Display device and driving method of display device

Abstract

The invention discloses a display device and a driving method of the display device. The display device comprises a memory and a backlight module connected with the memory, wherein the memory is used for storing dimming data of at least one picture frame, and the dimming data of each picture frame is used for controlling the backlight brightness of the backlight module in the display process of the picture frame. The backlight brightness can be matched with the displayed picture frame, synchronous switching adjustment of the backlight brightness and the picture frame is achieved, and the display effect is improved.

Description

Technical Field

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

[0002] With the development of display technologies, backlight technologies have received increasing attention. By adjusting the backlight brightness, it helps to achieve high contrast, high color gamut, and picture uniformity, ensuring that the display device can achieve the best display effect in different environments and scenarios. How to control the backlight brightness to improve the display effect is a topic that the industry has been committed to researching. Summary of the Invention

[0003] Embodiments of this application provide a display device and a driving method for the display device, which can make the backlight brightness match the displayed picture frame, realize synchronous switching and adjustment of the backlight brightness and the picture frame, and improve the display effect.

[0004] In a first aspect, embodiments of this application provide a display device, which includes a memory and a backlight module connected to the memory. Among them, the memory is used to store dimming data of at least one picture frame, and the dimming data of each picture frame is used to control the backlight brightness of the backlight module during the display process of the picture frame.

[0005] Optionally, the memory is configured to: send the dimming data of the first picture frame to the backlight module; the backlight module is configured to: during the display process of the first picture frame, control the backlight brightness according to the dimming data of the first picture frame.

[0006] Optionally, the display device further includes a main control module connected to the memory. Among them, the main control module is configured to: send a frame synchronization signal of the first picture frame to the memory; the memory is configured to: in response to the frame synchronization signal of the first picture frame, send the dimming data of the first picture frame to the backlight module; the backlight module is configured to: in response to the dimming data of the first picture frame, control the backlight brightness according to the dimming data of the first picture frame.

[0007] Optionally, the main control module includes a main board and a timing controller connected to the main board, and the timing controller is also connected to the memory. Among them, the main board is configured to: send display data to the timing controller; the timing controller is configured to: according to the display data, send the frame synchronization signal of the first picture frame to the memory.

[0008] Optionally, the memory is used to store a first mapping relationship, which includes a mapping relationship between multiple groups of the frame synchronization signals and the dimming data. The memory is configured to: in response to the frame synchronization signal of the first picture frame, obtain the dimming data of the first picture frame from the first mapping relationship; and send the dimming data of the first picture frame to the backlight module.

[0009] Optionally, the backlight module includes a backlight driving chip and a backlight source connected to the backlight driving chip, and the backlight driving chip is also connected to the memory. Among them, the memory is configured to: send the dimming data of the first picture frame to the backlight driving chip; and the backlight driving chip is configured to: during the display process of the first picture frame, control the brightness of the backlight source according to the dimming data of the first picture frame.

[0010] Optionally, the display device further includes a main control module and a display module connected to the main control module. Among them, the main control module is configured to: send the display data of the first picture frame to the display module; and the display module is configured to: display the first picture frame according to the display data of the first picture frame.

[0011] Optionally, the main control module includes a main board and a timing controller connected to the main board, the display module includes a source driving chip and a display panel connected to the source driving chip, and the source driving chip is also connected to the timing controller. Among them, the main board is configured to: send the display data of at least one of the picture frames to the timing controller; the timing controller is configured to: send the display data of the first picture frame to the source driving chip; and the source driving chip is configured to: drive the display panel to display the first picture frame according to the display data of the first picture frame.

[0012] In a second aspect, an embodiment of the present application provides a driving method for a display device. The display device includes a memory and a backlight module connected to the memory; wherein, the memory is used to store the dimming data of at least one picture frame. The driving method includes: during the display process of the picture frame, controlling the backlight brightness of the backlight module according to the dimming data of the picture frame.

[0013] Optionally, the driving method further includes: generating the dimming data of the picture frame according to the display data of the picture frame; and writing the dimming data of at least one of the picture frames into the memory.

[0014] In summary, the technical solution provided by the embodiments of the present application stores the dimming data of at least one picture frame in a memory, so that during the display process of each picture frame, the dimming data of the picture frame can be obtained from the memory to control the backlight brightness of the backlight module. By storing the dimming data of at least one picture frame in the memory, the embodiments of the present application do not require a high-order chip to calculate the dimming data of each picture frame during the display process of at least one picture frame, and can quickly obtain the dimming data of each picture frame, so as to timely adjust the backlight brightness according to the dimming data, making the backlight brightness match the displayed picture frame, realizing the synchronous switching adjustment of the backlight brightness and the picture frame, and improving the display effect. Moreover, by storing the dimming data of at least one picture frame in the memory, a conventional memory can be used to store and read the dimming data, reducing the equipment configuration requirements for the display device, saving high-order chips in the display device, streamlining the system architecture of the display device, being compatible with existing display devices, and realizing the improvement of the display effect on the basis of low power consumption and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a display device provided by an embodiment of the present application;

[0016] Figure 2 is a schematic diagram of another display device provided by an embodiment of the present application;

[0017] Figure 3 is a schematic diagram of a display device;

[0018] Figure 4 is a flowchart of a driving method of a display device provided by an embodiment of the present application;

[0019] Figure 5 is a schematic diagram of a process for determining and storing dimming data provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present application will be described below with reference to 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.

[0021] 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.

[0022] The embodiments provided by the present application are similar, and the features in different embodiments can be combined with each other.

[0023] The description order of the following embodiments does not limit the preferred order of the embodiments.

[0024] Please refer to Figure 1 , Figure 1 which is a schematic diagram of a display device provided by an embodiment of the present application. As Figure 1 shown, the display device includes a memory 100 and a backlight module 200 connected to the memory 100.

[0025] The memory 100 is used to store dimming data of at least one picture frame. The specific type of the memory 100 is not limited in the embodiments of the present application, and can be flexibly selected according to requirements in practical applications. In some embodiments, the memory 100 includes but is not limited to any one of the following: Flash Memory, Static Random-Access Memory (SRAM), Dynamic Random-Access Memory (DRAM), Universal Flash Storage (UFS), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Embedded Multi-Media Card (eMMC), Phase-Change Memory (PCM), Double Data Rate Synchronous Dynamic Random-Access Memory (DDR SDRAM), etc. To ensure the stability of data storage, the memory 100 can be set as a non-volatile memory such as Flash Memory.

[0026] The backlight module 200 is used to provide backlight for the display device, so as to compensate for the brightness or color of the picture frame displayed in the display device. In the embodiments of the present application, the dimming data of each picture frame stored in the memory 100 is used to control the backlight brightness of the backlight module 200 during the display process of the picture frame, so that the backlight brightness matches the displayed picture frame, realizing the synchronous switching adjustment of the backlight brightness and the picture frame, and improving the display effect.

[0027] Among them, the dimming data of at least one picture frame can be pre-written into the memory 100. For example, the dimming data of at least one picture frame can be written into the memory 100 by the manufacturer or the user. Exemplarily, for each picture frame to be displayed by the display device, the manufacturer or the user can determine the dimming data of the picture frame according to the display data of the picture frame. For example, a high-order chip with a local dimming function outputs the dimming data of the picture frame according to the display data of the picture frame, and then writes the dimming data of at least one picture frame into the memory 100. In the case where the picture frame to be displayed by the display device changes, the dimming data of the picture frame can be re-determined according to the changed picture frame, and then the memory 100 can be re-programmed according to the determined dimming data. For other introductions and descriptions of the determination and writing process of the dimming data, please refer to the following embodiments, and details are not described here.

[0028] In some embodiments, taking the display device displaying the first picture frame as an example, the memory 100 is configured to send the dimming data of the first picture frame to the backlight module 200; the backlight module 200 is configured to control the backlight brightness according to the dimming data of the first picture frame during the display process of the first picture frame. Among them, the memory 100 can send the dimming data of the first picture frame to the backlight module 200 during the display process of the first picture frame or before the first picture frame is displayed; so that the backlight module 200 can timely adjust the backlight brightness according to the dimming data of the first picture frame during the display process of the first picture frame, so that the backlight brightness matches the display of the picture frame, effectively improving the display effect. Among them, the data transmission between the memory 100 and the backlight module 200 can meet a specific communication protocol. For example, it can meet the Serial Peripheral Interface (SPI) communication protocol.

[0029] In some embodiments, such as Figure 1As shown, the backlight module 200 includes a backlight driving chip 210 and a backlight source 220 connected to the backlight driving chip 210. The backlight driving chip 210 is also connected to the memory 100. Among them, the memory 100 is configured to send the dimming data of the first picture frame to the backlight driving chip 210; the backlight driving chip 210 is configured to control the brightness of the backlight source 220 according to the dimming data of the first picture frame during the display process of the first picture frame. The specific type of the backlight source 220 is not limited in the embodiments of the present application, and can be flexibly selected according to requirements in practical applications. In some embodiments, the backlight source 220 includes, but is not limited to, any one of the following: Light-Emitting Diode (LED), Mini Light-Emitting Diode (Mini LED), Organic Light-Emitting Diode (OLED), Quantum Dot (QD), etc.

[0030] To ensure the synchronous switching adjustment of the backlight brightness and the picture frame, in some embodiments, as Figure 1 shown, the display device further includes a main control module 300 connected to the memory 100. The main control module 300 can be used to control the display of the picture frame. In the embodiments of the present application, the main control module 300 is configured to send a frame synchronization signal of the first picture frame to the memory 100; the memory 100 is configured to send the dimming data of the first picture frame to the backlight module 200 in response to the frame synchronization signal of the first picture frame; the backlight module 200 is configured to control the backlight brightness according to the dimming data of the first picture frame in response to the dimming data of the first picture frame.

[0031] Among them, the frame synchronization signal can be a vertical synchronization (Vsync) signal. Vertical synchronization refers to the synchronization between the refresh rate of the display device and the output frame rate of the main control module 300, avoiding abnormal display and improving the visual experience. Of course, the frame synchronization signal can also be implemented as other synchronization signals, which are not limited in the embodiments of the present application, and can be flexibly selected according to requirements in actual applications. For example, the frame synchronization signal can also be implemented as an AdaptiveSync signal, etc. Each time the display device refreshes the picture frame, the main control module 300 can send the frame synchronization signal of the current picture frame to the memory 100, and the current picture frame is the picture frame that the display device is currently displaying or about to display. Taking the current picture frame as the first picture frame as an example, when the display device refreshes to display the first picture frame, the main control module 300 can send the frame synchronization signal of the first picture frame to the memory 100; when the memory 100 receives the frame synchronization signal of the first picture frame, in response to the frame synchronization signal of the first picture frame, it obtains the dimming data of the first picture frame from the dimming data of at least one picture frame stored in itself, and sends the dimming data of the first picture frame to the backlight module 200; the backlight module 200 responds to the received dimming data of the first picture frame, and adjusts the backlight brightness in a timely manner according to the dimming data of the first picture frame, so that the backlight brightness matches the display of the first picture frame.

[0032] In some embodiments, as Figure 1 shown, the main control module 300 includes a main board 310 and a timing controller 320 connected to the main board 310, and the timing controller 320 is also connected to the memory 100. The main board 310 can be a System on Chip (SOC). Among them, the main board 310 is configured to send display data to the timing controller 320; the timing controller 320 is configured to send the frame synchronization signal of the first picture frame to the memory 100 according to the display data. Among them, the main board 310 can obtain display data through memory or network, etc., and the display data includes the display data of at least one picture frame, and the display data of each picture frame can include the gray scale values of each pixel or sub-pixel in the picture frame, etc. The main board 310 sends the display data to the timing controller 320, and the timing controller 320 controls the display device to display at least one picture frame according to a certain timing according to the display data. When the display device refreshes to display the first picture frame, the timing controller 320 can send the frame synchronization signal of the first picture frame to the memory 100.

[0033] To ensure that the dimming data obtained by the memory 100 matches the currently displayed or about-to-be-displayed picture frame, in some embodiments, the memory 100 is used to store a first mapping relationship, which includes the mapping relationships between multiple groups of frame synchronization signals and dimming data. Based on this, the memory 100 is configured to obtain the dimming data of the first picture frame from the first mapping relationship in response to the frame synchronization signal of the first picture frame; and send the dimming data of the first picture frame to the backlight module 200. Of course, the embodiments of the present application do not exclude that the memory 100 stores the dimming data of at least one picture frame in other ways. For example, the manufacturer or user can arrange the dimming data of at least one picture frame in the display timing order of the picture frames, and write the dimming data with a specific order into the memory 100, so that the memory 100 performs a count each time it receives a frame synchronization signal and obtains the dimming data corresponding to the order of the count. In addition, as Figure 1 shown, the backlight module 200 may include a backlight driving chip 210 and a backlight source 220; the memory 100 sends the dimming data of the first picture frame to the backlight driving chip 210 in response to the frame synchronization signal of the first picture frame; the backlight driving chip 210 controls the brightness of the backlight source 220 according to the dimming data of the first picture frame in response to the dimming data of the first picture frame.

[0034] In some embodiments, as Figure 2 shown, the display device further includes a main control module 300 and a display module 400 connected to the main control module 300. Among them, the main control module 300 is configured to send the display data of the first picture frame to the display module 400; the display module 400 is configured to display the first picture frame according to the display data of the first picture frame. In the embodiments of the present application, the main control module 300 may send the display data of at least one picture frame to the display module 400 according to a specific timing. Taking the first picture frame as an example, the main control module 300 sends the display data of the first picture frame to the display module 400; the display module 400 displays the first picture frame in response to the display data of the first picture frame. In some embodiments, as Figure 2 shown, the main control module 300 includes a main board 310 and a timing controller 320 connected to the main board 310, the display module 400 includes a source driving chip 410 and a display panel 420 connected to the source driving chip 410, and the source driving chip 410 is further connected to the timing controller 320. Among them, the main board 310 is configured to send the display data of at least one picture frame to the timing controller 320; the timing controller 320 is configured to send the display data of the first picture frame to the source driving chip 410; the source driving chip 410 is configured to drive the display panel 420 to display the first picture frame according to the display data of the first picture frame.

[0035] In summary, the technical solution provided by the embodiments of the present application stores the dimming data of at least one picture frame in a memory, so that during the display process of each picture frame, the dimming data of the picture frame can be obtained from the memory to control the backlight brightness of the backlight module. By storing the dimming data of at least one picture frame in the memory, the embodiments of the present application do not require a high-order chip to calculate the dimming data of each picture frame during the display process of at least one picture frame, and can quickly obtain the dimming data of each picture frame, so as to adjust the backlight brightness in a timely manner according to the dimming data, making the backlight brightness match the displayed picture frame, realizing the synchronous switching adjustment of the backlight brightness and the picture frame, and improving the display effect. Moreover, by storing the dimming data of at least one picture frame in the memory, a conventional memory can be used to store and read the dimming data, reducing the equipment configuration requirements for the display device, saving high-order chips in the display device, streamlining the system architecture of the display device, being compatible with existing display devices, and realizing the improvement of the display effect on the basis of low power consumption and low cost.

[0036] For example, Figure 3 is a schematic diagram of a display device. As Figure 3 shown, the display device includes a main board 3011, a timing controller 3012, a processor 3020, a backlight driving chip 3031, a backlight source 3032, a source driving chip 3041, and a display panel 3042. To achieve the matching of the backlight brightness and the picture frame, the main board 3011 and the timing controller 3012 need to be set as high-order chips with local dimming functions, and the processor 3020 needs to calculate the dimming data of the picture frame according to the display data of the picture frame, resulting in a significant increase in the cost of the display device. Moreover, limited by the calculation and processing time of the processor 3020, the adjustment of the backlight brightness will be delayed compared with the switching of the picture frame, resulting in misalignment between the backlight brightness and the picture frame.

[0037] As Figure 1 and Figure 2 shown, the main board 310 and the timing controller 320 in the embodiments of the present application do not need to have local dimming functions, and the adjustment of the backlight brightness can be achieved by the cooperation of the memory 100 and the backlight module 200. To ensure the synchronous switching adjustment of the backlight brightness and the picture frame, the memory 100 and the timing controller 320 only need to maintain frame synchronization, for example, frame synchronization is achieved through a vertical synchronization signal, and the implementation method and system architecture are simple. For commercial display scenarios, the embodiments of the present application also have good applicability. Since the display device in the commercial display scenario usually plays promotional pictures in a loop, by pre-writing the dimming data of at least one picture frame into the memory, the embodiments of the present application can achieve backlight adjustment on the basis of lower cost and lower power consumption. In addition, when the picture frame displayed by the display device is replaced, the manufacturer or user can re-burn the memory according to the replaced picture frame, which has a flexible data upgrade function.

[0038] Correspondingly, an embodiment of the present application further provides a driving method for a display device. Please refer to Figure 4 , Figure 4 which is a flowchart of a driving method for a display device provided by an embodiment of the present application. As Figure 1 or Figure 2 shown, the display device includes a memory and a backlight module connected to the memory. Among them, the memory is used to store dimming data of at least one picture frame. As Figure 4 shown, the driving method includes:

[0039] Step 400: During the display process of the picture frame, control the backlight brightness of the backlight module according to the dimming data of the picture frame stored in the memory.

[0040] In some embodiments, the above step 400 may include: the memory sends the dimming data of the first picture frame to the backlight module; the backlight module controls the backlight brightness according to the dimming data of the first picture frame during the display process of the first picture frame.

[0041] In some embodiments, as Figure 1 or Figure 2 shown, the display device further includes a main control module connected to the memory. The above step 400 may include: the main control module sends a frame synchronization signal of the first picture frame to the memory; the memory responds to the frame synchronization signal of the first picture frame and sends the dimming data of the first picture frame to the backlight module; the backlight module responds to the dimming data of the first picture frame and controls the backlight brightness according to the dimming data of the first picture frame.

[0042] In some embodiments, as Figure 1 or Figure 2 shown, the main control module includes a main board and a timing controller connected to the main board, and the timing controller is also connected to the memory. The above main control module sending a frame synchronization signal of the first picture frame to the memory may include: the main board sends display data to the timing controller; the timing controller sends a frame synchronization signal of the first picture frame to the memory according to the display data.

[0043] In some embodiments, the memory is used to store a first mapping relationship, and the first mapping relationship includes a mapping relationship between multiple groups of frame synchronization signals and dimming data. The above memory responding to the frame synchronization signal of the first picture frame and sending the dimming data of the first picture frame to the backlight module may include: the memory responds to the frame synchronization signal of the first picture frame, obtains the dimming data of the first picture frame from the first mapping relationship; the memory sends the dimming data of the first picture frame to the backlight module.

[0044] In some embodiments, as Figure 1 or Figure 2As shown, the backlight module includes a backlight driving chip and a backlight source connected to the backlight driving chip, and the backlight driving chip is also connected to a memory. The memory sends dimming data of a first frame of a picture to the backlight module, which may include: the memory sends the dimming data of the first frame of a picture to the backlight driving chip. During the display process of the first frame of a picture, the backlight module controls the backlight brightness according to the dimming data of the first frame of a picture, which may include: during the display process of the first frame of a picture, the backlight driving chip controls the brightness of the backlight source according to the dimming data of the first frame of a picture.

[0045] In some embodiments, as Figure 2 As shown, the display device further includes a main control module and a display module connected to the main control module. The driving method may further include: the main control module sends display data of a first frame of a picture to the display module; the display module displays the first frame of a picture according to the display data of the first frame of a picture.

[0046] In some embodiments, as Figure 2 As shown, the main control module includes a main board and a timing controller connected to the main board, the display module includes a source driving chip and a display panel connected to the source driving chip, and the source driving chip is also connected to the timing controller. The main control module sends display data of a first frame of a picture to the display module, which may include: the main board sends display data of at least one frame of a picture to the timing controller; the timing controller sends display data of the first frame of a picture to the source driving chip. The display module displays the first frame of a picture according to the display data of the first frame of a picture, which may include: the source driving chip drives the display panel to display the first frame of a picture according to the display data of the first frame of a picture.

[0047] In the embodiments of the present application, the display data of a frame of a picture may include the gray scale values of each pixel or sub-pixel in the frame of a picture. The dimming data of the frame of a picture can be determined according to the display data of the frame of a picture, and the dimming data of the frame of a picture is used to control the backlight brightness of the backlight module during the display process of the frame of a picture. Based on this, in some embodiments, the driving method further includes: generating the dimming data of the frame of a picture according to the display data of the frame of a picture; writing the dimming data of at least one frame of a picture into the memory.

[0048] Among them, the dimming data of the frame of a picture may include the dimming data of at least one backlight zone. For example, it includes the brightness values of at least one backlight zone. In the embodiments of the present application, the backlight module may be divided into at least one backlight zone, such as dividing the backlight source into at least one backlight zone; for each backlight zone, the dimming data of the backlight zone can be determined according to the gray scale value of the pixel or sub-pixel corresponding to the backlight zone in the frame of a picture. Based on this, the dimming data of at least one frame of a picture can be determined, and then the memory is burned according to the dimming data of at least one frame of a picture.

[0049] For example, asFigure 5 As shown, for multiple picture frames to be displayed by a display device, a manufacturer or user can generate dimming data for each picture frame through a high-order chip 510 with a local dimming function. For example, input the picture frame into the high-order chip 510 so that the high-order chip 510 outputs the dimming data of the picture frame. Then, the manufacturer or user programs the memory 100 according to the dimming data of multiple picture frames output by the high-order chip 510. When the picture frame to be displayed by the display device is replaced, it is only necessary to regenerate the dimming data according to the replaced picture frame and reprogram the memory 100.

[0050] For other introductions and explanations of the steps and their beneficial effects in the driving method of the display device, please refer to the embodiments of the above display device, which will not be elaborated here.

[0051] The above has introduced in detail a display device and a driving method of the display device provided by 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 description of the above embodiments is 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 includes a memory and a backlight module connected to the memory; wherein, The memory is used to store dimming data of at least one picture frame, and the dimming data of each picture frame is used to control the backlight brightness of the backlight module during the display process of the picture frame.

2. The display device according to claim 1, characterized in that The memory is configured to: send the dimming data of the first picture frame to the backlight module; The backlight module is configured to control the backlight brightness according to the dimming data of the first picture frame during the display process of the first picture frame.

3. The display device according to claim 2, characterized in that The display device also includes a main control module connected to the memory; wherein, The main control module is configured to: send a frame synchronization signal of the first picture frame to the memory; The memory is configured to: send the dimming data of the first picture frame to the backlight module in response to the frame synchronization signal of the first picture frame; The backlight module is configured to: respond to the dimming data of the first picture frame and control the backlight brightness according to the dimming data of the first picture frame.

4. The display device according to claim 3, characterized in that The main control module includes a main board and a timing controller connected to the main board, and the timing controller is also connected to the memory; wherein, The mainboard is configured to: send display data to the timing controller; The timing controller is configured to send the frame synchronization signal of the first picture frame to the memory according to the display data.

5. The display device according to claim 3, characterized in that: The memory is used to store a first mapping relationship, wherein the first mapping relationship includes a plurality of mapping relationships between the frame synchronization signals and the dimming data; The memory is configured to: in response to the frame synchronization signal of the first picture frame, obtain the dimming data of the first picture frame from the first mapping relationship; The dimming data of the first picture frame is sent to the backlight module.

6. The display device according to claim 2, characterized in that: The backlight module includes a backlight driver chip and a backlight source connected to the backlight driver chip, and the backlight driver chip is also connected to the memory; wherein, The memory is configured to: send the dimming data of the first picture frame to the backlight driving chip; The backlight driving chip is configured to control the brightness of the backlight source according to the dimming data of the first picture frame during the display process of the first picture frame.

7. The display device according to claim 1, characterized in that: The display device also includes a main control module and a display module connected to the main control module; wherein, The main control module is configured to: send display data of the first picture frame to the display module; The display module is configured to display the first picture frame according to the display data of the first picture frame.

8. The display device according to claim 7, characterized in that: The main control module includes a mainboard and a timing controller connected to the mainboard, the display module includes a source driver chip and a display panel connected to the source driver chip, and the source driver chip is also connected to the timing controller; wherein, The mainboard is configured to: send display data of at least one picture frame to the timing controller; The timing controller is configured to: send the display data of the first picture frame to the source driver chip; The source driver chip is configured to drive the display panel to display the first frame according to the display data of the first frame.

9. A method for driving a display device, characterized in that: The display device includes a memory and a backlight module connected to the memory; wherein the memory is used to store dimming data of at least one picture frame; and the driving method includes: During the display process of the picture frame, the backlight brightness of the backlight module is controlled according to the dimming data of the picture frame.

10. The method for driving a display device according to claim 9, characterized in that: The driving method further includes: Generating the dimming data of the picture frame according to the display data of the picture frame; The dimming data of at least one of the picture frames is written into the memory.

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