Display device and control method of display device

Abstract

The invention discloses a display device and a control method of the display device. The display device comprises a main board and a display panel connected with the main board, and the display panel comprises a time schedule controller. The timing controller is configured to control the display panel to enter a power saving mode. The mainboard is configured to respond to the switching of a display picture from a static state to a dynamic state, and detect the continuous frame number of the display panel in a power saving mode; and sending a first exit instruction to the time schedule controller in response to the fact that the continuous frame number is an even number. The time schedule controller is further configured to control the display panel to exit the power saving mode in response to the first exit instruction. According to the embodiment of the invention, charge residues at two ends of the liquid crystal can be avoided, so that picture flicker caused by liquid crystal polarization due to charge residues is avoided, and the display effect is improved.

Description

Technical Field

[0001] This application relates to the field of display technologies, and in particular, to a display device and a control method for a display device. Background Art

[0002] When the display screen in the display panel is static, the display panel can enter the power-saving mode. In the power-saving mode, the content in the system memory of the display device is copied to the memory of the display panel, so that the display panel directly reads the display data from its own memory to refresh the display screen, without having to load the display data from the system memory, thereby achieving the purpose of reducing power consumption. When the display screen switches from static to dynamic, the display panel needs to exit the power-saving mode. Since the display panel randomly enters and exits the power-saving mode, it may cause the positive and negative frame data polarities to be asymmetric, and the voltage applied across the liquid crystal cannot be canceled, resulting in charge residue at both ends of the liquid crystal. After long-term accumulation, the liquid crystal may be polarized and the screen may flicker, affecting the display effect. Summary of the Invention

[0003] Embodiments of this application provide a display device and a control method for a display device, which can avoid charge residue at both ends of the liquid crystal, thereby avoiding screen flicker caused by liquid crystal polarization due to charge residue and improving the display effect.

[0004] In a first aspect, embodiments of this application provide a display device, which includes a main board and a display panel connected to the main board, and the display panel includes a timing controller; wherein, the timing controller is configured to: control the display panel to enter the power-saving mode; the main board is configured to: in response to the display screen switching from static to dynamic, detect the number of consecutive frames in which the display panel is in the power-saving mode; in response to the number of consecutive frames being an even number, send a first exit instruction to the timing controller; the timing controller is further configured to: in response to the first exit instruction, control the display panel to exit the power-saving mode.

[0005] Optionally, the main board is further configured to: in response to the number of consecutive frames being an odd number, send the first exit instruction to the timing controller after a first number of frames; wherein, the first number of frames is an odd number.

[0006] Optionally, the main board is further configured to: in response to the number of consecutive frames being an odd number, send a second exit instruction to the timing controller; the timing controller is further configured to: in response to the second exit instruction, control the display panel to exit the power-saving mode after a first number of frames; wherein, the first number of frames is an odd number.

[0007] Optionally, the main board is further configured to: in response to the display screen switching from the dynamic state to the static state, send a first entry instruction to the timing controller after a second number of frames; the timing controller is further configured to: in response to the first entry instruction, control the display panel to enter the power-saving mode.

[0008] Optionally, the main board is further configured to: in response to the display screen switching from the dynamic state to the static state, send a second entry instruction to the timing controller; the timing controller is further configured to: in response to the second entry instruction, control the display panel to enter the power-saving mode after a second number of frames.

[0009] Optionally, the second number of frames has a negative correlation with the anti-polarization ability of the display panel.

[0010] Optionally, the power-saving mode includes a panel self-refresh mode.

[0011] In a second aspect, an embodiment of the present application provides a control method for a display device, the display device includes a main board and a display panel connected to the main board, and the display panel includes a timing controller; the method includes: the timing controller controls the display panel to enter the power-saving mode; the main board, in response to the display screen switching from the static state to the dynamic state, detects the continuous number of frames of the display panel in the power-saving mode; and in response to the continuous number of frames being an even number, sends a first exit instruction to the timing controller; the timing controller, in response to the first exit instruction, controls the display panel to exit the power-saving mode.

[0012] Optionally, after the main board, in response to the display screen switching from the static state to the dynamic state, detects the continuous number of frames of the display panel in the power-saving mode, the method further includes: the main board, in response to the continuous number of frames being an odd number, sends the first exit instruction to the timing controller after a first number of frames; wherein, the first number of frames is an odd number.

[0013] Optionally, the method further includes: the main board, in response to the display screen switching from the dynamic state to the static state, sends a first entry instruction to the timing controller after a second number of frames; the timing controller controls the display panel to enter the power-saving mode, including: the timing controller, in response to the first entry instruction, controls the display panel to enter the power-saving mode.

[0014] The beneficial effects provided by the embodiments of the present application at least include:

[0015] The display device provided by the embodiment of the present application includes a main board and a display panel connected to the main board, and the display panel includes a timing controller. Among them, the timing controller is configured to: control the display panel to enter the power-saving mode; the main board is configured to: in response to the display screen switching from static to dynamic, detect the continuous number of frames in which the display panel is in the power-saving mode, and in response to the continuous number of frames being an even number, send a first exit instruction to the timing controller; the timing controller is further configured to control the display panel to exit the power-saving mode in response to the first exit instruction. After the display panel enters the power-saving mode, if it is detected that the display screen switches from static to dynamic, the embodiment of the present application controls the display panel to exit the power-saving mode when the continuous number of frames in which the display panel is in the power-saving mode is an even number, so as to ensure that the positive and negative frame polarities cancel each other out, avoid the charge residue at both ends of the liquid crystal, and thus avoid the picture flicker caused by the polarization of the liquid crystal due to the charge residue, improve the display effect and extend the service life of the display panel. Description of the Drawings

[0016] Figure 1 is a schematic diagram of a display device provided by an embodiment of the present application;

[0017] Figure 2 is a schematic diagram of a display panel provided by an embodiment of the present application;

[0018] Figure 3 is a schematic diagram of the experimental results of a flicker time provided by an embodiment of the present application;

[0019] Figure 4 is a flowchart of a control method for a display device provided by an embodiment of the present application;

[0020] Figure 5 is a flowchart of another control method for a display device provided by an embodiment of the present application;

[0021] Figure 6 is a flowchart of yet another control method for a display device provided by an embodiment of the present application. Detailed Embodiments

[0022] Next, the technical solutions in the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application. The described technical solutions are only used to explain and illustrate the idea of the present application, and should not be regarded as a limitation on the protection scope of the present application.

[0023] In addition, "a plurality" in the embodiments of the present application refers to two or more. "First" and "second" in the embodiments of the present application are used to distinguish different technical features, and do not represent any order, quantity or importance.

[0024] The embodiments provided by the present application are similar, and the features in different embodiments can be combined with each other.

[0025] The description order of the following embodiments does not limit the preferred order of the embodiments.

[0026] Please refer to Figure 1 , Figure 1 which is a display device provided by an embodiment of the present application. As Figure 1 shown, the display device includes: a main board 100 and a display panel 200 connected to the main board 100. The display panel 200 includes a Timing Controller (TCON) 300.

[0027] The Timing Controller 300 is configured to: control the display panel 200 to enter a power-saving mode.

[0028] The main board 100 is configured to: in response to the display screen switching from static to dynamic, detect the number of consecutive frames that the display panel 200 is in the power-saving mode; and in response to the number of consecutive frames being even, send a first exit instruction to the Timing Controller 300.

[0029] The Timing Controller 300 is further configured to: in response to the first exit instruction, control the display panel 200 to exit the power-saving mode.

[0030] The embodiments of the present application do not limit the specific mode of the power-saving mode. In some embodiments, the power-saving mode includes a Panel Self Refresh (PSR) mode. Among them, in the panel self-refresh mode, the content in the system memory is copied to the memory of the display panel, so that the display panel directly reads the display data from its own memory to refresh the display screen, without having to load the display data from the system memory. Of course, the power-saving mode may also include other modes, such as a Low Refresh Rate (LRR) mode and a Content Adaptive Brightness Control (CABC) mode, etc. Among them, in the low refresh rate mode, the display panel reduces the refresh rate to save power; in the content adaptive brightness control mode, the backlight brightness of the display panel is dynamically adjusted by sensing the brightness and darkness of the display screen.

[0031] When the display screen is static, for example, when the display screen switches from dynamic to static, the timing controller 300 can control the display panel 200 to enter the power-saving mode. In the embodiments of the present application, the main board 100 can continuously detect the display screen. When the main board 100 detects that the display screen is static, the main board 100 can send an entry instruction to the timing controller 300, so that the timing controller 300 controls the display panel 200 to enter the power-saving mode according to the entry instruction. It should be understood that the display screen being static means that the content of the display screen has not changed, and the display screen being dynamic means that the content of the display screen has changed.

[0032] The main board 100 continuously detects the display screen. In response to the display screen switching from static to dynamic, the main board 100 detects the number of consecutive frames that the display panel 200 is in the power-saving mode. In some embodiments, the main board 100 determines the number of consecutive frames that the display panel 200 is in the power-saving mode according to the first moment, the second moment, and the single-frame duration of the display screen. Among them, the first moment may refer to the moment when the main board 100 detects that the display screen switches from dynamic to static, and the second moment may be the moment when the main board 100 detects that the display screen switches from static to dynamic. The display screen is static between the first moment and the second moment. The main board 100 can determine the number of consecutive frames that the display panel 200 is in the power-saving mode according to the duration between the first moment and the second moment, and the single-frame duration of the display screen. For example, the number of consecutive frames = (the second moment - the first moment) / the single-frame duration.

[0033] Since when the time in the power-saving mode is an odd number of frames, the positive and negative frame voltages of the data output cannot cancel each other out. After such long-term accumulation, the liquid crystal may become polarized, which may lead to flickering. Therefore, when the main board 100 detects that the display screen switches from static to dynamic, it does not immediately control the display panel 200 to exit the power-saving mode, but determines whether the number of consecutive frames that the display panel 200 is in the power-saving mode is even, and controls the display panel 200 to exit the power-saving mode based on the judgment result.

[0034] If the number of consecutive frames that the display panel 200 is in the power-saving mode is even, the display panel 200 can currently exit the power-saving mode without causing charge residue. In response to the number of consecutive frames that the display panel 200 is in the power-saving mode being even, the main board 100 sends a first exit instruction to the timing controller 300, and the timing controller 300 controls the display panel 200 to exit the power-saving mode in response to the first exit instruction.

[0035] If the number of consecutive frames in which the display panel 200 is in the power-saving mode is odd, the display panel 200 cannot currently exit the power-saving mode, because if the display panel 200 exits the power-saving mode currently, it will cause charge residue. In some embodiments, in response to the number of consecutive frames in which the display panel 200 is in the power-saving mode being odd, the main board 100 can continuously detect the number of consecutive frames in which the display panel 200 is in the power-saving mode. In response to the number of consecutive frames in which the display panel 200 is in the power-saving mode being even, the main board 100 sends a first exit instruction to the timing controller 300. In some other embodiments, the main board 100 is further configured to: in response to the number of consecutive frames in which the display panel 200 is in the power-saving mode being odd, send a first exit instruction to the timing controller 300 after a first number of frames. In some other embodiments, the main board 100 is further configured to: in response to the number of consecutive frames in which the display panel 200 is in the power-saving mode being odd, send a second exit instruction to the timing controller 300; the timing controller 300 is further configured to: in response to the second exit instruction, control the display panel 200 to exit the power-saving mode after a first number of frames.

[0036] The first number of frames is odd. The specific number of frames of the first number of frames in the embodiments of the present application is not limited. For example, the first number of frames can be 1 frame, 3 frames, or 5 frames, etc. In actual applications, the first number of frames can be flexibly set according to requirements. If the number of consecutive frames in which the display panel 200 is in the power-saving mode is odd, the main board 100 can wait for the first number of frames and then send a first exit instruction to the timing controller 300. The timing controller 300, in response to the first exit instruction, controls the display panel 200 to exit the power-saving mode; or, the main board 100 can also send a second exit instruction to the timing controller 300. The timing controller 300, in response to the second exit instruction, waits for the first number of frames and then controls the display panel 200 to exit the power-saving mode. The embodiments of the present application ensure that when the display panel 200 exits the power-saving mode, the number of consecutive frames in which the display panel 200 is in the power-saving mode is even, thereby avoiding charge residue.

[0037] Among them, the first exit instruction and the second exit instruction are different. The timing controller 300, in response to the first exit instruction, immediately controls the display panel 200 to exit the power-saving mode; while the timing controller 300, in response to the second exit instruction, controls the display panel 200 to exit the power-saving mode after a first number of frames. The specific setting methods of the first exit instruction and the second exit instruction in the embodiments of the present application are not limited. In actual applications, they can be flexibly set according to requirements. For example, the first exit instruction is 00 and the second exit instruction is 01; or, the first exit instruction is 01 and the second exit instruction is 00.

[0038] In summary, the display device provided by the embodiments of the present application includes a main board and a display panel connected to the main board, and the display panel includes a timing controller. Among them, the timing controller is configured to: control the display panel to enter the power-saving mode; the main board is configured to: in response to the display screen switching from static to dynamic, detect the continuous number of frames in which the display panel is in the power-saving mode, and in response to the continuous number of frames being an even number, send a first exit instruction to the timing controller; the timing controller is further configured to control the display panel to exit the power-saving mode in response to the first exit instruction. After the display panel enters the power-saving mode in the embodiments of the present application, if it is detected that the display screen switches from static to dynamic, the display panel is controlled to exit the power-saving mode when the continuous number of frames in which the display panel is in the power-saving mode is an even number, so as to ensure that the positive and negative frame polarities cancel each other out, avoid charge residue at both ends of the liquid crystal, and thus avoid screen flickering caused by liquid crystal polarization due to charge residue, improving the display effect and extending the service life of the display panel.

[0039] In some embodiments, the main board 100 is further configured to: in response to the display screen switching from dynamic to static, send a first entry instruction to the timing controller 300 after a second number of frames; the timing controller 300 is further configured to: in response to the first entry instruction, control the display panel 200 to enter the power-saving mode.

[0040] In other embodiments, the main board 100 is further configured to: in response to the display screen switching from dynamic to static, send a second entry instruction to the timing controller 300; the timing controller 300 is further configured to: in response to the second entry instruction, control the display panel 200 to enter the power-saving mode after a second number of frames.

[0041] The main board 100 continuously detects the display screen. If it is detected that the display screen switches from dynamic to static, the display panel 200 is controlled to enter the power-saving mode. In the embodiments of the present application, when the main board 100 detects that the display screen switches from dynamic to static, it does not control the display panel 200 to immediately enter the power-saving mode, but controls the display panel 200 to enter the power-saving mode after delaying the second number of frames. The embodiments of the present application do not limit the specific number of frames of the second number of frames. The second number of frames can be any number of frames, and can be flexibly set according to requirements in actual applications. For example, the second number of frames can be 1 frame, 2 frames, 3 frames, or 4 frames, etc. In some embodiments, the second number of frames is negatively correlated with the anti-polarization ability of the display panel. The stronger the anti-polarization ability of the display panel, the smaller the second number of frames; the weaker the anti-polarization ability of the display panel, the larger the second number of frames. Of course, the second number of frames can also be related to the design characteristics of the display panel, etc., and the second number of frames can be preset in combination with the test situation of the display panel in actual applications.

[0042] If the display screen switches from dynamic to static, the main board 100 can send a first entry instruction to the timing controller 300 after waiting for a second number of frames. In response to the first entry instruction, the timing controller 300 controls the display panel 200 to enter the power-saving mode; alternatively, the main board 100 can also send a second entry instruction to the timing controller 300. In response to the second entry instruction, the timing controller 300 waits for a second number of frames and then controls the display panel 200 to enter the power-saving mode. In the embodiments of the present application, the time for the display panel 200 to enter the power-saving mode is delayed, and the frequency of static electricity accumulation is reduced. Even though there may still be screen flickering due to charge residue, the probability of flickering during the terminal application process is reduced due to the time delay.

[0043] Among them, the first entry instruction and the second entry instruction are different. In response to the first entry instruction, the timing controller 300 immediately controls the display panel 200 to enter the power-saving mode; while in response to the second entry instruction, the timing controller 300 controls the display panel 200 to enter the power-saving mode after a second number of frames. The embodiments of the present application do not limit the specific setting methods of the first entry instruction and the second entry instruction, and can be flexibly set according to requirements in actual applications. For example, the first entry instruction is 11 and the second entry instruction is 10; or, the first entry instruction is 10 and the second entry instruction is 11.

[0044] Exemplarily, the display panel 200 enters the power-saving mode at the 1st frame and exits the power-saving mode after 5 frames; enters the power-saving mode at the 8th frame and exits the power-saving mode after 6 frames; enters the power-saving mode at the 16th frame and exits after 3 frames; within 18 frames, the display panel enters and exits the power-saving mode 3 times. If based on the technical solution provided by the embodiments of the present application, the display panel 200 enters the power-saving mode after delaying a second number of frames each time, such as entering the power-saving mode after delaying 6 frames, then the display panel 200 enters the power-saving mode at the 7th frame and exits the power-saving mode after 5 frames; enters the power-saving mode at the 14th frame and exits the power-saving mode after 6 frames; enters the power-saving mode at the 22nd frame and exits after 3 frames. Within the same 18-frame time, the display panel only enters the power-saving mode 2 times, reducing the frequency of static electricity accumulation.

[0045] In summary, the display device provided by the embodiments of the present application includes a main board and a display panel connected to the main board, and the display panel includes a timing controller. Among them, when the main board detects that the display screen switches from dynamic to static, it controls the display panel to enter the power-saving mode after delaying a certain number of frames. The embodiments of the present application delay the time for the display panel to enter the power-saving mode, reduce the frequency of static electricity accumulation, and even though there may still be screen flickering due to charge residue, the probability of flickering during the terminal application process is reduced due to the time delay, improving the display effect and extending the service life of the display panel.

[0046] Exemplarily, as Figure 2 shown, when playing audio, only the progress bar 210 on the display screen of the display panel 200 changes once per second. Within a time of millisecond level, the display screen is static and non-refreshed. Thus, when the main board detects that the display screen is static, it controls the display panel 200 to enter the power-saving mode after delaying for 8 frames of time; and when the progress bar 210 changes per second, it controls the display panel 200 to exit the power-saving mode. After multiple experiments, as Figure 3 shown, in the case that the display panel 200 directly enters the power-saving mode, the display panel 200 starts to flash after continuously playing audio for 1 to 2 hours; while in the case that the display panel 200 enters the power-saving mode after delaying for 8 frames, the display panel 200 does not flash even after continuously playing audio for 6 hours. It can be seen that the embodiments of the present application improve the display effect.

[0047] It should be understood that the technical solutions provided by the embodiments of the present application can be used alone or in combination. For example, it can be controlled that the display panel exits the power-saving mode only when the number of consecutive frames in which the display panel is in the power-saving mode is an even number when the display panel exits the power-saving mode; or it can be controlled that the display panel enters the power-saving mode after delaying a certain number of frames only when the display panel enters the power-saving mode; or it can also be controlled that the display panel enters the power-saving mode after delaying a certain number of frames when the display panel enters the power-saving mode, and it can be controlled that the display panel exits the power-saving mode only when the number of consecutive frames in which the display panel is in the power-saving mode is an even number when the display panel exits the power-saving mode.

[0048] In some embodiments, the display device provided by the embodiments of the present application includes but is not limited to: AMOLED (Active Matrix Organic Light Emitting Diode) display, Micro LED (Micro Light Emitting Diode) display, Mini Led (Miniature Light Emitting Diode) display, etc.

[0049] The embodiments of the present application also provide a control method for a display device.

[0050] Please refer to Figure 4 , Figure 4 which is a flowchart of a control method for a display device provided by the embodiments of the present application. The display device includes a main board and a display panel connected to the main board, and the display panel includes a timing controller. As Figure 4 shown, the control method may include the following steps:

[0051] Step 410: The timing controller controls the display panel to enter the power-saving mode;

[0052] Step 420: The main board detects the number of consecutive frames for which the display panel is in the power-saving mode in response to the display screen switching from static to dynamic.

[0053] Step 430: The main board sends a first exit instruction to the timing controller in response to the number of consecutive frames being even.

[0054] Step 440: The timing controller controls the display panel to exit the power-saving mode in response to the first exit instruction.

[0055] In some embodiments, after the above step 420, the control method further includes: the main board sends a first exit instruction to the timing controller after a first number of frames in response to the number of consecutive frames being odd; the timing controller controls the display panel to exit the power-saving mode in response to the first exit instruction. Wherein, the first number of frames is odd.

[0056] In some embodiments, after the above step 420, the control method further includes: the main board sends a second exit instruction to the timing controller in response to the number of consecutive frames being odd; the timing controller controls the display panel to exit the power-saving mode after a first number of frames in response to the second exit instruction. Wherein, the first number of frames is odd.

[0057] In some embodiments, the power-saving mode includes a panel self-refresh mode.

[0058] Please refer to Figure 5 , Figure 5 is a flowchart of a control method for a display device provided by an embodiment of the present application. The display device includes a main board and a display panel connected to the main board, and the display panel includes a timing controller. As Figure 5 shown, the control method may include the following steps:

[0059] Step 510: The main board sends a first entry instruction to the timing controller after a second number of frames in response to the display screen switching from dynamic to static.

[0060] Step 520: The timing controller controls the display panel to enter the power-saving mode in response to the first entry instruction.

[0061] In some embodiments, the control method further includes: the main board sends a second entry instruction to the timing controller in response to the display screen switching from dynamic to static; the timing controller controls the display panel to enter the power-saving mode after a second number of frames in response to the second entry instruction.

[0062] In some embodiments, the second number of frames has a negative correlation with the anti-polarization ability of the display panel.

[0063] In some embodiments, the power-saving mode includes a panel self-refresh mode.

[0064] It should be understood that the control method provided in the embodiments of the present application can be used alone or in combination. For example, when the display panel exits the power-saving mode, the display panel can be controlled to exit the power-saving mode when the number of consecutive frames in which the display panel is in the power-saving mode is an even number; or when the display panel enters the power-saving mode, the display panel can be controlled to enter the power-saving mode after a certain number of frames are delayed; or when the display panel enters the power-saving mode, the display panel can be controlled to enter the power-saving mode after a certain number of frames are delayed, and when the display panel exits the power-saving mode, the display panel can be controlled to exit the power-saving mode when the number of consecutive frames in which the display panel is in the power-saving mode is an even number.

[0065] Next, a combined usage mode of the control method will be introduced by way of an example.

[0066] Please refer to Figure 6 , Figure 6 which is a flowchart of a control method for a display device provided in the embodiments of the present application. The display device includes a main board and a display panel connected to the main board, and the display panel includes a timing controller. As Figure 6 shown, the control method may include the following steps:

[0067] Step 610: The main board sends a first entry instruction to the timing controller after a second number of frames in response to the display screen switching from dynamic to static;

[0068] Step 620: The timing controller controls the display panel to enter the power-saving mode in response to the first entry instruction;

[0069] Step 630: The main board detects the number of consecutive frames in which the display panel is in the power-saving mode in response to the display screen switching from static to dynamic;

[0070] Step 640: The main board sends a first exit instruction to the timing controller in response to the number of consecutive frames being an even number;

[0071] Step 650: The timing controller controls the display panel to exit the power-saving mode in response to the first exit instruction.

[0072] For the specific descriptions of the steps and corresponding beneficial effects in the control method of the display device, reference can be made to the detailed description of the display device above, which will not be elaborated here.

[0073] The above has introduced in detail a display device and a control method for the display device provided in the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A display device, characterized in that: The display device comprises a mainboard and a display panel connected to the mainboard, and the display panel comprises a timing controller; wherein, The timing controller is configured to: control the display panel to enter a power saving mode; The mainboard is configured to: in response to the display screen switching from static to dynamic, detect the continuous frame number of the display panel in the power saving mode; in response to the continuous frame number being an even number, send a first exit instruction to the timing controller; The timing controller is further configured to: in response to the first exit instruction, control the display panel to exit the power saving mode.

2. The display device according to claim 1, characterized in that The mainboard is further configured to: in response to the continuous frame number being an odd number, send the first exit instruction to the timing controller after a first frame number; wherein the first frame number is an odd number.

3. The display device according to claim 1, characterized in that The mainboard is further configured to: in response to the continuous frame number being an odd number, send a second exit instruction to the timing controller; The timing controller is further configured to: in response to the second exit instruction, control the display panel to exit the power saving mode after a first number of frames; wherein the first number of frames is an odd number.

4. The display device according to claim 1, characterized in that The mainboard is further configured to: in response to the display screen switching from the dynamic to the static, send a first entry instruction to the timing controller after a second number of frames; The timing controller is further configured to control the display panel to enter the power saving mode in response to the first entry instruction.

5. The display device according to claim 1, characterized in that: The mainboard is further configured to: in response to the display screen switching from the dynamic to the static, send a second entry instruction to the timing controller; The timing controller is further configured to: in response to the second entry instruction, control the display panel to enter the power saving mode after a second number of frames.

6. The display device according to claim 4 or 5, characterized in that: The second frame number is negatively correlated with the anti-polarization capability of the display panel.

7. The display device according to claim 1, characterized in that The power saving mode includes a panel self-refresh mode.

8. A method for controlling a display device, characterized in that: The display device comprises a mainboard and a display panel connected to the mainboard, and the display panel comprises a timing controller; the method comprises: The timing controller controls the display panel to enter a power saving mode; The mainboard detects the number of continuous frames of the display panel in the power saving mode in response to the display screen switching from static to dynamic; and sends a first exit instruction to the timing controller in response to the continuous number of frames being an even number; The timing controller controls the display panel to exit the power saving mode in response to the first exit instruction.

9. The control method of the display device according to claim 8, characterized in that: After the mainboard detects the number of continuous frames of the display panel being in the power saving mode in response to the display screen switching from static to dynamic, the method further includes: In response to the continuous frame number being an odd number, the mainboard sends the first exit instruction to the timing controller after a first frame number has passed; wherein the first frame number is an odd number.

10. The control method of the display device according to claim 8, characterized in that: The method further includes: in response to the display screen switching from the dynamic to the static, the mainboard sends a first entry instruction to the timing controller after a second number of frames; The timing controller controls the display panel to enter the power saving mode, including: the timing controller controls the display panel to enter the power saving mode in response to the first entry instruction.

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