and positive charge needs to be supplemented. In particular, in the case of high refresh frequency, when the gray scale jump amplitude between the next row of data signals and the current row of data signals is large, the next row of data signals will not be charged for a long time, and during the supplement process, due to the large transient current, there will be a Drop (voltage drop), which will cause the VGH (high level) to be pulled down as a whole in a short time, that is, the load will be extracted.

[0048] Refresh Rate refers to the vertical scanning frequency of the display panel 1, that is, the number of frames that the display panel 1 can display per second, and the unit is Hertz (HZ). In the embodiment, the frame display of the display area 120 of the display panel 1 is output in a row unit, that is, the data signal output by the output channel of the source driver 200 is transmitted from the first row to the last row of the pixel array, and the output form is a data signal. When the timing controller 100 receives the to-be-displayed frame I_DATA received from the outside, it compares the current row data signal and the next row data signal about to be pushed out in the to-be-displayed frame I_DATA. If the gray scale difference between the current row data signal and the next row data signal is large, that is, the gray scale change between the same column adjacent pixel units 121 corresponding to any data line in the to-be-displayed frame is large, the timing controller 100 will perform a first charging display on the next row data signal, and then perform a second display on the next row data signal by copying and inserting at the end of the first charging display of the next row data signal. In this way, the application can ensure the uniformity of the display brightness and other characteristics of the display panel 1, reduce or eliminate H-Crosstalk (horizontal crosstalk), and improve or enhance the display quality of the display panel 1.

[0049] In some embodiments, before the judgment of whether the gray scale jump amplitude corresponding to any data line in the to-be-displayed frame is greater than a preset threshold value, the method comprises the following steps of:

[0050] According to the gray scale value corresponding to the current row data signal of the same data line in the to-be-displayed frame and the gray scale value corresponding to the next row data signal, the gray scale jump amplitude is calculated.

[0051] Specifically, the timing controller 100 can decode and process the received front-end signal, that is, the to-be-displayed frame I_DATA, to obtain the current row data signal and the next row data signal of the to-be-displayed frame. In this way, the first gray scale value corresponding to the current row data signal of the same data line in the to-be-displayed frame and the second gray scale value corresponding to the next row data signal adjacent to the current row data signal and located on the same data line can be obtained. Then, the timing controller 100 calculates the difference between the first gray scale value and the second gray scale value to obtain the gray scale jump amplitude.

[0052] In some embodiments, the extended display of the next row data signal comprises:

[0053] After the first display of the next row data signal is completed, the next row data signal is copied for a second display, the duration of the blank gap region corresponding to the next row data signal is reduced, and the duration of the high potential of the pixel driving signal corresponding to the next row data signal is increased.

[0054] Specifically, one frame period refers to a time period between when the display panel 1 starts displaying a current frame image and when the display panel 1 starts displaying a next frame image, and one frame period includes a display stage (V-active) and a field blanking stage (V-blank). The timing controller 100 can detect the refresh frequency of each frame of the display panel 1. The length of the display stage and the length of the field blanking stage are different at different refresh frequencies. The refresh frequency is inversely related to the length of the field blanking stage, that is, the greater the refresh frequency, the shorter the length of the field blanking stage, and the smaller the refresh frequency, the greater the length of the field blanking stage.

[0055] Because the timing controller 100 is built-in with a line buffer memory, the data signal can be temporarily stored and processed, and the time slot controller copies and inserts the next row of data signal for display, so that the charging time of the next row of data signal is extended. Because the display panel 1 communicates with the front end at a fixed time per frame period, when only the data signal is inserted for display without being reduced, the frame period will change, so it is necessary to reduce the length of the blank gap region in the frame period, and because the next row of data signal is displayed twice to achieve the extended display of the next row of data signal, the length of the high potential of the pixel driving signal corresponding to the next row of data signal is increased. That is, in order to extend the display of the next row of data signal by the source driver 200, that is, to increase the output time of the next row of data signal, in order to ensure that the frame period does not change, the gate driver 300 needs to cooperate to open the charging time of the pixel unit 121 corresponding to the next row of data signal, that is, the length of the high potential of the pixel driving signal corresponding to the next row of data signal is increased.

[0056] In some embodiments, the position of reducing the length of the blank gap region corresponding to the next row of data signal is fixed, that is, the length of the blank gap region is reduced at the end of the frame period of the first display of the next row of data signal.

[0057] In some embodiments, the length of the blank gap region is equal to the length of the high potential.

[0058] Specifically, in the case of the same refresh frequency, that is, the time per frame period is fixed, in order to avoid the change of the time of the frame period, so the length of the blank gap region in a frame period is equal to the length of the high potential of the pixel driving signal corresponding to the next row of data signal.

[0059] In some embodiments, the refresh frequency is inversely related to a preset threshold.

[0060] Specifically, the greater the refresh frequency, the smaller the preset threshold, and the smaller the refresh frequency, the greater the preset threshold. For example, when the refresh frequency is 100 Hz, the preset threshold can be L250 to L256. When the refresh frequency is 120 Hz, the preset threshold can be L220 to L250.

[0061] For example, such as Figure 2 and Figure 4 As shown, at high refresh rates, after the timing controller 100 identifies that the grayscale transition amplitude between the next row of data signals and the current row of data signals is greater than a preset threshold, it firstly copies the next row of data signals to the source driver 200 and adaptively extends the high-potential duration of the pixel drive signal of the gate driver 300 corresponding to the next row of data signals. Since the timing controller 100 processes digital signals, after being transmitted to the source driver 200, it performs digital-to-analog conversion to obtain the corresponding grayscale voltage, and outputs the grayscale voltage to the display area 120 through the data line. Secondly, it provides the signal to the power supply circuit 400, which controls the voltage output to the gate driver 300, thereby increasing the high-potential duration of the pixel drive signal provided by the gate driver 300 to the scan line. Thus, at high refresh rates, if the grayscale transition amplitude between the next line data signal and the current line data signal is greater than a preset threshold, the analog voltage (AVDD) supplied to the display area 120 can be avoided during the drop period, and the normal source output voltage can be supplied to the display area 120 in a timely manner. This ensures the uniformity of the display panel 1's display brightness and other characteristics, reduces or eliminates H-Crosstalk, and improves or enhances the display quality of the display panel 1.

[0062] Based on the methods described in the above embodiments, this embodiment will further describe the method from the perspective of the apparatus. Please refer to [link / reference]. Figures 1 to 4 The display panel 1 provided in this application embodiment may include multiple parallel scan lines and multiple data lines perpendicular to the scan lines. The multiple scan lines and multiple data lines intersect to form multiple pixel units 121 arranged in an array. The display panel 1 also includes:

[0063] The timing controller 100 is used to determine whether the grayscale transition amplitude between the next row data signal and the current row data signal is greater than the preset threshold when the refresh frequency of the display panel 1 is greater than the preset frequency threshold.

[0064] The timing controller 100 is further configured to extend the display of the next row of data signals if the grayscale transition amplitude is greater than the preset threshold.

[0065] In some embodiments, the timing controller 100 includes:

[0066] The calculation module is used to calculate the grayscale jump amplitude based on the grayscale value corresponding to the current row data signal of the same data line in the image to be displayed, and the grayscale value corresponding to the next row data signal.

[0067] In some embodiments, the timing controller 100 further comprises:

[0068] a processing module, configured to copy the next row of data signals for second display after the first display of the next row of data signals is completed, reduce the length of the blank gap region corresponding to the next row of data signals, and increase the length of the high potential of the pixel driving signal corresponding to the next row of data signals.

[0069] In some embodiments, the length of the blank gap region is equal to the length of the high potential.

[0070] In some embodiments, the refresh frequency is inversely related to a preset threshold.

[0071] It should be noted that in specific implementation, the above various modules can be implemented as independent entities, or can be combined as the same or several entities, and the specific implementation of the above various modules can be referred to the method embodiments described above, which will not be described here.

[0072] The driving control method and the display panel 1 provided by the embodiments of the present application are described in detail above, and the principle and implementation manner of the present application are described by applying specific examples in this paper. The above embodiment description 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; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A drive control method characterized by comprising: The application relates to a display panel and a display panel refresh method. When the refresh frequency of the display panel is greater than a preset frequency threshold, it is judged whether the gray scale jump amplitude between the next line data signal and the current line data signal is greater than a preset threshold; If the gray scale jump amplitude is greater than the preset threshold, the next line data signal is displayed for a prolonged time; The next line data signal is displayed for a prolonged time, which comprises: After the first display of the next line data signal is completed, the next line data signal is copied for the second display, the blank gap region duration corresponding to the next line data signal is reduced, and the high potential duration of the pixel driving signal corresponding to the next line data signal is increased.

2. The drive control method according to claim 1, characterized by, Before judging whether the gray scale jump amplitude between the next line data signal and the current line data signal is greater than a preset threshold, the gray scale jump amplitude is calculated according to the gray scale value corresponding to the current line data signal of the same data line in the to-be-displayed picture and the gray scale value corresponding to the next line data signal. The blank gap region duration is equal to the high potential duration.

3. The drive control method according to claim 1, characterized by, The refresh frequency is inversely related to the preset threshold.

4. The drive control method according to any one of claims 1 to 3, characterized by, The display panel comprises:

5. A display panel, characterized by, A timing controller, which is used for judging whether the gray scale jump amplitude between the next line data signal and the current line data signal is greater than a preset threshold when the refresh frequency of the display panel is greater than a preset frequency threshold; The timing controller is also used for displaying the next line data signal for a prolonged time if the gray scale jump amplitude is greater than the preset threshold. The timing controller further comprises: A processing module, which is used for copying the next line data signal for the second display after the first display of the next line data signal is completed, reducing the blank gap region duration corresponding to the next line data signal, and increasing the high potential duration of the pixel driving signal corresponding to the next line data signal. The timing controller comprises:

6. The display panel of claim 5, wherein, A calculation module, which is used for calculating the gray scale jump amplitude according to the gray scale value corresponding to the current line data signal of the same data line in the to-be-displayed picture and the gray scale value corresponding to the next line data signal. The blank gap region duration is equal to the high potential duration.

7. The display panel of claim 5, wherein, The refresh frequency is inversely related to the preset threshold.

8. The display panel of any one of claims 5 to 7, wherein, ​

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