Backlight data processing method, display chip and display device

Abstract

The present invention discloses a backlight data processing method, a display chip, and a display device. The method includes: determining a target image area in a first image frame where a moving object is located based on display data corresponding to two adjacent image frames; determining a backlight offset parameter corresponding to a second image frame based on characteristic attribute parameters corresponding to the target image area and initial motion parameters corresponding to the moving object, wherein the second image frame is the frame following the first image frame; and adjusting the first backlight data corresponding to the first image frame based on the backlight offset parameter to generate target backlight data required for displaying the second image frame. Because the target backlight data is estimated by the backlight offset parameter based on the current backlight data, when the target backlight data is used for backlight control, the time delay between the image display of the next image frame and the backlight lighting can be reduced, so that the backlight brightness is closer to the expected value, the brightness and contrast of the displayed image are enhanced, the display effect is improved, and the display performance is optimized.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a backlight data processing method, a display chip, and a display device. Background Art

[0002] Liquid crystal display products usually include a main processor, a display module and a backlight module. Among them, the data transmission between the main processor and the backlight module usually relies on the SPI (English: Serial Peripheral Interface, Chinese: Serial Peripheral Interface) protocol, that is, the main processor will generate corresponding backlight data according to the video / image signal, and send the backlight data to the backlight module through the SPI interface, and send the display data corresponding to the video / image signal to the display module, thereby realizing image display.

[0003] In actual applications, backlight data needs to be calculated and generated based on the display data corresponding to the video / image. This naturally causes a certain delay in the backlight data relative to the display data, making it impossible for the backlight module to turn on in sync with the image display on the display module. That is, the backlight lighting speed will be slightly later than the image display speed.

[0004] However, during the actual display process, this delay between backlight activation and image display can cause the actual backlight brightness provided by the backlight module to fail to meet expectations. When the display device is playing dynamic images, especially those with high-speed continuous motion, the backlight activation will continuously lag behind the screen display, resulting in consistently poor brightness and contrast, seriously affecting the display quality of the display device. Summary of the Invention

[0005] The present invention provides a backlight data processing method, a display chip and a display device, which are used to solve the problem in the prior art that when displaying continuously moving pictures, the backlight is turned on later than the picture is displayed, resulting in poor brightness and contrast of the displayed picture and poor display effect.

[0006] In a first aspect, an embodiment of the present invention provides a method for processing backlight data, comprising:

[0007] determining a target image region in a first image frame based on display data corresponding to two adjacent image frames, wherein the first image frame is the latter of the two adjacent image frames, and the target image region is a region where the moving object is located;

[0008] Determining a backlight offset parameter corresponding to a second image frame according to characteristic attribute parameters corresponding to the target image area and initial motion parameters corresponding to the moving object, wherein the second image frame is a subsequent frame to the first image frame;

[0009] Based on the backlight offset parameter, the first backlight data is adjusted to generate target backlight data, wherein the first backlight data is determined according to the pixel data corresponding to the first image frame, and the target backlight data is used to determine the backlight brightness required for displaying the second image frame.

[0010] In a backlight data processing method provided by an embodiment of the present invention, a target image region where a moving object is located is determined in a current image frame (i.e., a first image frame), and backlight offset parameters corresponding to a next image frame (i.e., a second image frame) are determined based on characteristic attribute parameters corresponding to the target image region and initial motion parameters corresponding to the moving object. The backlight offset parameters are then used to process the first backlight data corresponding to the current image frame to obtain target backlight data required for displaying the next image frame. Since the target backlight data is obtained by predicting the first backlight data corresponding to the current image frame using the backlight offset parameters, the target backlight data is generated earlier than the backlight data calculated based on the pixel data corresponding to the next image frame. In this way, during the backlight control process, there is no need to wait for the backlight data calculated based on the pixel data corresponding to the next image frame. Instead, the backlight of the next image frame is illuminated based on the predicted target backlight data. This reduces the time delay between the image display of the next image frame and the backlight illumination, making the backlight brightness provided for the image display of the next image frame closer to the expected brightness, thereby improving the brightness and contrast of the displayed image, improving the display effect, and optimizing the display performance.

[0011] In an optional embodiment, determining the target image area in the first image frame based on display data corresponding to two adjacent image frames includes:

[0012] performing statistical analysis on pixel data corresponding to a third image frame and pixel data corresponding to the first image frame, and determining a current display screen type based on the statistical analysis result, wherein the third image frame is a previous image frame of the two adjacent image frames, and the display data includes the pixel data and backlight data;

[0013] When it is determined that the current display picture type is a motion picture type, the target image area is determined in the first image frame based on the first backlight data and the second backlight data, wherein the second backlight data is determined according to the pixel data corresponding to the third image frame.

[0014] The above method determines the display image type based on the pixel data corresponding to two adjacent image frames. When the currently displayed image is determined to be a moving image, the method then demarcates a target image region in the first image frame by comparing the backlight data calculated from the pixel data corresponding to the two adjacent image frames. This target image region represents the image region where the moving object is located. This method not only accurately determines the image region where the moving object is located but also facilitates subsequent analysis of the target image region and the moving object, improving the accuracy of subsequent backlight data prediction.

[0015] In an optional embodiment, determining the target image area in the first image frame based on the first backlight data and the second backlight data includes:

[0016] performing comparative analysis on each backlight data belonging to the same backlight partition in the first backlight data and the second backlight data, and selecting a first backlight partition from each backlight partition corresponding to the first image frame based on the comparative analysis result;

[0017] Based on the backlight data corresponding to the first backlight partition in the first backlight data, a second backlight partition is selected from the first backlight partitions, and an image region corresponding to the second backlight partition in the first image frame is used as the target image region.

[0018] The above method can determine the image area where the moving object moves in the two adjacent image frames by comparing the difference in backlight data corresponding to the same backlight partition in two adjacent image frames, thereby further determining the image area corresponding to the moving object in the current image frame, and realizing accurate division of the image area where the moving object is located.

[0019] In an optional embodiment, determining the backlight offset parameter corresponding to the second image frame according to the characteristic attribute parameter corresponding to the target image area and the initial motion parameter corresponding to the moving object includes:

[0020] Determining target motion parameters corresponding to the moving object based on the characteristic attribute parameters and the initial motion parameters, wherein the initial motion parameters are calculated based on display data corresponding to the two adjacent image frames;

[0021] A backlight offset parameter corresponding to the second image frame is determined according to the target motion parameter and a preset display duration, wherein the preset display duration is used to indicate a display period corresponding to one image frame.

[0022] The above method determines the target motion parameters of the moving object using the characteristic attribute parameters of the target image region and the initial motion parameters of the moving object. These target motion parameters are then used to determine backlight offset parameters, which facilitate subsequent prediction of target backlight data based on the backlight offset parameters. Because the target motion parameters reflect information such as the moving object's motion direction and speed, the backlight offset parameters determined from these target motion parameters are then used to predict the backlight data for the next image frame. This results in highly accurate target backlight data, resulting in superior display quality.

[0023] In an optional embodiment, determining the target motion parameter corresponding to the moving object based on the characteristic attribute parameter and the initial motion parameter includes:

[0024] Determining a target scene type corresponding to the target image area based on a magnitude relationship between the characteristic attribute parameter and a preset parameter threshold;

[0025] determining the target motion parameters according to the target scene type and the initial motion parameters;

[0026] The characteristic attribute parameters include at least one of the number of the target image areas, the shape of the moving object in the target image areas, the size of the target image areas, and backlight data corresponding to the target image areas.

[0027] The above method determines the characteristic attribute parameters of the target image area by setting a preset parameter threshold, thereby realizing scene discrimination of the target image area, and further determining the target motion parameters of the moving object under the determined target scene type. The target motion parameters determined in this way can accurately feedback the motion direction, motion speed and other information of the moving object in the next image frame, thereby improving the accuracy of subsequent backlight data prediction.

[0028] In an optional embodiment, determining the target motion parameter according to the target scene type and the initial motion parameter includes:

[0029] Determining target motion trajectory parameters according to initial motion trajectory parameters and preset motion trajectory parameters corresponding to the target scene type, wherein the initial motion parameters include the initial motion trajectory parameters and initial motion speed parameters, and the initial motion trajectory parameters are used to characterize the actual motion trajectory of the moving object;

[0030] Based on the initial motion speed parameter and the preset motion speed parameter corresponding to the target scene type, a target motion speed parameter is determined, wherein the initial motion speed parameter is used to characterize the actual motion speed of the moving object, and the target motion parameter includes the target motion trajectory parameter and the target motion speed parameter.

[0031] In the above method, different scene types are set with their own corresponding preset motion trajectory parameters and their own corresponding preset motion speed parameters. In an embodiment of the present invention, the target scene type, as well as the initial motion trajectory parameters and initial motion speed parameters of the moving object are combined to determine the target motion trajectory parameters and target motion speed parameters. The target motion parameters obtained in this way will be more in line with the actual movement of the moving object, and the accuracy of the backlight data obtained by subsequent prediction will also be higher, which can effectively ensure the image display effect.

[0032] In an optional embodiment, determining the target motion trajectory parameters according to the initial motion trajectory parameters and the preset motion trajectory parameters corresponding to the target scene type includes:

[0033] Determining similarity information between the initial motion trajectory parameters and the preset motion trajectory parameters;

[0034] When the similarity information meets a preset similarity threshold, determining the target motion trajectory parameters according to the preset motion trajectory parameters;

[0035] When the similarity information does not meet the preset similarity threshold, the target motion trajectory parameters are determined according to the initial motion trajectory parameters.

[0036] The above method determines the target motion trajectory parameters by comparing the initial motion trajectory parameters with the preset motion trajectory parameters to ensure that the determined target motion trajectory parameters can more accurately reflect the motion trajectory of the moving object in the next image frame.

[0037] In an optional embodiment, determining the target motion speed parameter based on the initial motion speed parameter and the preset motion speed parameter corresponding to the target scene type includes:

[0038] determining a speed adjustment parameter according to a difference between the initial motion speed parameter and the preset motion speed parameter;

[0039] The preset motion speed parameter is adjusted using the speed adjustment parameter to obtain the target motion speed parameter.

[0040] The above method determines the speed adjustment parameter by comparing the initial motion speed parameter with the preset motion speed parameter, and uses the speed adjustment parameter to adjust the preset motion speed parameter to obtain the target motion speed parameter, so that the determined target motion speed parameter can be more consistent with the actual motion speed of the moving object in the next image frame.

[0041] In an optional embodiment, determining the backlight offset parameter corresponding to the second image frame according to the target motion parameter and the preset display duration includes:

[0042] Determine the motion direction of the moving object according to the target motion trajectory parameters, and

[0043] Determining a movement distance corresponding to the moving object according to a target movement speed parameter and the preset display duration, wherein the target movement parameter includes the target movement trajectory parameter and the target movement speed parameter;

[0044] The backlight offset parameter is determined based on the movement direction and the movement distance.

[0045] The above method determines the backlight offset parameter by the motion direction determined by the target motion trajectory parameter and the motion speed determined by the target motion speed parameter, so that the target backlight data subsequently adjusted according to the backlight offset parameter is closer to the backlight data actually calculated, while improving the backlight brightness and ensuring the accuracy of image display.

[0046] In an optional embodiment, adjusting the first backlight data based on the backlight offset parameter to generate target backlight data includes:

[0047] performing an offset process on the backlight data corresponding to the target image area in the first backlight data based on the backlight offset parameter to obtain first-area backlight data, wherein the first-area backlight data is backlight data corresponding to the image area where the moving object is located in the second image frame;

[0048] Determining second-region backlight data based on backlight data corresponding to a background image region in the first backlight data, wherein the background image region is an image region other than the target image region in the first image frame, and the second-region backlight data is backlight data corresponding to an image region other than the image region where the moving object is located in the second image frame;

[0049] The target backlight data is constructed based on the first area backlight data and the second area backlight data.

[0050] The above method uses a backlight offset parameter to offset the backlight data corresponding to the target image area in the first backlight data to determine the backlight data corresponding to the area where the moving object is located in the next image frame; and uses the backlight data corresponding to the background image area in the first backlight data to determine the backlight data corresponding to other areas in the next image frame except the area where the moving object is located, thereby achieving prediction of the target backlight data, which is used to provide backlight for the display of the next image frame. In this way, since the target backlight data is predicted based on the first backlight data corresponding to the current image frame, compared to the prior art method of lighting the backlight based on the backlight data calculated from the pixel data of the next image frame, the embodiment of the present invention performs backlight lighting based on the predicted target backlight data, which can effectively shorten the time difference between the image display of the next image frame and the backlight lighting, ensuring that the backlight brightness reaches the expected brightness as much as possible, and improving the display effect.

[0051] In an optional embodiment, the method further includes:

[0052] performing a comparative analysis on the first backlight data and third backlight data, and determining an offset adjustment parameter according to the comparative analysis result, wherein the third backlight data is data for determining the backlight brightness required for displaying the first image frame;

[0053] Correcting the backlight offset parameter corresponding to the second image frame according to the offset adjustment parameter to obtain a corrected backlight offset parameter;

[0054] The adjusting the first backlight data based on the backlight offset parameter includes:

[0055] The first backlight data is adjusted based on the corrected backlight offset parameter.

[0056] The above method can also determine an offset adjustment parameter based on the deviation between the third backlight data used for the backlight display of the current image frame and the first backlight data calculated from the pixel data of the current image frame, so as to adjust and correct the backlight offset parameter corresponding to the next image frame; and use the corrected backlight offset parameter to predict the target backlight data, so that the predicted target backlight data is closer to the backlight data calculated based on the pixel data of the next image frame, thereby ensuring the actual display effect.

[0057] In an optional embodiment, the method further includes:

[0058] using backlight offset parameters corresponding to each image frame preceding the second image frame as historical backlight offset parameters;

[0059] Correcting the backlight offset parameter corresponding to the second image frame using the historical backlight offset parameter to obtain a corrected backlight offset parameter;

[0060] The adjusting the first backlight data based on the backlight offset parameter includes:

[0061] The first backlight data is adjusted based on the corrected backlight offset parameter.

[0062] The above method can also store the backlight offset parameters corresponding to each historical image frame to obtain multiple historical backlight offset parameters, and adjust and correct the backlight offset parameters corresponding to the next image frame in combination with the multiple historical backlight offset parameters; then, the corrected backlight offset parameters are used to predict the target backlight data, so that the predicted target backlight data is closer to the backlight data calculated based on the pixel data of the next image frame, thereby improving the accuracy of the image display effect.

[0063] In a second aspect, an embodiment of the present invention provides a display chip, including:

[0064] a region division module, configured to determine a target image region in a first image frame based on display data corresponding to two adjacent image frames, wherein the first image frame is the latter of the two adjacent image frames, and the target image region is a region where a moving object is located;

[0065] a parameter determination module, configured to determine a backlight offset parameter corresponding to a second image frame based on the characteristic attribute parameters corresponding to the target image area and the initial motion parameters corresponding to the moving object, wherein the second image frame is a frame subsequent to the first image frame;

[0066] A backlight adjustment module is used to adjust the first backlight data based on the backlight offset parameter to generate target backlight data, wherein the first backlight data is determined according to the pixel data corresponding to the first image frame, and the target backlight data is used to determine the backlight brightness required for displaying the second image frame.

[0067] In an optional embodiment, the region-dividing mold body is used for:

[0068] performing statistical analysis on pixel data corresponding to a third image frame and pixel data corresponding to the first image frame, and determining a current display screen type based on the statistical analysis result, wherein the third image frame is a previous image frame of the two adjacent image frames, and the display data includes the pixel data and backlight data;

[0069] When it is determined that the current display picture type is a motion picture type, the target image area is determined in the first image frame based on the first backlight data and the second backlight data, wherein the second backlight data is determined according to the pixel data corresponding to the third image frame.

[0070] In an optional embodiment, the region-dividing mold body is used for:

[0071] performing comparative analysis on each backlight data belonging to the same backlight partition in the first backlight data and the second backlight data, and selecting a first backlight partition from each backlight partition corresponding to the first image frame based on the comparative analysis result;

[0072] Based on the backlight data corresponding to the first backlight partition in the first backlight data, a second backlight partition is selected from the first backlight partitions, and an image region corresponding to the second backlight partition in the first image frame is used as the target image region.

[0073] In an optional embodiment, the parameter determination module is specifically configured to:

[0074] Determining target motion parameters corresponding to the moving object based on the characteristic attribute parameters and the initial motion parameters, wherein the initial motion parameters are calculated based on display data corresponding to the two adjacent image frames;

[0075] A backlight offset parameter corresponding to the second image frame is determined according to the target motion parameter and a preset display duration, wherein the preset display duration is used to indicate a display period corresponding to one image frame.

[0076] In an optional embodiment, the parameter determination module is specifically configured to:

[0077] Determining a target scene type corresponding to the target image area based on a magnitude relationship between the characteristic attribute parameter and a preset parameter threshold;

[0078] determining the target motion parameters according to the target scene type and the initial motion parameters;

[0079] The characteristic attribute parameters include at least one of the number of the target image areas, the shape of the moving object in the target image areas, the size of the target image areas, and backlight data corresponding to the target image areas.

[0080] In an optional embodiment, the parameter determination module is specifically configured to:

[0081] Determining target motion trajectory parameters according to initial motion trajectory parameters and preset motion trajectory parameters corresponding to the target scene type, wherein the initial motion parameters include the initial motion trajectory parameters and initial motion speed parameters, and the initial motion trajectory parameters are used to characterize the actual motion trajectory of the moving object;

[0082] Based on the initial motion speed parameter and the preset motion speed parameter corresponding to the target scene type, a target motion speed parameter is determined, wherein the initial motion speed parameter is used to characterize the actual motion speed of the moving object, and the target motion parameter includes the target motion trajectory parameter and the target motion speed parameter.

[0083] In an optional embodiment, the parameter determination module is specifically configured to:

[0084] Determining similarity information between the initial motion trajectory parameters and the preset motion trajectory parameters;

[0085] When the similarity information meets a preset similarity threshold, determining the target motion trajectory parameters according to the preset motion trajectory parameters;

[0086] When the similarity information does not meet the preset similarity threshold, the target motion trajectory parameters are determined according to the initial motion trajectory parameters.

[0087] In an optional embodiment, the parameter determination module is specifically configured to:

[0088] determining a speed adjustment parameter according to a difference between the initial motion speed parameter and the preset motion speed parameter;

[0089] The preset motion speed parameter is adjusted using the speed adjustment parameter to obtain the target motion speed parameter.

[0090] In an optional embodiment, the parameter determination module is specifically configured to:

[0091] Determine the motion direction of the moving object according to the target motion trajectory parameters, and

[0092] Determining a movement distance corresponding to the moving object according to a target movement speed parameter and the preset display duration, wherein the target movement parameter includes the target movement trajectory parameter and the target movement speed parameter;

[0093] The backlight offset parameter is determined based on the movement direction and the movement distance.

[0094] In an optional embodiment, the backlight adjustment module is specifically configured to:

[0095] performing an offset process on the backlight data corresponding to the target image area in the first backlight data based on the backlight offset parameter to obtain first-area backlight data, wherein the first-area backlight data is backlight data corresponding to the image area where the moving object is located in the second image frame;

[0096] Determining second-region backlight data based on backlight data corresponding to a background image region in the first backlight data, wherein the background image region is an image region other than the target image region in the first image frame, and the second-region backlight data is backlight data corresponding to an image region other than the image region where the moving object is located in the second image frame;

[0097] The target backlight data is constructed based on the first area backlight data and the second area backlight data.

[0098] In an optional embodiment, the display chip further includes a first parameter correction module; the first parameter correction module is configured to:

[0099] performing a comparative analysis on the first backlight data and third backlight data, and determining an offset adjustment parameter according to the comparative analysis result, wherein the third backlight data is data for determining the backlight brightness required for displaying the first image frame;

[0100] Correcting the backlight offset parameter corresponding to the second image frame according to the offset adjustment parameter to obtain a corrected backlight offset parameter;

[0101] The backlight adjustment module is further configured to adjust the first backlight data based on the corrected backlight offset parameter.

[0102] In an optional embodiment, the display chip further includes a second parameter correction module; the second parameter correction module is configured to:

[0103] using backlight offset parameters corresponding to each image frame preceding the second image frame as historical backlight offset parameters;

[0104] Correcting the backlight offset parameter corresponding to the second image frame using the historical backlight offset parameter to obtain a corrected backlight offset parameter;

[0105] The backlight adjustment module is further configured to adjust the first backlight data based on the corrected backlight offset parameter.

[0106] In a third aspect, an embodiment of the present invention provides a display device, comprising a display module, a backlight module, and the display chip according to any one of the embodiments of the second aspect, wherein:

[0107] The display chip is electrically connected to the display module and the backlight module respectively;

[0108] The display module is configured to receive pixel data corresponding to the second image frame output by the display chip, and display an image according to the pixel data;

[0109] The backlight module is configured to receive target backlight data output by the backlight chip, and provide backlight for displaying the second image frame according to the target backlight data.

[0110] For the technical effects that may be achieved by the display chip disclosed in the second aspect and the display device disclosed in the third aspect, please refer to the above description of the technical effects that may be achieved by the first aspect or various possible solutions in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0111] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0112] Figure 1 A schematic structural diagram of a display device provided in the related art;

[0113] Figure 2 A schematic structural diagram of a backlight panel and a display panel provided in the related art;

[0114] Figure 3 A schematic diagram of data conversion between a backlight module and a display module provided in the related art;

[0115] Figure 4 A schematic diagram of the structure of a backlight partition provided for related technology;

[0116] Figure 5 A schematic diagram of the workflow of a backlight data processing method provided by an embodiment of the present invention;

[0117] Figure 6 A schematic diagram of determining a target image area in a first image frame provided by an embodiment of the present invention;

[0118] Figure 7 A schematic diagram of a workflow for backlight data processing corresponding to multiple image frames provided by an embodiment of the present invention;

[0119] Figure 8 A schematic diagram of a complete workflow for displaying motion pictures provided by an embodiment of the present invention;

[0120] Figure 9 A schematic diagram of an image display effect provided by an embodiment of the present invention;

[0121] Figure 10 A schematic diagram of another image display effect provided by an embodiment of the present invention;

[0122] Figure 11 A schematic structural diagram of a display chip provided by an embodiment of the present invention;

[0123] Figure 12 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0124] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only some, not all, of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0125] It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0126] With the rapid development of image display technology, people's requirements for the display performance of display devices are also increasing. Figure 1 A schematic structural diagram of a display device is shown. Figure 1 As shown, the display device 10 is generally composed of a main processor 11, a display module 12 and a backlight module 13. The main processor 11 is electrically connected to the display module 12 and the backlight module 13 respectively.

[0127] Among them, such as Figure 1 As shown, the display module 12 generally includes a timing controller 121 and a display panel 122. The display panel 122 includes a pixel array composed of liquid crystal molecules, and data lines and scan lines connected to the pixel array ( Figure 1 (not shown), the timing controller 121 is electrically connected to the data lines and scan lines provided on the display panel 122.

[0128] The backlight module 13 generally includes a dimming controller 131 and a backlight panel 132. The backlight panel 132 is disposed opposite the display panel 122, with the display panel 122 located on the light-emitting side of the backlight panel 132. The backlight panel 132 is provided with a plurality of dimmers 1321 and light-emitting units 1322 electrically connected to each dimmer 1321. The dimming controller 131 is electrically connected to the dimmers 1321, which are electrically connected to the cathodes of the light-emitting units 1322. The anodes of the light-emitting units 1322 are electrically connected to the power supply terminal VDD.

[0129] Figure 2 A schematic diagram of the structure of a backlight panel and a display panel is shown. Figure 2 As shown, the backlight panel 132 is divided into a plurality of backlight partitions 133, each of which corresponds to an image partition 123 on the display panel 122. Each backlight partition 133 may include one or more dimmers 1321 and a plurality of light-emitting units 1322 connected to the dimmers 1321. The backlight brightness of each backlight partition 133 is independent of each other, i.e. Figure 2 Different filling levels in each backlight partition 133 represent different backlight brightnesses, and each backlight partition 133 provides corresponding backlight brightnesses for its corresponding image partition 123. This dimming method can provide the image displayed on the display panel 122 with better color contrast, and the display effect of the image frame seen by the human eye will be better.

[0130] In one implementation, referring to Figure 1 and Figure 2 The main processor 11 can process the pixel data corresponding to the display image frame (i.e., the second image frame in the embodiment of the present invention) to obtain backlight data, and send the backlight data to the dimming controller 131 via the SPI protocol, and send the pixel data to the timing controller 121. The main processor 11 can be a SoC (System on Chip) or other electronic device that can output pixel data, and the embodiment of the present invention does not impose any limitation on this.

[0131] In a specific implementation, the process of the main processor 11 generating and sending backlight data may include the following steps:

[0132] Step 1: Preprocessing of image / video signals.

[0133] The main processor 11 can obtain image / video signals from the receiving component of the display device 10, decode the obtained image / video signals to obtain pixel data in digital format, and then further process the decoded pixel data, including but not limited to color correction, brightness adjustment, and noise removal. The receiving component of the display device 10 can be a camera, a video decoder, etc.

[0134] Step 2: Generation of backlight data.

[0135] After the main processor 11 obtains the pre-processed pixel data, it can first analyze the brightness and color information of the image area corresponding to each backlight partition 133 in the image frame to be displayed based on the pre-processed pixel data; then, based on the brightness analysis results, and combined with factors such as the transmittance of the liquid crystal molecules in the display panel 122 and the luminous efficiency of the light-emitting unit 1322, the backlight brightness value required for each backlight partition 133 is calculated; finally, the calculated backlight brightness value is converted into a series of backlight data, and data compression, data encryption and other technologies are used to encode the backlight data into a format suitable for SPI transmission.

[0136] Step 3: Transmission of backlight data.

[0137] The main processor 11 will first initialize the SPI interface, that is, configure the relevant parameters of the SPI interface, including but not limited to: clock rate, number of data bits, CPOL (English: Clock Polarity, Chinese: Clock Polarity), CPHA (English: Clock Phase, Chinese: Clock Phase), etc. Then, the encoded backlight data is sent to the dimming controller 1321 through the SPI interface. Specifically, the main processor 11 generates a clock signal to control the level state of the transmission line to send the backlight data bit by bit to the dimming controller 1321. Finally, after receiving the backlight data, the dimming controller 1321 can, on the one hand, control the backlight of the backlight panel 132 according to the backlight data; on the other hand, it can send a response signal to the main processor 11 to confirm the correct receipt of the backlight data or report any errors.

[0138] Furthermore, while the display device 10 is playing a video or displaying an image, the main processor 11 can also optimize the backlighting effect. Specifically, the main processor 11 can monitor changes in image content in real time and dynamically adjust the backlight brightness to match the image display requirements. By optimizing backlight brightness distribution and reducing unnecessary energy consumption, energy savings can be achieved. For example, the backlight brightness can be reduced when displaying darker images and increased when displaying brighter images.

[0139] Further, refer to Figure 1 and Figure 2 The dimming controller 131 processes the backlight data it receives to obtain local dimming data, and sends the local dimming data to the corresponding backlight partition 133 in the backlight panel 132. The dimmer 1321 in each backlight partition 133 generates PWM (Pulse-Width Modulation) local dimming data based on the local dimming data it receives, and sends the PWM local dimming data to the light-emitting unit 1322 connected thereto to control the lighting of the light-emitting unit 1322, thereby providing corresponding backlight for the display panel 122. The dimming controller 131 can use a dimming controller chip or other electronic device capable of dimmer control, and the embodiment of the present invention does not impose any restrictions on this.

[0140] The timing controller 121 can process the pixel data it receives and send the processed pixel data to the display panel 122 to drive the display panel 122 to display the image frame to be displayed. The timing controller 320 can be a device with a drive control function, such as a TCON (English: Timing Controller, Chinese: Timing Controller) chip, a screen drive circuit, etc.

[0141] In a specific implementation, the pixel data and backlight data corresponding to an image frame are essentially data arrays with row and column position information. Figure 3 A schematic diagram of data conversion between a backlight module and a display module is shown. Figure 3 As shown, taking a display device 10 with a 4K resolution as an example, the display panel 122 is arrayed with 3840×2160 pixels, i.e., 3840 pixels are arranged along the row direction and 2160 pixels are arranged along the column direction. Correspondingly, the pixel data received by the timing controller 121 is a 3840×2160 data array, i.e., each row in the data array includes data values ​​corresponding to 3840 pixels, and each column in the data array includes data values ​​corresponding to 2160 pixels. The timing controller 121 controls the 3840×2160 pixels on the display panel 122 based on the 3840×2160 pixel data.

[0142] like Figure 3As shown, 72×42 backlight partitions 133 are arranged on the backlight panel 132, that is, 72 backlight partitions are arranged along the row direction and 42 backlight partitions are arranged along the column direction. Correspondingly, the main processor 11 will convert the pixel data of 3840×2160 specifications into backlight data of 72×42 specifications. In the backlight data, each row includes backlight values ​​corresponding to 72 backlight partitions 133, and each column includes backlight values ​​corresponding to 42 backlight partitions 133; then, the obtained 72×42 backlight data is sent to the dimming controller 131, and the dimming controller 131 controls the backlight brightness of the 72×42 backlight partitions 133 according to the 72×42 backlight data.

[0143] Figure 4 A schematic diagram of the structure of backlight partition is shown. Figure 4 As shown, the backlight panel 132 is divided into m1×n1 backlight partitions 133, that is, m1 backlight partitions are arranged along the row direction and n1 backlight partitions are arranged along the column direction. One backlight partition 133 corresponds to one backlight data. Therefore, for one image frame, the determined backlight data also corresponds to a data array of m1×n1 specifications.

[0144] As can be seen from the above description, the backlight data is calculated based on the pixel data corresponding to the image frame, which naturally causes a certain delay in the backlight data relative to the display data, resulting in the backlight lighting speed being slightly later than the image display speed when the image is displayed. In actual applications, the phenomenon that the backlight lighting of the backlight module cannot be synchronized with the image display of the display module will cause the actual backlight brightness provided by the backlight module for the display screen to fail to meet expectations. When the display device plays dynamic images, especially when playing high-speed continuous motion images, for example, when playing scenes such as car races and high-speed football shots, the backlight lighting will be continuously later than the display of the screen image, resulting in the continuous poor brightness and contrast of the image, seriously affecting the display effect of the display device.

[0145] In order to improve the display effect, the prior art generally adopts a method of additionally increasing the backlight brightness of the backlight module to achieve an improvement in the display brightness of the display module. However, this improvement method increases the power consumption of the display device, which is not conducive to achieving the energy-saving effect of the display device.

[0146] Based on this, an embodiment of the present invention provides a backlight data processing method, a display chip, and a display device, which are used to reduce the delay between backlight lighting and image display, enhance the display brightness and contrast of motion pictures, and improve the picture display effect of the display device without increasing the power consumption of the display device.

[0147] The purpose, features, and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only intended to illustrate and explain the present invention and are not intended to limit the present invention. In addition, the embodiments of the present invention and the features therein may be combined with each other unless there is a conflict.

[0148] The following is a detailed description of the backlight data processing method provided by the embodiment of the present invention with reference to the accompanying drawings:

[0149] Figure 5 The flowchart of a backlight data processing method is shown. The backlight data processing method provided by the embodiment of the present invention can be applied to display chips, such as SoC, TCON, etc. Figure 5 As shown, the method may specifically include the following steps:

[0150] Step S501 : determining a target image area in a first image frame based on display data corresponding to two adjacent image frames, wherein the first image frame is the latter of the two adjacent image frames, and the target image area is the area where the moving object is located.

[0151] It should be noted that, in embodiments of the present invention, the order of different image frames can be distinguished according to chronological order. Specifically, the latter of two adjacent image frames is the image frame displayed later, and the former of two adjacent image frames is the image frame displayed first. To facilitate understanding, the following simple example: In a subsequent embodiment, multiple image frames appear, namely, the first image frame, the second image frame, and the third image frame. In this case, the display order of the three image frames, according to chronological order, is: the third image frame, the first image frame, and the second image frame.

[0152] In some embodiments, the display data corresponding to an image frame may include pixel data and backlight data calculated from the pixel data.

[0153] In a specific implementation, the display chip performs statistical comparison on the display data corresponding to any two adjacent image frames to determine the target image area where the moving object is located in the first image frame. In the process of executing step S501, the display chip can specifically implement it in at least the following two ways:

[0154] Method 1:

[0155] In step S501-1, the display chip may perform statistical analysis on the pixel data corresponding to the third image frame and the pixel data corresponding to the first image frame, and determine the current display screen type based on the statistical analysis results, wherein the third image frame is the previous image frame between the two adjacent image frames, and the display screen type may include a motion screen type and other screen types.

[0156] In a specific implementation, the display chip can perform statistical analysis on the pixel data corresponding to two adjacent image frames to determine similarity information between the pixel data of the two adjacent image frames, and identify the display image type based on the similarity information and a preset judgment threshold. Specifically, if it is determined that the similarity information meets the preset judgment threshold, the current display image type can be determined to be a motion image type; if it is determined that the similarity information does not meet the preset judgment threshold, the current display image type can be determined to be another image type.

[0157] For example, assuming that the preset judgment threshold is 80%, if the similarity information of the pixel data of two adjacent image frames determined by the display chip is 84%, since the similarity information is greater than the preset judgment threshold, that is, 84%>80%, at this time, it means that the degree of picture change between the two image frames is small, and it is determined to be a continuous motion picture type; if the similarity information of the pixel data of two adjacent image frames determined by the display chip is 50%, since the similarity information is less than the preset judgment threshold, that is, 50%<80%, at this time, it means that the degree of picture change between the two image frames is large, and it is determined to be other discontinuous picture types.

[0158] Furthermore, when the display chip determines that the current display screen type is other screen types, the display device will directly light up the backlight according to the backlight data calculated from the pixel data of the second image frame (ie, the image frame to be displayed) without executing subsequent workflows.

[0159] In step S501-2, when it is determined that the current display image type is a motion image type, the display chip can determine the target image area in the first image frame based on the first backlight data and the second backlight data, wherein the second backlight data is determined according to the pixel data corresponding to the third image frame.

[0160] In some embodiments, the display chip can compare and analyze the various backlight data belonging to the same backlight partition in the first backlight data and the second backlight data, and select the first backlight partition from the various backlight partitions corresponding to the first image frame based on the comparison and analysis results; then, based on the backlight data corresponding to the first backlight partition in the first backlight data, select the second backlight partition in the first backlight partition, and use the image area corresponding to the second backlight partition in the first image frame as the target image area.

[0161] In a specific implementation, taking any one of the multiple backlight partitions as an example, the display chip can compare the backlight data corresponding to the backlight partition in the first image frame with the backlight data corresponding to the backlight partition in the third image frame. When the difference between the two is large, it means that the backlight brightness corresponding to the backlight partition has changed significantly between two consecutive image frames, indicating that motion has occurred in the image area corresponding to the backlight partition, and the backlight partition is then designated as the first backlight partition. When the difference between the two is small, it means that the backlight brightness corresponding to the backlight partition has changed slightly between two consecutive image frames, indicating that the image area corresponding to the backlight partition is a background area and no motion has occurred.

[0162] In some embodiments, the display chip may determine the first backlight subarea in the following manner:

[0163] For any backlight partition, the display chip can calculate the data difference between the backlight data corresponding to the backlight partition in the first backlight data and the backlight data corresponding to the backlight partition in the second backlight data; after obtaining the data difference corresponding to each backlight partition, the display chip can respectively compare the size relationship between each data difference and the preset threshold. When it is identified that there is a data difference greater than or equal to the preset threshold, the backlight partition corresponding to the data difference greater than or equal to the preset threshold is determined as the first backlight partition, and the backlight partition corresponding to the data difference less than the preset threshold will not be determined as the first backlight partition.

[0164] Furthermore, after determining multiple first backlight partitions, we can also take advantage of the fact that the backlight brightness corresponding to the moving object is usually higher. In the backlight data corresponding to the first backlight partition, the backlight partition to which the backlight data corresponding to the higher brightness value belongs is selected as the second backlight partition, and the image area corresponding to the second backlight partition is used as the target image area, so as to further accurately define the area where the moving object is located.

[0165] To make it easier to understand the above process, let's take a simple example:

[0166] Figure 6 FIG. 1 shows a schematic diagram of determining a target image area in a first image frame. Figure 6 As shown in (a) of FIG, the highlight areas in the third image frame are located at backlight partitions 2_2, 2_3, 3_2, and 3_3, while the highlight areas in the first image frame are located at backlight partitions 3_3, 3_4, 4_3, and 4_4. Therefore, by comparing the brightness of the backlight partitions corresponding to the third image frame with the brightness of the backlight partitions corresponding to the first image frame, it can be seen that Figure 6In (b), backlight partition 2_2, backlight partition 2_3, backlight partition 3_2, backlight partition 3_3, backlight partition 3_4, backlight partition 4_3 and backlight partition 4_4 in the backlight partitions corresponding to the first image frame are all taken as the first backlight partition. Figure 6 In step (c), among the seven first backlight subareas determined in step (b), select backlight subareas with higher brightness values, namely, backlight subareas 3_3, 3_4, 4_3, and 4_4, and use them as second backlight subareas. Finally, the image areas corresponding to the four second backlight subareas are used as the target image areas, thereby determining the target image area.

[0167] In some embodiments, the display chip may further determine a background image area in the first image frame, wherein the background image area is other image areas in the first image frame except the target image area.

[0168] Therefore, by analyzing the pixel data and backlight data corresponding to two adjacent image frames, the area in the first image frame with higher brightness and relatively moving images can be determined as the target image area, and the area with relatively stable brightness and relatively still images can be determined as the background image area. This not only accurately determines the image area where the moving object is located, achieving precise division of the image area where the moving object is located, but also facilitates subsequent analysis of the target image area and the moving object, improving the accuracy of subsequent backlight data prediction.

[0169] Method 2:

[0170] In some embodiments, the display chip can process the display data corresponding to the first image frame based on a deep learning model to determine the target image area and the background image area in the first image frame, wherein the target image area is the area where the moving object is located, and the deep learning model is a model trained with display data corresponding to multiple continuously moving image frames.

[0171] It should be noted that the above two target image area division methods are merely two feasible examples. In practical applications, other feasible implementation methods may also be adopted, and the embodiment of the present invention does not impose any limitation on this.

[0172] Step S502 : determining backlight offset parameters corresponding to a second image frame according to characteristic attribute parameters corresponding to the target image region and initial motion parameters corresponding to the moving object, wherein the second image frame is a frame subsequent to the first image frame.

[0173] In some embodiments, the initial motion parameters corresponding to the moving object can be calculated based on the display data corresponding to two adjacent image frames. The initial motion parameters may include initial motion trajectory parameters and initial motion speed parameters, wherein the initial motion trajectory parameters are used to characterize the actual motion trajectory of the moving object, and the initial motion speed parameters are used to characterize the actual motion speed of the moving object.

[0174] During the execution of step S502, the display chip may specifically determine the backlight offset parameter corresponding to the second image frame in the following manner:

[0175] Step S502-1: Determine target motion parameters corresponding to the moving object based on the characteristic attribute parameters and the initial motion parameters.

[0176] In an embodiment of the present invention, the characteristic attribute parameters corresponding to the target image area include at least one or more of the number of target image areas, the shape of the moving object in the target image area, the size of the target image area, and the backlight data corresponding to the target image area.

[0177] In some embodiments, the display chip can determine the target motion parameters based on the characteristic attribute parameters and the initial motion parameters in the following manner: the display chip can determine the target scene type corresponding to the target image area based on the size relationship between the characteristic attribute parameters and the preset parameter threshold; and determine the target motion parameters based on the target scene type and the initial motion parameters.

[0178] The scene types corresponding to the target image area may include, but are not limited to, fast-motion scenes, slow-motion scenes, single-moving-target scenes, multiple-moving-target scenes, sports scenes, lifestyle scenes, and natural sports scenes. Specifically, sports scenes may include ball games, water sports, and track and field; lifestyle scenes may include transportation, indoor sports, and outdoor sports; and natural sports scenes may include falling snowflakes, meteors, and falling leaves.

[0179] In a specific implementation, the number of preset parameter thresholds may be the same as or different from the number of characteristic attribute parameters. For example, the display chip may set a corresponding preset parameter threshold 1 for the number of target image areas, a corresponding preset parameter threshold 2 for the size of the target image areas, and a corresponding preset parameter threshold 3 for the backlight data corresponding to the target image areas.

[0180] In this way, when the display chip recognizes that the shape of the moving object in the target image area is circular, and recognizes that the quantity parameter in the characteristic attribute parameter meets the preset parameter threshold 1, and the size parameter meets the preset parameter threshold 2, and the backlight brightness value determined according to the backlight data meets the preset parameter threshold 3, it can be determined that the number of moving objects in the first image frame is small, and the volume of the moving object is small, and the brightness of the moving object is high, and the shape of the moving object is circular, then it is determined to be a ball sports scene.

[0181] When the display chip recognizes that the shape of the moving object in the target image area is a rectangle, and recognizes that the quantity parameter in the characteristic attribute parameter meets the preset parameter threshold 1, and the size parameter does not meet the preset parameter threshold 2, and the backlight brightness value determined according to the backlight data meets the preset parameter threshold 3, it can be determined that the number of moving objects in the first image frame is small, the volume of the moving object is large, the brightness of the moving object is high, and the shape of the moving object is a rectangle, then it is determined to be a vehicle transportation scene.

[0182] Of course, it should be understood that the above examples are merely illustrative. In actual applications, the number of parameters referenced by the display chip when determining the scene type can be flexibly set and selected, and the embodiments of the present invention do not impose any restrictions on this.

[0183] In some embodiments, when determining the target scene type corresponding to the target image area, the display chip may determine the scene type based on the consideration of the characteristic attribute parameters and the initial motion speed parameters of the moving object.

[0184] Specifically, the display chip can determine the speed based on the initial motion speed parameter and a preset speed threshold, thereby assisting in determining the scene type based on the speed of the moving objects. For example, if the display chip determines that there are a large number of moving objects in the first image frame, the moving objects are small in size, have high brightness, and are moving at a high speed, then the scene can be determined to be a scene of a meteor passing by.

[0185] For example, when the display chip determines that there are a large number of moving objects in the first image frame, the size of the moving objects is small, the brightness of the moving objects is high, and the speed of the moving objects is slow, it can be determined as a moving scene of falling snowflakes or petals.

[0186] In some embodiments, after the display chip determines the target scene type, it determines the target motion parameters based on the target scene type and the initial motion parameters. Since the target motion parameters include target motion trajectory parameters and target motion speed parameters, the process of determining the target motion parameters can be divided into two parts: one part is the determination of the target motion trajectory parameters, and the other part is the determination of the target motion speed parameters. The specific implementation method is as follows:

[0187] In some embodiments, the display chip can determine the target motion trajectory parameters based on the initial motion trajectory parameters and preset motion trajectory parameters corresponding to the target scene type. Specifically, the display chip can first determine similarity information between the initial motion trajectory parameters and the preset motion trajectory parameters; and when the similarity information meets a preset similarity threshold, determine the target motion trajectory parameters based on the preset motion trajectory parameters; when the similarity information does not meet the preset similarity threshold, determine the target motion trajectory parameters based on the initial motion trajectory parameters.

[0188] In a specific implementation, different scene types are provided with respective corresponding preset motion trajectory parameters and respective corresponding preset motion speed parameters. The display chip can compare the preset motion trajectory parameters corresponding to the target scene type with the initial motion trajectory parameters of the moving object to determine the similarity information between the two; when the similarity information is high (i.e., it meets the preset similarity threshold), it indicates that the actual motion trajectory of the moving object matches the motion trajectory curve represented by the preset motion trajectory parameters, and the preset motion trajectory parameters can be used as the target motion trajectory parameters; when the similarity information is low (i.e., it does not meet the preset similarity threshold), it indicates that the actual motion trajectory of the moving object does not match the preset motion trajectory curve in the current scene, and the initial motion trajectory parameters are used as the target motion trajectory parameters, so that the moving object in the second image frame can continue to move according to the motion trajectory of the first two image frames.

[0189] Therefore, in the above embodiment, the target motion trajectory parameters are determined by comparing the similarity between the initial motion trajectory parameters and the preset motion trajectory parameters, so as to ensure that the determined target motion trajectory parameters can more accurately reflect the motion trajectory of the moving object in the next image frame.

[0190] In some embodiments, the display chip may determine the target motion speed parameter based on the initial motion speed parameter and a preset motion speed parameter corresponding to the target scene type. Specifically, the display chip may determine a speed adjustment parameter based on the difference between the initial motion speed parameter and the preset motion speed parameter; and use the speed adjustment parameter to adjust the preset motion speed parameter to obtain the target motion speed parameter.

[0191] In a specific implementation, the display chip can determine the speed adjustment parameter based on the difference between the initial motion speed parameter and the preset motion speed parameter, as well as the size relationship of the preset difference threshold, and use the speed adjustment parameter to perform a weighted operation on the preset motion speed parameter to obtain the target motion speed parameter.

[0192] Specifically, the display chip can compare the initial motion speed parameter of the moving object and the preset motion speed parameter corresponding to the target scene type to determine the difference between the two; when the difference between the two meets the preset difference threshold, it means that the actual motion speed of the moving object is consistent with the preset motion speed of the target scene type, and the speed adjustment parameter can be determined to be 0. At this time, the determined target motion speed parameter is equal to the preset motion speed parameter.

[0193] When the difference between the two does not meet the preset difference threshold and the difference is a negative value, it means that the actual movement speed of the moving object is less than the preset movement speed of the target scene type. Then, the speed adjustment parameter can be determined to be a1, and a1<0. The preset movement speed parameter is adjusted down using the speed adjustment parameter a1 to obtain the target movement speed parameter.

[0194] When the difference between the two does not meet the preset difference threshold and the difference is a positive value, it means that the actual movement speed of the moving object is greater than the preset movement speed of the target scene type. Then, the speed adjustment parameter can be determined to be a2, and a2>0, and the preset movement speed parameter is adjusted using the speed adjustment parameter a2 to obtain the target movement speed parameter.

[0195] Therefore, in the above embodiment, by comparing the initial motion speed parameter and the preset motion speed parameter, the speed adjustment parameter is determined, and the preset motion speed parameter is adjusted using the speed adjustment parameter to obtain the target motion speed parameter, so that the determined target motion speed parameter can be more in line with the actual motion speed of the moving object in the next image frame.

[0196] The target motion parameters determined by the above embodiment can accurately feedback information such as the motion direction and motion speed of the moving object in the next image frame. Therefore, when the backlight offset parameters determined by the target motion parameters are subsequently used to predict the backlight data of the next image frame, the accuracy of the obtained target backlight data will also be higher, and the subsequent display effect will be better.

[0197] In step S502-2, the display chip determines a backlight offset parameter corresponding to the second image frame according to the target motion parameter and a preset display duration, wherein the preset display duration is used to indicate a display period corresponding to one image frame.

[0198] In a specific implementation, the process of determining the backlight offset parameters by the display chip can be implemented in the following manner:

[0199] The display chip can determine the motion direction corresponding to the moving object based on the target motion trajectory parameters, and determine the motion distance corresponding to the moving object based on the target motion speed parameters and the preset display duration; and determine the backlight offset parameters based on the motion direction and motion distance.

[0200] In a specific implementation, the display chip will determine the movement direction of the moving object in the next image frame (i.e., the second image frame) based on the target motion trajectory parameters of the moving object, and determine the movement distance of the moving object in the next image frame based on the target motion speed parameters of the moving object and the preset display duration. According to the movement direction and movement distance, and combined with the correspondence between the specifications of the backlight partition and the pixel specifications included in the image frame, the backlight data of the backlight partition corresponding to the target image area and the backlight offset parameters in the next image frame can be determined.

[0201] For example, assuming that the backlight partition corresponding to the image area where the moving object is located in the current image frame is backlight partition 2_2, and the movement direction of the moving object determined by the display chip is set to the lower right direction, and the determined movement distance is 5 pixel units, then the image area where the moving object is located in the next image frame needs to be shifted downward (i.e., along the column arrangement direction) by 3 pixel units and then shifted rightward (i.e., along the row arrangement direction) by 4 pixel units based on the target image area of ​​the current image frame. Then, when switching to the backlight partition side, the backlight partition corresponding to the image area of ​​the moving object in the next image frame is backlight partition 3_3, and the determined backlight offset parameters can be shifted downward by 1 backlight partition and then rightward by 1 backlight partition.

[0202] For example, suppose the image area containing a moving object in the current image frame corresponds to backlight partition 2_2. The display chip determines the moving object's direction of motion as rightward, with a distance of 10 pixels. This means that the image area containing the moving object in the next image frame needs to be shifted 10 pixels to the right, relative to the target image area in the current frame. Switching to the backlight partition side, the backlight partition corresponding to the image area containing the moving object in the next image frame needs to be shifted rightward by two backlight partitions relative to backlight partition 2_2, resulting in a backlight offset parameter of two backlight partitions to the right.

[0203] After the display chip determines the backlight offset parameter, it uses the backlight offset parameter to process the first backlight data to estimate the backlight data corresponding to the next image frame (i.e., the second image frame), as follows:

[0204] Step S503 : adjusting the first backlight data based on the backlight offset parameter to generate target backlight data, wherein the first backlight data is determined according to the pixel data corresponding to the first image frame, and the target backlight data is used to determine the backlight brightness required for displaying the second image frame.

[0205] In some embodiments, the display chip can determine the target backlight data in the following manner, which may specifically include the following steps:

[0206] In step S503-1, the display chip may perform an offset process on the backlight data corresponding to the target image area in the first backlight data based on the backlight offset parameter to obtain first-area backlight data, wherein the first-area backlight data is the backlight data corresponding to the image area where the moving object is located in the second image frame.

[0207] In step S503-2, the display chip may determine second-area backlight data based on the backlight data corresponding to the background image area in the first backlight data, wherein the second-area backlight data is backlight data corresponding to other image areas in the second image frame except the image area where the moving object is located.

[0208] In step S503 - 3 , the display chip may construct target backlight data based on the first region backlight data and the second region backlight data.

[0209] In a specific implementation, the display chip can offset the backlight data of the backlight subarea corresponding to the target image area in the first image frame according to the backlight offset parameter to obtain the backlight data of the first area. Based on the backlight data corresponding to the background image area, the display chip determines the backlight data of the backlight subarea corresponding to the image subarea at the same position as the target image area in the second image frame, as well as the backlight data corresponding to image areas at other positions in the second image frame, to obtain the backlight data of the second area. The backlight data of the first area and the backlight data of the second area are sequentially combined to obtain the target backlight data.

[0210] To facilitate understanding, let's take a simple example: assuming that in the first image frame, the backlight partition corresponding to the target image area is backlight partition 2_2, and its backlight data is b1, and the backlight data of other backlight partitions are all b2; in the second image frame, the backlight partition corresponding to the moving object becomes backlight partition 2_3, then in the target backlight data corresponding to the second image frame, the backlight data corresponding to backlight partition 2_3 is b1, and the backlight data corresponding to backlight partition 2_2 becomes b2, and the backlight data corresponding to other backlight partitions remain b2.

[0211] After the display chip obtains the target backlight data, it sends the target backlight data to the subsequent dimming controller; the dimming controller can control the backlight brightness of each backlight partition on the backlight panel according to the target backlight data. Since the target backlight data is obtained by predicting the first backlight data corresponding to the first image frame using the backlight offset parameter, the generation time of the target backlight data will be earlier than the generation time of the backlight data calculated based on the pixel data corresponding to the second image frame. In this way, during the backlight control process, compared with the method of lighting the backlight based on the backlight data calculated based on the pixel data of the next image frame in the prior art, the backlight is lit based on the predicted target backlight data in the embodiment of the present invention. There is no need to wait for the backlight data calculated based on the pixel data corresponding to the second image frame. Instead, the backlight of the second image frame is lit based on the predicted target backlight data, thereby reducing the time delay between the image display of the second image frame and the backlight lighting, so that the backlight brightness provided for the image display of the second image frame is closer to the expected brightness, and the advance offset of the backlight body can make the screen image and the backlight image further overlap when playing continuous motion images, reduce the image dislocation caused by the time difference between the screen display and the backlight display, further improve the brightness and contrast of the displayed image, improve the display effect, and optimize the display performance.

[0212] Furthermore, in an embodiment of the present invention, after the display chip completes the prediction of the target backlight data corresponding to an image frame, it can also perform statistical analysis using the predicted target backlight data and the backlight data actually calculated based on the pixel data of the image frame to analyze the difference between the two. The analysis result is used to correct the backlight offset parameters corresponding to the next image frame to continuously optimize the display effect, as follows:

[0213] In some embodiments, the display chip can also perform a comparative analysis on the first backlight data and the third backlight data, and determine an offset adjustment parameter based on the comparative analysis results; then, based on the offset adjustment parameter, the backlight offset parameter corresponding to the second image frame is corrected to obtain a corrected backlight offset parameter; finally, based on the corrected backlight offset parameter, the first backlight data is adjusted to obtain target backlight data for controlling the backlight display of the second image frame, wherein the third backlight data is data for determining the backlight brightness required for displaying the first image frame.

[0214] In a specific implementation, one image frame corresponds to two sets of backlight data. For example, for the first image frame, one set is the backlight data calculated from the pixel data corresponding to the first image frame, namely the first backlight data. The other set is the backlight data estimated based on the backlight data corresponding to the two frames preceding the first image frame, namely the third backlight data, used for actual backlight display control of the first image frame. The display chip performs a comparative statistical analysis on the third backlight data and the first backlight data to determine the difference between the two, and then determines an offset adjustment parameter based on this difference. This offset adjustment parameter is then used to calibrate the backlight offset parameter corresponding to the second image frame, ensuring that the target backlight data corresponding to the second image frame is more consistent with the actual backlight data calculated based on its own pixel data, thereby optimizing the display effect.

[0215] Figure 7 FIG. 1 shows a schematic diagram of a workflow for backlight data processing corresponding to multiple image frames. Figure 7 As shown, a continuous motion picture includes multiple image frames, namely F1, F2, F3, F4, F5, etc. In a specific implementation, at the initial moment, the display chip estimates the display backlight data of F3 based on the calculated backlight data of F1 and F2, and uses this display backlight data to provide backlight for the image display of F3. Then, the display chip determines the offset adjustment parameters of F4 based on the display backlight data of F3 and the calculated backlight data of F3, and determines the backlight offset parameters of F4 based on the calculated backlight data of F2 and F3. The display chip then uses the offset adjustment parameters of F4 to correct the backlight offset parameters of F4, and uses the corrected backlight offset parameters to estimate the display backlight data of F4, and then uses this backlight data to provide backlight for the image display of F4. This process continues in this manner until the display chip detects a significant degree of change between two consecutive image frames, determines that the image is discontinuous, and terminates the algorithm.

[0216] An offset adjustment parameter is determined based on the deviation between the third backlight data used for the backlight display of the current image frame and the first backlight data calculated based on the pixel data of the current image frame, so as to adjust and correct the backlight offset parameter corresponding to the next image frame; and the corrected backlight offset parameter is used to predict the target backlight data, so that the predicted target backlight data is closer to the backlight data calculated based on the pixel data of the next image frame, thereby ensuring the actual display effect.

[0217] Furthermore, the display chip can also store the backlight offset parameters corresponding to each historical image frame, and use the stored historical backlight offset parameters to correct the backlight offset parameters. The specific implementation method is as follows:

[0218] In some embodiments, the display chip can use the backlight offset parameters corresponding to each image frame located before the second image frame as historical backlight offset parameters; and use the historical backlight offset parameters to correct the backlight offset parameters corresponding to the second image frame to obtain corrected backlight offset parameters; based on the corrected backlight offset parameters, adjust the first backlight data to obtain target backlight data for controlling the backlight display of the second image frame.

[0219] In a specific implementation, the display chip can analyze the motion patterns of the moving object based on multiple historical backlight offset parameters, and correct and calibrate the subsequent backlight offset parameters based on the analysis results, and then use the corrected backlight offset parameters to predict the target backlight data, so that the predicted target backlight data is closer to the backlight data calculated based on the pixel data of the next image frame, thereby improving the accuracy of the image display effect.

[0220] In some embodiments, the display chip can also calibrate the backlight offset parameters by combining multiple factors, such as stored historical backlight offset parameters and offset adjustment parameters determined based on comparative analysis of backlight data. In practical applications, this can be flexibly configured based on actual business needs, and the present invention does not impose any restrictions on this.

[0221] Figure 8 A schematic diagram of the complete workflow of a motion picture display is shown. Figure 8 As shown, it may include the following steps:

[0222] In step S801 , the display chip determines a motion picture and divides a target image area based on display data corresponding to two adjacent image frames.

[0223] In step S802 , for the target image area, the display chip evaluates target motion parameters according to characteristic attribute parameters corresponding to the target image area and initial motion parameters corresponding to the moving object in the target image area.

[0224] In step S803 , the display chip determines a backlight offset parameter corresponding to the next image frame according to the target motion parameter, the offset adjustment parameter, and the like.

[0225] In step S804 , the display chip performs an offset process on the backlight data corresponding to the current image frame using the backlight offset parameters to estimate target backlight data corresponding to the next image frame.

[0226] In step S805 , the display chip sends the target backlight data to the dimming controller, and sends the pixel data corresponding to the next image frame to the timing controller.

[0227] In step S806 , the dimming controller performs backlight display of the next image frame according to the target backlight data.

[0228] In step S807 , the timing controller displays the next image frame according to the pixel data.

[0229] Step S808: The display chip confirms whether the actual display effect meets the preset requirements. If so, step S809 is executed; otherwise, step S803 is executed.

[0230] Step S809: The display chip stores the currently used backlight offset parameters.

[0231] In the backlight data processing method provided by the embodiment of the present invention, the backlight highlight area where the moving object is located can be close to the actual display position of the moving object on the screen, reducing the phase difference between the pixel data and the backlight data in the moving picture, thereby achieving the effect of improving the brightness and contrast of the moving picture. For ease of understanding, the following is a simple example:

[0232] Figure 9 FIG. 1 shows a schematic diagram of an image display effect after being processed using the backlight data processing method provided by an embodiment of the present invention. Figure 9 As shown in (a) to (d), the moving object is a vertical bright bar. As the moving picture is displayed, the vertical bright bar will move from left to right. It is set that the vertical bright bar moves c1 pixels per frame. Correspondingly, the backlight area corresponding to the moving object is also a vertical strip area. The vertical strip area is the backlight highlight area, and during the backlight lighting process, the vertical strip area also moves from left to right, moving d1 backlight partitions per frame.

[0233] In this way, with Figure 9 From the changes in (a) to (d), it can be seen that the vertical strip-shaped backlight highlight area in the backlight area will shift as the moving object in the display screen moves, and as the backlight highlight area shifts, the phase difference between the display area of ​​the moving object on the screen and the backlight highlight area gradually decreases, and the display brightness and contrast will be improved accordingly.

[0234] Of course, if the display chip does not process the backlight data according to the method provided by the embodiment of the present invention, the backlight data will maintain its original position without shifting, and appear as follows: Figure 9 The phenomenon shown in (a) above will cause a large phase difference between the backlight lighting area and the screen display area, resulting in a darker brightness of the final image, affecting the display effect.

[0235] Figure 10 Another schematic diagram of the image display effect is shown. Figure 10As shown in the following figures, (a) is a schematic diagram showing the display of a moving object moving to the lower right without backlight data shifting; (b) is a schematic diagram showing the display of a moving object moving to the lower right with backlight data shifting accordingly; (c) is a schematic diagram showing the display of a moving object moving to the lower left without backlight data shifting accordingly; and (d) is a schematic diagram showing the display of a moving object moving to the lower left with backlight data shifting accordingly. Comparing (a) and (b), and (c) and (d), we can see that backlight shifting can effectively reduce the phase difference between the screen display and the backlight-lit area in motion images, thereby improving the brightness and contrast of motion images.

[0236] Based on the same concept, an embodiment of the present invention further provides a display chip. Since the display chip is the chip in the backlight data processing method provided in the embodiment of the present invention, and the principle of solving the problem by the display chip is similar to that of the backlight data processing method, the implementation of the display chip can refer to the implementation of the backlight data processing method, and the repeated parts will not be repeated.

[0237] Figure 11 FIG. 1 shows a schematic diagram of the structure of a display chip. Figure 11 As shown, the display chip 200 may include:

[0238] A region division module 210 is configured to determine a target image region in a first image frame based on display data corresponding to two adjacent image frames, wherein the first image frame is the latter of the two adjacent image frames, and the target image region is a region where a moving object is located;

[0239] a parameter determination module 220 for determining a backlight offset parameter corresponding to a second image frame based on characteristic attribute parameters corresponding to the target image region and initial motion parameters corresponding to the moving object, wherein the second image frame is a frame subsequent to the first image frame;

[0240] The backlight adjustment module 230 is used to adjust the first backlight data based on the backlight offset parameter to generate target backlight data, wherein the first backlight data is determined according to the pixel data corresponding to the first image frame, and the target backlight data is used to determine the backlight brightness required for displaying the second image frame.

[0241] In some embodiments, the region division module 210 is specifically used to:

[0242] performing statistical analysis on pixel data corresponding to a third image frame and pixel data corresponding to the first image frame, and determining a current display screen type based on the statistical analysis results, wherein the third image frame is a previous image frame between two adjacent image frames, and the display data includes pixel data and backlight data;

[0243] When it is determined that the current display picture type is a motion picture type, a target image area is determined in the first image frame based on the first backlight data and the second backlight data, wherein the second backlight data is determined according to pixel data corresponding to the third image frame.

[0244] In some embodiments, the region division module 210 is specifically used to:

[0245] performing comparative analysis on each backlight data belonging to the same backlight partition in the first backlight data and the second backlight data, and selecting the first backlight partition from among the backlight partitions corresponding to the first image frame according to the comparative analysis result;

[0246] Based on the backlight data corresponding to the first backlight subarea in the first backlight data, a second backlight subarea is selected from the first backlight subarea, and an image area corresponding to the second backlight subarea in the first image frame is used as a target image area.

[0247] In some embodiments, the parameter determination module 220 is specifically configured to:

[0248] Determining target motion parameters corresponding to the moving object based on the characteristic attribute parameters and the initial motion parameters, wherein the initial motion parameters are calculated based on display data corresponding to two adjacent image frames;

[0249] A backlight offset parameter corresponding to the second image frame is determined according to the target motion parameter and a preset display duration, wherein the preset display duration is used to indicate a display period corresponding to one image frame.

[0250] In some embodiments, the parameter determination module 220 is specifically configured to:

[0251] Determine the target scene type corresponding to the target image area based on the size relationship between the characteristic attribute parameter and the preset parameter threshold;

[0252] Determine target motion parameters according to the target scene type and initial motion parameters;

[0253] The characteristic attribute parameters include at least one of the number of target image areas, the shape of the moving object in the target image area, the size of the target image area, and backlight data corresponding to the target image area.

[0254] In some embodiments, the parameter determination module 220 is specifically configured to:

[0255] Determining target motion trajectory parameters according to the initial motion trajectory parameters and preset motion trajectory parameters corresponding to the target scene type, wherein the initial motion parameters include initial motion trajectory parameters and initial motion speed parameters, and the initial motion trajectory parameters are used to characterize the actual motion trajectory of the moving object;

[0256] The target motion speed parameters are determined based on the initial motion speed parameters and the preset motion speed parameters corresponding to the target scene type, wherein the initial motion speed parameters are used to characterize the actual motion speed of the moving object, and the target motion parameters include target motion trajectory parameters and target motion speed parameters.

[0257] In some embodiments, the parameter determination module 220 is specifically configured to:

[0258] Determining similarity information between the initial motion trajectory parameters and the preset motion trajectory parameters;

[0259] When the similarity information meets the preset similarity threshold, the target motion trajectory parameters are determined according to the preset motion trajectory parameters;

[0260] When the similarity information does not meet the preset similarity threshold, the target motion trajectory parameters are determined according to the initial motion trajectory parameters.

[0261] In some embodiments, the parameter determination module 220 is specifically configured to:

[0262] Determining a speed adjustment parameter according to a difference between an initial motion speed parameter and a preset motion speed parameter;

[0263] The speed adjustment parameter is used to adjust the preset motion speed parameter to obtain the target motion speed parameter.

[0264] In some embodiments, the parameter determination module 220 is specifically configured to:

[0265] According to the target motion trajectory parameters, determine the motion direction corresponding to the moving object, and

[0266] Determine the movement distance corresponding to the moving object according to the target movement speed parameter and the preset display duration, wherein the target movement parameter includes the target movement trajectory parameter and the target movement speed parameter;

[0267] Based on the motion direction and motion distance, backlight offset parameters are determined.

[0268] In some embodiments, the backlight adjustment module 230 is specifically configured to:

[0269] Based on the backlight offset parameter, performing an offset process on the backlight data corresponding to the target image area in the first backlight data to obtain first-area backlight data, wherein the first-area backlight data is backlight data corresponding to the image area where the moving object is located in the second image frame;

[0270] Determining second-area backlight data based on backlight data corresponding to a background image area in the first backlight data, wherein the background image area is an image area other than the target image area in the first image frame, and the second-area backlight data is backlight data corresponding to an image area other than the image area where the moving object is located in the second image frame;

[0271] Target backlight data is constructed based on the first area backlight data and the second area backlight data.

[0272] In some embodiments, the display chip further includes a first parameter correction module; the first parameter correction module is configured to:

[0273] Performing comparative analysis on the first backlight data and the third backlight data, and determining an offset adjustment parameter according to the comparative analysis result, wherein the third backlight data is data for determining the backlight brightness required for displaying the first image frame;

[0274] Correcting the backlight offset parameter corresponding to the second image frame according to the offset adjustment parameter to obtain a corrected backlight offset parameter;

[0275] The backlight adjustment module is further configured to adjust the first backlight data based on the corrected backlight offset parameter.

[0276] In some embodiments, the display chip further includes a second parameter correction module; the second parameter correction module is configured to:

[0277] using backlight offset parameters corresponding to each image frame before the second image frame as historical backlight offset parameters;

[0278] Correcting the backlight offset parameter corresponding to the second image frame using the historical backlight offset parameter to obtain a corrected backlight offset parameter;

[0279] The backlight adjustment module is further configured to adjust the first backlight data based on the corrected backlight offset parameter.

[0280] Based on the same concept, an embodiment of the present invention further provides a display device. The principle of solving the problem of the display device is similar to that of the aforementioned display chip, so the implementation of the display device can refer to the implementation of the aforementioned display chip, and the repeated parts will not be repeated.

[0281] Figure 12 FIG. 1 shows a schematic structural diagram of a display device. Figure 12 As shown, the display device 300 may include a display module 310, a backlight module 320, and a display chip 200 provided in an embodiment of the present invention, wherein:

[0282] The display chip 200 is electrically connected to the display module 310 and the backlight module 320 respectively;

[0283] The display module 310 is configured to receive pixel data corresponding to the second image frame output by the display chip 200 and display an image according to the pixel data;

[0284] The backlight module 320 is configured to receive the target backlight data output by the backlight chip 200 and provide backlight for displaying the second image frame according to the target backlight data.

[0285] In the embodiment of the present invention, the display device 300 may be a television, a computer, etc. Other essential components of the display device 300 are well understood by those skilled in the art and are not described here in detail and should not be construed as limiting the present invention.

[0286] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0287] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A method for processing backlight data, characterized in that: include: determining a target image region in a first image frame based on display data corresponding to two adjacent image frames, wherein the first image frame is the latter of the two adjacent image frames, and the target image region is a region where the moving object is located; determining target motion parameters corresponding to the moving object based on characteristic attribute parameters corresponding to the target image area and initial motion parameters corresponding to the moving object, wherein the characteristic attribute parameters include at least one of the number of the target image areas, the shape of the moving object in the target image area, the size of the target image area, and backlight data corresponding to the target image area, and the target motion parameters include target motion trajectory parameters and target motion speed parameters; determining a motion direction corresponding to the moving object according to the target motion trajectory parameter, and determining a motion distance corresponding to the moving object according to the target motion speed parameter and a preset display duration, and determining a backlight offset parameter corresponding to a second image frame based on the motion direction and the motion distance, wherein the second image frame is a frame subsequent to the first image frame, and the preset display duration is used to indicate a display period corresponding to one image frame; Based on the backlight offset parameter, the first backlight data is offset to generate target backlight data, wherein the first backlight data is determined according to the pixel data corresponding to the first image frame, and the target backlight data is used to determine the backlight brightness required for displaying the second image frame.

2. The method according to claim 1, wherein The determining of the target image area in the first image frame based on display data corresponding to two adjacent image frames includes: performing statistical analysis on pixel data corresponding to a third image frame and pixel data corresponding to the first image frame, and determining a current display screen type based on the statistical analysis result, wherein the third image frame is a previous image frame of the two adjacent image frames, and the display data includes the pixel data and backlight data; When it is determined that the current display picture type is a motion picture type, the target image area is determined in the first image frame based on the first backlight data and the second backlight data, wherein the second backlight data is determined according to the pixel data corresponding to the third image frame.

3. The method according to claim 2, wherein The determining the target image area in the first image frame based on the first backlight data and the second backlight data includes: performing comparative analysis on each backlight data belonging to the same backlight partition in the first backlight data and the second backlight data, and selecting a first backlight partition from each backlight partition corresponding to the first image frame based on the comparative analysis result; Based on the backlight data corresponding to the first backlight partition in the first backlight data, a second backlight partition is selected from the first backlight partitions, and an image region corresponding to the second backlight partition in the first image frame is used as the target image region.

4. The method according to claim 1, wherein The determining, based on the characteristic attribute parameters corresponding to the target image area and the initial motion parameters corresponding to the moving object, the target motion parameters corresponding to the moving object includes: Determining a target scene type corresponding to the target image area based on a magnitude relationship between the characteristic attribute parameter and a preset parameter threshold; The target motion parameters are determined according to the target scene type and the initial motion parameters, wherein the initial motion parameters are calculated based on the display data corresponding to the two adjacent image frames.

5. The method according to claim 4, wherein The determining the target motion parameters according to the target scene type and the initial motion parameters includes: Determining target motion trajectory parameters according to initial motion trajectory parameters and preset motion trajectory parameters corresponding to the target scene type, wherein the initial motion parameters include the initial motion trajectory parameters and initial motion speed parameters, and the initial motion trajectory parameters are used to characterize the actual motion trajectory of the moving object; Based on the initial motion speed parameter and the preset motion speed parameter corresponding to the target scene type, a target motion speed parameter is determined, wherein the initial motion speed parameter is used to characterize the actual motion speed of the moving object, and the target motion parameter includes the target motion trajectory parameter and the target motion speed parameter.

6. The method according to claim 5, wherein The determining of the target motion trajectory parameters according to the initial motion trajectory parameters and the preset motion trajectory parameters corresponding to the target scene type includes: Determining similarity information between the initial motion trajectory parameters and the preset motion trajectory parameters; When the similarity information meets a preset similarity threshold, determining the target motion trajectory parameters according to the preset motion trajectory parameters; When the similarity information does not meet the preset similarity threshold, the target motion trajectory parameters are determined according to the initial motion trajectory parameters.

7. The method according to claim 5, wherein The determining of the target motion speed parameter based on the initial motion speed parameter and the preset motion speed parameter corresponding to the target scene type includes: determining a speed adjustment parameter according to a difference between the initial motion speed parameter and the preset motion speed parameter; The preset motion speed parameter is adjusted using the speed adjustment parameter to obtain the target motion speed parameter.

8. The method according to claim 1, wherein The step of performing an offset process on the first backlight data based on the backlight offset parameter to generate target backlight data includes: performing an offset process on the backlight data corresponding to the target image area in the first backlight data based on the backlight offset parameter to obtain first-area backlight data, wherein the first-area backlight data is backlight data corresponding to the image area where the moving object is located in the second image frame; Determining second-region backlight data based on backlight data corresponding to a background image region in the first backlight data, wherein the background image region is an image region other than the target image region in the first image frame, and the second-region backlight data is backlight data corresponding to an image region other than the image region where the moving object is located in the second image frame; The target backlight data is constructed based on the first area backlight data and the second area backlight data.

9. The method according to any one of claims 1 to 8, wherein The method further comprises: performing a comparative analysis on the first backlight data and third backlight data, and determining an offset adjustment parameter according to the comparative analysis result, wherein the third backlight data is backlight data used to determine the backlight brightness required for displaying the first image frame; Correcting the backlight offset parameter corresponding to the second image frame according to the offset adjustment parameter to obtain a corrected backlight offset parameter; The adjusting the first backlight data based on the backlight offset parameter includes: The first backlight data is adjusted based on the corrected backlight offset parameter.

10. The method according to any one of claims 1 to 8, wherein The method further comprises: using backlight offset parameters corresponding to each image frame preceding the second image frame as historical backlight offset parameters; Correcting the backlight offset parameter corresponding to the second image frame using the historical backlight offset parameter to obtain a corrected backlight offset parameter; The adjusting the first backlight data based on the backlight offset parameter includes: The first backlight data is adjusted based on the corrected backlight offset parameter.

11. A display chip, characterized in that: include: a region division module, configured to determine a target image region in a first image frame based on display data corresponding to two adjacent image frames, wherein the first image frame is the latter of the two adjacent image frames, and the target image region is a region where a moving object is located; a parameter determination module, configured to determine target motion parameters corresponding to the moving object based on characteristic attribute parameters corresponding to the target image area and initial motion parameters corresponding to the moving object, wherein the characteristic attribute parameters include at least one of the number of target image areas, the shape of the moving object in the target image area, the size of the target image area, and backlight data corresponding to the target image area, and the target motion parameters include target motion trajectory parameters and target motion speed parameters; determine the motion direction corresponding to the moving object based on the target motion trajectory parameters, and determine the motion distance corresponding to the moving object based on the target motion speed parameter and a preset display duration, and determine a backlight offset parameter corresponding to a second image frame based on the motion direction and the motion distance, wherein the second image frame is a frame subsequent to the first image frame, and the preset display duration is used to indicate a display period corresponding to one image frame; A backlight adjustment module is used to perform offset processing on the first backlight data based on the backlight offset parameter to generate target backlight data, wherein the first backlight data is determined according to the pixel data corresponding to the first image frame, and the target backlight data is used to determine the backlight brightness required for displaying the second image frame.

12. A display device, characterized in that: The device comprises a display module, a backlight module and the display chip according to claim 11, wherein: The display chip is electrically connected to the display module and the backlight module respectively; The display module is configured to receive pixel data corresponding to the second image frame output by the display chip, and display an image according to the pixel data; The backlight module is configured to receive target backlight data output by the display chip, and provide backlight for displaying the second image frame according to the target backlight data.

Images