Display device, backlight control method and storage medium

Abstract

The embodiment of the invention belongs to the technical field of display, and provides a display device, a backlight control method and a storage medium, the display device comprises a processing module, a backlight control module, a backlight source module and a display screen; the processing module is configured to obtain image data of a target node of a to-be-displayed first image frame; the image data of the target node is image data of a partial region of the first image frame; updating the image data of the target node to the currently displayed second image frame to obtain a third image frame; performing backlight processing on the third image frame to obtain backlight data of the third image frame; displaying the third image frame, and sending backlight data of the third image frame to a backlight control module; and the backlight control module is configured to control the backlight source module to perform backlight display according to the backlight data of the third image frame. The backlight delay when the display device displays the image can be reduced, and the image display quality is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of display technology, and in particular to a display device, a backlight control method, and a storage medium. Background Art

[0002] When displaying an image, a display device can emit backlight consistent with the displayed image through a backlight panel, thereby improving the image display quality and enhancing the viewing experience. Existing backlight technology processes backlight data after acquiring a complete image frame to obtain backlight data, which can then be used for backlight display. However, existing backlight technology has the problem of backlight display lagging behind image display, resulting in poor image display quality. Summary of the Invention

[0003] Embodiments of the present application provide a display device, a backlight control method, and a storage medium to solve the problem that the backlight display of the display device lags behind the image display, resulting in poor image display quality.

[0004] In a first aspect, an embodiment of the present application provides a display device, comprising: a processing module, a backlight control module, a backlight source module, and a display screen;

[0005] The processing module is configured to:

[0006] Acquire image data of a target node of a first image frame to be displayed; the image data of the target node is image data of a partial area of ​​the first image frame;

[0007] Updating the image data of the target node into the currently displayed second image frame to obtain a third image frame;

[0008] performing backlight processing on the third image frame to obtain backlight data of the third image frame;

[0009] displaying the third image frame, and sending backlight data of the third image frame to the backlight control module;

[0010] The backlight control module is configured to control the backlight source module to perform backlight display according to the backlight data of the third image frame.

[0011] Optionally, obtaining image data of a target node of a first image frame to be displayed includes:

[0012] When the image data of the first image frame that meets the image data segmentation parameters is acquired, the image data of the target node is obtained.

[0013] Optionally, the image data segmentation parameter includes at least one of the following:

[0014] Transmission duration and / or image area size.

[0015] Optionally, the processing module is configured to:

[0016] The image data segmentation parameters are acquired according to the attributes of the first image frame and / or the backlight partition division information.

[0017] Optionally, acquiring the image data segmentation parameter according to the attribute of the first image frame and / or the backlight partition division information includes:

[0018] Acquire the number of nodes of the first image frame according to the attributes of the first image frame and / or the backlight partition division information;

[0019] The image data segmentation parameters are obtained according to the number of the nodes.

[0020] Optionally, the attribute includes: the size of the image frame; and obtaining the image data segmentation parameter according to the attribute of the first image frame includes:

[0021] The image data segmentation parameters are acquired according to the size of the first image frame and the mapping relationship between the size of the image frame and the segmentation parameters.

[0022] Optionally, obtaining the image data segmentation parameter according to the attribute of the first image frame and the backlight partition division information includes:

[0023] acquiring a first initial image data segmentation parameter according to an attribute of the first image frame;

[0024] Acquiring a second initial image data segmentation parameter according to the backlight partition division information;

[0025] The image data segmentation parameter is determined from the first initial image data segmentation parameter and the second initial image data segmentation parameter.

[0026] Optionally, determining the image data segmentation parameter from the first initial image data segmentation parameter and the second initial image data segmentation parameter includes:

[0027] The smaller one of the first initial image data segmentation parameter and the second initial image data segmentation parameter is used as the image data segmentation parameter.

[0028] In a second aspect, an embodiment of the present application provides a backlight control method, which is applied to the processing module of the display device according to any one of the first aspects, and the method includes:

[0029] Acquire image data of a target node of a first image frame to be displayed; the image data of the target node is image data of a partial area of ​​the first image frame;

[0030] Updating the image data of the target node into the currently displayed second image frame to obtain a third image frame;

[0031] performing backlight processing on the third image frame to obtain backlight data of the third image frame;

[0032] The third image frame is displayed, and backlight data of the third image frame is sent to the backlight control module, so that the backlight control module controls the backlight source module to perform backlight display according to the backlight data of the third image frame.

[0033] In a third aspect, the present application provides a backlight control device, which is applied to the display device according to any one of the first aspects, and includes:

[0034] An acquiring unit, configured to acquire image data of a target node of a first image frame to be displayed; the image data of the target node is image data of a partial area of ​​the first image frame;

[0035] an updating unit, configured to update the image data of the target node into the currently displayed second image frame to obtain a third image frame;

[0036] a processing unit, configured to perform backlight processing on the third image frame to obtain backlight data of the third image frame;

[0037] The display unit is used to display the third image frame and send the backlight data of the third image frame to the backlight control module, so that the backlight control module controls the backlight source module to perform backlight display according to the backlight data of the third image frame.

[0038] In a fourth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the method of the second aspect.

[0039] In a fifth aspect, the present application provides a computer program product, comprising a computer program, which, when executed by a processor, is used to implement the method described in the second aspect.

[0040] The display device, backlight control method and storage medium provided in this embodiment, the display device includes: a processing module, a backlight control module, a backlight source module, and a display screen. The processing module obtains the image data of the target node of the first image frame to be displayed; then, the image data of the target node is updated to the second image frame currently displayed to obtain a third image frame; then, the processing module performs backlight processing on the third image frame to obtain the backlight data of the third image frame; subsequently, the control module displays the third image frame and sends the backlight data of the third image frame to the backlight control module, so that the backlight control module controls the backlight source module to perform backlight display. Through the above method, the processing module does not wait until the first image frame is completely acquired before processing a first image frame to be displayed, but after acquiring the image data of the target node of the first image frame, it first performs backlight processing and backlight display according to the image data of the target node. This can reduce the waiting time for the pair of frames of image, shorten the delay of backlight display, and thus improve the image display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the implementation methods in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0042] Figure 1 A schematic diagram of the architecture of a display device based on backlight display technology;

[0043] Figure 2 A schematic flow chart of a backlight control method provided in this application;

[0044] Figure 3 A schematic diagram of a backlight control method provided in this application;

[0045] Figure 4 A schematic flow chart of the second backlight control method provided in this application;

[0046] Figure 5 A schematic flow chart of the third backlight control method provided in this application;

[0047] Figure 6 A schematic diagram of the second backlight control method provided in this application;

[0048] Figure 7 This is a schematic diagram of a backlight control device provided in this application.

[0049] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0050] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0051] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0052] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0053] The following are the explanations of the terms used in this application:

[0054] Backlight Zoning Technology: This technology divides a frame of image into multiple regions, and acquires backlight data and controls the backlight for each region separately. This method enables refined backlight control, thereby enhancing backlight display effects and improving image display quality.

[0055] Figure 1 This is a schematic diagram of the architecture of a display device based on backlight display technology. Figure 1 As shown, the display device may include: a processing module 1 , a backlight control module 2 , a backlight source module 3 , and a display screen 4 .

[0056] The processing module 1 is used to obtain the video stream to be displayed, process the video stream, and then separate the processed video stream into image data and backlight data. The processing module 1 can output the image data to the display screen 4 for display; the processing module 1 can also output the backlight data to the backlight control module 2, so that the backlight control module 2 can illuminate the backlight source module 3 according to the backlight data.

[0057] In some embodiments, the processing module 1 may be, for example, a timing controller (TCON), or a core in which the display device is deployed, such as a system-on-chip (SOC). The backlight control module 2 may be, for example, a backlight controller (BCON). The backlight source module 3 may be, for example, a backlight panel, or other electrical device that can serve as a backlight source.

[0058] The display screen 4 may include a liquid crystal display panel. With the development of liquid crystal display technology, different types of liquid crystal display panels have gradually increased. Currently, common liquid crystal display panels include: vertical alignment (VA) liquid crystal display panels, in-plane switching (IPS) liquid crystal display panels, twisted nematic (TN) liquid crystal display panels, etc.

[0059] In the prior art, the process from processing a frame of image to generating backlight data for that frame by processing module 1 often takes 2-3 frames of time, including acquiring the original backlight data (i.e., a frame of image to be displayed), performing data processing such as spatial and temporal filtering, and transmitting the processed data. As a result, the data actually received by backlight control module 2 corresponds to the backlight data of an image 2-3 frames earlier. Therefore, in certain image display scenarios, especially those with fast motion, the backlight may lag significantly behind the image, reducing the image display quality.

[0060] In view of this, the present application provides a display device in which the processing module 1 divides a complete frame of image into multiple parts, and after sequentially acquiring the image data of any one of the parts, immediately performs backlight data processing on the image data, and controls the backlight light source module through the backlight control module 2 to display the image corresponding to the backlight data, rather than waiting until a complete frame of image data is received before processing and acquiring the backlight data. In this way, the delay of backlight display relative to the corresponding image display can be reduced, thereby improving the image display effect.

[0061] It should be understood that the present application does not limit the type of display screen 4 of the display device. The display device may be a display device using a VA-type liquid crystal display screen 4, or may be applied to display devices including other types of display screens 4. In addition, the present application does not limit the type of the display device. For example, it may be a television, a monitor, a touch panel, a smart electronic panel, a mobile phone, etc.

[0062] The technical solutions of the present application and the technical solutions of the present application are described in detail below with reference to specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in certain embodiments. In the description of the present application, unless otherwise clearly specified and limited, each term should be understood in a broad sense within the art. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0063] Continue to refer to Figure 1 ,like Figure 1 As shown, the display device provided in the embodiment of the present application includes: a processing module 1, a backlight control module 2, a backlight source module 3, and a display screen 4. It should be understood that Figure 1 Only part of the structure of the display device is shown, and other structures not related to this application are not shown.

[0064] Based on the above structure, the present application provides a backlight control method, the execution subject of the backlight control method is the processing module 1. As mentioned above, the processing module 1 can be a SOC, a TCON, or other image processing devices, which are not limited in the present application. Figure 2 A flow chart of a backlight control method provided in this application is shown as follows: Figure 2 As shown, when the display device is to display an image and backlight, the method includes the following steps:

[0065] S101 : Acquire image data of a target node of a first image frame to be displayed.

[0066] In this step, the processing module 1 obtains the image data of the target node of the first image frame to be displayed, and then realizes the display of the image data and the backlight display.

[0067] The above-mentioned first image frame can be any frame of image to be displayed in the video stream. The image data of the target node is the image data of a partial area of ​​the first image frame. The target node can be any node of the first image frame. The present application does not limit the way of dividing the nodes. For example, it can be divided according to space (such as the size of the image area) or according to time (such as the transmission duration). It also does not limit the number of nodes into which the first image frame is divided. The nodes of the first image frame can be equally divided or unequally divided.

[0068] Exemplarily, the first image frame may be pre-divided into multiple nodes. Alternatively, when processing module 1 obtains image data of the first image frame that meets image data segmentation parameters, it obtains image data of the target node. The image data segmentation parameters may include, for example, at least one of the following: transmission duration and / or image region size and / or image size.

[0069] For example, if the total transmission time of the first image frame is 0.2ms, then if the image data segmentation parameter includes the transmission time, the parameter value can be, for example, 0.1ms, meaning the first image frame can be divided into two nodes. If the total image area of ​​the first image frame is 40cm*60cm, then the segmentation parameter can be, for example, 20cm*60cm, meaning the first image frame can be divided into two nodes.

[0070] The image data segmentation parameters may include only one of the transmission duration and the image area size, or both. When both are included, for example, when processing module 1 obtains image data that satisfies either image data segmentation parameter, the obtained image data is used as a target node; or, until both image data segmentation parameters are satisfied, the obtained image data is used as a target node. The "satisfaction" mentioned here may, for example, mean that the amount of image data obtained is greater than or equal to the image data segmentation parameter.

[0071] The processing module 1 can obtain the image data of the target node of the first image frame to be displayed through the network, or obtain the image data of the above target node from the storage medium of the display device, or obtain it from other devices, which is not limited in this application.

[0072] S102: Update the image data of the target node to the currently displayed second image frame to obtain a third image frame.

[0073] For example, Figure 3 A schematic diagram of a backlight control method provided in this application is shown in FIG. Figure 3 As shown, the second image frame is the image frame based on which the backlight display is currently being performed, and can also be considered as the original backlight data of the backlight data currently being displayed. That is, the processing module 1 obtains the backlight data based on which the backlight is currently being displayed based on the second image frame. When the processing module 1 updates the image data of the target node to the currently displayed second image frame and obtains the third image frame, the third image frame is used as the original backlight data for backlight processing.

[0074] S103 : Perform backlight processing on the third image frame to obtain backlight data of the third image frame.

[0075] In this step, the processing module 1 performs backlight processing on the third image frame to obtain backlight data of the third image frame, and then backlight control can be performed according to the backlight data of the third image frame.

[0076] The above-mentioned backlight processing may be, for example, data processing such as spatial and temporal filtering required to generate backlight data for the third image frame. The specific implementation method may refer to the existing technology and will not be described in detail here.

[0077] S104 , displaying the third image frame, and sending the backlight data of the third image frame to the backlight control module 2 , so that the backlight control module 2 controls the backlight source module 3 to perform backlight display according to the backlight data of the third image frame.

[0078] In this step, the processing module 1 sends the image data to the display screen 4 so that it displays the third image frame, and sends the backlight data of the third image frame to the backlight control module 2, so that the backlight control module 2 controls the backlight source module 3 to perform backlight display according to the backlight data of the third image frame. As a result, when the display screen 4 displays the third image frame, the backlight source module 3 can perform backlight display accordingly, thereby improving the image display quality.

[0079] In this embodiment, the processing module 1 obtains the image data of the target node of the first image frame to be displayed; then, the image data of the target node is updated to the second image frame currently displayed to obtain the third image frame; then, the processing module 1 performs backlight processing on the third image frame to obtain the backlight data of the third image frame; subsequently, the control module displays the third image frame and sends the backlight data of the third image frame to the backlight control module 2, so that the backlight control module 2 controls the backlight source module 3 to perform backlight display. Through the above method, the processing module 1 does not wait until the first image frame is completely acquired before processing a frame of the first image frame to be displayed, but after acquiring the image data of the target node of the first image frame, it first performs backlight processing and backlight display according to the image data of the target node. This can reduce the waiting time for the pair of frames of image, shorten the delay of backlight display, and thus improve the image display effect.

[0080] Optionally, in some embodiments, the image segmentation parameters may be preset; in other embodiments, the processing module 1 may obtain the image data segmentation parameters, for example, based on the attributes of the first image frame and / or backlight partition division information.

[0081] The attributes of the first image frame may include, for example, any one or more of the size and dimensions of the image frame. In the prior art, backlight partitioning technology is often used to control the backlight of a display device. The backlight partitioning information may include, for example, information such as the backlight partitioning method and the number of partitions.

[0082] In some embodiments, processing module 1 obtains image data segmentation parameters based on attributes of the first image frame. For example, assuming that the attributes of the first image frame include the size of the image frame, processing module 1 can obtain the image data segmentation parameters based on the size of the first image frame and a mapping relationship between the image frame size and the segmentation parameters.

[0083] Exemplarily, the processing module 1 may store a mapping relationship between the size of the image frame and the segmentation parameters. The processing module 1 obtains the size of the first image frame based on the first image frame, and then obtains the image data segmentation parameters based on the size of the first image frame and the above mapping relationship.

[0084] In some embodiments, the processing module 1 obtains the image data segmentation parameters based on the backlight partition division information. Exemplarily, the processing module 1 may store a mapping relationship between the backlight partition division information and the image data segmentation parameters, and the processing module 1 obtains the image data segmentation parameters based on the backlight partition division information and the mapping relationship.

[0085] Alternatively, the number of nodes to be divided for the first image frame is pre-stored in the processing module 1. The processing module 1 obtains the image data segmentation parameter based on the backlight partition division information and the above-mentioned preset number of nodes. Exemplarily, the backlight partition division information may include, for example, the number of backlight partitions, which may be 100, and the number of nodes may be, for example, 4 nodes. Then the image data segmentation parameter may be, for example, 100 / 4=25, that is, after obtaining the image data of 25 backlight partitions, the image data of the 25 backlight partitions are used as target nodes for subsequent backlight processing.

[0086] In some embodiments, the processing module 1 may, for example, first obtain the number of nodes of the first image frame according to the attributes of the first image frame and / or backlight partition division information; and then obtain the image data segmentation parameters according to the number of nodes.

[0087] Exemplarily, the processing module 1 may, for example, store a mapping relationship between the attributes of the first image frame and / or the backlight partition division information and the number of nodes of the first image frame. After obtaining the number of nodes of the first image frame accordingly, the processing module 1 may, for example, calculate and obtain the image data segmentation parameter based on the number of nodes. Exemplarily, taking the number of nodes as 20 as an example, if the size of the first image frame is 20M, the image data segmentation parameter may, for example, be 20M / 20=1M. Alternatively, if the transmission time of the first image frame is 0.2ms, then the image data segmentation parameter may, for example, be 0.2ms / 20=0.01ms.

[0088] In some embodiments, the processing module 1 can obtain image data segmentation parameters based on the attributes of the first image frame and the backlight partition division information. Figure 4 This is a flow chart of the second backlight control method provided in this application, such as Figure 4 As shown, the method may include the following steps:

[0089] S201: Obtain first initial image data segmentation parameters according to attributes of a first image frame.

[0090] The specific implementation method can refer to the method of obtaining the image data segmentation parameters according to the attributes of the first image frame in the above embodiment, and will not be repeated here.

[0091] S202: Acquire a second initial image data segmentation parameter according to the backlight partition division information.

[0092] The specific implementation method can refer to the method of obtaining the image data segmentation parameters according to the backlight partition division information in the above embodiment, and will not be repeated here.

[0093] S203 : Determine an image data segmentation parameter from the first initial image data segmentation parameter and the second initial image data segmentation parameter.

[0094] In a possible implementation, the processing module 1 may, for example, use the smaller of the first initial image data segmentation parameter and the second initial image data segmentation parameter as the image data segmentation parameter.

[0095] The smaller the image data segmentation parameter, the smaller the relative backlight delay. Therefore, by selecting the smaller image data segmentation parameter from the two methods described above, the backlight display effect can be further improved, the backlight display delay can be shortened, and the image display quality can be improved.

[0096] Taking a total of 100 backlight partitions and every 50 backlight partitions as a target node as an example, the backlight control method for a complete first image frame is exemplarily described. Figure 5 This is a flow chart of the third backlight control method provided in this application. Figure 6 This is a schematic diagram of the second backlight control method provided by this application, such as Figure 5 and Figure 6 As shown, the method may include the following steps:

[0097] S301: Acquire image data of a first target node of a first image frame to be displayed.

[0098] The first target node includes the first 50 backlight subareas of the first image frame acquired sequentially.

[0099] S302: Update the image data of the first target node to the currently displayed second image frame to obtain a third image frame.

[0100] S303, performing backlight processing on the third image frame to obtain backlight data of the third image frame;

[0101] S304 , displaying the third image frame, and sending the backlight data of the third image frame to the backlight control module 2 , so as to control the backlight control module 2 to control the backlight source module 3 to perform backlight display according to the backlight data of the third image frame.

[0102] S305: Acquire image data of the second target node of the first image frame to be displayed.

[0103] The second target node includes the last 50 backlight subareas of the first image frame acquired sequentially.

[0104] S306: Update the image data of the second target node to the currently displayed second image frame to obtain a third image frame.

[0105] It should be understood that the image data content of the second image frame at this time is different from that of the second image frame in the above step S302, but is the same as the image data of the third image frame in the above step S302.

[0106] S307, performing backlight processing on the third image frame to obtain backlight data of the third image frame;

[0107] S308 , displaying the third image frame, and sending the backlight data of the third image frame to the backlight control module 2 , so as to control the backlight control module 2 to control the backlight source module 3 to perform backlight display according to the backlight data of the third image frame.

[0108] It should be understood that the above steps S302 and S305 can be executed in parallel, that is, the processing module 1 obtains the image data of the second target node of the first image frame to be displayed while performing backlight processing on the image data of the first target node of the first image frame.

[0109] At this point, through the above implementation method, the complete backlight display of the first image frame can be completed in two nodes. Compared with the method of performing backlight processing on the first image frame after loading a complete first image frame, the above method can shorten the delay of backlight display compared to image display and improve the image display quality.

[0110] Figure 7 This is a schematic diagram of a backlight control device provided in the present application. The backlight control device is applied to the display device described in any of the above embodiments. The backlight control device includes: an acquisition unit 11, an update unit 12, a processing unit 13, and a display unit 14.

[0111] An acquiring unit 11 is configured to acquire image data of a target node of a first image frame to be displayed; the image data of the target node is image data of a partial area of ​​the first image frame;

[0112] An updating unit 12, configured to update the image data of the target node to the currently displayed second image frame to obtain a third image frame;

[0113] The processing unit 13 is configured to perform backlight processing on the third image frame to obtain backlight data of the third image frame;

[0114] The display unit 14 is configured to display the third image frame and send backlight data of the third image frame to the backlight control unit, so that the backlight control unit controls the backlight source module to perform backlight display according to the backlight data of the third image frame.

[0115] Optionally, the acquiring unit 11 is specifically configured to obtain the image data of the target node when the image data of the first image frame that meets the image data segmentation parameters is acquired.

[0116] Optionally, the image data segmentation parameter includes at least one of the following: transmission duration and / or image area size.

[0117] Optionally, the acquiring unit 11 is further configured to acquire the image data segmentation parameters according to the attributes of the first image frame and / or the backlight partition division information.

[0118] For example, the acquisition unit 11 is specifically configured to acquire the number of nodes of the first image frame according to the attributes of the first image frame and / or the backlight partition division information; and acquire the image data segmentation parameter according to the number of nodes.

[0119] Optionally, the attributes include: the size of the image frame; the acquisition unit 11 is specifically configured to acquire the image data segmentation parameters according to the size of the first image frame and the mapping relationship between the image frame size and the segmentation parameters.

[0120] Optionally, the acquisition unit 11 is specifically used to obtain a first initial image data segmentation parameter based on the attributes of the first image frame; obtain a second initial image data segmentation parameter based on the backlight partition division information; and determine the image data segmentation parameter from the first initial image data segmentation parameter and the second initial image data segmentation parameter.

[0121] Optionally, the acquiring unit 11 is specifically configured to use the smaller one of the first initial image data segmentation parameter and the second initial image data segmentation parameter as the image data segmentation parameter.

[0122] The backlight control device provided in the embodiment of the present application can execute the method executed by the processing module 1 in the above method embodiment, and its implementation principle and technical effect are similar, which will not be described in detail here. Figure 7The division of the units shown is only a schematic illustration, and the present application does not limit the division of the units and the naming of the units.

[0123] The present application also provides a computer-readable storage medium, which may include: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes. Specifically, the computer-readable storage medium stores program instructions, which are used to implement the backlight control method in the above embodiment.

[0124] The present application also provides a computer program product, comprising computer-executable instructions stored in a readable storage medium. At least one processor of an electronic device can read the computer-executable instructions from the readable storage medium, and at least one processor executes the computer-executable instructions to cause the electronic device to implement the backlight control methods provided in the various embodiments described above.

[0125] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of modules is only a logical function division. In actual implementation, there may be other division methods, such as multiple modules can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or module, which can be electrical, mechanical or other forms.

[0126] Modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, that is, they may be located in one place or distributed across multiple network elements. Some or all of these modules may be selected to achieve the purpose of this embodiment based on actual needs.

[0127] In addition, the functional modules in the various embodiments of the present application may be integrated into a single processing unit, or each module may exist physically separately, or two or more modules may be integrated into a single unit. The above-mentioned modules may be implemented in the form of hardware or hardware plus software functional units.

[0128] The integrated modules implemented in the form of software function modules can be stored in a computer-readable storage medium. The software function modules stored in a storage medium include a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute some of the steps of the methods of various embodiments of the present application.

[0129] It should be understood that the processor described above may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), or application-specific integrated circuits (ASICs). A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the application may be directly executed by a hardware processor or by a combination of hardware and software modules within the processor.

[0130] The memory may include a high-speed RAM memory, and may also include non-volatile storage NVM, such as at least one disk memory, and may also be a USB flash drive, a mobile hard disk, a read-only memory, a magnetic disk or an optical disk.

[0131] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be classified into address buses, data buses, and control buses. For ease of illustration, the buses in the drawings of this application are not limited to just one bus or just one type of bus.

[0132] The computer-readable storage medium may be implemented by any type of volatile or non-volatile memory device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0133] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0134] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0135] For ease of explanation, the above description has been made with reference to specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations are possible. The above embodiments are selected and described to better explain the principles and practical applications, so that those skilled in the art can better utilize the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A display device, characterized in that: The display device includes: a processing module, a backlight control module, a backlight source module, and a display screen; The processing module is configured to: Acquire image data of a target node of a first image frame to be displayed; the image data of the target node is image data of a partial area of ​​the first image frame; Updating the image data of the target node into the currently displayed second image frame to obtain a third image frame; performing backlight processing on the third image frame to obtain backlight data of the third image frame; displaying the third image frame, and sending backlight data of the third image frame to the backlight control module; The backlight control module is configured to control the backlight source module to perform backlight display according to the backlight data of the third image frame.

2. The display device according to claim 1, wherein The step of obtaining image data of a target node of a first image frame to be displayed includes: When the image data of the first image frame that meets the image data segmentation parameters is acquired, the image data of the target node is obtained.

3. The display device according to claim 2, wherein The image data segmentation parameters include at least one of the following: Transmission duration and / or image area size.

4. The display device according to claim 3, wherein The processing module is configured to: The image data segmentation parameters are acquired according to the attributes of the first image frame and / or the backlight partition division information.

5. The display device according to claim 4, wherein: The acquiring the image data segmentation parameter according to the attribute of the first image frame and / or the backlight partition division information includes: Acquire the number of nodes of the first image frame according to the attributes of the first image frame and / or the backlight partition division information; The image data segmentation parameters are obtained according to the number of the nodes.

6. The display device according to claim 4, wherein: The attribute includes: the size of the image frame; and obtaining the image data segmentation parameter according to the attribute of the first image frame includes: The image data segmentation parameters are acquired according to the size of the first image frame and the mapping relationship between the size of the image frame and the segmentation parameters.

7. The display device according to claim 4, wherein: The acquiring the image data segmentation parameter according to the attribute of the first image frame and the backlight partition division information includes: acquiring a first initial image data segmentation parameter according to an attribute of the first image frame; Acquiring a second initial image data segmentation parameter according to the backlight partition division information; The image data segmentation parameter is determined from the first initial image data segmentation parameter and the second initial image data segmentation parameter.

8. The display device according to claim 7, wherein: The determining the image data segmentation parameter from the first initial image data segmentation parameter and the second initial image data segmentation parameter comprises: The smaller one of the first initial image data segmentation parameter and the second initial image data segmentation parameter is used as the image data segmentation parameter.

9. A backlight control method, characterized in that: The backlight control method is applied to the processing module of the display device according to any one of claims 1 to 8, and the method includes: Acquire image data of a target node of a first image frame to be displayed; the image data of the target node is image data of a partial area of ​​the first image frame; Updating the image data of the target node into the currently displayed second image frame to obtain a third image frame; performing backlight processing on the third image frame to obtain backlight data of the third image frame; The third image frame is displayed, and backlight data of the third image frame is sent to the backlight control module, so that the backlight control module controls the backlight source module to perform backlight display according to the backlight data of the third image frame.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to claim 8 when executed by a processor.

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