Display device and driving method thereof

Abstract

The invention provides a display device and a driving method thereof, the display device comprises a display panel, a graphics processor and a time sequence control chip, a front buffer area and a rear buffer area in a storage space of the graphics processor are respectively used for storing image information of an nth frame and image information of an (n + 1) th frame, n is a positive integer, and n is a positive integer; the time sequence control chip is used for acquiring a time threshold value when the image information of the (n + 1) th frame of the rear buffer area reaches a ready state, selecting compensation information of the (n + 1) th frame according to the time threshold value, and pre-loading the compensation information of the (n + 1) th frame in a frame blanking period of the nth frame, and the image information of each frame is compensated by adopting the corresponding compensation information in time, so that the picture flicker phenomenon is effectively improved.

Description

Technical Field

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

[0002] In VRR (Variable Refresh Rate) mode, the refresh rate of the display can be matched in real time with the frequency output by the graphics card. This matching can significantly reduce the image freeze and tearing caused by the graphics card at different frequencies. Among them, the timing control chip generally needs to improve the image quality according to different compensation algorithms at different refresh rates to keep the brightness of the display consistent.

[0003] However, when the refresh rate of the display screen is switched, it takes at least 3 frames to switch the corresponding compensation algorithm. During the switching process, the display screen still uses the compensation algorithm of the previous frame, resulting in flickering of the display screen. Summary of the invention

[0004] The embodiments of the present invention provide a display device and a driving method thereof to solve the technical problem that a conventional display screen has a flickering phenomenon in a VRR mode.

[0005] An embodiment of the present invention provides a display panel, including:

[0006] Display panel;

[0007] A graphics processor, comprising a storage space, wherein the storage space comprises a front buffer and a back buffer, wherein the front buffer is used to store image information of an nth frame, and the back buffer is used to store image information of an (n+1)th frame, where n is a positive integer;

[0008] A timing control chip is electrically connected to the display panel, and is used to obtain a time threshold when the image information of the (n+1)th frame of the back buffer reaches a ready state, and is used to select compensation information of the (n+1)th frame according to the time threshold, and preload the compensation information of the (n+1)th frame in the frame blanking period of the nth frame.

[0009] In some embodiments, it also includes:

[0010] A signal line electrically connected between the graphics processor and the timing control chip;

[0011] The timing control chip is used to periodically inquire through the signal line whether the image information of the (n+1)th frame in the back buffer of the graphics processor has reached a ready state.

[0012] In some embodiments, the timing control chip is used to obtain at least once a judgment result of whether the image information of the (n+1)th frame in the back buffer has reached a ready state, and to determine the corresponding time threshold based on at least one of the judgment results, and to preload the compensation information of the (n+1)th frame selected according to the time threshold during the frame blanking period of the nth frame.

[0013] In some embodiments, the timing control chip is used to select one from a plurality of preset time lengths as the time threshold according to a plurality of the judgment results, and the preset time length is a time basis for the timing control chip to obtain the corresponding judgment result.

[0014] In some embodiments, the graphics processor is used to generate a register value corresponding to the time threshold based on the multiple judgment results, and to send the register value to the timing control chip, and the timing control chip is used to preload the compensation information of the (n+1)th frame selected according to the register value during the frame blanking period of the nth frame.

[0015] In some embodiments, the timing control chip is used to store a plurality of the compensation information corresponding to a plurality of the time thresholds, and the timing control chip is used to determine the corresponding compensation information according to the time threshold of each frame.

[0016] In some embodiments, the timing control chip is further used to determine a corresponding refresh rate according to the time threshold of each frame;

[0017] The gate driving circuit in the display panel is used to drive the display panel to display an image according to a clock signal corresponding to the refresh rate.

[0018] In some embodiments, it also includes:

[0019] The source driving chip is electrically connected between the timing control chip and the display panel, and is used to control the display panel to display a picture according to the target image information obtained by compensating each of the image information by the timing control chip.

[0020] An embodiment of the present invention further provides a method for driving a display device, comprising:

[0021] The front buffer of the storage space in the graphics processor stores image information of the nth frame, and the back buffer of the storage space in the graphics processor stores image information of the (n+1)th frame, where n is a positive integer;

[0022] The timing control chip obtains a time threshold when the image information of the (n+1)th frame of the back buffer reaches a ready state, selects compensation information of the (n+1)th frame according to the time threshold, and preloads the compensation information of the (n+1)th frame in the frame blanking period of the nth frame.

[0023] In some embodiments, the step of obtaining the time threshold of the image information of the (n+1)th frame of the back buffer when the image information reaches the ready state includes:

[0024] A judgment result of whether the image information of the (n+1)th frame in the back buffer is ready is obtained at least once, and the corresponding time threshold is determined according to at least one of the judgment results.

[0025] The present invention provides a display device and a driving method thereof. A front buffer and a back buffer of a storage space in a graphics processor are respectively used to store image information of an nth frame and image information of an (n+1)th frame, where n is a positive integer. A timing control chip is used to obtain a time threshold when the image information of the (n+1)th frame in the back buffer reaches a ready state, and is used to select compensation information of the (n+1)th frame according to the time threshold, and preload the compensation information of the (n+1)th frame in a frame blanking period of the nth frame, so as to timely compensate the image information of each frame with corresponding compensation information, thereby effectively improving the screen flickering phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 and Figure 2 This is a diagram of the architecture of a display device provided by an embodiment of the present invention.

[0027] Figure 3 Schematic diagram of determining compensation information in comparative examples and embodiments provided by the present invention.

[0028] Figure 4 The present invention provides a flow chart of a method for driving a display device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0030] The terms "including" and "having" and any variations thereof in the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or modules is not limited to the listed steps or modules, but may optionally include steps or modules not listed, or may optionally include other steps or modules inherent to these processes, methods, products or devices.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] An embodiment of the present invention provides a display device, which includes but is not limited to the following embodiments and combinations of the following embodiments.

[0033] In one embodiment, in combination Figures 1 to 3 As shown, the display device 100 includes: a display panel 10; a graphics processor 20, including a storage space 201, the storage space 201 includes a front buffer 2011 and a back buffer 2012, the front buffer 2011 is used to store image information of the nth frame, and the back buffer 2012 is used to store image information of the (n+1)th frame, where n is a positive integer; a timing control chip 30, electrically connected to the display panel 10, for obtaining a time threshold when the image information of the (n+1)th frame of the back buffer 2012 reaches a ready state, and for selecting compensation information of the (n+1)th frame according to the time threshold, and preloading the compensation information of the (n+1)th frame in the frame blanking period of the nth frame.

[0034] Specifically, Figure 1 As shown, the display device 100 may further include a central processing unit 40, and the central processing unit 40 and the graphics processing unit 20 may communicate via a signal bus 50. The central processing unit 40 may be responsible for executing various instructions, controlling and coordinating the operation of the computer system, and is suitable for processing complex control flows and various conventional computing tasks, and the graphics processing unit 20 may be a processor for processing graphics and parallel computing, and may be used to accelerate graphics rendering and other tasks requiring large-scale parallel computing.

[0035] Among them, Figure 1As shown, the graphics processor 20 can obtain the original image information of each frame from the signal bus 50, and the graphics processing unit 202 in the graphics processor 20 can render the original image information of each frame to generate corresponding image information. The graphics processing unit 202 sequentially transmits the image information of multiple frames to the storage space 201 in the graphics processor 20. The front buffer 2011 in the storage space 201 is used to store the image information of the nth frame, and the back buffer 2012 is used to store the image information of the (n+1)th frame. Whenever the graphics processing unit 202 renders a frame of original image information to transmit the image information of the storage space 201 to the storage space 201, the front buffer 2011 in the storage space 201 is used to store the image information of the nth frame, and the back buffer 2012 is used to store the image information of the (n+1)th frame. When transmitting the image information of the frame, the front buffer 2011 in the storage space 201 can transmit the image information of the frame currently stored therein to the video control unit 203, and receive the image information of the frame currently stored therein in the back buffer 2012 in the storage space 201 for storage. Correspondingly, after the back buffer 2012 outputs the image information of the frame currently stored therein to the front buffer 2011, it also receives the image information of the frame obtained after rendering from the graphics processing unit 202. The video control unit 203 can package the image information and control information it receives and transmit them to the timing control chip 30. Furthermore, the timing control chip 30 can decode the received signal and perform other processing, and drive the display panel 10 to display the picture according to the decoded and other processed signal.

[0036] As discussed above, whenever the graphics processing unit 202 finishes rendering a frame of original image information, the back buffer 2012 will output the image information of the frame currently stored in it to the front buffer 2011, and receive the image information of the frame obtained after the rendering from the graphics processing unit 202. The above-mentioned "receiving the image information of the frame obtained after the rendering from the graphics processing unit 202" can be called "the image information of the (n+1)th frame of the back buffer 2012 is ready" in this embodiment. The corresponding time threshold can be understood as the time required for the graphics processing unit 202 to render the original image information of the frame to obtain the corresponding image information. Combined with the definition of frame rate (indicating the number of times that the graphics processor can be updated per second when processing a field), the "time threshold" here can be defined as the inverse of the frame rate.

[0037] As discussed above, the video control unit 203 can package the image information and control information it receives and transmit them to the timing control chip 30, and the timing control chip 30 can decode the received signal and generate transition image information and the corresponding refresh rate. Furthermore, the gate drive circuit in the display panel 10 is used to drive the display panel 10 to display the picture according to the clock signal corresponding to the refresh rate, that is, the current refresh rate in the present invention can be equal to the current frame rate to realize the VRR (Variable Refresh Rate, adaptive refresh rate) function.

[0038] Specifically, the target image information of each frame may include a frame display period and a frame blanking period arranged in sequence. Since the scanning capability and resolution of the display panel 10 are certain, the duration of the frame display period of different frames is equal. The video control unit 203 can reasonably set the duration of the frame blanking period according to the time threshold so that the refresh rate of the frame is equal to the corresponding frame rate. The later gate drive circuit can also stay in the corresponding frame blanking period in the two adjacent frame display periods to make the display panel have a corresponding refresh rate. However, for two frames with different refresh rates, that is, the duration of the frame blanking period of the two frames is different, resulting in different leakage durations of the two frames, which will cause flickering.

[0039] Based on this, the timing control chip 30 can be configured to store a plurality of compensation information corresponding to a plurality of time thresholds (corresponding to a plurality of refresh rates respectively), and the timing control chip 30 is used to determine the corresponding compensation information according to the time threshold of each frame, and each compensation information can be understood as being set at least according to the leakage degree of the sub-pixel in the corresponding frame blanking period; further, the display panel 10 also includes: a source driving chip (not shown in the drawings), which is electrically connected between the timing control chip 30 and the display panel 10, and is used to control the display panel 10 to display the screen according to the target image information obtained by compensating each of the image information (specifically compensating the above-mentioned transition image information obtained by decoding the image information) by the timing control chip 30, for example, the source driving chip can generate a data signal according to the target image information, and the data signal acts on the display panel 10 to control the brightness of each sub-pixel. Therefore, different compensation information can be set for different refresh rates to compensate for different leakage degrees caused by different frame blanking period durations.

[0040] Specifically, the following comparative examples and embodiments can be adopted to make improvements. Figure 3 As shown, here taking the frame rates of 165FPS, 48FPS, and 48FPS as examples, the corresponding time thresholds of the three frames can be t1, t2, and t3 (equal to t2), respectively, and the corresponding three refresh rates are 165HZ, 48HZ, and 48HZ, respectively, and the lengths of the frame display periods t11, t21, and t31 of the corresponding three frames are equal, and the lengths of the frame blanking periods t12, t22, and t32 of the three frames are the same, and t12 is less than t22.

[0041] In the comparative example, the timing control chip 30 decodes the signal sent by the video control unit 203 to determine the target image signal of the current frame, the corresponding refresh rate (determined by the length of the corresponding frame blanking period, for example Figure 3The 165HZ in is determined by detecting t12), and then the compensation information of the current frame is loaded (corresponding to the refresh rate, for example Figure 3 However, due to the long switching time of the compensation information, the display panel 10 may still use the compensation information before the switching to incorrectly compensate the target image signal of the current frame. Similarly, the compensation information 1 loaded by the timing control chip 30 when detecting t12 may incorrectly compensate the target image signal of the current frame. Figure 3 The target image signal of the frame corresponding to the first 48HZ in the detection t22 may be compensated to the compensation information 2 loaded by the detection t22. Figure 3 The target image signal of the second 48HZ frame corresponding to the detection t32 may be incorrectly compensated to Figure 3 A series of erroneous compensations of the target image signal of the frame corresponding to the latter refresh rate may also cause flickering.

[0042] In (this) embodiment, the timing control chip 30 obtains the image information of the (n+1)th frame of the back buffer 2012 and the time threshold (the inverse of the frame rate, for example) of the ready state is reached. Figure 3 t1 in , and is used to select the (n+1)th frame (e.g., the next frame, e.g., Figure 3 The first frame in the image) (that is, the compensation information corresponding to the corresponding refresh rate, for example Figure 3 In the compensation information 1), since the image information of the (n+1)th frame has not been transmitted to the video control unit 203 at this time, and the image information transmitted by the video control unit 203 to the timing control chip 30 for screen display is at least the nth frame (for example, the current frame) or a frame earlier, sufficient time can be left for the timing control chip 30 to select the compensation information of the (n+1)th frame (for example, the next frame), and preload the compensation information of the (n+1)th frame in the frame blanking period of the subsequent nth frame (for example, the current frame), so the compensation information (for example Figure 3 The compensation information in 1)) compensates the (n+1)th frame (e.g. Figure 3 The image information of the first frame in the image (n+2) can be compensated by using compensation information 2. Figure 3 The image information of the second frame in the image can be compensated in time with the corresponding compensation information for the image information of each frame, thereby effectively improving the screen flickering phenomenon.

[0043] In some embodiments, Figure 2As shown, the display device 100 also includes: a signal line 60, electrically connected between the graphics processor 20 and the timing control chip 30; wherein the timing control chip 30 is used to periodically inquire through the signal line 60 whether the image information of the (n+1)th frame of the back buffer 2012 of the graphics processor 20 has reached a ready state.

[0044] It can be understood that, in this embodiment, the signal line 60 electrically connected between the graphics processor 20 and the timing control chip 30 can be configured to enable the timing control chip 30 to communicate with the back buffer 2012 in the graphics processor 20, that is, the timing control chip 30 can directly and actively access the back buffer 2012, and regularly inquire whether the image information of the (n+1)th frame of the back buffer 2012 of the graphics processor 20 has reached a ready state, and determine the corresponding time threshold when the ready state is reached, and then select the compensation information of the (n+1)th frame according to the time threshold, and preload the compensation information of the (n+1)th frame in the frame blanking period of the nth frame.

[0045] In some embodiments, Figure 2 As shown, the timing control chip 30 is used to obtain at least once a judgment result of whether the image information of the (n+1)th frame of the back buffer 2012 has reached a ready state, and is used to determine the corresponding time threshold based on at least one of the judgment results, and is used to preload the compensation information of the (n+1)th frame selected according to the time threshold during the frame blanking period of the nth frame.

[0046] For example, when the timing control chip 30 is used to obtain the judgment result of whether the image information of the (n+1)th frame of the back buffer 2012 has reached the ready state once, then when the judgment result this time is "yes", the time threshold of the (n+1)th frame is determined according to the moment, otherwise the preset value can be used as the corresponding time threshold; for example, when the timing control chip 30 is used to obtain the judgment result of whether the image information of the (n+1)th frame of the back buffer 2012 has reached the ready state multiple times, the time threshold of the (n+1)th frame can be determined according to the moment corresponding to the judgment result of "yes".

[0047] In some embodiments, Figure 2 As shown, the timing control chip 30 is used to select one from a plurality of preset durations as the time threshold according to the plurality of judgment results, and the preset duration is the time basis for the timing control chip 30 to obtain the corresponding judgment result. Specifically, the timing control chip 30 can query the back buffer 2012 multiple times according to the plurality of preset durations to obtain multiple judgment results, and the plurality of preset durations can be set according to the plurality of preset frame rates (or the plurality of refresh rates).

[0048] Therefore, if the judgment result is "yes", it can be considered that when the back buffer 2012 is queried with the preset time length, the image information of the (n+1)th frame is ready, that is, the back buffer 2012 has completed the rendering of one frame of the original image. If there are multiple judgment results of "yes", it can be considered that when the back buffer 2012 is queried with the minimum of the corresponding multiple preset time lengths, the image information of the (n+1)th frame is ready, so the minimum preset time length for the judgment result of "yes" can be set as the time threshold.

[0049] In some embodiments, Figure 2 As shown, the graphics processor 20 is used to generate a register value corresponding to the time threshold according to the multiple judgment results, and to send the register value to the timing control chip 30, and the timing control chip 30 is used to preload the compensation information of the (n+1)th frame selected according to the register value during the frame blanking period of the nth frame.

[0050] The register 301 in the timing control chip 30 may store different flag values ​​corresponding to different refresh rates, for example, 001, 010, and 100 may represent 165HZ, 60HZ, and 48HZ, respectively. The time threshold may be controlled by the graphics processor 20 or the timing control chip 30. In this embodiment, the graphics processor 20 may generate a corresponding register value according to the time threshold. After the timing control chip 30 obtains the register value, it may compare it with a plurality of flag values ​​stored in the register 301 to determine a flag value corresponding to (which may be understood to be the same as) the register value, thereby using the refresh rate corresponding to the flag value as the refresh rate of the (n+1)th frame.

[0051] On the one hand, the timing control chip 30 can generate corresponding clock signals and other control signals according to the refresh rate to act on the gate drive circuit in the display panel 10, and drive the display panel 10 to display the picture at the refresh rate. On the other hand, the timing control chip 30 can select the compensation information of the (n+1)th frame according to the refresh rate, and preload the compensation information of the (n+1)th frame in the frame blanking period of the nth frame, and compensate the image information of the frame according to the compensation information to obtain the target information, so that the source drive chip can drive the display panel 10 to display the picture according to the target information.

[0052] The embodiment of the present invention provides a driving method of a display device, such as Figure 4 As shown, it may include but is not limited to the following steps and a combination of the following steps.

[0053] S1, a front buffer of a storage space in a graphics processor stores image information of an nth frame, and a back buffer of the storage space in the graphics processor stores image information of an (n+1)th frame, where n is a positive integer.

[0054] Among them, concepts such as image processor, storage space, front buffer, back buffer and image information can refer to the relevant description above.

[0055] Combined with the above discussion, it can be seen that after the back buffer renders a frame of original image information to obtain the corresponding image information, the front buffer can transmit the image information of one frame stored in itself to the video control unit to facilitate subsequent operations of the display device. At the same time, the image information rendered by the back buffer will be transmitted to the front buffer, and so on, which can realize the rendering of multiple frames of original image information and the transmission of multiple frames of image information.

[0056] S2, the timing control chip obtains the time threshold of the image information of the (n+1)th frame in the back buffer when it reaches the ready state, selects the compensation information of the (n+1)th frame according to the time threshold, and preloads the compensation information of the (n+1)th frame in the frame blanking period of the nth frame.

[0057] Among them, concepts such as timing control chip, reaching a ready state, time threshold, compensation information and frame blanking period can refer to the relevant description above.

[0058] Combined with the above discussion, it can be seen that the timing control chip obtains the time threshold when the image information of the (n+1)th frame in the rear buffer reaches the ready state, which is equivalent to determining the refresh rate of the (n+1)th frame, and the timing control chip also stores multiple refresh rates and corresponding multiple compensation information. Each compensation information can be considered to be set according to the leakage degree of the sub-pixel in the frame blanking period corresponding to the refresh rate. Therefore, the timing control chip pre-loads the compensation information of the (n+1)th frame determined according to the time threshold in the frame blanking period of the nth frame, and can timely compensate for the image information of the (n+1)th frame, thereby effectively improving the screen flickering phenomenon.

[0059] In some embodiments, the step of "a timing control chip acquires the time threshold of the image information of the (n+1)th frame of the back buffer after reaching the ready state" in the above S2 may include but is not limited to the following steps:

[0060] The timing control chip obtains at least once a judgment result of whether the image information of the (n+1)th frame in the back buffer has reached a ready state, and determines the corresponding time threshold according to at least one of the judgment results.

[0061] The concept of the judgment result may refer to the relevant description above.

[0062] In combination with the above discussion, it can be known that the timing control chip can determine the corresponding time threshold according to whether the judgment result is "yes" or "no". Further, the timing control chip can query the graphics processor with different preset time lengths to obtain corresponding multiple judgment results, and determine one of the preset time lengths as the time threshold according to the specific circumstances of the multiple judgment results. For specific details, please refer to the relevant description above.

[0063] The present invention provides a display device and a driving method thereof. A front buffer and a back buffer of a storage space in a graphics processor are respectively used to store image information of an nth frame and image information of an (n+1)th frame, where n is a positive integer. A timing control chip is used to obtain a time threshold when the image information of the (n+1)th frame in the back buffer reaches a ready state, and is used to select compensation information of the (n+1)th frame according to the time threshold, and preload the compensation information of the (n+1)th frame in a frame blanking period of the nth frame, so as to timely compensate the image information of each frame with corresponding compensation information, thereby effectively improving the screen flickering phenomenon.

[0064] The display device and the driving method thereof provided in the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present invention. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, 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 invention.

Claims

1. A display device, characterized in that: include: Display panel; A graphics processor, comprising a storage space, wherein the storage space comprises a front buffer and a back buffer, wherein the front buffer is used to store image information of an nth frame, and the back buffer is used to store image information of an (n+1)th frame, where n is a positive integer; A timing control chip is electrically connected to the display panel, and is used to obtain a time threshold when the image information of the (n+1)th frame of the back buffer reaches a ready state, and is used to select compensation information of the (n+1)th frame according to the time threshold, and preload the compensation information of the (n+1)th frame in the frame blanking period of the nth frame.

2. The display device according to claim 1, characterized in that Also includes: A signal line electrically connected between the graphics processor and the timing control chip; The timing control chip is used to periodically inquire through the signal line whether the image information of the (n+1)th frame in the back buffer of the graphics processor has reached a ready state.

3. The display device according to claim 1 or 2, characterized in that: The timing control chip is used to obtain at least once a judgment result of whether the image information of the (n+1)th frame in the back buffer has reached a ready state, and to determine the corresponding time threshold based on at least one of the judgment results, and to preload the compensation information of the (n+1)th frame selected according to the time threshold during the frame blanking period of the nth frame.

4. The display device according to claim 3, characterized in that: The timing control chip is used to select one from a plurality of preset time lengths as the time threshold according to the plurality of judgment results, and the preset time length is a time basis for the timing control chip to obtain the corresponding judgment result.

5. The display device according to claim 4, characterized in that: The graphics processor is used to generate a register value corresponding to the time threshold according to the multiple judgment results, and to send the register value to the timing control chip, and the timing control chip is used to preload the compensation information of the (n+1)th frame selected according to the register value during the frame blanking period of the nth frame.

6. The display device according to any one of claims 1, 2, 4 and 5, characterized in that: The timing control chip is used to store a plurality of the compensation information corresponding to the plurality of the time thresholds, and the timing control chip is used to determine the corresponding compensation information according to the time threshold of each frame.

7. The display device according to claim 6, characterized in that: The timing control chip is also used to determine the corresponding refresh rate according to the time threshold of each frame; The gate driving circuit in the display panel is used to drive the display panel to display an image according to a clock signal corresponding to the refresh rate.

8. The display device according to any one of claims 1, 2, 4 and 5, characterized in that: Also includes: The source driving chip is electrically connected between the timing control chip and the display panel, and is used to control the display panel to display a picture according to the target image information obtained by compensating each of the image information by the timing control chip.

9. A method for driving a display device, characterized in that: include: The front buffer of the storage space in the graphics processor stores image information of the nth frame, and the back buffer of the storage space in the graphics processor stores image information of the (n+1)th frame, where n is a positive integer; The timing control chip obtains a time threshold when the image information of the (n+1)th frame of the back buffer reaches a ready state, selects compensation information of the (n+1)th frame according to the time threshold, and preloads the compensation information of the (n+1)th frame in the frame blanking period of the nth frame.

10. The method for driving a display device according to claim 9, characterized in that: The step of obtaining the time threshold of the image information of the (n+1)th frame of the back buffer when the image information reaches the ready state comprises: A judgment result of whether the image information of the (n+1)th frame in the back buffer is ready is obtained at least once, and the corresponding time threshold is determined according to at least one of the judgment results.

Images