Image display control method, system, image display device and storage medium

Abstract

This application discloses an image display control method, system, image display device, and storage medium, relating to the field of display technology. The method includes: acquiring blanking period information of the current display scan line corresponding to the current display image, and a target backlight array row partition corresponding to the current display scan line; acquiring image dynamic features corresponding to the current display image, and controlling the blanking period backlight on-time of the target backlight array row partition based on the image dynamic features and blanking period information; acquiring regional brightness features of the target image area, and controlling the blanking period backlight intensity of the target backlight array row partition based on the regional brightness features and blanking period information, wherein the target image area is the image area in the current display image corresponding to the current display scan line. Thus, the backlight on-time and intensity are adaptively adjusted without increasing the hardware cost of the display device, and this is beneficial for optimizing the image display effect.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to an image display control method, system, image display device, and storage medium. Background Technology

[0002] Currently, various display devices are being used more and more widely, and users' requirements for display devices are gradually increasing. LCD TVs, as the mainstream display device, work by using the flipping of liquid crystal molecules to allow light to pass through and block it, thus displaying the corresponding image. However, the response speed of liquid crystal molecules is limited, and when displaying fast-moving dynamic images, image trailing is prone to occur.

[0003] In existing technologies, image trailing is typically addressed by optimizing the liquid crystal material. The problem with these technologies is that optimizing the liquid crystal material requires additional hardware costs, and the effect on improving image trailing is limited, hindering efforts to reduce hardware costs and optimize image display quality.

[0004] Therefore, the relevant technologies still need to be improved and developed. Summary of the Invention

[0005] The main objective of this application is to provide an image display control method, system, image display device, and storage medium, aiming to solve the technical problem that the solution of handling image trailing by optimizing liquid crystal materials in related technologies is not conducive to reducing the hardware cost of display devices and optimizing image display effects.

[0006] To achieve the above objectives, a first aspect of this application provides an image display control method, wherein the image display control method includes:

[0007] Obtain the blanking period information of the current display scan line corresponding to the currently displayed image, as well as the target backlight array row partition corresponding to the aforementioned current display scan line;

[0008] Obtain the image dynamic features corresponding to the currently displayed image, and control the blanking period backlight on-time of the target backlight array row partition based on the image dynamic features and the blanking period information.

[0009] The brightness characteristics of the target image region are obtained, and the backlight intensity of the blanking period of the target backlight array row partition is controlled based on the brightness characteristics and the blanking period information. The target image region is the image region in the currently displayed image that corresponds to the currently displayed scan row.

[0010] Optionally, obtaining the blanking period information of the current display scan line corresponding to the currently displayed image, and the target backlight array row partition corresponding to the current display scan line, includes:

[0011] The system-on-chip based on the image display device obtains the blanking period information of the current display scan line corresponding to the currently displayed image, wherein the blanking period information includes the blanking period start time and the blanking period end time;

[0012] The target backlight array row partition corresponding to the current display scan row is determined from the multiple backlight array row partitions of the aforementioned image display device.

[0013] Optionally, the above-mentioned acquisition of the image dynamic features corresponding to the currently displayed image, and the control of the blanking period backlight on-time of the target backlight array row partition based on the image dynamic features and the blanking period information, includes:

[0014] Obtain the image dynamic features corresponding to the currently displayed image, wherein the image dynamic features are used to characterize the motion speed of the object or scene in the currently displayed image;

[0015] Based on the above image dynamic features and the preset backlight duration matching table, determine the backlight duration adjustment coefficient that matches the above image dynamic features;

[0016] Based on the aforementioned backlight duration adjustment coefficient and the aforementioned blanking period information, the blanking period backlight on-time of the aforementioned target backlight array row partition is controlled.

[0017] Optionally, the backlight duration adjustment coefficient mentioned above shall not be greater than 1;

[0018] The above-mentioned backlight duration adjustment coefficient and blanking period information are used to control the blanking period backlight on-time of the target backlight array row partition, including:

[0019] Based on the above blanking period information, determine the original backlight duration of the blanking period corresponding to the row partition of the target backlight array;

[0020] The original backlight duration of the blanking period is adjusted according to the backlight duration adjustment coefficient to obtain the target backlight duration of the blanking period corresponding to the row partition of the target backlight array.

[0021] Based on the target backlight duration during the blanking period, backlight control is performed on the row partitions of the target backlight array.

[0022] Optionally, the above-mentioned acquisition of the regional brightness features of the target image region, and the control of the backlight intensity of the blanking period of the target backlight array row partition based on the regional brightness features and the blanking period information, includes:

[0023] Obtain the overall brightness value of the currently displayed image and the overall brightness value of the target image area;

[0024] Based on the ratio of the overall brightness value of the aforementioned region to the overall brightness value of the aforementioned image, the regional brightness coefficient of the aforementioned target image region is determined, and the aforementioned regional brightness coefficient is used as the regional brightness feature of the aforementioned target image region.

[0025] Based on the aforementioned regional brightness coefficients and blanking period information, the blanking period backlight intensity of the aforementioned target backlight array row partitions is controlled.

[0026] Optionally, controlling the blanking period backlight intensity of the target backlight array row partitions based on the aforementioned regional brightness coefficient and blanking period information includes:

[0027] Based on the above-mentioned regional brightness coefficients and the preset backlight intensity matching table, determine the blanking period backlight intensity adjustment coefficient that matches the above-mentioned regional brightness coefficients.

[0028] Based on the above blanking period information, the blanking period corresponding to the row partition of the target backlight array is determined, and the original backlight drive current intensity of the row partition of the target backlight array within the blanking period is obtained.

[0029] The original backlight drive current intensity during the blanking period is adjusted according to the above blanking period backlight intensity adjustment coefficient to obtain the target backlight drive current intensity during the blanking period.

[0030] Based on the target backlight driving current intensity during the blanking period, backlight control is performed on the row partitions of the target backlight array.

[0031] Optionally, the above methods also include:

[0032] Obtain the device type of the image display device;

[0033] Based on the aforementioned device type, adjust the blanking period backlight on-time and / or blanking period backlight intensity of the aforementioned target backlight array row partitions.

[0034] A second aspect of this application provides an image display control system, wherein the image display control system includes:

[0035] The data acquisition module is used to acquire the blanking period information of the current display scan line corresponding to the currently displayed image, as well as the target backlight array row partition corresponding to the aforementioned current display scan line;

[0036] The backlight duration adjustment module is used to obtain the image dynamic features corresponding to the currently displayed image, and control the backlight on-time of the blanking period of the target backlight array row partition based on the image dynamic features and the blanking period information.

[0037] The backlight intensity adjustment module is used to obtain the regional brightness characteristics of the target image area, and control the backlight intensity of the blanking period of the target backlight array row partition according to the aforementioned regional brightness characteristics and the aforementioned blanking period information. The target image area is the image area in the currently displayed image that corresponds to the aforementioned currently displayed scan row.

[0038] A third aspect of this application provides an image display device, wherein the image display device includes a main control board and a liquid crystal display screen, the system on-chip in the main control board is communicatively connected to the timing controller in the liquid crystal display screen, and the system on-chip obtains blanking period information through the row scan strobe signal output by the timing controller;

[0039] The above-mentioned system-on-chip performs backlight control on the backlight array in the above-mentioned liquid crystal display screen based on any of the steps of the above-mentioned image display control method.

[0040] A fourth aspect of this application provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of any of the above-described image display control methods.

[0041] As can be seen from the above, in this application, the blanking period information of the current display scan line corresponding to the current display image and the target backlight array row partition corresponding to the current display scan line are obtained; the image dynamic features corresponding to the current display image are obtained, and the blanking period backlight on-time of the target backlight array row partition is controlled according to the image dynamic features and the blanking period information; the regional brightness features of the target image area are obtained, and the blanking period backlight intensity of the target backlight array row partition is controlled according to the regional brightness features and the blanking period information, wherein the target image area is the image area in the current display image corresponding to the current display scan line.

[0042] Compared to existing technologies, the image display control method provided in this application eliminates the need for liquid crystal material optimization. Instead, it addresses image trailing issues through software optimization. Specifically, based on image dynamic characteristics and blanking period information, the blanking period backlighting duration of the target backlight array row partitions is controlled. Furthermore, based on regional brightness characteristics and blanking period information, the blanking period backlighting intensity of the target backlight array row partitions is controlled. Thus, based on actual application scenarios, the backlighting duration and intensity are adaptively adjusted, reducing display residue when liquid crystal molecules are not fully switched. This eliminates the need to increase the hardware cost of the display device and improves image display performance. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a flowchart illustrating an image display control method provided in an embodiment of this application;

[0045] Figure 2 This is a flowchart illustrating another image display control method provided in an embodiment of this application;

[0046] Figure 3 This is a schematic diagram of backlight control during row display and blanking provided in an embodiment of this application;

[0047] Figure 4 This is a schematic diagram of backlight adjustment provided in an embodiment of this application;

[0048] Figure 5 This is a schematic diagram of the constituent modules of an image display control system provided in an embodiment of this application;

[0049] Figure 6 This is a system block diagram of an image display device provided in an embodiment of this application. Detailed Implementation

[0050] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of this application with unnecessary detail.

[0051] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0052] It should also be understood that the terminology used in this application specification is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0053] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0054] As used in this specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to classification." Similarly, the phrases "if determined" or "if classified to [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once classified to [the described condition or event]," or "in response to classification to [the described condition or event]."

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0056] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0057] Currently, various display devices are being used more and more widely. For example, more and more LCD TVs are being used extensively. Their working principle is to achieve the transmission and blocking of light through the flipping of liquid crystal molecules, thereby displaying the corresponding image. However, the response speed of liquid crystal molecules is limited, and when displaying fast-moving dynamic images, image trailing is prone to occur. Because the grayscale response time of liquid crystal molecules is usually 3-10 milliseconds, areas of liquid crystal molecules that have not flipped in time will retain the previously displayed image signal. When this signal is superimposed on the current image signal, the image will appear relatively messy and blurry, seriously affecting the user's viewing experience. This blurring effect is particularly severe when watching dynamic scenes such as football and racing, as well as game images with fast-moving perspectives or objects.

[0058] In some applications, to mitigate image trailing in LCD TVs, methods such as using fast-response liquid crystal materials, optimizing the LCD panel's driving circuitry, and increasing the TV's refresh rate can be employed to improve the response speed of dynamic images. However, these methods often increase hardware costs, and in practical applications, their effectiveness remains limited, failing to completely eliminate image trailing.

[0059] To address at least one of the aforementioned technical problems, the present application provides the following solution: Obtaining blanking period information of the current display scan line corresponding to the currently displayed image, and a target backlight array row partition corresponding to the current display scan line; obtaining image dynamic features corresponding to the current display image, and controlling the blanking period backlight on-time of the target backlight array row partition based on the image dynamic features and the blanking period information; obtaining regional brightness features of the target image area, and controlling the blanking period backlight intensity of the target backlight array row partition based on the regional brightness features and the blanking period information, wherein the target image area is the image area in the current display image corresponding to the current display scan line.

[0060] Compared with existing technologies, the image display control method provided in this application does not require optimization of liquid crystal materials, but instead addresses the image trailing problem based on a software optimization scheme. Specifically, based on the image dynamic characteristics and blanking period information, the blanking period backlight on-time of the target backlight array row partitions is controlled, and based on the regional brightness characteristics and blanking period information, the blanking period backlight intensity of the target backlight array row partitions is controlled.

[0061] Specifically, the image display control method provided in this application is a method for controlling backlight during the horizontal scanning blanking period of an LCD TV. By adaptively adjusting the backlight on-time and intensity based on the characteristics of the image content during the horizontal scanning blanking period, and leveraging the ease of control of multi-zone MiniLED backlight drivers, it reduces display residue caused by incomplete switching of liquid crystal molecules. This reduces image trailing while minimizing loss of original screen brightness, improving the clarity and smoothness of the displayed image. Compared to existing technologies, this application does not require additional expensive hardware; it only requires simple modifications to the display control process and circuitry of the LCD TV, making it low-cost and easy to implement.

[0062] like Figure 1 As shown in the figure, this application provides an image display control method, which specifically includes the following steps:

[0063] Step S100: Obtain the blanking period information of the current display scan line corresponding to the current display image, and the target backlight array row partition corresponding to the current display scan line;

[0064] Step S200: Obtain the image dynamic features corresponding to the currently displayed image, and control the blanking period backlight on-time of the target backlight array row partition based on the image dynamic features and the blanking period information.

[0065] Step S300: Obtain the regional brightness features of the target image region, and control the backlight intensity of the blanking period of the target backlight array row partition based on the aforementioned regional brightness features and the aforementioned blanking period information, wherein the aforementioned target image region is the image region in the aforementioned currently displayed image that corresponds to the aforementioned currently displayed scan row.

[0066] The aforementioned currently displayed image is the image frame currently being displayed in the image display device, the aforementioned currently displayed scan line is the line currently being displayed and driven, corresponding to a backlight array row partition being driven in the image display device, and the aforementioned blanking period information is used to characterize the blanking period information corresponding to the backlight row array.

[0067] As can be seen from the above, in this application, the backlight on-time of the target backlight array row partitions during the blanking period is controlled based on the image dynamic characteristics and blanking period information, and the backlight intensity of the target backlight array row partitions during the blanking period is controlled based on the regional brightness characteristics and blanking period information. Thus, based on actual application scenarios, the backlight on-time and intensity are adaptively adjusted, reducing display residue when liquid crystal molecules have not fully switched, without increasing the hardware cost of the display device, and is beneficial for optimizing image display effects.

[0068] Specifically, in this embodiment, the application of the above method to an LCD TV is used as an example for explanation, that is, the image display device in this application is an LCD TV, but this is not a specific limitation. In actual application, the above image display device can also be other devices such as a display screen.

[0069] Figure 2 This is a flowchart illustrating another image display control method provided in an embodiment of this application, as shown below. Figure 2 As shown, the image display device first identifies the blanking period of the current LCD glass display scan line and its start and end times. The backlight is adjusted only during this period to briefly reduce the backlight during the interval of image signal updates, thus avoiding the residue when liquid crystal molecules have not completely switched.

[0070] Specifically, obtaining the blanking period information of the current display scan line corresponding to the currently displayed image, and the target backlight array row partition corresponding to the current display scan line, includes:

[0071] The system-on-chip based on the image display device obtains the blanking period information of the current display scan line corresponding to the currently displayed image, wherein the blanking period information includes the blanking period start time and the blanking period end time;

[0072] The target backlight array row partition corresponding to the current display scan row is determined from the multiple backlight array row partitions of the aforementioned image display device.

[0073] In this embodiment, the blanking period information of the current display scan line corresponding to the currently displayed image is obtained by the system-on-a-chip (SOC) of the image display device. Then, based on the row partitioning of the MiniLED backlight array, the target backlight array row partition corresponding to the current liquid crystal glass display line is determined.

[0074] Figure 3 This is a schematic diagram of backlight control during row display and blanking provided in an embodiment of this application. In this embodiment, the Nth row array is used as an example for specific explanation. Figure 3 As shown, the dashed lines represent the current scan display lines of the LCD screen, corresponding to the Nth row of the MiniLED backlight array in the TV. During the line display period of the LCD screen, the MiniLED backlight array is controlled in the traditional way. During the line blanking period of the LCD screen, the backlight of the Nth row array is adjusted individually. This method, which does not completely shut down the backlight but utilizes the advantage of the multi-zone MiniLED backlight array to locally adjust the backlight only when the liquid crystal molecules in the current display scan line are not fully flipped, can reduce image trailing and minimize the loss of overall image brightness, thereby improving image clarity and smoothness.

[0075] Specifically, the process of obtaining the image dynamic features corresponding to the currently displayed image, and controlling the blanking period backlight on-time of the target backlight array row partitions based on the image dynamic features and the blanking period information, includes:

[0076] Obtain the image dynamic features corresponding to the currently displayed image, wherein the image dynamic features are used to characterize the motion speed of the object or scene in the currently displayed image;

[0077] Based on the above image dynamic features and the preset backlight duration matching table, determine the backlight duration adjustment coefficient that matches the above image dynamic features;

[0078] Based on the aforementioned backlight duration adjustment coefficient and the aforementioned blanking period information, the blanking period backlight on-time of the aforementioned target backlight array row partition is controlled.

[0079] Specifically, the overall dynamic effect of the currently displayed image is judged, and the backlight on-time of the Nth row array is adjusted according to different dynamic characteristics. A preset backlight duration matching table is shown in Table 1 below:

[0080] Table 1

[0081] Backlight on duration 0％ 30％ 80％ 100％

[0082] Specifically, as shown in Table 1, if the image dynamic features are determined to be a fast-moving image, the Nth row array backlight is turned off during the entire blanking period (i.e., the on duration is 0%). If it is determined to be a slow-moving image, the Nth row array backlight is turned off for 70% of the blanking period (i.e., the on duration is 30%). If it is determined to be a very slow-moving image, the Nth row array backlight is turned off only for 20% of the blanking period (i.e., the on duration is 80%). If it is determined to be a still image, the Nth row array backlight is not turned off during the entire blanking period (i.e., the on duration is 100%).

[0083] In one application scenario, the aforementioned backlight duration adjustment coefficient is no greater than 1;

[0084] The above-mentioned backlight duration adjustment coefficient and blanking period information are used to control the blanking period backlight on-time of the target backlight array row partition, including:

[0085] Based on the above blanking period information, determine the original backlight duration of the blanking period corresponding to the row partition of the target backlight array;

[0086] The original backlight duration of the blanking period is adjusted according to the backlight duration adjustment coefficient to obtain the target backlight duration of the blanking period corresponding to the row partition of the target backlight array.

[0087] Based on the target backlight duration during the blanking period, backlight control is performed on the row partitions of the target backlight array.

[0088] Furthermore, the SOC also discriminates the overall brightness parameter characteristics of the original image region corresponding to the Nth row of the backlight array in the current image. That is, it compares the overall brightness value of the region with the overall brightness value of the entire original image of the current display frame to obtain the region brightness coefficient of the current region, and adjusts the backlight driving current intensity of the Nth row array according to different brightness coefficients.

[0089] Specifically, the acquisition of the regional brightness features of the target image region, and the control of the backlight intensity during the blanking period of the target backlight array row partitions based on the aforementioned regional brightness features and the aforementioned blanking period information, include:

[0090] Obtain the overall brightness value of the currently displayed image and the overall brightness value of the target image area;

[0091] Based on the ratio of the overall brightness value of the aforementioned region to the overall brightness value of the aforementioned image, the regional brightness coefficient of the aforementioned target image region is determined, and the aforementioned regional brightness coefficient is used as the regional brightness feature of the aforementioned target image region.

[0092] Based on the aforementioned regional brightness coefficients and blanking period information, the blanking period backlight intensity of the aforementioned target backlight array row partitions is controlled.

[0093] The control of the blanking period backlight intensity of the target backlight array row partitions based on the aforementioned regional brightness coefficients and blanking period information includes:

[0094] Based on the above-mentioned regional brightness coefficients and the preset backlight intensity matching table, determine the blanking period backlight intensity adjustment coefficient that matches the above-mentioned regional brightness coefficients.

[0095] Based on the above blanking period information, the blanking period corresponding to the row partition of the target backlight array is determined, and the original backlight drive current intensity of the row partition of the target backlight array within the blanking period is obtained.

[0096] The original backlight drive current intensity during the blanking period is adjusted according to the above blanking period backlight intensity adjustment coefficient to obtain the target backlight drive current intensity during the blanking period.

[0097] Based on the target backlight driving current intensity during the blanking period, backlight control is performed on the row partitions of the target backlight array.

[0098] In this embodiment of the application, a backlight intensity matching table is provided, as shown in Table 2 below:

[0099] Table 2

[0100]

[0101] As shown in Table 2, if the brightness coefficient of the area is greater than or equal to 50%, the backlight driving current intensity of the Nth row array during the horizontal blanking period will be adjusted to 30% of the original backlight driving current intensity during the horizontal blanking period. If the coefficient is greater than 20% and less than 50%, the backlight driving current intensity of the Nth row array during the horizontal blanking period will be adjusted to 10% of the original backlight driving current intensity during the horizontal blanking period. If the coefficient is less than or equal to 20%, the backlight of the Nth row array during the horizontal blanking period will be turned off.

[0102] It should be noted that the specific values ​​in Tables 1 and 2 can be set and adjusted according to actual needs, and no specific restrictions are imposed here.

[0103] Figure 4 This is a schematic diagram of backlight adjustment provided in an embodiment of this application. Specifically, Figure 4 This illustrates the backlight adjustment scheme for slow motion and a region luminance coefficient greater than or equal to 50%. For example... Figure 4As shown, the backlight is turned off during the period from the start of the line scan blanking to 70% of the overall blanking duration, thus blocking the image display and indirectly achieving black insertion. This prioritizes reducing the impact of incomplete liquid crystal molecule flipping on the image. Then, from 70% of the overall blanking duration to the end of the blanking for that line, the backlight driving current intensity of the Nth row array is adjusted to 30% of the original backlight driving current intensity during the blanking period of that line, restoring a certain amount of luminous flux and appropriately compensating for the loss of image brightness. In this way, while adjusting only the backlight of the Nth row array, it is not a one-size-fits-all approach, but rather an adaptive adjustment of the backlight on-time and intensity based on the image characteristics of the current television content. This further reduces image trailing while minimizing the original image brightness loss and optimizing the overall image effect.

[0104] In one application scenario, the above method also includes:

[0105] Obtain the device type of the image display device;

[0106] Based on the aforementioned device type, adjust the blanking period backlight on-time and / or blanking period backlight intensity of the aforementioned target backlight array row partitions.

[0107] Specifically, different types of image display devices have different display characteristics, so backlight can be further controlled according to the device type. For example, when a television uses an in-plane switching (IPS) screen, its response speed is fast but its transmittance and brightness are relatively poor. Based on the methods mentioned above, the backlight on-time during the horizontal blanking period can be extended and the backlight intensity increased to reduce ghosting and compensate for its insufficient brightness. If a vertical alignment (VA) screen is used, its response speed is slower but its transmittance and brightness are relatively good. Therefore, the backlight on-time during the horizontal blanking period can be further reduced and the backlight intensity decreased to further reduce ghosting while ensuring minimal brightness loss, resulting in a smoother image.

[0108] It should be noted that the image display control method provided in this application not only optimizes the image display effect but also reduces the backlight's emission time and intensity, thereby reducing the energy consumption of the LCD TV (i.e., the image display device) and achieving a certain energy-saving effect. Simultaneously, the reduced heat generation of the backlight module indirectly optimizes the device's heat dissipation, improving the TV's stability and lifespan.

[0109] like Figure 5 As shown, corresponding to the above-described image display control method, this application embodiment also provides an image display control system, which includes:

[0110] The data acquisition module 510 is used to acquire the blanking period information of the current display scan line corresponding to the current display image, as well as the target backlight array row partition corresponding to the current display scan line;

[0111] The backlight duration adjustment module 520 is used to obtain the image dynamic features corresponding to the currently displayed image, and control the backlight on-time of the blanking period of the target backlight array row partition based on the image dynamic features and the blanking period information.

[0112] The backlight intensity adjustment module 530 is used to acquire the regional brightness characteristics of the target image area, and control the backlight intensity of the blanking period of the target backlight array row partition according to the aforementioned regional brightness characteristics and the aforementioned blanking period information, wherein the aforementioned target image area is the image area in the aforementioned currently displayed image that corresponds to the aforementioned currently displayed scan line.

[0113] Thus, based on the image's dynamic characteristics and blanking period information, the blanking period backlight duration of the target backlight array's row partitions is controlled, and based on the region's brightness characteristics and blanking period information, the blanking period backlight intensity of the target backlight array's row partitions is controlled. In this way, based on actual application scenarios, the backlight duration and intensity are adaptively adjusted, reducing display residue when liquid crystal molecules have not fully switched, without increasing the hardware cost of the display device, and improving image display effects.

[0114] It should be noted that the specific structure and implementation of the above-mentioned image display control system and its various modules or units can be referred to the corresponding descriptions in the above method embodiments, and will not be repeated here.

[0115] It should be noted that the division of the various modules in the above-mentioned image display control system is not unique and is not intended as a specific limitation.

[0116] Based on the above embodiments, this application also provides an image display device, the system block diagram of which can be as follows: Figure 6 As shown. It should be noted that the above-mentioned image display device is a multi-zone MiniLED backlit LCD TV, which is used as an example in this application embodiment, but is not intended to be a specific limitation.

[0117] Specifically, the image display device includes a main control board 1 and a liquid crystal display screen 2. The system on-chip 11 in the main control board 1 is communicatively connected to the timing controller 21 in the liquid crystal display screen 2. The system on-chip 11 obtains blanking period information through the row scan strobe signal output by the timing controller 21.

[0118] The above-mentioned system-on-chip 11 performs backlight control on the backlight array 22 in the above-mentioned liquid crystal display screen 2 based on any of the above-mentioned image display control methods.

[0119] Specifically, such as Figure 6 As shown, the image display device includes a main control board 1 and a liquid crystal display screen 2. The main control board 1 includes a system on-chip 11 and a power module 12. The liquid crystal display screen 2 includes a timing controller 21, a backlight array 22 and a liquid crystal glass 23.

[0120] Specifically, the System-on-a-Chip (SOC) on the main control board 1 sends the processed image information to the timing controller 21 on the LCD screen 2. Different LCD screens 2 will have different built-in timing controllers 21 and software according to the characteristics of their own LCD glass 23. The timing controller 21 adjusts and processes the image information sent by the SOC to generate a signal suitable for the current LCD glass 23 to display, and sequentially drives the liquid crystal molecules to flip in a line-by-line scanning manner. At the same time, the SOC controls the power module 12 to generate a synchronous backlight driving signal to control the MiniLED backlight array 22, which, in conjunction with the flipping of the liquid crystal molecules, realizes the transmission and blocking of backlight, thereby displaying the corresponding image.

[0121] However, in the display signal generated by the timing controller 21, after scanning the last liquid crystal pixel of each line of the liquid crystal glass 23, it does not immediately jump to the first liquid crystal pixel of the next line and start displaying again. Instead, there is a line scan blanking time during which no new image signal is projected onto the liquid crystal glass 23. The start and end points of this time can be accurately obtained by the line scan strobe signal (Gout, Gate Output Signal) output by the timing controller 21 or its internal register. Figure 6 In the middle, the timing controller 21 feeds back the row scan strobe signal (i.e., the Gout signal) to the on-chip system 11.

[0122] In this embodiment, the circuit is simply modified so that the system-on-a-chip 11 in the main control board 1 is communicatively connected to the timing controller 21 in the liquid crystal display 2. The Gout signal of the timing controller 21 is sent back to the SOC, allowing the SOC to identify the start and end times of the line scan blanking signal, or the SOC can directly read the internal register of the timing controller 21 to obtain the time information. Combined with the dynamic effects and regional brightness characteristics of the current image signal, the SOC controls the power module 12 during this blanking time to generate backlight drive signals with different on-time and intensity adjustments. This adaptively adjusts the backlight brightness of the currently scanned line, reducing image display residue when the liquid crystal molecules in that line have not fully flipped and switched, mitigating image trailing, and thus optimizing the dynamic image.

[0123] This allows for adjustment of the backlight duration and intensity during the horizontal scanning blanking process of the television. Leveraging the multi-zone advantage of the MiniLED backlight array, the backlight can be locally adjusted, enabling flexible backlight control. Furthermore, adaptive backlight adjustment based on the image characteristics of the current television content better matches the displayed image, reducing image trailing and improving image clarity and smoothness. It also reduces television energy consumption, optimizes heat dissipation, and enhances the stability and lifespan of the television.

[0124] Those skilled in the art will understand that Figure 6 The system block diagram shown is only a partial structural diagram related to the solution of this application and does not constitute a limitation on the solution of this application. The specific image display device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0125] In one embodiment, a smart terminal is provided, the smart terminal including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of any of the image display control methods provided in the embodiments of this application.

[0126] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of any of the image display control methods provided in this application.

[0127] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0128] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the above device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above device can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0129] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0130] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0131] In the embodiments provided in this application, it should be understood that the disclosed systems / terminal devices and methods can be implemented in other ways. For example, the system / terminal device embodiments described above are merely illustrative. For instance, the division of modules or units described above is merely a logical functional division, and in actual implementation, it can be divided in other ways. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0132] If the integrated modules / units described above are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, and software distribution media, etc. It should be noted that the content included in the computer-readable storage medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction.

[0133] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions are not in essence a departure from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An image display control method, characterized in that, The method includes: Obtain the blanking period information of the current display scan line corresponding to the currently displayed image, and the target backlight array row partition corresponding to the current display scan line; Obtain the image dynamic features corresponding to the currently displayed image, and control the blanking period backlight on-time of the target backlight array row partition based on the image dynamic features and the blanking period information; The brightness characteristics of the target image region are obtained, and the backlight intensity of the blanking period of the target backlight array row partition is controlled according to the brightness characteristics and the blanking period information. The target image region is the image region in the currently displayed image that corresponds to the currently displayed scan row.

2. The image display control method according to claim 1, characterized in that, The step of obtaining the blanking period information of the current display scan line corresponding to the current display image, and the target backlight array row partition corresponding to the current display scan line, includes: The system-on-chip based on the image display device obtains the blanking period information of the current display scan line corresponding to the currently displayed image, wherein the blanking period information includes the blanking period start time and the blanking period end time; The target backlight array row partition corresponding to the current display scan row is determined from the multiple backlight array row partitions of the image display device.

3. The image display control method according to claim 1, characterized in that, The step of obtaining the image dynamic features corresponding to the currently displayed image, and controlling the blanking period backlight on-time of the target backlight array row partition based on the image dynamic features and the blanking period information, includes: Obtain the image dynamic features corresponding to the currently displayed image, wherein the image dynamic features are used to characterize the motion speed of objects or scenes in the currently displayed image; Based on the image dynamic features and the preset backlight duration matching table, determine the backlight duration adjustment coefficient that matches the image dynamic features; Based on the backlight duration adjustment coefficient and the blanking period information, the blanking period backlight on-time of the target backlight array row partition is controlled.

4. The image display control method according to claim 3, characterized in that, The backlight duration adjustment coefficient is no greater than 1; The step of controlling the blanking period backlight on-time of the target backlight array row partition according to the backlight duration adjustment coefficient and the blanking period information includes: The original backlight duration of the blanking period corresponding to the row partition of the target backlight array is determined based on the blanking period information. The original backlight duration of the blanking period is adjusted according to the backlight duration adjustment coefficient to obtain the target backlight duration of the blanking period corresponding to the row partition of the target backlight array; Backlight control is performed on the target backlight array row partitions based on the target backlight duration during the blanking period.

5. The image display control method according to claim 1, characterized in that, The step of acquiring the regional brightness features of the target image region and controlling the backlight intensity of the target backlight array row partitions during the blanking period based on the regional brightness features and the blanking period information includes: Obtain the overall brightness value of the currently displayed image and the overall brightness value of the target image region; Based on the ratio of the overall brightness value of the region to the overall brightness value of the image, the regional brightness coefficient of the target image region is determined, and the regional brightness coefficient is used as the regional brightness feature of the target image region. Based on the regional brightness coefficient and the blanking period information, the blanking period backlight intensity of the target backlight array row partition is controlled.

6. The image display control method according to claim 5, characterized in that, The step of controlling the backlight intensity of the target backlight array row partition during the blanking period based on the regional brightness coefficient and the blanking period information includes: Based on the area brightness coefficient and the preset backlight intensity matching table, determine the blanking period backlight intensity adjustment coefficient that matches the area brightness coefficient; The blanking period corresponding to the target backlight array row partition is determined based on the blanking period information, and the original backlight drive current intensity of the target backlight array row partition during the blanking period is obtained. The original backlight drive current intensity during the blanking period is adjusted according to the blanking period backlight intensity adjustment coefficient to obtain the target backlight drive current intensity during the blanking period. Backlight control is performed on the row partitions of the target backlight array based on the target backlight driving current intensity during the blanking period.

7. The image display control method according to any one of claims 1 to 6, characterized in that, The method further includes: Obtain the device type of the image display device; Adjust the blanking period backlight on-time and / or blanking period backlight intensity of the target backlight array row partitions according to the device type.

8. An image display control system, characterized in that, The system includes: The data acquisition module is used to acquire the blanking period information of the current display scan line corresponding to the current display image, as well as the target backlight array row partition corresponding to the current display scan line; The backlight duration adjustment module is used to obtain the image dynamic features corresponding to the currently displayed image, and control the backlight on-time of the blanking period of the target backlight array row partition according to the image dynamic features and the blanking period information; The backlight intensity adjustment module is used to acquire the regional brightness characteristics of the target image area, and control the backlight intensity of the blanking period of the target backlight array row partition according to the regional brightness characteristics and the blanking period information, wherein the target image area is the image area in the currently displayed image corresponding to the currently displayed scan line.

9. An image display device, characterized in that, The image display device includes a main control board and an LCD screen. The system-on-a-chip in the main control board is communicatively connected to the timing controller in the LCD screen. The system-on-a-chip obtains blanking period information through the row scan strobe signal output by the timing controller. The system-on-chip controls the backlight array in the liquid crystal display screen based on the image display control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the image display control method as described in any one of claims 1 to 7.

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